LG KF750 KF755c Secret Service Manual

259
Date: May, 2008 / Issue 1.0 Service Manual Model : KF750/KF755c Service Manual KF750/KF755c Internal Use Only

Transcript of LG KF750 KF755c Secret Service Manual

Page 1: LG KF750 KF755c Secret Service Manual

Date: May, 2008 / Issue 1.0

Serv

ice M

an

ual

Mo

del : K

F750/K

F755c

Service ManualKF750/KF755c

Internal Use Only

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1. INTRODUCTION .............................. 51.1 Purpose................................................... 5

1.2 Regulatory Information............................ 5

2. PERFORMANCE...............................72.1 System Overview.....................................7

2.2 Usable environment .................................8

2.3 Radio Performance ..................................9

2.4 Current Consumption.............................18

2.5 RSSI.......................................................18

2.6 Battery Bar .............................................18

2.7 Sound Pressure Level............................19

2.8 Charging ................................................20

3. TECHNICAL BRIEF ........................213.1 Digital Baseband(DBB) & Multimedia

Processor...............................................21

3.2 GAM Hardware Subsystem ...................45

3.3 Audio Part ..............................................57

3.4 GPADC(General Purpose ADC) andAUTOADC2 ...........................................65

3.5 Charger control ......................................663.6 Voltage Regulation.................................72

3.7 RF Technical Description.......................73

4. TROUBLE SHOOTING ...................844.1 Power ON Trouble .................................84

4.2 USB Trouble ..........................................85

4.3 SIM Detect Trouble ................................86

4.4 MicroSD card Trouble ............................87

4.5 Keypad, Touch Button and Touch Screen Trouble ...........................88

4.6 Multi EL lighting Trouble ........................93

4.7 Camera Trouble .....................................97

4.8 Main LCD Trouble................................103

4.9 Keypad Backlight Trouble ....................105

4.10 Folder ON/OFF Trouble .....................107

4.11 Audio Trouble Shooting .....................109

4.12 Charger Trouble Shooting..................128

4.13 Checking Bluetooth Block ..................131

4.14 RF Component...................................138

4.15 Procedure to check ............................139

4.16 Checking Common Power Source Block......................................140

4.17 Checking VCXO Block .......................145

4.18 Checking Front End Module Block.....150

4.19 Checking Front End Module Block input logic .................................151

4.20 Checking WCDMA Block ...................154

4.21 Checking GSM Block .........................169

5. DOWNLOAD .................................1845.1 LGDP2 .................................................184

5.2 Download .............................................186

6. BLOCK DIAGRAM........................188

7. Circuit Diagram ............................191

8. BGM Pin Map................................203

9. PCB LAYOUT................................209

10. Calibration & RF Auto TestProgram (Hot Kimchi)................219

10.1 General Description ...........................219

10.2 XCALMON Environment ....................219

10.3 Calibration Environment.....................220

10.4 Program Operation ............................221

11. Stand-alone Test ........................22611.1 General Description ...........................226

11.2 Program Operation ............................227

11.3 Stand-alone Test................................230

12. EXPLODED VIEW &REPLACEMENT PART LIST ......233

12.1 EXPLODED VIEW .............................233

12.2 Replacement Parts ............................235

12.3 Accessory ..........................................258

Table Of Contents

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1.1 Purpose

This manual provides the information necessary to repair, calibration, description and download thefeatures of this model.

1.2 Regulatory Information

A. Security

Toll fraud, the unauthorized use of telecommunications system by an unauthorized part (for example,persons other than your company’s employees, agents, subcontractors, or person working on yourcompany’s behalf) can result in substantial additional charges for your telecommunications services.System users are responsible for the security of own system.There are may be risks of toll fraud associated with your telecommunications system. System usersare responsible for programming and configuring the equipment to prevent unauthorized use. Themanufacturer does not warrant that this product is immune from the above case but will preventunauthorized use of commoncarrier telecommunication service of facilities accessed through orconnected to it. The manufacturer will not be responsible for any charges that result from suchunauthorized use.

B. Incidence of Harm

If a telephone company determines that the equipment provided to customer is faulty and possiblycausing harm or interruption in service to the telephone network, it should disconnect telephoneservice until repair can be done. A telephone company may temporarily disconnect service as long asrepair is not done.

C. Changes in Service

A local telephone company may make changes in its communications facilities or procedure. If thesechanges could reasonably be expected to affect the use of the phones or compatibility with the network, the telephone company is required to give advanced written notice to the user, allowing the userto take appropriate steps to maintain telephone service.

D. Maintenance Limitations

Maintenance limitations on the phones must be performed only by the manufacturer or its authorizedagent. The user may not make any changes and/or repairs expect as specifically noted in this manual.Therefore, note that unauthorized alternations or repair may affect the regulatory status of the systemand may void any remaining warranty.

1. INTRODUCTION

1. INTRODUCTION

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E. Notice of Radiated Emissions

This model complies with rules regarding radiation and radio frequency emission as defined by localregulatory agencies. In accordance with these agencies, you may be required to provide informationsuch as the following to the end user.

F. Pictures

The pictures in this manual are for illustrative purposes only; your actual hardware may look slightlydifferent.

G. Interference and Attenuation

A phone may interfere with sensitive laboratory equipment, medical equipment, etc. Interference fromunsuppressed engines or electric motors may cause problems.

H. Electrostatic Sensitive Devices

ATTENTION

Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the sign.Following information is ESD handling:

• Service personnel should ground themselves by using a wrist strap when exchange system boards.• When repairs are made to a system board, they should spread the floor with anti-static mat which is

also grounded.• Use a suitable, grounded soldering iron.• Keep sensitive parts in these protective packages until these are used.• When returning system boards or parts like EEPROM to the factory, use the protective package as

described.

1. INTRODUCTION

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2. PERFORMANCE

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2.1 System Overview

2. PERFORMANCE

Item Specification

Shape GSM900/1800/1900 & WCDMA Slide type - Dual Mode Handset

Size 50.8X102.8X11.8 mm

Weight 116g (with standard battery)

Power 800mAh Li-Ion

Talk Time Over 170 Min (WCDMA, Tx=12 dBm, Voice)

Over 190 Min (GSM, Tx=Max, Voice)

Standby Time Over 220 hrs (WCDMA, DRX=2.56)

Over 220 hrs (GSM, Paging period=5)

Antenna Intenna type

Main LCD 2.4"(320x240), 260K TFT Color LCDs

Main LCD BL White LED Backlight

Vibrator Yes (Coin Type)

Speaker Yes

MIC Yes (SMD Type)

Receiver Yes

Earphone Jack Yes

SIM Socket Yes(SIM Block Type) : 3.0V & 1.8V

Volume Key Push Type ( + , - )

Voice Key Push Type

External Memory T - Flash Socket

I/O Connect 18 Pin

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2.2 Usable environment

1) Environment

2) Environment (Accessory)

* CLA : 12~24V(DC).

2. PERFORMANCE

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Item Specification Unit

Voltage 3.7 (Typ), 3.4 (Min), (Shut Down: 3.23) V

Operation Temp -20 ~ + 60 °C

Storage Temp -30 ~ + 85 °C

Humidity max. 85 %

Item Spec. Min Typ. Max Unit

Power Available power 100 220 240 Vac

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2. PERFORMANCE

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2.3 Radio Performance

1) Transmitter-GSM Mode

No Item GSM DCS/PCS

1 Conducted MS allocated 100k~1GHz -39dBm 9k~1GHz -39dBm

Spurious Channel 1G~1710MHz -33dBm

Emission 1G~12.75GHz -33dBm 1710M~1785MHz -39dBm

1785M~12.75GHz -33dBm

Idle Mode 100k~880MHz -60dBm 100k~880MHz -60dBm

880M~915MHz -62dBm 880M~915MHz -62dBm

915M~1000Mz -60dBm 915M~1000MHz -60dBm

1G~1.71GHz -50dBm 1G~1.71GHz -50dBm

1.71G~1.785GHz -56dBm 1.71G~1.785GHz -56dBm

1.785G~12.75GHz -50dBm 1.785G~12.75GHz -50dBm

Radiated MS allocated 30M~1GHz -36dBm 30M~1GHz -36dBm

Spurious Channel 1G~1710MHz -30dBm

Emission 1G~4GHz -30dBm 1710M~1785MHz -36dBm

1785M~4GHz -30dBm

Idle Mode 30M ~ 880MHz -57dBm 30M~880MHz -57dBm

880M ~ 915MHz -59dBm 880M~915MHz -59dBm

915M~1GHz -57dBm 915M~1GHz -57dBm

1G~1.71GHz -47dBm 1G 1.71GHz -47dBm

1.71G~1.785GHz -53dBm 1.71G~1.785GHz -53dBm

1.785G~4GHz -47dBm 1.785G~4GHz -47dBm

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2. PERFORMANCE

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No Item GSM DCS/PCS

2 Frequency Error ± 0.1ppm ± 0.1ppm

3 Phase Error ± 5(RMS) ± 5(RMS)

± 20(PEAK) ± 20(PEAK)

4 Frequency Error 3dB below reference sensitivity 3dB below reference sensitivity

Under Multipath and RA250 : ± 200Hz RA250: ± 250Hz

Interference Condition HT100 : ± 100Hz HT100: ± 250Hz

TU50 : ± 100Hz TU50: ± 150Hz

TU3 : ± 150Hz TU1.5: ± 200Hz

5 Output RF Due to 0 ~ 100kHz +0.5dB 0 ~ 100kHz +0.5dB

Spectrum modulation 200kHz -30dB 200kHz -30dB

250kHz -33dB 250kHz -33dB

400kHz -60dB 400kHz -60dB

600 ~ 1800kHz -66dB 600 ~ 1800kHz -60dB

1800 ~ 3000kHz -69dB 1800 ~ 6000kHz -65dB

3000 ~ 6000kHz -71dB ≥ 6000kHz -73dB

≥ 6000kHz -77dB

Due to 400kHz -19dB 400kHz -22dB

Switching 600kHz -21dB 600kHz -24dB

transient 1200kHz -21dB 1200kHz -24dB

1800kHz -24dB 1800kHz -27dB

7 Intermodulation attenuation - Frequency offset 800kHz

Intermodulation product should

be Less than 55dB below the

level of Wanted signal

Page 10: LG KF750 KF755c Secret Service Manual

No Item GSM DCS/PCS

8 Transmitter Output Power Level Power Toler. Level Power Toler.

5 33 ±3 0 30 ±3

6 31 ±3 1 28 ±3

7 29 ±3 2 26 ±3

8 27 ±3 3 24 ±3

9 25 ±3 4 22 ±3

10 23 ±3 5 20 ±3

11 21 ±3 6 18 ±3

12 19 ±3 7 16 ±3

13 17 ±3 8 14 ±3

14 15 ±3 9 12 ±4

15 13 ±3 10 10 ±4

16 11 ±5 11 8 ±4

17 9 ±5 12 6 ±4

18 7 ±5 13 4 ±4

19 5 ±5 14 2 ±5

15 0 ±5

9 Burst timing Mask IN Mask IN

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2. PERFORMANCE

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2. PERFORMANCE

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2) Transmitter-WCDMA Mode

No Item Specification

1 Maximum Output Power Class 3 : +24dBm(+1/-3dB)

Class4: +21dBm(±2dB)

2 Frequency Error ± 0.1ppm

3 Open Loop Power control in uplink ± 9dB@normal, ± 12dB@extreme

4 Inner Loop Power control in uplink Adjust output(TPC command)

cmd 1dB 2dB 3dB

+1 +0.5/1.5 +1/3 +1.5/4.5

0 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5

-1 -0.5/-1.5 -1/-3 -1.5/-4.5

Group (10 equel command group)

+1 +8/+12 +

5 Minimum Output Power -50dBm(3.84MHz)

6 Out-of-synchronization handling of output power Qin/Qout : PCCH quality levels

Toff@DPCCH/Ior : -22 -> -28dB

Ton@DPCCH/Ior : -24 -> -18dB

7 Transmit OFF Power -56dBm(3.84MHz)

8 Transmit ON/OFF Time Mask ± 25us

PRACH,CPCH,uplinlk compressed mode

9 Change of TFC ± 25us

Power varies according to the data rate DTX :

DPCH off (minimize interference between UE)

10 Power setting in uplink compressed ± 3dB(after 14slots transmission gap)

11 Occupied Bandwidth(OBW) 5MHz(99%)

12 Spectrum emission Mask -35-15*(∆f-2.5)dBc@∆f=2.5~3.5MHz,30k

-35-1*(∆f-3.5)dBc@∆f=3.5~7.5MHz,1M -39-

10*(∆f-7.5)dBc@∆f=7.5~8.5MHz,1M

-49dBc@∆f=8.5~12.5MHz,1M

13 Adjacent Channel Leakage Ratio(ACLR) 33dB@5MHz, ACP>-50dBm

43dB@10MHz, ACP>-50dBm

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2. PERFORMANCE

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No Item Specification

14 Spurious Emissions (*: additional requirement) -36dBm@f=9~150KHz, 1K BW -

-36dBm@f=150KHz~30MHz, 10k

-36dBm@f=30~1000MHz, 100k

-30dBm@f=1~12.75GHz, 1M

-41dBm*@1893.5~1919.6MHz, 300k

-67dBm*@925~935MHz, 100k

-79dBm*@935~960MHz, 100k

-71dBm*@1805~1880MHz, 100k

15 Transmit Intermodulation -31dBc@5MHz, Interferer -40dBc

-41dBc@10MHz, Interferer -40dBc

16 Error Vector Magnitude (EVM) 17.5%(>-20dBm)

(@12.2K, 1DPDCH+1DPCCH)

17 Transmit OFF Power -15dB@SF=4, 768kbps,

multi-code transmission

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2. PERFORMANCE

3)Receiver-GSM Mode

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No Item GSM850/900 DCS & PCS

1 Sensitivity (TCH/FS Class II) -105dBm -105dBm

2 Co-Channel Rejection (TCH/FS C/Ic=7dB C/Ic=7dB

Class II, RBER, TU high/FH)

3 Adjacent 200kHz C/Ia1=-12dB C/Ia1=-12dB

Channel

Rejection 400kHz C/Ia2=-44dB C/Ia2=-44dB

4 Intermodulation Rejection Wanted Signal: -98dBm Wanted Signal :-96dBm 1st

1’st interferer: -44dBm 1’st interferer: -44dBm

2’st interferer: -45dBm 2’st interferer: -44dBm

5 Blocking Response Wanted Signal: -101dBm Wanted Signal: -101dBm

(TCH/FS Class II, RBER) Unwanted Signal: Unwanted Signal:

Depend on freq. Depend on freq.

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2. PERFORMANCE

4) Receiver-WCDMA Mode

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No Item Specification

1 Reference Sensitivity Level -106.7dBm(3.84M)

2 Maximum Input Level -25dBm(3.84MHz)

-44dBm/3.84MHz(DPCH_Ec)

UE@+20dBm output power(class3)

3 Adjacent Channel Selectivity (ACS) 33dB

UE@+20dBm output power(class3)

4 In-band Blocking -56dBm/3.84MHz@10MHz

UE@+20dBm output power(class3)

-44dBm/3.84MHz@15MHz

UE@+20dBm output power(class3)

5 Out-band Blocking -44dBm/3.84MHz@f=2050~2095 &

2185~2230MHz, band a)

UE@+20dBm output power(class3)

-30dBm/3.84MHz@f=2025~2050 &

2230~2255MHz, band a)

UE@+20dBm output power(class3)

-15dBm/3.84MHz@f=1~2025 &

2255~12500MHz, band a)

UE@+20dBm output power(class3)

6 Spurious Response -44dBm CW

UE@+20dBm output power(class3)

7 Intermodulation Characteristic -46dBm CW@10MHz &

-46dBm/3.84MHz@20MHz

UE@+20dBm output power(class3)

-57dBm@f=9KHz~1GHz, 100k BW

8 Spurious Emissions -47dBm@f=1~12.75GHz, 1M

-60dBm@f=1920~1980MHz, 3.84MHz

-60dBm@f=2110~2170MHz, 3.84MHz

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2. PERFORMANCE

5) Transmitter

5.1 Transmitter

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No Item Specification

1 Out Power Class 2 : -6~4dBm

2 Power Density Power density < 20dBm per 100kHz EIRP

3 Power Control Option

2dB ≤ step size ≤ 8dB

4 TX Output Spectrum -Frequency range fmax & fmin @ below the level of -30dBm

(100khz BW) within 2.4GHz~2.4835GHz

5 TX Output Spectrum -20dB Bandwidth ≤ 1MHz

6 Tx Output Spectrum -Adjacent channel Po ≤ -20dBm @ C/I = 2MHz

≤ -40dBm @ C/I ≥ 3MHz

7 Modulation Characteristics 140kHz ≤ delta f1 avg ≤ 175kHz

delta f2max ≥ 115kHz at least 99.9% of all

deltaf2max delta f2avg/deata f1avg ≥ 0.8

8 Init. Carrier Freq. Tolerance ≤ ±75KHz

9 Carrier Frequency Drift 1 slot : ≤ ±25kHz

3 slot : ≤ ±40kHz

5 slot : ≤ ±40kHz

Maximum drift rate ≤ 20KHz/50usec

10 Out of Band Spurious Emissions Freq.Range Operating Standby

30MHz~1GHz -36dBm -57dBm

Above 1GHz~ -30dBm -47dBm

12.75GHz

1.8~1.9GHz -47dBm -47dBm

5.15~5.3GHz -47dBm -47dBm

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2. PERFORMANCE

5.2 Transmitter

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No Item Specification

1 Sensitivity single slot packets BER ≤ 0.1%@-70dBm

2 Sensitivity multi slot packets BER ≤ 0.1%@-70dBm

3 C/I performance BER ≤ 0.1%@ (Low,Mid,High Frequency)

2405MHz, 2441MHz, 2477MHz

Interference Ratio

Co-Channel interference, C/I co-channel 11dB

Adjacent(1MHz)interference, C/I 1MHz 0dB

Adjacent(2MHz)interference, C/I 2MHz -30dB

Adjacent( ≥ 3MHz)interference, C/I ≥ 3MHz -40dB

Adjacent( ≥ 3MHz)interference to in band -9dB

mirror frequency, C/I image ±1MHz -20dB

4 Blocking Characteristic BER ≤ 0.1%@wanted signal -67dBm

interfering Signal Frequency Power Level

30MHz~2000MHz -10dBm

2000MHz~2400MHz -27dBm

2500MHz~3000MHz -27dBm

3000MHz~12.75GHz -10dBm

5 Intermodluation Performance BER ≤ 0.1%@wanted signal -64dBm

static sinwave signal at f1=-39dBm

a BT modulated signal f2=-39dBm(payload PRBS15)

6 Maximum Input Level BER ≤ 0.1%@-20dBm

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2. PERFORMANCE

2.4 Current Consumption

(VT test : Speaker off, LCD backlight On)

2.5 RSSI

2.6 Battery Bar

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Stand by Voice Call VT

WCDMA Only 220 Hours = 3.6 mA 170 Min = 280 mA 125 Min= 380 mA

(DRX=2.56) (Tx=12dBm) (Tx=12dBm)

GSM 220 Hours = 3.6 mA 190 Min = 250 mA

(paging=5period) (Tx=Max)

No WCDMA GSM

1 BAR 7 → 5 -93 (+/- 2dB) -90 (+/- 2dB)

2 BAR 5 → 4 -98 (+/- 2dB) -104 (+/- 2dB)

3 BAR 4 → 2 -101 (+/- 2dB) -108 (+/- 2dB)

4 BAR 2 → 1 -104 (+/- 2dB) -110 (+/- 2dB)

5 BAR 1 → 0 -106 (+/- 2dB) -112 (+/- 2dB)

Indication Standby

Bar 3 → 2 3.69 ± 0.05V

Bar 2 → 1 3.53 ± 0.05V

Bar 1 → Icon Blinking 3.40 ± 0.05V

Low voltage, warning message 3.40 ± 0.05V

Power OFF 3.26 ± 0.05V

Page 18: LG KF750 KF755c Secret Service Manual

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2. PERFORMANCE

2.7 Sound Pressure Level

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No Test Item Specification

1 Sending Loudness Rating (SLR)NOM

8 ± 3 dBMAX

2 Receiving Loudness Rating (RLR)NOM -1 ± 3dB

MAX -15 ± 3dB

3 Side Tone Masking Rating (STMR)NOM

17dB overMAX

4 Echo Loss (EL)NOM

40dB overMAX

5 Sending Distortion (SD) refer to TABLE 30.3

6 Receiving Distortion (RD) refer to TABLE 30.4

7 Idle Noise-Sending (INS)NOM

-64dBm0p underMAX

8 Idle Noise-Receiving (INR)NOM -47dBPA under

MAX -36dBPA under

9 Sending Loudness Rating (SLR)NOM

8 ± 3dBMAX

10 Receiving Loudness Rating (RLR)NOM -1 ± 3dB

MAX -12 ± 3dB

11 Side Tone Masking Rating (STMR)NOM 25dB over

MAX

12 Echo Loss (EL)NOM

40dB overMAX

13 Sending Distortion (SD) refer to TABLE 30.3

14 Receiving Distortion (RD) refer to TABLE 30.4

15 Idle Noise-Sending (INS)NOM

-55dBm0p underMAX

16 Idle Noise-Receiving (INR)NOM -45dBPA under

MAX -40dBPA under

MS

HEAD SET

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2. PERFORMANCE

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2.8 Charging

• Normal mode: Complete Voltage: 4.2V

Charging Current: 500mA

• Await mode: In case of During a Call, should be kept 3.9V

(GSM: It should be kept 3.9V in all power level

WCDMA: It will not be kept 3.9V in some power level)

• Extend await mode: At Charging prohibited temperature(0°C under or 45°C over)

(GSM: It should be kept 3.7V in all power level

WCDMA: It will not be kept 3.7V in some power level)

No Test Item Specification

TDMA NOISEGSM

SEND

GSM: Power Level: 5 REV.

DCS: Power Level: 0DCS

SEND

17(Cell Power: -90 ~ -105dBm) REV.

Acoustic(Max Vol.)GSM

SEND

MS/HEADSET SLR: 8 ± 3dB REV.

MS/HEADSET RLR: -13 ± 1dB/-15dBDCS

SEND

(SLR/RLR: mid-Value Setting) REV.

MS

Headset

-62dBm

under

Page 20: LG KF750 KF755c Secret Service Manual

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3. TECHNICAL BRIEF

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3.1 Digital Baseband(DBB) & Multimedia Processor

3.1.1 General Description

• Access subsystem

- Access Central Processing Unit (CPU) subsystem - ARM926, Joint Test Action Group (JTAG),

Embedded Trace Module (ETM), Instruction and Data (I&D)-cache, and I&D-TCM

- Access peripheral subsystems - Subscriber Identity Module (SIM) interface, IrDA®, Universal

Serial Bus (USB), Universal Asynchronous Receiver/Transmitter (UART), and so on

- Digital Signal Processor (DSP) subsystem - CEVA-X1620, JTAG, Static Random Access Memory

(SRAM), and Program Data Read Only Memory (PDROM)

- EDGE/GSM/GPRS (EGG) subsystem - EGG hardware accelerators

- WCDMA subsystem - WCDMA hardware accelerators

• Application subsystem

- Application CPU subsystem - containing ARM926, JTAG, ETM, I&D-cache, and I&D-TCM

- Application peripheral subsystems - I2C¢‚, keypad, UART, and so on

- Graphics subsystem - XGAM subsystem

- Audio Processing Execution (APEX) and video encoder subsystems In addition to the two

subsystems above, there is also a test block, chip control block, and a pad multiplexing block

residing at the top level

• DSP

- The Digital Signal Processor Subsystem (DSPSUB) includes a DSP megacell, which contains the

DSP CPU together with a tightly coupled memory. The DSP is the Ceva-X 1620 core with a 64 kB

instruction RAM and a 64 kB data RAM. It also contains debug logic and interfaces. In addition to

the megacell, the DSPSUB includes external memories, peripheral units, and interfaces. The DSP

megacell is clocked at 208 MHz.

- The DSPSUB includes an AHB master and an AHB slave interface. The AHB master provides a

direct access to the Internal Random Access Memory (IRAM) in the EGG core through the AHB.

The AHB slave interface allows the CPU and the DMA to access in the program and data RAM

residing in the DSPSUB.

3. TECHNICAL BRIEF

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3. TECHNICAL BRIEF

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• Multi-media Processor(MMIC : ZR3453X )

- The ZR3453X is an advanced multimedia coprocessor for cellular devices. ZR3453X is an MCP

that includes a multimedia core and SDRAM memory chip. The multimedia core performs audio

and video recording, playback, and editing; still image capture (DSC), viewing, and editing;

MIDI/MP3 playback (for ring tones); 3D acceleration (for gaming). The memory chip in the MCP is

a 16MB (2MB) mobile SDRAM (that can be enlarged by packaging to 64MB), used both for

program code and for working data (both stream data and frame buffers).

• WCDMA subsystem

- The digital baseband controller WCDMA subsystem incorporate a WCDMA modem

- An interface to the WCMDA together with memory control and an internal single port RAM. The

WCDMA subsystem has three AHB slave interfaces.

- The Ericsson DB 3150 also includes HSDPA class 6 functionality.

- The WCDMA subsystem is handled and provided by Ericsson.

• XGAM subsystem

- The XGAM subsystem is a graphics acceleration module that provides hardware support in the

creation of visual imagery and the transfer of this data to a display. The XGAM also provides

support for connecting a Camera module. The visual data could be graphics, still images, or video.

- The XGAM subsystem is handled and provided by Ericsson.

• Operation and Services

- I2C™ Interface

- SIM Interfaces

- General Purpose I/O (GPIO) Interface

- External Memory Interface that supports NAND, NOR, PSRAM, SDRAM

- JTAG

- RTC

- ETM (in Prototype Package)

Page 22: LG KF750 KF755c Secret Service Manual

- 23 -

3. TECHNICAL BRIEF

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

MMemorySDRAM (1G)NAND (2G)

<Numeric Key>

<u- SD card>

<5 Mega>

<VGA>

<LCD> < USB Transceiver >

<BT + FM Radio>

<Spk><Mic>

RF3100WCDMA

Transceiver

AB3000Analog

Baseband Process

or ((Audio)

RF3000GSM / EDGE

Transceiver

GSM/EDGE PA + Ant Sw.

ANT

DB3150Digital Baseband Processor (Dual

core)

Access CPU

Application CPU

BSU

18P

in C

radl

eC

onne

ctor

18P

in C

radl

eC

onne

ctor

tuO VT

TRAU

nocomeRkcajraE

SH0.2

AB3000Analog

Baseband Processor

(Power Management)

<SIM>

<Battery>

<Vibrator>

Amp

Touch Panel

SUB PMIC

EL Controller

Touch Button

AccelerometerLight Sensor

EMIF2

EMIF1

PDI

CDI

I2C_2S

D_I

F

I2C_1

GPIO_I2C_2

GPIO_I2C_1

GPIO_I2C_2

Key

_IF

Vibrator_IF(PWM)

BAT_IF

SIM_IF

Zoran_GPIOI2S_0

PCM

SPI

USB

TV_Out

USB

Headset

FM_ANT

Zoran_I2C

Zoran_CDI

LED

< Zoran >

I2S_1

To EMP CAM IF

From Zoran LCD IF

Figure 3-1-1 KF750 Block Diagram

Page 23: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 24 -

3.1.2 External memory interface

RF calibration data, Audio parameters and battery calibration data etc are stored in flash memory

area.

A. KF750

• 2Gb NAND flash memory +1G SDRAM

DDevicece Part Nam e M akerer Itemem Tim e Size Speeeed

Program speed 200µs 1Page=(2K + 64)Bytes 10.32M Byte/s

Erase speed 1.5ms 1Block=(128K+4K)Bytes 88M Byte/s

NAND flash KAL00900BM -DJ55 Samsung

Figure 3-1-1 KF750 Block Diagram

Device Part Nam e M aker Item Tim e Size Speed

Device Part Nam e M aker Item Tim e Size Speed

Figure 3- 1- 2. External Memory Configuration of KF750

• Data Communication

- IrDA ® (SIR)

- UARTs (ACB, EDB (RS232))

- Slave USB

• Package

- 12 by 12 mm 344 balls, 0.5mm pitch

FPBGA Production Package

Page 24: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 25 -

3.1.3 Hardware Architecture

A. Block Diagram

Figure 3-1-3. Access system of Ericsson DB3150

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 26 -

Figure 3-1-4. Application system of Ericsson DB3150

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LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 27 -

B. CPU Subsystem

• Access CPU subsystem

The digital baseband controller includes an access CPU subsystem, which includes the submodules

described below.

- 32 KiB I-cache

- 16 KiB D-cache

- Page table

- Memory Management Unit (MMU)

- JTAG

- ETM9

- 26 KiB I-TCM

- 8 KiB D-TCM

• Application CPU subsystem

The digital baseband controller includes an Application CPU subsystem, which includes the

submodules described below.

- 32 KiB I-cache

- 16 KiB D-cache

- Page table

- MMU

- JTAG

- ETM9

- 8 KiB I-TCM

- 8 KiB D-TCM

C. Peripheral Hardware Subsystem

The digital baseband controller includes hardware that supports mobile terminal peripherals such as a

MMC, SD, UART, I2C, USB, keypad, and infrared. Collectively, this hardware comprises the

Peripheral subsystem.

The functional blocks of the Peripheral subsystem connect to the peripheral bus through four separate

bridges, which provide a simple interface to support different timing and memory access

arrangements.

Page 27: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

D. DSP Hardware Subsystem

The Digital Signal Processor Subsystem (DSPSUB) includes a DSP megacell, which contains the DSP

CPU together with a tightly coupled memory. The DSP is the Ceva-X 1620 core with a 64 kB

instruction RAM and a 64 kB data RAM. It also contains debug logic and interfaces. In addition to the

megacell, the DSPSUB includes external memories, peripheral units, and interfaces. The DSP

megacell is clocked at 208 MHz.

The DSPSUB includes an AHB master and an AHB slave interface. The AHB master provides a direct

access to the Internal Random Access Memory (IRAM) in the EGG core through the AHB. The AHB

slave interface allows the CPU and the DMA to access in the program and data RAM residing in the

DSPSUB.

E. XGAM Subsystem

The XGAM subsystem is a graphics acceleration module that provides hardware support in the

creation of visual imagery and the transfer of this data to a display. The XGAM also provides support

for connecting a Camera module. The visual data could be graphics, still images, or video.

The XGAM subsystem is handled and provided by Ericsson.

F. System Control Subsystem

The SYSCON resides at the top level of the circuit architecture and is responsible for clock generation

and clock and reset distribution within the digital baseband controller, as well as to external devices.

The block is a slave peripheral under control of the ARM processor. The programming of the SYSCON

controls the fundamental modes of operation within the digital baseband controller. Individual blocks

can also be reset and their clocks held inactive by accessing the appropriate control registers.

3. TECHNICAL BRIEF

- 28 -

Page 28: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 29 -

3.1.4 RF Interface

A. Asta Interface

Asta controls GSM RF part using these signals through GSM RF chip-Gimli.

• RF_DATA_A

• RF_DATA_B

• RF_DATA_C

• RF_DATA_STRB

B. WCDMA Radio Link Interface

• RF_WCDMA_PA_0_EN

• RF_WCDMA_PA_1_EN

• RF_WCDMA_DCDC_EN

• RF_WCDMA_PWRDET_EN

Y4RF_DATA_ARF_DATA_B

AA2Y3

RF_DATA_CY2

RF_DATA_STRB

QDATA_AMP_MSBIDATA_FREQ_MSB

AMP_LSB_FREQ_LSBDCLK_DATSTR

Figure 3-1- 5. Schematic of Asta RF Interface

TP300V7

RF_WCDMA_PWRDET_ENAB6

Y4RF_DATA_ARF_DATA_B

AA2Y3

RF_DATA_CY2

RF_DATA_STRB

AB5RF_WCDMA_DCDC_EN

AB8RF_WCDMA_PA_0_ENRF_WCDMA_PA_1_EN

Y8DAC_I_NEGDAC_I_POS

W8W7

Y10ADC_I_NEGADC_I_POS

W10W9

ADC_Q_NEGADC_Q_POS

Y9

QDATA_AMP_MSBIDATA_FREQ_MSB

AMP_LSB_FREQ_LSBDCLK_DATSTR

WDCDC_EN

WTX_BAND_1_EN

WPOW_DET_EN

WRX_I_NWRX_I_PWRX_Q_NWRX_Q_P

WTX_I_NWTX_I_P

Figure 3-1-6. Schematic of WCDMA RF Interface

Page 29: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3.1.5 SIM Interface

SIM interface scheme is shown in Figure3-1-6.

SIMDAT0, SIMCLK0, SIMRST0 ports are used to communicate DBB(Asta) with ABB(Veronica) and

filter.

3.1.6 UART Interface

UART signals are connected to Asta GPIO through IO connector

3. TECHNICAL BRIEF

- 30 -

SIM (Interface between DBB and ABB)

SIMDAT0 SIM card bidirectional data line

SIMCLK0 SIM card reference clock

SIMRST0 SIM card async/sync reset

Resource Name Note

UART0

ACC_GPIO_2 ACC_UART_RX ACC Receive Data

ACC_GPIO_3 ACC_UART_TX ACC Transmit Data

UART1

APP_GPIO_0 APP_UART_RX APP Receive Data

APP_GPIO_1 APP_UART_TX APP Transmit Data

Table 3-1-2. SIM Interface

Table 3-1-3. UART Interface

VDD

DAT

CLK CARD

RST

SIMVCC

Veronica

SDAT SIMDAT

SCLK SIMCLK

SRST SIMRST

Asta

SIMDAT0

SIMCLK0

SIMRST0

VDDE

10K10K

Figure 3-1-7. SIM Interface

Page 30: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3.1.7 GPIO (General Purpose Input/Output) map

In total 39 allowable resources. This model is using 39 resources.

GPIO Map, describing application, I/O state, and enable level are shown in below table.

3. TECHNICAL BRIEF

- 31 -

Table 3-1-4. Asta ACC GPIO Map Table

DB3150's GPIO GPIO Mapping Init Status

ACC_GPIO_0 ACC_GP00_USB_STP Output low

ACC_GPIO_1 ACC_GP01_USB_DIR input

ACC_GPIO_2 ACC_GP02_UART0_RX input

ACC_GPIO_3 ACC_GP03_UART0_TX Output

ACC_GPIO_4 ACC_GP04_USB_CLK input

ACC_GPIO_5 ACC_GP05_USB_NXT input

ACC_GPIO_6 ACC_GP06_USB_DAT4 input / Output

ACC_GPIO_7 ACC_GP07_USB_DAT5 input / Output

ACC_GPIO_8 ACC_GP10_USB_DAT6 input / Output

ACC_GPIO_9 ACC_GP11_USB_DAT7 input / Output

ACC_GPIO_10 ACC_GP12_TOUCH_LDO_EN Output low

ACC_GPIO_11 ACC_GP13_SPK_AMP_EN Output low

ACC_GPIO_12 ACC_GP14_BT_SPI_INT Input

ACC_GPIO_13 ACC_GP15_FLIPSENSE Input

ACC_GPIO_14 ACC_GP16_FM_GPIO2 Input

ACC_GPIO_15 ACC_GP17_PHFSENSE Input

ACC_GPIO_16 ACC_GP20_USB_CS_PD input / Output

ACC_GPIO_17 ACC_GP21_VC_IO_OFF Output low

ACC_GPIO_18 ACC_GP22_USB_DAT3 input / Output

ACC_GPIO_19 ACC_GP23_BT_SPI_CS0n Output

ACC_GPIO_20 ACC_GP24_BT_SPI_DAT0 Output low

ACC_GPIO_21 ACC_GP25_BT_SPI_DAT1 Input

ACC_GPIO_22 ACC_GP26_BT_SPI_CLK Output low

ACC_GPIO_23 ACC_GP27_AMP_SW_EN Output low

Page 31: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 32 -

Table 3-1-5. Asta APP GPIO Map Table

Table 3-1-5. MMIC APP GPIO Map Table

DB3150's GPIO GPIO Mapping Init Status

APP_GPIO_0 APP_GP00_UART_RX Input

APP_GPIO_1 APP_GP01_UART_TX Output

APP_GPIO_2 APP_GP02_MMP_INT_n Input

APP_GPIO_3 APP_GP03_MMP_PWR_EN Output low

APP_GPIO_4 APP_GP04_TOUCH_SCREEN_INT Input

APP_GPIO_5 APP_GP05_TOUCH_SCREEN_SCL Output

APP_GPIO_6 MICROSD_DAT3 Input

APP_GPIO_7 APP_GP07_3AXIS_INT Input

APP_GPIO_8 APP_GP10_MMP_RESET_N Output low

APP_GPIO_9 APP_GP11_REMOTE_INT Input

APP_GPIO_10 APP_GP12_LCD_ID Input

APP_GPIO_11 APP_GP13_MC_CLKRET Input

APP_GPIO_12 SUB_PM_RESETB Output low

APP_GPIO_13 MOTOR_EN Output low

APP_GPIO_14 APP_GP16_TOUCH_SCREEN_SDA input / Output

DB3150's GPIO GPIO Mapping Init Status

GPIO_0 CI_VSYNC_WITHOUT_FF Output low

GPIO_1 APP_GP05_TOUCH_RESET Output low

GPIO_2 CI_VSYNC Output low

GPIO_3

GPIO_4 MMP_CAM_RESET_N Output low

GPIO_5 MMP_CAM_PWR_EN Output low

GPIO_6 MMP_CAM_PWDN Output low

GPIO_7 FLASH_LED_EN Output low

GPIO_8 FLASH_LED_TORCH Output low

GPIO_9 FLASH_LED_INH Output low

Page 32: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 33 -

3.1.8 USB

The USB block supports the implementation of a °∞High-speed" device fully compliant to USB 2.0

standard. It provides an interface between the CPU (embedded local host) and the USB wire, and

handles USB transactions with minimal CPU intervention.

The USB specification allows up to 15 pairs of endpoints. Data for each endpoint is buffered in RAM

within the USB block and is read/written from the endpoint FIFO using DMA transfers or FIFO register

access. High-speed (high throughput) endpoints can use DMA while slower endpoints can use FIFO

register access.

The USB block can request up to six DMA channels, three for IN endpoints and three for OUT

endpoints.

USB Function Note

USB_STP ULPI stop signal

USB_DIR ULPI direction signal

USB_CLK USB clock

USB_NXT ULPI next signal

USB_DAT0 USB data0

USB_DAT1 USB data1

USB_DAT2 USB data2

USB_DAT3 USB data3

USB_DAT4 USB data4

USB_DAT5 USB data5

USB_DAT6 USB data6

USB_DAT7 USB data7

USB_CS_PD USB chip select

VBUS Power supply for Asta USB block

Table 3-1-6. USB Signal Interface of Asta

Page 33: LG KF750 KF755c Secret Service Manual

- 34 -

3. TECHNICAL BRIEF

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3_OIPG_CCA9N9M

4_OIPG_CCA5_OIPG_CCA

4N

6_OIPG_CCA3P

7_OIPG_CCA4P4R

8_OIPG_CCA9_OIPG_CCA

3R

0_OIPG_CCA1_OIPG_CCA

9K

2R

2P2_OIPG_CCA

9J

KLC_BSU_40PG_CCA

5TAD_BSU_70PG_CCA4TAD_BSU_60PG_CCA

6TAD_BSU_01PG_CCA7TAD_BSU_11PG_CCA

PTS_BSU_00PG_CCARID_BSU_10PG_CCAXR_0TRAU_20PG_CCA

XT_0TRAU_30PG_CCA

TXN_BSU_50PG_CCA

USB_DAT_VPL4

USB_OEM4L3

USB_SE0_VMUSB_DAT1

USB_DAT2USB_DAT0

Figure 3-1-8. Schematic of Asta USB block

V01

1%

deepS hgiH rof reviecsnarT BSU

0.1u

C60

4 3060

TABV

u7.4106C

R60

351

K

R60

612

K

0.1u

C60

3

4.7u

3060

C60

2

8V1_EDDV

3060u1.0006C

4.7u

C60

6

K1506R

0.1u

3060

C60

5

6D

TSET4C

4FSUBV

VC

CF

3

5B1OI_CCV2OI_CCV

2B

5F1LATX2LATX

6F

7ATAD

5ERID

MD1C1D

PDTLUAF

2E

GN

D1

C5

D2

GN

D2

GN

D3

E4

3DDI

NC

1F

1F

2N

C2

5DN_WSPTXN

4D

6E8V1FER

3E3V3GER

2CFERR

PTS

0GFC1E

4B1GFC2GFC

3B

LES_PIHC3C4A

KCOLC0ATAD

1B1A

1ATAD2ATAD

2A3A

3ATAD4ATAD

5A6A

5ATAD6ATAD

6B6C

TEA8051PSI106U

2.2u

C60

7

TXN_BSU_50PG_CCAPTS_BSU_00PG_CCA

1LATX_BSU

MD_BSU

XRT_BSU_SUBV

PD_BSU

DP_SC_BSU_02PG_CCAKLC_BSU_40PG_CCA

0TAD_BSU1TAD_BSU2TAD_BSU3TAD_BSU_22PG_CCA4TAD_BSU_60PG_CCA5TAD_BSU_70PG_CCA6TAD_BSU_01PG_CCA7TAD_BSU_11PG_CCA

RID_BSU_10PG_CCA

Figure 3-1-9. Schematic of USB Transceiver

Page 34: LG KF750 KF755c Secret Service Manual

- 35 -

3. TECHNICAL BRIEF

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3.1.9 Slider ON/OFF Detection

There is a magnet to detect the slide module status, up or down.

If a magnet is close to the hall-effect switch U101, the voltage at Pin 4 of U101 goes to 0V.

Otherwise 1.8V.

This SLIDE_DET signal is delivered to Asta ACC_GP15_FLIPSENSE.

TCETED EDILS

4TUO

DDV1

5MB21006KT101U

21DNG

52DNG

6DDV_OI

CN3

211C

8V1_EDDV

u1.0

u1.0901C

57V2_GDDV

ESNESPILF_51PG_CCA

Figure 3-1-10. Slider On/Off Detector

Page 35: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 36 -

3.1.10 Bluetooth Interface

KF750 supports Bluetooth operation using STLC2593C Bluetooth module.

A. General Description

The Bluetooth interface utilizes the SPI interface for control signals going to and from the Bluetooth

module. The SPI is also used for data transmissions.

It uses the PCM interface for transmitting audio to and from the Bluetooth module.

The Bluetooth module uses both the 26 MHz master clock signal and the 32,768 kHz low-frequency

clock signal for internal timing within the Bluetooth module. The intention is to use the low-frequency

clock as a low-power timing provider and to use the 26 MHz as a high precision timing reference used

mainly by the Bluetooth radio during operation.

The clock request mechanism is used to minimize current consumption for the total system.

The intention is to use the CLKREQ signal to ask for the master clock when needed, for example,

when the Bluetooth radio is operating.

B. SPI Interface

The physical SPI interface is made up of 5 signals : clock, chip select, data in, data out and interrupt.

When the SPI mode is selected , these signals are available through the BT_UART and

BT_HOST_WAKEUP pins.

The SPI interface is Master at the Host side, and Slave at the BT Controller side.

It is designed to work with the H4 protocol. It does not support HCI synchronous data packet transfer.

Data are transferred on the SPI interface in byte format, LSB first.

The SPI interface can operate only in half duplex mode.

C. PCM Interface

The PCM interface is used to send audio to and from the Bluetooth module. The interface is a

synchronous interface using a PCM clock and a PCM sync signal for synchronization. Two data

signals are used for data, one in each direction.

The PCM clock signal operates at frequencies as high as 1 MHz. The word length of the audio data

can be 8 or 16 bits. Furthermore, the PCM interface has a function known as MP-PCM, which is an

addressing scheme, used to have more than two devices talking on the bus.

To add this function, the data pins have to be bi-directional. Additionally, the position of the audio data

relative to the frame sync pulse must be selectable. During the periods within a frame that a device is

not transmitting audio data, it must put both PCM data signals in a high-impedance state to allow other

devices access.

Page 36: LG KF750 KF755c Secret Service Manual

D. Master Clock and Clock Request Interface

The master clock (MCLK) is a 26 MHz signal used as the high precision clock signal for the Bluetooth

module. The signal can be switched on and off by the platform. The master clock request (CLKREQ) is

used by the Bluetooth module to ask for the master clock.

If the Bluetooth module asserts the signal high, it gets the master clock. The other alternative for the

Bluetooth module is to set the clock request output to high impedance state, indicating that it does not

need the master clock. The Bluetooth module receives the master clock, if other parts of the chipset

request it.

E. Low Frequency Clock Interface

The low-frequency clock signal (RTCCLK) is used by the Bluetooth module as a low-power clock. The

clock is used in different Bluetooth modes, like sniff and park, to have a correct timing on the Bluetooth

air interface without having the master clock running.

The low-frequency clock is always present, in some applications even when the chipset is powered

down.

F. STLC2593C

WFBGA 5.0 x 7.5 x 0.8 mm lead-free/RoHs compliant 100 pins

External component: B-BPF (Bluetooth)

PCB footprint < 45mm2

Based on Ericsson Technology Licensing Baseband Core (EBC)

Bluetooth¢‚ specification compliance: V2.0 + EDR.

- Point-to-point, point-to-multi-point (up to 7 slaves) and scatternet capability

- Support ACL and SCO links

- Extended SCO (eSCO) links

- Faster Connection

HW support for packet types

- ACL: DM1, DM3, DM5, DH1, DH3, DH5, 2-DH1, 2-DH3, 2-DH5, 3-DH1, 3-DH3, 3-DH5

- SCO: HV1, HV3 and DV

- eSCO: EV3, EV4, EV5, 2-EV3, 2-EV5, 3-EV3, 3-EV5

- Adaptive Frequency Hopping (AFH)

Transmit Power

- Power Class 2 and Power Class 1.5 (above 4dBm)

- Programmable output power

- Power Class 1 compatible

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 37 -

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 38 -

HCI

- HCI H4 Transport Layer

- HCI proprietary commands (e.g. peripherals control)

- Single HCI command for patch/upgrade download

Supports Pitch-Period Error Concealment (PPEC)

Efficient and flexible support for WLAN coexistence in collocated scenario

Low power consumption

- Ultra low power architecture with 3 different low-power levels

- Deep Sleep modes, including Host power saving feature

- Dual Wake-up mechanism: initiated by the Host or by the Bluetooth device

Communication interfaces

- Fast UART up to 4Mbit/s

- SPI interface

- PCM interface

- Up to 10 additional flexibly programmable GPIOs

- External interrupts possible through the GPIOs

- Fast master I2C interface

Clock support

- System clock input (digital or sine wave) at9.6, 10, 13, 16, 16.8, 19.2, 26, 33.6 or 38.4MHz

- Low Power clock input at 32.768 kHz

ARM7TDMI CPU

Memory organization

- On chip RAM, including provision for patches

- On chip ROM, preloaded with SW up to HCI

Ciphering support up to 128 bits key

Single power supply with internal regulators for core voltage generation

Supports 1.65 to 2.85 Volts IO systems

Auto calibration (VCO, Filters)

Page 38: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 39 -

G. KF750 Bluetooth Schematic

• Clock

- Clock request

→ Connected to CLKREQ of Asta and Veronica, input to Gimly

- Fast clock : 26MHz

→ Supplied MCLK from Gimly

→ Frequency deviation : ± 20ppm

- Low power clock : 32.768kHz

→ Supplied RTCCLK from Veronica

• Power

- Supplied 2.75V, 1.8V from internal regulators of Veronica

• Reset

- RESOUT2_n signal of Asta controls STLC2593C reset.

• SPI

- Connected to SPI of Asta

- HCI interface between Asta and STLC2593C

• PCM

- Audio signal interface between Asta/Veronica and STLC2593C

• ANT

- 2.4GHz, 50 ohm matching

)oidaR MF+( htooteulB

EGNAHC TON OD

8V1_EDDV

108PT

FR_TB_SSV

IND108C

408C

118PT

u1.0

FR_TB_SSV

C81

0

1C3407-TB054212AED008LF5

1PB

4CD_PB2PB

2

3G

16

G2

1PB_U

0.1u

808C

C80

31n

H

u1.0

908PT

208CHn9.3

208TUO

8V1_EDDV

FR_TB_SSV

008CIND

9EKLCS_MF

OIDS_MF8D

BNES_MF9D

4AAV_MFDV_MF

3B

OIV_MF6D

4D1CN2CN

7F8F

3CN4CN

4L

5CN5L6L

6CN

1DNG_MF3A4B

2DNG_MF3DNG_MF

6B7B

4DNG_MF4C

5DNG_MF6C

6DNG_MF7C

7DNG_MF8DNG_MF

5D

1OIPG_MF7A6A

2OIPG_MF3OIPG_MF

5A

TUOL_MF5B

KLCR_MF7D

8CDNGFR_MF

5CTUOR_MF

9CBTSR_MF

2F5ANASSV_TB6ANASSV_TB

3F4F

7ANASSV_TB8ANASSV_TB

1G3G

9ANASSV_TB

6H1GIDSSV_TB

7H2GIDSSV_TB3GIDSSV_TB

8H8K

4GIDSSV_TB8L

5GIDSSV_TB

1FRSSV_TB1H1L

2FRSSV_TB3FRSSV_TB

2J2K

4FRSSV_TB

PUEKAW_TB9L

8BPIMF_MF

6JSTR_TRAU_TB

DXR_TRAU_TB9H

7GDXT_TRAU_TB

DLC_DDV_TB6E

6MA_OIV_TBB_OIV_TB

9J

C_OIV_TB3N5N

D_OIV_TBE_OIV_TB

8G

1ANASSV_TB1D

01ANASSV_TB4G3H

11ANASSV_TB4H

21ANASSV_TB

2D2ANASSV_TB3ANASSV_TB

3E

4ANASSV_TB1F

4MKLC_MCP_TB

4NCNYS_MCP_TB

NI_KLC_FER_TB6F

LRTC_GER_TB4J

7KNTESER_TB

1JNFR_TBPFR_TB

1K

1LC_RVSR_TB2B3C

2LC_RVSR_TB8M

D_RVSR_TBMSD_RVSR_TB

1C2C

N_RVSR_TBFR_RVSR_TB

2M

1TSET_TB2H2G

2TSET_TB

STC_TRAU_TB6K

9G0_OIPG_TB

4K01_OIPG_TB

3K11_OIPG_TB

61_OIPG_TB3J3L

8_OIPG_TB

9_OIPG_TB3M

PUEKAW_TSOH_TB8E

1AVH_TB2L3D

2AVH_TB3AVH_TB

1E2E

4AVH_TB4E

5AVH_TBDVH_TB

7N

KLC_PL_TB9K

A_MCP_TB5K5M

B_MCP_TB

108U

GRP_FA_TB6G

1_NI_QER_KLC_TB7E9F

2_NI_QER_KLC_TB

7J1_TUO_QER_KLC_TB

8J2_TUO_QER_KLC_TB

1_GIFNOC_TB7L

2_GIFNOC_TB7M6N

3_GIFNOC_TB

C81

422

n

3952CLTS

u1

018PT

R80

8

100K

218C

218PT

8V1_EDDV

57V2_KDDV

TABV

008LHn3.3

R80

70

C81

712

0p

57V2_KDDV

10p

108L

C81

6

p2.1

8V1_EDDV

8V1_EDDV

22n

C81

5

C80

90.

1u

008BF06

u1.0318C

FR_TB_SSV

ANA_TB_SSV

u1118C

ANA_TB_SSV

418PT

308R

0

308TUO

108TUO

PL_MFPR_MF

2OIPG_MF_61PG_CCA

1TAD_IPS_TB_52PG_CCA

KLC_IPS_TB_62PG_CCA

n0SC_IPS_TB_32PG_CCA0TAD_IPS_TB_42PG_CCA

n_1TUOSER

LCS_C2I_PPA

ADS_C2I_PPA

KLC_TB

TNA_MF

n_QERKLC_TB

TNI_IPS_TB_41PG_CCA

KLCCTR

DLD_MCP_CCADLU_MCP_CCA

KLC_MCP_CCACNYS_MCP_CCA

n_2TUOSER

KLCCTR

Figure 3-1-11. Schematic of STLC2593C

Page 39: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 40 -

3.1.11 MicroSD Interface card

KF750 supports the MicroSD card interface as external memory card.

MicroSD card has 4-data line, so KF750 uses 4-data line.

All control and data line is connected to Asta.

Cause of the difference between Asta and MicroSD card, a level shifter should be added.

• Card detection

- When there are no card in MicroSD card socket, REAL_MICROSD_DAT3 pin is high cause of an

internal pull-up.

- If Card is inserted in socket, The pull up can be disconnected by using SET_CLR_DETECT

command.

- VDDG_2V75 always supply power.

R91

610

0K

8V1_EDDV

309Cu1.0

57V2_GDDV

R90

7

470K

2 4 6 8

1 3 5 7

DN

I

R94

1

RA

1

100K

5 7

2 4 6 8

1 3

RA

2

100K

2CBDMC

RID_DMC5B

2BB0TADA0TAD

2DRID_0TAD

5C

RID_321TAD1C

A1TAD1D2A

B1TAD4B

B2TADA2TAD4C

4AA3TAD

4DB3TAD

1DNG3B

2DNG3C

5AACCV

5DBCCV

RYXZE604ACVA47NS009U

3AAKLC

3DBKLC

F_KLC1A

ADMC1B

109Cu1.0

DMC_DSORCIM

0TAD_DSORCIM

1TAD_DSORCIM2TAD_DSORCIM

0TAD_DSORCIM_LAER

1TAD_DSORCIM_LAER2TAD_DSORCIM_LAER

DMC_DSORCIM_LAER

3TAD_DSORCIM_LAER

KLC_DSORCIM

3TAD_DSORCIM

KLC_DSORCIM_LAER

TERKLC_CM_31PG_PPA

RID_DMC_DSORCIM

RID_TAD_DSORCIM

Figure 3-1-12. MicroSD card and Schematic of MicroSD card Interface

MicroSD card Interface

MICROSD_CMD Command/Response

MICROSD_CLK Clock

MICROSD_DAT Data line

VDDG_2V75 Supply voltage from Veronica internal LDO

Table 3-1-7. MicroSD card Interface

Page 40: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 41 -

3.1.1 Power On Sequence

User presses END key and then ONSWAn signal is changed to Low.

Veronica initiates the internal oscillator and powers on the regulators.

Veronica generates a power for Asta.

Veronica releases the power reset signal(PWRRSTn) and generates an interrupt(IRQ0n) to Asta.

Asta

RESPOW_N

IRQ0_N

Veronica

PWRRST

IRQ

ONSWA

Power for Asta

PWRRSTn

IRQ0nONSWAn

Press END key

Figure 3-1-13. Power On Sequence

Page 41: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 42 -

3.1.13 KeyPad, Touch button and Touch screen

There are 21 buttons and 5 side keys and touch button in Figure 2-1-13/14. Shows the Keypad circuit.

‘END’ Key is connected ONSWAn for Veronica.

When Touch button and Touch screen is touched, Interrupt is given to Asta than, she read the status

register what button is touched by I2C. I2C is realize by Asta GPIO.

8

5TOH

4 5

7

YEK_REBMUN

6

3

0

2

4TOH

9

1

401 501

011

601

301201

701

201TOH101TOH

2 4 6 8

1 3 5 7 K01

101AR

101

801 901

8V1_EDDV

2NIYEK

0NIYEK

1NIYEK

1TUOYEK

3TUOYEK

2TUOYEK

4TUOYEK

3NIYEK

8V1_EDDV

RLC

009RK01

109RK01

009D

03-S125BR

KODNES

n_AWSNO

5NIYEK

4NIYEK

2TUOYEK

1TUOYEK

YEK WS_NO

DNE

009AV

RF053X4150SVCI

n_AWSNO307NC

1234

0TUOYEK

1NIYEK0NIYEK

23

4

1011WS

1

EMOH

ITLUM

3NIYEK

2TUOYEK

3TUOYEK

3NIYEK

1TUOYEK

4TUOYEK

Figure 3-1-14. KEY CIRCUIT

Table 3-1-8. Key Matrix Mapping Table

KEYIN0 KEYIN1 KEYIN2 KEYIN3 KEYIN4 KEYIN5

KEYOUT0 VOLUME1 VOLUME2

KEYOUT1 1 2 3 MULTI SEND OK

KEYOUT2 4 5 6 CAMAF CLR

KEYOUT3 7 8 9 CAMSHOT

KEYOUT4 * 0 # HOME

Page 42: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 43 -

V1.3_HCUOT

R90

6

4.7K

4.7K

R90

7

6

87

9

6151

8171

1

01

11

21

31

41

2

3

4

5

109NC

DN

I

R90

5

TNI_NEERCS_HCUOT

LCS_NEERCS_HCUOT

ADS_NEERCS_HCUOT

Figure 3-1-15. Touch button and Touch screen connector

I2C interface

Page 43: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 44 -

3.1.14 Multi EL lighting

There are 13 EL lighting channel. Each lighting channel is operated independently. EL

controller(U901) control AC generator and EL driver(U900). AC generator generate 190V AC signal.

And this 190V AC signal is switched by EL driver. Through EL driver, AC signal of the each lighting

channel is switched independently. Finally, switched AC signal illuminate EL sheet.

ISSP

I2C

D5

G

S1 S2

R91

556

K

Q900SIA450DJ

D1 D2 D3 D4

R90

9

0

TP902

TP905

HVOUT7

5HVOUT8

4HVOUT9

NC113

NC216

NC31823

NC4

25NC5

33SLUG

VBIAS26

VDD20

14VPP

22_LE

21_POL

24

GND15

HVGND27

HVOUT112

3HVOUT10HVOUT11

2HVOUT12

132

HVOUT13

31HVOUT14

30HVOUT15

29HVOUT16

HVOUT21110

HVOUT3

9HVOUT4HVOUT5

8HVOUT6

76

HV509U900

BP28

19CLK

DIN17

DOUT

2.2uC902

470pFC903

VREG_6.1V

TP906TP907

R91

3

100K

10M

R91

0

P2_422

P2_53

23P2_6

2P2_7

P3_018

P3_17

19P3_2

6P3_3

28V

DD

32V

SS

1

12V

SS

2

17XREX

26P

0_4

30P

0_5

P0_

627

P0_

729

P1_

013

P1_

111 14

P1_

2

10P

1_3

P1_

415

P1_

59 16

P1_

6

8P1_7

P2_020

P2_15

21P2_2

4P2_3

U901CY8C21434

33G

ND

P0_024

P0_11

P0_

225

P0_

331

0.1u

TP903

TOUCH_3.1V

C906

0.1uC907

RF051VA2S

D901

0.1u

C90

4

100K

R912150pC905

100uHL900

TOUCH_3.1V

HV_OUT_5HV_OUT_6HV_OUT_7HV_OUT_8HV_OUT_9

HV_OUT_13HV_OUT_14

BP

HV_OUT_2HV_OUT_3HV_OUT_4

TOUCH_SCREEN_SDATOUCH_SCREEN_SCL

HV_OUT_10HV_OUT_11HV_OUT_12

TOUCH_RST

TOUCH_BUTTON_SDATOUCH_BUTTON_SCL

Figure 3-1-16. Multi EL lighting

EL controller AC generator EL driver EL lighing channeloutput (connected withEL sheet)

Page 44: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 45 -

3.2 GAM Hardware Subsystem

3.2.1 General Description

The Graphics Accelerator Module (GAM) subsystem provides hardware support in the creation of

visual imagery and the transfer of this data to the display. GAM also provides support for the camera

module. The visual data could be graphics, still images or video. The GAM subsystem consists of five

modules:

• GRAM : graphics memory (160 kB).

• GAMCON : GAM controller.

• GRAPHCON : graphics controller.

• PDI/SSI : programmable display interface for parallel/serial displays.

• CDI : camera data interface.

Figure 3-2-1. GAM Subsystem Functional Block Diagram

Page 45: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 46 -

3.2.2 Block Description

A. GAM Controller(GAMCON)

The GAM Controller (GAMCON) is responsible for clock gating and distribution within the GAM

module. GAMCON receives the HCLK from SYSCON and distributes to GRAPHCON, GRAM, PDI and

CDI. GAMCON also distributes the GAM reset signal to GRAPHCON, GRAM, PDI and CDI.

The reset signals CIRES_N and PDIRES_N are distributed from GAMCON to the camera and display

module respectively, see Figure 2.28. The CIPCLK is used to clock the received data into the camera

data interface. The CIPCLK can be in the range of 100 kHz to 16 MHz.

B. Graphics RAM (GRAM) Block

GAM includes 160 kB of graphics memory (GRAM) in order to support display screen sizes of QCIF +

alfa display size and three frame buffers when decoding QCIF video.

The GRAM can be accessed in 8, 16 or 32-bit mode. Write access takes a single AHB clock cycle.

Non-sequential read and the first access of a sequential read access takes two AHB clock cycles.

Subsequent sequential read access take a single AHB clock cycle.

The GRAM contains both frame buffer and temporary data. There are three image areas with one

used for normal MMI graphics and the other two areas used for still images, video frames or camera

frames. The three image areas can be combined into one frame buffer.

GRAM is required to transfer a VGA (640 by 480 pixels) image from the camera data interface (CDI)

over DMA at 100 MBit/s, within a 50 ms timeframe. The GRAM is used as a buffer, but the average

transfer bandwidth required is approximately 3 Mword/s (32-bit word), that is 12 MByte/s.

C. Graphics Controller (GRAPHCON) Block

GRAPHCON is controlled by the application CPU and can perform operations on pixels and image

areas. Images can be moved and merged with other images and text.

The GRAPHCON block receives graphical objects from GRAM and performers the appropriate

graphical manipulation. The resulting data is transfers to the display interface (PDI).

GRAPHCON can receive images from the camera data interface (CDI) and send them to the PDI

automatically.

GRAPHCON performs conversion from YUV to RGB and can scale (zoom) still or video images.

D. Programmable Display Interface (PDI) Block

The programmable display interface (PDI) is designed to interface both parallel and serial display

modules. The display data is transferred from the 32 word FIFO on GAMCON to the display module

via the PDI block. The PDI block is built around a micro controller and executes 16-bit instruction

words to individually control the I/O ports. It has a 128 byte program memory, programmable by the

CPU, which can store up to 64 instructions.

Page 46: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 47 -

The CPU transfers all set-up and control data to the display. Data is transferred to PDI as 32- bit

words, which in turn writes 8-bit data to the display. The programmable PDI block is configured at the

software build stage, to support either parallel interface such as PPI or serial interface such as SSI or

I2C.

E. Camera Data Interface (CDI) Block

The camera data interface (CDI) block is designed to support a range of still image camera modules.

An 8-bit parallel bus supports data transfer from the camera module to the CDI.

The pixel clock is an output clock from the camera module to the CDI and qualifies the data on the

parallel bus. One byte of data is captured on each rising edge of the pixel clock. CDI allows the pixel

clock to be in the range of 100 kHz to 16 MHz.

The horizontal synchronization line is an input from the camera module and defines one scanline of

image data. The horizontal synchronization line can be programmed to be active high or low. The

vertical synchronization line is an input from the camera module and defines one image frame (image

height) of data. The vertical synchronization line can be programmed to be active high or low.

The frame rate can be adjusted by skipping frames and various interrupts are used to inform the

application CPU regarding the progress of incoming images and potential errors. The normal data

format on the data bus is YUV 4:2:2 (raw binary image data) according to the CCIR-656 standard. A

function within the CDI can be programmed to reorder the YUV parameters as they pass through the

CDI. In addition, the CDI is able to detect the end of an image and perform some truncation as well as

overflow conditions. There is nothing preventing the use of other data types such as JPEG or RGB (as

long as the timing is followed), but only YUV data can be sent to the display.

Camera images can also be sent to a DMA channel to store the image in external memory.

The I2C interface and GPIO are part of the interface to the camera module, but they are not part of the

CDI block. The I2C is used to set-up and control the camera module.

The camera module I2C lines must go high impedance when the supply is removed from the camera.

The I2C commands needed to control the camera, as well as the functional behavior of the module,

are also different for each implementation.

The ON-signal (GPIO) is used to power-on the camera from Standby or Off mode (implementation

dependent). This signal must be held low when the mobile equipment is powered down and during the

mobile equipment reset period. The GPIO pin can also be an input or high impedance during mobile

equipment reset and start. In this case, it must have pull-down to ground.

The camera module reset signal is an output to the camera module.

Page 47: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 48 -

3.2.3 Camera & Camera InterfaceF

19

CI_

D1

G21

F21

CI_

D2

CI_

D3

G20

CI_

D4

H21

G19

CI_

D5

CI_

D6

G22

CI_

D7

H22

F18

CI_

HS

YN

C

CI_

PC

LKF

20E

20C

I_R

ES

_N

E19

CI_

VS

YN

C

CI_

D0

CI_

D4

CI_

D5

CI_

D6

CI_

D7

CI_

PC

LKC

I_V

SY

NC

CI_

HS

YN

C

CI_

D0

CI_

RE

S_n

CI_

D1

CI_

D2

CI_

D3

21PKLCMVKLCPV

01P

21KSVV

ADIV8P

BDIV8N

CDIV9P

01MDDIVEDIV

01N

FDIV9N11N

GDIV11P

HDIVIDIV

21N

JDIV7N8L

KDIVLDIV

31P

MDIV9L

31NNDIV

11MODIVPDIV

9M

FERHV21M

]8[ATAD_MAC_PMM

KLCP_MAC_PMM

]6[ATAD_MAC_PMM

]4[ATAD_MAC_PMM

]2[ATAD_MAC_PMM

]11[ATAD_MAC_PMM]01[ATAD_MAC_PMM

CNYSH_MAC_PMMCNYSV_MAC_PMM

]9[ATAD_MAC_PMM

]7[ATAD_MAC_PMM

]5[ATAD_MAC_PMM

]3[ATAD_MAC_PMM

KLCM_MAC_PMM

]0[ATAD_MAC_PMM]1[ATAD_MAC_PMM

Figure 3-2-2. Camera Interface (DB3150 and Zoran)

ECAFRETNI AREMAC M5

hgiH evitcA

01507R

3060

C71

1

3060p01

FB

7001B_TUONI

9

82B_TUONI

3B_TUONI7

64B_TUONI

RF001R070E48101EVCI

5G

110

G2

11A_TUONI

2A_TUONI2

33A_TUONI

44A_TUONI

CA

M_V

DD

_1.8

V

007LF

607CIND

VA

700

ICV

L051

8100

Y50

0FR

p01

C70

8

3060

VA

701

306001707R

ICV

L051

8100

Y50

0FR

01607R3060

3060

01407R

3060

C70

9

p01

G1

5

G2

10

1A_TUONI1

22A_TUONI

33A_TUONI

4A_TUONI4

91B_TUONI

2B_TUONI8

73B_TUONI

4B_TUONI6

u1.0207C

207LFRF001R070E48101EVCI

V8.2_FA_DDV_MAC

3060

33207R

IND507C

VA

702

ICV

L051

8100

Y50

0FR

407C

3

0313233343

456789

3060u1.0

5161

817191

2

02122232425262728292

107NC1

0111213141

u1307C 007C

u01

707Cu1.0

CA

M_A

VD

D_2

.8V

3060

01307R

3A_TUONI

4A_TUONI4

91B_TUONI

82B_TUONI

3B_TUONI7

64B_TUONI

RF001R070E48101EVCI107LF

G1

510G

2

11A_TUONI

2A_TUONI2

3

u1.03060

107C

p01 3060

C71

0

CNYSH_MAC_PMMCNYSV_MAC_PMM

ADS_C2I_PMM

KLCM_MAC_PMM

]0[ATAD_MAC_M5]1[ATAD_MAC_M5]2[ATAD_MAC_M5]3[ATAD_MAC_M5

]4[ATAD_MAC_M5]5[ATAD_MAC_M5]6[ATAD_MAC_M5]7[ATAD_MAC_M5

]9[ATAD_MAC_PMM]8[ATAD_MAC_PMM

]0[ATAD_MAC_PMM]1[ATAD_MAC_PMM]2[ATAD_MAC_PMM]3[ATAD_MAC_PMM

]4[ATAD_MAC_PMM]5[ATAD_MAC_PMM]6[ATAD_MAC_PMM]7[ATAD_MAC_PMM

KLCP_MAC_PMM

]8[ATAD_MAC_M5

]1[ATAD_MAC_M5

]3[ATAD_MAC_M5

]5[ATAD_MAC_M5

]7[ATAD_MAC_M5

]0[ATAD_MAC_M5

]2[ATAD_MAC_M5

]4[ATAD_MAC_M5

]6[ATAD_MAC_M5

]11[ATAD_MAC_PMM]01[ATAD_MAC_PMM

]11[ATAD_MAC_M5]01[ATAD_MAC_M5

LCS_C2I_PMM

]9[ATAD_MAC_M5]8[ATAD_MAC_M5

NDWP_MAC_PMM

N_TESER_MAC_PMM

]11[ATAD_MAC_M5]01[ATAD_MAC_M5]9[ATAD_MAC_M5

Figure 3-2-3. 5M Camera Connector(34Pin - Main Board)

VGA Camera 5 Mega Camera

Page 48: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 49 -

1059100YBNE

G741027KXA

6001C

u1.0

u1.0

201C

4G3G

V8.2_DDV_AGV

5161718191202

3456789

2G1G 401NC1

1101213141

301Cu1.0

2D_IC

5D_IC

V8.1_DDV_AGV

CNYSH_IC

n_SER_IC

CNYSV_IC

6D_IC7D_IC

ADS_C2I_PPALCS_C2I_PPA

3D_IC

1D_IC

4D_IC

FFO_OI_CV_12PG_CCA0KLCSYS

KLCP_IC0D_IC

Figure 3-2-5. VGA LCD FPCB Connector

Page 49: LG KF750 KF755c Secret Service Manual

The 5M Camera modules are connected to 34-pin main board and VGA Camera module is connected

to LCD FPCB with 20-pin Board to Board through 70 pin Board to Board connector.

VGA interface is dedicated camera interface port in DB3150, but 5 Mega camera is connected to

MMIC (Multi-media IC).

5 mega camera supply 24MHz master clock to camera module and receive 80MHz pixel clock(30fps),

vertical sync signal, horizontal sync signal, reset signal and 8bits YUV data from camera module. The

camera module is controlled by I2C port.

VGA camera port supply 24MHz master clock to camera module and receive 32.2MHz pixel

clock(15fps), vertical sync signal, horizontal sync signal, reset signal and 8bits YUV data from camera

module. The camera module is controlled by I2C port.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 50 -

Pin Symbol Symbol Pin

1 MMP_CAM_MCLK CAM_AVDD_2.8V 34

2 GND GND 33

3 MMP_CAM_PCLK CAM_VDD_1.8V 32

4 GND CAM_VDD_1.8V 31

5 5M_CAM_DATA[0] GND 30

6 5M_CAM_DATA[1] MMP_CAM_RESET_N 29

7 5M_CAM_DATA[2] GND 28

8 5M_CAM_DATA[3] MMP_I2C_SDA 27

9 5M_CAM_DATA[4] MMP_I2C_SCL 26

10 5M_CAM_DATA[5] GND 25

11 5M_CAM_DATA[6] MMP_CAM_VSYNC 24

12 5M_CAM_DATA[7] MMP_CAM_HSYNC 23

13 5M_CAM_DATA[8] GND 22

14 5M_CAM_DATA[9] MMP_CAM_PWDN 21

15 5M_CAM_DATA[10] GND 20

16 5M_CAM_DATA[11] CAM_VDD_AF_2.8V 19

17 GND GND 1 8

Table 3-2-1. Interface between Main board and 5M camera

Page 50: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 51 -

Pin Symbol Symbol Pin

1 ACC_GP21_VC_IO_OFF VGA_VDD_2.8V 20

2 SYSCLK0 VGA_VDD_1.8V 19

3 GND CI_RES_n 18

4 CI_PCLK APP_I2C_SCL 17

5 CI_D0 APP_I2C_SDA 16

6 CI_D1 VGA_VDD_1.8V 15

7 CI_D2 CI_HSYNC 14

8 CI_D3 CI_VSYNC 13

9 CI_D4 CI_D7 12

10 CI_D5 CI_D6 11

Table 3-2-2. Interface between VGA Camera Module

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 52 -

3.2.4 Camera Regulator

MMP_CAM_PWR_EN enables 1.8V & 2.8V Camera Regulator for 5M Camera.

(2.8V for analog and AF, 1.8V for I/O, 1.5V for digital)

SUB PMIC gives power to VGA camera.

It controlled by I2C (VGA : 2.8V for analog, 1.8V for I/O, digital)

REWOP AREMAC M5

1uC

724

NIV1

1TUOV87

2TUOV

WQPGM-1109TR

21NE2NE

35

DNG1CN4

2CN6

PG

ND

9

307U

6EC

1DNG2

2DNG5

CN4

1TUOVDDV

3

TABV

F-RT-D182D4111R207U

C72

21u

V8.1_DDV_MACV8.2_FA_DDV_MAC V8.2_DDVA_MAC

1uC

723

TABV

C72

1

1u 1u

NE_RWP_MAC_PMM

C72

0

NE_RWP_MAC_PMM

Figure 3-2-6. 1.8V and 2.8V Camera Regulator

R93

0

0

03-SC125BR 539R0

129C

u1

u1029C

239R0V8.2_DDV_AGV0

439R03-SC125BR

u2.2519C

819C

DN

I

R94

2

u1

u1719C

229C

u1

V8.1_DDV_AGV519PT

339R0

919C

TABV

u1.0

139R0

8V1_EDDV

C91

610

u

SAIBS5F

5DLCS

4DADS

5EDNGS

SNESS3F

A1

T1

A6

T2

T3

F6

F1

T4

4F1TABV

PCTABV5B

ODLTABV1E

6EOIV

4BTUOV

NIMWPW1D

N3C4A

P3C5A

3ADNGPC

TNCHSALF3D

1CG4E3E

2CG

O1ODL2F

O2ODL2E

2D1DEL

2C2DEL3DEL

1C

4DEL1B

5DEL2B2A

LFDEL

3BDNGDEL

BTESER4C

LUG5906DB

309UN1C

6D5C

P1C

6CN2CP2C

6B

BTESER_MP_BUS

2DELW3DELW4DELW5DELW

SNES

MWP_DCL

LCS_MP_BUSADS_MP_BUS

1NIAG

SAIBS

1DELW

2NIAG

RWP_DELW

Figure 3-2-7. VGA Camera LDO in SUB PMIC

VGA Camera POWER

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LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 53 -

3.2.5 Display & LCD FPC Interface

LCD module include device in table 3-2

LCD Module is connected to multi Key PCB with 37-pin Connector in sub PCB.

The LCD is controlled by 8-bit PDI(Parallel Data Interface) in DB3150.

ODL DCL

109Cu1.0

ICV

N05

05X

150F

RV

A90

5

K15409R

4.7K

R90

2

0.1u

C90

8

009Cu1.0

6373

45

67

89

1222

3242

5262

7282

92

3

0313

2333

4353

1

0111

2131

4151

6171

8191

2

02

009NC

VA

906

ICV

N05

05X

150F

R

8V1_EDDV

V6.2_DCL_DDV

DI_DCL_21PG_PPA

TUO_N_TESER_DCL

TUO_]1[ATAD_DCLTUO_]0[ATAD_DCL

5DELW4DELW3DELW2DELW1DELWRWP_DELW

CNYSV_DCLN_DR_DCLTUO_N_EW_DCLTUO_N_SDA_DCLTUO_N_SC_DCL

TUO_]7[ATAD_DCL

MWP_DCL

TUO_]6[ATAD_DCLTUO_]5[ATAD_DCLTUO_]4[ATAD_DCLTUO_]3[ATAD_DCLTUO_]2[ATAD_DCL

Table 3-2-4. LCD module Connector

Table 3-2-3. Device in LCD Module

Type Device

Main LCD 240 x RGB x 320 262K Color TFT LCD

Main LCD Backlight 5 White LEDs

Page 53: LG KF750 KF755c Secret Service Manual

3.2.6 LCD Module Block diagram

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 54 -

Figure 3-2-9. LCD Module Block diagram

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LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 55 -

3.2.7 LCD Backlight Illumination

There are 5 white LEDs in LCD Backlight circuit which is driven SUB PMIC(BD6095).I2C is used for

Backlight brightness control.

3.2.8 Keypad Illumination

There are 2 WHITE LEDs in Main board backlight circuit, which are driven by LEDC port in ABB

(Veronica) and light guide is used for luminance Uniformity

THGILKCAB DCL

R93

0

0

03-SC125BR 539R0

129C

u1

u1029C

239R0V8.2_DDV_AGV0

439R03-SC125BR

u2.2519C

819C

DN

I

R94

2

u1

u1719C

229C

u1

V8.1_DDV_AGV519PT

339R0

919C

TABV

u1.0

139R0

8V1_EDDV

C91

610

u

SAIBS5F

5DLCS

4DADS

5EDNGS

SNESS3F

A1

T1

A6

T2

T3

F6

F1

T4

4F1TABV

PCTABV5B

ODLTABV1E

6EOIV

4BTUOV

NIMWPW1D

N3C4A

P3C5A

3ADNGPC

TNCHSALF3D

1CG4E3E

2CG

O1ODL2F

O2ODL2E

2D1DEL

2C2DEL3DEL

1C

4DEL1B

5DEL2B2A

LFDEL

3BDNGDEL

BTESER4C

LUG5906DB

309UN1C

6D5C

P1C

6CN2CP2C

6B

BTESER_MP_BUS

2DELW3DELW4DELW5DELW

SNES

MWP_DCL

LCS_MP_BUSADS_MP_BUS

1NIAG

SAIBS

1DELW

2NIAG

RWP_DELW

Figure 3-2-10. SUB PMIC Circuit LCD Backlight

201R

mho001

VB

AT

mho001

101R

RS

B6.

8CS

T2R

ZD

101

ZD

102

RS

B6.

8CS

T2R

1

A

2

C

101DL

7001STWS-CSS

1

A

2

C

7001STWS-CSS

201DL2DEL_YEK

1DEL_YEK

Figure 3-2-11. Keypad Backlight LED Interface and Backlight Circuit

Page 55: LG KF750 KF755c Secret Service Manual

3.2.9 Three-axis-accelerometer

The SMB380 is a triaxial low-g acceleration sensor IC with digital output for motion applications. It

allows measurements of acceleration in perpendicular axes as well as absolute temperature

measurement. If Motion is detected, then interrupt is issued to CPU and CPU read its motion value by

I2C(SMB_SDA,SMB_SCL) interface.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 56 -

R91

2

390

DNG34

TNI

1CN011

2CN

11N

OT

1N

OT

212

KCS6

8IDS

7ODS

2OIDDVDDV

9

051AMB109U

BSC5

57V2_BMS_HDDV

n22509C

0

R91

1

DN

I

R91

0

R90

9D

NI

409Cu1.0

8V1_EDDV

ADS_BMSTNI_SIXA3_70PG_PPA

LCS_BMS

Page 56: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 57 -

3.3 Audio Part

3.3.1 Audio Part Block Diagram

3.3.2 Audio Signal Processing & Interface

Audio signal processing is divided Uplink path and downlink path.

The uplink path amplifies the audio signal from MIC and converts this analog signal to digital signal

and then transmit it to DBB Chip (Asta).

This transmitted signal is reformed to fit in GSM & WCDMA Frame format and delivered to RF Chip.

The downlink path amplifies the signal from DBB chip (Asta) and outputs it to Receiver (or Speaker).

The audio interface consists of PCM encoding and decoding circuitry, microphone amplifiers and

earphone drivers.

The PCM encoder and decoder blocks are two-channel, 16-bit circuits with programmable gain

amplifiers (PGA).

The decoder has a receive volume control. The audio inputs and outputs can be switched to normal or

auxiliary ports.

Figure 3-3-1. Audio Part Block Diagram

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 58 -

Figure 3-3-2. Audio Interface Detailed Diagram(Veronica)

saiV elpitluM esU

enalP dnuorG lacoL

.pmA rekaepS

BA ot esolC

%1

%1

%1

V01

%1

%1

%1

n74135C

51915R

SSAPYB1C

DNG2B

2C+NI

3C-NI

3ADDV

+OV3B

-OV1A1B

NWODTUHS_

RVQZ1A5026APT005U

415Cu01

3060u1.0815C

u1325C

220n

C53

6

u1.0515C

3060

0

705R

3060

3060

205PT

K01125R

K93715R

47K

R52

5

3060

n74425C

505PT405PT305PT

u1225C

805PT

905PT

22p

C53

0

5A2

20B2

31B2

DNG4

1S7

2S6

CCV9

XMUT8622ASF105U

A1801

0B1

11B1

n01535C

3060

025Cu1

615Cu01

TABV

51815R22p

C52

7

TABV

R52

210

0K

3060

C52

822

p

22p

C52

9

u2.2525C

3060 K01025R

K93425R

n74235C

TSOOB_V3B

1SW3D

2SW3C

TSOOBSSV

KCUBSSV1B

5E

2ODS

KLCMIS5H

TADMIS2H

N_TSRMIS2J

CCVMIS1F

NRKPS3M2M

PRKPS

4ATSOOBWS

RDIM

SAIBP1D

1KCS4D

4E2KCS

1IDS2C

2D2IDS

1ODS1C

4F

01L1NIENIL

01K2NIENIL

N1CIM8J8K

P1CIM

N2CIM9M

P2CIM8L

N3CIM8H

01MP3CIM

9LN4CIM

9KP4CIM

5L

3CED5J4J

4CED

6K

2OXUA6M

6JNRAEBPRAEB

4M

5D+BF_TSOOB

5B+ESNESI_TSOOB

5C-ESNESI_TSOOB

4C1WS_TSOOB

4B2WS_TSOOB

3A3WS_TSOOB

7M1OCC2OCC

7K

1OXUA

D50

2

RB

521S

-30

R_RAEL_RAE

P1CIMN1CIM

CCVMIS

N2CIMP2CIM

NRAEB

NE_WS_PMA_72PG_CCA

NE_PMA_KPS_31PG_CCA

PRKPS

NRKPS

RDIM

SW_0S2I

SW_1S2I

+VCR_KPS

-VCR_KPS

PRAEB

DLU_1S2I

DLD_0S2I

DLD_1S2I

KLCMIS

TADMIS

n_TSRMIS

NRKPSPRKPS

PR_MF

PL_MF

KLC_0S2I

KLC_1S2I

DLU_0S2I

NRAEBPRAEB

1OCC2OCC

Figure 3-3-3 . Audio Section scheme

%1

%1

PU

LL-U

P R

EM

OV

ED

200

7.10

.01

306BF

IND

888R

u1.0016C

3060

006BF

K2.2

818R

u1u2.2918C

818CEC6

21DNG

52DNG

4CN

DDV31

TUOV

u1.0

D181D4111R308U

3060

906C

106BF

74618R

506BF

074016R

406BF

074216R

74718Ru001416C

K74

706R

806C

3060n01

21CN

33CN2CN

67

4CN1TUO

8

52TUO

PG

ND

9

NM4112FUN106LF

1NI1

2NI4

u001316C

2OCC

P2CIM

KOOH

RDIM

TUO_VT

L_RAE

R_RAE

N2CIM

Page 58: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 59 -

3.3.3 Audio Mode

Audio Mode includes three states.( Voice call, Midi.MP3).

Each states is sorted by the total 7 Modes according to external Devices (Receiver,Loud

Speaker,Headset).

Video Telephony Mode Operate on state of the WCDMA CALL.

Voice ca ll

MIDI

MP3

Receiver Mode

Loud Sp eaker Mode

Headset Mod e

Video Telephony Mode

Only Loud Speaker

Loud Speaker Mode

Headset Mode

ModeVeron ica In /Out Port

OUTIN

MIC1P/MIC1N BEARP/BEARN

SPKRP/SPKRN

AUXO1/AUXO2

AUXO1/AUXO2

MIC1P/MIC1N

MIC1P/MIC1N

MIC2P/MIC2N

SPKRP/SPKRN

SPKRP/SPKRN

SPKR/SPKN

Table 3-3-1. Audio Mode

Page 59: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3.3.4 Voice Call

A. Voice call Downlink Mode(Receiver, Speaker, Headset)

This section provides a detailed description of the Voice Call RX functions.

The voice decoder accepts a serial input stream of linear PCM coded speech. The receive bandpass

filter is the next step in the CODEC receive path. Following the filter is the DAC, followed by a PGA

enabling to adjust or trim the circuit in the product for different sensitivity of the earphone and spread in

the RX path. The final step in the receive path is the auxiliary output. The auxiliary audio amplifier is

intended to drive low impedance headphones. The earphone amplifier and the auxiliary audio outputs

can be powered down (muted) via I2C. Both the earphone driver and one of the auxiliary drivers can

simultaneously provide an output signal during voice decoding.

• Receiver Mode : BEARP/N Port → Receiver(32Ω)

• Loud Speaker / Video Telephony Mode : Veronica SPK Amp → SPKR/N → AUDIO AMP(TPA6205)

→ Speaker(8Ω)

• Headset Mode : Auxiliary audio amplifier → AUXO1/2 → AUDIO AMP(TPA4411) → Head Phone

3. TECHNICAL BRIEF

- 60 -

Figure 3-3-4. Voice call Downlink Scheme

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3. TECHNICAL BRIEF

- 61 -

B. Voice Call Uplink Mode (Receiver,Speaker,Headset)

This section provides a detailed description of the Voice Call TX functions.

From the audio path view point, voice call has the same structure as video telephony. The TXMIX

connection enables insertion of audio into the uplink audio path. This can, for example, be used to play

dictation recordings for the listener at the other party, in a voice call or video telephony call. The

connection to TXMIX from the Audio Mixer must be performed in 8 kHz mono, since this is supported

by the Voice mode. Due to performance reasons it may not be possible to decode every audio format

during video telephony.

Each Voice Uplink Mode paths shown below.

• Receiver Mode : C-MIC(SP0102BE3) → Veronica Input(MIC1N/1P)

• Loud Speaker Mode : C-MIC(SP0102BE3) → Veronica Input(MIC1N/1P)

• Video Telephony Mode : C-MIC(SP0102BE3) → Veronica Input(MIC1N/1P)

• Headset Mode : Headset MIC → Veronica Input(AUXI1N/1P)

When the headset is inserted, EAR_DETECT_n(Circuit Diagram net Name) converted into low state

So, the headset icon is displayed on Main LCD.

Figure 3-3-5. Voice call Uplink Scheme

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3.3.5 MIDI (Ring Tone Play)

This section provides a detailed description of the MIDI and WAV-file functions.

In Figure 2-4-6, External MIDI path is the same as Voice Loudspeaker downlink Mode, except source

in Asta (DSP and Audio Mixer).

MIDI : Asta → PCM Decoder → Auxiliary audio amplifier → SPKRP/N Port → AUDIO AMP(TPA6205)

→ Speaker(8Ω)

3. TECHNICAL BRIEF

- 62 -

Figure 3-3-6. External MIDI path

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3. TECHNICAL BRIEF

- 63 -

3.3.6 MP3 (Audio Player)

This section provides a detailed description of the MP3 file functions.

MP3 function supports PCM 44/48KHz sampling rate.The PCM44/48 RX-path is intended to be used

as a audio amp and one speaker.

Figure 3-3-7. MP3 Scheme

Page 63: LG KF750 KF755c Secret Service Manual

- 64 -

3. TECHNICAL BRIEF

3.3.7 Video Telephony

This section provides a description of the Video Telephony functions.

Video Telephony Mode has same paths with Loud Speaker Mode.

3.3.8 Audio Main Component

There are 4 components in KF750 schematic Diagram. Part Number marked on KF750 Schematic

Diagram.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 3-3-8. Video Telephony Scheme

I - soundSGEY0005527 Ear-Jack SET4

TITPA6205A/TPA4411Audio AMP3

SisonicSP0102BE3MIC2

BRS201417SL08-P Speaker/Receiver1

MAKERPART NUMBERITEMNO

Table 3-3-2. Audio Component List

Page 64: LG KF750 KF755c Secret Service Manual

- 65 -

3. TECHNICAL BRIEF

3.4 GPADC(General Purpose ADC) and AUTOADC2

The GPADC consists of a 14 input MUX and an 8-bit ADC. The analog input signal is selected with the

MUX and converted in the ADC.

The GPADC has a built in controller, AUTOADC2, which is able to operate in the background without

software intervention. The AUTOADC2 periodically measures the battery voltage or current. (Fig.3-4-

1) shows the schematic of GPADC part. The GPADC channel spec is as following (Table 3-4-1).

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Fig 3-4-1. Schematic of GPADC and AUTOADC2

Fig 3-4-2. GPADC and AUTOADC2 Block diagram

ADC 6 channels

Resource Name Description

GPA0 RTEMP Radio temperature sense

GPA2 VLOOP Loop voltage sense

GPA3 WPOWERSENSE Reference voltage for PAM

GPA4 WRFLOOP Lock inform

GPA6 GPA6 Headset detect

GPA7 VBACKUP Backup battery

Table 3-4-1. GPADC channel spec

Page 65: LG KF750 KF755c Secret Service Manual

- 66 -

3. TECHNICAL BRIEF

3.5 Charger control

A programmable charger in AB3000 is used for battery charging. It is possible to set limits for the

output voltage at CHSENSE- and the output current from DCIO via the sense resistor to CHSENSE-.

The voltage at CHSENSE- and the current feed to CHSENSE- cannot be measured directly by the

GPADC. Instead, the two measuring amplifiers translate these inputs to a voltage proportional to the

input and within the range of the GPADC. (Fig.3-5-1) shows the schematic of charging control part.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Name Type Unused Description

CHSENSE+ Analog VBAT Current sensing input positive

CHSENSE- Analog VBAT Current sensing input negative

W4/1

W4/1

DNG_TTAB

BA ot esolC

%12102

dnuorg enohPhtap nruter

riap laitnereffid a sa etuor3 niP ot esolC

Clo

se to

Pin

1

.nnoC yrettaB

2102%1

riap laitnereffid a sa etuor

915Cp74

0805R3060

1.0315R

TABV

p42315C

K74415R

0115R3060

105QJD119AIS

1D

2D

3D

4D

1G

2G

1S

2S

G1

G2

1 2 3

CN

500

0215R

905R

p42215C

520.0

300K

R50

6

33u

C51

7

21

005X

zHK867.23

D50

1

KD

S22

1E_R

TK

3A1_

C2

2

A2

C1 1

TABV

21K1LATX2LATX

11K

D_TABV1H

SUBV1J

01GN_FFOMIS

2KN_TSRS

KLCS3J3K

TADS

3F

21G+ESNESGF

11G-ESNESGF

ATADB4H

GERHC2E

1E+ESNESHC

2F-ESNESHC

OICD

21JZHK23

105PT

A_NICDNICD

n_TSRS

SUBV

KLCSTADS

KLCCTR

Fig. 3-5-1. Battery charging circuit Fig. 3-5-2. Battery charging block diagram

Table 3-5-1. Charger Control channel spec

Page 66: LG KF750 KF755c Secret Service Manual

- 67 -

3. TECHNICAL BRIEF

3.5.1 Fuel Gauge

AB3000 supports the measurement of the current consumption/charging current in the U8100 with a

fuel gauge block. By constantly integrating the current flowing into and out of the battery, the fuel

gauge block is used to determine the remaining battery capacity.

The function of the fuel gauge block is schematically described in (Fig.3-5-3). A sense resistor

R_FGSENSE is connected in series with the battery. The voltage across the resistor, equivalent to the

current entering/leaving the battery, is integrated using an ADC block.

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Fig. 3-5-3. The analog front-end of the fuel gauge block

Fig. 3-5-4 The Schematic of the fuel gauge block

Name Type Unused Description

FGSENSE+ Analog VBAT Fuel gauge current sensing input positive

FGSENSE- Analog VBAT Fuel gauge current sensing input negative

Table 3-5-2. Fuel Gauge channel spec

Page 67: LG KF750 KF755c Secret Service Manual

- 68 -

3. TECHNICAL BRIEF

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3.5.2 Battery Temperature Measurement

The BDATA node, the constant current source, feed the battery data output while monitoring the

voltage at the battery data node with GPADC. This battery data is converted to the battery

temperature. (Fig.3-5-5) shows the schematic of battery temperature measurement part.

Clo

se to

Pin

1

p42315C

p42215C

300K

R50

6

21

005X

zHK867.23

D50

1

KD

S22

1E_R

TK

3A1_

C2

2

A2

C1 1

21K1LATX2LATX

11K

01GN_FFOMIS

2KN_TSRS

KLCS3J3K

TADS

ATADB4H

21JZHK23

105PT

n_TSRSKLCSTADS

KLCCTR

Fig 3-5-5. Battery Temperature Measurement

Name Type Unused Description

BDATA Digital Input/Output Unconnected current output

Table 3-5-3 BDATA channel spec

Page 68: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

3. TECHNICAL BRIEF

- 69 -

3.5.3 Charging Part

The charging block in AB3000 processes the charging operation by using VBAT voltage. It is enabled

or disabled by the assertion/negation of the external signal DCIO. Part of the charging block are

activated and deactivated depending on the level of VBAT. (Fig.3-5-6) shows the schematic of

charging part.

When VBAT is below a certain value, 3.2V, a current generator take care of initial charging of the

CHSENSE+ node and internal trickle charge signal is active. This part of the charging block is

powered on and active when DCIO is asserted. The DCIO signal is asserted when its voltage is above

the voltage at VBAT. As soon as generator is turned off and all parts of the charging block are

functional and active. Battery block indication as shown in (Fig.3-5-7)

W4/1

W4/1

DNG_TTAB

BA ot esolChtap nruter

2102%1

riap laitnereffid a sa etuor1.0315R

TABV

K74415R

0115R3060

105QJD119AIS

1D

2D

3D

4D

1G

2G

1S

2S

0215R

520.0

C

D_TABV1H

SUBV1J

3F

11G-ESNESGF

GERHC2E

1E+ESNESHC

2F-ESNESHC

OICD

A_NICDNICD

SUBV

Fig. 3-5-6. Charging Part

4.2 ~3.88 (V) 3.87 ~3.81 (V) 3.80 ~3.74 (V) 3.73 ~3.59 (V) 3.58 ~3.20 (V)100~66 (%) 65~44 (%) 43~25 (%) 24~3 (%) 2~0 (%)

Fig. 3-5-7 Battery Block Indication

Page 69: LG KF750 KF755c Secret Service Manual

- 70 -

3. TECHNICAL BRIEF

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Trickle charging

When the VBAT is below a certain value, 3.2V, a current generator take care of internal trickle charge

signal is active. The charging current is set to 50mA.

Normal charging

When the VBAT voltage is within limits or the internal regulators are turned on, the current source for

trickle charging is turned off and all parts of the charging block are active. The charging method is

‘CCCV’. (Constant Current Constant Voltage)

This charging method is used for Lithium chemistry battery packs. The CCCV method regulates the

charge current and the VBAT voltage. This charging method prevents the battery voltage to go above

the charge set in the CCCV algorithm. (Fig.3-5-8) shows the charging voltage(a) and charging current

change(b).

Parameter Min Typ Max Unit

Trickle current 30 50 60 mA

Table. 3-5-4. Trickle charging spec

Fig 3-5-5. Battery Temperature Measurement

(a) Charging voltage

(b) Charging current

Page 70: LG KF750 KF755c Secret Service Manual

- 71 -

3. TECHNICAL BRIEF

• Charging Method : CCCV (Constant Current Constant Voltage)

• Maximum Charging Voltage : 4.2V

• Maximum Charging Current : 700mA

• Nominal Battery Capacity : 860 mAh

• Charger Voltage : 4.8V

• Charging time : Max 3.5h

• Full charge indication current (icon stop current) : 80mA

• Low battery POP UP : Idle - 3.52V, Dedicated - 3.48V

• Low battery alarm interval : Idle - 3 min, Dedicated - 1 min

• Cut-off voltage : WCDMA call - 3.1V, ELSE - 3.2V

Charging of Extended Temperature

When the battery temperature is outside the normal charging specification, the battery voltage, VBAT,

is maintained at 3.7V.

• Under 0 °C : Extended temperature

From 0 °C to 45 °C : Normal charging temperature

Over 45 °C : Extended temperature

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 71: LG KF750 KF755c Secret Service Manual

- 72 -

3. TECHNICAL BRIEF

3.6 Voltage Regulation

The LDO regulators and the BUCK converter generate a range of programmable voltages, each

optimized for its load. When the analog baseband controller boots up or down, internal signals activate

or deactivate the LDO regulators and the BUCK converter. In active mode, the LDO regulators and the

BUCK converter are activated and deactivated through I2C. The low power regulator is on all the time

and has extremely low power consumption with limited output current. It provides power for the 32 kHz

oscillator and the real-time clock (RTC).

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LDO Net Name Output Voltage Output Current Usage

ABB_LDO a (VDD_A) VRADA_2V8 2.8V 150mA RF3000 and RF3100 analog

ABB_LDO c (VDD_C) VDDC_2V65 2.65V 200mA Hall Switch, Audio Amp

ABB_LDO d (VDD_D) VDDD_1V5 1.5V 200mA AB3000 CODECs/ ADC/ PLL

VDIGRAD_1V8 1.8V 200mA RF3000 and RF3100 digital

VDDE_1V8 1.8V 200mA All I/ O Supplies and Memory

ABB_LDO f (VDD_F) VDDF_2V5 2.5V 30mA DB3150 Analog

ABB_LDO g (VDD_G) VDDG_2V75 2.75V 100mA SD card and LCD

ABB_LDO h (VDD_H) VDDH_SMB_2V75 2.75V 100mA 3 Axis Accelerator

ABB_LDO k (VDD_K) VDDK_2V75 2.75V 200mA Bluetooth

ABB_LDO LP (VDDLP) VBACKUP 1.5V 6.5mA RTC module

ABB_BUCK (VBUCK) VCORE 1.2V 600mA DB3150 Core

ABB_SIM LDO (SIMVCC) SIMVCC 2.85V 50mA SIM card

ABB_LDO e (VDD_E)

Table. 3-6-1. LDO and Buck

Page 72: LG KF750 KF755c Secret Service Manual

- 73 -

3. TECHNICAL BRIEF

3.7 RF Technical Description

3.7.1 General Description

The RF platform of KF750 supports two different communication modes (WCDMA/GSM modes)

including four communication bands (WCDMA2100/GSM900/GSM1800/GSM1900). The all the RF

blocks can be divided into three main parts, which are a WCDMA part, a GSM, and a RF front-end.

Different from other general solutions, the RF front-end of KF750 consists of an antenna switch and an

EDGE power amplifier module (PAM).

The simplified block diagram is shown in Figure 3-7-1.

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 3-7-1. Block diagram of RF part

Page 73: LG KF750 KF755c Secret Service Manual

- 74 -

3. TECHNICAL BRIEF

3.7.2 WCDMA Part

The W-CDMA transceiver uses differential analog in-phase and quadrature-phase interfaces, that is an

IQ-interface, both in the receiver and transmitter information path. The transceiver has the following

general features:• Power class : Power class 3 (+24dBm) in Band I• Zero-IF Receiver.No IF filter needed• Direct IQ modulation transmitter

A. Transmitter Part

The W-CDMA transmitter architecture is an on frequency linear direct up-conversion IQ-modulator.

The TX IQ modulator has differential voltage I and Q inputs. It converts input signals to RF output

frequency and is designed to achieve LO and image suppression. The in-phase and quadraturephase

reconstruction filters are fully integrated and a programmable gain amplifier implements the gain

control. The transmit output stage provides at least +5 dBm at maximum power control at the single-

ended 50 Ω output. Gain is set through the 3-wire bus. An external SAW filter between the WCDMA

circuit and the power amplifier is used to improve noise performance. Two 10-bit DACs are used to

control the DC/DC converter and the PA gain. After the power amplifier, the signal is sent through an

isolator and through the duplex filter, which directs the transmit signal to the antenna connector

through the antenna switch. The supply voltage and bias of the power amplifier are adapted depending

on the output power to achieve high efficiency at every transmitter power level. A high efficiency

DC/DC converter regulates the supply voltage and the bias operation point is controlled by a D/A-

converter in the W-CDMA radio circuit.

These DACs are controlled through the 3-wire-bus

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 3-7-2. WCDMA RF structure

Page 74: LG KF750 KF755c Secret Service Manual

- 75 -

3. TECHNICAL BRIEF

B. Receiver Part

The W-CDMA receiver architecture is a direct down-conversion Zero Intermediate Frequency (ZIF)

receiver with integrated low-pass channel filter, i.e. the front-end receiver converts the aerial RF signal

from W-CMDA band I down to a ZIF. The first stage consists of one single-ended low noise amplifier

(LNA) with a 16 dB gain step. This LNA is followed through an external filter by an IQ down-mixer

which consists of a mixer in parallel driven by quadrature out-of-phase LO signals. The In phase (I)

and Quadrature phase (Q) ZIF signal are then low pass filtered to provide protection from high

frequency offset interferer fed into the channel filter.

The front-end zero IF I and Q outputs are applied to the integrated low-pass channel filter with a

provision for 4 x 8 dB gain steps in front of the filter. The filter is a self-calibrated 6 pole, 2 zero filter

with a cut-off frequency around 2.15 MHz and a second order group delay compensation (2 poles, 2

zeroes). Once filtered, the zero IF I and Q signals are further amplified with provision of 31 x 1 dB

steps and DC offset compensation.

The zero IF output buffer provides close rail-to-rail outputs signal.

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 3-7-3. WCDMA Transceiver Architecture

Page 75: LG KF750 KF755c Secret Service Manual

- 76 -

3. TECHNICAL BRIEF

C. Synthesizer

The RX and TX RF VCOs are fully integrated and self-calibrated on manufacturing tolerances.

They have 16 different frequency ranges that are selected internally depending on the frequency

programming. The calibration is done on each low to high logical transition of the SYNON bit in the

control register or on each change of the integer divider ratio of the RF fractional N synthesizer.

A high-performance RF fractional-N synthesizer PLL is included on-chip which enables the frequency

of the RF VCO to be synthesized. The frequency is set through the 3-wire serial programming bus.

The PLL is based on Sigma-Delta (∑.) fractional-N synthesis that enables the required channel

frequency, including Automatic Frequency Control (AFC) from a free running external 26 MHz

reference frequency. Very low close-in-phase noise is achieved. This allows widening of the PLL loop

bandwidth and shorter settling time. The programmable main dividers are controlled by a second order

∑-modulus controller. They divide the RF VCO signals down to frequencies of 26 MHz (12 Hz step

programmability). Their phase is then compared in a digital Phase/Frequency Detector (PFD) to the 26

MHz reference clock signal.

The phase error information is fed back to the RF VCO through the charge pump circuit that .sources.

into or .sinks. current from the loop filter capacitor, thus changing the VCO frequency such that the

loop finally gets phase-locked.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

IND222C

Hn7.4402L

IND022C

IND122C

522C

p65

102LF00F0AK59G1BEFAS

21G

52G

33G

NI1

TUO4

p2.8

322C

922C

712C

IND

IND

8V2_ADARV

022

502R

8BIXTAQXT

901

BQXT

41_XT

XROLCCV42

6XTOLCCV

31V

CC

RX

40V

CC

TX

22DDV

VG

AC

TL

11 16N

C4

5CN32

526CN7CN

62

8CN82

9CN03

PG

ND

41

RE

FIN

15

38R

F_D

AC

1R

F_D

AC

239

17R

XIA

18R

XIB

19R

XQ

AR

XQ

B20

12TST

AIXT7

13C

LKD

ATA

12

EN

14

1XTDNG

72NI_1ANL

92TUO_1ANL

35M

IX1_

AM

IX1_

B36

21CN

32N

C10

NC

113334

NC

12

37N

C13

2CN3

3CN5

NH5916MO_0013FR

302U

022

702R

p6.5422C

8V2_ADARV

822CIND

002PT

612C

p65

202PT

812C

p65

5.6n

HL2

03

8V1_DARGIDV

8V2_ADARV

IND722C

402PT

3O

14O

2

00F0AF41G2BEFAS002LF

2G

15G

2

1IN

022

802R

102PT

022

602R

8V2_ADARV

302PT

I_DNAB_DOMXTW

N_Q_XRW

P_Q_XRW

N_I_XRW

P_I_XRW

1_DNAB_XRW

KLC_LRTC_FR

ATAD_LRTC_FR

BRTS_LRTC_FR

KLCW

SAIB_APWCCV_APW

P_I_XTWN_I_XTWP_Q_XTWN_Q_XTW

Figure 3-7-4. WCDMA Transceiver schematic

Page 76: LG KF750 KF755c Secret Service Manual

- 77 -

3. TECHNICAL BRIEF

D. Power Amplifier Module

The SKY77174 Power Amplifier module is a fully matched 10-pad surface mount module developed

for Wideband Code Division Multiple Access (WCDMA) applications. This small and efficient power

amplifier packs full coverage of the 1920-1980 MHz bandwidth into a single compact package.

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 3-7-5. SKY77174 Functional Block Diagram

723-B9159G181CDL

TUO_C3

1DNG52

2DNG

NI1

TUO_M6

4ETANIMRET

002N

p22p01602C

402C

312CIND

p65

702C

302Cp0001

Hn2.8202L

AP_CCV

112CIND

502Cp0001

2DNG1DNG

4DNG3DNGTUONI

000BCD59G102SEC002SI

47177YKS002U

ELBANE2

61DNG

2DNG7

3DNG9

DNGP11

4TUO_FRNI_FR

8

5SAIBV

11CCV

012CCV

3LORTNOCV

R20

0

47

TABV

002LHn1

IND902C

IND012C

u10.0002C

ESNES_WOPW

SAIB_APW

NE_1_DNAB_XTW

I_DNAB_DOMXTW 1_DNAB_XTW

Figure 3-7-6. WCDMA PAM schematic

Page 77: LG KF750 KF755c Secret Service Manual

- 78 -

3. TECHNICAL BRIEF

3.7.3 EDGE/GPRS/GSM RF block

The EDGE/GPRS/GSM transceiver use a digital interface that is shared between receive and transmit

data. The receive interface is based on I and Q data and the transmitter interface is based on envelop

and frequency data. The quad band EDGE/GSM/GPRS transceiver has the following general features:

Power class

GMSK low bands: Class 4 (33 dBm)

GMSK high bands: Class 1 (30 dBm)

8PSK low bands: Class E2 (27 dBm)

8PSK high bands: Class E2 (26 dBm)

Multi slot class 12 (4+4=5)

Dual Transfer Mode (DTM) class 9 (3+2=5)

Zero-IF receiver

• Polar modulation transmitter

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 3-7-7. GSM Transceiver Architecture

Page 78: LG KF750 KF755c Secret Service Manual

- 79 -

3. TECHNICAL BRIEF

A. Transmitter Part

Polar modulation transmitter architecture based on the direct phase/frequency modulation/synthesizer

architecture is implemented for GSM, GPRS and EDGE. This architecture has the capability of

generating both the GSM/GPRS constant envelope GMSK modulation and the linear EDGE 8-PSK

modulation in a very cost efficient way. The motivation for a polar modulation transmitter architecture

compared to traditionally linear architectures is to reduce the output noise (thus eliminating the need

for off-chip filters) reduce the power consumption by utilizing non-linear switching analog signal

processing blocks, and to eliminate the need for an RF isolator.

The transmitter block consists of several sub-blocks: A separate block is used to convert the digital bit

streams from the baseband into parallel words to be used in the DACs and the Sigma Delta modulator.

The combined DAC and LP-filter is used to convert the digital words of the digital block into analog

signals. The second FM-path is used to add the high frequency part of the FM to the VCO. It also

includes an auto-tuning block that compensates VCO gain variations.

In the Sigma Delta modulator block, the phase/frequency modulator in this polar modulation

architecture is a sigma-delta controlled fractional-N frequency synthesizer with an additional frequency

insertion point after the loop filter at the input of the VCO. In addition, The TX-buffer is used to drive

the PA with the correct power level. A divide by 2 or 4 block is used to generate the correct output

frequency from the 4 GHz VCO. The phase locked loop has two information inputs:

the divider ratio in the feedback path and a direct path to the VCO. The phase locked loop generates

the radio frequency carrier including the phase modulation information at the desired channel

frequency.

B. Receiver part

Direct down-conversion zero-IF receiver architecture is used for the four EDGE/GSM/GPRS frequency

bands 800, 900, 1800 and 1900 MHz. The complete receiver with four Low Noise Amplifiers (LNAs),

one for each supported band, is integrated on chip. After the down-conversion, the in-phase and

quadrature-phase components are low pass filtered with two anti-alias filters before the signals are fed

to the integrated high dynamic range sigma-delta A/D-converters. The only required external

components are the band selectivity SAW filters in front of the LNAs. One filter is required per

supported frequency band. The digital output signals are sent over a serial interface to the digital base-

band circuit for further processing and detection.

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 79: LG KF750 KF755c Secret Service Manual

- 80 -

3. TECHNICAL BRIEF

C. Synthesizer

The synthesizer contains all the frequency generating blocks in the RF3000 circuit: The reference 26

MHz frequency generation is made in a external crystal oscillator, which is fully integrated in the circuit

(except for the crystal). The digital bus controls the center frequency of the XO. All RFfrequencies are

generated in a single 4GHz VCO, subsequently divided by 2 or 4 to arrive at the final frequency. To

cover the required frequency range, the integrated Voltage Controlled Oscillator (VCO) operates at

twice the frequency for band 1800/1900, and at four times the desired frequency for band 800/900.

The RF-VCO is locked to the XO in a fractional-N PLL consisting of a prescaler, a phase-frequency

detector, a charge-pump, a sigma-delta modulator and a fully integrated loop filter. Automatic trimming

of the VCO center frequency and the RC constant makes sure that the variation of the PLL dynamics

is sufficiently low.

The XO also has an external reference mode where a differential 26 MHz clock reference signal can

be supplied externally at the XoP and XoN pins. A single-ended clock reference buffer MCLK sources

a harmonically controlled square wave reference signal to be used in the baseband. An additional

single-ended clock is generated for use in the W-CDMA circuit. This output is activated by a control

signal in the digital bus.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 80: LG KF750 KF755c Secret Service Manual

- 81 -

3. TECHNICAL BRIEF

3.7.4 Front-End Module (FEM)

A single antenna is used for all four bands. The antenna switch and the EDGE/GSM/GPRS power

amplifiers are integrated to a single circuit containing:

• Antenna Switch with support for W-CDMA band 1

• Power amplifiers for high and low band EDGE/GSM/GPRS

• AM modulator/control circuit

• Lowpass transmitter filtering

The antenna switch block connects the proper block in the radio system to the antenna connection. In

GSM/GRPS/EDGE systems, transmit and receive operations are divided in time, and the switch

connects the proper block in accordance with the mode of operation (that is, transmit or receive; one at

a time in the GSM, DCS, and PCS bands).

In W-CDMA systems, the transmitter and the receiver operate simultaneously (that is, full duplex).

The switch is used only for selecting the W-CDMA mode of operation . the split between transmit and

receive frequencies is handled by the W-CDMA duplexer.

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 3-7-8. Front-End Module

Page 81: LG KF750 KF755c Secret Service Manual

- 82 -

3. TECHNICAL BRIEF

A. Front End Part

SKY77519 TX-RX Front End Module (FEM) offers a complete transmit VCO-to-Antenna and Antenna-

to-receive SAW filter solution in a low profile (1.2 mm), compact form factor for handsets comprising

GSM850/900, DCS1800, and PCS1900 operation. The FEM also supports Class 12 General Packet

Radio Service (GPRS) multi-slot operation, Polar EDGE modulation, and provides single UMTS band

(band 1 or band 2) antenna switch-through via a dedicated UMTS port.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 3-7-9. SKY77519 Functional Block Diagram

p22701C

801CIND

815-SMK001WS

AC

G1

G2

201Cu01n01

101C

401Cp22

TABV

C10

9D

NI

501Cp22

5161

7DNG8DNG

7181

9DNG

32NI_MSG

2EDOM

DNGP92

DVSR3

1XR76

2XR3XR

54

4XR

NEXT1

52CPAV

TTABV62

1AMDCW01

8TNA1SB

8272

2SB

12NI_SCP_SCD

91DNG

01DNG9102

11DNG21DNG

2231DNG

42

2DNG1121

3DNG4DNG

3141

5DNG

6DNG

001U91577YKS

u01301C001C

p22

p22601C

0WSTNA

SCPSCD_XT

MSGE_XT

009XR

0081XR

058XR

1WSTNA

CPAV

0091XR2WSTNA

1_DNAB_FRW

Figure 3-7-10. Front End part schematic

Page 82: LG KF750 KF755c Secret Service Manual

- 83 -

3. TECHNICAL BRIEF

3.7.5 Control Flow

The access side of the digital baseband controller controls the overall radio system. In both

EDGE/GSM/GPRS and W-CDMA air interface mode, the digital baseband controller controls the radio

system through a three-wire serial bus.

The digital baseband controller also manages PA band control and the antenna switch mechanism in

the front end module. The 26 MHz VCXO clock residing in the GSM/EDGE transceiver is turned on

only when required, the digital baseband controller initiates this.

The EDGE/GSM/GPRS RF system requires control, which is temperature dependent. The

temperature within the RF system is estimated by a voltage measurement performed by the analog

baseband controller. The control flow for the RF system is shown in Figure 3-7-11.

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 3-7-11. RF Control Flow

Page 83: LG KF750 KF755c Secret Service Manual

- 84 -

4. TROUBLE SHOOTING

4.1 Power ON Trouble

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

TP(END)

< MULTIKEY PCB >

START

No

Change main board

changemain battery

Yes

Yes

No

No

The voltage of main batteryis higher than 3.2V ?

END key operates well?

ONSWAn(D900) level is low

when END key pressed.

Follow thekeypad Troubleshooting guide

Check the voltage.

VDD_A (C501) 2.75V

VDD_D (C502) 1.5V

VDD_E(C503) 1.8VVDD_F (C508) 2.5VVDD_G (C509) 2.5VVDD_H (C507) 2.75VVDD_K(C510) 2.75V

VDD_LP(C511) 1.5V

SWBUCK(L500) 1.2V

< MAIN PCB >

VDD_AVDD_D

VDD_E

VDD_F

VDD_G

VDD_H

VDD_K VDD_LP

SWBUCK

ON_SW KEY

EV

LC14

S02

050

VA

901

VA

904

EV

LC14

S02

050

EV

LC14

S02

050

VA

903

EV

LC14

S02

050

VDDE_1V8

VA

902

CLR

R90010K

10K R901

END

VA900

ICVS0514X350FR

D900

RB521S-30

OKSEND

ONSWA_n

ONSWA_n

KEYIN5

KEYIN4

KEYOUT2

KEYOUT1

KEYOUT2KEYOUT1

KEYIN4KEYIN5

205Cu1u1

105C

905Cu1u1

015C705Cu1u1

605Cu1

805C

u2.2305C

Fn33115C

11AC_DDV

21FD_DDVE_DDV

21D

9AF_DDVG_DDV

7A

21BH_DDV

K_DDV21M

11JPLDDV

21CA_DDVODLTXE

11B

TP01_BB(END)

TP01_BB(END)

TP01_BB(END)

VDD_A

VDD_D

VDD_E

VDD_FVDD_G

VDD_H

Page 84: LG KF750 KF755c Secret Service Manual

- 85 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.2 USB Trouble

START(Measure during the state of

USB module running)

Input power(R619) is 5V?No

Change main board

Check host USB portor USB cable

Yes

NoResolder or check the VBAT line

Yes

ACC_GP20_USB_CS_PD(R603) is 1.8V?No

Resolder or change U601

Yes

VBAT power(C601 or C600) is same to battery?

V01

1%

deepS hgiH rof reviecsnarT BSU

0.1u

C60

4 3060

TABV

u7.4106C

R60

351

K

R60

612

K

0.1u

C60

3

4.7u

3060

C60

2

8V1_EDDV

3060u1.0006C

4.7u

C60

6

K1506R

0.1u

3060

C60

5

6D

TSET4C

4FSUBV

VC

CF

3

5B1OI_CCV2OI_CCV

2B

5F1LATX2LATX

6F

7ATAD

5ERID

MD1C1D

PDTLUAF

2E

GN

D1

C5

D2

GN

D2

GN

D3

E4

3DDI

NC

1F

1F

2N

C2

5DN_WSPTXN

4D

6E8V1FER

3E3V3GER

2CFERR

PTS

0GFC1E

4B1GFC2GFC

3B

LES_PIHC3C4A

KCOLC0ATAD

1B1A

1ATAD2ATAD

2A3A

3ATAD4ATAD

5A6A

5ATAD6ATAD

6B6C

TEA8051PSI106U

2.2u

C60

7

TXN_BSU_50PG_CCAPTS_BSU_00PG_CCA

1LATX_BSU

MD_BSU

XRT_BSU_SUBV

PD_BSU

DP_SC_BSU_02PG_CCAKLC_BSU_40PG_CCA

0TAD_BSU1TAD_BSU2TAD_BSU3TAD_BSU_22PG_CCA4TAD_BSU_60PG_CCA5TAD_BSU_70PG_CCA6TAD_BSU_01PG_CCA7TAD_BSU_11PG_CCA

RID_BSU_10PG_CCA

V2.4+_TABV

XR_TRAU

HSALFPPVV5+_GHCV

n_BWSNO

DNG

CDA_TMR/MD_BSUn_TCETED_RAE

V2.4+_TABV

TNI_TMR/PD_BSU

XT_TRAU

V5+_GHCV

REWOP_BSU

206BFV

A60

3

ULC

E05

05C

015F

R

789011121314151617181

02

CP52-40S81-JESH

ULC

E05

05C

015F

R

VA

602

C62

022

p

u10.0426C

C62

222

p

326Cu1

RS

B6.

8CS

T2R

ZD

600

R62

2

DN

I

106PT526R

0

0

916R

VA

601

ULC

E05

05C

015F

R

22p

C62

1

916Cu2.2

8ETAG

TUO_ETAG9

2DNG

1NI1

2NI4

53NI

1CN1121

2CN

61TUO

2TUO7

01NE_

GALF_3

306UG2RTM843PCN

DN

I

R62

3

L31BFSU006D

TABV

R62

4

0

XRT_BSU_SUBV

A_NICD

SUBV

XR_TRAU_CCA_PPAXT_TRAU_CCA_PPA

E_HSALFPPV

NO_STC

< Main Board ñ Bottom side >

R619 C601C600

R603

TP04_BBR603

TP02_BBR619

TP03_BBC600

TP04_BBR603

TP03_BBC601

TP02_BBR619

TP03_BBC600C601

Page 85: LG KF750 KF755c Secret Service Manual

- 86 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.3 SIM Detect Trouble

• SIM control path

- Asta generates SIM interface signals(1.8V level) to AB3000.

- AB3000 converts SIM interface signals to 3V.

SIM work well? Finish

Finish

START

Yes

Yes

Yes

Reconnect SIM card

Resolder J901 on main PCBand check the contact

between J901 and SIM card

Change main board

SIM work well? Finish

No

No

SIM work well?

No

Change SIM card

< SOCKET PCB - SIM Connecto r >

J901

Page 86: LG KF750 KF755c Secret Service Manual

- 87 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.4 MicroSD card Trouble

Baseband chipset use polling method to detect the microSD Card.

< Socke tPCB side

mic roSD Socket >

MicroSD card work well?

START

Yes

Re-insert MicroSD card

Check operation of MicroSD card using other notebook or PDA

No

MicroSD work well? Change the MicroSDNo

Yes

FINISH

Finish

DS ORCIM

VA

908

EV

LC18

S02

015

57V2_GDDV

VA

910

EV

LC18

S02

015

EV

LC18

S02

015

VA

909

KLC5

DMC3

0TAD78

1TAD1

2TAD2

3TAD

91DNG

012DNG

113DNG4DNG

21

DDV4

SSV6

009J

VA

907

EV

LC18

S02

015

EV

LC18

S02

015

VA

911

VA

905

EV

LC18

S02

015

3TAD_DSORCIM_LAERDMC_DSORCIM_LAER

0TAD_DSORCIM_LAER

KLC_DSORCIM_LAER

1TAD_DSORCIM_LAER2TAD_DSORCIM_LAER

Page 87: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 88 -

4.5 Keypad, Touch Button and Touch Screen Trouble

4.5.1 Keypad Trouble

(1) If one of the side key is short with other signal or pressed, some key is not work.

Page 88: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 89 -

CN1

Side key

RA101

VA101~ VA108

CN700

8V1_EDDV

4G3G

5161718191202

3456789

2G1G1NC

1

1101213141

57V2_GDDV

0081301R0081401R

VB

AT

1OCC

3NIYEK2NIYEK1NIYEK0NIYEK

N1CIMP1CIM

4TUOYEK2DEL_YEK

1TUOYEK2TUOYEK3TUOYEK

ESNESPILF_51PG_CCA

1DEL_YEK

VA

104

EV

LC14

S02

050

EV

LC14

S02

050

VA

106

VA

108

EV

LC14

S02

050

VA

103

EV

LC14

S02

050

VA

107

EV

LC14

S02

050

EV

LC14

S02

050

VA

101

VA

105

EV

LC14

S02

050

EV

LC14

S02

050

VA

102

3NIYEK2NIYEK1NIYEK0NIYEK

1TUOYEK2TUOYEK4TUOYEK3TUOYEK

elameF_ROTCENNOC nip 02

8V1_EDDV

2G1G

4G3G

31

41

51

61

71

81

912

02

3

4

5

6

7

8

9

007NC

1

1101

21

TABV

57V2_GDDV

N1CIM

1OCC

4TUOYEK

0NIYEK

1NIYEK

2NIYEK

3NIYEK3TUOYEK

ESNESPILF_51PG_CCA P1CIM

2TUOYEK

1TUOYEK

2DEL_YEK

1DEL_YEK

8

5TOH

4 5

7

YEK_REBMUN

6

3

0

2

4TOH

9

1

401 501

011

601

301201

701

201TOH101TOH

2 4 6 8

1 3 5 7 K01

101AR

101

801 901

8V1_EDDV

2NIYEK

0NIYEK

1NIYEK

1TUOYEK

3TUOYEK

2TUOYEK

4TUOYEK

3NIYEK

Main key PCB

Main board

TP08_BBCN1

TP06_BBRA101

TP05_BBSide key

TP08_BBCN700

TP07_BBVA101

~ VA108

Page 89: LG KF750 KF755c Secret Service Manual

4.5.2 Touch button and Touch screen Trouble

- 90 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 90: LG KF750 KF755c Secret Service Manual

CN702

CN106

CN108

Main Board

FLCD

Multikey

CN902

1#OIPG htiw C2I neercS hcuoT940515253545

3343536373 44

54647484

728292031323T

OU

CH

_3.1

V

8V1_EDDVDI_DCL_21PG_PPA

]6[ATAD_DCL]5[ATAD_DCL

]7[ATAD_DCL

LCS_NEERCS_HCUOTADS_NEERCS_HCUOT

TNI_NEERCS_HCUOT

445464748494051525354555

0313233343536373

62728292

TO

UC

H_3

.1V

8V1_EDDVDI_DCL_21PG_PPA

TNI_NEERCS_HCUOTADS_NEERCS_HCUOT

LCS_NEERCS_HCUOT

]7[ATAD_DCL

]5[ATAD_DCL]6[ATAD_DCL

]4[ATAD_DCL

40414243444

56

3

93

2

801NC1

V1.3_HCUOT

LCS_NEERCS_HCUOT

TNI_NEERCS_HCUOTADS_NEERCS_HCUOT

TOUCH_3.1V

6 39

44041424344

5

23

CN9021

TOUCH_SCREEN_SCL

TOUCH_SCREEN_INTTOUCH_SCREEN_SDA

- 91 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

TP09_BBCN702

TP09_BBCN106

TP09_BBCN108

TP09_BBCN902

Page 91: LG KF750 KF755c Secret Service Manual

- 92 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

U700

Main Board

U800

R906

Multikey

R907

ODL_HCUOT

D113D4111R007U

EC6

1DNG2

2DNG5

4CN

1DDV

3TUOV

TABV

u1717C

R71

00

V1.3_HCUOTV1.6_GERV

617Cu1

R70

9D

NI

NE_ODL_HCUOT_21PG_CCA

retfihS leveL NEERCSHCUOT

608PT

R80

22.

2K

R80

4

0

8V1_EDDV

318PT

408PT

708PT

C80

60.

1u

R80

02K2.

2KR

801

TO

UC

H_3

.1V

1A1A

2A2A

3A3A

A4

A4

1C1B

C2

B2

B3

C3

B4

C4

4BDNG

3BEO

VC

CA

B2

B1

VC

CB

008URUXZE4010SXT

0.1u

C80

5

508R

0

1uC

807

TSR_HCUOT

NE_ODL_HCUOT_21PG_CCA

TESER_HCUOT_50PG_PPA

LCS_NEERCS_HCUOT_50PG_PPA

ADS_NEERCS_HCUOT_61PG_PPA

TNI_NEERCS_HCUOT

LCS_NEERCS_HCUOT_NI

ADS_NEERCS_HCUOT_NI

TNI_NEERCS_HCUOT_40PG_PPA

TOUCH_CONNECTORTOUCH_3.1V

R90

6

4.7K

4.7K

R90

7

6

7 8

9

15 16

17 18

1

10

11

12

13

14

2

3

4

5

CN901

DN

I

R90

5

TOUCH_SCREEN_INT

TOUCH_SCREEN_SCL

TOUCH_SCREEN_SDA

The output must be 3.1V DC.

The output must be 3.1V DATA or Clock signal

Change Multikey PCB

TP10_BBU700

TP11_BBU800

TP12_BBR906

TP12_BBR907

Page 92: LG KF750 KF755c Secret Service Manual

- 93 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.6 Multi EL lighting Trouble

Page 93: LG KF750 KF755c Secret Service Manual

- 94 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

CN702

CN106

CN108

Main Board

FLCD

Multikey

CN902

1#OIPG htiw C2I neercS hcuoT940515253545

3343536373 44

54647484

728292031323T

OU

CH

_3.1

V

8V1_EDDVDI_DCL_21PG_PPA

]6[ATAD_DCL]5[ATAD_DCL

]7[ATAD_DCL

LCS_NEERCS_HCUOTADS_NEERCS_HCUOT

TNI_NEERCS_HCUOT

445464748494051525354555

0313233343536373

62728292

TO

UC

H_3

.1V

8V1_EDDVDI_DCL_21PG_PPA

TNI_NEERCS_HCUOTADS_NEERCS_HCUOT

LCS_NEERCS_HCUOT

]7[ATAD_DCL

]5[ATAD_DCL]6[ATAD_DCL

]4[ATAD_DCL

40414243444

56

3

93

2

801NC1

V1.3_HCUOT

LCS_NEERCS_HCUOT

TNI_NEERCS_HCUOTADS_NEERCS_HCUOT

TOUCH_3.1V

6 39

44041424344

5

23

CN9021

TOUCH_SCREEN_SCL

TOUCH_SCREEN_INTTOUCH_SCREEN_SDA

TP13_BBCN702

TP13_BBCN106

TP13_BBCN108

TP13_BBCN902

Page 94: LG KF750 KF755c Secret Service Manual

- 95 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

U700

Main Board

U800

U400output

Main Board

ODL_HCUOT

D113D4111R007U

EC6

1DNG2

2DNG5

4CN

1DDV

3TUOV

TABV

u1717C

R71

00

V1.3_HCUOTV1.6_GERV

617Cu1

R70

9D

NI

NE_ODL_HCUOT_21PG_CCA

LE ROF CDCD V1.6_GERV

5.1K

R40

6 u7.4124C

TABV

004LHu01

NE4

DNG2

PG

ND

5

3NIV

1TUOV

004QTMY17049CIM

20K

R40

4

u2.2224C DGNA

4

NE63

BFCN

5

TUO81

DNGP

WS7

9DNG_T

2NIV

004U

LMY0922CIM

NE_CDCD_LE

retfihS leveL NEERCSHCUOT

608PT

R80

22.

2K

R80

4

0

8V1_EDDV

318PT

408PT

708PT

C80

60.

1u

R80

02K2.

2KR

801

TO

UC

H_3

.1V

1A1A

2A2A

3A3A

A4

A4

1C1B

C2

B2

B3

C3

B4

C4

4BDNG

3BEO

VC

CA

B2

B1

VC

CB

008URUXZE4010SXT

0.1u

C80

5

508R

0

1uC

807

TSR_HCUOT

NE_ODL_HCUOT_21PG_CCA

TESER_HCUOT_50PG_PPA

LCS_NEERCS_HCUOT_50PG_PPA

ADS_NEERCS_HCUOT_61PG_PPA

TNI_NEERCS_HCUOT

LCS_NEERCS_HCUOT_NI

ADS_NEERCS_HCUOT_NI

TNI_NEERCS_HCUOT_40PG_PPA

The output must be 3.1V DC.

The output must be 3.1V DATA or Clock signal

The output must be 6.1V DC.

TP14_BBU700

TP15_BBU800

TP16_BBU400

output

Page 95: LG KF750 KF755c Secret Service Manual

- 96 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

MultikeyEL sheet operating voltage generator(L900, D901, Q900, C903, R910 or R913)

Check the output of C903Output must be 190V AC about 800KHz

Replace U900

D5

G

S1 S2

Q900SIA450DJ

D1 D2 D3 D4

R90

9

0

2.2uC902

470pFC903

VREG_6.1V

R91

3

100K

10M

R91

0

0.1u

TOUCH_3.1V

C906

RF051VA2S

D901

0.1u

C90

4

100K

R912150pC905

100uHL900

EL sheet operating voltage generator(L900, D901, Q900, C903, R910 or R913)

TP17_BBCheck the output of C903

Output must be 190V AC about 800KHz

Replace U900

Page 96: LG KF750 KF755c Secret Service Manual

- 97 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.7 Camera Trouble

5M Camera control signals are generated by Zoran.

4.7.1 5M Camera

START

Press END Keyto turn on the power

Is the circuit powered?

Reconnect the 5M 34pin B to B connector

5M Camera Operation OK?

Or C722 = 2.8V?

Change 5M Camera

Follow the Power On Trouble Shooting

Change U703 or Change U702

YES

NO

YES

YES

5M Camera Works

NO

Change the Main Board

NO

1

2

NO

C721 = 1.8V?

Page 97: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 98 -

CN701

1

5MCamera

off

34pin 5M Camera Connector in Main Board

Page 98: LG KF750 KF755c Secret Service Manual

- 99 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

2

TP 2

5M Regulator in Main Board (Top)

U703

C721

5MCamera

TP18_BB (1.8V)

5M Regulator in Main Board (Bottom)

5MCamera

U702

C722

TP19_BB(2.8V)

NIV1

1TUOV87

2TUOV

WQPGM-1109TR

21NE2NE

35

DNG1CN4

2CN6

PG

ND

9

307U

V8.1_DDV_MACV8.2_FA_DDV_MAC

1uC

723

TABV

C72

1

1u 1u

NE_RWP_MAC_PMM

C72

0

1uC

724

6EC

1DNG2

2DNG5

CN4

1TUOVDDV

3

TABV

F-RT-D182D4111R207U

C72

21u

V8.2_DDVA_MAC

NE_RWP_MAC_PMM

TP18_BB

TP19_BB

Page 99: LG KF750 KF755c Secret Service Manual

- 100 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.7.2 VGA Camera

VGA Camera control signals are generated by DB3150.

START

Press END Keyto turn on the power

Is the circuit powered?

Reconnect the 80pin BtoB connectorCN702 and VGA 20 pin Camera Connector

VGA Camera Operation OK?

VGA Camera Operation OK?

Follow the Power On Trouble Shooting

YES

NO

YES

NOChange the Camera&LCD FPCB or Soket PCB

YES

VGA Camera Works Change the Main Board

NO

NO

1

Change U903

YES

NO2

NO

Change VGA Camera

c922 = 1.8V?c921 = 2.8V?

Page 100: LG KF750 KF755c Secret Service Manual

- 101 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

1

Main Board 80 pin BtoB Connector

LCD FPCB 20 pin VGA Connector

CN702CN104

Page 101: LG KF750 KF755c Secret Service Manual

- 102 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

R93

0

0

03-SC125BR 539R0

129C

u1

u1029C

239R0V8.2_DDV_AGV0

439R03-SC125BR

u2.2519C

819C

DN

I

R94

2

u1

u1719C

229C

u1

V8.1_DDV_AGV519PT

339R0

919C

TABV

u1.0

139R0

8V1_EDDV

C91

610

u

SAIBS5F

5DLCS

4DADS

5EDNGS

SNESS3F

A1

T1

A6

T2

T3

F6

F1

T4

4F1TABV

PCTABV5B

ODLTABV1E

6EOIV

4BTUOV

NIMWPW1D

N3C4A

P3C5A

3ADNGPC

TNCHSALF3D

1CG4E3E

2CG

O1ODL2F

O2ODL2E

2D1DEL

2C2DEL3DEL

1C

4DEL1B

5DEL2B2A

LFDEL

3BDNGDEL

BTESER4C

LUG5906DB

309UN1C

6D5C

P1C

6CN2CP2C

6B

BTESER_MP_BUS

2DELW3DELW4DELW5DELW

SNES

MWP_DCL

LCS_MP_BUSADS_MP_BUS

1NIAG

SAIBS

1DELW

2NIAG

RWP_DELW

Charge Pump in Socket Board

U903

C921

C922

2

TP21_BB (2.8V)

TP20_BB (1.8V)

TP 2TP21_BB

TP20_BB

Page 102: LG KF750 KF755c Secret Service Manual

- 103 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.8 Main LCD Trouble

LCD control signals are generated by DB3150.

START

Press END Keyto turn on the power

Is the circuit powered?

Disconnect and Reconnect the 80pin (Main)or 44 pin (LCD PCB)

LCD Display OK?

Follow the Power On Trouble Shooting

Change LCD FPCB or Multikey PCB

YES

NO

YES

YES

NO

1

NO

Disconnect and Reconnect the LCD FPCB 44pin and 37pin LCD connector (Multikey PCB)

LCD Display OK?

The LCD Works

Follow the Power On Trouble Shooting

Change LCD Module

LCD Display OK?

Change the Main Board

NO

YES

2

Page 103: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 104 -

Main Board 80 pin BtoB Connector

1

Multikey PCB 44pin & 37pin LCD Connector

LCD FPCB 44 pin BtoB Connector

2

CN702

CN108

CN900

CN902

Page 104: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 105 -

4.9 Keypad Backlight Trouble

START

Press END Keyto turn on the power

Keypad Backlight Works?YES

NO

VBAT applied? Change Main BoardNo

Keypad Backlight Works?

Check V at R 101 or R 102 is confirmNo

Change LD101 or LD102

No

YES

YES

1

2

Crack Mainkey PCB to main board

YES

Change Mainkey PCB

YES

Keypad Backlight Works

No3 Change Main Board

Page 105: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 106 -

3

TP22_BB

TP23_BB

R101 R102

TP24_BB

201R

mho001

VB

AT

mho001

101R

RS

B6.

8CS

T2R

ZD

101

ZD

102

RS

B6.

8CS

T2R

1

A

2

C

101DL

7001STWS-CSS

1

A

2

C

7001STWS-CSS

201DL2DEL_YEK

1DEL_YEK

TP22_BB TP23_BB

TP24_BB

1

2

Page 106: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 107 -

4.10 Folder ON/OFF Trouble

START

Insert magnetIn component

No

Yes

Turn the power on

Check magnet

Pin 1 of U101 = 2.75V

Yes

No

Yes

Change Mainboard

1

2

Crack Mainkey PCB

Change Mainkey PCB

Yes

Finish

Slide OK?

Yes

No

Change Main board

No

3

Page 107: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 108 -

Be sure that magnet is here

1

U101

3

2

TP25_BB(2.75V)

TCETED EDILS

4TUO

DDV1

5MB21006KT101U

21DNG

52DNG

6DDV_OI

CN3

211C

8V1_EDDV

u1.0

u1.0901C

57V2_GDDV

ESNESPILF_51PG_CCA

TP25_BB

Page 108: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 109 -

4.11 Audio Trouble Shooting

4.11.1 Receiver• Signals to the receiver

- Receiver signals are generated at Veronica

• BEARP, BEARN

- Receiver path:

• 1. Veronica (BEARP, BEARN)r →

• 2. R518,R519 on main boardr →

• 3. U501 (Analog switch) on main boardr →

• 3. LCD FPCBr →

• 4. Speaker/Receiver

• Note: It is recommended that engineer should check the soldering of R, L, C along the

corresponding path before every step.

Page 109: LG KF750 KF755c Secret Service Manual

- 110 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

START

Connect the phone to networkEquipment and setup call

Setup 1KHz tone out

Does the sine wave appearat R518, R519 ?

Change the main board

Does the sine wave appearat Number 65, 66 pin

in the main Bíd CN702?Check 5, 8 pin at U501

Does the sine wave appearat EAR(+) PAD in LCD FPCB? Change the LCD FPCB

Does the Receiver get incontact with the LCD

FPCB sus

Re-assemble the Receiver

Can you hear sine waveout of the receiver ?

Change the Receiver

END

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

1

2

3

4

The sine wave not appear

Page 110: LG KF750 KF755c Secret Service Manual

- 111 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

1

TP26_BB

R518, R519

LCD FPCB

3

2

TP27_BB

Pin 65, 66

CN702

TP28_BB

Page 111: LG KF750 KF755c Secret Service Manual

.pmA rekaepS

%1

%1

%1

%1

%1

%1

n74135C

51915R

SSAPYB1C

DNG2B

2C+NI

3C-NI

3ADDV

+OV3B

-OV1A1B

NWODTUHS_

RVQZ1A5026APT005U220n

C53

6

3060 K01125R

K93715R

47K

R52

5

3060

5A2

20B2

31B2

DNG4

1S7

2S6

CCV9

XMUT8622ASF105U

A1801

0B1

11B1

n01535C

3060

TABV

51815R

TABV

R52

210

0K

3060

u2.2525C

3060 K01025R

K93425R

n74235C

NRAEB

NE_WS_PMA_72PG_CCA

NE_PMA_KPS_31PG_CCA

PRKPS

NRKPS

+VCR_KPS

-VCR_KPS

PRAEB

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 112 -

2#OIPG htiw C2I LES-P

1#OIPG htiw C2I neercS hcuoT

2#OIPG htiw C2I nottuB hcuoT

8797

8

08

9

2636465666768696

7

0717273747576777

94

5

05152535455565758595

6

0616

33435363738393

4

140424344454647484

2

02122232425262728292

3

031323

207NC1

01112131415161718191

IND

0007R

517C

VD

D_L

CD

_2.6

V

IND417C

0107R

TO

UC

H_3

.1V

VR

EG

_6.1

V

IND217C

VG

317CIND

VG

A_

8V1_EDDVDI_DCL_21PG_PPA

N_TESER_DCL

N_SDA_DCLN_SC_DCLN_EW_DCL

MWP_DCL

RWP_DELW

4DELW3DELW2DELW1DELW

5DELW

LCS_NOTTUB_HCUOT

TSR_HCUOTADS_NOTTUB_HCUOT

N_DR_DCLCNYSV_DCL

n_AWSNO

]0[ATAD_DCL]1[ATAD_DCL]2[ATAD_DCL

]4[ATAD_DCL

]6[ATAD_DCL

]3[ATAD_DCL

]5[ATAD_DCL

]7[ATAD_DCL

LCS_NEERCS_HCUOTADS_NEERCS_HCUOT

TNI_NEERCS_HCUOT

KLCP_IC

CNYSV_ICCNYSH_IC

n_SER_IC

LCS_C2I_PPAADS_C2I_PPA

FFO_OI_CV_12PG_CCA

1TUOYEK2TUOYEK4NIYEK5NIYEK

2D_IC3D_IC4D_IC5D_IC

7D_IC6D_IC

+VCR_KPS-VCR_KPS

+RWP_ROTOM-RWP_ROTOM

0KLCSYS

1NIAG2NIAG

SAIBSSNES

0D_IC1D_IC

1

2

TP26_BBR518, R519

TP27_BBPin 65, 66

Page 112: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 113 -

Measured 1khz Sine Wave Signal

1

3

2

Measured 1khz Sine Wave Signal

TP26_BBR518, R519

TP27_BBPin 65, 66

TP28_BB

Page 113: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.11.2 Speaker (Voice Loud Speaker, Midi, MP3, Key Tone)• Signals to the speaker

- Speaker signals are generated at Veronica

• SPKRP, SPKRN

- Speaker path:

• 1.Veronica (SPKRP, SPKRN) →

• 2. C531, C532 on the main board →

• 3. U500(audio amp) on the main board →

• 4. U501 (Analog switch) on the main board →

• 5. LCD FPCB →

• 5.Speaker/Receiver

• Note: It is recommanded that engineer should check the soldering of R, L, C along the

corresponding path before every step.

4. TROUBLE SHOOTING

- 114 -

Page 114: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 115 -

START

Connect the phone to networkEquipment and setup call

Setup 1KHz tone out

Does the sine wave appearat C531, C532? Change the main board

Does the sine wave appearat U500 ? Change the U500

Does the sine wave appearat U501 ?

YES

YES

YES

YES

NO

NO

NO

NO

Can you hear sine waveout of a speaker ?

Change the Speaker

END

YES

NO

Change the main board

Does the sine wave appearat EAR(+) PAD in LCD FPCB?

1

4

3

2

The sine wave not appear

5

Change the LCD FPCB

Page 115: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 116 -

1 3

2

B SIDE

4

TP29_BBC531, c532

TP30_BBU500

TP32_BB

TP31_BBU501

Page 116: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 117 -

Measured 1khz Sine Wave Signal

5

.pmA rekaepS

%1

%1

%1

%1

%1

%1

n74135C

51915R

SSAPYB1C

DNG2B

2C+NI

3C-NI

3ADDV

+OV3B

-OV1A1B

NWODTUHS_

RVQZ1A5026APT005U220n

C53

6

3060 K01125R

K93715R

47K

R52

5

3060

5A2

20B2

31B2

DNG4

1S7

2S6

CCV9

XMUT8622ASF105U

A1801

0B1

11B1

n01535C

3060

TABV

51815R

TABV

R52

210

0K

3060

u2.2525C

3060 K01025R

K93425R

n74235C

NRAEB

NE_WS_PMA_72PG_CCA

NE_PMA_KPS_31PG_CCA

PRKPS

NRKPS

+VCR_KPS

-VCR_KPS

PRAEB

1

2 3TP29_BBC531, c532

TP30_BBU500

TP31_BBU501

Page 117: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 118 -

4.11.3 Microphone (Voice call, Voice Recorder, Video Recorder)• Microphone Signal Flow

- MIC is enable by MIC Bias

- CCO1, MIC1P, MIC1N signals to ABB3000 (Veronica )

• Check Points

- Microphone bias

- Audio signal level of the microphone

- Soldering of components

• Signal from the mic

- MIC →

- C104 on mainkey PCB →

- C106, C108 on mainkey PCB →

- R103, R104 on mainkey PCB →

- Veronoca →

Page 118: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 119 -

START

Is the level of CCO12.4Volt ?

Change the MIC

Check the signal level at C106, C108 at the putting

Audio signal in MIC

Does it work properly ?

END

Yes

YES

No

A few hundred of mV of the signal measured ?

Change the main B,d

Check the MIC bias level at the C104

Resolder C106, C108and try again.If fail again,

chage the main Bíd

3

2

1

No

Yes

Yes

No

Page 119: LG KF750 KF755c Secret Service Manual

- 120 -LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

1

2

eniL mm51.0 : DNGD etarepeS

CIM

n74601C

501C

u01 p74401C

4

101CIM

3-BP-5EH4020MPS

1G2

2G3

O1

P

n74801CP1CIM

N1CIM

1OCC

1

2

TP33_BBC106, C108

TP32_BBC104

TP32_BBC104

TP33_BBC106, C108

Page 120: LG KF750 KF755c Secret Service Manual

- 121 - LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Measured Some Noise Signal

2

TP33_BBC106, C108

Page 121: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 122 -

4.11.4 Headset Receiver (Voice call, Video Telephony, MP3)

START

Connect the phone to networkEquipment and setup call

Setup 1KHz tone out

Insert Headset.Does the Headset icon display

on the main LCD?

Can you hear sine waveout of the receiver ?

Change the main Bíd

END

YES

YES

YES

YES

NO

NO

NO

Does the level of R621under 0.5Volt ?

NO

Does the level of R621over 1.6Volt ?

YES

N0Change the main B,d

YES

Does the sine wave appearat C613, C614 ?

NO

Does the sine wave appearat FB600, FB601?

Resolder CN600 Pinsor change the Headset

1

2

6

3

8

Resolder R620And try again from the start

4Does the sine wave appear

at FL601 ?5

YES

Change the the FL601

NO

Change the FB600, FB601

YES

NO

Does the sine wave appearat R816, R817?7

Change the FB600, FB601

Page 122: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 123 -

TP36_BB

R620

TP39_BB

R816, R817

TP35_BB

C613, C614

TP37_BB

FL601

TP38_BB

FB600, FB601

4

3

TP34_BB

R621

1

5

6

7

TP40_BB

CN600

8

Page 123: LG KF750 KF755c Secret Service Manual

- 124 -LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

CDA_TMR/MD_BSU

V2.4+_TABV

L_RAE

CIM_SH

%1

XR_TRAU

HSALFPPV

TNI_TMR/PD_BSU

V5+_GHCV

)81.90.7002(TUO_VT

n_BWSNO

%1

R_RAE

DNG

CDA_TMR/MD_BSUn_TCETED_RAE

PU

LL-U

P R

EM

OV

ED

200

7.10

.01

V2.4+_TABV

rotcennoc ot raen

TNI_TMR/PD_BSU

TNA_MF

XT_TRAU

V5+_GHCV

REWOP_BSU

0

616R

306BF

3060

K022026R

u1.0016C

8V1_EDDV

3060

R62

1

0

206BF

VA

603

ULC

E05

05C

015F

R

516C

IND

006BF

006AVRF510C5050ECLU

u1.0

56789

3060

906C

1

011121314151617181

91

2

02

34

CP52-40S81-JESH

006NC

ULC

E05

05C

015F

R

VA

602

C62

022

p

u10.0426C

106BF

74618R

506BF

C62

222

p

074016R

816C

IND

326Cu1

RS

B6.

8CS

T2R

ZD

600

TABV

+1DSH

7-1DSH

2+2DSH

-2DSH6

LES01

9CCV

8EO_

R62

2

DN

I

206UXMU03BSUSF

+D3

-D5

DNG4

1

106PT526R

0

616Cu1.0

0

916R

074216R

74718R

VA

601

ULC

E05

05C

015F

R

22p

C62

1

u001416C

916Cu2.2

K74

706R

006PT

8ETAG

TUO_ETAG9

2DNG

1NI1

2NI4

53NI

1CN1121

2CN

61TUO

2TUO7

01NE_

GALF_3

306UG2RTM843PCN

806C

K1816R

3060n01

Hn072006L

DN

I

R62

3

L31BFSU006D

TABV

R62

4

0

21CN

33CN2CN

67

4CN1TUO

8

52TUO

PG

ND

9

NM4112FUN106LF

1NI1

2NI4

p22116C

u001316C

P2CIM

KOOH

RDIM

TUO_VT

XRT_BSU_SUBV

A_NICD

L_RAE

R_RAE

N2CIM

SUBV

TNA_MF

XR_TRAU_CCA_PPAXT_TRAU_CCA_PPA

E_HSALFPPV

NO_STC

1 4

3

TP36_BBR620

TP34_BBR621

TP35_BBC613, C614

5TP38_BBFB600, FB601

6TP39_BBR816, R817 7

TP39_BBR816, R817

7TP40_BBCN600

Page 124: LG KF750 KF755c Secret Service Manual

- 125 - LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.11.5 Headset MIC(Voice call, Video Telephony)

START

Insert Headset.Does the Headset icon display

on the main LCD?

Does it work properly ?? Try again from the start

END

YES

YES

YES

NO

NO

NO

Change the main Bíd

Does the level of R621under 0.5Volt ?

NO

Does the level of R621over 1.6Volt ?

YES

N0Change the main B,d

YES

Check the signal level

at U803 at the putting

Audio signal in MIC

Resolder U803and try again.If fail again,

Change the main Bíd

A few hundred of mV

of the signal measured at U803 ?

Resolder R620And try again from the start

3

1

2

4

5

6

Page 125: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 126 -

3

1

4

TP43_BBU803

TP42_BBR620

TP41_BBR621

Page 126: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 127 -

DA_TMR/MD_BSUTNI_TMR/PD_BSU

K022026R

8V1_EDDV

R62

1

0

516C

IND

816C

IND

+1DSH

7-1DSH

2+2DSH

-2DSH6

LES01

9CCV

8EO_

206UXMU03BSUSF

+D3

-D5

DNG4

1

616Cu1.0

5.6K

R61

7

R61

3D

NI

3060

R61

4D

NI

006PT

K1816R

K3.3

516R

CDA_ETOMER

AP

P_A

CC

AP

P_A

CC

TNI_ETOMER_11PG_PPA

ESNESFHP_71PG_CCA

PD_BSU

MD_BSU

IND

888R

K2.2

818R

u1u2.2918C

818CEC6

21DNG

52DNG

4CN

DDV31

TUOV

D181D4111R308U 406BF

2OCC

1

3

4

TP43_BBU803

TP41_BBR621

TP42_BBR620

Page 127: LG KF750 KF755c Secret Service Manual

- 128 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.12 Charger Trouble Shooting

• Charging Procedure

- Connecting TA and Charger Detection

- Control the charging current by AB3000

- Charging current flows into the battery

• Check Point

- Connection of TA

- Charging current path:

- Battery

• Trouble shooting setup

- Connect TA and battery to the phone

• Trouble Shooting Procedure

- Check the charger connecter

- Check the Charging current Path: Red Line( )

- Check the battery

W4/1

W4/1

DNG_TTAB

BA ot esolC

%12102

dnuorg enohPhtap nruter

riap laitnereffid a sa etuor3 niP ot esolC

Clo

se to

Pin

1

.nnoC yrettaB

2102%1

riap laitnereffid a sa etuor

915Cp74

0805R3060

1.0315R

TABV

p42315C

K74415R

0115R3060

105QJD119AIS

1D

2D

3D

4D

1G

2G

1S

2S

G1

G2

1 2 3

CN

500

0215R

905R

p42215C

520.0

300K

R50

6

33u

C51

7

21

005X

zHK867.23

D50

1

KD

S22

1E_R

TK

3A1_

C2

2

A2

C1 1

TABV

21K1LATX2LATX

11K

D_TABV1H

SUBV1J

01GN_FFOMIS

2KN_TSRS

KLCS3J3K

TADS

3F

21G+ESNESGF

11G-ESNESGF

ATADB4H

GERHC2E

1E+ESNESHC

2F-ESNESHC

OICD

21JZHK23

105PT

A_NICDNICD

n_TSRS

SUBV

KLCSTADS

KLCCTR

Main Battery Charging Path

Page 128: LG KF750 KF755c Secret Service Manual

- 129 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

start

Check the pin and batteryconnect terminals of I/O

connector

Connection OK? Change I/O connectorNO

YES

Change TANO

YES

Is it charging properly ENDYES

NO

Change the board

1

2

3

start

Check the pin and batteryconnect terminals of I/O

connector

Connection OK? Change I/O connectorNO

YES

Is the TA voltage 5.1V? Change TANO

YES

Is it charging properly

after changing Q500?END

NO

Change the board

1

2

3

Trouble Shooting - Charging

Page 129: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 130 -

W4/1

W4/1

DNG_TTAB

BA ot esolC

%12102

dnuorg enohPhtap nruter

riap laitnereffid a sa etuor3 niP ot esolC

Clo

se to

Pin

1

.nnoC yrettaB

2102%1

riap laitnereffid a sa etuor

915Cp74

0805R3060

1.0315R

TABV

p42315C

K74415R

0115R3060

105QJD119AIS

1D

2D

3D

4D

1G

2G

1S

2S

G1

G2

1 2 3

CN

500

0215R

905R

p42215C

520.0

300K

R50

6

33u

C51

7

21

005X

zHK867.23

D50

1

KD

S22

1E_R

TK

3A1_

C2

2

A2

C1 1

TABV

21K1LATX2LATX

11K

D_TABV1H

SUBV1J

01GN_FFOMIS

2KN_TSRS

KLCS3J3K

TADS

3F

21G+ESNESGF

11G-ESNESGF

ATADB4H

GERHC2E

1E+ESNESHC

2F-ESNESHC

OICD

21JZHK23

105PT

A_NICDNICD

n_TSRS

SUBV

KLCSTADS

KLCCTR

Main Battery Charging Path

Q501

Page 130: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 131 -

4.13 Checking Bluetooth Block

start

1. Check PMIC Block

2. Check BT IC Block

** BT - Bluetooth

<Top view><Bottom view>

PMIC

BT IC

Page 131: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 132 -

<Bottom view>

BT IC

PMIC

BT ANT pad

2.75V(C810) 2.75V(C809)

2.75V(C808)1.8V(C804)

BT CLK(R803)

1.8V(C503) 2.75V(C510)

<PMIC Block>

<BT IC Block>

Page 132: LG KF750 KF755c Secret Service Manual

saiV elpitluM esU

enalP dnuorG lacoL

BA ot esolC

)zHM001@(mho021 8061

J1NS121GP81MLB

V01

%02 ?A7.0 0.1*6.2*8.2

57V2_BMS_HDDV

Hu7.4005L

205Cu1

TABV

D50

0

RB

521S

-30

415Cu01

3060u1.0815C

56V2_CDDV

8V1_DARGIDV

505R

K2.2

u1.0515C

3060

0

705R

3060

005BF

5V1_DDDV

205PT

8V2_ADARV

5V2_FDDV

C_TABV

0

405R

57V2_KDDV

u1105C

905Cu1u1

015C705Cu1

57V2_GDDV

025Cu1

u1605C

u1805C

615Cu01

u2.2305C

Fn33115C

5V1_DDDV

TABV

8V1_EDDV

EROCV

KCUBSSV1B

11AC_DDV

21FD_DDVE_DDV

21D

9AF_DDVG_DDV

7A

21BH_DDV

K_DDV21M

B6

VIB

R

H11

TX

ON

KCUBV2B

C8

VD

DA

DC

2AKCUBDDV

11JPLDDV

21CA_DDV

KLCMIS5H

TADMIS2H

N_TSRMIS2J

CCVMIS1F

1AKCUBWS

SAIBP1D

1KCS4D

H10

SC

LS

DA

H12

LED

1A

6

LED

2D

6B

7LE

D3

ODLTXE11B

D8

GP

A0

A10

GP

A1

GP

A12

F10

GP

A2

B10

GP

A3

C9

D9

GP

A4

E9

GP

A5

GP

A6

F11

E11

GP

A7

B2R-0003BA

205U

B9

AD

OU

T

G4

AD

ST

R

D50

2

RB

521S

-30

EROCV

SU

B_L

ED

CCVMIS

KE

Y_L

ED

1K

EY

_LE

D2

MO

TO

R_P

WM

SH

AR

ED

_I2C

_SD

A

PUKCABV

TABV

8V2_ADARV

56V2_CDDV

8V1_DARGIDV

5V1_DDDV

8V1_EDDV

5V2_FDDV

57V2_GDDV

57V2_BMS_HDDV

57V2_KDDV

KLCMIS

TADMIS

n_TSRMIS

TX

_AD

C_S

TR

B

KLC_0S2I

SH

AR

ED

_I2C

_SC

L

AD

OU

T

HO

OK

RE

MO

TE

_AD

CT

ES

TO

UT

RT

EM

P

VB

AC

KU

P

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 133 -

4.13.1 Checking BT IC Block

112

11

2

TP02_BT1.8V(C503)

TP02_BT1.8V(C503)

TP01_BT2.75V(C510)

TP01_BT2.75V(C510)

Page 133: LG KF750 KF755c Secret Service Manual

- 134 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

About 2.75V?

Check voltage level at C510 with Oscilloscope

About 1.8V?

Check voltage level at C503 with Oscilloscope

Check Next Stage

No

No

Yes

Yes

Check PMIC (U502)

Check Veronica (U502)

11

2

Page 134: LG KF750 KF755c Secret Service Manual

- 135 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.13.2 Checking BT IC Block

112

3 4

5

C81

00.

1u

4D1CN2CN

7F8F

3CN4CN

4L

5CN5L6L

6CN

DLC_DDV_TB6E

LRTC_GER_TB4J

1LC_RVSR_TB2B3C

2LC_RVSR_TB8M

D_RVSR_TBMSD_RVSR_TB

1C2C

N_RVSR_TBFR_RVSR_TB

2M

DVH_TB7NR

807

0

57V2_KDDV

C80

90.

1u

2

11

TP05_BT1.8V(C804)

TP04_BT2.75V(C810)

TP03_BT2.75V(C809)

TP04_BT2.75V(C810)

TP07_BTBT CLK(R803)

TP03_BT2.75V(C809)

TP06_BT2.75V(C808)

Page 135: LG KF750 KF755c Secret Service Manual

- 136 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

408Cu1.0

6H1GIDSSV_TB

7H2GIDSSV_TB3GIDSSV_TB

8H8K

4GIDSSV_TB8L

5GIDSSV_TB

__

6MA_OIV_TBB_OIV_TB

9J

C_OIV_TB3N5N

D_OIV_TBE_OIV_TB

8G

1ANASSV_TB1D2D

2ANASSV_TB3ANASSV_TB

3E1F

1JNFR_TBPFR_TB

1K

8V1_EDDV

008BF06

808Cu1.0

FR_TB_SSV

1FRSSV_TB1H1L

2FRSSV_TB3FRSSV_TB

2J2K

4FRSSV_TB

_3H

11ANASSV_TB4H

21ANASSV_TB

1TSET_TB2H2G

2TSET_TB

1AVH_TB2L3D

2AVH_TB3AVH_TB

1E2E

4AVH_TB4E

5AVH_TB

GRP_FA_TB6G

ANA_TB_SSV

108PT

IND108C008C

IND PUEKAW_TB9L

6JSTR_TRAU_TB

DXR_TRAU_TB9H

7GDXT_TRAU_TB

6MAOIVTB

NI_KLC_FER_TB6F7K

NTESER_TB

1JNFR_TBPFR_TB

1K

STC_TRAU_TB6K

KLC_PL_TB9K

108U7J

1_TUO_QER_KLC_TB

3952CLTS308R

0

1TAD_IPS_TB_52PG_CCA

KLC_IPS_TB_62PG_CCA

KLC_TBKLCCTR

n_2TUOSER

3

4

5

TP05_BT1.8V(C804)

TP06_BT2.75V(C808)

TP07_BTBT CLK(R803)

Page 136: LG KF750 KF755c Secret Service Manual

- 137 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

BT IC Output(C803)

1.8V, 2.75V ?

Check frequency atBT CLK (R803)with Oscilloscope

Check Next Stage

No

No

Yes

Check VCXO(X100) block26MHz ?

Check PMIC Block

Check voltage level atC804, C808, C809 and C810with Oscilloscope

Check Power levelat BT IC Output (C803) with Spectrum Analyzer

Range-2 ~ 2dBm ?

No

Yes

Change BT Chip (U801)

Yes

66

6

5

11 2

3 4

FR_TB_SSVFR_TB_SSV

1C3407-TB054212AED008LF5

1PB

4CD_PB2PB

2

3G

16

G2

1PB_U

C80

31n

H

208CHn9.3

208TUO

008LHn3.3

108Lp2.1

FR_TB_SSV

308TUO

108TUO

TP08_BTBT IC Output(C803) TP08_BT

BT IC Output(C803)

Page 137: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 138 -

4.14 RF Component

(Top)

U100

U102

X100

FL102,FL101,FL100

(Bottom)

SW100

SW101

WCDMA Tx SAW FilterFL201Antenna ConnectorSW101

WCDMA DuplexerFL202

WCDMA Rx SAW FilterFL200RF Test ConnectorSW100

WCDMA IsolatorIS200GSM900 Rx SAW FilterFL102

WCDMA Power CouplerN200PCS Rx SAW FilterFL101

WCDMA Transceiver(RF3100)U203DCS Rx SAW FilterFL100

WCDMA Power DetectorU202GSM / EDGE Transceiver(RF3000)U102

WCDMA DC/DC ConverterU201GSM900/DCS/PCS/EDGE PA

+ Ant. SWU100

WCDMA PAU20026MHz CrystalX100

DescriptionReferenceDescriptionReference

U203

U200

U202

U201

IS200

FL202

N200

FL200

FL201

Figure 4-1. RF component

Page 138: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4. TROUBLE SHOOTING

- 139 -

4.15 Procedure to check

start

Oscilloscope setting

1. CheckPower Source Block

2. CheckVCXO Block

Agillent 8960 : Test mode(WCDMA)Ch. 9750 (Uplink)Ch. 10700 (Downlink)

4. CheckWCDMA Block

Agillent 8960 : Test mode(GSM)Ch. 62, P.L. 7 level settingCh. 62, -60dBm setting

5. CheckGSM Block

Redownload SW, Cal

3. CheckAnt. SW Module

Page 139: LG KF750 KF755c Secret Service Manual

- 140 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.16 Checking Common Power Source Block

Step 1Power Source Block

Step 2GSM PAM Block

Step 4Checking VCC

(Top)

(Bottom)

Step 3WCDMA PAM Block

Figure 4-2. Common Source Block

Page 140: LG KF750 KF755c Secret Service Manual

- 141 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.16.1 Step 1

3.7V OK?Step 1

Check Point (C517) in Power Source Block

To Check Power source to Check if main power source input or not

Yes

No

Proceed to the Step 2

3.7V OK?

No

Yes

Check The PowerSupply

Short? No

Yes

Soldering Check Component(CN500)

In Power Source Block

Check Point (CN500)

in Power Source BlockTo Check Power source

Change Board

Check (C517 & CN500)

in Blockto check inner line connectionFrom CN500 to C517

Check point(C517)

Check point(CN500)

Figure 4-3. Power Source Block

4/1

DNG_TTAB

%1102

dnuorg enohPhtap nruter

Clo

se to

Pin

1

.nnoC yrettaB

G1

G2

1 2 3

CN

500

300K

R50

6

33u

C51

7

D50

1

KD

S22

1E_R

TK

3A1_

C2

2

A2

C1 1

TABV

TP02_RF(C517)

TP01_RF(CN500)

TP02_RF(C517)

TP01_RF(CN500)

Page 141: LG KF750 KF755c Secret Service Manual

- 142 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.16.2 Step 2

Step 2Check VBATT (C102, C103)in GSM PAM Block to Check if main powersource input or not

Check (C517 & C102,C103)

in Blockto check inner line connectionFrom C517 to C102, C103

Check Point (C517)

in Power Source BlockTo Check Power source

3.7V OK?

Yes

No

Proceed to the Step 3

3.7V OK? No

Yes

Check The PowerSupply

Short? No

Yes

Soldering Check Component(CN500)

In Power Source Block

Change Board

C103

C102

GSM PAM

Figure 4-4. Step 2 : GSM PAM Block

p22701C

801CIND

815-SMK001WS

AC

G1

G2

201Cu01n01

101C

TABV

5161

7DNG8DNG

7181

9DNG

32NI_MSG

2EDOM

DNGP92

DVSR3

1XR76

2XR3XR

54

4XR

NEXT1

52CPAV

TTABV62

1AMDCW01

8TNA1SB

8272

2SB

12NI_SCP_SCD

91DNG

01DNG9102

11DNG21DNG

2231DNG

42

2DNG1121

3DNG4DNG

3141

5DNG

6DNG

001U91577YKS

u01301C001C

p22

009XR

0081XR

058XR

0091XR

1_DNAB_FRW

TP03_RF(C102,C103)

TP03_RF(C102,C103)

Page 142: LG KF750 KF755c Secret Service Manual

4.16.3 Step 3

3.7V OK?

Step 3Check VBAT (C201, C202)in WCDMA PAM Block Yes

No

See the Next Page

3.7V OK?

No

Yes

Check the PowerSupply

Short ?

No

Yes

Soldering Check Component(CN500)

In Power Source Block

Check Point (C517)

in Power Source BlockTo Check Power source

Change Board

Check (C517 & C201, C202)in Block ,to check inner line connectionFrom C517 to C201, C202

WCDMA PAM

DC/DCConverter

C201C202

802CIND

u10.0202C

TABV

102Cu01

LT8023ML102U

NE1C

BF3C

3ADNGP

NIVP1A

3BDNGS

WS2A

2CNOCV

DDV1B

NE_CDCDW

CCV_APW

- 143 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 4-7. Step 3 :WCDMA PAM Block

(C202,C201)TP04_RF

TP04_RF(C202, C201)

Page 143: LG KF750 KF755c Secret Service Manual

- 144 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.16.4 Step 4: Checking VCC

2.8V OK?No

Yes

1.8V OK?

Yes

No

Check the AB3000

Check the AB3000Check Point

VDD_E (C503)

Common Input Power is OKSee The Next Part

Check Point VDD_A (C501)

(Bottom)

AB3000

C501 (VDD_A)

C503 (VDD_E)

Figure 4-5-1. Power for Radio ASIC

Figure 4-5-2. Schematic (Power)

205Cu1

0

405R

u1105C

u2.2305C

21FD_DDVE_DDV

21D

21CA_DDVODLTXE

11BAB3000

VRADA_2V8 (RF3000 analog)

VDIGRAD_1V8 (RF3000 digital)

TP05_RFC501 (VDD_A)

TP05_RFC501 (VDD_A)

TP06_RFC503 (VDD_E)

TP06_RFC503 (VDD_E)

Page 144: LG KF750 KF755c Secret Service Manual

- 145 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.17 Checking VCXO Block

The reference frequency (26MHz) from U102 (GSM Transceiver RF3000) is also used in WCDMA TXpart and BB part. Therefore, 3 test points in the following figure should be checked.

Phone

Oscilloscope

Notebook to send TP command

U102X100Crystal

GSM Transceiver

(RF3000)

WCDMA Transceiver

(RF3100)

U203

Figure 4-6. VCXO block

Figure 4-7. Connection for Checking VCXO Block

Page 145: LG KF750 KF755c Secret Service Manual

- 146 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Check 1. Crystal and RF3000(GSM Transceiver) part

If you already check this crystal part, you can skip check 1

R113GSM Transceiver

(RF3000)

X100Crystal

Figure 4-8-1. Test Point (Crystal Part)

Figure 4-9. 26MHz at R113

R10

9

100K

R0AQ-AFK00062-32-XSK

001X

zHM62

2134

311RK001

TUOTSET9

WB

CLK

11 13X

ON

XO

P14 17

01QERKICM

16M

CLK

8KLC

GN

DA

1112

GN

DA

1215

211RK001

001PT

K001

411R

KLCW

KLC_LRTC_FR

QERKLCM

KLCM

TUOTSET

Figure 4-8-2. Schematic (Crystal Part)

TP07_RFR113

TP07_RFR113

Page 146: LG KF750 KF755c Secret Service Manual

- 147 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Check 2. 26MHz at WCDMA TX part

C229

GSM Transceiver

(RF3000)

WCDMA Transceiver

(RF3100)

X100Crystal

Figure 4-10-1. Test point (26MHz at TX part)

Figure 4-11. 26MHz at C229

p2.8922C

VG

AC

TL

11 16N

C4

RE

FIN

1513C

LKD

ATA

12

EN

14

402PT

KLC_LRTC_FR

ATAD_LRTC_FR

BRTS_LRTC_FR

KLCW

Figure 4-10-2. Schematic (26MHz at TX part)

TP08_RFC229

TP08_RFC229

Page 147: LG KF750 KF755c Secret Service Manual

- 148 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Check 3. 26MHz at BB part

R114

GSM Transceiver

(RF3000)

Figure 4-12-1. Test point (26MHz at BB part)

Figure 4-13. 26MHz at R114

R10

9

100K

R0AQ-AFK00062-32-XSK

001X

zHM62

2134

311RK001

TUOTSET9

WB

CLK

11 13X

ON

XO

P14 17

01QERKICM

16M

CLK

8KLC

GN

DA

1112

GN

DA

1215

211RK001

001PT

K001

411R

KLCW

KLC_LRTC_FR

QERKLCM

KLCM

TUOTSET

61Y0KLCSYS

41WKLCM

100K

R30

5

TP

301

8V1_EDDV

0KLCSYSKLCM

Figure 4-12-2. Schematic (26MHz at BB Part)

MCLK

Baseband(DB3150)

MCLK

TP09_RFR114

TP09_RFR114

Page 148: LG KF750 KF755c Secret Service Manual

- 149 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Check R113 No

Refer to Figure 4-8

Yes

Check R114 NoRefer to Figure 4-10

Yes

VCXO part has a problem.Changing XTAL or U102

Checking 126MHz at VCXO

Checking 226MHz at MCLK

VCXO part is O.K.Check next stage

VCXO part has a problem.Changing XTAL or U102

Page 149: LG KF750 KF755c Secret Service Manual

- 150 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.18 Checking Front End Module Block

Antenna

Switch Module

(+ GSM/EDGE PA)

Antsw0

Antsw1

Antsw2

Figure 4-12. Front End Module Block (Bottom and Top)

1C

401Cp22

C10

9D

NI

501Cp22

5161

7DNG8DNG

7181

9DNG

32NI_MSG

2EDOM

DNGP92

DVSR3

1XR76

2XR3XR

54

4XR

NEXT1

52CPAV

TTABV62

1AMDCW01

8TNA1SB

8272

2SB

12NI_SCP_SCD

91DNG

01DNG9102

11DNG21DNG

2231DNG

42

2DNG1121

3DNG4DNG

3141

5DNG

6DNG

001U91577YKS

001Cp22

p22601C

0WSTNA

SCPSCD_XT

MSGE_XT

1WSTNA

CPAV

2WSTNA

Antenna Switch Module (+ GSM/EDGE PA)

TP10_RF

TP10_RF

Page 150: LG KF750 KF755c Secret Service Manual

- 151 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.19 Checking Front End Module Block input logic

4.19.1 Mode Logic by TP Command

Page 151: LG KF750 KF755c Secret Service Manual

- 152 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LHLWCDMA

HHHPCS Rx

LHHDCS Rx

HLHEGSM Rx

HHLPCS Tx

HHLDCS Tx

HLLEGSM Tx

Antsw2Antsw1Antsw0Mode

Table 4-1. Front End module Logic

Page 152: LG KF750 KF755c Secret Service Manual

- 153 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.19.2 Checking Switch Block power source

Before Checking this part, must check common power source(through Veronica) part

TP Command

MODE=0SWRX=64,2

Open?

High? OK? Resoldering

Check each modeBy TP command Change the Board

No

No No

Yes

Yes Yes

Check soldering(C104)

Check SolderingIt is necessary to check short condition.Using Tester, Check 3 capacitorsANTSW0(C104),ANTSW1(C106)ANTSW2(C105)

Check ANTSW0(C104)To check Switch input power source

Page 153: LG KF750 KF755c Secret Service Manual

4.20 Checking WCDMA Block

- 154 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

start

1. CheckVCXO Block

4. CheckRF TX Level

3. CheckControl Signal

Re-download SW, Cal

2. CheckFront End Module

6. CheckRF RX Level

5. CheckPAM Block

(Top)

(Bottom)

SW100RF switch

U203WCDMA TransceiverRF3100

U200WCDMAPAM

Duplexer / Isolator / DCDC

Figure 4-27. WCDMA Block

Page 154: LG KF750 KF755c Secret Service Manual

- 155 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.20.1 Checking VCXO Block

Refer to 4.16

4.20.2 Checking Ant. SW module

Refer to 4.17

4.20.3 Checking Control Signal

First of all, control signal should be checked. (data, clk, strobe)

Figure 4-28-1. Test points (Control Signal)

PIN14 (STROBE) PIN13 (CLK)PIN12 (DATA)

U203WCDMA

Transceiver(RF3100)

Page 155: LG KF750 KF755c Secret Service Manual

- 156 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

p2.8922C

VG

AC

TL

11 16N

C4

RE

FIN

1513C

LKD

ATA

12

EN

14

402PT

KLC_LRTC_FR

ATAD_LRTC_FR

BRTS_LRTC_FR

KLCW

Figure 4-28-2. Schematic (Control Signal)

Phone

Oscilloscope

Notebook to send TP command

Figure 4-29. Connection for Checking Control Signal

RF3100

Page 156: LG KF750 KF755c Secret Service Manual

- 157 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

PIN14 (STROBE)

PIN13 (CLK)

PIN12 (DATA)

Similar ?

Control Signal is O.K.Check next stage

Download the SW

Check PIN12,PIN13, andPIN14. Check shape and pk-pk level Refer to Figure 4-30

Yes

No

If signal is not OK even after downloading, Change the U203

TP CommandMODE=4WTXC=10700, 1,890,903,542,557

PIN14 (STROBE)

PIN13 (CLK)

PIN12 (DATA)

Figure 4-30. Control Signal

Page 157: LG KF750 KF755c Secret Service Manual

- 158 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.20.4 Checking RF TX Level

Check 1SW100RF test connector

Check 3C226Duplexer Output

Check 6C207PAM Input

Check 4IS200Isolator Output

Check 5IS200Isolator Input

Check 2C107FEM Output

(Bottom)(Top)

Figure 4-31. Test point (RF TX Level)

Phone

Spectrum Analyzer

Notebook to send TP command

Fig. 4-32 Connection for Checking RF TX Level

TP17_RF

TP16_RF

TP13_RF

TP12_RF

TP15_RF

TP14_RF

Page 158: LG KF750 KF755c Secret Service Manual

- 159 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

p22701C

801CIND

815-SMK001WS

AC

G1

G2

5161

7DNG8DNG

7181

9DNG

32NI_MSG

2EDOM

DNGP92

DVSR3

1XR76

2XR3XR

54

4XR

NEXT1

52CPAV

TTABV62

1AMDCW01

8TNA1SB

8272

2SB

12NI_SCP_SCD

91DNG

01DNG9102

11DNG21DNG

2231DNG

42

2DNG1121

3DNG4DNG

3141

5DNG

6DNG

001U91577YKS

009XR

0081XR

058XR

0091XR

1_DNAB_FRW

11DNG

42DNG3DNG

984DNG

65DNG

36DNG

7XR

XT5

00B0BE59G1YZYAS202LF2

TNA

502LAN

p22622C

1_DNAB_FRW

1_DNAB_XRW

1_DNAB_XTW

723-B9159G181CDL

TUO_C3

1DNG52

2DNG

NI1

TUO_M6

4ETANIMRET

002N

p22p01602C

402C

312CIND

p65

702C

302Cp0001

Hn2.8202L

AP_CCV

112CIND

502Cp0001

2DNG1DNG

4DNG3DNGTUONI

000BCD59G102SEC002SI

47177YKS002U

ELBANE2

61DNG

2DNG7

3DNG9

DNGP11

4TUO_FRNI_FR

8

5SAIBV

11CCV

012CCV

3LORTNOCV

R20

0

47

TABV

002LHn1

IND902C

IND012C

u10.0002C

ESNES_WOPW

SAIB_APW

NE_1_DNAB_XTW

I_DNAB_DOMXTW 1_DNAB_XTW

TP13_RFC107FEM Output

TP14_RFC226Duplexer Output

TP17_RFC207PAM Input

TP16_RFIS200Isolator Input

TP15_RFIS200Isolator Output

TP12_RFSW100RF test connector

Page 159: LG KF750 KF755c Secret Service Manual

- 160 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Fig. 4-33-1 Output Level at RF testconnector (SW100)

Fig. 4-33-2 Output Level at FEM Output(C107)

Fig. 4-33-3 Output Level at Duplexer(C226)

Fig. 4-33-1 Output Level at RF testconnector (SW100)

Fig. 4-33-2 Output Level at FEM Output(C107)

Fig. 4-33-3 Output Level at Duplexer(C226)

Fig. 4-33-4 Output Level at IsolatorOutput (IS200.2.Out )

Page 160: LG KF750 KF755c Secret Service Manual

- 161 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Fig. 4-33-5 Output Level at Isolator Input(IS200.3. In)

Fig. 4-33-6 Output Level at PAM Input(C207)

Fig. 4-33-7 Output Level at RF3100(Ylva)Output (C218)

Page 161: LG KF750 KF755c Secret Service Manual

- 162 -

4. TROUBLE SHOOTING

To verify that the phone fulfils requirments on maximum output power.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Check 1About 22~23dBm?

RF TX Level is OKCheck next stage

Check output power at the SW100 with antenna Cable. Refer to Figure 4-33-1

No

Yes

Set the FDD Test of the Agillent 8960Set the Maximum Power

YesThe SW100 has any problem.Change the SW100

Check 2About 15dBm?

Check the power at the C107 with probe. Refer to Figure 4-33-2

No

YesThe U100 has any problem.Change the U100

Check 3About 19dBm?

Check the power at the C226 with probe. Refer to Figure 4-33-3

No

YesThe FL202 has any problem.Change the FL202

Check 4About 19dBm?

Check the power at the IS200 Out with probe. Refer to Figure 4-33-4

No

YesThe IS200 has any problem.Change the IS200

Check 5About 17dBm?

Check the power at the IS200 In with probe. Refer to Figure 4-33-5

No

YesThe U200 has any problem.You have to check PAM block.

Check 6About -6dBm?

Check the power at the C207 with probe. Refer to Figure 4-33-6

The U203 will be not operated.Change the board

No

TP CommandMODE=4WTXC=10700, 1,890,903,542,557TFTI=10700

Page 162: LG KF750 KF755c Secret Service Manual

- 163 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.20.5 Checking PAM Block

DC/DC converter

Duplexer Output(C226)

WCDMAPAM

PAM Input(C207)

VCC_PA(C212)

WPA_BIAS(C206)

Figure 4-34. Test points of WCDMA TX PAM block

TP18_RFDuplexer Output

(C226)

TP19_RFPAM Input(C207)

TP20_RFWPA_BIAS(C206)

TP21_RFVCC_PA(C212)

Page 163: LG KF750 KF755c Secret Service Manual

- 164 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

11DNG

42DNG3DNG

984DNG

65DNG

36DNG

7XR

XT5

00B0BE59G1YZYAS202LF2

TNA

502LAN

p22622C

1_DNAB_FRW

1_DNAB_XRW

1_DNAB_XTW

AP_CCV

802CIND

u10.0202C

TABV

102Cu01

L201

3.3u

H

212Cu7.4

LT8023ML102U

NE1C

BF3C

3ADNGP

NIVP1A

3BDNGS

WS2A

2CNOCV

DDV1B

NE_CDCDW

CCV_APW

p22p01602C

402C

312CIND

p65

702C

302Cp0001

Hn2.8202L

AP_CCV

112CIND

502Cp0001

47177YKS002U

ELBANE2

61DNG

2DNG7

3DNG9

DNGP11

4TUO_FRNI_FR

8

5SAIBV

11CCV

012CCV

3LORTNOCV

TABV

002LHn1

IND902C

IND012C

u10.0002C

SAIB_APW

NE_1_DNAB_XTW

I_DNAB_DOMXTW

TP18_RFDuplexer Output(C226)

TP20_RFWPA_BIAS(C206)

TP19_RFPAM Input(C207)

TP21_RFVCC_PA(C212)

Page 164: LG KF750 KF755c Secret Service Manual

- 165 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Yes

No

TP Command-mode =4

- WTXC=10700, 1,890,903,542,557

23dBm ?Check Duplex output

(C226)To Check PAM

output

WCDMA PAM is OKSee the Next page

Level< -

10dBm?

NoDownload the SW

& Calibrate

Level>2dBm

Check C207To Check PAM Input level

Check the WCDMA RF Tx Chip (Ylva)

Yes

Yes

1.3V ?

Check C206 To Check PAM control signal from RF3100 (Ylva)(WPA_BIAS)

Check the RF3100to WCDMA PAM Signal line

3.2V ?Check C212To Check PAM VCC BIASfrom DC/DC converter(VCC_PA)

No

No

No

Change the DC/DC

Yes

Yes

Change The PAM

Page 165: LG KF750 KF755c Secret Service Manual

- 166 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.20.6 Checking RX I,Q

To verify the RX path you have to check the pk-pk level and the shape of the RX I,Q.

WRX_I_P (R208)

WRX_I_N (R207)

WRX_Q_P(R206)

WRX_Q_N(R205)

WCDMA Transceiver

(RF3100)

p2.8922C

022

502R

8BIXTAQXT

901

BQXT

41_XT

XROLCCV42

6XTOLCCV

22DDV

VG

AC

TL

11 16N

C4

5CN32

526CN7CN

62

8CN82

RE

FIN

15 17R

XIA

18R

XIB

19R

XQ

AR

XQ

B20

12TST

AIXT7

13C

LKD

ATA

12

EN

14

72NI_1ANL

2CN3

3CN5

NH5916MO_0013FR

302U

022

702R

IND722C

402PT

022

802R

022

602R

N_Q_XRW

P_Q_XRW

N_I_XRW

P_I_XRW

KLC_LRTC_FR

ATAD_LRTC_FR

BRTS_LRTC_FR

KLCW

Figure 4-35. RF3100, WCDMA Transceiver

TP22_RF

Page 166: LG KF750 KF755c Secret Service Manual

- 167 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Figure 4-36-1. RX I,Q signal (CW:2142MHz)

Figure 4-36-2. RX I, Q signal

Page 167: LG KF750 KF755c Secret Service Manual

- 168 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

About 130mVp-p? Change RF3100 (U203)

Check the pk-pk level at R205,R206, R207 and R208 With Oscilloscope.Refer to Figure 4-36-1

Yes

No

Set the CW Mode of the Agillent8960Feed a CW signal at 2142MHzSet the RX Continuous mode

Check the Mean level at R205,R206, R207 and R208 With Oscilloscope.Refer to Figure 4-36-1

Yes

No

Check the frequency at R205,R206, R207 and R208 With Oscilloscope.Refer to Figure 4-36-2

Yes

No

Verify whether the signal was similar as Figure4-36-2 with Oscilloscope.

Yes

No

About 160mV?

About 2MHz?

Similar?

Check Next Stage

Change RF3100 (U203)

Change RF3100 (U203)

Change RF3100 (U203)

TP CommandMODE=4WRXC=10700

Page 168: LG KF750 KF755c Secret Service Manual

- 169 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.21 Checking GSM Block

start

2. CheckVCXO Block

5. CheckRF TX Path

4. CheckControl Signal

Re-download SW, Cal

3. CheckFEM Module

6. CheckRF RX Path

1. CheckVRADA_2V8

VDIGRAD_1V8

(Top)

(Bottom)

U100GSM/EDGE PAM (+Ant. SW)

U102GSM/EDGETransceiverRF3000

SW100RF switch

Figure 4-13. GSM Block

Page 169: LG KF750 KF755c Secret Service Manual

- 170 -

4. TROUBLE SHOOTING

4.21.1 Checking Regulator Circuit

Refer to 4.15 Checking Power Source block

IF you already check this point while checking power source block (4.15), You can skip this test.

4.21.2 Checking VCXO Block

Refer to 4.16 Checking VCXO block

IF you already check this point while checking VCXO block (4.16), You can skip this test.

4.21.3 Checking Front End Module

Refer to 4.18 Checking Ant. SW Module

IF you already check this point while checking Ant. SW module (4.18), You can skip this test.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 170: LG KF750 KF755c Secret Service Manual

- 171 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.21.4 Checking Control Signal

Test Program Script

MODE=0

SWTX=1,64,7

RF_CTRL_STRB (PIN6)

RF_CTRL_CLK (PIN8)

RF_CTRL_DATA(PIN7)

RF3000

Figure 4-14. Test points of RF control signals

32R

X19

00P

52N008XRP008XR

62

92N009XR

82P009XR

6RTS

TUOTSET9

4BHXT

TX

LB39

42ACCV

18V

CC

D

WB

CLK

11 13X

ON

XO

P14

38G

ND

A2

GN

DA

336

GN

DA

433

5ADNG1

6ADNG03

7ADNG3

728ADNG

9ADNG5

17G

ND

D

01QERKICM

16M

CLK

37N

C

PG

ND

41 35R

X18

00N

RX

1800

P34 31

RX

1900

N

201UNH1916MO_0003FR

2DOMMA

8KLC

ATAD7

DA

TAA

20D

ATA

B19

22CATAD

12RTSATAD

40G

ND

A1

01ADNG32

GN

DA

1112

GN

DA

1215

001PT

TP22_RF

Page 171: LG KF750 KF755c Secret Service Manual

- 172 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Similar?

Check PIN6,PIN7,PIN8 of RF3000.Check if there is any Major difference.Refer to Figure 4-15

Yes

NoRe-download SWShort?

Yes

No

Change the board

Control signal is OK.See next page to check

Figure 4-15. GSM RF Control signal

Page 172: LG KF750 KF755c Secret Service Manual

- 173 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.21.5 Checking RF Tx Path

A. GSM Tx path Level

Figure 4-16. GSM/DCS/PCS Tx Path Level

Page 173: LG KF750 KF755c Secret Service Manual

- 174 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

(Top) (Bottom)

U100GSM/EDGE

PAM (+Ant. SW)

U102RF3000

Figure 4-17. Test Points of GSM/DCS/PCS Tx Path

Page 174: LG KF750 KF755c Secret Service Manual

- 175 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

B. GSM Tx Output Level Check

(Bottom)

p22701C

801CIND

815-SMK001WS

AC

G1

G2

5161

7DNG8DNG

7181

9DNG

32NI_MSG

2EDOM

DNGP92

DVSR3

1XR76

2XR3XR

54

4XR

NEXT1

52CPAV

TTABV62

1AMDCW01

8TNA1SB

8272

2SB

12NI_SCP_SCD

91DNG

01DNG9102

11DNG21DNG

2231DNG

42

2DNG1121

3DNG4DNG

3141

5DNG

6DNG

001U91577YKS

009XR

0081XR

058XR

0091XR

1_DNAB_FRW

TP23_RFSW100RF test connector

TP23_RFSW100RF test connector

Page 175: LG KF750 KF755c Secret Service Manual

- 176 -LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Check GSM/DCS/PCS output power at .Check if there is any Major difference.Refer to Figure 4-42.GSM900>32dBmDCS>29dBmPCS>29dBm

NoSee Next page to check Tx pathSimilar?

Yes

GSM900/DCS/PCS Tx path OK. See Chapter 4.8.6 to check Rx path

v Agilent 8960 Setting: GSM BCH+TCH Mode

v Oscilloscope Setting

2. DCS TxMODE=2SWTX=1,699,0

Test Program Script

1. GSM900 TxMODE=0SWTX=1,64,5

3. PCS TxMODE=1SWTX=1,661,0

Figure 4-18. GSM900/DCS/PCS Tx Level at

Page 176: LG KF750 KF755c Secret Service Manual

- 177 - LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

C. GSM RF Transceiver Check

GSM900/DCS/PCS>5dBm

See Next page to check Tx path

Check GSM RF Transceiver Output power at .

No

Yes

Redownload SW

DCS/PCS Tx(R106)

GSM900 Tx(R101)

`

(U102)

RF3000

Figure 4-19. GSM900/DCS/PCS Transceiver (RF3000)

R10

9

100K

220

R10

8

Hn6.5201L

p6.5521C

R10

4

300

R10

7

220

F69G1BEFAS101LF

G1 2

G25 IN

1O

1 3

O24

32R

X19

00P

52N008XRP008XR

62

92N009XR

82P009XR

6RTS

TUOTSET9

4BHXT

TX

LB39

42ACCV

18V

CC

D

WB

CLK

11 13X

ON

XO

P14

38G

ND

A2

GN

DA

336

GN

DA

433

5ADNG1

6ADNG03

7ADNG3

728ADNG

9ADNG5

17G

ND

D

01QERKICM

16M

CLK

37N

C

PG

ND

41 35R

X18

00N

RX

1800

P34 31

RX

1900

N

201UNH1916MO_0003FR

2DOMMA

8KLC

ATAD7

DA

TAA

20D

ATA

B19

22CATAD

12RTSATAD

40G

ND

A1

01ADNG32

GN

DA

1112

GN

DA

1215

G1 2

G25 IN

1O

1 3

O24

Hn7.2

601L

00F0AF48G1BEFAS001LF

001PT

p6.5321C221C

p6.5

300

R10

3

131Cp7.2p3.3

031C

p6.5621C

Hn6.5501L

81

101R

601R

42

MSGE_XT

SCPSCD_XT

CPAV

ATAD_LRTC_FR

QERKLCM

BRTS_LRTC_FR

TUOTSET

GSM900 Tx(R101)

DCS/PCS Tx(R106)

TP24_RF

TP24_RF

Page 177: LG KF750 KF755c Secret Service Manual

- 178 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

D. GSM PAM Check

GSM/EDGE PAM

(+Ant. SW)

(Top) (Bottom)

GSM900/DCFS/PCSPAM Output (C107)

Vapc(U100 pin 25)

Figure 4-20. Test points of GSM900/DCS/PCS Tx

p22701C

1CD

5161

7DNG8DNG

7181

9DNG

32NI_MSG

2EDOM

DNGP92

DVSR3

1XR76

2XR3XR

54

4XR

NEXT1

52CPAV

TTABV62

1AMDCW01

8TNA1SB

8272

2SB

12NI_SCP_SCD

91DNG

01DNG9102

11DNG21DNG

2231DNG

42

2DNG1121

3DNG4DNG

3141

5DNG

6DNG

001U91577YKS GSM900/DCFS/PCSPAM Output (C107)

Vapc (U100 pin 25)

TP25_RF TP26_RF

TP25_RF

TP26_RF

Page 178: LG KF750 KF755c Secret Service Manual

- 179 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

GSM900:33.0dBmDCS: 31.0dBm

Yes

Changing GSM PAM(U100)

Check GSM900/DCS/PCS PAM output power at .

GSM Tx path OK. See Next page to check

Check Vapc level at .Check if there is any Major difference.Refer to Figure 4-20.

Yes

NoRedownload SW, CalGSM900>1.5 V?

DCS/PCS>1.3 V?

No

Page 179: LG KF750 KF755c Secret Service Manual

- 180 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

4.21.6 Checking RF Rx Path

A. GSM Rx path Level

GSM900 : -50dBm

DCS : -50dBm

PCS : -50dBM

GSM900 : -51.5dBm

DCS/PCS : -51.7dBm

`

Figure 4-21. GSM/DCS/PCS Rx Path Level

Page 180: LG KF750 KF755c Secret Service Manual

- 181 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

2. DCS/PCS RxMODE=2(DCS),1(PCS)SWRX=699,2

Test Program Script

1. GSM900 RxMODE=0SWRX=64,2

v Agilent 8960 SettingCW ModeGSM900 : -50dBm@Ch65(948MHz)DCS : -50dBm@Ch700(1842.8MHz)PCS : -50dBm@Ch700(1967.8MHz)

v Oscilloscope Setting

(Top) (Bottom)

GSM/EDGE PA

U100

GSM Transceiver

U102

DCS Rx

PCS Rx

GSM Rx

Figure 4-22. GSM900/DCS/PCS Rx path

TP28_RF

TP27_RF

Page 181: LG KF750 KF755c Secret Service Manual

- 182 -

4. TROUBLE SHOOTING

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

B. GSM RF Level Check

GSM/EDGE PAU100

GSM Transceiver

U102

DCS Rx(C112)

PCS Rx(C114)

GSM Rx(C120)

Figure 4-23. Test Points of GSM900/DCS/PCS Rx

p65721C

1LAN

p22021C

p21121C

Hn81301L

p21421C

Hn6.5201L

p6.5521C

401LHn01

00F0AF69G1BEFAS101LF

G1 2

G25 IN

1O

1 3

O24

32R

X19

00P

52N008XRP008XR

62

92N009XR

82P009XR

6RTS

4BHXT

TX

LB39

42ACCV

38G

ND

A2

GN

DA

336

GN

DA

433

5ADNG1

6ADNG03

7ADNG3

728ADNG

9ADNG5

37N

C

PG

ND

41 35R

X18

00N

RX

1800

P34 31

RX

1900

N

201UNH1916MO_0003FR

2DOMMA

8ATAD

7

40G

ND

A1

32

001LHn01

21G

2G

5

NI11O

3

2O

4

921C

201LF

00F0LFM249BEFAS

p01231C

p01

21G

2G

5

NI1

1O

3

2O

4

301LF

00F0MFM188BEFAS

G1 2

G25 IN

1O

1 3

O24

00F0AF48G1BEFAS001LF

p22411Cp22311C

p6.5321C221C

p6.5

p22911C

Hn01101L

701LHn81

p6.5621C

p22211C

Hn6.5501L

p22511C

0081XR

0091XR

009XR

CPAV

DCS Rx(C112) PCS Rx

(C114)

GSM Rx(C120)

TP28_RF

Page 182: LG KF750 KF755c Secret Service Manual

- 183 -

4. TROUBLE SHOOTING

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

v Agilent 8960 SettingCW ModeGSM900 : -50dBm@Ch65(948MHz)DCS : -50dBm@Ch700(1842.8MHz)PCS : -50dBm@ch700(1967.8MHz)

GSM Rx path OK.

Check GSM900/DCS/PCS Rx signal level at .

Yes

GSM900:-51.5dBmDCS/PCS:-51.7dBm

Change Ant. SW module(U100)

No

Page 183: LG KF750 KF755c Secret Service Manual

- 184 -

5. DOWNLOAD

5. DOWNLOAD

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

5.1 LGDP2

5.1.1 File map

C:\DOWNLOAD- LGDP2_V34_UMTS_KF750.exe (Execution File)- meflash.dll (EMP DLL File)- LDR Files (Loader Files)

CXC1721606_A2_P6C_ACC_Pre.ldr,CXC1721607_A2_P6C_APP_Pre.ldr,CXC1721610_A2_P6C_ACC_Production.ldr,CXC1724028_1A2_P6C_APP_Large_Production.ldr

C:\DOWNLOAD\Model\EMP\KF750- KF750_080501_MP.dll (Model DLL)- SSW File (Model Binary)- MAP File (GDFS Files)

5.2.1 Frame Preference Dialog

• Port Selection

Select download ports.

• DLL Selection

Select Model DLL.

• Download Configuration

Setup DLL configuration.

• DLL Information

Show DLL configuration information what is selected.

Page 184: LG KF750 KF755c Secret Service Manual

- 185 -

5. DOWNLOAD

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

5.1.3 DLL Preference Dialog

This page is depend on model DLL.To run, press “Download Configuration” at Frame Preference Dialog.

• Use USB Address

If this check is unchecked, Connected phone use from Port 1 dialog.

Unchcked, use fixed USB port. You should assign port number with USB Address.

• Image Files

Select Image binary files.

• GDFS File

Select GDFS files.

Page 185: LG KF750 KF755c Secret Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

5. DOWNLOAD

- 186 -

5.2 Download• On Frame Preference Dialog, select download port and select model DLL.

• Add Binary images and GDFS files.

• Close all preference dialog and select Start Button on main page.

• Connect phone and wait until download finished.

* Usage fixed USB port

Page 186: LG KF750 KF755c Secret Service Manual

- 187 -

5. DOWNLOAD

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

5.2.1 How to run

Not Qualcomm USB Driver but EMP USB Driver assign port ID in order phone connected from ID 1.For use fixed port ID, assign port ID before download job.

5.2.2 Setting

• Phone should connect just one before detect USB address.

• Connect phone first curl-cord.

• Press Set Button.

• Check USB Address which is loaded.

• Do 2 again.

• After assign all ports, press save dialog.

Page 187: LG KF750 KF755c Secret Service Manual

- 188 -

6. BLOCK DIAGRAM

GSM & WCDMA RF Block

6. BLOCK DIAGRAM

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

DCDCU201

GSM TRxU102(Gimly)

UMTS TRxU203(Ylva)

Antenna

Test Conn.SW100

GSM PAM with FEMU100

DuplexerFL202

IsolatorIS200

UMTS PAMU200

UMTS TX FilterFL201

UMTS RF FilterFL200

Crystal -26MX100

BluetoothAntenna

BluetoothU801

STLC2593C

Figure 5-1. RF Block Diagram

Page 188: LG KF750 KF755c Secret Service Manual

- 189 -

6. BLOCK DIAGRAM

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

TXPower Detec tingLMV221U202

TXDirectional Couple r

LDC181G9519B-327N200

RXFilterSAFEB942MFL0F00FL102

RXFilterSAFEB1G96FA0F00FL101

TRXModemDB3150U301

GSM

RXFilterSAFEB1G84FA0F00FL100

Calibration, etcTest Conn ectorKMS-518SW100

TRXBlu etoothSTLC2593U801

GSM/DCS/PCS Tri w ith FEM

PAMSKY77519U100

TRXTRxRF3000 (Giml y)U102

Bluetooth

TRXModemDB3150U301

TXIsol atorCES201G95DCB000IS200

TXPAMSKY77174U200

TXDC/DC LM3208DSU201

TXTx RF FilterSAFEB1G95KA0F00FL201

RXRX RF FilterSAFEB2G14FA0F00FL200

TRXTRxRF3100 (Ylva)U203

TRXDuplexerSAYZY1G95EA0B00FL202WCDMA

Reference -13MCrystalKSX-23-26000KFA-QA0RX100

Band S electFEMSKY77519U100Common

CommentFunctionPart NameRef. NameBlo ck

Table 5-1. RF Block Component

Page 189: LG KF750 KF755c Secret Service Manual

- 190 -

6. BLOCK DIAGRAM

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Whole Block Diagram

Page 190: LG KF750 KF755c Secret Service Manual

- 191 -

C

1

6

G

01

NAC DLEIHS

21

7

C

9

HH

9

E

3 21

3 6

1

21

E

H

D

4

B

E

F

5

5

11

G

D D

B

C

A

9

762

11

A

86 01

8

9

A

B

D

844 7 11

G

2

01

1

F F

5

11

B

0173

A

H

C

1

E

54

2

2 83 21

F

G

p65721C

p22701C

801LAN

IND111C

801CIND

p22021C

p21121C

101WSE100-96302

TNA

1G2G3G

815-SMK001WS

AC

G1

G2

Hn81

201Cu01

301L

p21421C

R10

9

100K

220

R10

8

R0AQ-AFK00062-32-XSK

001X

zHM62

2134

Hn6.5201L

p72331C

p6.5521C

401LHn01

311RK001

R10

4

300

R10

7

220

811Cu7.4

R10

5

100K

101PT

00F0AF69G1BEFAS101LF

G1 2

G25 IN

1O

1 3

O24

32R

X19

00P

52N008XRP008XR

62

92N009XR

82P009XR

6RTS

TUOTSET9

4BHXT

TX

LB39

42ACCV

18V

CC

D

WB

CLK

11 13X

ON

XO

P14

38G

ND

A2

GN

DA

336

GN

DA

433

5ADNG1

6ADNG03

7ADNG3

728ADNG

9ADNG5

17G

ND

D

01QERKICM

16M

CLK

37N

C

PG

ND

41 35R

X18

00N

RX

1800

P34 31

RX

1900

N

201UNH1916MO_0003FR

2DOMMA

8KLC

ATAD7

DA

TAA

20D

ATA

B19

22CATAD

12RTSATAD

40G

ND

A1

01ADNG32

GN

DA

1112

GN

DA

1215

211RK001

n01

001LHn01

101C

p72

21G

2G

5

NI11O

3

2O

4

531C

921C

201LF

00F0LFM249BEFAS

p01231C

p01

21G

2G

5

NI1

1O

3

2O

4

301LF

00F0MFM188BEFAS

G1 2

G25 IN

1O

1 3

O24

Hn7.2

601L

3456

789

00F0AF48G1BEFAS001LF

001CS

1

011121

2

p22411Cp22311C

4.7K

R11

1

001PT

p6.5321C

401Cp22

221Cp6.5

p22911C

TABV

R10

0

0

C10

9D

NI

300

R10

3

711Cu1.0

501Cp22

33

201RHn01101L

431Cu01

5161

7DNG8DNG

7181

9DNG

32NI_MSG

2EDOM

DNGP92

DVSR3

1XR76

2XR3XR

54

4XR

NEXT1

52CPAV

TTABV62

1AMDCW01

8TNA1SB

8272

2SB

12NI_SCP_SCD

91DNG

01DNG9102

11DNG21DNG

2231DNG

42

2DNG1121

3DNG4DNG

3141

5DNG

6DNG

001U91577YKS

131Cp7.2

201PT

u01301C

2 ADNG3

CCV5

4Y

EO_1

8V1_DARGIDV

RLRD521G1CVL47NS101U

701LHn81

p3.3031C

001Cp22

p6.5

57V2_KDDV

621C

R11

0

4.7K

Hn1208L

p22211C

p22601C

K001

411R

Hn6.5501L

p72821C

81

101R

601R

42

p22511C

0WSTNA

SCPSCD_XT

MSGE_XT

009XR

0081XR

058XR

058XR

0081XR

0091XR

009XR

8V2_ADARV

1WSTNA

CPAV

0091XR2WSTNA

1_DNAB_FRW

KLCW

PMETR

TUODA

MSGE_XT

SCPSCD_XT

n_QERKLC_TB

KLC_TB

KLCM

CPAV

KLC_LRTC_FR

ATAD_LRTC_FR

BSM_PMA_ATADQ

BSM_QERF_ATADI

BSL_QERF_BSL_PMA

RTSTAD_KLCDQERKLCM

KLCM

BRTS_LRTC_FR

TUOTSET

7. CIRCUIT DIAGRAM

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 191: LG KF750 KF755c Secret Service Manual

- 192 -

IND222C

723-B9159G181CDL

TUO_C3

1DNG52

2DNG

NI1

TUO_M6

4ETANIMRET

Hn7.4402L

002N

p22p01602C

402C

IND022C

IND

11DNG

42DNG3DNG

984DNG

65DNG

36DNG

7XR

XT5

122C

00B0BE59G1YZYAS202LF2

TNA

522C

p65

312CIND

102LF00F0AK59G1BEFAS

21G

52G

33G

NI1

TUO4

AP_CCV

p2.8

322C

922C

712C

IND

IND

8V2_ADARV

p65

702C

022

502R

302Cp0001

Hn2.8202L

8BIXTAQXT

901

BQXT

41_XT

XROLCCV42

6XTOLCCV

31V

CC

RX

40V

CC

TX

22DDV

VG

AC

TL

11 16N

C4

5CN32

526CN7CN

62

8CN82

9CN03

PG

ND

41

RE

FIN

15

38R

F_D

AC

1R

F_D

AC

239

17R

XIA

18R

XIB

19R

XQ

AR

XQ

B20

12TST

AIXT7

13C

LKD

ATA

12

EN

14

1XTDNG

72NI_1ANL

92TUO_1ANL

35M

IX1_

AM

IX1_

B36

21CN

32N

C10

NC

113334

NC

12

37N

C13

2CN3

3CN5

NH5916MO_0013FR

302U

AP_CCV

u1.0412C

022

702R

p6.5422C

112CIND

502C

8V2_ADARV

802C

p0001

822C

IND

IND

2DNG1DNG

4DNG3DNGTUONI

002PT

000BCD59G102SEC002SI

47177YKS002U

ELBANE2

61DNG

2DNG7

3DNG9

DNGP11

4TUO_FRNI_FR

8

5SAIBV

11CCV

012CCV

3LORTNOCV

R20

0

47

502LAN

612C

p65

202PT

u10.0202C

812C

p65

5.6n

HL2

03

TABV

TABV

p22622C

002LHn1

62

R20

3

8V1_DARGIDV

8V2_ADARV

IND722C

402PT

102Cu01

912CFn33

3O

14O

2

L201

3.3u

H

00F0AF41G2BEFAS002LF

2G

15G

2

1IN

022

802R

102PT

022

602R

512C

R20

4

62

p01

IND902C

8V2_ADARV

302PT

212Cu7.4IND

012C

8V2_ADARV

LT8023ML102U

NE1C

BF3C

3ADNGP

NIVP1A

3BDNGS

WS2A

2CNOCV

DDV1B

DA

P7

4NEDNG

3

TUO6

5FER

2NI_FR

1DDV

022

202R

122VML202U

u10.0002C

K1

102R

I_DNAB_DOMXTW

N_Q_XRW

P_Q_XRW

N_I_XRW

P_I_XRW

1_DNAB_XRW

KLC_LRTC_FR

ATAD_LRTC_FR

BRTS_LRTC_FR

KLCW

SAIB_APWCCV_APW

P_I_XTWN_I_XTWP_Q_XTWN_Q_XTW

NE_TED_WOPW

ESNES_WOPW

SAIB_APW

NE_1_DNAB_XTW

I_DNAB_DOMXTW 1_DNAB_XTW

1_DNAB_FRW

1_DNAB_XRW

1_DNAB_XTW

NE_CDCDW

CCV_APW

ESNES_WOPW

TED_WOPW

7. CIRCUIT DIAGRAM

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 192: LG KF750 KF755c Secret Service Manual

- 193 -

DNG

NI

TUO

D

C

5 7

9 21

10.01.7002 degnahC egatloV C2I_PPA

G

A

3

52.90.7002 NAROZ htiw detcennoc DSORCIM

01

6

)PCM(MARDS 61x 8.1v G1 + DNAN 8x 8.1v G2

E

10.01.7002 0513BD htiw detcennoc DSORCIM

A

01

3

H

4

B

11

ROTCENNOC MTE

011

01

1#NIP ELBANE RZ

H

4

D

54 21

A

F

8

3 92

E

H

C

E

ROTCENNOC GATJ

B

F

8

G

A

1 21

8

D

9

5

G

3

E

21

2 7

11

2

2

B

6 11

SC DNAN

C

6

4

G

B

7

C

SC dn2 MARDS stibG1

1

H

D

F

D_veR

1 7

9

F

sOIPG

)1S2I(NAROZ OT

5

8

SC NAROZ

116

0.1u

C31

5

0.1u

C31

8

8V1_EDDV

u1.0333C

u1

C31

20.

1u

203C

u1.0

C31

70.

1u

033C

5N8N

7SSV

1QSSV2E

2QSSV2J

3QSSV2L

7FSAC_

EC_6C

1SC_9E8E

2SC_

SAR_7E

5EER_

EW_6D

DEW_8F

5FPW_

MQDU

6B1CCV2CCV

7N

6NQCCV

4B1DDV

9G2DDV3DDV

2H

4DDV2M

2D1QDDV2QDDV

2F

3QDDV2K

1SSV2C9F

2SSV3SSV

2G4N

4SSV

5SSV5B

6SSV

K8

M5

NC

15N

C16

M6

M7

NC

17N

C18

M8

N2

NC

19

NC

2B

7

NC

20N

9

B9

NC

3N

C4

F3

J3N

C5

NC

6G

4

NC

7G

5G

6N

C8

NC

9H

5

B__R6E

3H

4J3K

9QD

5J0OI

5L1OI2OI

6J

3OI6L7J

4OI7L

5OI6OI

8J

7OI8L

MQDL3G

B2

NC

1

H6

NC

10N

C11

K5

K6

NC

12K

7N

C13

NC

14

P1

P2

DN

U9

0QD3B

1QD4C

01QD4K3L

11QD21QD

4L3M

31QD41QD

4M

51QD3N

2QD3C

3QD4D3D

4QD5QD

4E3E

6QD7QD

4F

8QD

ELA

7D0AB1AB

8D

8G1EKC

6F2EKC

5CELC

KLC4H

A2

DN

U1

DN

U10

P9

P10

DN

U11

A9

DN

U2

A10

DN

U3

DN

U4

B1

B10

DN

U5

DN

U6

N1

N10

DN

U7

DN

U8

7C0A1A

8C

9D01A

9H11A

7G21A

9C2A3A

8B9M

4A9L

5A9K

6A9J

7A7H

8A9A

8H

5D

003U55JD-MB00900LAK

C30

50.

1u

C30

40.

1u

0033313R

8V1_EDDV

503PT

5V2_FDDV

TP

300

433C

R31

10

533Cu1.0 u1.0

C32

30.

1u

C31

60.

1u

8V1_EDDV

0.1u

C32

4

TP

306

R30

40

Y13

VS

SA

DA

B9

VS

SC

OM

MO

NA

A8

VS

SC

O_P

LL_1

AA

13 Y12

VS

SC

O_P

LL_2

VS

SD

AA

A7 Y6

VS

SG

PA

D

VD

DC

O_1

V2_

20A

A14

VD

DC

O_1

V2_

21

L2V

DD

CO

_AF

AA

12V

DD

CO

_PLL

_1V

DD

CO

_PLL

_2A

B13

VD

DIO

_1V

8_00

A11

AB

17V

DD

IO_1

V8_

01V

DD

IO_1

V8_

02A

18E

22V

DD

IO_1

V8_

03V

DD

IO_1

V8_

04B

2L1

VD

DIO

_1V

8_05

VD

DIO

_1V

8_06

K1

M22

VD

DIO

_1V

8_07

VD

DIO

_1V

8_08

T22

W1

VD

DIO

_1V

8_09

VD

DIO

_2V

5_1

W6

VD

DIO

_2V

5_2

VD

DC

O_1

V2_

04A

A1

VD

DC

O_1

V2_

05V

DD

CO

_1V

2_06

AA

11A

A22

VD

DC

O_1

V2_

07V

DD

CO

_1V

2_08

AB

1A

B2

VD

DC

O_1

V2_

09V

DD

CO

_1V

2_10

AB

21A

B22

VD

DC

O_1

V2_

11V

DD

CO

_1V

2_12

B1

B22

VD

DC

O_1

V2_

13V

DD

CO

_1V

2_14

A16

B21

VD

DC

O_1

V2_

15V

DD

CO

_1V

2_16

K22

N1

VD

DC

O_1

V2_

17V

DD

CO

_1V

2_18

R22

T1

VD

DC

O_1

V2_

19Y

11

1A

SMT1M

1PN_TSRT

TX

_AD

C_S

TR

BW

2

TX

_PO

WA

B7

US

B_D

AT

_VP

L4

US

B_O

EM

4L3

US

B_S

E0_

VM

AA

10V

CC

AD

AA

6V

CC

DA

VC

CG

PA

DA

A9

VD

DA

DW

11

VD

DC

O_1

V2_

00A

10A

2V

DD

CO

_1V

2_01

VD

DC

O_1

V2_

02A

22E

1V

DD

CO

_1V

2_03

A7

V7

RF

_WC

DM

A_P

WR

DE

T_E

NA

B6

NIKLCCTR51W

KCTR3N

5UKLCSTADS

9P

71AAN_ECIVRES

N_TSRS01P

61Y0KLCSYS

51Y1KLCSYS2KLCSYS

61W

61VN_QERKLCSYS

2NKCT

2MIDTODT

3M

12AN_0UMETN_1UMET

AB

15A

B14

PLL

_PG

_416

_VC

ON

T

11PN_TSRRWPN_0TUOSER

81V61BA

N_1TUOSERN_2TUOSER

61AA

RF

_CT

RL_

CLK

AB

4

RF

_CT

RL_

DA

TAA

A4

AA

3R

F_C

TR

L_R

ES

ER

VE

D

AB

3R

F_C

TR

L_S

TR

B

Y4

RF

_DA

TA_A

RF

_DA

TA_B

AA

2Y

3R

F_D

ATA

_CY

2R

F_D

ATA

_ST

RB

AB

5R

F_W

CD

MA

_DC

DC

_EN

AB

8R

F_W

CD

MA

_PA

_0_E

NR

F_W

CD

MA

_PA

_1_E

N

M19

L21

PD

I_C

2P

DI_

C3

L20

L19

PD

I_C

4P

DI_

C5

K19

K20

PD

I_D

0P

DI_

D1

J19

K21

PD

I_D

2P

DI_

D3

J20

J21

PD

I_D

4P

DI_

D5

J22

H19

PD

I_D

6P

DI_

D7

H20

PD

I_R

ES

_NL1

4

PLL

_26_

FIL

TV

DD

AB

12A

B11

PLL

_26_

VC

ON

TP

LL_P

G_4

16_F

ILT

VD

D

Y17

AB

19M

CD

AT

1M

CD

AT

2A

B18

AA

18M

CD

AT

3M

CD

ATA

DIR

W17

41WKLCM

QERKLCM41Y

N_QRICCASM02BA

N_QRIPPASM02AA

G18

NA

1N

A2

V6

PC

MC

LKV

4

Y1

PC

MD

LD

W3

PC

MS

YN

PC

MU

LDV

5

M20

PD

I_C

0P

DI_

C1

02U22U

SW1S2I

KE

YIN

0V

19W

21K

EY

IN1

KE

YIN

2V

21U

18K

EY

IN3

KE

YIN

4U

19T

18K

EY

IN5

Y22

KE

YO

UT

0K

EY

OU

T1

W19

V22

KE

YO

UT

2K

EY

OU

T3

V20

W22

KE

YO

UT

4

Y19

MC

CLK

MC

CM

DA

A19 Y18

MC

CM

DD

IRM

CD

AT

0

GN

D_1

4G

ND

_15

N13 J11

GN

D_1

6G

ND

_17

J12

J13

GN

D_1

8G

ND

_19

J14

I2C

SC

LA

A21

I2C

SC

L2W

20Y

20I2

CS

DA

I2C

SD

A2

Y21

KLC0S2I02R

91TDLD0S2IDLU0S2I

12T91R

SW0S2I

KLC1S2I02T

12UDLD1S2IDLU1S2I

GN

D1_

3

AB

10G

ND

AD

K10

GN

D_0

0G

ND

_01

K11

K12

GN

D_0

2G

ND

_03

K13

K14

GN

D_0

4G

ND

_05

L10

L11

GN

D_0

6L1

2G

ND

_07

L13

GN

D_0

8G

ND

_09

M10

M11

GN

D_1

0G

ND

_11

M12

M13

GN

D_1

2G

ND

_13

N11

N12

9D

6D0TATSP_MTE1TATSP_MTE

5A6C

2TATSP_MTE

6BKLCT_MTE

0TKPT_MTE8A8D

1TKPT_MTE2TKPT_MTE

8C7D

3TKPT_MTE4TKPT_MTE

8B7C

5TKPT_MTE6TKPT_MTE

7B6A

7TKPT_MTE

CNYST_MTE5D

N10

GN

D1_

1G

ND

1_2

W12

W13

01D_2FIME11D_2FIME

71D71E

21D_2FIME81D

31D_2FIME81E

41D_2FIME51D_2FIME

91D

KLCBF_2FIME01B

YDAER_FIFN_2FIME9B

41A_10SBDS_2FIME02A81B

31A_0SBDS_2FIME

91A51A_1SBDS_2FIME

N_EO_ER_SACDS_2FIME9A

01CKLCDS_2FIME

NEKLCDS_2FIME01D11C

N_VDA_SARDS_2FIME

9CN_TIAW_2FIME

N_EW_2FIME

21B

11BKLC_2FIME

62A_ERC_2FIME22F

N_0SC_2FIME6E7E

N_1SC_2FIME01J

N_2SC_2FIME

00D_2FIME21D

10D_2FIME21C31D

20D_2FIME30D_2FIME

31C41D

40D_2FIME50D_2FIME

41C51D

60D_2FIME70D_2FIME

51C61D

80D_2FIME90D_2FIME

61E71C

80A_2FIME90A_2FIME

61C71A

01A_2FIME11A_2FIME

71B

21A_2FIME81C

61A_2FIME91B02B

71A_2FIME81A_2FIME

02C91C

91A_2FIME02A_2FIME

12C12D

12A_2FIME22A_2FIME

22C02D

32A_2FIME42A_2FIME

22D12E

52A_2FIME

11DN_0EB_2FIMEN_1EB_2FIME

41A_10SBDS_1FIME

1J31A_0SBDS_1FIME

2K51A_1SBDS_1FIME

4BN_SACDS_1FIMENEKCDS_1FIME

4A4D

KLCDS_1FIMEN_SCDS_1FIME

5B

N_SARDS_1FIME4C5C

N_EW_1FIME

10A_2FIME31B21A

20A_2FIME30A_2FIME

31A41A

40A_2FIME50A_2FIME

41B51B

60A_2FIME70A_2FIME

51A61B

00D_1FIME3D

10D_1FIME20D_1FIME

5E4E

30D_1FIME40D_1FIME

5F4F

50D_1FIME60D_1FIME

3F3G

70D_1FIME80D_1FIME

4G5G

90D_1FIME01D_1FIME

3H4H

11D_1FIME21D_1FIME

4J3J

31D_1FIME41D_1FIME

4K3K

51D_1FIME

2J

81W

L9E

FU

SE

_HV

4

2C10A_1FIME20A_1FIME

1C2D

30A_1FIME40A_1FIME

1D3E

50A_1FIME60A_1FIME

2E2F

70A_1FIME80A_1FIME

2G1F

90A_1FIME01A_1FIME

1G1H

11A_1FIME21A_1FIME

2H

N_0EB_1FIME3B3A

N_1EB_1FIME

3C

F19

CI_

D1

G21

F21

CI_

D2

CI_

D3

G20

CI_

D4

H21

G19

CI_

D5

CI_

D6

G22

CI_

D7

H22

F18

CI_

HS

YN

C

CI_

PC

LKF

20E

20C

I_R

ES

_N

E19

CI_

VS

YN

C

Y8

DA

C_I

_NE

GD

AC

_I_P

OS

W8

W7

DA

C_Q

_NE

GD

AC

_Q_P

OS

Y7

NOCD

51AA

0_OIPG_PPA41M41N

1_OIPG_PPA

01_OIPG_PPA12P22P

11_OIPG_PPA21_OIPG_PPA

91P02P

31_OIPG_PPA41_OIPG_PPA

21P

2_OIPG_PPA31P41P

3_OIPG_PPA4_OIPG_PPA

22N12N

5_OIPG_PPA6_OIPG_PPA

12M22L

7_OIPG_PPA8_OIPG_PPA

02N91N

9_OIPG_PPA

CI_

D0

12R

3_OIPG_CCA9N9M

4_OIPG_CCA5_OIPG_CCA

4N

6_OIPG_CCA3P

7_OIPG_CCA4P4R

8_OIPG_CCA9_OIPG_CCA

3R

Y10

AD

C_I

_NE

GA

DC

_I_P

OS

W10

W9

AD

C_Q

_NE

GA

DC

_Q_P

OS

Y9

W4

AN

T_S

W0

W5

AN

T_S

W1

AN

T_S

W2

Y5

AA

5A

NT

_SW

3

PEELSPPA

0_OIPG_CCA1_OIPG_CCA

9K

2R01_OIPG_CCA11_OIPG_CCA

1R2T

21_OIPG_CCA31_OIPG_CCA

4T1U

41_OIPG_CCA51_OIPG_CCA

3T5T

61_OIPG_CCA71_OIPG_CCA

4U

81_OIPG_CCA3V

91_OIPG_CCA1V

2P2_OIPG_CCA

2U02_OIPG_CCA12_OIPG_CCA

3U2V

22_OIPG_CCA32_OIPG_CCA

103U

0513BD

71VPEELSCCA

9J

R30

8

10K

u1.0

p0001723C

C31

40.

1u

823C

100K

003Q

7011NRB

C

E

R30

5

0.1u

C31

3

923Cu1.0

R30

0

0

TP

303

R30

9

2.2K

u1.0

0.1u

233C

C30

7

0.1u

C30

9

C30

6

0033413R

0.1u

0033513R

C32

10.

1u

C32

533

n

8V1_EDDV

u1103C

EROCV

523PT

0.1u

C31

10.

1uC

310

C30

30.

1u

8V1_EDDV

0033213R

C32

633

n

8V1_EDDV

423PT

TP

302

TP

301

0

R30

1

u1.0133C

0.1u

403PT

C30

8

0.1u

8V1_EDDV

C32

0

603R

K001

R30

2

0

013R

IND

513PT

u1003C

8V1_EDDV

C31

90.

1u

0.1u

R30

7

100K

C32

2

ESNESFHP_71PG_CCA

DI_DCL_21PG_PPA

n_EC_FN

NE_ROTOMBTESER_MP_BUS

3TAD_DSORCIM

LCD

_AD

S_N

LCD

_CS

_N

LCD

_WE

_N

LCD

_RD

_N

LCS_NEERCS_HCUOT_50PG_PPA

AP

P_I

2C_S

CL

AP

P_I

2C_S

DA

3TAD_BSU_22PG_CCA

KLC_DS

KLCS

ESNESPILF_51PG_CCA

SD

_CS

2_n

SD

_CK

E2

MIC

RO

SD

_DA

T2

MIC

RO

SD

_DA

T3

MIC

RO

SD

_CM

D_D

IR

MIC

RO

SD

_DA

T_D

IR

LCD

_DA

TA[0

]LC

D_D

ATA

[1]

LCD

_DA

TA[2

]

LCD

_DA

TA[4

]

LCD

_DA

TA[6

]

LCD

_DA

TA[3

]

LCD

_DA

TA[5

]

LCD

_DA

TA[7

]

LCD

_RE

SE

T_N

n_SC_PMM

TERKLC_CM_31PG_PPA

NE_RWP_PMM_30PG_PPA

TNI_IPS_TB_41PG_CCA

1TAD_IPS_TB_52PG_CCAKLC_IPS_TB_62PG_CCA

0TAD_IPS_TB_42PG_CCA

KLC_BSU_40PG_CCA

2OIPG_MF_61PG_CCA

n_TNI_PMM_20PG_PPA

MIC

RO

SD

_CLK

MIC

RO

SD

_CM

D

MIC

RO

SD

_DA

T0

MIC

RO

SD

_DA

T1

)4(D_2FIME)3(D_2FIME)2(D_2FIME)1(D_2FIME

)51:00(D_2FIME

)0(D_2FIME

)2(D_2FIME

)4(D_2FIME

)6(D_2FIME

)70:00(D_2FIME

)11(A_2FIME

)41(A_2FIME

TNI_NEERCS_HCUOT_40PG_PPA

TNI_SIXA3_70PG_PPA

ADS_NEERCS_HCUOT_61PG_PPA

NE_ODL_HCUOT_21PG_CCA

N_TESER_PMM_01PG_PPA

FFO_OI_CV_12PG_CCA

LCD

_VS

YN

C

n_0TUOSER

5TAD_BSU_70PG_CCA4TAD_BSU_60PG_CCA

6TAD_BSU_01PG_CCA7TAD_BSU_11PG_CCA

n0SC_IPS_TB_32PG_CCA

NE_WS_PMA_72PG_CCA

n_1TUOSER

NE_PMA_KPS_31PG_CCA

2EKC_DS

XR_TRAU_00PG_PPAXT_TRAU_10PG_PPA

)7(D_2FIME)6(D_2FIME)5(D_2FIME

)7(ATAD_DS)8(ATAD_DS)9(ATAD_DS

)0(D_2FIME)1(D_2FIME

)3(D_2FIME

)5(D_2FIME

)7(D_2FIME

n_LMQD_DS

YDAER_FN

n_UMQD_DS

n_SAC_DS

n_EC_FN

n_SC_DS

n_SAR_DS

n_EO_ER_PMM_FN

n_EW_PMM_FN

n_EW_DS

1AB_DS

EKC_DS

ELC_FN

)0(ATAD_DS)1(ATAD_DS

)01(ATAD_DS)11(ATAD_DS)21(ATAD_DS)31(ATAD_DS)41(ATAD_DS)51(ATAD_DS

)2(ATAD_DS)3(ATAD_DS)4(ATAD_DS)5(ATAD_DS)6(ATAD_DS

KE

YIN

4

)1(RDDA_DS)2(RDDA_DS

)11(RDDA_DS)21(RDDA_DS)31(RDDA_DS

)3(RDDA_DS)4(RDDA_DS)5(RDDA_DS)6(RDDA_DS)7(RDDA_DS)8(RDDA_DS)9(RDDA_DS)01(RDDA_DS

ELA_FN

0AB_DS

CI_

D4

CI_

D5

CI_

D6

CI_

D7

CI_

PC

LKC

I_V

SY

NC

CI_

HS

YN

C

KE

YIN

0

KE

YO

UT

0K

EY

OU

T1

KE

YO

UT

2K

EY

OU

T3

KE

YO

UT

4

KE

YIN

1K

EY

IN2

KE

YIN

3

PEELS_CCAPEELS_PPA

0AB_DS1AB_DS

n_SC_DSKLC_DS

n_SAC_DS

n_EW_DS

EKC_DS

n_SAR_DS

n_LMQD_DSn_UMQD_DS

ELA_FN

n_EW_PMM_FN

YDAER_FN

SH

AR

ED

_I2C

_SC

LS

HA

RE

D_I

2C_S

DA

CI_

D0

CI_

RE

S_n

CI_

D1

CI_

D2

CI_

D3

TX

_AD

C_S

TR

B

WP

OW

_DE

T

US

B_D

AT

1

US

B_D

AT

2U

SB

_DA

T0

HSALFPPV

TADS

RF

_CT

RL_

DA

TAR

F_C

TR

L_S

TR

B

QD

ATA

_AM

P_M

SB

IDA

TA_F

RE

Q_M

SB

AM

P_L

SB

_FR

EQ

_LS

BD

CLK

_DA

TS

TR

WD

CD

C_E

N

WT

X_B

AN

D_1

_EN

WP

OW

_DE

T_E

N

KLCCTR

n_TSRS

0KLCSYS1KLCSYS1LATX_BSU

n_QERKLC_TB

TUOD_MCP_MCPHCNYS_MCP_MCPH

KE

YIN

5

KLCM

QERKLCM

n_QRI_CCAn_QRI_PPA

AC

C_P

CM

_CLK

AC

C_P

CM

_DLD

AC

C_P

CM

_SY

NC

AC

C_P

CM

_ULD

n_TSRRWPn_0TUOSER

n_2TUOSER

RF

_CT

RL_

CLK

WT

X_Q

_P

NOCD

)21(A_2FIME

ELC_FN

n_2SC_DS

)8(D_2FIME)9(D_2FIME)01(D_2FIME)11(D_2FIME)21(D_2FIME)31(D_2FIME)41(D_2FIME)51(D_2FIME

)31(A_2FIME

n_EO_ER_PMM_FN

KLC_0S2I

DLD_0S2IDLU_0S2ISW_0S2I

KLC_MCP_MCPH

NID_MCP_MCPH

PTS_BSU_00PG_CCARID_BSU_10PG_CCA

DP_SC_BSU_02PG_CCA

XR_0TRAU_20PG_CCAXT_0TRAU_30PG_CCA

TXN_BSU_50PG_CCA

WR

X_I

_NW

RX

_I_P

WR

X_Q

_NW

RX

_Q_P

AN

TS

W0

AN

TS

W1

AN

TS

W2

TNI_ETOMER_11PG_PPA

WT

X_I

_NW

TX

_I_P

WT

X_Q

_N

)31:1(RDDA_DS

)1(RDDA_DS)2(RDDA_DS)3(RDDA_DS)4(RDDA_DS)5(RDDA_DS)6(RDDA_DS)7(RDDA_DS)8(RDDA_DS)9(RDDA_DS)01(RDDA_DS)11(RDDA_DS)21(RDDA_DS)31(RDDA_DS

)51:0(ATAD_DS

)0(ATAD_DS)1(ATAD_DS)2(ATAD_DS)3(ATAD_DS)4(ATAD_DS)5(ATAD_DS)6(ATAD_DS)7(ATAD_DS)8(ATAD_DS)9(ATAD_DS)01(ATAD_DS)11(ATAD_DS)21(ATAD_DS)31(ATAD_DS)41(ATAD_DS)51(ATAD_DS

7. CIRCUIT DIAGRAM

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 193: LG KF750 KF755c Secret Service Manual

- 194 -

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314C

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21KSVV

XTA

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H14 J14

XTA

LOU

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ADIV8P

BDIV8N

CDIV9P

01MDDIVEDIV

01N

FDIV9N11N

GDIV11P

HDIVIDIV

21N

JDIV7N8L

KDIVLDIV

31P

MDIV9L

31NNDIV

11MODIVPDIV

9M

F4

VD

DC

OR

E2

J11

VD

DC

OR

E3

L7V

DD

CO

RE

4

L6V

DD

Q1

D7

VD

DQ

2

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D_C

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H4

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D_G

EN

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AL

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D_H

OS

TD

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VD

D_L

CD

D6

VD

D_M

MC

G2

VD

D_N

AN

DK

10

VD

D_P

MU

D10

VD

D_S

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G4

VE

NB

YP

INE

13E

11V

EN

BY

PO

UT

FERHV21M

TD

OD

13

TE

ST

F14

TM

SE

14

TR

ST

ND

14

41GATADVT

31FFERVT

1LSTCTRAU

1MSTRTRAU

3NXRTRAU

4MXTTRAU

4PNDUPDU

3P

DIU6P7M

TESRU

SUBVU4J

D8

VD

DC

OR

E1

G13

RE

SE

TN

41NLCS

1GKLCSDMCS

2H

41PADS

1F0TADS

2F1TADS

5E2TADS3TADS

3F

2NKLCIPS

SCIPS3K

3JIDIPS

2LODIPS

PWS3G

TC

KD

11

TD

IE

12

NRWL4C

31MELANELCN

21L

31LNSCN

0DN41L

1DN01L

11K51DN

21J2DN3DN

21H41K

4DN5DN

21G

6DN31J

7DN31H

41MNBRN

11LNERN

31KNEWN

2C31DL41DL

5C6C

51DL61DL

3D1D

71DL

2DL6B4B

3DL4A

4DL5DL

3C

6DL3A2A

7DL8DL

1A2B

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SHL4E

5DNDRL

SVL3E

3HKLCMCPH

1JIDMCPH

ODMCPH2J

SFMCPH1H

NDRH7B9B

NRWH

0AL4D

2ETCAL

1EKCL

N0SCL6A2D

N1SCL

5B0DL1DL

5A

1B01DL11DL

3B1C

21DL

01C1DH

01DH21B

11DH21A11B

21DH31DH

11A9C

41DH51DH

01B

21C2DH3DH

31C

4DH41C41B

5DH11C

6DH7DH

31B

8DH41A31A

9DH

7ANTNIGH

1OIPG3M7P

2OIPG3OIPG

1N1P

4OIPG5M

5OIPG6OIPG

6N6M

7OIPG8OIPG

5P

9OIPG5N

11AH01A9A

21AH31AH

8C

41AH7C

8BN0SCH

8AN1SCH

21D0DH

H7

GN

D10

H8

GN

D11

H9

GN

D12

J6G

ND

13G

ND

14J7

GN

D15

J8 J9G

ND

16

GN

D2

F7

GN

D3

F8

F9

GN

D4

G6

GN

D5

GN

D6

G7

G8

GN

D7

GN

D8

G9

GN

D9

H6

2P0OIPG

404U

2MKLCBA

3LIDA

ODA1K2K

SFA

AG

ND

_US

BC

L5A

GN

D_U

SB

TK

5

AG

ND

_VD

AC

F12

4NKLCMA

E10

AV

DD

_PLL

AV

DD

_US

BC

L4K4

AV

DD

_US

BT

AV

DD

_VD

AC

IH

11

AV

DD

_VD

AC

PG

11

F11

AV

SS

_PLL

GN

D1

F6

3543RZ

p8704C

204L

V1.6_GERV

R40

00

Hu7.4

p8C

419

804C8V1_EDDV0.

1u

Hu2.2

304L

R43

3

75

2.2u

CA

M_V

DD

_1.8

V

u1.0

C42

8

304C

5.1K

R40

6

R43

4

390

014Cu1.0

MM

P_V

DD

_CO

RE

_1.0

V

724C

V0.1_EROC_DDV_PMM

804PT

u2.2524C

p22

1uC

420

1uC

418

3NIVA

1NE11

2NE2

211BF2BF

1

6DNGP

01DOOGP

1WS8

2WS4

DNG_T31

NIV9

7MWPF_

V8.1_DDV_MAC

LMYAA_8322CIM304U

5DNGA

u7.4124C

270K

R42

9

TABV

604PT

130K

R42

7

V9.1_DDV_PMM

57V2_GDDV

614Cp01

0524R

0034R

DN

I

R41

5

404PT

304PT

p22924C

180K

R42

2

314PT

028C

0518R

IND

114Cp01

004PT

R43

2D

NI

VD

DG

_2V

75

114PT

004LHu01

134C

414C

p033

21

34

u1.0

0

FP9_zHM72_832-AF004X

zHM72

R41

3

104Cu1.0

0

R41

4

0R

401

NE4

DNG2

PG

ND

5

3NIV

1TUOV

TABV

004QTMY17049CIM

014PT

R41

71K

614R

K001

DN

IR

402

704PT

204PT

404Cu1.0 u01

504Cu1.0

004C

V0.1_EROC_DDV_PMM

u01904C

604Cp01

47K

R42

8

CA

M_V

DD

_1.8

V

20K

R40

4

u2.2224C DGNA

4

NE63

BFCN

5

TUO81

DNGP

WS7

9DNG_T

2NIV

1KR

418

004U

LMY0922CIM

624Cp22

424Cu1

0.1u

C41

7

MM

P_V

DD

_1.9

V

68K

R42

4

514Cu1.0

FB

401

034Cp033

V9.1_DDV_PMM

Hu7.4104L

324C

214PT

FF_TUOHTIW_CNYSH_ICFF_TUOHTIW_CNYSV_IC

KLCP_IC

)21(A_2FIME

u01

n_SC_PMM

n_TNI_PMM_20PG_PPA

NDWP_MAC_PMM

HCROT_DEL_HSALFNE_DEL_HSALF

NE_RWP_PMM_30PG_PPA

NE_RWP_MAC_PMM

FF_TUOHTIW_CNYSV_IC

CNYSV_IC

FF_TUOHTIW_CNYSH_ICCNYSH_IC

NE_CDCD_LE

TESER_HCUOT_50PG_PPA

NE_CDCD_LE

1D_IC2D_IC3D_IC4D_IC5D_IC6D_IC7D_IC

0D_IC

KLC_1S2I

HNI_DEL_HSALF

]8[ATAD_MAC_PMM

)0(D_2FIME

)51:00(D_2FIME

KLCP_MAC_PMM

MM

P_X

TAL_

OU

T

]6[ATAD_MAC_PMM

]4[ATAD_MAC_PMM

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]11[ATAD_MAC_PMM]01[ATAD_MAC_PMM

N_TESER_MAC_PMM

CNYSH_MAC_PMMCNYSV_MAC_PMM

ADS_C2I_PMMLCS_C2I_PMM

NI_LATX_PMM

TUO_LATX_PMM

AP

P_G

P10

_MM

P_R

ES

ET

_N

KLC_MCP_MCPHCNYS_MCP_MCPH

NID_MCP_MCPHTUOD_MCP_MCPH

MM

P_X

TAL_

IN

TUO_VT

]9[ATAD_MAC_PMM

]7[ATAD_MAC_PMM

]5[ATAD_MAC_PMM

]3[ATAD_MAC_PMM

KLCM_MAC_PMM

DLD_1S2IDLU_1S2I

]0[ATAD_MAC_PMM]1[ATAD_MAC_PMM

n_EW_PMM_FNn_EO_ER_PMM_FN

)31(A_2FIME)41(A_2FIME

)11(A_2FIME

)51(D_2FIME)41(D_2FIME)31(D_2FIME)21(D_2FIME)11(D_2FIME)01(D_2FIME

)9(D_2FIME)8(D_2FIME)7(D_2FIME)6(D_2FIME)5(D_2FIME)4(D_2FIME)3(D_2FIME)2(D_2FIME)1(D_2FIME

SW_1S2I

7. CIRCUIT DIAGRAM

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 194: LG KF750 KF755c Secret Service Manual

- 195 -

21

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F

7

B

1

.nnoC yrettaB

4

2102

4

DNG LLP_SSV & GID_SSV etarapeS

V01

32

golana 0013BD ot

11

G

%1

%1

6 8

E

%1

82

riap laitnereffid a sa etuor

11

11

01

B

%1

%02 ?A7.0 0.1*6.2*8.2

H

57V2_BMS_HDDV

Hu7.4005L

205C

n74135C

u1

51915R

TABV

915Cp74

SSAPYB1C

DNG2B

2C+NI

3C-NI

3ADDV

+OV3B

-OV1A1B

NWODTUHS_

TABV

RVQZ1A5026APT005U

0805R3060

D50

0

RB

521S

-30

R50

0

100K

415Cu01

K74515R

1.0315R

3060u1.0815C

u7.4

005C

TABV

56V2_CDDV

8V1_DARGIDV

u1325C

405Cu7.4

1uC

537

505R

K2.2

u1

100K

R52

3

3060

505C

220n

C53

6

p42315C

u1.0515C

3060

0

705R

3060

005BF

K74415R

5V1_DDDV

3060

205PT

K01125R

0115R3060

K93715R

47K

R52

5

3060

8V2_ADARV

n74425C

105QJD119AIS

1D

2D

3D

4D

1G

2G

1S

2S

5V2_FDDV

G1

G2

1 2 3

C_TABV

CN

500

0215R

905R

p42215C

520.0

505PT

335CIND

3060

0

405R

57V2_KDDV

u1105C

2

3

1

905Cu1

005QUA2222NTK

405PT

u1015C705C

305PT

u1

u1

8V1_EDDV

225C

805PT

57V2_GDDV

905PT

u1.03060 22

p

625C

C53

0

5A2

20B2

31B2

DNG4

1S7

2S6

CCV9

300K

R50

6

XMUT8622ASF105U

A1801

0B1

11B1

615R

51

n01535C

3060

56V2_CDDV

025Cu1

33u

C51

7

u1

100

R50

1

605Cu1

21

805C

005X

zHK867.23

615Cu01

D50

1

KD

S22

1E_R

TK

3A1_

C2

2

A2

C1 1

TABV

u2.2305C

TABV

51815R22p

C52

7

Fn33

TABV

115C

R52

210

0K

3060

5V1_DDDV

C52

822

p

22p

C_TABV

5V1_DDDV

C52

9

TABV

8V1_EDDV

EROCV

u2.2525C

u1.0435C

3060

3060 K01025R

K93425R

n74235C

VS

S_C

L7V

SS

_CO

DE

C

VS

S_D

G3

D7

VS

S_D

IG

VS

S_P

LLL1L4

VS

S_S

PK

RN

L2V

SS

_SP

KR

P

TSOOB_V3B

1SW3D

2SW3C

21K1LATX2LATX

11K

TSOOBSSV

KCUBSSV1B

F7

VS

ST

H1

H6

VS

ST

H10

VS

ST

H11

G5

VS

ST

H12

F5

G7

VS

ST

H2

VS

ST

H3

G6

VS

ST

H5

E6

VS

ST

H6

E7

VS

ST

H7

F8

G8

VS

ST

H8

H7

VS

ST

H9

E10

VS

S_A

VS

S_B

K1

VS

S_B

EA

RM

5

C6

6L

RAEB_DDV5K

11AC_DDV

8MCEDOC_DDV

21FD_DDV

3EGID_DDV

E_DDV21D

9AF_DDVG_DDV

7A

21BH_DDV

9FOI_DDV

K_DDV21M

LLP_DDV1M

RKPS_DDV3L

B6

VIB

R

01DFERV

5E

1G

H11

TX

ON

A_TABV11D

21EB_TABV

5AC_TABV

D_TABV1H

E_TABV21A

8AF_TABV

11MG_TABV

KCUBV2B

SUBV1J

C8

VD

DA

DC

2AKCUBDDV

11JPLDDV

21CA_DDV

7J1CDA_DDV

32CDA_DDV

2ODS

KLCMIS5H

TADMIS2H

01GN_FFOMIS

N_TSRMIS2J

CCVMIS1F

J10

SLE

EP

AS

LEE

PB

L12

NRKPS3M2M

PRKPS

2KN_TSRS

C11

SU

BG

2S

UB

2

4ATSOOBWS

1AKCUBWS

8ETSET

ELKCIRT

RDIM

01C1DOM

ON

SW

A_N

C7

ON

SW

B_N

B8

ON

SW

CG

9

SAIBP1D

H9

PW

RR

ST

_N

1KCS4D

4E2KCS

H10

SC

L

KLCS3J

SD

AH

12

3KTADS

1IDS2C

2D2IDS

1ODS1C

4F

J9

IRQ

B_N

L11

LED

1A

6

LED

2D

6B

7LE

D3

01L1NIENIL

01K2NIENIL

K4

MC

LK

N1CIM8J8K

P1CIM

N2CIM9M

P2CIM8L

N3CIM8H

01MP3CIM

9LN4CIM

9KP4CIM

5L

3F

3CED5J4J

4CED

ODLTXE11B

21G+ESNESGF

11G-ESNESGF

D8

GP

A0

A10

GP

A1

GP

A12

F10

GP

A2

B10

GP

A3

C9

D9

GP

A4

E9

GP

A5

GP

A6

F11

E11

GP

A7

FERI3H

IRQ

A_N

6K

2OXUA6M

ATADB4H

6JNRAEBPRAEB

4M

5D+BF_TSOOB

5B+ESNESI_TSOOB

5C-ESNESI_TSOOB

4C1WS_TSOOB

4B2WS_TSOOB

3A3WS_TSOOB

7M1OCC2OCC

7K

GERHC2E

1E+ESNESHC

2F-ESNESHC

OICD

B2R-0003BA

205U

21JZHK23

B9

AD

OU

T

G4

AD

ST

R

1OXUA

105PT

TABV

D50

2

RB

521S

-30

R_RAEL_RAE

ELKCIRT

P1CIMN1CIM

EROCV

A_NICD

SU

B_L

ED

CCVMIS

KE

Y_L

ED

1K

EY

_LE

D2

ELKCIRT

NICD

MO

TO

R_P

WM

SH

AR

ED

_I2C

_SD

A

N2CIMP2CIM

NRAEB

NE_WS_PMA_72PG_CCA

NE_PMA_KPS_31PG_CCA

PRKPS

NRKPS

RDIM

SW_0S2I

SW_1S2I

PUKCABV

TABV

+VCR_KPS

-VCR_KPS

PRAEB

8V2_ADARV

56V2_CDDV

8V1_DARGIDV

5V1_DDDV

8V1_EDDV

5V2_FDDV

57V2_GDDV

57V2_BMS_HDDV

57V2_KDDV

DLU_1S2I

DLD_0S2I

DLD_1S2I

KLCMIS

TADMIS

n_TSRMIS

AC

C_S

LEE

PA

PP

_SLE

EP

NRKPSPRKPS

n_TSRS

TX

_AD

C_S

TR

B

SUBV

SY

SC

LK1

PR_MF

PL_MF

ON

SW

A_n

ON

SW

B_n

DC

ON

PW

RR

ST

_n

KLC_0S2I

KLC_1S2I

SH

AR

ED

_I2C

_SC

L

KLCSTADS

DLU_0S2I

KLCCTR

AD

OU

T

HO

OK

RE

MO

TE

_AD

C

NRAEBPRAEB

1OCC2OCC

TE

ST

OU

TR

TE

MP

VB

AC

KU

P

AC

C_I

RQ

_nA

PP

_IR

Q_n

7. CIRCUIT DIAGRAM

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 195: LG KF750 KF755c Secret Service Manual

- 196 -

F

A

7

CDA_TMR/MD_BSU

11

G

A

E

V2.4+_TABV

YRETTAB PU_KCAB

6

9

B

42

8

L_RAE

D

1

3

A

1

B

21

21

9

CIM_SH

E

%1

XR_TRAU

HSALFPPV

C

3

H

7

TNI_TMR/PD_BSU

9

V5+_GHCV

)81.90.7002(TUO_VT

n_BWSNO

V01

8

F

3

F

2

H

1

%1

54

7

E

21

D

116

R_RAE

3

G

21

A

1%

DNG

5

G

NICD dna TRAU rof retliF DSE/IME

CDA_TMR/MD_BSU

C

F

015

2

G

n_TCETED_RAE

7

PU

LL-U

P R

EM

OV

ED

200

7.10

.01

2

detnuom eb dluohs CCA

V2.4+_TABV

H

6

01

deepS hgiH rof reviecsnarT BSU

rotcennoc ot raen

114

H

11

4

6

01

5 81

TNI_TMR/PD_BSU

01

E

8

TNA_MF

XT_TRAU

V5+_GHCV

REWOP_BSU

9

8V1_EDDV

0

616R

306BF

3060

K022026R

IND

888R

u1.0016C

8V1_EDDV

3060

R62

1

0

206BF

VA

603

ULC

E05

05C

015F

R

0.1u

C60

4

516C

IND

3060

006BF

006AVRF510C5050ECLU

K2.2

818R

u1u2.2918C

818CEC6

21DNG

52DNG

4CN

DDV31

TUOV

u1.0

D181D4111R308U

56789

TABV

3060

906C

1

011121314151617181

91

2

02

34

CP52-40S81-JESH

006NC

u7.4106C

ULC

E05

05C

015F

R

VA

602

C62

022

p

u10.0426C

106BF

74618R

506BF

C62

222

p

074016R

816C

IND

326Cu1

E_OICD5B5C

I_OICD

E_SMFD2A

I_SMFD3D

1AE_SMTD

2DI_SMTD

B2

GN

D1

GN

D2

B3

B4

GN

D3

C1

GN

D4

GN

D5

C2

VC

CC

4

5AE_SLFPPVI_SLFPPV

5D

006U2C-2ETTANK

E_SMFC4A4D

I_SMFC

3AE_SMTC

3CI_SMTC

E_NO_STC1B

I_NO_STC1D

R60

351

K

406BF

RS

B6.

8CS

T2R

ZD

600

0206R

R60

6

TABV

3060

12K

+1DSH

7-1DSH

2+2DSH

-2DSH6

LES01

9CCV

8EO_

R62

2

DN

I

206UXMU03BSUSF

+D3

-D5

DNG4

1

0.1u

C60

3

4.7u

3060

C60

2

106PT

006TAB

716C

526R

0

u1616C

u1.0

0

916R

074216R

74718R

IND006R

IND406R

3060

5.6K

R61

7

3060

VA

601

ULC

E05

05C

015F

R

R61

3D

NI

8V1_EDDV

22p

C62

1

u001416C

3060

R61

4D

NI

3060u1.0006C

916Cu2.2

K74

706R

006PT

8ETAG

TUO_ETAG9

2DNG

1NI1

2NI4

53NI

1CN1121

2CN

61TUO

2TUO7

01NE_

GALF_3

306UG2RTM843PCN

806C

K1816R

3060n01

Hn072006L

4.7u

C60

6

K1506R

DN

I

R62

3

L31BFSU006D

0.1u

3060

C60

5

TABV

R62

4

0

K3.3

516R

0106R

6D

TSET4C

4FSUBV

VC

CF

3

5B1OI_CCV2OI_CCV

2B

5F1LATX2LATX

6F

3060

7ATAD

5ERID

MD1C1D

PDTLUAF

2E

GN

D1

C5

D2

GN

D2

GN

D3

E4

3DDI

NC

1F

1F

2N

C2

5DN_WSPTXN

4D

6E8V1FER

3E3V3GER

2CFERR

PTS

0GFC1E

4B1GFC2GFC

3B

LES_PIHC3C4A

KCOLC0ATAD

1B1A

1ATAD2ATAD

2A3A

3ATAD4ATAD

5A6A

5ATAD6ATAD

6B6C

21CN

33CN2CN

67

4CN1TUO

8

52TUO

PG

ND

9

TEA8051PSI106U

NM4112FUN106LF

1NI1

2NI4

p22116C

2.2u

C60

7

u001316C

CDA_ETOMER

AP

P_A

CC

_UA

RT

_RX

AP

P_A

CC

_UA

RT

_TX

TNI_ETOMER_11PG_PPA

2OCC

P2CIM

KOOH

RDIM

PUKCABV

XR_TRAU_CCA_PPA

XT_TRAU_CCA_PPA

TUO_VT

XRT_BSU_SUBV

A_NICD

ESNESFHP_71PG_CCA

PD_BSU

MD_BSU

L_RAE

R_RAE

N2CIM

XT_TRAU_10PG_PPA

XR_TRAU_00PG_PPA

HSALFPPV E_HSALFPPV

n_BWSNO

NICD A_NICD

SUBV

TNA_MF

XR_TRAU_CCA_PPAXT_TRAU_CCA_PPA

E_HSALFPPV

NO_STC

TXN_BSU_50PG_CCAPTS_BSU_00PG_CCA

1LATX_BSU

XT_0TRAU_30PG_CCA

XR_0TRAU_20PG_CCA

NO_STC

MD_BSU

XRT_BSU_SUBV

PD_BSU

DP_SC_BSU_02PG_CCAKLC_BSU_40PG_CCA

0TAD_BSU1TAD_BSU2TAD_BSU3TAD_BSU_22PG_CCA4TAD_BSU_60PG_CCA5TAD_BSU_70PG_CCA6TAD_BSU_01PG_CCA7TAD_BSU_11PG_CCA

RID_BSU_10PG_CCA

7. CIRCUIT DIAGRAM

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 196: LG KF750 KF755c Secret Service Manual

- 197 -

RWPDXRUDXTU

G3G5.2

DNGXRXTRAHCVWS_NOTABV

2#OIPG htiw C2I LES-P

E

F

7 11

F

H

6001NC BCPF edilS oT

3

C

2

9

A

1101

elameF_ROTCENNOC nip 02

D

3

4

H

2 8

G

8

4

H

YEK_EDIS

1#OIPG htiw C2I neercS hcuoT

ODL_HCUOT

1

E

F

219

1 4

3 8

D

6

11

C

D

6

B

G

2

2#OIPG htiw C2I nottuB hcuoT

B

elameF_NOC_EDILS

REWOP AREMAC M5

01

G

1

C

98

E

D

C

75

H

21

4 7

01

219

G

7

ECAFRETNI AREMAC M5

21

11

V6.2_ODL DCL

6

3

E

012

TNIOP DAOLNWOD

5

PT tset noitcennoc FCA roF

5

BCP YEK_NIAM ot

F

hgiH evitcA

ROTCENNOC NIAM OT DRAOB_ECILS

1

GATJ

109NC BCP tekcoS oT

5

6

A

1uC

724

D113D4111R007U

EC6

1DNG2

2DNG5

4CN

1DDV

3TUOV

01507R

VG

A_V

DD

_1.8

V

3060

8797

8

08

9

TABV

8V1_EDDV

2636465666768696

7

0717273747576777

94

5

05152535455565758595

6

0616

33435363738393

4

140424344454647484

2

02122232425262728292

3

031323

207NC

1

01112131415161718191

TO

UC

H_3

.1V

IND

0007R

517C

NIV1

1TUOV87

2TUOV

VA

704

EV

LC14

S02

050

WQPGM-1109TR

21NE2NE

35

DNG1CN4

2CN6

PG

ND

9

307JO

307U

VA

703

EV

LC14

S02

050

IND317R

C71

1

3060p01

C71

81u

2G1G

4G3G

117PT

31

41

51

61

71

81

912

02

3

4

5

6

7

8

9

V1.3_HCUOT

007NC

1

1101

21

FB

700

TABV

1B_TUONI9

82B_TUONI

3B_TUONI7

64B_TUONI

527PT

RF001R070E48101EVCI

5G

110

G2

11A_TUONI

2A_TUONI2

33A_TUONI

44A_TUONI

6EC

1DNG2

2DNG5

CN4

1TUOVDDV

3

CA

M_V

DD

_1.8

V

007LF

TABV

F-RT-D182D4111R207U

VA

705

SIM

VC

C

EV

LC14

S02

050

607CIND

TABV

F-RT-D162D4111R107U

6EC

1DNG2

2DNG5

CN4

1TUOVDDV

3

VA

700

ICV

L051

8100

Y50

0FR

IND417R

207JO

p01

C70

8

VD

D_L

CD

_2.6

V

VB

AT

3060

IND417C

C72

2

427PT

788 9

TABV

1u

63 64 65 66 67 68 697 70 71 72 73 74 75 76 77495 50 51 52 53 54 55 56 57 58 596 60 61 6234 35 36 37 38 394 40 41 42 43 44 45 46 47 482 20 21 22 23 24 25 26 27 28 293 30 31 32 33CN

704

1 10 11 12 13 14 15 16 17 18 19

0107R

VG

A_V

DD

_2.8

V

007JO

VA

701

306001707R

ICV

L051

8100

Y50

0FR

VD

DG

_2V

75

127PT

01607R3060

3060

01407R

VD

DE

_1V

8

307NC1234

V8.1_DDV_MACV8.2_FA_DDV_MAC

u1717C

3060

C70

9

p01

G1

5

G2

10

1A_TUONI1

22A_TUONI

33A_TUONI

4A_TUONI4

91B_TUONI

2B_TUONI8

73B_TUONI

4B_TUONI6

TO

UC

H_3

.1V

u1.0207C

207LFRF001R070E48101EVCI

V8.2_FA_DDV_MAC

3060

33207R

IND507C

R71

00

V1.3_HCUOT

V8.2_DDVA_MAC

017PT

V1.6_GERV

227PT

VA

702

ICV

L051

8100

Y50

0FR

407C

3

0313233343

456789

3060u1.0

5161

817191

2

02122232425262728292

107NC1

0111213141

907PT

1uC

723

57V2_BMS_HDDV

u1307C 007C

V6.2_DCL_DDV

VR

EG

_6.1

V

u01

IND217C

617C

107JO

u1

1CN4

72CN

3CN89

4CN

5WS_NO

11STR

XR23

XT

TABV6

57V2_GDDV

007TRU

STC21

RSD01

1DNG

VD

DH

_SM

B_2

V75

TABV

707Cu1.0

807PT

CA

M_A

VD

D_2

.8V

3060

1uC

719

V8.2_DDV_AGV

R70

9D

NI

VG

A_V

DD

_1.8

V

317CIND

01

VG

A_V

DD

_2.8

V

307R

3A_TUONI

4A_TUONI4

91B_TUONI

82B_TUONI

3B_TUONI7

64B_TUONI

8V1_EDDV

RF001R070E48101EVCI107LF

G1

510G

2

11A_TUONI

2A_TUONI2

3

u1.03060

107C

327PT

627PT

p01

C72

1

3060

C71

0

1u 1u

NE_RWP_MAC_PMM

C72

0

N1CIM

1OCC

4TUOYEK

0NIYEK

1NIYEK

2NIYEK

3NIYEK3TUOYEK

ESNESPILF_51PG_CCA

MD_BSUPD_BSU

DI_DCL_21PG_PPA

0TUOYEK0NIYEK1NIYEK

0TUOYEK

1NIYEK0NIYEK

P1CIM

2TUOYEK

1TUOYEK

2DEL_YEK

1DEL_YEK

WLE

D4

WLE

D3

WLE

D2

WLE

D1

WLE

D5

GA

IN1

GA

IN2

SB

IAS

SE

NS

FLA

SH

_LE

D_T

OR

CH

FLA

SH

_LE

D_E

NF

LAS

H_L

ED

_IN

H

MIC

RO

SD

_CLK

AP

P_G

P13

_MC

_CLK

RE

T

SU

B_L

ED

MIC

RO

SD

_DA

T_D

IR

MIC

RO

SD

_CM

D_D

IR

CT

S_O

N

AP

P_A

CC

_UA

RT

_RX

AP

P_A

CC

_UA

RT

_TX

MO

TO

R_E

N

MO

TO

R_P

WM

SU

B_P

M_R

ES

ET

B

LCD

_PW

M

WLE

D_P

WR

MO

TO

R_P

WR

+

AP

P_I

2C_S

DA

AP

P_I

2C_S

CL

AP

P_G

P07

_3A

XIS

_IN

T

SIM

DA

TS

IMR

ST

_n

SIM

CLK MIC

RO

SD

_DA

T0

MIC

RO

SD

_DA

T1

MIC

RO

SD

_DA

T3

MIC

RO

SD

_DA

T2

MIC

RO

SD

_CM

D

N_TESER_DCL

N_SDA_DCLN_SC_DCLN_EW_DCL

MWP_DCL

RWP_DELW

4DELW3DELW2DELW1DELW

5DELW

MO

TO

R_P

WR

-

CNYSH_MAC_PMMCNYSV_MAC_PMM

ADS_C2I_PMM

KLCM_MAC_PMM

]0[ATAD_MAC_M5]1[ATAD_MAC_M5]2[ATAD_MAC_M5]3[ATAD_MAC_M5

]4[ATAD_MAC_M5]5[ATAD_MAC_M5]6[ATAD_MAC_M5]7[ATAD_MAC_M5

]9[ATAD_MAC_PMM]8[ATAD_MAC_PMM

]0[ATAD_MAC_PMM]1[ATAD_MAC_PMM]2[ATAD_MAC_PMM]3[ATAD_MAC_PMM

]4[ATAD_MAC_PMM]5[ATAD_MAC_PMM]6[ATAD_MAC_PMM]7[ATAD_MAC_PMM

KLCP_MAC_PMM

]8[ATAD_MAC_M5

]1[ATAD_MAC_M5

]3[ATAD_MAC_M5

]5[ATAD_MAC_M5

]7[ATAD_MAC_M5

]0[ATAD_MAC_M5

]2[ATAD_MAC_M5

]4[ATAD_MAC_M5

]6[ATAD_MAC_M5

]11[ATAD_MAC_PMM]01[ATAD_MAC_PMM

]11[ATAD_MAC_M5]01[ATAD_MAC_M5

LCS_C2I_PMM

]9[ATAD_MAC_M5]8[ATAD_MAC_M5

LCS_NOTTUB_HCUOT

TSR_HCUOTADS_NOTTUB_HCUOT

N_DR_DCLCNYSV_DCL

NDWP_MAC_PMM

N_TESER_MAC_PMM

]11[ATAD_MAC_M5]01[ATAD_MAC_M5]9[ATAD_MAC_M5

n_AWSNO

]0[ATAD_DCL]1[ATAD_DCL]2[ATAD_DCL

]4[ATAD_DCL

]6[ATAD_DCL

]3[ATAD_DCL

]5[ATAD_DCL

]7[ATAD_DCL

LCS_NEERCS_HCUOTADS_NEERCS_HCUOT

TNI_NEERCS_HCUOT

KLCP_IC

CNYSV_ICCNYSH_IC

n_SER_IC

LCS_C2I_PPAADS_C2I_PPA

FFO_OI_CV_12PG_CCA

1TUOYEK2TUOYEK4NIYEK5NIYEK

2D_IC3D_IC4D_IC5D_IC

7D_IC6D_IC

+VCR_KPS-VCR_KPS

+RWP_ROTOM-RWP_ROTOM

0KLCSYS

SAIBS

RWP_DELW

0TAD_DSORCIM

TADMIS

SNES

1NIAG

+RWP_ROTOM

1NIAG2NIAG

SAIBSSNES

0D_IC1D_IC

A_NICD

SUBV

NO_STC

XR_TRAU_CCA_PPAXT_TRAU_CCA_PPA

E_HSALFPPV

NE_RWP_MAC_PMM

NE_ODL_HCUOT_21PG_CCA

7. CIRCUIT DIAGRAM

LGE Internal Use OnlyCopyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 197: LG KF750 KF755c Secret Service Manual

- 198 -

01

4 8

E

43 5

G

8

A

11

G

A

7

21

1 11

F

6

D

C

01 2195

H

65

H

E

4 9

D

7

C

2

C

01

7

)oidaR MF+( htooteulB

D

2

11016

6 117

3

F

5 21

D

C

E

21

B

NOITPO PSSI

1

2

EGNAHC TON OD

B

F

G

21

E

1

H

9

3 8

G

F

43

8

9

retfihS leveL NEERCSHCUOT

H

608PT

8V1_EDDV

108PT

FR_TB_SSV

IND108C

408C

118PT

u1.0

FR_TB_SSV

IND118R

C81

0

1C3407-TB054212AED008LF5

1PB

4CD_PB2PB

2

3G

16

G2

1PB_U

0.1u

808C

C80

31n

H

u1.0

R80

22.

2K

908PT

208CHn9.3

IND218R

208TUO

8V1_EDDV

FR_TB_SSV

008CIND

R80

4

0

9EKLCS_MF

OIDS_MF8D

BNES_MF9D

4AAV_MFDV_MF

3B

OIV_MF6D

4D1CN2CN

7F8F

3CN4CN

4L

5CN5L6L

6CN

1DNG_MF3A4B

2DNG_MF3DNG_MF

6B7B

4DNG_MF4C

5DNG_MF6C

6DNG_MF7C

7DNG_MF8DNG_MF

5D

1OIPG_MF7A6A

2OIPG_MF3OIPG_MF

5A

TUOL_MF5B

KLCR_MF7D

8CDNGFR_MF

5CTUOR_MF

9CBTSR_MF

2F5ANASSV_TB6ANASSV_TB

3F4F

7ANASSV_TB8ANASSV_TB

1G3G

9ANASSV_TB

6H1GIDSSV_TB

7H2GIDSSV_TB3GIDSSV_TB

8H8K

4GIDSSV_TB8L

5GIDSSV_TB

1FRSSV_TB1H1L

2FRSSV_TB3FRSSV_TB

2J2K

4FRSSV_TB

PUEKAW_TB9L

8BPIMF_MF

6JSTR_TRAU_TB

DXR_TRAU_TB9H

7GDXT_TRAU_TB

DLC_DDV_TB6E

6MA_OIV_TBB_OIV_TB

9J

C_OIV_TB3N5N

D_OIV_TBE_OIV_TB

8G

1ANASSV_TB1D

01ANASSV_TB4G3H

11ANASSV_TB4H

21ANASSV_TB

2D2ANASSV_TB3ANASSV_TB

3E

4ANASSV_TB1F

4MKLC_MCP_TB

4NCNYS_MCP_TB

NI_KLC_FER_TB6F

LRTC_GER_TB4J

7KNTESER_TB

1JNFR_TBPFR_TB

1K

1LC_RVSR_TB2B3C

2LC_RVSR_TB8M

D_RVSR_TBMSD_RVSR_TB

1C2C

N_RVSR_TBFR_RVSR_TB

2M

1TSET_TB2H2G

2TSET_TB

STC_TRAU_TB6K

9G0_OIPG_TB

4K01_OIPG_TB

3K11_OIPG_TB

61_OIPG_TB3J3L

8_OIPG_TB

9_OIPG_TB3M

PUEKAW_TSOH_TB8E

1AVH_TB2L3D

2AVH_TB3AVH_TB

1E2E

4AVH_TB4E

5AVH_TBDVH_TB

7N

KLC_PL_TB9K

A_MCP_TB5K5M

B_MCP_TB

108U

GRP_FA_TB6G

1_NI_QER_KLC_TB7E9F

2_NI_QER_KLC_TB

7J1_TUO_QER_KLC_TB

8J2_TUO_QER_KLC_TB

1_GIFNOC_TB7L

2_GIFNOC_TB7M6N

3_GIFNOC_TB

C81

422

n

3952CLTS

u1

018PT

R80

8

100K

8V1_EDDV

218C

218PT

8V1_EDDV

57V2_KDDV

TABV

008LHn3.3

318PT

R80

70

C81

712

0p

408PT

57V2_KDDV

10p

108L

C81

6

p2.1

8V1_EDDV

8V1_EDDV

22n

C81

5

C80

90.

1u

008BF06

708PT

C80

60.

1u

R80

02K

01318R

01418R

2.2K

R80

1

u1.0318C

FR_TB_SSV

ANA_TB_SSV

TO

UC

H_3

.1V

u1118C

1A1A

2A2A

3A3A

A4

A4

1C1B

C2

B2

B3

C3

B4

C4

4BDNG

3BEO

VC

CA

B2

B1

VC

CB

ANA_TB_SSV

008URUXZE4010SXT

0.1u

C80

5

508R

0

1u

418PT

C80

7

308R

0

308TUO

108TUO

ADS_NEERCS_HCUOT_NI

TSR_HCUOT

NE_ODL_HCUOT_21PG_CCA

LCS_NEERCS_HCUOT

ADS_NEERCS_HCUOT

LCS_NEERCS_HCUOT_NI

PL_MFPR_MF

TESER_HCUOT_50PG_PPA

LCS_NEERCS_HCUOT_50PG_PPA

ADS_NEERCS_HCUOT_61PG_PPA

TNI_NEERCS_HCUOT

LCS_NEERCS_HCUOT_NI

ADS_NEERCS_HCUOT_NI

2OIPG_MF_61PG_CCA

1TAD_IPS_TB_52PG_CCA

KLC_IPS_TB_62PG_CCA

n0SC_IPS_TB_32PG_CCA0TAD_IPS_TB_42PG_CCA

LCS_NOTTUB_HCUOT

ADS_NOTTUB_HCUOT

n_1TUOSER

LCS_C2I_PPA

ADS_C2I_PPA

KLC_TB

TNA_MF

TNI_NEERCS_HCUOT_40PG_PPA

n_QERKLC_TB

TNI_IPS_TB_41PG_CCA

KLCCTR

DLD_MCP_CCADLU_MCP_CCA

KLC_MCP_CCACNYS_MCP_CCA

n_2TUOSER

KLCCTR

7. CIRCUIT DIAGRAM

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 198: LG KF750 KF755c Secret Service Manual

- 199 -

DNG

NI

TUO

H

EE

ROTCENNOC NIAM OT DRAOB_ECILS

8

6

DEL HSALF AREMAC

1

G

3

2

F

20.01.7002 DSORCIM ROF RETFIHS LEVEL

5

C

21

DEL BUS

2 7

G

H

4

F

9

2 7

D

BCP_TEKCOS

THGILKCAB DCL

E

B

6

E

DS ORCIM

C

93

F

21

3

1

G

4

54

9

C

8

B

01 21

F

5

3 01

8

PT noitcepsni tcudorP roF

G

MISU

7

H

11

8 9 01

A

1

C

2

retemorelecca-sixa-eerhT

11

6

6

TIUCRIC ROTOM

PT tset noitcennoc FCA roF

DD

307NC NIAM morF

D

H

114

017 115 21

A

rotalugeR tnerruC pU-petS

1

719PT

2DZ

R2TSC8.6BSRR2TSC8.6BSR

1DZ

R91

2

390

DNG34

TNI

1CN011

2CN

11N

OT

1N

OT

212

KCS6

8IDS

7ODS

2OIDDVDDV

9

051AMB109U

BSC5

57V2_BMS_HDDV

TABV

VD

DG

_2V

75

R93

0

0

VA

908

EV

LC18

S02

015

n22509C

03-SC125BR 539R0

VB

AT

129C

u1

CCVMIS

u1029C

R91

310

K

239R0

VD

DH

_SM

B_2

V75

1

VD

DE

_1V

8

R91

610

0K

009QU201XRK

2

54

3

319C

V8.2_DDV_AGV

57V2_GDDV

u10.0

709C

u1

0439R03-SC125BR

VA

910

EV

LC18

S02

015

V8.2_DDV_AGV

829R0

u2.2

CCVMIS

8V1_EDDV

519C

709PT

819C

DN

I

R94

2

u1

u1

309C

719C

TABV

u1.0

229C

019PT

u1

609PT

319PT

K15429R

100K

R93

8

009AV05020S41CLVE

u2.2429C

0

R91

1

34

5

6

V8.1_DDV_AGV

009D

F4050RLP

1

2

R?

DN

I

CCVMIS

TABV

609C

1KR92

3

p22

K001919R

519PT

909C

p33

DN

I

R91

0

529Cn74

EV

LC18

S02

015

VA

909

339R0

1uC91

1

919C

TABV

57V2_GDDV

R90

9D

NI

u1.0

139R0

VG

A_V

DD

_1.8

VV

GA

_VD

D_2

.8V

V1.3_HCUOT

5.1K

R92

0

R90

7

470K

909PT

8V1_EDDV

V1.3_HCUOT

KLC5

DMC3

0TAD78

1TAD1

2TAD2

3TAD

91DNG

012DNG

113DNG4DNG

21

DDV4

SSV6

009J

910

R92

7

509PT

K15529R

R? 0

KLC3

4DNG

1DNG78

2DNGO_I

62

TSR

1CCV

PPV5

05020S41CLVE109AV

109J

2 4 6 8

1 3 5 7

DN

I

R94

1

RA

1

100K

409Cu1.0

VA

907

EV

LC18

S02

015

009DL

109LHu1

109PT

209PT

009R

mho001

SIM

VC

C

TO

UC

H_3

.1V

929R0

C91

610

u

329Cu2.2

809PT

639R

0

110K

R92

6

EV

LC18

S02

015

VA

911

SAIBS5F

5DLCS

4DADS

5EDNGS

SNESS3F

A1

T1

A6

T2

T3

F6

F1

T4

4F1TABV

PCTABV5B

ODLTABV1E

6EOIV

4BTUOV

NIMWPW1D

57V2_BMS_HDDV

N3C4A

P3C5A

3ADNGPC

TNCHSALF3D

1CG4E3E

2CG

O1ODL2F

O2ODL2E

2D1DEL

2C2DEL3DEL

1C

4DEL1B

5DEL2B2A

LFDEL

3BDNGDEL

BTESER4C

LUG5906DB

309U

N1C6D5C

P1C

6CN2CP2C

6B

809C

p33

11

DNG9

15G

_SLU

G5NIXL

6

TUO87

DNGP

41TESR

V1.3_HCUOT

1T-OFI0721TAA

DNGA4

1TC

2TES_NE

NELF213

DNGLF

HNILF01

ATUOLF31

BTUOLF

119PT

409U

109DL

419PT

5 7

IND419C

2 4 6 8

1 3

1CSSAPYB

2BDNG

+NI2C

3CDDV-NI

3A

3B+OV

1A-OVNWODTUHS_

1B

RA

2

100K

RVQZ1A5026APT209U219Cu10.0

R94

0

100K

8V1_EDDV

200K

R93

7

009L

0

2CBDMC

RID_DMC5B

2BB0TADA0TAD

2DRID_0TAD

5C

RID_321TAD1C

A1TAD1D2A

B1TAD4B

B2TADA2TAD4C

4AA3TAD

4DB3TAD

1DNG3B

2DNG3C

5AACCV

5DBCCV

219PT

RYXZE604ACVA47NS009U

3AAKLC

3DBKLC

F_KLC1A

ADMC1B

109C

73 74 75 76 77 788 9

u1.0

6 60 61 62 63 64 65 66 67 68 697 70 71 7244 45 46 47 48 495 50 51 52 53 54 55 56 57 58 593 30 31 32 33 34 35 36 37 38 394 40 41 42 4315 16 17 18 192 20 21 22 23 24 25 26 27 28 29

CN

11 10 11 12 13 14

C

E

VA

905

EV

LC18

S02

015

E204CRK

109Q

B

3TAD_DSORCIM_LAERDMC_DSORCIM_LAER

0TAD_DSORCIM_LAER

ADS_BMS

KLC_DSORCIM_LAER

BTESER_MP_BUS

DMC_DSORCIM

0TAD_DSORCIM

1TAD_DSORCIM2TAD_DSORCIM

0TAD_DSORCIM_LAER

1TAD_DSORCIM_LAER2TAD_DSORCIM_LAER

DMC_DSORCIM_LAER

3TAD_DSORCIM_LAER

1TAD_DSORCIM_LAER2TAD_DSORCIM_LAER

HNI_DEL_HSALF

DEL_BUS

-RWP_ROTOM

+RWP_ROTOM

WLE

D3

WLE

D2

WLE

D1

WLE

D5

GA

IN1

GA

IN2

SB

IAS

SE

NS

FLA

SH

_LE

D_T

OR

CH

FLA

SH

_LE

D_E

NF

LAS

H_L

ED

_IN

H

MIC

RO

SD

_DA

T_D

IR

MIC

RO

SD

_CM

D_D

IR

CT

S_O

N

AP

P_A

CC

_UA

RT

_RX

AP

P_A

CC

_UA

RT

_TX

MO

TO

R_P

WR

+M

OT

OR

_PW

R-

MO

TO

R_E

N

MO

TO

R_P

WM

SU

B_P

M_R

ES

ET

B

LCD

_PW

M

WLE

D_P

WR

WLE

D4

SIM

DA

TS

IMR

ST

_n

SIM

CLK MIC

RO

SD

_DA

T0

MIC

RO

SD

_DA

T1

MIC

RO

SD

_DA

T3

MIC

RO

SD

_DA

T2

MIC

RO

SD

_CM

D

MIC

RO

SD

_CLK

AP

P_G

P13

_MC

_CLK

RE

T

SU

B_L

ED

0TAD_DSORCIM

TADMIS

SNES

1NIAG

ADS_C2I_PPAADS_BMSLCS_C2I_PPALCS_BMS

MWP_ROTOM

HCROT_DEL_HSALFNE_DEL_HSALF

AP

P_I

2C_S

DA

AP

P_I

2C_S

CL

AP

P_G

P07

_3A

XIS

_IN

T

KLC_DSORCIM

3TAD_DSORCIM

NO_STC

XR_TRAU_CCA_PPA

XT_TRAU_CCA_PPA

ADS_MP_BUSLCS_MP_BUS

SAIBS

+RWP_ROTOM

RWP_DELW2DELW3DELW4DELW5DELW

SNES

n_TSRMISTADMIS

KLC_DSORCIM_LAER

TERKLC_CM_31PG_PPA

RID_DMC_DSORCIM

RID_TAD_DSORCIM

MWP_DCL

LCS_MP_BUSADS_MP_BUS

1NIAG

SAIBS

NE_ROTOM

1DELW

n_TSRMIS

KLCMISTADMIS

KLCMIS

TNI_SIXA3_70PG_PPALCS_BMS

2NIAG

RWP_DELW

7. CIRCUIT DIAGRAM

LGE Internal Use OnlyCopyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 199: LG KF750 KF755c Secret Service Manual

- 200 -

44PIN_CONNECTOR_Female_1T

ON_SW KEY

From Slide FPCB CN1005

5

6

1

7 11

8

MULTI_KEY

8 9 11 12

MULTI EL

ISSP

G

B

C C

53 10

4 10

C

12

E

F

HV_OUT_PAD& BP_PAD SIZE

H

D

1.7X1.4mm

1

2

LCD INTERFACELCD LDO

TOUCH_CONNECTOR

9

3 6

D

G

6

10 11

H

5

F

A

E

F

7

83

11

2 4

1

C

12

D

H

EL DWONLOAD& TEST POINT

3

A

4

92

B

D

H

5 12

GG

E E

F

8

10

I2C

1

D5

G

S1 S2

R91

556

K

Q900SIA450DJ

D1 D2 D3 D4

OU

T90

5

EV

LC14

S02

050

VA

901

R90

9

0

C9010.1u

OU

T90

7

TOUCH_3.1V

OU

T91

3

VA

904

EV

LC14

S02

050

EL_

G2

OU

T91

2

R90

6

4.7K

ICV

N05

05X

150F

RV

A90

5

TP902

TP905

TP111TP108

R904 51K

HVOUT7

5HVOUT8

4HVOUT9

NC113

NC216

NC31823

NC4

25NC5

33SLUG

VBIAS26

VDD20

14VPP

22_LE

21_POL

24

GND15

HVGND27

HVOUT112

3HVOUT10HVOUT11

2HVOUT12

132

HVOUT13

31HVOUT14

30HVOUT15

29HVOUT16

HVOUT21110

HVOUT3

9HVOUT4HVOUT5

8HVOUT6

76

HV509U900

BP28

19CLK

DIN17

DOUT

EV

LC14

S02

050

VA

903

2.2uC902

EV

LC14

S02

050

VDDE_1V8

VA

902

OU

T90

1

470pFC903

CLR

VREG_6.1V

4.7K

R90

2

0.1u

C90

8

TP908

TP906

EL_

G3

R90010K

10K R901

C9000.1u

3

4INOUT_A4

9INOUT_B1

INOUT_B28

7INOUT_B3

INOUT_B46

TP907

FL901ICVE10184E150R500FR

G1

5

G2

10

INOUT_A11

2INOUT_A2

INOUT_A3

4.7K

R90

7

OU

T90

4

TOUCH_3.1V

6789

TP106

313233343536373839

44041424344

5

171819

2

202122 23

242526272829

3

30

CN9021

10111213141516

OU

T90

0

6

7 8

9

15 16

17 18

OU

T90

9

1

10

11

12

13

14

2

3

4

5

VREG_6.1V

CN901

R91

3

100K

10M

R91

0

P2_422

P2_53

23P2_6

2P2_7

P3_018

P3_17

19P3_2

6P3_3

28V

DD

32V

SS

1

12V

SS

2

17XREX

26P

0_4

30P

0_5

P0_

627

P0_

729

P1_

013

P1_

111 14

P1_

2

10P

1_3

P1_

415

P1_

59 16

P1_

6

8P1_7

P2_020

P2_15

21P2_2

4P2_3

VDDE_1V8

U901CY8C21434

33G

ND

P0_024

P0_11

P0_

225

P0_

331

TP112

3637

45

67

89

TP107

2122

2324

2526

2728

29

3

3031

3233

3435

1

1011

1213

1415

1617

1819

2

20

OU

T90

2

CN900

3INOUT_A3

INOUT_A44

INOUT_B19

8INOUT_B2

INOUT_B37

6INOUT_B4

OU

T91

4

ICVE10184E150R500FR FL900

5G

110

G2

1INOUT_A1

INOUT_A22

OU

T91

0

END

VA900

ICVS0514X350FR

DN

I

R90

5

EL_

G1

8

7INOUT_B3

INOUT_B46

OU

T91

1

FL902ICVE10184E150R500FR

G1

5

G2

10

INOUT_A11

2INOUT_A2

INOUT_A33

4INOUT_A4

9INOUT_B1

INOUT_B2

OU

T90

3

OU

T90

8

0.1u

TP903

TOUCH_3.1V

C906

TP105

VD

D_L

CD

_2.6

V

TOUCH_3.1V

TP109

0.1uC907

D900

RB521S-30

VA

906

ICV

N05

05X

150F

R

VDDE_1V8

VDD_LCD_2.6V

RF051VA2S

D901

0.1u

C90

4

100K

R912150pC905

OK

VREG_6.1V

TP103

100uHL900

OU

T90

6

TOUCH_3.1V

SEND

TO

UC

H_R

ST

TO

UC

H_B

UT

TO

N_S

DA

TO

UC

H_B

UT

TO

N_S

CL

TO

UC

H_S

CR

EE

N_S

DA

TO

UC

H_S

CR

EE

N_S

CL

HV_OUT_5HV_OUT_6HV_OUT_7HV_OUT_8HV_OUT_9

HV_OUT_13HV_OUT_14

BP

HV_OUT_2HV_OUT_3HV_OUT_4

TOUCH_SCREEN_SCL TOUCH_RST

TOUCH_SCREEN_SDATOUCH_SCREEN_SCL

APP_GP12_LCD_ID

APP_GP12_LCD_ID

HV_OUT_10HV_OUT_11HV_OUT_12

TOUCH_RST

TOUCH_SCREEN_INT

TOUCH_SCREEN_SCL

TOUCH_SCREEN_SDA

LCD_RESET_N_OUT

TOUCH_BUTTON_SCLTOUCH_BUTTON_SDA

TOUCH_SCREEN_INTTOUCH_SCREEN_SDA

WLED1

LCD_RESET_N

LCD_ADS_NLCD_CS_NLCD_WE_N

LCD_PWM

TOUCH_BUTTON_SDATOUCH_BUTTON_SCL

WLED3WLED4WLED5

WLED_PWR

KEYIN4KEYIN5

ONSWA_n

KEYOUT1KEYOUT2

LCD_VSYNCLCD_RD_N

WLED2

LCD_DATA[1]LCD_DATA[2]LCD_DATA[3]

LCD_DATA[0]LCD_DATA[1]LCD_DATA[2]

LCD_DATA[4]

LCD_DATA[6]

LCD_DATA[3]

LCD_DATA[5]

LCD_DATA[7]

HV

_OU

T_4

HV

_OU

T_3

HV

_OU

T_2

ONSWA_n

LCD_RESET_NLCD_WE_N

LCD_ADS_NLCD_CS_N

LCD_RESET_N_OUT

LCD_ADS_N_OUTLCD_CS_N_OUT

LCD_WE_N_OUT

LCD_DATA[4]LCD_DATA[5]LCD_DATA[6]LCD_DATA[7]

LCD_DATA[0]

LCD_DATA[4]_OUTLCD_DATA[5]_OUTLCD_DATA[6]_OUTLCD_DATA[7]_OUT

BPHV

_OU

T_1

4H

V_O

UT

_13

HV

_OU

T_1

2H

V_O

UT

_11

HV

_OU

T_1

0H

V_O

UT

_9H

V_O

UT

_8H

V_O

UT

_7H

V_O

UT

_6H

V_O

UT

_5

LCD_DATA[1]_OUTLCD_DATA[0]_OUT

WLED5WLED4WLED3WLED2WLED1

WLED_PWR

LCD_VSYNCLCD_RD_N

LCD_WE_N_OUTLCD_ADS_N_OUT

LCD_DATA[0]_OUTLCD_DATA[1]_OUTLCD_DATA[2]_OUTLCD_DATA[3]_OUT

ONSWA_n

KEYIN5

KEYIN4

KEYOUT2

KEYOUT1

KEYOUT2KEYOUT1

KEYIN4KEYIN5

LCD_CS_N_OUT

LCD_DATA[7]_OUT

LCD_PWM

LCD_DATA[6]_OUTLCD_DATA[5]_OUTLCD_DATA[4]_OUTLCD_DATA[3]_OUTLCD_DATA[2]_OUT

7. CIRCUIT DIAGRAM

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 200: LG KF750 KF755c Secret Service Manual

- 201 -

8

21

A

YEK_NIAM

2

G

E

5TOH

4

11

8

21

G

4

D

6

A

BB

F

H

61

11

5

7

73

D

21

11

F

YEK_REBMUN

E

72

TCETED EDILS

6

8

85 7

G

gnideeF annetnA

elameF_ROTCENNOC YEK_NIAM

1

21

54

01

3

8

C

6

9

0

C

H

2

01

1 01

E

009NC BCP tekcoS morF

7 9

4TOH

9

E

C

D

3

HH

C

D

1 6

eniL mm51.0 : DNGD etarepeS

CIM

32

32

4

9

DEL YEK_NIAM

11

9

G

5

1

F

5

F

4

01

VA

104

EV

LC14

S02

050

EV

LC14

S02

050

VA

106

n74601C

401

VA

108

EV

LC14

S02

050

8V1_EDDV

501C

u01 p74

501

401C

VA

103

4TUO

DDV1

011

EV

LC14

S02

050

5MB21006KT101U

21DNG

52DNG

6DDV_OI

CN3

201R

mho001

1L

Hn4.2

311C

p57.0

4

101TUO

101CIM

3-BP-5EH4020MPS

1G2

2G3

O1

P

4G3G

VA

107

EV

LC14

S02

050

5161718191202

3456789

2G1G1NC

1

1101213141

211C

8V1_EDDV

601

u1.0

EV

LC14

S02

050

VA

101

u1.0

VB

AT

mho001

101R

23

4

901C

1011WS

1

p5.0411C

201TUO

301201

701

n74801C

VA

105

EV

LC14

S02

050

201TOH101TOH

TNA1G2G

2 4 6 8

1 3 5 7

101WS10-E100-97202

K01

101AR

RS

B6.

8CS

T2R

ZD

101

ZD

102

RS

B6.

8CS

T2R

EV

LC14

S02

050

VA

102

57V2_GDDV

101

57V2_GDDV

1

A

2

C

101DL

7001STWS-CSS

1

A

2

C

0081301R

7001STWS-CSS

201DL

0081401R

EMOH

801

ITLUM

901

VB

AT

511CIND

P1CIM

N1CIM

1OCC

3NIYEK2NIYEK1NIYEK0NIYEK

N1CIMP1CIM

4TUOYEK

8V1_EDDV

2DEL_YEK

1TUOYEK2TUOYEK

3NIYEK

2TUOYEK

3TUOYEK

3NIYEK

1TUOYEK

4TUOYEK

2DEL_YEK

1DEL_YEK

1OCC

3NIYEK2NIYEK1NIYEK0NIYEK

1TUOYEK2TUOYEK4TUOYEK3TUOYEK

2NIYEK

0NIYEK

1NIYEK

ESNESPILF_51PG_CCA

1TUOYEK

3TUOYEK

2TUOYEK

4TUOYEK

3NIYEK

3TUOYEK

ESNESPILF_51PG_CCA

1DEL_YEK

7. CIRCUIT DIAGRAM

LGE Internal Use OnlyCopyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 201: LG KF750 KF755c Secret Service Manual

- 202 -

1 21

1

B

ECAFRETNI AREMAC AGV

1059100YBNE

G741027KXA

72

A

BB

2

C

D

E

D

E

B

C

E

8

F

3

G

H

21

C

11

H

3

DAP_rekaepS

elaM_ROTCENNOC EDILS

T1_ELAM_ROTCENNOC_NIP 44

D

E

F

G

D

A

51

4

92

8 2111

A

6 87 1101

F

G

7 9

4

H

3

rosneS thgiL tneibmA

21

BCPF_edilS_NIAM

6554

01

1

9876

11019

54

C

32

F

G

H

A

6 01

8V1_EDDV

40414243444

56789

201RK11

62728292

3

03132333435363738393

01112131415161718191

2

0212

32224252

801NC1

VD

D_L

CD

_2.6

V

V1.3_HCUOT

37475767778797

8

08

9

101PT

95

6

06162636465666768696

7

071727

445464748494

5

051525354555657585

3

03132333435363738393

4

14042434

5161718191

2

02122232425262728292

601NC1

0111213141

301PT

VR

EG

_6.1

V

6001C

u1.0

73

CCV

101C

u1

101UCVF0061HB

1CG56

2CG2

DNGTUOI

1

41CN2CN

u1.0

201C

001PT

1

2

V1.6_GERV

101NC

701NC12

4G3G

V8.2_DDV_AGV

5161718191202

3456789

2G1G 401NC1

1101213141

301Cu1.0

TO

UC

H_3

.1V

VG

A_V

DD

_2.8

V

VG

A_V

DD

_1.8

V

201PT

2D_IC

5D_IC

V8.1_DDV_AGV

VD

D_L

CD

_2.6

V

8V1_EDDVDI_DCL_21PG_PPA

DI_DCL_21PG_PPA

CNYSH_IC

n_SER_IC

CNYSV_IC

6D_IC7D_IC

ADS_C2I_PPALCS_C2I_PPA

3D_IC

1D_IC

4D_IC

CNYSV_DCLN_DR_DCL

2DELW1DELW

N_TESER_DCL

N_SDA_DCLN_SC_DCLN_EW_DCL

MWP_DCL

N_SDA_DCLN_SC_DCLN_EW_DCL

MWP_DCL

RWP_DELW

4DELW3DELW2DELW1DELW

5DELW

TSR_HCUOT

3DELW4DELW5DELW

RWP_DELW

4NIYEK5NIYEK

n_AWSNO

1TUOYEK2TUOYEK

CNYSV_DCLN_DR_DCL

N_TESER_DCL

LCS_NEERCS_HCUOT

LCS_NOTTUB_HCUOTADS_NOTTUB_HCUOT

]0[ATAD_DCL]1[ATAD_DCL]2[ATAD_DCL

]4[ATAD_DCL

]6[ATAD_DCL

]3[ATAD_DCL

]5[ATAD_DCL

]7[ATAD_DCL

7D_IC6D_IC

+VCR_KPS-VCR_KPS

+RWP_ROTOM-RWP_ROTOM

TSR_HCUOT

TNI_NEERCS_HCUOTADS_NEERCS_HCUOT

CNYSV_IC

KLCP_IC0KLCSYS

1NIAG2NIAG

SAIBSSNES

0D_IC1D_IC2D_IC3D_IC4D_IC5D_IC

n_AWSNO

5NIYEK4NIYEK2TUOYEK1TUOYEK

FFO_OI_CV_12PG_CCA

ADS_C2I_PPALCS_C2I_PPA

n_SER_IC

CNYSH_IC

TNI_NEERCS_HCUOTADS_NEERCS_HCUOT

LCS_NEERCS_HCUOT

]7[ATAD_DCL

]5[ATAD_DCL

]3[ATAD_DCL

]6[ATAD_DCL

]4[ATAD_DCL

]2[ATAD_DCL]1[ATAD_DCL]0[ATAD_DCL

FFO_OI_CV_12PG_CCA0KLCSYS

KLCP_IC

+VCR_KPS

-VCR_KPS

-RWP_ROTOM

1NIAG2NIAG

SAIBSSNES

+RWP_ROTOM

0D_IC

ADS_NOTTUB_HCUOT

LCS_NOTTUB_HCUOT

7. CIRCUIT DIAGRAM

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 202: LG KF750 KF755c Secret Service Manual

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

8. BGM Pin Map

- 203 -

8. BGM Pin Map

DBB IC : DB3150 R3A (top view)

Use

Don't Use

Page 203: LG KF750 KF755c Secret Service Manual

- 204 -

8. BGM Pin Map

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

ABB IC : AB3000 R2A (top view)

Use

Don't Use

Page 204: LG KF750 KF755c Secret Service Manual

- 205 -

8. BGM Pin Map

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Memory IC : KAL00900BM-DJ55 (top view)

Use

Don't Use

Page 205: LG KF750 KF755c Secret Service Manual

- 206 -

8. BGM Pin Map

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

ZORAN IC : ZR3453X (top view)

Use

Don't Use

Page 206: LG KF750 KF755c Secret Service Manual

- 207 -

8. BGM Pin Map

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Bluetooth IC : STLC2593 (top view)

Use

Don't Use

Page 207: LG KF750 KF755c Secret Service Manual

- 208 -LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 208: LG KF750 KF755c Secret Service Manual

- 209 -

9. PCB LAYOUT

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

<FPCB Connector>LCD assembly status

Connector combination

<Touch Screen level shifter>Touch operation

<ACF connector>Socket PCB connection

<CAM LDO>Camera operation

<DC/DC for Zoran>Zoran operation

<X-tal>Check the freq. 27MHz

<ZORAN>Multi Media chipset

<DC/DC for PA>WCDMA Tx operation

<WCDMA PA>WCDMA Tx amplifier operation

<X-tal>Check the freq. 26MHz

<GSM Transceiver>Check Rx/Tx operation

<WCDMA Transceiver>Check Rx/Tx operation

<GSM Rx SAW filter>Check Rx operation

<GSM PA + ASM>Tx amplifier and antenna

switch operation

<OVP>Check VCHG output

Page 209: LG KF750 KF755c Secret Service Manual

- 210 -

9. PCB LAYOUT

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

<5M CAM Connector>5M camera operation

<DC/DC for EL>EL operation

<Touch LDO>Touch operation

<LCD LEO>LCD operation

<USB Transceiver>USB operation

<Headset Mic LDO>Headset operation

<Headset filter>Headset operation

<EMI/ESD filter>UART/Charging operation

<MiainKey Connector>Numeric Key & SideKey

<Headset filter>Headset operation

<Speaker Amp>Speaker operation

<Backup Battery>RTC clock operation

<Bluetooth IC>B/T & FM radio operation

<X-tal>RTC clock (32.768kHz)

<SideKey>Volume up/down operation

<Battery Connector>Power supply

<PMIC & Audio IC>Check output of LDO

Check audio path

<Memory (2G/1G)>

<DBB (DB3150) >

Page 210: LG KF750 KF755c Secret Service Manual

- 211 -

9. PCB LAYOUT

LGE Internal Use OnlyCopyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

<ACF connector>Main & Socket PCB connection

Page 211: LG KF750 KF755c Secret Service Manual

- 212 -

9. PCB LAYOUT

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

<3 axis accelerometer>Motion sensor operation

<SIM socket>Socket soldering

<u-SD card socket>Socket soldering

<Level shifter>u-SD card level shifter

<Sub LED>CAM flash & trickling charge

<LDO for flash LED>Flash LED operation

<Flash LED>CAM flash operation

<LDO for LCD backlight>LCD operation

<Motor operating IC>Motor operation

Page 212: LG KF750 KF755c Secret Service Manual

- 213 -

9. PCB LAYOUT

LGE Internal Use OnlyCopyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

Page 213: LG KF750 KF755c Secret Service Manual

- 214 -

9. PCB LAYOUT

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

<FPCB connector>LCD assembly status

Connector combination

<EL driver IC>EL operation

<LCD connector>LCD operation

<Touch Connector>Touch operation<EL operating IC>

EL operation

Page 214: LG KF750 KF755c Secret Service Manual

- 215 -

9. PCB LAYOUT

LGE Internal Use OnlyCopyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

<MainKey Connector>Number & sidekey operation

<MainKey LED>MainKey backlight

<Touch&Multi sidekey>

<CAM sidekey>Camera operation

<Mic>Voice input

<Hall IC>Slide detect

Page 215: LG KF750 KF755c Secret Service Manual

- 216 -

9. PCB LAYOUT

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

<Antenna Connector>Antenna connection

Page 216: LG KF750 KF755c Secret Service Manual

- 217 -

9. PCB LAYOUT

LGE Internal Use OnlyCopyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes

<FPCB connector>LCD assembly status

Connector combination

<FPCB Connector>LCD assembly status

Connector combination

<Ambient Light Sensor>ALC operation

<Spk/Receiver connector>Speaker operation

Page 217: LG KF750 KF755c Secret Service Manual

- 218 -LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

<VGA CAM connector>VGA operation <Motor pad>

Check soldering

Page 218: LG KF750 KF755c Secret Service Manual

- 219 -

10. Calibration

10. Calibration

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

10.1 General Description

This document describes the installation and software usage for the calibration of LG°Øs

GSM/GPRS/EDGE/WCDMA Multimedia Mobile Phone. The calibration menu and it°Øs result is

displayed in PC terminal by Mobile phone.

10.2 Environment

10.2.1 H/W Environment

- PC with RS-232 Interface & GPIB card installed

- GSM/GPRS/EDGE/WCDMA Multimedia Mobile Set

- Agilent 8960 Series 10 E5515C Instrument (E1987A ver A.05.28)

- Tektronix PS2521G Power Supply or Agilent A66311B

- ETC (GPIB cable, Serial cable, RF cable, Power cable, Dummy battery)

10.2.2 S/W Environment

- National Instrument GPIB & VISA (ver 2.60 full) driver install

- Agilent 8960 VXI driver(E1960) install

- Hot Kimchi EXE files

- OS : Window98, Window2000, WindowXP

10.2.3 Configuration Diagram of Calibration Environment

KF750

Figure 10-1. Calibration Configuration Figure

Page 219: LG KF750 KF755c Secret Service Manual

- 220 -

10. Calibration

10.3 Calibration Environment

Ensure that the following conditions are maintained throughout the duration of the tests and

calibrations described within this document.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

A30Supply current

V3.83.73.6Vbatt

%754020Relative Humidity

°C302515Temperature

UnitMaxTypMinParameter

Table 10-1. Nominal Environmental Test Conditions

Page 220: LG KF750 KF755c Secret Service Manual

- 221 -

10. Calibration

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

10.4 Program Operation

10.4.1 Hot Kimchi Program Overview

When trying to calibrate the mobile phone, the service engineers make a configuration of calibration

environment like Figure10-1. And if you finish making configuration, please execute the Hot Kimchi

program. See Figure10-2.

Hot Kimchi supports following functions.

- Calibration of EGSM 900, DCS 1800, PCS1900, and WCDMA

- Instrument (Agilent8960, Tektronix PS2521G) control

- UART communication with mobile phone

Figure 10-2. Hot Kimchi Window

Page 221: LG KF750 KF755c Secret Service Manual

- 222 -

10. Calibration

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

10.4.2 Setting

Select a ezlooks

Select Off-line in the EZLOOKS MODE.

Page 222: LG KF750 KF755c Secret Service Manual

- 223 -

10. Calibration

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Select a Line System

Select Manual in the RUN MODE.

Select your com port appropriately.

Page 223: LG KF750 KF755c Secret Service Manual

- 224 -

10. Calibration

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Select a Logic Operation

Select Logic Mode you want.

1. CAL only

2. AUTO only

3. CAL + AUTO

Select your com port appropriately.

MONitor Port is to communicate with 2.5G mobile phone

Page 224: LG KF750 KF755c Secret Service Manual

- 225 -

10. Calibration

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

10.4.3 Calibration Procedure

Select a model name - KF750.

Click the START button.

Page 225: LG KF750 KF755c Secret Service Manual

- 226 -

11. Stand-alone Test

11.1 General Description

1) General Description

This document describes the installation and software usage for the stand-alone test of LG’s

GSM/GPRS/EDGE/WCDMA Mobile Phone. The test menu and it’s result is displayed in PC terminal

by Mobile phone.

This test software was called “XCALMON(eXtended CALibration and MONitor program)”. XCALMON

can support both calibration and test.

This test software includes GSM, DCS, PCS, EDGE, and WCDMA Band test.

2) XCALMON Environment

H/W Environment

- PC with RS-232 Interface & GPIB card installed

- GSM/GPRS/EDGE/WCDMA Mobile Set

- Agilent 8960 Series 10 E5515C Instrument (E1987A ver A.05.28)

- Tektronix PS2521G Power Supply or Agilent A66311B

- ETC (GPIB cable, Serial cable, RF cable, Power cable, Dummy battery)

S/W Environment

- National Instrument GPIB & VISA (ver 2.60 runtime) driver install

- Agilent 8960 VXI driver(E1960) install

- XCALMON EXE files

- OS : Window98, Window2000, WindowXP

- Serial port configuration

Baud rate: 115200 / Char length: 8bit / No Parity/ No Flow control / Stop bits: 1 bit

3) Configuration Diagram of Test Environment

11. Stand-alone Test

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

KF750

Page 226: LG KF750 KF755c Secret Service Manual

- 227 -

11. Stand-alone Test

11.2 Program Operation

1) XCALMON Program Overview

When trying to test the mobile phone, the service engineers make a configuration of calibration

environment like previous figure. And if you finish making configuration, please execute the XCALMON

program. Running the XCALMON program, you will see XCALMON program window like below.

If XCALMON program would be executed, it checks the connection of instruments and initializes them

automatically.

XCALMON supports following functions.

- Test of EGSM 900, DCS 1800, PCS1900, GSM850 and WCDMA

- Instrument (Agilent8960, Tektronix PS2521G) control

- UART communication with mobile phone

XCALMON has three windows and each window support different function.

- Command window which supports interactive ITP commands like Hyper terminal

- Calibration tree window

- Quick Command mode window

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11. Stand-alone Test

2) XCALMON Icon Description

A. DOS Window IconWhen you click the DOS window icon, then you should see the ITP command window like DOS

window of DOS-operating system. In ITP command window, you can communicate with a mobile

phone which is running in ITP mode.

For example, if you will enter command “VERS” and enter the return key, you should get the response

of the present running ITP version information from a mobile phone.

B. Calibration Tree Window IconWhen you click the calibration window icon “C”, then you see the calibration tree window. That will be

shown all calibration items. If you want to calibrate a mobile phone for all calibration items, you should

select ‘Calibration” and push “F4” button in your keyboard.

Also there are four tap view in calibration window.

- OUTPUT : All results of calibration. See figure 9-4

- STATUS : Summary of Test result

- INSTRUMENT : Control and view instrument connection status. See figure 9-5

- PC SETTING : Control and view UART connection status. See figure 9-6

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

XCALMON ITP Command Window

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11. Stand-alone Test

C. Quick Command mode window IconWhen clicking the Quick command mode window icon “Q”, then you find out the Quick Command

mode window. That window is for test of the mobile phone.

D. ITP Starting Window Using Production LoaderWhen clicking the ITP starting window icon “L”, then you find out the ITP starting window. That dialog

window just waits for power-on of the mobile phone. When it will occur power-on, it automatically start

ITP running.

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

XCALMON Quick Command mode Window

XCALMON ITP Starting Window (Using Production Loader)

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11. Stand-alone Test

11.3 Stand-alone Test

1) Test Procedure

Test procedure of XCALMON is the same as below procedure.

- Configuration of test environment

- Running ITP using preloader and production loaders

- Verification of stand-alone test by Quick Command mode

A. Configuration of test environment

Configure to test the mobile phone like 12.1. If configuration will be accomplished, XCALMON program

will be started.

B. Running ITP Using Preloader and Production Loaders

If XCALMON will be executed, you should run ITP using “L” ITP starting icon at first.

Click the “L” icon, then you will see the ITP start window like 12-2 D.

When you will turn on the mobile phone, the loaders will be downloaded automatically like below figure

and then it will execute the ITP at once.

4 loaders are needed and exists in the folder “loader”. And all you have to do is select the profile

“KF750_KT520_20080412.prfl” If the ITP will operate normally, you should see the characters “TP,

OK” in ITP command window like 12-2 A.

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

Loader downloading

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11. Stand-alone Test

2) Test

If you want to test a mobile phone, click the Quick command mode icon “Q”.

A. Select System

You can select the GSM or WCDMA system.

B. Select Band

You can select the GSM quad band or WCDMA band.

C. Testing Channel

You can select only one channel.

D. RF operation

You can select Rx or Tx.

If you select all item and click test, you can find out result “pass or fail”.

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6

54

3 2

1

7

8

9

10

11

15

1617

1875

76

19

31

32

36

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3433

30

20

26

27

51

5657 58 59 60 61

70

71

73

72

5553

5452

62

63

64

65

66

67

45

4468

4847

46

50

49

6944

74

42

43

41

403938

2122

2425

23

29

28

12

13

14

12. EXPLODED VIEW & REPLACEMENT PART LIST

12.1 EXPLODED VIEW

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38

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16

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11

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8

7

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5

4

3

2

1

12. EXPLODED VIEW & REPLACEMENT PART LIST

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12. EXPLODED VIEW & REPLACEMENT PART LIST

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12.2 Replacement Parts<Mechanic component>

Note: This Chapter is used for reference, Part orderis ordered by SBOM standard on GCSC

LevelLocation

NoDesciption Part Number Spec Color Remark

2 AAAY00 ADDITION AAAY0304201 Without Color

3 ACGA00 COVER ASSY,BATTERY ACGA0021501 Black 69, 70

4 MCJA00 COVER,BATTERY MCJA0064801 PRESS, STS, , , , , Without Color

4 MLEA00 LOCKER,BATTERY MLEA0045801 MOLD, POM TX-31, , , , , Black

2 APEY00 PHONE APEY0553901 Black

3 ACGM COVER ASSY,REAR ACGM0107001 Black

4 ADBY00 DECO ASSY ADBY0011901 Black

5 MDAD00 DECO,CAMERA MDAD0035301 ELECTROFORMING, Cu, 0.2, , , , Silver 65

5 MDAK00 DECO,REAR MDAK0014501 MOLD, PC LUPOY SC-1004A, , , , , Black

5 MLCE00 LENS,FLASH MLCE0008901 MOLD, PC LEXAN 141R, , , , , Without Color 73

5 MPBT00 PAD,CAMERA MPBT0053401 COMPLEX, (empty), 0.7, , , , Without Color 76

5 MTAA00 TAPE,DECO MTAA0152901 COMPLEX, (empty), , , , , Without Color 64

5 MTAD00 TAPE,WINDOW MTAD0081101 COMPLEX, (empty), , , , , Without Color 66

5 MWAE00 WINDOW,CAMERA MWAE0032401 MOLD, Tempered Glass, 0.5, , , , Black 67

4 MBJL00 BUTTON,SIDE MBJL0052201 COMPLEX, (empty), , , , , Silver

4 MBJL01 BUTTON,SIDE MBJL0052001 COMPLEX, (empty), , , , , Black 58, 59

4 MBJL02 BUTTON,SIDE MBJL0052101 COMPLEX, (empty), , , , , Black 57

4 MCCC00 CAP,EARPHONE JACK MCCC0052301 MOLD, Urethane Rubber S190A, , , , , Black 54

4 MCCF00 CAP,MOBILE SWITCH MCCF0052201 COMPLEX, (empty), , , , , Black

4 MCJN00 COVER,REAR MCJN0080501 MOLD, PC LUPOY SC-1004A, , , , , Black 55

4 MGAD00 GASKET,SHIELD FORM MGAD0168201 COMPLEX, (empty), , , , , Gold

4 MLEA00 LOCKER,BATTERY MLEA0045701 MOLD, PC LUPOY SC-1004A, , , , , Without Color

4 MPBH00 PAD,MIKE MPBH0037901 COMPLEX, (empty), , , , , Without Color 44

4 MPBU00 PAD,CONNECTOR MPBU0032501 COMPLEX, (empty), , , , , Black

4 MPBU01 PAD,CONNECTOR MPBU0032901 COMPLEX, (empty), , , , , Black

4 MPBZ00 PAD MPBZ0200401 COMPLEX, (empty), , , , , Without Color

4 MPBZ01 PAD MPBZ0200501 COMPLEX, (empty), , , , , Without Color 75

4 MSDB00 SPRING,COIL MSDB0005501 COMPLEX, (empty), , , , , Black

4 MSDD00 SPRING,PLATE MSDD0006801 PRESS, BeCu, , , , , Gold

4 MTAA00 TAPE,DECO MTAA0152601 COMPLEX, (empty), 0.1, , , , Without Color 63

4 MTAB00 TAPE,PROTECTION MTAB0218501 COMPLEX, (empty), , , , , Without Color 77

4 MTAC00 TAPE,SHIELD MTAC0071601 COMPLEX, (empty), , , , , Gold

3 ACGQ00 COVER ASSY,SLIDE ACGQ0023401 Black

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12. EXPLODED VIEW & REPLACEMENT PART LIST

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LevelLocation

NoDesciption Part Number Spec Color Remark

4 ACGK00 COVER ASSY,FRONT ACGK0105601 Black

5 MCJK00 COVER,FRONT MCJK0083501 MOLD, PC LUPOY SC-1004A, , , , , Black 38

5 MFBD00 FILTER,MIKE MFBD0028301 COMPLEX, (empty), , , , , Without Color 43

4 ACGS00COVERASSY,SLIDE(UPPER)

ACGS0020201 Silver

5 ABGG00 BUTTON ASSY,SUB ABGG0001801 SEND/END Silver 2

5 ACGS00COVERASSY,SLIDE(UPPER)

ACGS0016501 Silver

6 ADBY00 DECO ASSY ADBY0011801 UPPER Black

7 MDAP00 DECO,SLIDE(UPPER) MDAP0001801 MOLD, PC LUPOY SC-1004A, , , , , Black 4

7 MTAK00 TAPE,CAMERA MTAK0007301 COMPLEX, (empty), 0.1, , , , Without Color 15

7 MWAE00 WINDOW,CAMERA MWAE0032301 CUTTING, PMMA MR 200, 0.8, , , , Without Color 17

6 MCJW00 COVER,SLIDE(UPPER) MCJW0016801 CASTING, Al Alloy, , , , , Black 9

6 MDAN00 DECO,SPEAKER MDAN0013901 ELECTROFORMING, Cu, , , , , Silver 6

6 MFBC00 FILTER,SPEAKER MFBC0036901 COMPLEX, (empty), , , , , Without Color 14

6 MTAA00 TAPE,DECO MTAA0152501 COMPLEX, (empty), 0.1, , , , Without Color 7

5 MTAB00 TAPE,PROTECTION MTAB0212201 COMPLEX, (empty), , , , , Without Color

5 MTAB01 TAPE,PROTECTION MTAB0232201 COMPLEX, (empty), , , , , Without Color

5 MTAZ00 TAPE MTAZ0168901 COMPLEX, (empty), , , , , Without Color

5 MWAC00 WINDOW,LCD MWAC0093502 MOLD, Tempered Glass, , , , , Black

4 ADBY01 DECO ASSY ADBY0012301 Lower Deco Assy Black

5 MDAP00 DECO,SLIDE(UPPER) MDAP0002301 MOLD, POM TX-31, , , , , Black

5 MMAA00 MAGNET,SWITCH MMAA0009601 COMPLEX, (empty), 1, , , , Without Color 29

4 ARDY00 RAIL ASSY,SLIDE ARDY0004601 Without Color 41, 42

5 MPBT00 PAD,CAMERA MPBT0057601 COMPLEX, (empty), , , , , Without Color 45

5 MPBU00 PAD,CONNECTOR MPBU0026201 COMPLEX, (empty), 0.3T, , , , Black 31

5 MTAC00 TAPE,SHIELD MTAC0067301 COMPLEX, (empty), , , , , Without Color

4 GMEY00 SCREW MACHINE,BIND GMEY00170011.4 mm,2.3 mm,SWCH18A ,N ,SQR , ,; ,BH ,[empty],2.7mm ,2.3mm +0.0mm,-0.2mm ,SWRCH ,WHITE,[empty] ,[empty]

28

4 MBJC00 BUTTON,FUNCTION MBJC0024801 COMPLEX, (empty), , , , , Silver 3

4 MCCH00 CAP,SCREW MCCH0123101 COMPLEX, (empty), , , , , Black 27

4 MCCH01 CAP,SCREW MCCH0123001 COMPLEX, (empty), , , , , Black 26

4 MIDZ00 INSULATOR MIDZ0166101 COMPLEX, (empty), , , , , Without Color

4 MIDZ01 INSULATOR MIDZ0166701 COMPLEX, (empty), , , , , Without Color

4 MIDZ02 INSULATOR MIDZ0167801 COMPLEX, (empty), , , , , Without Color

4 MIDZ03 INSULATOR MIDZ0167901 COMPLEX, (empty), , , , , Without Color

4 MKAG00 KEYPAD,MAIN MKAG0006201 COMPLEX, (empty), , , , , Black 39

4 MLAZ00 LABEL MLAZ0038303 PRINTING, (empty), , , , , White

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12. EXPLODED VIEW & REPLACEMENT PART LIST

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LevelLocation

NoDesciption Part Number Spec Color Remark

4 MPBG00 PAD,LCD MPBG0072301 COMPLEX, (empty), , , , , Without Color 1

4 MPBJ00 PAD,MOTOR MPBJ0051501 COMPLEX, (empty), , , , , Without Color 12

4 MTAB00 TAPE,PROTECTION MTAB0228401 COMPLEX, (empty), , , , , Without Color

4 MTAB01 TAPE,PROTECTION MTAB0212201 COMPLEX, (empty), , , , , Without Color

4 MTAC00 TAPE,SHIELD MTAC0067601 COMPLEX, (empty), , , , , Without Color

4 MTAF00 TAPE,MOTOR MTAF0019601 COMPLEX, (empty), , , , , Without Color

4 MTAJ00 TAPE,FLEXIBLE PCB MTAJ0004801 COMPLEX, (empty), , , , , Without Color

4 MTAK00 TAPE,CAMERA MTAK0007401 CUTTING, BeCu, 0.05, , , , Without Color

6 ADCA00 DOME ASSY,METAL ADCA0076201 Without Color 40

6 ADCA00 DOME ASSY,METAL ADCA0076101 SUB Without Color 16

6 MIDZ00 INSULATOR MIDZ0175201 COMPLEX, (empty), , , , , Without Color

3 GMEY00 SCREW MACHINE,BIND GMEY0009201 1.4 mm,3.5 mm,MSWR3(BK) ,B ,+ ,HEAD D=2.7mm Black 23

3 MLAK00 LABEL,MODEL MLAK0018616 KG110 MADE IN KOREA Without Color

4 ACKA00 CAN ASSY,SHIELD ACKA0006801 Without Color

5 MCBA00 CAN,SHIELD MCBA0027701 PRESS, STS, , , , , Without Color 51

5 MIDZ00 INSULATOR MIDZ0168901 CUTTING, BeCu, , , , , Without Color 50

5 MIDZ01 INSULATOR MIDZ0169001 CUTTING, Bs, , , , , Color Unfixed 49

5 MCBA00 CAN,SHIELD MCBA0027801 PRESS, STS, , , , , Without Color 46

5 MLAZ00 LABEL MLAZ0038301 PID Label 4 Array Without Color

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12. EXPLODED VIEW & REPLACEMENT PART LIST

- 238 -

LevelLocation

NoDesciption Part Number Spec Color Remark

1 IMT-2000(SLIDE) TISL0003201 Black

4 SNGF00 ANTENNA,GSM,FIXED SNGF00335023.0 ,-2.0 dBd, ,EGSM+DCS+PCS+W-BAND I, INTERNAL,; ,QUAD ,-2.0 ,50 ,3.0

52

4 SNGF01 ANTENNA,GSM,FIXED SNGF00341013.0 ,-2.0 dBd, ,BLUETOOTH, INTERNAL ,; ,SINGLE ,-2.0,50 ,3.0

53

4 SACY00 PCB ASSY,FLEXIBLE SACY0073001

5 SACE00 PCB ASSY,FLEXIBLE,SMT SACE0067701

6 SACC00PCB ASSY,FLEXIBLE,SMTBOTTOM

SACC0044801

7 C1006 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

7 C101 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

7 C102 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

7 C103 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

7 CN104CONNECTOR,BOARD TOBOARD

ENBY0016601 20 PIN,0.4 mm,STRAIGHT ,AU ,0.9 STACKING HEIGHT

7 R102 RES,CHIP ERHY0011601 11 Kohm,1/16W ,F ,1005 ,R/TP

6 SACD00PCB ASSY,FLEXIBLE,SMTTOP

SACD0057301

7 CN106CONNECTOR,BOARD TOBOARD

ENBY0019801 80 PIN,0.4 mm,ETC , ,H=1.5, Header

7 CN108CONNECTOR,BOARD TOBOARD

ENBY0036101 44 PIN,0.4 mm,ETC , ,H=1.0, Plug

7 U101 IC EUSY0343701WSOF6 ,6 PIN,R/TP ,Luminance sensor ,; ,IC,A/DConverter

6 SPCY00 PCB,FLEXIBLE SPCY0110201 POLYI ,0.2 mm,DOUBLE , ,; , , , , , , , , ,

4 SACY01 PCB ASSY,FLEXIBLE SACY0073101

5 SACE00 PCB ASSY,FLEXIBLE,SMT SACE0067801

6 SACC00PCB ASSY,FLEXIBLE,SMTBOTTOM

SACC0044901

7 C113 CAP,CERAMIC,CHIP ECCH0000196 0.75 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP

7 C114 CAP,CHIP,MAKER ECZH0001002 0.5 pF,50V ,B ,NP0 ,TC ,1005 ,R/TP

7 L1 INDUCTOR,CHIP ELCH0003828 2.4 nH,J ,1005 ,R/TP ,MLCI

7 SW101 CONN,RF SWITCH ENWY0005501,SMD , dB, ,; ,0.30MM ,STRAIGHT ,SOCKET ,SMD,[empty] ,[empty] , ,

6 SACD00PCB ASSY,FLEXIBLE,SMTTOP

SACD0057401

7 C104 CAP,TANTAL,CHIP ECTH0002201 10 uF,6.3V ,M ,STD ,1608 ,R/TP

7 C105 CAP,CERAMIC,CHIP ECCH0000122 47 pF,50V,J,NP0,TC,1005,R/TP

7 C106 CAP,CERAMIC,CHIP ECCH0000163 47 nF,10V,K,X5R,HD,1005,R/TP

12.2 Replacement Parts<Main component>

Note: This Chapter is used for reference, Part orderis ordered by SBOM standard on GCSC

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12. EXPLODED VIEW & REPLACEMENT PART LIST

- 239 -

LevelLocation

NoDesciption Part Number Spec Color Remark

7 C108 CAP,CERAMIC,CHIP ECCH0000163 47 nF,10V,K,X5R,HD,1005,R/TP

7 C109 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

7 C112 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

7 CN1CONNECTOR,BOARD TOBOARD

ENBY004360120 PIN,0.4 mm,STRAIGHT , , ,; , ,0.40MM ,STRAIGHT,MALE ,SMD ,[empty] , ,

7 LD101 DIODE,LED,CHIP EDLH0013401WHITE ,ETC ,R/TP ,SIDEVIEW LED ,; ,[empty] , , , , ,,[empty] ,[empty] ,2P

7 LD102 DIODE,LED,CHIP EDLH0013401WHITE ,ETC ,R/TP ,SIDEVIEW LED ,; ,[empty] , , , , ,,[empty] ,[empty] ,2P

7 MIC101 MICROPHONE SUMY0010603PIN ,42 dB,4.72*3.76*1.25 ,MEMS MIC , , , ,OMNI,1.5TO5V , ,SMD

7 R101 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP

7 R102 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP

7 R103 FILTER,BEAD,CHIP SFBH0008102 1800 ohm,1005 ,Bead

7 R104 FILTER,BEAD,CHIP SFBH0008102 1800 ohm,1005 ,Bead

7 RA101 RES,ARRAY,R ERNR0000403 10000 ohm, ohm,8 PIN,J ,1/32 W ,SMD ,R/TP

7 SW1101 SWITCH,TACT ESCY00053011 V,1 A,HORIZONTAL ,1 G, ,; ,10C2P ,[empty] ,[empty],[empty] , ,[empty]

7 U101 IC EUSY0268101 SON2017-6 ,6 PIN,R/TP ,HALL SWITCH, Pb Free

7 VA101 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA102 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA103 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA104 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA105 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA106 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA107 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA108 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 ZD101 DIODE,TVS EDTY0009401VMN2 ,5 V,10 W,R/TP ,1.0*0.6*0.4 ,; , ,7.82V , , ,100mW,[empty] ,[empty] ,2P ,1

7 ZD102 DIODE,TVS EDTY0009401VMN2 ,5 V,10 W,R/TP ,1.0*0.6*0.4 ,; , ,7.82V , , ,100mW,[empty] ,[empty] ,2P ,1

6 SPCY00 PCB,FLEXIBLE SPCY0110101 POLYI ,0.2 mm,DOUBLE , ,; , , , , , , , , ,

5 SAFB00 PCB ASSY,MAIN,INSERT SAFB0085701

4 SAJY00 PCB ASSY,SUB SAJY0032201 Multi key PCB Color Unfixed 18

5 SAJB00 PCB ASSY,SUB,INSERT SAJB0016001

5 SAJE00 PCB ASSY,SUB,SMT SAJE0025701 Multi Key Color Unfixed

6 SAJC00PCB ASSY,SUB,SMTBOTTOM

SAJC0024701

7 C900 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

7 C901 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

7 C902 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

- 240 -

LevelLocation

NoDesciption Part Number Spec Color Remark

7 C903 CAP,CERAMIC,CHIP ECCH0011201470 pF,250V ,K ,X7R ,HD ,1608 ,R/TP ,; , ,[empty],[empty] ,[empty] ,[empty] ,[empty] ,[empty]

7 C904 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

7 C905 CAP,CERAMIC,CHIP ECCH0009515 150 pF,25V ,K ,X7R ,HD ,0603 ,R/TP

7 C906 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

7 C907 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

7 CN900 CONNECTOR,FFC/FPC ENQY001430137 PIN,0.3 mm,STRAIGHT , , ,; , ,0.30MM ,FFC/FPC,STRAIGHT ,BOTH ,SMD ,[empty] ,[empty] ,

7 CN901CONNECTOR,BOARD TOBOARD

ENBY004580114 PIN, mm,STRAIGHT , , ,; , ,0.40MM ,STRAIGHT,FEMALE ,SMD ,[empty] , ,

7 CN902CONNECTOR,BOARD TOBOARD

ENBY0036201 44 PIN,0.4 mm,ETC , ,H=1.0, Socket

7 D900 DIODE,SWITCHING EDSY0011901EMD2 ,30 V,1 A,R/TP ,VF=1.5V(IF=200mA) ,IR=30uA(VR=10V)

7 D901 DIODE,SWITCHING EDSY0017901TUMD2 ,200 V,0.5 A,R/TP , ,; , , , , , , ,[empty] ,[empty],[empty] ,[empty]

7 FL900 FILTER,EMI/POWER SFEY0011601 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (50 Ohm,15pF)

7 FL901 FILTER,EMI/POWER SFEY0011601 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (50 Ohm,15pF)

7 FL902 FILTER,EMI/POWER SFEY0011601 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (50 Ohm,15pF)

7 L900 INDUCTOR,CHIP ELCH0002610 100 uH,M ,ETC ,R/TP ,power inductor 2.9x2.9

7 Q900 TR,FET,N-CHANNEL EQFN0008301SC70-6L ,15 W,240 V,1.52 A,R/TP ,Nch MOSFET ,; ,N-CHANNEL ,MOSFET ,240 ,+-20 ,; ,2.46 ,15 ,SC706L,R/TP ,6P

7 R900 RES,CHIP ERHY0009505 10 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

7 R901 RES,CHIP ERHY0009505 10 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

7 R902 RES,CHIP ERHY0009527 47 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

7 R904 RES,CHIP,MAKER ERHZ0000493 51 Kohm,1/16W ,J ,1005 ,R/TP

7 R906 RES,CHIP,MAKER ERHZ0000485 4700 ohm,1/16W ,J ,1005 ,R/TP

7 R907 RES,CHIP,MAKER ERHZ0000485 4700 ohm,1/16W ,J ,1005 ,R/TP

7 R908 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

7 R909PCB ASSY,MAIN,PADSHORT

SAFP0000501

7 R910 RES,CHIP ERHY001820110000000 ohm,1/10W ,F ,1608 ,R/TP ,; ,10000000 ,1%,1/10W ,1608 ,R/TP

7 R911PCB ASSY,MAIN,PADSHORT

SAFP0000401

7 R912 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

7 R913 RES,CHIP ERHY0009558 68 Kohm,1/20W(0.05W) ,F ,0603 ,R/TP

7 R915 RES,CHIP ERHY001910156000 ohm,1/10W ,J ,1608 ,R/TP ,; ,56000 ,5% ,1/10W,1608 ,R/TP

7 U900 IC EUSY0309902 QFN ,32 ,R/TP ,S/W ic for EL, 5x5x1T ,; ,IC,BiCMOS

7 U901 IC EUSY0277001Cap sense Inputs device ,32 PIN,R/TP ,5*5 CapsenseTrackPad

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LevelLocation

NoDesciption Part Number Spec Color Remark

7 VA900 VARISTOR SEVY0004201 14 V, ,SMD ,120pF, 1005

7 VA901 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA902 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA903 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA904 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA905 VARISTOR SEVY0004101 5.6 V, ,SMD ,360pF, 1005

7 VA906 VARISTOR SEVY0004101 5.6 V, ,SMD ,360pF, 1005

6 SPJY00 PCB,SUB SPJY0046501FR-4 ,0.5 mm,BUILD-UP 6 ,KF750 MULTIKEY PCB ,; , , ,, , , , , ,

4 SJMY00 VIBRATOR,MOTOR SJMY0006508 3 V,.08 A,10*3.45 ,17mm , ,3V , , ,12500 , , , ,38 11

4 SUSY00 SPEAKER SUSY0027201 PIN ,8 ohm,90 dB, mm, ,; , , , , , ,18*12*3.4T ,PIN 13

4 SVCY01 CAMERA SVCY0015301CMOS ,VGA ,MAGNACHIP(1/7.4"), 5.5x5.1x3.2t, FPCB90

5

4 SVLM00 LCD MODULE SVLM0027801MAIN ,240*320 ,42.2*60*1.5t ,262k ,TFT ,TM,uPD161707 ,

4 SWCC00 CABLE,COAXIAL SWCC000530162 mm, LINE, ,; ,[empty] ,[empty] ,[empty] , ,[empty] ,,[empty]

3 SAFY00 PCB ASSY,MAIN SAFY0255701 48

4 SACY00 PCB ASSY,FLEXIBLE SACY0073201

5 SACE00 PCB ASSY,FLEXIBLE,SMT SACE0067901

6 SACC00PCB ASSY,FLEXIBLE,SMTBOTTOM

SACC0045001

7 C901 CAP,CERAMIC,CHIP ECCH0000182 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP

7 C903 CAP,CERAMIC,CHIP ECCH0000182 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP

7 C904 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

7 C905 CAP,CERAMIC,CHIP ECCH0000179 22 nF,16V ,K ,X5R ,HD ,1005 ,R/TP

7 C906 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

7 C907 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

7 C908 CAP,CHIP,MAKER ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP

7 C909 CAP,CHIP,MAKER ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP

7 C911 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

7 C912 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP

7 C913 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP

7 C915 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP

7 C916 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP

7 C917 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

7 C918 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

7 C919 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

7 C920 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

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LevelLocation

NoDesciption Part Number Spec Color Remark

7 C921 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

7 C922 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

7 C923 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP

7 C924 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP

7 C925 CAP,CERAMIC,CHIP ECCH0000163 47 nF,10V,K,X5R,HD,1005,R/TP

7 D900 DIODE,TVS EDTY0008607 SC70-6L ,6 V,200 W,R/TP ,PB-FREE

7 J900 CONN,SOCKET ENSY0021401 8 PIN,ETC , , mm,

7 J901 CONN,SOCKET ENSY0018101 6 PIN,ETC , ,2.54 mm,H=1.5

7 L900 RES,CHIP,MAKER ERHZ0000401 0 ohm,1/16W ,J ,1005 ,R/TP

7 L901 INDUCTOR,CHIP ELCH0003811 1000 nH,K ,1608 ,R/TP ,COIL TYPE

7 LD900 DIODE,LED,ARRAY EDLA0000902 ORANGE ,1 COLOR,3.2X2.4X2.4mm ,R/TP ,

7 LD901 DIODE,LED,MODULE EDLM0009401 WHITE ,1 LED,3.5X2.8X0.6T ,R/TP ,

7 Q900 TR,BJT,ARRAY EQBA0000601 UMT5 ,.2 W,R/TP ,

7 Q901 TR,BJT,NPN EQBN0012401 ESM ,100 mW,R/TP ,NPN TRANSISTOR

7 R900 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP

7 R907 RES,CHIP,MAKER ERHZ0000487 470 Kohm,1/16W ,J ,1005 ,R/TP

7 R911 RES,CHIP,MAKER ERHZ0000401 0 ohm,1/16W ,J ,1005 ,R/TP

7 R912 RES,CHIP,MAKER ERHZ0000474 390 ohm,1/16W ,J ,1005 ,R/TP

7 R913 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP

7 R916 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP

7 R919 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP

7 R920 RES,CHIP,MAKER ERHZ0000530 5.1 Kohm,1/16W ,J ,1005 ,R/TP

7 R923 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP

7 R924 RES,CHIP,MAKER ERHZ0000493 51 Kohm,1/16W ,J ,1005 ,R/TP

7 R925 RES,CHIP,MAKER ERHZ0000493 51 Kohm,1/16W ,J ,1005 ,R/TP

7 R926 RES,CHIP,MAKER ERHZ0000331 110 Kohm,1/16W ,F ,1005 ,R/TP

7 R927 RES,CHIP,MAKER ERHZ0000518 910 ohm,1/16W ,J ,1005 ,R/TP

7 R928 RES,CHIP,MAKER ERHZ0000401 0 ohm,1/16W ,J ,1005 ,R/TP

7 R929 RES,CHIP,MAKER ERHZ0000401 0 ohm,1/16W ,J ,1005 ,R/TP

7 R930 RES,CHIP,MAKER ERHZ0000401 0 ohm,1/16W ,J ,1005 ,R/TP

7 R931 RES,CHIP,MAKER ERHZ0000401 0 ohm,1/16W ,J ,1005 ,R/TP

7 R932 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP

7 R933 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP

7 R934 DIODE,SWITCHING EDSY0018101VMN2 ,30 V,100 mA,R/TP ,1.0x0.6 ,; , , , , , , ,[empty],[empty] ,2P ,1

7 R935 DIODE,SWITCHING EDSY0018101VMN2 ,30 V,100 mA,R/TP ,1.0x0.6 ,; , , , , , , ,[empty],[empty] ,2P ,1

7 R936 RES,CHIP,MAKER ERHZ0000401 0 ohm,1/16W ,J ,1005 ,R/TP

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LevelLocation

NoDesciption Part Number Spec Color Remark

7 R937 RES,CHIP,MAKER ERHZ0000439 200 Kohm,1/16W ,J ,1005 ,R/TP

7 R938 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP

7 R940 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

7 R943 RES,CHIP,MAKER ERHZ0000401 0 ohm,1/16W ,J ,1005 ,R/TP

7 RA1 RES,ARRAY,R ERNR0000404 100 Kohm,100 Kohm,8 PIN,J ,1/16W ,SMD ,R/TP

7 RA2 RES,ARRAY,R ERNR0000404 100 Kohm,100 Kohm,8 PIN,J ,1/16W ,SMD ,R/TP

7 U900 IC EUSY0334202BGA ,20 PIN,R/TP ,Levelshifter,sdcard,6ch ,; ,IC,BusController

7 U901 IC EUSY03452013*3 QFN ,10 PIN,R/TP ,3xis Accelerometer ,; ,IC,A/DConverter

7 U902 IC EUSY0349001BGA ,8 PIN,R/TP ,Class AB SPK AMP ,; ,IC,AudioAmplifier

7 U903 IC EUSY0230104CSP ,36 PIN,R/TP ,SUB PMIC,ALC,2LDO_150mA,1.33X,; ,IC,Sub PMIC

7 U904 IC EUSY0264502DFN ,14 PIN,R/TP ,700mA Boost converter ,; ,IC,DC,DCConverter

7 VA900 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA901 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

7 VA905 VARISTOR SEVY0003801 18 V, ,SMD ,

7 VA907 VARISTOR SEVY0003801 18 V, ,SMD ,

7 VA908 VARISTOR SEVY0003801 18 V, ,SMD ,

7 VA909 VARISTOR SEVY0003801 18 V, ,SMD ,

7 VA910 VARISTOR SEVY0003801 18 V, ,SMD ,

7 VA911 VARISTOR SEVY0003801 18 V, ,SMD ,

7 ZD1 DIODE,TVS EDTY0009401VMN2 ,5 V,10 W,R/TP ,1.0*0.6*0.4 ,; , ,7.82V , , ,100mW,[empty] ,[empty] ,2P ,1

7 ZD2 DIODE,TVS EDTY0009401VMN2 ,5 V,10 W,R/TP ,1.0*0.6*0.4 ,; , ,7.82V , , ,100mW,[empty] ,[empty] ,2P ,1

6 SPCY00 PCB,FLEXIBLE SPCY0109601 POLYI ,0.25 mm,3-1-3 RF , ,; , , , , , , , , ,

4 SAFF00 PCB ASSY,MAIN,SMT SAFF0172201

5 SAFC00PCB ASSY,MAIN,SMTBOTTOM

SAFC0107001

6 BAT600 BATTERY,CELL,LITHIUM SBCL00017012 V,0.5 mAh,CYLINDER ,Reflow type BB, Max T 1.67, phi4.8, Pb-Free

6 C107 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C117 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

6 C118 CAP,CERAMIC,CHIP ECCH0007802 4.7 uF,10V ,M ,X5R ,TC ,1608 ,R/TP

6 C300 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C301 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C302 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C303 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

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LevelLocation

NoDesciption Part Number Spec Color Remark

6 C304 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C305 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C306 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C307 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C308 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C309 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C310 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C311 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C312 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C313 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C314 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C315 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C316 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C317 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C318 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C319 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C320 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C321 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C322 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C323 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C324 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C325 CAP,CERAMIC,CHIP ECCH0009203 33 nF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C326 CAP,CERAMIC,CHIP ECCH0009203 33 nF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C327 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP

6 C328 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C329 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C330 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C331 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C332 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C333 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C334 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C335 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C421 CAP,CERAMIC,CHIP ECCH0007802 4.7 uF,10V ,M ,X5R ,TC ,1608 ,R/TP

6 C422 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP

6 C500 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP

6 C501 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C502 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

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LevelLocation

NoDesciption Part Number Spec Color Remark

6 C503 CAP,CERAMIC,CHIP ECCH0005603 2.2 uF,10V ,K ,X5R ,TC ,1608 ,R/TP

6 C504 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP

6 C505 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C506 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C507 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C508 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C509 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C510 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C511 CAP,CERAMIC,CHIP ECCH0000161 33 nF,16V,K,X7R,HD,1005,R/TP

6 C512 CAP,CHIP,MAKER ECZH0000901 24 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP

6 C513 CAP,CHIP,MAKER ECZH0000901 24 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP

6 C514 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP

6 C515 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C516 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP

6 C517 CAP,TANTAL,CHIP ECTH000200233 uF,10V ,M ,L_ESR ,2012 ,R/TP ,; , ,[empty] ,[empty] ,,-55TO+125C , ,2.2X1.1X1.1MM ,[empty] ,[empty],[empty]

6 C518 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C519 CAP,CERAMIC,CHIP ECCH0000122 47 pF,50V,J,NP0,TC,1005,R/TP

6 C520 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C522 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C523 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C524 CAP,CERAMIC,CHIP ECCH0000163 47 nF,10V,K,X5R,HD,1005,R/TP

6 C525 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP

6 C526 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C527 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C528 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C529 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C530 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C531 CAP,CERAMIC,CHIP ECCH0000163 47 nF,10V,K,X5R,HD,1005,R/TP

6 C532 CAP,CERAMIC,CHIP ECCH0000163 47 nF,10V,K,X5R,HD,1005,R/TP

6 C534 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C535 CAP,CERAMIC,CHIP ECCH0009106 10 nF,16V ,K ,X7R ,TC ,0603 ,R/TP

6 C536 CAP,CHIP,MAKER ECZH0001216 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP

6 C537 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C600 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C601 CAP,CERAMIC,CHIP ECCH0007802 4.7 uF,10V ,M ,X5R ,TC ,1608 ,R/TP

6 C602 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

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LevelLocation

NoDesciption Part Number Spec Color Remark

6 C603 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C604 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C605 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C606 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP

6 C607 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP

6 C608 CAP,CERAMIC,CHIP ECCH0009106 10 nF,16V ,K ,X7R ,TC ,0603 ,R/TP

6 C609 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C610 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C611 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

6 C613 CAP,TANTAL,CHIP ECTH0005202100 uF,4V ,M ,L_ESR ,2012 ,R/TP ,; , ,[empty] ,[empty] ,,[empty] , ,[empty] ,[empty] ,[empty] ,[empty]

6 C614 CAP,TANTAL,CHIP ECTH0005202100 uF,4V ,M ,L_ESR ,2012 ,R/TP ,; , ,[empty] ,[empty] ,,[empty] , ,[empty] ,[empty] ,[empty] ,[empty]

6 C616 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

6 C619 CAP,CERAMIC,CHIP ECCH0005603 2.2 uF,10V ,K ,X5R ,TC ,1608 ,R/TP

6 C620 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C621 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C622 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C700 CAP,TANTAL,CHIP ECTH0001901 10 uF,6.3V ,M ,L_ESR ,1608 ,R/TP

6 C701 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C702 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C703 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C704 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C707 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C708 CAP,CERAMIC,CHIP ECCH0009514 10 pF,25V ,D ,X7R ,HD ,0603 ,R/TP

6 C709 CAP,CERAMIC,CHIP ECCH0009514 10 pF,25V ,D ,X7R ,HD ,0603 ,R/TP

6 C710 CAP,CERAMIC,CHIP ECCH0009514 10 pF,25V ,D ,X7R ,HD ,0603 ,R/TP

6 C711 CAP,CERAMIC,CHIP ECCH0009514 10 pF,25V ,D ,X7R ,HD ,0603 ,R/TP

6 C716 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C717 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C718 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C719 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C722 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C724 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C802 INDUCTOR,CHIP ELCH0001040 3.9 nH,S ,1005 ,R/TP ,PBFREE

6 C803 INDUCTOR,CHIP ELCH0004703 1 nH,S ,1005 ,R/TP ,

6 C804 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C808 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

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LevelLocation

NoDesciption Part Number Spec Color Remark

6 C809 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C810 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C811 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C812 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C813 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C814 CAP,CERAMIC,CHIP ECCH0009110 22 nF,6.3V ,K ,X7R ,TC ,0603 ,R/TP

6 C815 CAP,CERAMIC,CHIP ECCH0009110 22 nF,6.3V ,K ,X7R ,TC ,0603 ,R/TP

6 C816 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP

6 C817 CAP,CERAMIC,CHIP ECCH0000129 120 pF,50V,J,NP0,TC,1005,R/TP

6 C818 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C819 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP

6 CN500 CONNECTOR,ETC ENZY0016301 3 PIN,3.0 mm,ETC , ,H-2.0

6 CN600 CONNECTOR,I/O ENRY0006501 18 PIN,0.4 mm,ETC , ,1.2 Offset

6 CN700CONNECTOR,BOARD TOBOARD

ENBY004370120 PIN,0.4 mm,STRAIGHT , , ,; , ,0.40MM ,STRAIGHT,FEMALE ,SMD ,[empty] , ,

6 CN701CONNECTOR,BOARD TOBOARD

ENBY0040301 34 PIN,0.4 mm,ETC , ,H=1.0, Socket

6 D500 DIODE,SWITCHING EDSY0011901EMD2 ,30 V,1 A,R/TP ,VF=1.5V(IF=200mA) ,IR=30uA(VR=10V)

6 D501 DIODE,SWITCHING EDSY0014001 SMT ,20 V,200 A,R/TP ,

6 D502 DIODE,SWITCHING EDSY0011901EMD2 ,30 V,1 A,R/TP ,VF=1.5V(IF=200mA) ,IR=30uA(VR=10V)

6 D600 DIODE,SWITCHING EDSY0017601USF ,30 V,1 A,R/TP , ,; , , ,22A , , ,667mW ,[empty],[empty] ,[empty] ,1

6 FB500 FILTER,BEAD,CHIP SFBH0001501 120 ohm,1608 ,

6 FB600 FILTER,BEAD,CHIP SFBH00081031000 ohm,1005 ,chip bead, 200mA,DCR0.9ohm ,; , ,,SMD ,R/TP

6 FB601 FILTER,BEAD,CHIP SFBH00081031000 ohm,1005 ,chip bead, 200mA,DCR0.9ohm ,; , ,,SMD ,R/TP

6 FB603 FILTER,BEAD,CHIP SFBH0008102 1800 ohm,1005 ,Bead

6 FB604 FILTER,BEAD,CHIP SFBH0008102 1800 ohm,1005 ,Bead

6 FB605 FILTER,BEAD,CHIP SFBH0008102 1800 ohm,1005 ,Bead

6 FB700 FILTER,BEAD,CHIP SFBH0000909 60 ohm,1005 ,

6 FB800 FILTER,BEAD,CHIP SFBH0000909 60 ohm,1005 ,

6 FL601 FILTER,EMI/POWER SFEY0014001 SMD ,2ch Audio EMI/ESD Filter (8.4ohm, 60pF)

6 FL700 FILTER,EMI/POWER SFEY0011701 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (10 Ohm,7.5pF)

6 FL701 FILTER,EMI/POWER SFEY0011701 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (10 Ohm,7.5pF)

6 FL702 FILTER,EMI/POWER SFEY0011701 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (10 Ohm,7.5pF)

6 FL800 FILTER,SAW SFSY0027301 2450 MHz,2.0*1.5*1.0 ,SMD ,Pb-free_B/T_SAW

6 L400 INDUCTOR,SMD,POWER ELCP0006703 10 uH,M ,3.2*2.6*1.0 ,R/TP ,

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12. EXPLODED VIEW & REPLACEMENT PART LIST

- 248 -

LevelLocation

NoDesciption Part Number Spec Color Remark

6 L500 INDUCTOR,SMD,POWER ELCP0009401 4.7 uH,M ,2.8*2.6*1.0 ,R/TP ,

6 L600 INDUCTOR,CHIP ELCH0001556 270 nH,J ,1608 ,R/TP ,

6 L800 INDUCTOR,CHIP ELCH0001034 3.3 nH,S ,1005 ,R/TP ,PBFREE

6 L801 CAP,CERAMIC,CHIP ECCH0000701 1.2 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP

6 L802 INDUCTOR,CHIP ELCH0004703 1 nH,S ,1005 ,R/TP ,

6 Q300 TR,BJT,NPN EQBN0013301 2-2H1A ,.1 W,R/TP ,VEBO=6V, Pb free

6 Q400 TR,FET,P-CHANNEL EQFP0009301MLF-4 ,0 W,0 V,1.2 A,R/TP ,Load Switch ,; ,P-CHANNEL,MOSFET ,; ,; ,; ,; ,; ,MELF ,R/TP ,4P

6 Q500 TR,BJT,NPN EQBN0014301USM ,600 mW,R/TP ,EPITAXIAL PLANAR NPNTRANSISTOR

6 Q501 TR,FET,P-CHANNEL EQFP0009101SC70-6 ,6.5 W,-20 V,-4.5 A,R/TP ,P channel FET ,; ,P-CHANNEL ,MOSFET ,-20 ,8 ,-4.5 ,0.153 ,6.5 ,SC70,R/TP ,6P

6 R100PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R102 RES,CHIP,MAKER ERHZ0000463 33 ohm,1/16W ,J ,1005 ,R/TP

6 R105 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R300PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R301PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R302PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R304PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R305 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R306 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R307 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R308 RES,CHIP ERHY0009505 10 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R309 RES,CHIP,MAKER ERHZ0000443 2200 ohm,1/16W ,J ,1005 ,R/TP

6 R310PCB ASSY,MAIN,PADOPEN

SAFO0000401 0OHM DNI

6 R311PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R312 RES,CHIP,MAKER ERHZ0000465 3300 ohm,1/16W ,J ,1005 ,R/TP

6 R313 RES,CHIP,MAKER ERHZ0000465 3300 ohm,1/16W ,J ,1005 ,R/TP

6 R314 RES,CHIP,MAKER ERHZ0000465 3300 ohm,1/16W ,J ,1005 ,R/TP

6 R315 RES,CHIP,MAKER ERHZ0000465 3300 ohm,1/16W ,J ,1005 ,R/TP

6 R404 RES,CHIP,MAKER ERHZ0000237 20 Kohm,1/16W ,F ,1005 ,R/TP

6 R406 RES,CHIP,MAKER ERHZ0000294 5100 ohm,1/16W ,F ,1005 ,R/TP

6 R500 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R501 RES,CHIP ERHY0009503 100 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

- 249 -

LevelLocation

NoDesciption Part Number Spec Color Remark

6 R504PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R505 RES,CHIP,MAKER ERHZ0000443 2200 ohm,1/16W ,J ,1005 ,R/TP

6 R506 RES,CHIP,MAKER ERHZ0000265 300 Kohm,1/16W ,F ,1005 ,R/TP

6 R507PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R508PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R509 RES,CHIP ERHY0017201 0.025 ohm,1/4W ,F ,2012 ,R/TP

6 R511PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R512PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R513 RES,CHIP,MAKER ERHZ00039010.1 ohm,1/4W ,F ,2012 ,R/TP ,; ,0.1 ,1% ,1/4W ,2012,R/TP

6 R514 RES,CHIP,MAKER ERHZ0000486 47 Kohm,1/16W ,J ,1005 ,R/TP

6 R515 RES,CHIP,MAKER ERHZ0000486 47 Kohm,1/16W ,J ,1005 ,R/TP

6 R516 RES,CHIP ERHY0000181 15 ohm,1/16W ,F ,1005 ,R/TP

6 R517 RES,CHIP,MAKER ERHZ0000279 39 Kohm,1/16W ,F ,1005 ,R/TP

6 R518 RES,CHIP ERHY0000181 15 ohm,1/16W ,F ,1005 ,R/TP

6 R519 RES,CHIP ERHY0000181 15 ohm,1/16W ,F ,1005 ,R/TP

6 R520 RES,CHIP ERHY0009505 10 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R521 RES,CHIP ERHY0009505 10 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R522 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R523 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R524 RES,CHIP,MAKER ERHZ0000279 39 Kohm,1/16W ,F ,1005 ,R/TP

6 R525 RES,CHIP ERHY0009527 47 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R600PCB ASSY,MAIN,PADOPEN

SAFO0000401 0OHM DNI

6 R601PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R602PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R603 RES,CHIP,MAKER ERHZ0000493 51 Kohm,1/16W ,J ,1005 ,R/TP

6 R604PCB ASSY,MAIN,PADOPEN

SAFO0000401 0OHM DNI

6 R605 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP

6 R606 RES,CHIP,MAKER ERHZ0000212 12 Kohm,1/16W ,F ,1005 ,R/TP

6 R607 RES,CHIP,MAKER ERHZ0000486 47 Kohm,1/16W ,J ,1005 ,R/TP

6 R610 RES,CHIP ERHY0009541 470 ohm,1/20W(0.05W) ,F ,0603 ,R/TP

6 R612 RES,CHIP ERHY0009541 470 ohm,1/20W(0.05W) ,F ,0603 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

- 250 -

LevelLocation

NoDesciption Part Number Spec Color Remark

6 R613PCB ASSY,MAIN,PADOPEN

SAFO0000401 0OHM DNI

6 R614PCB ASSY,MAIN,PADOPEN

SAFO0000401 0OHM DNI

6 R615 RES,CHIP ERHY0009522 3.3 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R616PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R617 RES,CHIP,MAKER ERHZ0000499 5600 ohm,1/16W ,J ,1005 ,R/TP

6 R618 RES,CHIP ERHY0009504 1 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R619PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R620 RES,CHIP,MAKER ERHZ0000445 220 Kohm,1/16W ,J ,1005 ,R/TP

6 R621PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R622PCB ASSY,MAIN,PADOPEN

SAFO0000501 0OHM_1005_DNI

6 R623PCB ASSY,MAIN,PADOPEN

SAFO0000501 0OHM_1005_DNI

6 R624PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R702 RES,CHIP,MAKER ERHZ0000463 33 ohm,1/16W ,J ,1005 ,R/TP

6 R703 RES,CHIP,MAKER ERHZ0000206 10 ohm,1/16W ,F ,1005 ,R/TP

6 R704 RES,CHIP ERHY0009502 10 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R705 RES,CHIP ERHY0009502 10 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R706 RES,CHIP ERHY0009502 10 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R707 RES,CHIP ERHY0009502 10 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R710PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R713PCB ASSY,MAIN,PADOPEN

SAFO0000401 0OHM DNI

6 R714PCB ASSY,MAIN,PADOPEN

SAFO0000401 0OHM DNI

6 R803PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R807PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R808 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP

6 R813 RES,CHIP,MAKER ERHZ0000402 10 ohm,1/16W ,J ,1005 ,R/TP

6 R814 RES,CHIP,MAKER ERHZ0000402 10 ohm,1/16W ,J ,1005 ,R/TP

6 R816 RES,CHIP ERHY0009531 62 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R817 RES,CHIP ERHY0009531 62 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R818 RES,CHIP ERHY0009516 2.2 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 SW100 CONN,RF SWITCH ENWY0005301,SMD , dB,H=1.85 ,; ,3.00MM ,STRAIGHT ,RF ADAPTER,SMD ,R/TP ,AU , ,

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- 251 -

LevelLocation

NoDesciption Part Number Spec Color Remark

6 SW101 CONN,RF SWITCH ENWY0005601,SMD , dB, ,; ,0.30MM ,STRAIGHT ,SOCKET ,SMD,[empty] ,[empty] , ,

6 U101 IC EUSY0245902 DRL ,5 PIN,R/TP ,SINGLE,BUFFER,3STATE,1.7X1.7

6 U300 IC EUSY0316504FBGA ,107 PIN,ETC ,FULLY 1.8V 2G(LB/256Mx8)NAND+1G(2CS/16Mx4x16) SDRAM ,; ,IC,MCP

6 U301 IC EUSY0327501 BGA ,344 PIN,R/TP ,3.6Mbps HSDPA Digital Baseband

6 U400 IC EUSY0154415

6 U500 IC EUSY0349001BGA ,8 PIN,R/TP ,Class AB SPK AMP ,; ,IC,AudioAmplifier

6 U501 IC EUSY0340301uMLP ,10 PIN,R/TP ,typ Rdson 0.4ohm, 1.4X1.8 ,;,IC,Analog Switch

6 U502 IC EUSY0297502BGA ,143 PIN,R/TP ,HSDPA Analog baseband ,;,IC,Digital Baseband Processor

6 U600 IC EUSY0269001CSP ,20 PIN,R/TP ,ESD protection & Filtering for analogsignals, Pb-free

6 U601 IC EUSY0320201 TFBGA ,36 PIN,R/TP ,USB2.0 Transceiver, 3.5X3.5X0.8

6 U602 IC EUSY0338301uMLP ,10 PIN,R/TP ,High Speed USB Siwitch 2.0 3.7pF6.5ohm 1.4X1.8

6 U700 IC EUSY0294801 SON1612-6 ,6 PIN,R/TP ,3.1V 150mA LDO Pb-Free

6 U701 IC EUSY0294901 SON1612-6 ,6 PIN,R/TP ,2.6V 150mA LDO Pb-Free

6 U702 IC EUSY0232812 SON1612-6 ,6 PIN,R/TP ,2.8V, 150mA LDO

6 U801 IC EUSY0358701WFBGA ,100 PIN,R/TP ,Bluetooth+FM 5*7.5*0.8 ,;,IC,Bluetooth

6 U803 IC EUSY0294701 SON1612-6 ,6 PIN,R/TP ,1.8V 150mA LDO Pb-Free

6 VA600 VARISTOR SEVY0007301 5 V,<0.5pF ,SMD ,

6 VA601 VARISTOR SEVY0007301 5 V,<0.5pF ,SMD ,

6 VA602 VARISTOR SEVY0007301 5 V,<0.5pF ,SMD ,

6 VA603 VARISTOR SEVY0007301 5 V,<0.5pF ,SMD ,

6 VA700 VARISTOR SEVY0004301 18 V, ,SMD ,10pF, 1005

6 VA701 VARISTOR SEVY0004301 18 V, ,SMD ,10pF, 1005

6 VA702 VARISTOR SEVY0004301 18 V, ,SMD ,10pF, 1005

6 VA703 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

6 VA704 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

6 VA705 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005

6 X500 X-TAL EXXY002430132.768 KHz,20 PPM,12.5 pF,70 Kohm,SMD ,3.2*1.5*0.9,-40'C ~ +85'C, C0 1.05pF, C1 fF ,; ,32.768 ,20PPM ,12.5, , ,SMD ,R/TP

6 ZD600 DIODE,TVS EDTY0009401VMN2 ,5 V,10 W,R/TP ,1.0*0.6*0.4 ,; , ,7.82V , , ,100mW,[empty] ,[empty] ,2P ,1

5 SAFD00 PCB ASSY,MAIN,SMT TOP SAFD0105601

6 C100 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C101 CAP,CERAMIC,CHIP ECCH0009106 10 nF,16V ,K ,X7R ,TC ,0603 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LevelLocation

NoDesciption Part Number Spec Color Remark

6 C102 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP

6 C103 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP

6 C104 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C105 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C106 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C112 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

6 C113 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

6 C114 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

6 C115 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

6 C119 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

6 C120 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

6 C121 CAP,CHIP,MAKER ECZH0000816 12 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP

6 C122 CAP,CERAMIC,CHIP ECCH0000185 5.6 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP

6 C123 CAP,CERAMIC,CHIP ECCH0000185 5.6 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP

6 C124 CAP,CHIP,MAKER ECZH0000816 12 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP

6 C125 CAP,CERAMIC,CHIP ECCH0000185 5.6 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP

6 C126 CAP,CERAMIC,CHIP ECCH0000185 5.6 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP

6 C130 CAP,CERAMIC,CHIP ECCH0000180 3.3 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP

6 C131 CAP,CERAMIC,CHIP ECCH0000175 2.7 pF,50V ,B ,NP0 ,TC ,1005 ,R/TP

6 C133 CAP,CERAMIC,CHIP ECCH0000117 27 pF,50V,J,NP0,TC,1005,R/TP

6 C134 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP

6 C135 CAP,CERAMIC,CHIP ECCH0009506 27 pF,25V ,J ,NP0 ,TC ,0603 ,R/TP

6 C200 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP

6 C201 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP

6 C202 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP

6 C203 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP

6 C204 CAP,CERAMIC,CHIP ECCH0009514 10 pF,25V ,D ,X7R ,HD ,0603 ,R/TP

6 C205 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP

6 C206 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C207 CAP,CHIP,MAKER ECZH0000841 56 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP

6 C212 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP

6 C214 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP

6 C215 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP

6 C216 CAP,CHIP,MAKER ECZH0000841 56 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP

6 C218 CAP,CHIP,MAKER ECZH0000841 56 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP

6 C219 CAP,CERAMIC,CHIP ECCH0000161 33 nF,16V,K,X7R,HD,1005,R/TP

6 C224 CAP,CERAMIC,CHIP ECCH0000185 5.6 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LevelLocation

NoDesciption Part Number Spec Color Remark

6 C225 CAP,CHIP,MAKER ECZH0000841 56 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP

6 C226 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

6 C229 CAP,CHIP,MAKER ECZH0000846 8.2 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP

6 C400 CAP,TANTAL,CHIP ECTH0003701 10 uF,6.3V ,M ,L_ESR ,1608 ,R/TP

6 C401 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C402 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C403 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C404 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C405 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C406 CAP,CERAMIC,CHIP ECCH0009514 10 pF,25V ,D ,X7R ,HD ,0603 ,R/TP

6 C407 CAP,CERAMIC,CHIP ECCH0000109 8 pF,50V,D,NP0,TC,1005,R/TP

6 C408 CAP,CERAMIC,CHIP ECCH0000109 8 pF,50V,D,NP0,TC,1005,R/TP

6 C409 CAP,TANTAL,CHIP ECTH0003701 10 uF,6.3V ,M ,L_ESR ,1608 ,R/TP

6 C410 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C411 CAP,CERAMIC,CHIP ECCH0009514 10 pF,25V ,D ,X7R ,HD ,0603 ,R/TP

6 C413 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C414 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C415 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C416 CAP,CERAMIC,CHIP ECCH0009514 10 pF,25V ,D ,X7R ,HD ,0603 ,R/TP

6 C417 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C418 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C419 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C420 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C423 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP

6 C424 CAP,CHIP,MAKER ECZH0001420 1 uF,10V ,K ,X5R ,HD ,1608 ,R/TP

6 C425 CAP,CERAMIC,CHIP ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP

6 C426 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

6 C427 CAP,CHIP,MAKER ECZH0001421 2.2 uF,6.3V ,K ,X5R ,HD ,1608 ,R/TP

6 C428 CAP,CHIP,MAKER ECZH0001421 2.2 uF,6.3V ,K ,X5R ,HD ,1608 ,R/TP

6 C429 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP

6 C430 CAP,CERAMIC,CHIP ECCH0000137 330 pF,50V ,K ,X7R ,HD ,1005 ,R/TP

6 C431 CAP,CERAMIC,CHIP ECCH0000137 330 pF,50V ,K ,X7R ,HD ,1005 ,R/TP

6 C623 CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP

6 C624 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP

6 C720 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C721 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 C723 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LevelLocation

NoDesciption Part Number Spec Color Remark

6 C805 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C806 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP

6 C807 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP

6 CN702CONNECTOR,BOARD TOBOARD

ENBY0019901 80 PIN,0.4 mm,ETC , ,H=1.5, Socket

6 FB400 FILTER,BEAD,CHIP SFBH0000903 600 ohm,1005 ,

6 FB401 FILTER,BEAD,CHIP SFBH0000903 600 ohm,1005 ,

6 FB602 FILTER,BEAD,CHIP SFBH0002302 120 ohm,1608 ,CHIP BEAD, 2000mA

6 FL100 FILTER,SAW SFSY0024302 1842.5 MHz,1.4*1.1*0.6 ,SMD ,5pin, Unbal-Bal, 50//150

6 FL101 FILTER,SAW SFSY0024303 1960 MHz,1.4*1.1*0.6 ,SMD ,5pin, Unbal-Bal, 50//150

6 FL102 FILTER,SAW SFSY0024301 942.5 MHz,1.4*1.1*0.6 ,SMD ,5pin, Unbal-Bal, 50//150

6 FL200 FILTER,SAW SFSY00292012140 MHz,1.35*1.05*0.6 ,SMD ,Pb-free_WCDMA_Rx_200ohm

6 FL201 FILTER,SAW SFSY0028101 1950 MHz,1.4*1.4 ,SMD ,Pb-free_DCS1900_Rx

6 FL202 DUPLEXER,IMT SDMY00012021950 MHz,2140 MHz,1.8 dB,2.4 dB,43 dB,45dB,3.0*2.5*1.1 ,SMD ,SAW DUPLEXER ,; ,2140 ,45,1950 ,43 ,2.4 ,1.8 ,3.0*2.5*1.1 ,DUAL ,SMD ,R/TP

6 IS200 ISOLATOR,GSM SQGY0000101 1950 MHz,3.2x2.5x1.2 ,SMD ,IL 0.5dB, Isolation 14.5dB

6 L100 INDUCTOR,CHIP ELCH0003824 10 nH,J ,1005 ,R/TP ,chip inductor,PBFREE

6 L101 INDUCTOR,CHIP ELCH0003824 10 nH,J ,1005 ,R/TP ,chip inductor,PBFREE

6 L102 INDUCTOR,CHIP ELCH0001036 5.6 nH,S ,1005 ,R/TP ,PBFREE

6 L103 INDUCTOR,CHIP ELCH0001032 18 nH,J ,1005 ,R/TP ,PBFREE

6 L104 INDUCTOR,CHIP ELCH0003824 10 nH,J ,1005 ,R/TP ,chip inductor,PBFREE

6 L105 INDUCTOR,CHIP ELCH0001036 5.6 nH,S ,1005 ,R/TP ,PBFREE

6 L106 INDUCTOR,CHIP ELCH0001039 2.7 nH,S ,1005 ,R/TP ,PBFREE

6 L200 INDUCTOR,CHIP ELCH0005020 1 nH,S ,1005 ,R/TP ,

6 L201 INDUCTOR,SMD,POWER ELCP0008003 3.3 uH,M ,2.5*2.0*1.0 ,R/TP ,Chip power

6 L202 INDUCTOR,CHIP ELCH0005016 8.2 nH,J ,1005 ,R/TP ,

6 L203 INDUCTOR,CHIP ELCH0001036 5.6 nH,S ,1005 ,R/TP ,PBFREE

6 L204 INDUCTOR,CHIP ELCH0001035 4.7 nH,S ,1005 ,R/TP ,PBFREE

6 L401 INDUCTOR,SMD,POWER ELCP00080044.7 uH,M ,1 ,R/TP , ,; , ,0.3NH , , , , , ,NON SHIELD,2.5X2X1MM ,11MM ,R/TP

6 L402 INDUCTOR,SMD,POWER ELCP00080044.7 uH,M ,1 ,R/TP , ,; , ,0.3NH , , , , , ,NON SHIELD,2.5X2X1MM ,11MM ,R/TP

6 L403 INDUCTOR,CHIP ELCH0010401 2.2 uH,M ,1005 ,R/TP ,

6 N200COUPLER,RFDIRECTIONAL

SCDY000350119.3 dB,0.3 dB,25 dB,1.6*0.8*0.6 ,SMD ,1920M ~1980M, 6pin

6 R101 RES,CHIP,MAKER ERHZ0000428 18 ohm,1/16W ,J ,1005 ,R/TP

6 R103 RES,CHIP,MAKER ERHZ0000458 300 ohm,1/16W ,J ,1005 ,R/TP

6 R104 RES,CHIP,MAKER ERHZ0000458 300 ohm,1/16W ,J ,1005 ,R/TP

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12. EXPLODED VIEW & REPLACEMENT PART LIST

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LevelLocation

NoDesciption Part Number Spec Color Remark

6 R106 RES,CHIP,MAKER ERHZ0000522 24 ohm,1/16W ,J ,1005 ,R/TP

6 R107 RES,CHIP ERHY0003501 220 ohm,1/16W ,J ,1005 ,R/TP

6 R108 RES,CHIP ERHY0003501 220 ohm,1/16W ,J ,1005 ,R/TP

6 R109 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R110 RES,CHIP,MAKER ERHZ0000485 4700 ohm,1/16W ,J ,1005 ,R/TP

6 R111 THERMISTOR SETY0007101 NTC ,4700 ohm,SMD ,1005 J B:3500K

6 R112 RES,CHIP ERHY0009536 100 Kohm,1/20W(0.05W) ,F ,0603 ,R/TP

6 R113 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R114 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R200 RES,CHIP,MAKER ERHZ0000483 47 ohm,1/16W ,J ,1005 ,R/TP

6 R201 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP

6 R202 RES,CHIP ERHY0003501 220 ohm,1/16W ,J ,1005 ,R/TP

6 R203 RES,CHIP,MAKER ERHZ0000500 62 ohm,1/16W ,J ,1005 ,R/TP

6 R204 RES,CHIP,MAKER ERHZ0000500 62 ohm,1/16W ,J ,1005 ,R/TP

6 R205 RES,CHIP ERHY0009515 220 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R206 RES,CHIP ERHY0009515 220 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R207 RES,CHIP ERHY0009515 220 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R208 RES,CHIP ERHY0009515 220 ohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R400PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R401PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R402PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R413PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R414PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R416 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP

6 R417 RES,CHIP ERHY0009504 1 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R418 RES,CHIP ERHY0009504 1 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R422 RES,CHIP,MAKER ERHZ0000433 180 Kohm,1/16W ,J ,1005 ,R/TP

6 R424 RES,CHIP,MAKER ERHZ0000507 68 Kohm,1/16W ,J ,1005 ,R/TP

6 R425PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R427 RES,CHIP ERHY0000283 130K ohm,1/16W,J,1005,R/TP

6 R428 RES,CHIP ERHY0009527 47 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP

6 R429 RES,CHIP ERHY0000289 270K ohm,1/16W,J,1005,R/TP

6 R430PCB ASSY,MAIN,PADSHORT

SAFP0000501

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12. EXPLODED VIEW & REPLACEMENT PART LIST

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LevelLocation

NoDesciption Part Number Spec Color Remark

6 R432PCB ASSY,MAIN,PADOPEN

SAFO0000501 0OHM_1005_DNI

6 R433 RES,CHIP,MAKER ERHZ0000509 75 ohm,1/16W ,J ,1005 ,R/TP

6 R434 RES,CHIP ERHY0000170 390 ohm,1/16W ,F ,1005 ,R/TP

6 R625PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R700PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R701PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 R800 RES,CHIP,MAKER ERHZ0000437 2 Kohm,1/16W ,J ,1005 ,R/TP

6 R801 RES,CHIP,MAKER ERHZ0000443 2200 ohm,1/16W ,J ,1005 ,R/TP

6 R802 RES,CHIP,MAKER ERHZ0000443 2200 ohm,1/16W ,J ,1005 ,R/TP

6 R804PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R805PCB ASSY,MAIN,PADSHORT

SAFP0000401

6 R815PCB ASSY,MAIN,PADSHORT

SAFP0000501

6 SC100 FRAME,SHIELD MFEA0021501 PRESS, STS, , , , , Without Color 47

6 SPFY00 PCB,MAIN SPFY0174201FR-4 ,0.8 mm,LX-BUMP 10 ,KF750 AMP MAIN PCB ,; , ,, , , , , , ,

6 U100 RF MODULE,HANDSET SMRH0004201 MHz, MHz,QUAD EDGE 6x6 ,EMP U300 Tx Module

6 U102 IC EUSY0296201HVQFN40 ,40 PIN,R/TP ,RF3000 EDGE Transceiver, 6x6x1.0, 40 HVQFN

6 U200 PAM SMPY0013601 dBm,40 %,90 mA, dBc,29 dB,4x4x1 ,SMD ,HSDPA

6 U201 IC EUSY0222103 MicroSMD ,8 PIN,R/TP ,DCDC for PAM 650mA, ~3.4V

6 U202 IC EUSY0299401 ,6 PIN,R/TP ,0.3_2v

6 U203 IC EUSY0327901HVQFN40 ,40 PIN,R/TP ,WCDMA Transceiver, 6 * 6 *1.0, OM6195HN

6 U403 IC EUSY0154416MLF ,12 PIN,R/TP ,Dual DCDC,800mA, adj ,; ,IC,SubPMIC

6 U404 IC EUSY0330701FPBGA ,180 PIN,R/TP ,5M Camera,VGA30,Multi audiocodec

6 U603 IC EUSY0319201 DFN ,10 PIN,R/TP ,OVP

6 U703 IC EUSY0319001WDFN-8L ,8 PIN,R/TP ,300mA/300mA 2.8V/1.8V DualLDO

6 U800 IC EUSY0334201BGA ,12 PIN,R/TP ,4-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR (ZXU type)

6 X100 X-TAL EXXY002280126 MHz,10 PPM,15 pF,40 ohm,SMD ,3.2*2.5*0.85,10ppm at -30'C ~ +85'C, C0 1.6pF, C1 5.7fF

6 X400 X-TAL EXXY002330127 MHz,50 PPM,9 pF,50 ohm,SMD ,3.2*2.5*0.7 ,30ppmat -20'C ~ +70'C, Pb Free

5 SPKY00 PCB,SIDEKEY SPKY0056301POLYI ,0.2 mm,DOUBLE ,KF750 VOLUME SIDEKEY ,; ,, , , , , , , ,

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12. EXPLODED VIEW & REPLACEMENT PART LIST

LGE Internal Use OnlyCopyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

LevelLocation

NoDesciption Part Number Spec Color Remark

4 SVCY00 CAMERA SVCY0017001CMOS ,MEGA ,5M AF [Micron 1/3.2", MI5130, Parallel,FPCB]

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

12. EXPLODED VIEW & REPLACEMENT PART LIST

- 258 -

12.3 Accessory Note: This Chapter is used for reference, Part orderis ordered by SBOM standard on GCSC

LevelLocation

NoDesciption Part Number Spec Color Remark

3 MHBY00 HANDSTRAP MHBY0005603 Libra Hand Strap Without Color

3 SBPL00 BATTERY PACK,LI-ION SBPL0085703

3.7 V,800 mAh,1 CELL,PRISMATIC ,CMW PJT BATT,Innerpack, Europe Label, Pb-Free ,; ,3.7 ,800 ,0.2C,PRISMATIC ,43x34x46 , ,ALLTEL SILVER ,Innerpack,CMW Slide & Folder

AIRY BLUE

BATTERY PACK,LI-ION SBPL00878033.7 V,800 mAh,1 CELL,PRISMATIC,463443,innerpack,EUROP ,; , , , ,PRISMATIC , , ,BLACK, ,

3 SGDY00 DATA CABLE SGDY0010908; ,[empty] ,[empty] ,[empty] ,18pin 6.2mm. NYX BoxPackage ,BLACK , ,N

3 SGEY00EAR PHONE/EAR MIKESET

SGEY0005571

; ,RMS 10mW(0.4V,RM3 ,16 OHM ,93dB,1KHZ,1mW,65dB 10KHZ ,104dB 100KHZ ,[empty] ,BLACK ,18PMMI CONNECTOR ,Balance wire 250mm,Earphone,Stereo

3 SSAD00 ADAPTOR,AC-DC SSAD0025003100-240V ,5060 Hz,5.1 V,.7 A,CE ,England, 18pin plug,Nyx packing ,; , , , , , ,WALL 2P ,I/O CONNECTOR ,

ADAPTOR,AC-DC SSAD0025004100-240V ,5060 Hz,5.1 V,0.7 A,CE ,18pin, UK, Viewtypacking ,; , ,5.1V ,0.7A , , ,WALL 2P ,I/O CONNECTOR ,

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Note

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Note