diagrama LG prolite -D686
description
Transcript of diagrama LG prolite -D686
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Table Of Contents
1. INTRODUCTION ..................................................................... 3
1.1 Purpose ........................................................................................................3
1.2 Regulatory Information .........................................................................3
2. PERFORMANCE...................................................................... 5
2.1 Product Name ............................................................................................5
2.2 Supporting Standard ..............................................................................5
2.3 Main Parts : GSM Solution .....................................................................5
2.4 HW Features ...............................................................................................6
2.5 HW SPEC ......................................................................................................82.6 D686 Figures ........................................................................................... 22
3. TROUBLE SHOOTING .......................................................... 23
3.1 WCDMA Rx Part ...................................................................................... 23
3.2 WCDMA Tx Part ...................................................................................... 37
3.3 GSM Rx Part ............................................................................................. 54
3.4 GSM Tx Part Troubleshooting ........................................................... 67
3.5 Power ......................................................................................................... 75
3.6 Charging ................................................................................................... 80
3.7 USB .............................................................................................................. 82
3.8 Audio .......................................................................................................... 83
3.9 6 AXIS Sensor .......................................................................................... 97
3.10 Proximity Sensor ...............................................................................100
3.11 Touch Sensor ......................................................................................102
3.12 Vibrator .................................................................................................104
3.13 Camera ..................................................................................................106
3.14 LCD .........................................................................................................110
3.15 BT/Wi ...................................................................................................113
3.16 GPS Part ................................................................................................1173.17 FM Radio ...............................................................................................122
3.18 IRRC ........................................................................................................124
4. DOWNLOAD .......................................................................127
5. BLOCK DIAGRAM .............................................................. 144
6. CIRCUIT DIAGRAM ............................................................ 152
7. BGA PIN MAP .....................................................................161
8. PCB LAYOUT ....................................................................... 165
9. CALIBRATION .....................................................................167
10. HIDDEN MENU ................................................................. 186
11. DISASSEMBLE GUIDE ...................................................... 210
12. EXPLODED VIEW & REPLACEMENT PART LIST .............214
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1. INTRODUCTION
1. INTRODUCTION
This manual provides the information necessary to repair, calibration, description and download the featuresof this model.
1.1 Purpose
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 associatedwith your telecommunications system. System users are responsible for programming and configuringthe equipment to prevent unauthorized use. The manufacturer does not warrant that this product isimmune from the above case but will prevent unauthorized use of common carriertelecommunication service of facilities accessed through orconnected to it. The manufacturer will not be responsible for any charges that result from suchunauthorized use.
1.2 Regulatory InformationA. Security
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 as repairis 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 net work,the telephone company is required to give advanced written notice to the user, allowing the user to take
appropriate steps to maintain telephone service.
D. Maintenance LimitationMaintenance limitations on the phones must be performed only by the manufacturer or its authorized agent. 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 system and may void anyremaining warranty.
E. Notice of Radiated Emission
This model complies with rules regarding radiation and radio frequency emission as defined by local
regulatory agencies. In accordance with these agencies, you may be required to provide information such asthe following to the end user.
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1. INTRODUCTION
ATTENTION
H. Electrostatic Sensitive Devices
Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the sign. Followinginformation 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.
A phone may interfere with sensitive laboratory equipment, medical equipment, etc. Interference fromunsuppressed engines or electric motors may cause problems.
G. Interference and Attenuation
F. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightlydifferent.
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2. PERFORMANCE
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2. PERFORMANCE
2.1 Product Name
LG-D686 : WCDMA 850/900/1900/2100+GSM850/EGSM/DCS/PCS
(HSUPA 5.8Mbps(cat6)/HSDPA 7.2Mbps(cat8)/GPRS Class12/EDGE Rx only Class12)
2.2 Supporting Standard
Supporting Standard
WCDMA(FDD1,2,5,8)/EGSM/GSM850/DCS1800/PCS1900
with seamless handover
Phase 2+(include AMR)SIM Toolkit : Class 1, 2, 3, C-E
Frequency Range
WCDMA(FDD1) TX : 1920 – 1980 MHz
WCDMA(FDD1) RX : 2110 – 2170 MHz
WCDMA(FDD2) TX : 1850 – 1908 MHz
WCDMA(FDD2) RX : 1930 –1990 MHz
WCDMA(FDD5) TX : 824 – 849 MHz
WCDMA(FDD5) RX : 869 – 894 MHz
WCDMA(FDD8) TX : 880 – 915 MHz
WCDMA(FDD8) RX : 925 – 960 MHz
EGSM TX : 880 – 915 MHz
EGSM RX : 925 – 960 MHz
GSM850 TX : 824 – 849 MHz
GSM850 RX : 869 – 894 MHz
DCS1800 TX :1710 – 1785 MHz
DCS1800 RX : 1805 – 1880 MHz
PCS1900 TX : 1850 – 1910 MHz
PCS1900 RX : 1930 – 1990 MHz
Application Standard
Item Part Name Comment
AP Chip MT6577 (MTK)
CP Chip MT6577 (MTK)
2.3 Main Parts : GSM Solution
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2. PERFORMANCE
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2.4 HW Features
List Type / Spec.
1. Phone Type DOP Type
2. Size 150.25 x 76.94 x 9.43mm
3. Weight 163.9 g
4. BatteryBrazil : 3,040mAh ( typ.)
Other Country : 3,140mAh ( typ.), 3,040mAh(min) (Li-Ion)
5.Chipset MT6577
6. Memory 8GB(EMMC) +8Gb(LPDDR2)
7. LCD
Size 5.5 inch
Dot 540(H) X 960(V)
Color 16.7M colors
Display Type Active matrix TFT, Transmissive Type
NTSC Typ. 70%
Contrast Ratio Typ. 1000:1
Pixel Pitch 0. 042mm (201.6ppi)
Color temperature 5000 ~ 9000(K) ( typ. 6500K)
8. Main Camera (8M)
Type CMOS image sensor
Resolution 3296(H) X 2512(V) pixels.
Frame Rate 22.5 fps@ Full Size(3280*2464)
View Angle 71.4˚ ± 1˚ (Diagonal)
Image Scaling Down 8M(3264x2448), W6M(3264x1836),
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5M(2592x1944), 1M(1280x960)
Pixel x size 1.1um X 1.1um (square pixel)
10. Audio
1) MIDI MIDI
2) Mono 15 X 11 X 3T Speaker
3) Receiver 13 X 07 X 2.7T Wideband Receiver
11. BluetoothEffective Distance 10M
Distance 0 m ~ 10 m (depend on environment)
12. WLAN
standard IEEE 802.11 b/g/n
Throughput Max 40Mbps (SDIO Driver performance)
depend on environment 0 ~ 50m (depend on environment)
13. GPS type A-GPS, GNSS
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2. PERFORMANCE
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2.5. HW SPEC
1) WCDMA transmitter specication
Item Spec. Min Typ. Max Unit
Maximum OutputPower
Power class Ⅲ 21.0 23.0 25.0 dBm/3.84MHz
FrequencyAccuracy
- -200 - +200 Hz
Minimum OutputPower - - - -50 dBm/3.84MHz
OccupiedBandwidth
- - - 4.6 MHz
Adjacent ChannelLeakage Power
Ratio
Δf = ± 5MHz - - -33 dBm/3.84MHz
Δf = ± 10MHz - - -43 dBm/3.84MHz
Error VectorMagnitude(EVM) - - - 17 %
Peak CodeDomain Error - - - 15 dBm/3.84MHz
Open LoopOutput Power
Ior =-106.7dBm/3.84MHz -46.7 - -28.7 dBm/3.84MHz
Ior =-65.7dBm/3.84MHz -23.0 - -5.0 dBm/3.84MHz
Ior =-25.0dBm/3.84MHz -0.0 - 14.0 dBm/3.84MHz
Transmit OffPower - - - -56 dBm/3.84MHz
SpectrumEmission Mask
Δf = 2.5~3.5MHz -35-15 * (Δf-2.5) dBc/30KHz
Δf = 3.5~7.5MHz -35-1 * (Δf-3.5) dBc/1MHz
Δf = 7.5~8.5MHz -39 10 * (Δf-7.5) dBc/1MHz
Δf = 8.5~12.5MHz -49 dBc/1MHz
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Transmit SpuriousEmission
9kHz ~ 150kHz -36 dBm
150kHz ~ 30MHz -36 dBm
30MHz ~ 1GHz -36 dBm
1GHz ~ 12.5GHz -30 dBm
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Item Specification
Receive Frequency
FDD1: 2110 ~ 2170 MHz
FDD2: 1930 ~ 1990 MHz
FDD5: 869 MHz ~ 894 MHz
FDD8: 925 MHz ~ 960 MHz
Reference Sensitivity Level<REFÎ or>
FDD1 : BER < 0.001 when Îor = -106.7 dBm / 3.84 MHz
FDD2 : BER < 0.001 when Îor = -104.7 dBm / 3.84 MHzFDD5 : BER < 0.001 when Îor = -104.7 dBm / 3.84 MHz
FDD8 : BER < 0.001 when Îor = -103.7 dBm / 3.84 MHz
Maximum Input Level BER < 0.001 when Îor = -25 dBm / 3.84 MHz
Adjacent Channel Selectivity
(ACS)
ACS > 33 dB where BER < 0.001 when
Îor = <REFÎ or> + 14 dB / 3.84 MHz
& Ioac = –52 dBm / 3.84 MHz @ ±5 MHz
Blocking Characteristic
BER < 0.001 when Îor = <REFÎ or> + 3 dB / 3.84 MHz
& Iblocking = -56 dBm / 3.84 MHz @ Fuw(offset) = ±10 MHzor Iblocking = -44 dBm / 3.84 MHz @ Fuw(offset) = ±15 MHz
Spurious ResponseBER < 0.001 when Îor = <REFÎ or> + 3 dB / 3.84 MHz
& Iblocking = -44 dBm
Intermodulation
BER < 0.001 when Îor= <REFÎ or> + 3 dB / 3.84 MHz
& Iouw1 = -46 dBm @ Fuw1(offset) = ±10 MHz
& Iouw2 = -46 dBm / 3.84 MHz @ Fuw2(offset) = ±20 MHz
Spurious Emissions< -57 dBm / 100 kHz BW @ 9 kHz ≤ f < 1 GHz
< -47 dBm / 1 MHz BW @ 1 GHz ≤ f ≤ 12.75 GHz
Inner Loop Power Control
In Uplink
Adjust output(TPC command)
cmd 1dB 2dB 3dB
+1 +0.5/1.5 +1/3 +1.5/4
0 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5
-1 -0.5/-1.5 -1/-3 -1.5/-4
group(10equal command group)
+1 +8/+12 +16/+24
2) WCDMA receiver specication
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2. PERFORMANCE
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Item Spec. Min Typ. Max Unit
Trandsmitter
5.2.A MaximumOutput Power
with HS-DPCCH
1/15 ≤ βc/β d ≤ 12/15
13/15 ≤ β c/βd ≤ 15/8
15/7 ≤ β c/βd ≤ 15/0
21.0
20
19
23.0
23.0
22.5
25.0
25
25
dBm/3.84MHz
5.7A HS-DPCCHMAX
/
0dBm
Step 0 0 dBm +/- 1 dB dB
Step 1 –Step 0 6 dB +/- 2.3 dB dB
Step 2 –Step 3 1 dB +/- 0.6 dB dB
Step 5 –Step 4 0 dB +/- 0.6 dB dB
Step 6 –Step 7 5 dB +/- 2.3 dB dB
5.9A SpectrumEmission Mask
with HS-DPCCH
Δf = 2.5~3.5MHz -35-15 * (Δf-2.5) dBc/30KHz
Δf = 3.5~7.5MHz -35-1 * (Δf-3.5) dBc/1MHz
Δf = 7.5~8.5MHz -39 10 * (Δf-7.5) dBc/1MHz
Δf = 8.5~12.5MHz -49 dBc/1MHz
5.10A AdjacentChannel LeakagePower Ratio with
HS-DPCCH
Δf = ± 5MHz - - -33 dBm/3.84MHz
Δf = ± 10MHz - - -43 dBm/3.84MHz
5.13.1A ErrorVector
Magnitude (EVM)with HS-DPCCH
MAX Power
-20 dBm- - 17.5 %
Receiver 6.3A Maximum Input Level forHS-PDSCHReception
Pin = -25dBm - - 10 BLER(%)
3) HSDPA transmitter specication
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2. PERFORMANCE
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Item Spec.
Phase Error Rms : 5° Peak : 20 °
Frequency Error GSM : 0.1 ppm DCS/PCS : 0.1 ppm
EMC(Radiated Spurious EmissionDisturbance) GSM/DCS : < -28dBm
Transmitter Output power and Burst Timing GSM : 5dBm – 33dBm ± 3dB DCS/PCS : 0dBm – 30dBm ± 3dB
Burst Timing <3.69us Spectrum due to modulation out to less
than 1800kHz offset 200kHz : -36dBm
600kHz : -51dBm/-56dBm
Spectrum due to modulation out to largerthan 1800kHz offset to the edge of the
transmit band
GSM : 1800-3000kHz :< -63dBc(-46dBm)
3000kHz-6000kHz : <-65dBc(-46dBm) 6000kHz < : < -71dBc(-46dBm)
DCS : 1800-3000kHz :< -65dBc(-51dBm)
6000kHz < : < -73dBc(-51dBm)
Spectrum due to switching transient 400kHz : -19dBm/-22dBm(5/0), -23dBm 600kHz : -21dBm/-24dBm(5/0), -26dBm
Reference Sensitivity – TCH/FS Class II(RBER) : -105dBm(2.439%) Usable receiver input level range 0.012(-15 - -40dBm)
Intermodulation rejection – Speechchannels
± 800kHz, ± 1600kHz : -98dBm/-96dBm (2.439%)
AM Suppression - GSM : -31dBm - DCS : -29dBm
-98dBm/-96dBm (2.439%)
Timing Advance ± 0.5T
4) GSM receiver specication
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2. PERFORMANCE
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Item Spec. Min Typ. Max Unit
Output Power DH5PRBS9
Power(Class I)
0 - 20 dBm
Power Density DH5PRBS9 @100kHz RBW - +20 dBm
Power Control DH1PRBS9
Step size 2 - 8 dB
Power(min) - 4 dBm
Frequency Range DH5PRBS9
-30dBc@100kHz RBW
2400 - 2483.5 MHz
Tx Output Spectrum(20dB BW)
DH5PRBS9
Δf =f H-f L - 1 MHz
Tx Output Spectrum(Adjacent Output
Power)DH5PRBS9
@M-N = 2 - -20 dBm
@M-N≥ 3 - -40 dBm
Modulation Index
DH511110000
f1AVG 140 - 175 kHz
DH510101010
f2MAX 115 - kHz
f2AVG /f1AVG 0.8 -
Initial Carrier Freq. Tolerance DH5PRBS9 -75 - +75 kHz
Carrier Frequency Drift
DH110101010
Freq. Drift -25 - +25 kHz
Drift Rate -20 - +20 kHz/50us
DH310101010
Freq. Drift -40 - +40 kHz
Drift Rate -20 - +20 kHz/50us
DH510101010
Freq. Drift -40 - +40 kHz
Drift Rate -20 - +20 kHz/50us
5) Bluetooth transmitter specication
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Item Spec. BER=0.1% Min Typ. Max Unit
Sensitivity
(Single Slot Packet)
DH1
PRBS9
Input power @BT_w
- - -70 dBm
Sensitivity
(Multi Slot Packet)
DH5
PRBS9
Input power @BT_w
- - -70 dBm
C/I Performance*
DH1
PRBS9Input power @BT_i
C/I@Co-Channel
-60dBm @ BT- 11
dB
C/I @1MHz
-60dBm@ BT- 0
C/I @2MHz
-60dBm@ BT- -30
C/I @≥3MHz
-67dBm@ BT-40 -37
C/I @Image
-67dBm@ BT- -9
C/I @ Image± 1MHz
-67dBm@ BT- -20
Blocking Performance
DH1
PRBS9
Input power @CW
30M ~2 GHz-67dBm@ BT
-10 -
dBm
2 ~ 2.4 GHz
-67dBm@ BT-27 -
2.5 ~ 3 GHz
-67dBm@ BT-27 -
3 ~ 12.75 GHz
-67dBm@ BT-10 -
6) Bluetooth receiver specication
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Intermodulation
Performance
DH1
PRBS9
Input power @CW_i
Δf = +5MHz (CW_i)
Δf = +10MHz (BT_i)
-64dBm@ BT_w
-39 - dBm
Δf = -5MHz (CW_i)
Δf = -10MHz (BT_i)
-64dBm@ BT_w
-39 - dBm
Maximum Input LevelDH1
PRBS9
Input power @BT_w
- -20 - dBm
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2. PERFORMANCE
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Item Specification
Transmit Frequency 2400 MHz ~ 2483.5 MHz ( CH1~CH13)
Tx Power Level ≤ 20dBm under (Europe), ≤ 30dBm under (USA)
Frequency Tolerance within ±25 PPM
Chip clock Frequency
Tolerancewithin ±25 PPM
Spectrum Mask≤ -30 @ fc-22MHz< f <fc-11MHz and fc+11MHz< f <fc+22MHz
≤ -50 @ f < fc-22MHz and f > fc+22MHz
Power ramp on/off time ≤ 2us
Carrier Suppression ≤ -15dB
Modulation Accuracy
(Peak EVM)≤ 35%
Spurious Emissions
< -36 dBm @ 30MHz ~ 1GHz
< -30 dBm above @ 1GHz ~ 12.75GHz
< -47 dBm @ 1.8GHz ~ 1.9GHz
< -47 dBm @ 5.15GHz ~ 5.3GHz
Rx Min input Sensitivity ≤ -76dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8%
Rx Max input Sensitivity ≥ -10dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8%
Rx Adjacent Channel
Rejection
≥ 35dB @FER ≤ 8%,
interference input signal -70dBm@fc±25MHz(11Mbps)
7) WLAN 802.11b transceiver specication
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2. PERFORMANCE
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Item Specification
Transmit Frequency 2400 MHz ~ 2483.5 MHz ( CH1~CH13)
Tx Power Level ≤ 20dBm under (Europe), ≤ 30dBm under (USA)
Frequency Tolerance within ±25 PPM
Chip clock Frequency
Tolerancewithin ±25 PPM
Spectrum Mask
≤ -20 @ ±11MHz offset (9Mhz ~ 11MHz)
≤ -28 @ ±20MHz offset (11MHz ~ 20Mhz)
≤ -40 @ ±30MHz offset (20MHz ~ 30Mhz)
Transmitter constellation error
(rms EVM)≤ -5dB
Spurious Emissions
< -36 dBm @ 30MHz ~ 1GHz
< -30 dBm above @ 1GHz ~ 12.75GHz
< -47 dBm @ 1.8GHz ~ 1.9GHz
< -47 dBm @ 5.15GHz ~ 5.3GHz
Rx Min input Sensitivity
PER ≤ 10%
-82dBm@6Mbps, -81dBm@9Mbps, -79dBm@12Mbps
-77dBm@18Mbps, -74dBm@24Mbps, -70dBm@36Mbps
-66dBm@48Mbps, -65dBm@54Mbps
Rx Max input Sensitivity ≥ -20dBm(6,9,12,18,24,36,48,54Mbps) @ PER ≤ 10%
Rx Adjacent Channel
Rejection
PER ≤ 10%,
ACR ≥ 16dB@6Mbps, ACR ≥ 15dB@9Mbps,
ACR ≥ 13dB@12Mbps, ACR ≥ 11dB@18Mbps,
ACR ≥ 8dB@24Mbps, ACR ≥ 4dB@36Mbps
ACR ≥ 0dB@48Mbps, ACR ≥ -1dB@54Mbps
※ ACR shall be measured by setting the desired signal's strength 3 dB
above the rate-dependent
sensitivity specified in min input sensitivity
8) WLAN 802.11g transceiver specication
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2. PERFORMANCE
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9) WLAN 802.11n transceiver specication
Item Specification
Transmit Frequency 2400 MHz ~ 2483.5 MHz ( CH1~CH13)
Tx Power Level ≤ 20dBm under (Europe), ≤ 30dBm under (USA)
Frequency Tolerance within ±25 PPM
Chip clock Frequency
Tolerancewithin ±25 PPM
Spectrum Mask
≤ -20 @ ±11MHz offset (9Mhz ~ 11MHz)
≤ -28 @ ±20MHz offset (11MHz ~ 20Mhz)
≤ -45 @ ±30MHz offset (20MHz ~ 30Mhz)
Transmitter constellation error
(rms EVM)
≤ [email protected], ≤ -10dB@13Mbps, ≤ [email protected],
≤ -16dB@26Mbps, ≤ -19dB@39Mbps, ≤ -22dB@52Mbps,
≤ [email protected], ≤ -28dB@65Mbps
Spurious Emissions
< -36 dBm @ 30MHz ~ 1GHz
< -30 dBm above @ 1GHz ~ 12.75GHz
< -47 dBm @ 1.8GHz ~ 1.9GHz
< -47 dBm @ 5.15GHz ~ 5.3GHz
Rx Min input Sensitivity
PER ≤ 10%
[email protected], -79dBm@13Mbps, [email protected]
-74dBm@26Mbps, -70dBm@39Mbps, -66dBm@52Mbps
[email protected], -64dBm@65Mbps
Rx Max input Sensitivity ≥ -20dBm(6.5,13,19.5,26,39,52,58.5,65Mbps) @ PER ≤ 10%
Rx Adjacent Channel
Rejection
PER ≤ 10%,
ACR ≥ [email protected], ACR ≥ 13dB@13Mbps,
ACR ≥ [email protected], ACR ≥ 8dB@26Mbps,
ACR ≥ 4dB@39Mbps, ACR ≥ 0dB@52Mbps
ACR ≥ [email protected], ACR ≥ -2dB@65Mbps
※
ACR shall be measured by setting the desired signal's strength3 dB above the rate-dependent
sensitivity specified in min input sensitivity
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2. PERFORMANCE
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10) GPS receiver specication
11) Current consumption
** Test condition for Standby current consumption should be as below.
: Measurement time 1hr, with Agilent & CMT JIG
Item Spec.
Sensitivity Test Success rate ≥ 60% @ -154 dBm
Item Specification
WCDMA GSM
1. Sleep Mode Under 7mA Under 7mA
2. Sleep : connector Ear jack Under 7mA Under 7mA
3. Current(Sleep & Idle AVG) Under 10mA @ DRX 7 Under 10mA @ P.P 5
4. BT Connected idle Under 15mA Under 15mA
5. Talk Mode
- Max Pwr
Under 600mA @ Avg - Tx 10dBm
Under 300 mA @ Avg
GSM LVL 5 under 300 mA @ Avg
6. Power Off Mode under 500uA Under 500 uA
7. Backup Battery under 5uA under 5uA
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2. PERFORMANCE
- 20 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
BAR WCDMA
GSM/DCS/PCS RSSI RSCP
5 Over -85 ±2dBm Over -88 ±2dBm Over -91 ±2dBm
5 4 -86 ±2dBm -89 ±2dBm -92 ±2dBm
4 3 -90 ±2dBm -93 ±2dBm -96 ±2dBm 3 2 -96 ±2dBm -99 ±2dBm -100 ±2dBm
2 1 -100 ±2dBm -103 ±2dBm -104 ±2dBm
1 0 -107 ±3dBm -109 ±3dBm -106 ±3dBm
Standby (WCDMA)
Over 350 Hours Under 4.5mA DRX 7 @ BATT Capacity : 3140mAh
12) RSSI indicator (Based on Cell power)
13) Current consumption
14) Charging hour
Under 4 hour (3140mAh battery, 1.2A TA)
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2. PERFORMANCE
- 21 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Battery Bar Specification
BAR 20 (Full) 98% over
remain%
BAR 20 --> 19 98% ◊ 97%
BAR 19 --> 18 93% ◊ 92%
BAR 18 --> 17 88% ◊ 87%
BAR 17 --> 16 83% ◊ 82%
BAR 16 --> 15 78% ◊ 77%
BAR 15 --> 14 73% ◊ 72%
BAR 14 --> 13 68% ◊ 67%
BAR 13 --> 12 63% ◊ 62%
BAR 12 --> 11 58% ◊ 57%
BAR 11 --> 10 53% ◊ 52%
BAR 10 --> 9 48% ◊ 47%
BAR 9 --> 8 43% ◊ 42%
BAR 8 --> 7 38% ◊ 37%
BAR 7 --> 6 33% ◊ 32%
BAR 6 --> 5 28% ◊ 27%
BAR 5 --> 4 23% ◊ 22%
BAR 4 --> 3 16% ◊ 15%
BAR 3 --> 2 13% ◊ 12%
BAR 2 --> 1 8%◊
7%BAR 1 --> 0 3% ◊ 2%
Low Battery Pop-up 4% ~ 15% : One Time popup (No call)
Critical Low Battery Pop-up 0% ~ 3% : Every Level change popup (No call)
Power Off 1%
15) Battery indicator
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2. PERFORMANCE
- 22 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
2.6 D686 Figures
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3. TROUBLE SHOOTING
- 23 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3. TROUBLE SHOOTING
3.1 WCDMA Rx Part
3.1.1 WCDMA_B1/B2/B5/B8 Rx
Rx TEST SETUP
- DL Channel : 10700 / 9800/ 44407 / 3013
- Sector Power(dBm) : -23 /-23 /-23.5 / -23.5
1. Check DC Power Supply circuit
START
2. Check MT6162 XO
3.Check RF Signal path
Re download S/W & Cal
* There are no Test Points on the IQ Data Line. So It is impossible to check the IQ Data Wave form.
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3. TROUBLE SHOOTING
- 24 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
MT6162(U101)
SKY77589 (U102)
DPX(FL106) B8
DPX(FL102) B2
DPXB1 (FL105)
DPX B5 (FL103)
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3. TROUBLE SHOOTING
- 25 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
START
No
DC Power Supply Circuit is OK See Next page to Check XO Circuit
Yes
Check TP1(C109)+1V8_VRF_MTK is OK?
The Problem may be Logic part
Refer to Logic troubleshoot
The Problem may be Logic partRefer to Logic troubleshoot
The Problem may be Logic part
Refer to Logic troubleshoot
No
No
Yes
Check TP2(C103)+2V85_VRF_MTK is OK?
Yes
Check TP3(C118)+2V8_VTCXO_MTK is OK?
3.1.1.1 Checking DC Power supply circuit
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3. TROUBLE SHOOTING
- 26 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
MT6162(U101)
TP2: C103(+2V85_VRF_MTK )
TP1 : C109(+1V8_VRF_MTK )
TP3: C118(+2V8_VTCXO_MTK )
C
1 0 6
3 9 p
1
2
U101
1 B 1
C 2
D 1
E 2
F 1
G 2
H 1
J 2
K 1
L 2
A12
B11 A10
B9
A8B7
A6
B5
A4B3 A2
REFCLK1REFCLK2REFCLK3
VDDXO
NC4
XO2XO1/REFIN
VTUNE
CLK_MODEVSUP2b
GND1
V S U P 1
V D D
_ 1 8
V S U P 2 a
V D D
_ 2 8 b
C L K
D A T A 0
D A T A 1
V I N T
E N
G N D 2
P G N D
1 u
C 1 0 8
1
2
C112 1n
1nC114
C118 0.1u
C 11 9 1 u
C 1 0 9
1 u
1
2
C 1 0 3
1 u
1
2
C 1 0 5
1 u
1
2
+ 2 V 8 5
_ V R F
_ M T K
+2V8_VTCXO_MTK
SYSCLK
B S I 1
_ C L K
B S I 1
_ C S 1
B S I 1
_ D A T A
B S I 1
_ C S 0
+ 1 V 8
_ V I O
_ M T K
+ 1 V 8
_ V R F
_ M T K
MAIN_CLK_26MHz
TP3
TP2
TP1
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3. TROUBLE SHOOTING
- 27 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
START
YES
Replace Main B/D
NO
Check TP1(C114)Is it 26MHz?
XO circuit is Ok . See next page
to check RF signal path.
XO circuit is Ok . See next page
to check RF signal path.
YES
NO
Is it similar ?
Replace U801 and then
check TP1(C122)
3.1.1.2 Checking MT6162 XO circuit
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3. TROUBLE SHOOTING
- 28 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
C
1 0 6
3 9 p
1
2
U101
1 B 1
C 2
D 1
E 2
F 1
G 2
H 1
J 2
K 1
L 2
A12
B11 A10
B9
A8B7
A6
B5
A4B3 A2
REFCLK1REFCLK2REFCLK3
VDDXO
NC4
XO2XO1/REFIN
VTUNE
CLK_MODEVSUP2b
GND1
V S U P 1
V D D
_ 1 8
V S U P 2 a
V D D
_ 2 8 b
C L K
D A T A 0
D A T A 1
V I N T
E N
G N D 2
P G N D
1 u
C 1 0 8
1
2
C112 1n
1nC114
C118 0.1u
C 11 9 1 u
C 1 0 9
1 u
1
2
C 1 0 3
1 u
1
2
C 1 0 5
1 u
1
2
+ 2 V 8 5
_ V R F
_ M T K
+2V8_VTCXO_MTK
SYSCLK
B S I 1
_ C L K
B S I 1
_ C S 1
B S I 1
_ D A T A
B S I 1
_ C S 0
+ 1 V 8
_ V I O
_ M T K
+ 1 V 8
_ V R F
_ M T K
MAIN_CLK_26MHz
TP1
MT6162(U101)
TP1 : C114(MAIN_CLK_26MHz)
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3. TROUBLE SHOOTING
- 29 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Check TP1(L104) at U102Check if there is any major difference referring
To Figure 3.1.1(b). Is any signal detected at thatpoint?
Check TP2 at U102Check if there is any major difference referringTo Figure 3.1.1(c). Is any signal detected at that
point?
Is any signal detected atthat point?
Check TP3(R103),TP4(R104),TP5(R105),at U102. Is any DC signal detected
at that points?
START
PAM is OK. See next page to check DPX
Replace U102
Check anything
Check anything
The Problem may be Logic part
Refer to Logic troubleshoot
Yes
Yes
Yes
Yes
No
No
No
No
3.1.1.3 Checking RF signal path(PAM)
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3. TROUBLE SHOOTING
- 30 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
BOT Side
SKY77589(U102)
TP2(B5): C115
TP2(B1): C163
TP2(B8): C117
TP2(B2): C113
TP3:R103TP4:R104
TP5:R105
TP1:L104
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3. TROUBLE SHOOTING
- 31 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
L113
DNI
C117 100p
C115 100p
L110
12n
L112
12n
C113 100pTRX_B2_G1900
TRX_B5_G850
TRX_B8_G900
TP2(B5)
TP2(B2)
TP2(B8)
C128
22u
C127
1n
U102
16
15
1 4
1 3
1 2
1 1
1 0
17
9
8
7
6
4
3
2 8
1
44
43
42
41
40
39
38
3 7
3 6
3 5
32
33
34
2 4
2 3
22
29
30
31
18
21
2 5
20
2 6
19
2 7
5
2GND2
GND5
G N D 1 1
TRX1
A N T
TRX2
G N D 1 0
TRX3
VRAMP
PGND3
PGND2
PGND1
TRX4
T R X 5
T R X 6
PGND6PGND5PGND4
P G N D 7
P G N D 8
P G N D 9
PGND10PGND11PGND12
PGND13PGND14PGND15PGND16
GND1
G N D 1 2
GND3GND4
GND6
GND7GND8
T X
_ H B
_ I N
TXEN
T X
_ L B
_ I N
B S 2
B S 1
V B A T T
V C C
GND9MODE
C126
6.8p
C111
0.5pL108
100n
L104 2.2n
1KR105
R104 1K
R103 1K
VBATT
ANT_SEL0
ANT_SEL1
ANT_SEL2
TRX_B1
TP3
TP2(B1)
TP4
TP5
TP1
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3. TROUBLE SHOOTING
- 32 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Figure 3.1.1 (b)
Figure 3.1.1 (c)
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3. TROUBLE SHOOTING
- 33 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Check TP1 at DPXCheck if there is any major difference referringTo Figure 3.1.1(b) Is any signal detected at that
point?
START
All WCDMA_B1/B2/B5/B8 Rx check is complete.
If the phone sill do not work ,replace main board
Check anything point
Replace FL103
Yes
Yes
Is any signal detected atthat point?
No
No
3.1.1.4 Checking RF signal path (FEM)
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3. TROUBLE SHOOTING
- 34 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
DPX (FL103) B5
DPX(FL105) B1
DPX(FL106) B8DPX(FL102) B2
TP1(B5): L121
TP1(B1): C160
TP1(B8): L132TP1(B2): L137
FL103
881.5MHz
75
8
4 92
3
16 ANT RX1
TX
GND1GND5GND2
RX2
GND3 GND4
L122
5.6nC150
18n
L121 6p
TRX_B5_G850
B5 TRx / G850 Rx
TP1(B5): L121
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3. TROUBLE SHOOTING
- 35 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
DNI
C163 L128
2.7n
C160 8.2p
FL105
2140MHz
75
8
4 92
3
16 ANT RX1
TX
GND1GND5GND2
RX2
GND3 GND4
TRX_B1
B1 TRx
TP1(B1): C160
L133
6.8n
L132 3.9n FL106
942.5MHz
75
8
4 92
3
16 ANT RX1
TX
GND1GND5GND2
RX2
GND3 GND4
DNI
C173
TRX_B8_G900
B8 TRx / G900 Rx
TP1(B8): L132
L117
DNI
C137 100p
FL102
75
8
4 92
3
16 ANT RX1
TX
GND1GND5GND2
RX2
GND3 GND4
C139
2.2n
TRX_B2_G1900
B2 TRx / G1900 Rx
TP1(B2): L137
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3. TROUBLE SHOOTING
- 36 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Figure 3.1.1 (b)
Figure 3.1.1 (b)
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3. TROUBLE SHOOTING
- 37 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.2 WCDMA Tx Part
3.2.1 WCDMA_ Tx B1/B2/B5/B8
* There are no Test Points on the IQ Data Line. So It is impossible to check the IQ Data Wave form.
WCDMA B1/B2/B5/B8 Tx TEST SETUP
- Test Channel : 10700 / 9800/ 44407 / 3013
- Sector Power : -55 dBm
1. Check DC Power Supply Circuit
START
2. Check MT6162 XO
4. Check DPX
5. Check PAM
Re download S/W & Cal
3. Check PA
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3. TROUBLE SHOOTING
- 38 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
MT6162(U101)
SKY77589 (U102)
DPX(FL106) B8
DPX(FL102) B2
DPXB1 (FL105)
DPX B5 (FL103)
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3. TROUBLE SHOOTING
- 39 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.2.1.1 Checking DC Power supply circuit
START
No
DC Power Supply Circuit is OK See Next page to Check XO Circuit
Yes
Check TP1(C109)+1V8_VRF_MTK is OK?
The Problem may be Logic partRefer to Logic troubleshoot
The Problem may be Logic partRefer to Logic troubleshoot
The Problem may be Logic part
Refer to Logic troubleshoot
No
No
Yes
Check TP2(C103)+2V85_VRF_MTK is OK?
Yes
Check TP3(C118)+2V8_VTCXO_MTK is OK?
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3. TROUBLE SHOOTING
- 40 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
MT6162(U101)
TP2: C103(+2V85_VRF_MTK )
TP1 : C109(+1V8_VRF_MTK )
TP3: C118(+2V8_VTCXO_MTK )
C
1 0 6
3 9 p
1
2
U101
1 B 1
C 2
D 1
E 2
F 1
G 2
H 1
J 2
K 1
L 2
A12
B11 A10
B9
A8B7
A6
B5
A4B3 A2
REFCLK1REFCLK2REFCLK3
VDDXO
NC4
XO2XO1/REFIN
VTUNE
CLK_MODEVSUP2b
GND1
V S U P 1
V D D
_ 1 8
V S U P 2 a
V D D
_ 2 8 b
C L K
D A T A 0
D A T A 1
V I N T
E N
G N D 2
P G N D
1 u
C 1 0 8
1
2
C112 1n
1nC114
C118 0.1u
C 11 9 1 u
C 1 0 9
1 u
1
2
C 1 0 3
1 u
1
2
C 1 0 5
1 u
1
2
+ 2 V 8 5
_ V R F
_ M T K
+2V8_VTCXO_MTK
SYSCLK
B S I 1
_ C L K
B S I 1
_ C S 1
B S I 1
_ D A T A
B S I 1
_ C S 0
+ 1 V 8
_ V I O
_ M T K
+ 1 V 8
_ V R F
_ M T K
MAIN_CLK_26MHz
TP3
TP2
TP1
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3. TROUBLE SHOOTING
- 41 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.2.1.2 Checking MT6162 XO circuit
START
YES
Replace Main B/D
NO
Check TP1(C114)Is it 26MHz?
XO circuit is Ok . See next pageto check RF signal path.
XO circuit is Ok . See next page
to check RF signal path.
YES
NO
Is it similar ?
Replace U801 and then
check TP1(C122)
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3. TROUBLE SHOOTING
- 42 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
C
1 0 6
3 9 p
1
2
U101
1 B 1
C 2
D 1
E 2
F 1
G 2
H 1
J 2
K 1
L 2
A12
B11 A10
B9
A8B7
A6
B5
A4B3 A2
REFCLK1REFCLK2REFCLK3
VDDXO
NC4
XO2XO1/REFIN
VTUNE
CLK_MODEVSUP2b
GND1
V S U P 1
V D D
_ 1 8
V S U P 2 a
V D D
_ 2 8 b
C L K
D A T A 0
D A T A 1
V I N T
E N
G N D 2
P G N D
1 u
C 1 0 8
1
2
C112 1n
1nC114
C118 0.1u
C 11 9 1 u
C 1 0 9
1 u
1
2
C 1 0 3
1 u
1
2
C 1 0 5
1 u
1
2
+ 2 V 8 5
_ V R F
_ M T K
+2V8_VTCXO_MTK
SYSCLK
B S I 1
_ C L K
B S I 1
_ C S 1
B S I 1
_ D A T A
B S I 1
_ C S 0
+ 1 V 8
_ V I O
_ M T K
+ 1 V 8
_ V R F
_ M T K
MAIN_CLK_26MHz
TP1
MT6162(U101)
TP1 : C114(MAIN_CLK_26MHz)
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3. TROUBLE SHOOTING
- 43 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
START
No
No
No
Replace U103/U104
Yes
Yes
Yes
Check TP1 at U103/U104Check if there is any major difference referring
To Figure 4.2.1.4 Is it similar ?
Check TP2 at U103/U104Check if there is any major difference referring
To Figure 4.2.1.4 Is it similar ?
Check TP3 at U103/U104Whether it is higher than 1.5V
Check anything point
PAM circuits OK See next page
The Problem may be Logic partRefer to Logic troubleshoot
3.2.1.3 Checking B1 / B2 / B5 / B8 TX PA
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3. TROUBLE SHOOTING
- 44 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
PAM(U103)B1/B5
PAM(U104)B2/B8
TP2(B5): L124
TP3(B2/B8): C154
TP3(B1/B5): C135TP2(B1): C166
TP1(B1): L136
TP2(B8): L134
TP2(B2): C140
TP1(B2): L135
TP1(B5): C152
TP1(B8): C161
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3. TROUBLE SHOOTING
- 45 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
C181
DNI
L129
8.2n
2
1
C164 33p
1 2
C166
8.2n
2
1
DNI
C180
C 1 3 3
1 0 0 n
L123
DNI
U103
1 5
1314
10 56
412
7
3
8
11
1
9
2RFIN_LB
GND1
VEN_LB
RFOUT_HB
CPL_OUT
VBATT
VEN_HB
VCCRFIN_HB
VMODENCCPL_IN
RFOUT_LBGND2
P G N D
C 15 1 1. 8n
C146
100p
2 . 2
u
C 1 3 2
100p
C145 C144
100p
VBATT
+3V4_VWPAM_MTK
L124
1p
R 1 1 1
4 9
. 9
C135
0.1u
L 13 6 2 .2 n
3GTX_B5
PA_ON_B1_ENPA_R0
PA_ON_B5_EN
3GTX_B1
TP3(B1/B5)TP2(B5)_RF out
TP2(B1)_RF out
TP1(B5)_RF IN
TP1(B1)_RF IN
DNI
C179
L135 1.5n
C141
5.6n
L134 15p
C140 12p
L118
0.5p
C178
DNI
C 1 5 8
1 0 0 n
C169
100p
C167
100p
C168
100p
VBATT
+3V4_VWPAM_MTK
U104
1 5
1314
10 56
412
7
3
8
11
1
9
2RFIN_LB
GND1
VEN_LB
RFOUT_HB
CPL_OUT
VBATT
VEN_HB
VCCRFIN_HB
VMODENCCPL_IN
RFOUT_LBGND2
P G N D
C174
22n
C175
18n
C156
2.2u
27
R108
27
R109
36
R110
22p
C154
1
2
C134
2.2u1
2
3GTX_B2
3GTX_B8PA_ON_B8_EN
PA_ON_B2_ENPA_R0
PDET
TP3(B2/B8)
TP2(B8)_RF out
TP2(B2)_RF out
TP1(B8)_RF IN
TP1(B2)_RF IN
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3. TROUBLE SHOOTING
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LGE Internal Use Only
Figure 3.2.1.4
TP1_RF IN
TP2_RF out
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3. TROUBLE SHOOTING
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LGE Internal Use Only
3.2.1.4 Checking RF signal path (DPX)
Figure 3.1.1 (b)
Check TP1 at DPXCheck if there is any major difference referring
To Figure 3.1.1(b) Is any signal detected at thatpoint?
START
All WCDMA_B1/B2/B5/B8 Rx check is complete.
If the phone sill do not work ,replace main board
Check anything point
Replace FL/102/103/105/106
Yes
Yes
Is any signal detected atthat point?
No
No
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3. TROUBLE SHOOTING
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LGE Internal Use Only
TOP Side
DPX (FL103) B5
DPX(FL105) B1
DPX(FL106) B8DPX(FL102) B2
TP1(B5): L121
TP1(B1): C160
TP1(B8): L132TP1(B2): L137
FL103
881.5MHz
75
8
4 92
3
16 ANT RX1
TX
GND1GND5GND2
RX2
GND3 GND4
L122
5.6nC150
18n
L121 6p
TRX_B5_G850
B5 TRx / G850 Rx
TP1(B5): L121
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3. TROUBLE SHOOTING
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LGE Internal Use Only
DNI
C163 L128
2.7n
C160 8.2p
FL105
2140MHz
75
8
4 92
3
16 ANT RX1
TX
GND1GND5GND2
RX2
GND3 GND4
TRX_B1
B1 TRx
TP1(B1): C160
L133
6.8n
L132 3.9n FL106
942.5MHz
75
8
4 92
3
16 ANT RX1
TX
GND1GND5GND2
RX2
GND3 GND4
DNI
C173
TRX_B8_G900
B8 TRx / G900 Rx
TP1(B8): L132
L117
DNI
C137 100p
FL102
75
8
4 92
3
16 ANT RX1
TX
GND1GND5GND2
RX2
GND3 GND4
C139
2.2n
TRX_B2_G1900
B2 TRx / G1900 Rx
TP1(B2): L137
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3. TROUBLE SHOOTING
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LGE Internal Use Only
3.2.1.5 Checking RF signal path (PAM)
Check TP1(L104) at U102Check if there is any major difference referring
To Figure 3.1.1(b). Is any signal detected at thatpoint?
Check TP2 at U102Check if there is any major difference referringTo Figure 3.1.1(b). Is any signal detected at that
point?
Is any signal detected atthat point?
Check TP3(R103),TP4(R104),TP5(R105),at U102. Is any DC signal detected
at that points?
START
PAM is OK. See next page to check DPX
Replace U102
Check anything
Check anything
The Problem may be Logic part
Refer to Logic troubleshoot
Yes
Yes
Yes
Yes
No
No
No
No
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3. TROUBLE SHOOTING
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LGE Internal Use Only
TOP Side
BOT Side
SKY77589(U102)
TP2(B5): C115
TP2(B1): C163
TP2(B8): C117
TP2(B2): C113
TP3:R103TP4:R104
TP5:R105
TP1:L104
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3. TROUBLE SHOOTING
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LGE Internal Use Only
L113
DNI
C117 100p
C115 100p
L110
12n
L112
12n
C113 100pTRX_B2_G1900
TRX_B5_G850
TRX_B8_G900
TP2(B5)
TP2(B2)
TP2(B8)
C128
22u
C127
1n
U102
16
15
1 4
1 3
1 2
1 1
1 0
17
9
8
7
6
4
3
2 8
1
44
43
42
41
40
39
38
3 7
3 6
3 5
32
33
34
2 4
2 3
22
29
30
31
18
21
2 5
20
2 6
19
2 7
5
2GND2
GND5
G N D 1 1
TRX1
A N T
TRX2
G N D 1 0
TRX3
VRAMP
PGND3
PGND2
PGND1
TRX4
T R X 5
T R X 6
PGND6PGND5PGND4
P G N D 7
P G N D 8
P G N D 9
PGND10PGND11PGND12
PGND13PGND14PGND15PGND16
GND1
G N D 1 2
GND3GND4
GND6
GND7GND8
T X
_ H B
_ I N
TXEN
T X
_ L B
_ I N
B S 2
B S 1
V B A T T
V C C
GND9MODE
C126
6.8p
C111
0.5pL108
100n
L104 2.2n
1KR105
R104 1K
R103 1K
VBATT
ANT_SEL0
ANT_SEL1
ANT_SEL2
TRX_B1
TP3
TP2(B1)
TP4
TP5
TP1
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LGE Internal Use Only
Figure 3.1.1 (b)
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3. TROUBLE SHOOTING
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LGE Internal Use Only
3.3 GSM Rx Part
3.3.1 GSM850/900/DCS/PCS Rx
* There are no Test Points on the IQ Data Line. So It is impossible to check the IQ Data Wave form
Rx TEST SETUP
- BCH :GSM850 / EGSM / DCS / PCS for GSM900- TCH: GSM850 / EGSM / DCS / PCS for GSM900
- Channel : 190 / 37 / 698 / 661 for GSM 900
- Sector Power : -30 dBm / -33dBm
1. Check DC Power Supply circuit
START
2. Check MT6162 XO
Re download S/W & Cal
3. Check RF Signal path
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3. TROUBLE SHOOTING
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LGE Internal Use Only
TOP Side
MT6162(U101)
SKY77589 (U102)
DPX (FL106)GSM900
DPX (FL102)GSM1900
SAW (FL101)GSM1800
DPX GSM850 (FL103)
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3. TROUBLE SHOOTING
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LGE Internal Use Only
3.3.1.1 Checking DC Power supply circuit
START
No
DC Power Supply Circuit is OK See Next page to Check XO Circuit
Yes
Check TP1(C109)+1V8_VRF_MTK is OK?
The Problem may be Logic partRefer to Logic troubleshoot
The Problem may be Logic partRefer to Logic troubleshoot
The Problem may be Logic part
Refer to Logic troubleshoot
No
No
Yes
Check TP2(C103)+2V85_VRF_MTK is OK?
Yes
Check TP3(C118)+2V8_VTCXO_MTK is OK?
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3. TROUBLE SHOOTING
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LGE Internal Use Only
TOP Side
MT6162(U101)
TP2: C103(+2V85_VRF_MTK )
TP1 : C109(+1V8_VRF_MTK )
TP3: C118(+2V8_VTCXO_MTK )
C
1 0 6
3 9 p
1
2
U101
1 B 1
C 2
D 1
E 2
F 1
G 2
H 1
J 2
K 1
L 2
A12
B11 A10
B9
A8B7
A6
B5
A4B3 A2
REFCLK1REFCLK2REFCLK3
VDDXO
NC4
XO2XO1/REFIN
VTUNE
CLK_MODEVSUP2b
GND1
V S U P 1
V D D
_ 1 8
V S U P 2 a
V D D
_ 2 8 b
C L K
D A T A 0
D A T A 1
V I N T
E N
G N D 2
P G N D
1 u
C 1 0 8
1
2
C112 1n
1nC114
C118 0.1u
C 11 9 1 u
C 1 0 9
1 u
1
2
C 1 0 3
1 u
1
2
C 1 0 5
1 u
1
2
+ 2 V 8 5
_ V R F
_ M T K
+2V8_VTCXO_MTK
SYSCLK
B S I 1
_ C L K
B S I 1
_ C S 1
B S I 1
_ D A T A
B S I 1
_ C S 0
+ 1 V 8
_ V I O
_ M T K
+ 1 V 8
_ V R F
_ M T K
MAIN_CLK_26MHz
TP3
TP2
TP1
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LGE Internal Use Only
3.3.1.2 Checking MT6162 XO circuit
START
YES
Replace Main B/D
NO
Check TP1(C114)Is it 26MHz?
XO circuit is Ok . See next pageto check RF signal path.
XO circuit is Ok . See next page
to check RF signal path.
YES
NO
Is it similar ?
Replace U801 and then
check TP1(C122)
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3. TROUBLE SHOOTING
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LGE Internal Use Only
TOP Side
C
1 0 6
3 9 p
1
2
U101
1 B 1
C 2
D 1
E 2
F 1
G 2
H 1
J 2
K 1
L 2
A12
B11 A10
B9
A8B7
A6
B5
A4B3 A2
REFCLK1REFCLK2REFCLK3
VDDXO
NC4
XO2XO1/REFIN
VTUNE
CLK_MODEVSUP2b
GND1
V S U P 1
V D D
_ 1 8
V S U P 2 a
V D D
_ 2 8 b
C L K
D A T A 0
D A T A 1
V I N T
E N
G N D 2
P G N D
1 u
C 1 0 8
1
2
C112 1n
1nC114
C118 0.1u
C 11 9 1 u
C 1 0 9
1 u
1
2
C 1 0 3
1 u
1
2
C 1 0 5
1 u
1
2
+ 2 V 8 5
_ V R F
_ M T K
+2V8_VTCXO_MTK
SYSCLK
B S I 1
_ C L K
B S I 1
_ C S 1
B S I 1
_ D A T A
B S I 1
_ C S 0
+ 1 V 8
_ V I O
_ M T K
+ 1 V 8
_ V R F
_ M T K
MAIN_CLK_26MHz
TP1
MT6162(U101)
TP1 : C114(MAIN_CLK_26MHz)
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3. TROUBLE SHOOTING
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LGE Internal Use Only
3.3.1.3 Checking RF signal path (PAM)
Check TP1(L104) at U102Check if there is any major difference referring.
Is any signal detected at that point?
Check TP2 at U102Check if there is any major difference referring.
Is any signal detected at that point?
Is any signal detected atthat point?
Check TP3(R103),TP4(R104),TP5(R105),at U102. Is any DC signal detected
at that points?
START
PAM is OK. See next page to check DPX
Replace U102
Check anything
Check anything
The Problem may be Logic part
Refer to Logic troubleshoot
Yes
Yes
Yes
Yes
No
No
No
No
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3. TROUBLE SHOOTING
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LGE Internal Use Only
TOP Side
BOT Side
TP1: L104
SKY77589(U102)
TP2(G850): C115TP2(G900): C117
TP2(G1800): L103
TP2(G1900): C113
TP3:R103TP4:R104
TP5:R105
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3. TROUBLE SHOOTING
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LGE Internal Use Only
C128
22u
C127
1n
U102
16
15
1
4
1
3
1
2
1
1
1
0
17
9
8
7
6
4
3
2 8
1
44
43
42
41
40
39
38
3
7
3
6
3
5
32
33
34
2 4
2 3
22
29
30
31
18
21
2 5
20
2 6
19
2 7
5
2GND2
GND5
G N D 1 1
TRX1
A N T
TRX2
G N D 1 0
TRX3
VRAMP
PGND3
PGND2
PGND1
TRX4
T R X 5
T R X 6
PGND6PGND5PGND4
P G N D 7
P G N D 8
P G N D 9
PGND10PGND11PGND12
PGND13PGND14PGND15PGND16
GND1
G N D 1 2
GND3GND4
GND6GND7GND8
T X
_ H B
_ I N
TXEN
T X
_ L B
_ I N
B S 2
B S 1
V B A T T
V C C
GND9MODE
C126
6.8p
C111
0.5pL108
100n
L104 2.2n
1KR105
R104 1K
R103 1K
VBATT
ANT_SEL0
ANT_SEL1
ANT_SEL2
TRX_B1
TP3
TP4
TP5
TP1
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3. TROUBLE SHOOTING
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LGE Internal Use Only
L113
DNI
C117 100p
C115 100p
L110
12n
L112
12n
C113 100pTRX_B2_G1900
TRX_B5_G850
TRX_B8_G900
TP2(G850)
TP2(G1900)
TP2(G900)
L102
8.2n
1.2nL1061842.5MHz
FL101
45
1
32
G1 O1IN
G2 O2
L101 1.2n
L105
5.6n
L103 10p
RX_G1800_INP
RX_G1800_INN
TP2(G1800)
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3. TROUBLE SHOOTING
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LGE Internal Use Only
3.3.1.4 Checking RF Flow(SAW lter)
Check TP1(L101) for 1800 band at FL101Check if there is any major difference referring
To Figure 3.1.1(a) Is any signal detected atthat point?
START
SAW lter is OK. Replace main B/D.
Replace FL101
Check anything point
Yes YesTo Figure 3.1.1(b) Is any signal detected at
that point
No
No
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3. TROUBLE SHOOTING
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LGE Internal Use Only
TOP Side
L102
8.2n
1.2nL1061842.5MHz
FL101
45
1
32G1 O1
ING2 O2
L101 1.2n
L105
5.6n
L103 10p
RX_G1800_INP
RX_G1800_INN
TP1
TP1: L101
SAW(FL101)
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3. TROUBLE SHOOTING
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LGE Internal Use Only
Figure 3.1.1 (a)
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3. TROUBLE SHOOTING
- 67 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.4 GSM Tx Part Troubleshooting
3.4.1 GSM850/900/DCS/PCS Tx
TOP Side
MT6162(U101)
SKY77589 (U102)
DPX (FL106)B8
DPX (FL102)B2
DPX (FL103)B5
DPX (FL105)B1
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3. TROUBLE SHOOTING
- 68 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.4.1.1 Checking DC Power supply circuit
START
No
DC Power Supply Circuit is OK See Next page to Check XO Circuit
Yes
Check TP1(C109)+1V8_VRF_MTK is OK?
The Problem may be Logic partRefer to Logic troubleshoot
The Problem may be Logic partRefer to Logic troubleshoot
The Problem may be Logic part
Refer to Logic troubleshoot
No
No
Yes
Check TP2(C103)+2V85_VRF_MTK is OK?
Yes
Check TP3(C118)+2V8_VTCXO_MTK is OK?
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3. TROUBLE SHOOTING
- 69 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
MT6162(U101)
TP2: C103(+2V85_VRF_MTK )
TP1 : C109(+1V8_VRF_MTK )
TP3: C118(+2V8_VTCXO_MTK )
C
1 0 6
3 9 p
1
2
U101
1 B 1
C 2
D 1
E 2
F 1
G 2
H 1
J 2
K 1
L 2
A12
B11 A10
B9
A8B7
A6
B5
A4B3 A2
REFCLK1REFCLK2REFCLK3
VDDXO
NC4
XO2XO1/REFIN
VTUNE
CLK_MODEVSUP2b
GND1
V S U P 1
V D D
_ 1 8
V S U P 2 a
V D D
_ 2 8 b
C L K
D A T A 0
D A T A 1
V I N T
E N
G N D 2
P G N D
1 u
C 1 0 8
1
2
C112 1n
1nC114
C118 0.1u
C 11 9 1 u
C 1 0 9
1 u
1
2
C 1 0 3
1 u
1
2
C 1 0 5
1 u
1
2
+ 2 V 8 5
_ V R F
_ M T K
+2V8_VTCXO_MTK
SYSCLK
B S I 1
_ C L K
B S I 1
_ C S 1
B S I 1
_ D A T A
B S I 1
_ C S 0
+ 1 V 8
_ V I O
_ M T K
+ 1 V 8
_ V R F
_ M T K
MAIN_CLK_26MHz
TP3
TP2
TP1
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3. TROUBLE SHOOTING
- 70 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.4.1.2 Checking MT6162 XO circuit
START
YES
Replace Main B/D
NO
Check TP1(C114)
Is it 26MHz?
XO circuit is Ok . See next page
to check RF signal path.
XO circuit is Ok . See next page
to check RF signal path.
YES
NO
Is it similar ?
Replace U801 and then
check TP1(C122)
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3. TROUBLE SHOOTING
- 71 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP Side
C
1 0 6
3 9 p
1
2
U101
1 B 1
C 2
D 1
E 2
F 1
G 2
H 1
J 2
K 1
L 2
A12
B11 A10
B9
A8B7
A6
B5
A4B3 A2
REFCLK1REFCLK2REFCLK3
VDDXO
NC4
XO2XO1/REFIN
VTUNE
CLK_MODEVSUP2b
GND1
V S U P 1
V D D
_ 1 8
V S U P 2 a
V D D
_ 2 8 b
C L K
D A T A 0
D A T A 1
V I N T
E N
G N D 2
P G N D
1 u
C 1 0 8
1
2
C112 1n
1nC114
C118 0.1u
C 11 9 1 u
C 1 0 9
1 u
1
2
C 1 0 3
1 u
1
2
C 1 0 5
1 u
1
2
+ 2 V 8 5
_ V R F
_ M T K
+2V8_VTCXO_MTK
SYSCLK
B S I 1
_ C L K
B S I 1
_ C S 1
B S I 1
_ D A T A
B S I 1
_ C S 0
+ 1 V 8
_ V I O
_ M T K
+ 1 V 8
_ V R F
_ M T K
MAIN_CLK_26MHz
TP1
MT6162(U101)
TP1 : C114(MAIN_CLK_26MHz)
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3. TROUBLE SHOOTING
- 72 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.4.1.3 Checking RF signal path (PAM)
START
No
No
No
Replace U102
Yes
Yes
Yes
Check TP1(L104) at U102Check if there is any major difference referring
To Figure 4.2.1.4 Is it similar ?
Check TP2 at U102Check if there is any major difference referring
To Figure 4.2.1.4 Is it similar ?
Check TP3(R103),TP4(R104),TP5(R105),at U102. Is any DC signal detected
at that points?
Check anything point
PAM circuits OK See next page.
The Problem may be Logic partRefer to Logic troubleshoot
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LGE Internal Use Only
TOP Side
BOT Side
TP1: L104
PAM(U102)
TP2(850/900): C176
TP2 (DCS/PCS): C177
TP3:R103
TP4:R104
TP5:R105
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LGE Internal Use Only
100pC177
100pC176
C128
22u
C127
1n
U102
1615
1 4
1 3
1 2
1 1
1 0
17
9
876
43
2 8
1
44434241
403938
3 7
3 6
3 5
323334
2 4
2 3
22
293031
18
21
2 5
20
2 6
19
2 7
5
2GND2
GND5
G N D 1 1
TRX1
A N T
TRX2
G N D 1 0
TRX3
VRAMP
PGND3PGND2PGND1
TRX4
T R X 5
T R X 6
PGND6PGND5PGND4
P G N D 7
P G N D 8
P G N D 9
PGND10PGND11PGND12
PGND13PGND14PGND15PGND16
GND1
G N D 1 2
GND3GND4
GND6GND7GND8
T X
_ H B
_ I N
TXEN
T X
_ L B
_ I N
B S 2
B S 1
V B A T T
V C C
GND9MODE
C126
6.8p
C111
0.5pL108
100n
L104 2.2n
100pC122
DNI
C125
DNI
C130
1KR105
R104 1K
R103 1K
VBATT
100pC129
ANT_SEL0
ANT_SEL1
ANT_SEL2
TX_DCS_PCS
TX_GSM850_GSM900
TRX_B1
TP2(DCS/PCS)
TP2(850/900)
TP1
TP3
TP4
TP5
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LGE Internal Use Only
3.5 Power
The main power source of D686 is provided by 1 chip which is MT6329Power ON sequence of D686 is
VBAT
DDLO
VRTC
UVLO
PWRKEY
PWRBB
PWRON
VCORE
VPROC
VIO18
VIO28/VM12_INTVA1/VA2
VM12_1/VM12_2
VUSB/VTCXO
VMC/VMCH
RESETB
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LGE Internal Use Only
START
END
Check Battery connector (CN601)
Press PWR Key TP1: R706 high to low?
Battery voltage
higher than 3.6V?
Check MT6329 Core (L301)Voltage level?
Check MT6329 AP (L302)Voltage level?
Check MT6329 IO (L303)Voltage level?
Check MT6329 RTC CLOCK
Check POWER_KEY FPCB
Change or charging the Battery
L301 (Check MT6329)
L302(Check R322)
L303(Check PM8058)
R322(Check MT6577)
Change MT6329And Return to Start
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
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LGE Internal Use Only
R706 1K21
ANT701MBV625620011
FEED
Z D 7 0 1
2
1
MBV62562001 ANT7021
FEED
PWR_ON_SW_N
POWER & Lock KEY
PWR KEY(R706) TP1
1K
R61821
R620
20m
1u
C62047uC621
1 0 0 K
R 6 1 7
2
1
R 6 2 2
4 . 7
K
R623
100
47p
C618
6.8p
C619VA601
ZD602
CN601
6
4
3
2
15G1
G2
BATT_ID_PULLUP
VBATTVTREF
BATT_TEMP_ADC
BATT_ID
FGN_IC2mmFor MTK Fuel Gauge
1.2V
BATTERY CONNECTOR(CN601)
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LGE Internal Use Only
D12
H12
C12
K13J13
A13
G13G12
E10
D14D13C14
B12
E12F13F12
VCORE_1VCORE_2VCORE_3
VCORE_FB
VPROC_1
VPROC_2VPROC_3
VPROC_FB
VIO18_1VIO18_2
VIO18_FB
VPA_1
VPA_2
VPA_FB
VRF18
VRF18_FB
2.2uL302
4.7uC339 1 2
4.7uL304
C336 4.7u 1 2
C333 4.7u 1 2
4.7uC332
1 2
L303 2.2u
C334 10n
D3011 2
L305 2.2u
21
C337
2.2u1
2
L301 2.2u
+3V4_VWPAM_MTK
+1V8_VIO_MTK
+1V2_CORE_MTK
+1V35_PROC_MTK
VBATT
+1V8_VRF_MTK
VAPROC_FB
Core DC/DC INDUCTOR(L301)
AP DC/DC INDUCTOR(L302)
IO DC/DC INDUCTOR(L303)
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LGE Internal Use Only
Core DC/DC INDUCTOR(L301)
IO DC/DC INDUCTOR(L303)
BATTERY CONNECTOR(CN601)
AP DC/DC INDUCTOR(L302)
TOP Side
BOT Side
PWR KEY Clip
PWR KEY(R706) TP1
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3.6 Charging
D686 uses Switching Chaging IC for charging control. The Chaging IC(MAX8971EWP) circuit includes the charging pass transistor
detects the VDD and VBAT voltages, and its control driver. The Chaging IC(MAX8971EWP) maximum charging current is set around
1.2A.
Charging Procedure
- Supply the VCHG use a TA or u-USB cable
- The Chaging IC(MAX8971EWP) control the charging current
- Charging current ows into the main battery
Troubleshooting Check Point
- Connection of the TA or u-USB cable
- Main battery
U606
1 n
C 6 1 7
0 . 1 u
C 6 1 4
L602
1u
V B A T T
R 6 2 1
4 7 m
V C H G
_ O V P
_ I N
1 u
C 6 2 3
1 u
C 6 2 4
+ 1 V 8
_ V I O
_ M T K
C 6 1 6
1 u
C 6 2 5
4 . 7
u
2 . 2
u
C 6 1 5
2 . 2
u
C 6 2 6
4 . 7
K
R 6 1 9
V C H G
_ L D O
_ 4 V 9
U606
C5
D2
D3
D1
A5
B5
A1
C1
B1
A4 A3
A2
D5
D4
C4
C3
C2
B2
B3
B4 I2CIN
IRQB
LX2
BST
GND
SCL
SFO
AVL
PG2VICHG
CS
LX1
BYP
PG1
THM
BAT
DC1
PVL
DC2
SDA
C 6 2 2
1 u
1
2
I2C_SENSOR_SDAI2C_SENSOR_SCL
CHARGER_IRQ_B
10V
U606(Charger IC)
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LGE Internal Use Only
START
Check the Connectionof uUSB and battery
Change the Charger IC ( U606 )
Is the uUSB Cable voltage 4.9V (or 5.0V)
Yes
Connection OK?
Connection OK?
Is it charging properlyAfter turning on?
Yes
Yes
Yes
Change I/O connector
No
Change TA(or uUSB Cable)
END
END
No
No
No
Change the Main PCB
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LGE Internal Use Only
3.7 USB
START
Check the Connectionof uUSB
Main PCB & Sub FPCB Connection OK?
Yes
Connection OK?
Is the signal ok for USB+ & - ?
Yes
Yes
Change I/O connector( SUB FPCB CN10000)
No
Check Connector( SUB FPCB CN10001)
Change Sub FPCB
No
No
Change the Main PCB
END
CN10000
11
10
9
5
4
3
2
1
8
7
6
GND
CN1001
1615
1714
1813
1912
2011
2110
229
238
247
256
265
274
283
292
301
VCHG_OVP_IN
LED_RLED_GLED_B
MIC_N
USB_IDUSB_DNUSB_DP
SPK_LP
VMIC
MIC_P
KROW1_FKCOL1_F
SPK_LN
SPK_RNSPK_RP
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LGE Internal Use Only
MIC1MIC1
MIC2MIC2
MT6575
(AP)
MT6620(Connectivity)
HP L/R
HS
Headphone
AMP
EAR_L/R
Dual SPK
RCV
3.5 pi
FM RADIO
SPK Boost AMP
SPK Boost AMP
3.8 Audio
3.8.1 Overview
Audio Block Diagram
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LGE Internal Use Only
3.8.2 Speaker
It’s trouble shooting guide for no sound case.
Speaker control signals are generate by MT6577(U201), TPA2015(U501,U502)If low level volume or breaking the sound,change speaker module
START
Check the speaker.And reconnect Speaker module
Change Main Board
Change Speaker Module?
Hear the sound to the Speaker?
Yes
Yes
YesCheck Lower FPCB and Main PCB.(C508,C507,C506,C505,
FB504,FB502,FB501,FB503,L1001~L1004)Speaker Sound OK?
No
No
No
END
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LGE Internal Use Only
C507,508
C506,505
U502
U501
FB502,504
FB501,503
Speaker Module
L1001~L1004
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LGE Internal Use Only
33nL1002
21
L1004 33n
21
33nL1003
21
L1001 33n
21
ANT100021 FEED
ANT100001
FEED
ANT100031
FEED
ANT100011
FEEDSPK_LP
SPK_LN
SPK_RN
SPK_RP
SPEAKER1 SPEAKER2L1001,L1002 L1003,L1004
0 C511
VBATT
C504
10u
DNIC512
C503
10u
C516
33p
C515
33p
60FB504
FB502 60
L502
2.2u21
U502
D1
D2
D4
D3
B4
A4
B2B3
A3 A2 A1
C4
C3
B1
C1
C2
G N D 2
OUT-
OUT+
END
G N D 3
P V D D
P V O U T
S W
AGCGAIN
G N D 1
V B A T
IN-
ENB
IN+
G N D 4
C507 47n
47nC508
HPH_LSPK_LP
SPK_LN
SPK_AMP_L_EN
C507,508FB502,504
VBATT2.2u
L501
21
C502
10u
C509 0
10u
C501
60FB501
FB503 60
33p
C513
33p
C514
U501
D1
D2
D4
D3
B4
A4
B2B3
A3 A2 A1
C4
C3
B1
C1
C2
G N D 2
OUT-
OUT+
END
G N D 3
P V D D
P V O U T
S W
AGCGAIN
G N D 1
V B A T
IN-
ENB
IN+
G N
D 4
47nC506
C505 47n
C 51 0 D NI
HPH_R
SPK_RN
SPK_RP
SPK_AMP_R_EN
C506,505
FB501,503
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LGE Internal Use Only
3.8.3 Receiver
Receiver control signals are generate by MT6575(U201), Receiver(CN501)
START
Check the Receiver soundandcheck receiver wire.
Change Main Board
Receiver Contact is OK?
Hear the sound to the Receiver?Yes
Yes
Yes
Yes
Change Receiver Module.Can you hear a sound?
Check main board part FB505,FB506
No
No
No
No
END
Re-assemble the Receiver
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LGE Internal Use Only
In case of No Receiver sound, not only Receiver fault but Mic fault.
You must check rst voice recording test. After voice recording you can hear a recording sound, receiver path or parts is something
wrong.
TOP Side
Check Contact Status
FB505, FB506
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LGE Internal Use Only
3.8.4 Main Mic
Main Mic located on Lower FPCB.
It’s operating voice call(except speakerphone), voice recording, camcorder recording
START
Check the Mic signal by test modeor Voice recording.
Change Main Board
Reconnect or change FPCB connector.Voice signal OK?
Check Mic hole & rubber tomake the voice signal?
Yes
Yes
Yes
Yes
Check parts about Mic BiasMic works well?
Change MIC10000 or MT6577(U201).Mic works well?
No
No
No
No
END
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LGE Internal Use Only
Check Main Mic hole.
Check C250, C252 and VMIV voltage level (C251)
TOP
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LGE Internal Use Only
3.8.5 2nd Mic2nd Mic located on Main PCB Top Side.
It’s operating handset voice call and speakerphone.
START
Check the Mic signal by test mode(2nd loop back or Camcorder test)
Change Main Board
Check parts about Mic BiasMic works well?
Check Mic hole & rubber tomake the voice signal?
Yes
Yes
Yes
Yes
Change Mic(MIC501)
Mic works well?
Change MT6577(U201).Mic works well?
No
No
No
No
END
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LGE Internal Use Only
2nd Mic Hole located on Main PCB Top Side..It’s operating handset voice call and speakerphoneIn case of Test menu, loopback 2nd Mic test and Camcorder recording.
2nd Mic Hole
TOP
Check C255, C256, C535 and VMIC voltage level (C251)
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LGE Internal Use Only
3.8.6 Ear-Mic Trouble Shooting
Ear MIC control signals are generate by MT6575(U200)
Case A. Disable detected headset insert.
START
Didn’t display headset icon and play sound viaspeaker although headset insert
Change Main Board
Check the left signal and detection line shortwhen headset inserted?
Change Ear Jack Connector.Sound play via headset?
Yes
Yes
Yes
Change MT6577(U201).Mic works well?
No
No
No
END
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LGE Internal Use Only
Case A. Disable detected headset insert.
Ear JackConnector
TOP
Check Part about earjack detect (FB508, R507, R516)
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LGE Internal Use Only
Case B. No Sound from Headset
START
Didn’t play sound via headsetalthough headset insert
Change Main Board
Check TPA6136(U503) and peripheralcircuits Works well?
Change Ear Jack Connector.Sound play via headset?
Yes
Yes
Yes
Check MT6577(U201). Works well?
No
No
No
END
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LGE Internal Use Only
Case B. No Sound from Headset
Check the input power +VBATT and Gain Parameter . (C517, R505)In case of you can’t heard anything, check C518~521
Can heard sound but sound is abnormal, check C533,C534
TOP
U503
0
R502
2
1
C524
1u
C520 1u
1uC518
1uC521
C519 1u
2.2u
C517
VBATT
U503D4 D3
D2
D1
C4
B4
B3 A4
A2
B2
C1
A1
B1
C2
A3
C3
S G N D
OUTL
H P V S
S
GND
E N
CPN
CPP
V D D
INL-
HPVDD
INL+
INR+
HI-Z
GAIN
OUTRINR-
+1V8_VIO_MTK
1 0 0 K
R 5 0 5
2
R 5 0 3
D N I
2
2.2u
C523C522
1u
HPH_R
HPH_L
Headset_AMP_EN
H P
_ A M P
_ S G N D
EAR_REAR_L
U503
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LGE Internal Use Only
3.9 6 AXIS Sensor
The 6 AXIS sensor is calibrated by the gyro sensor data using SW algorithm. Therefore Gyro sensor error makes the compass sensor malfunction.
R608
100K2 1
U6042
5
1 4
1
1 3
10
11
6
3 9
8
1 2
4
7
G N D 2DRDY
C S B
VDD
GND3INT2
G N D 1
SCK
VDDIO
P S
SDO S D I
I N T 3
INT1
+1V8_VIO_MTK+3V0_SENSORS_MTK
100n
C610
1
2
C609
100n1
2
I2C_COMMON_SCL
I2C_COMMON_SDA
3AXIS_INT
COMPASS_DRDY
6 AXIS SENSOR
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LGE Internal Use Only
START
Check the 6 XIS sensor function
Change the main board
END
END
END
END
Change the 6 AXIS Sensor IC(U604)
6XIS -NG?
Function is OK?Yes
Yes
Yes
Yes
6 AXIS Sensor function is OK?
6 AXIS Sensor function is OK?
No
No
No
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LGE Internal Use Only
BOT
U604
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LGE Internal Use Only
3.10 Proximity SensorProximity Sensor is worked as below:Send Key click -> Phone number click -> Call connected -> Object moved at the sensor -> Control the screen’s on/offoperation automatically
START
Send Key click & Phone number click& Call connected
Object moved at the Proximity sensor
Change the main board
END
END
END
Check +3V_PROX_AMBIENT(TP1)& I2C_SENSOR_SDA & SCL
& PROX__INT
LCD off?Yes
Yes
Yes
Output work well?
Function is OK?
No
No
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LGE Internal Use Only
TOP
Sensor Power: TP1(C607)
+3V0_SENSORS_MTK
R628
021
0
R62721
U603
9
3
54
6
72
81SDA VDD
INT SCL
GND
LEDK LEDA
LDR
NC
1 0 K
R 6 0 3
2
1
C607
2.2u1
2
+1V8_VIO_MTK
I2C_SENSOR_SDA
I2C_SENSOR_SCLPROX_INT
Sensor Power: TP1(C607)
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LGE Internal Use Only
3.11 Touch Sensor
START
Reconnect Touch Module CN406
Change Main Board
Check Power+1V8_VIO_MTKTP1) / +3V0_TOUCH_MTK (TP2)
Power is OK?
Touch Woks OK ?
Yes
Yes
Yes
Yes
Check I2C Line & Signal Line (TP3 &TP4)Touch Works OK?
Change Touch ModuleTouch Works OK?
No
No
No
No
END
Change MT6329(U804)
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3. TROUBLE SHOOTING
- 103 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
BOT
V A 4 0 4
2
1
V A 4 0 3
2
1
R412
22K
R 4 1 0
1 0 K
+1V8_VIO_MTK
+3V0_TOUCH_MTK
V A 4 0 6
CN406
65
74
83
92
101
4 . 7
K
R 4 0 8
V A 4 0 5
+1V8_VIO_MTK
C434
1u
V A 4 0 7
2
1
R 4 1 1
0
I2C_SENSOR_SDA
I2C_SENSOR_SCL Touch_Reset
TOUCH_ID
TOUCH_INT
TOUCH
TP3(VA403)TP4(VA404)
+1V8_VIO_MTK :TP1 (VA405)
+3V0_TOUCH_MTK : TP2 (VA407)
+3V0_TOUCH_MTK : TP2 (VA407)
+1V8_VIO_MTK :TP1 (VA405)
TP3(VA403) TP4(VA404)
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3. TROUBLE SHOOTING
- 104 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.12 Vibrator
Vibrator signal path is MT6329(U804) -> Vibrator. Motor Type is DC Motor
START
Change Main Board
Check Power3.0V Motor Power is OK?
Yes
YesCheck Main PCB VB601 Pad.
Is it Normal?
No
No
END
Change MT6329 (U804)
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3. TROUBLE SHOOTING
- 105 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
TOP
VB601
VB601
2
1
D 6 0 2
20
R616
R615
20
C613
1u
L601 18n
1
VA602
+3V0_VIBR_MTK
NON Q-COIN
MOTOR
VB601
MOTOR
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3. TROUBLE SHOOTING
- 106 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.13 Camera
3.13.1 8M Main
8M camera control signals are generated by MT6575 (U200 : Main Chipset).
START
Check the camera Conn.And reconnect the camera
Change the Camera
Check VIO(TP1), AVDD(TP2 ),DVDD(TP3)
Camera is OK ?
Yes
Yes
Yes
Yes
Check the camera signals MCLK(TP4),MIPI_CLK(TP5), MIPI_DATA(TP6)
Camera is OK ?
No
No
No
END
Change the Main board
END
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3. TROUBLE SHOOTING
- 107 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
BOT
+2V8_CAM_VCM
TP402
C425
2.2u
FL404
109
54637281 P1 P8
P2 P7P3 P6P4 P5
G 1
G 2
DNI
C427
DNI
C426
2.2u
C422
C419
DNI
2.2K
R406
V A 4 0 2
2.2u
C423 C424
2.2u
CN402
1312
1411
1510
169
178
187
196
205
214
223
232
241
R403 0
FL403
143
P3P2
P4P1
P 6
P 5
+1V8_CAM_VIO
I2C_COMMON_SCL
I2C_COMMON_SDA
CAM_MCLK
+1V8_CAM_VIO
CAM_RESET_N
CAM_DATA0_N_8MCAM_DATA0_P_8M
CAM_CLK_N_8MCAM_CLK_P_8M
CAM_DATA1_N_8MCAM_DATA1_P_8M
+2V8_CAM_VCM +1V2_CAM_DVDD
+2V8_CAM_AVDD
WP
8M MIPI CAMERA
MCLK: TP4(R403 or C419)
VIO: TP1(C423) AVDD: TP2(C424)
DVDD: TP3(C425)
MIPI_DATA: TP6 (FL404)
MIPI_CLK: TP5 (FL403)
MIPI_CLK: TP5MIPI_DATA: TP6
VIO: TP1
DVDD: TP3
AVDD: TP2
MCLK: TP4
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3. TROUBLE SHOOTING
- 108 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.13.2 1.3M VT
1.3M camera control signals are generated by MT6575 (U200 : Main Chipset).
START
Check the camera Conn.And reconnect the camera
Change the Camera
Check VIO(TP1), AVDD(TP2 ),DVDD(TP3)
Camera is OK ?
Yes
Yes
Yes
Camera is OK ?
No
No
END
Change the Main board
END
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3. TROUBLE SHOOTING
- 109 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
BOT
C 4 3 2
1 0 0 n
1 0 0 n
C 4 3 1
1 0 0 n
C 4 3 3
CN405
1110
129138147156165174183192201
+1V2_CAM_DVDD
+2V8_CAM_AVDD
+1V8_CAM_VIO
ZD401 ZD402 ZD403
I2C_COMMON_SCLI2C_COMMON_SDA
CAM_MCLK
CAM_DATA0_N_1.3M
CAM_CLK_N_1.3M
VT_CAM_RESET_N
CAM_CLK_P_1.3M
CAM_DATA0_P_1.3M
DVDD: TP3(C431)
AVDD: TP2(C433)
VIO: TP1(C432)
VIO: TP1
AVDD: TP2
DVDD: TP3
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3. TROUBLE SHOOTING
- 110 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.14 LCD
The LCD control signals are generated by MT6329. It needs three external powers like VIO, VCI and IO. And its interface is MIPI
having three data lanes and one clock lane.
START
Press PWR keyturn the power ON
The LCD works
Change the Main Board
Disconnect and re-connectLCD Connector(CN401)
LCD display is OK ?
Is the circuit Powered ?
Yes
Yes
Yes
No
No
No
END
Change the LCD Module
Follow the Power ON Troubleshooting
Check LCD Power+3V0_LCD_VCI_MTK(TP1),+1V8_LCD_VIO_MTK(TP2),
MIPI_CLK (TP3),MIPI_DATA (TP4)
LM3639(U404) output LEDA(TP5)
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3. TROUBLE SHOOTING
- 111 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
+1V8_LCD_VIO_MTK
FL402
1 0
9
8
4
7
3 6
2
5
1
C 4 1 0
1 u
C 4 1 1
1 u
+3V0_LCD_VCI_MTK
TP401
CN401
1312
1411
1510
169
178
187
196
205
214
223
232
241
DDVDL_-5V5
DDVDH_+5V5
FL401 6
5
3241
D1
D4 D2
D3
G 1
G 2
VA408
2
1
VA409
2
1
VA410LCD_MIPI_CLK_N
LCD_MIPI_DATA0_N
LCD_MIPI_DATA1_N
LCD_PWM
LCD_MAKER_ID
LCD_RESET_N
LCD_MIPI_CLK_P
LCD_MIPI_DATA1_P
LCD_MIPI_DATA0_P
LED_C1
LEDA
LED_C2
Power for Analog(3.0V)VIO: TP2 (C410)
MIPI_CLK: TP3 (FL401)
MIPI_DATA: TP4(FL402)
VCI: TP1 (C411)
L403
1u
1 0 0 K
R 4 0 5
R 4 0 4
1 0 0 K
V A 4 0 1
10u
L402
C415
10u
D401
1u
C414
10uC416
U404
B4
C1
A3
A4 E3
D3
E2
E1
B3
B2
A1
D2
A2
E4
B1D4
D1
C4
C3
C2 TX
STROBE
VIN
BLED1
PWM FLED2
S W B
OUTF1
SCL
FLED1
OUTF2
S W F 2
BLED2
OVP
SDA
G N D 3
G N D 1
S W F 1
EN
G N D 2 LD401
2
1
I2C_COMMON_SCLI2C_COMMON_SDA
LCD_PWM
FLASH_LTD
VBATT
LED_C1
LEDA
LED_C2FLASH_EN
LCD_BL_EN
Width : 0.3mm
Width : 0.3mmWidth : 0.3mm
LED_OUT:TP5(C414)
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3. TROUBLE SHOOTING
- 112 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
BOT
LEDA: TP5 (C414)
VIO: TP2 (C410)
VCI: TP1 (C411)MIPI_DATA: TP4(FL402)
MIPI_CLK: TP3 (FL401)
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3. TROUBLE SHOOTING
- 113 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.15 BT/Wi
BOT
TOP
TP1
TP3TP2
L
J
14
1213
24
10 6
5
C832
V A 7 0 6
ANT804
SC215
C330
F B 8 0 3
C 8 4 6
FB802
C424
R 4 1 0
V A 7 0 1
R627
L 3 0 5
R 8 1 5
C 8 0 2
328
L302
C 4 3 4
C 8 4 0
L807
U804
T P 4
0 2
L 3 0 1
C339
Z D 7 0 3
FL803
L809
R 3 0 2
X801
R403
VA402
C426
R320
C419
C 8 0 7 VA405
C263
C806
0 6
C 8 7 1
R 7 0 8
FL404
C 8 4 5
C868
V A 7 0 5
C 8 2 6
R812
VA406
TP801
R411
C837
8 0 1
C 8 2 3
R 8 1 7
T
F L 4 0 3
C N
4 0 2
C333
C831
R 4 1 2
R 8 1 4
R 3 0 1
C331
FB801
C 8 5 2
L805
C 8 4 1
C808 C 8 0 9
C332
VA403
L812
BAT700 C 7 1 8
C262
C872
R 7 0 5
C422
C427
C836
C 8 4 7
C843
L 3 0 3
C873
R 4 0 6
C425
J 5 0 1
C336
C 8 4 8
C609
C 8 1 3
ZD801
V A 7 0 3
C822
R408
C 8 5 1
C 8 0 3
C322
VA407
C 8 2 7
U803
C801 C 7 0 9
C 8 7 0
C817
VA404
C N 4 0 6
TP812
V A 7 0 4
R 8 1 6
C 8 5 5
V A 7 0 2
C 7 1 0
C804
R 7 1 5
C869
C810LD401
C828
C423
TP810
R813
TP4
TP5
TP6
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3. TROUBLE SHOOTING
- 114 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
A N T 8 0 4
M B V 6 2 5 6 2 0 0 1
1
F E E D
DNI
L812
1
2
C843
DNI
1
2
C871 100pC840 1.5n
21
FL803
3
2
1IN
G N DOUT
C873
DNI1
2
R 8 0 4
1 0 K
2
1
1 0 K
R 8 0 5
C833 100p 1 2
C872
DNI1
2
C841 1n
21
100pC850 1 2
DNI
C853
1
2C854
DNI1
2
L810
DNI
2
1
FL802
4
3
5 2
6
1
O U T 1 VCTL1
GNDIN
O U T 2
VCTL2
8.2p
C838
C844
8.2p
WIFI_TX
ANTSEL_1
ANTSEL_0
WIFI_RX_BT_TRX
Close to Pin A3
Close to Pin A5SPDT for BT&Wi-Fi
TP6TP5
TP3TP1
TP4
TP2
1
3
4
2
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3. TROUBLE SHOOTING
- 115 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
1 u
C 8 4 9
C851
100n1
2
C 830 1 u
C839
1u
C835
100n
C 829 1 u
100n
C834
C 8 4 6
1 0 0 n
1 0 p
C 8 4 5
1 0 p
C 8 4 7
1 0 p
C 8 4 8
0.1u
C836
0.1u
C837
120FB802
T P 8 1 3
T P 8 1 2
T P 8 1 1
TP810
1U801
L12
N12
M11
N11
M10
H11
H12
D8
H8
J11
J12
L13
M13
N13
N10
N9
L10
L11
J13
H13
F13
G13
L5
L7
B12
A11
C11
A12
C12
C13
G7
G8
G9
F9
F4
A13
B13
E12
H10
E13
D13
B11
E8
A8
B8
B5
B9
A9
G 2
D 7
D 6
C 7
C 6
D 9
M 9
J 3
H 2
J 2
L 9
J 9
E 1
C 2
A 1
G 1
C 4
E 4
E 6
E 7
K 7
F 5 E
3 C 5
E 5
D 4
E 2
G 3
B 1
B 3
C 3
H 4
K 8
M 8
N 8
H 5
M 7
J 8 G 4
L 8 G 5
A 4
A 5
A 3
C 1
D 1
R X
_ 5 G_ I N
T X 5 G
_ O U T
T X 2 G
_ O U T
R X 2 G
_ I P
R X 2 G
_ I N
E E D I
E E S K
E E C S
C L K
_ D C
S D 1_ D A T 1
S D 1_ D A T 2
S D 1_ D A T 3
S D 1_ C M D
S D 1_ C L K
S D 1_ D A T 0
A V S S 3 3_ B A
A V S S 3 3_ P A
_ 1
A V S S 3 3_ P A
_ 2
A V S S 1 3_ W I F I S X
_ 1
A V S S 3 3_ W I F I S X
_ 2
A V S S 1 3_ B B
A V S S 1 3_ P L L_ 1
A V S S 1 3_ P L L_ 2
A V S S 1 3_ T R X 2 G 5 G
G N D 1
G N D 2
A V D D 1 3_ P L L_ 1
A V D D 1 3_ P L L_ 2
A V D D 1 3_ B B
A V D D 1 3_ T R X 5 G
A V D D 1 3_ W I F I S X
_ 1
A V D D 3 3_ P A
A V D D 3 3_ B A
A V D D 3 3_ W I F I S X
_ 2
D V D D I O
_ S D I O 1
A N T S E L_ 4
A N T S E L_ 3
A N T S E L_ 2
A N T S E L_ 1
A N T S E L_ 0
W L A N
_ A C T
A V S S 1 3_ B T S X A F E
_ 1
A V S S 1 3_ B T S X A F E
_ 2
A V S S 1 3_ B T S X A F E
_ 3
A V S S 1 3_ B T S X A F E
_ 4
N C 3
AVDD13_BTAFE AVSS13_BTAFE_1 AVSS13_BTSXAFE AVSS13_BTSX_1 AVSS13_BTSX_2GND3NC1OSC1_GPSSYNCECLOCKDUTY_LOSSRF_INN_GPSRF_INP_GPSGPIO1_25GPIO1_24GPIO1_26GPIO1_27GPIO1_28 AVDD28_OSC AVDD13_SXIF_GPS AVDD13_LNA_GPS AVSS28_OSC AVSS13_RX_GPS AVSS13_SXIF_GPS
GPIO1_13GPIO1_12GPIO1_14
RTCCLK_ORTCCLK
VRTC AVSSRTC
FM_AUIN_RFM_AUIN_L
FM_AUOUT_RFM_AUOUT_L
FM_TX_OUTFM_RX_IN_NFM_RX_IN_PI2S_DATA_IN
I2S_DATA_OUTI2C_SDAI2C_SCLI2S_CLKI2S_WS
NC2FM_VDD28FM_VDD13
FM_VSS2FM_VSS1
FB803 120
C831 100p
.
+ 2 V 8_ V I O
_ M T K
S D 1_ D A T 1
S D 1_ D A T 2
S D 1_ D A T 3
W I F I_ T X
A N T S E L_ 1
A N T S E L_ 0
S D 1_ C L K
S D 1_ C M D
S D 1_ D A T 0
W I F I_ A V D D 1 3
W I F I_ R X
_ B T
_ T R X
W F
_ P A
_ V C C
Close to MT6577
3. Make star connection for AVDD13 (Both E6,E7 and E4,C4,G1) C l o s e t o M T 6 6 2 0
C l o s e t o M T 6 6 2 0
1
2 4 3
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3. TROUBLE SHOOTING
- 116 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
START
BT-WiFi will work properly
Check the Signal level at TP1 (U801 )
Check the signal level at TP2 (U801)
Check the signal level at TP3 (U801)
Check the signal level at TP4 (FL802)
Check the signal level at TP5(FL803)
Check the Antenna Clip (ANT804)
Replace U801
Replace U801
Replace U801
Replace FL802
Replace FL803
Replace ANT804
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
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3. TROUBLE SHOOTING
- 117 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.16 GPS Part
BOT L
J
14
1213
24
10 6
5
C832
V A 7 0 6
ANT804
SC215
C330
F B 8 0 3
C 8 4 6
FB802
C424
R 4 1 0
V A 7 0 1
R627
L 3 0 5
R 8 1 5
C 8 0 2
328
L302
C 4 3 4
C 8 4 0
L807
U804
T P 4 0 2
L 3 0 1
C339
Z D 7 0 3
FL803
L809
R 3 0 2
X801
R403
VA402
C426
R320
C419
C 8 0 7 VA405
C263
C806
0 6
C 8 7 1
R 7 0 8
FL404
C 8 4 5
C868
V A 7 0 5
C 8 2 6
R812
VA406
TP801
R411
C837
8 0 1
C 8 2 3
R 8 1 7
T
F L 4 0 3
C N 4 0 2
C333
C831
R 4 1 2
R 8 1 4
R 3 0 1
C331
FB801
C 8 5 2
L805
C 8 4 1
C808 C 8 0 9
C332
VA403
L812
BAT700 C 7 1 8
C262
C872
R 7 0 5
C422
C427
C836
C 8 4 7
C843
L 3 0 3
C873
R 4 0 6
C425
J 5 0 1
C336
C 8 4 8
C609
C 8 1 3
ZD801
V A 7 0 3
C822
R408
C 8 5 1
C 8 0 3
C322
VA407
C 8 2 7
U803
C801 C 7 0 9
C 8 7 0
C817
VA404
C N 4 0 6
TP812
V A 7 0 4
R 8 1 6
C 8 5 5
V A 7 0 2
C 7 1 0
C804
R 7 1 5
C869
C810
LD401
C828
C423
TP810
R813
TP1
X80126MHz
7L26002009
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3. TROUBLE SHOOTING
- 118 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
BOT
TOP
TP5
TP6TP4
A
B
C
D
L
J
1
14
1213
24
10 6
5
C832
V A 7 0 6
A
SC215
C330
F B 8 0 3
R608
401
C 8 4 6
FB802
C424
J 7 0 1
R 4 1 0
V A 7 0 1
R627
L 3
C326 R 8 1 5
C 8 0 2
C328
L302
C 4 3 4
C 8 4 0
L807
T P 4 0 2
L 3 0 1
C339
FL803
L809
R 3 0 2
X801
R403
VA402
C426
R320
C419
C 8 0 7 VA405
U 6 0 4
C263
C806
L 8 0 6
C
8 7 1
FL404
C 8 4 5
402
V A 7 0 5
C 8 2 6
R812
VA406
TP801
C610
R411
29
C837
A N T 8 0 1
C 8 2 3
R 8 1 7
T
F L 4 0 3
C N
4 0 2
C333
31
C831
R 4 1 2
CN501
R 8 1 4
R 3 0 1
C331
FB801
C327
C 8 5 2
L805
C 8 4 1
C808 C 8 0 9
C332
VA403
L
BAT700 C 7 1 8
C262
C872
R 7 0 5
C422
C427
C836
C 8 4 7
C
R628
L 3
C873
R 4 0 6
C425
J 5 0 1
C336
C 8 4 8
33
C609
C 8 1 3
ZD801
V A 7 0 3
C822
R408
C 8 5 1
C 8 0 3
VA407
C 8 2 7
C801 C 7 0 9
C 8 7 0
C817
VA404
C N 4 0 6
TP812
403
V A 7 0 4
R 8 1 6
C 8 5 5
V A 7 0 2
C 7 1 0
C804
R 7 1 5
C869
32
C810LD401
C828
C423
TP810
R813
FL8031575.42MHz
Filter
TP2
TP3
ANT801
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3. TROUBLE SHOOTING
- 119 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
A N T 8 0 1
M B V 6 2 5 6 2 0 0 1
1
F E E D
ZD801
2
1
L804 5.6n
L805
6.8n
2
1
L806
100p1
2
DNI
L807
1
2
C818 33p
C819
DNI
100pC817
1575.42 MHz
FL801
5 2
4 1
3G3
INOUTG1G2
1
2
.
GND
L802 3n
21
C821 4.7n
21R803
1K21
L803 1221
C816
0.1u
C815
18p
DNI
L808
2
1
6.8p
C825
U802
3
2
5
4
1
R F
_ I N
FIL_OUT
VDD
S_D
GND
+2V8_TCXO_LDO
GPS_LNA_EN
RF_INP_GPS
Near To LNA
TP2 TP3
TP4
TP5
TP6
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3. TROUBLE SHOOTING
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LGE Internal Use Only
26MHz
X801 7L26002009
GND2VCC 4OUTPUT3
GND_NC 1
1nC852
C855
1u1
2OSC1_GPS
+2V8_TCXO_LDO
1 u
C 8 4 9
C851
100n1
2
C835
100n
100n
C828C827
100n10p
C826
100n
C834
C 8 4 6
1 0 0 n
1 0 p
C 8 4 5
1 0 p
C 8 4 7
1 0 p
C 8 4 8
T P 8 1 3
T P 8 1 2
T P 8 1 1
U801
B12
A11
C11
A12
C12
C13
G7
G8
G9
F9
F4
A13
B13
E12
H10
E13
D13
B11
E8
A8
B8
B5
B9
A9
B7
B6
K9
D 9
M 9
J 3
H 2
J 2
L 9
J 9
E 1
C 2
A 1
G 1
C 4
E 4
E 6
E 7
K 7
F 5
E 3
C 5
E 5
D 4
E 2
G 3
B 1
B 3
C 3
H 4
K 8
M 8
N 8
H 5
M 7
J 8
G 4
L 8
G 5
A 4
A 5
A 3
C 1
D 1
R X
_ 5 G
_ I N
T X 5 G
_ O U T
T X 2 G
_ O U T
R X 2 G
_ I P
R X 2 G
_ I N
E E D I
E E S K
E E C S
C L K
_ D C
S D 1_ D A T 1
S D 1_ D A T 2
S D 1_ D A T 3
S D 1_ C M D
S D 1_ C L K
S D 1_ D A T 0
A V S S 3 3_ B A
A V S S 3 3_ P A
_ 1
A V S S 3 3_ P A
_ 2
A V S S 1 3_ W I F I S X
_ 1
A V S S 3 3_ W I F I S X
_ 2
A V S S 1 3_ B B
A V S S 1 3_ P L L_ 1
A V S S 1 3_ P L L_ 2
A V S S 1 3_ T R X 2 G 5 G
G N D 1
G N D 2
A V D D 1 3_ P L L_ 1
A V D D 1 3_ P L L_ 2
A V D D 1 3_ B B
A V D D 1 3_ T R X 5 G
A V D D 1 3_ W I F I S X
_ 1
A V D D 3 3_ P A
A V D D 3 3_ B A
A V D D 3 3_ W I F I S X
_ 2
D V D D I O
_ S D I O 1
A N T S E L_ 4
A N T S E L_ 3
A N T S E L_ 2
A N T S E L_ 1
A N T S E L_ 0
DVDDIO_SD2 AVDD33_BTTX AVDD13_BTRX AVDD13_BTAFE AVSS13_BTAFE_1 AVSS13_BTSXAFE AVSS13_BTSX_1 AVSS13_BTSX_2GND3NC1OSC1_GPSSYNCECLOCKDUTY_LOSSRF_INN_GPSRF_INP_GPSGPIO1_25GPIO1_24
GPIO1_26GPIO1_27GPIO1_28 AVDD28_OSC AVDD13_SXIF_GPS AVDD13_LNA_GPS AVSS28_OSC AVSS13_RX_GPS AVSS13_SXIF_GPS
.
+1V8_VIO_MTK
+ 2 V 8_ V I O
_ M T K
GPS_SYNC
S D 1_ D A T 1
S D 1_ D A T 2
S D 1_ D A T 3
W I F I_ T X
A N T S E L_ 1
A N T S E L_ 0
S D 1_ C L K
S D 1_ C M D
S D 1_ D A T 0
W I F I_ A V D D 1 3
OSC1_GPS
W I F I_ R X
_ B T
_ T R X
BT_AVDD33
GPS_AVDD13
W F
_ P A
_ V C C
BT_AVDD13
+2V8_TCXO_LDO
RF_INP_GPS
C l o s e t o M T 6 6 2 0
C l o s e t o M T 6 6 2 0
Close to Pin A9
TP1
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3. TROUBLE SHOOTING
- 121 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
START
GPS will work properly
Check the Signal level at TP1 (X600 )
Check the voltage at TP5 , +2.8V?
Check the signal level at TP6 (U601)
Check the signal level at TP4 (FL600)
Check the Antenna Clip TP2 (ANT601)
Replace X600
The Problem may be Logic partRefer to Logic troubleshoot
Replace U601
Replace FL600
Replace ANT601
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
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3. TROUBLE SHOOTING
- 122 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3.17 FM Radio
TOP
L503,R515,L504
100n
L504
2
1
L503 100n
R513DNI
1
C533
47p1
2
47p
C534
1
2
EAR_REAR_L
FM_ANTL503
L504,R513
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3. TROUBLE SHOOTING
- 123 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
START
FM will work properly
Check the ear-jack condition
Good?
Check the components conditionGood? (R515,L504,L503)
Check Bias Voltage
Good?
Replace ear-jack
Give the addition solder in(R515,L504,L503)
Replace U801
No
No
No
Yes
Yes
Yes
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3. TROUBLE SHOOTING
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LGE Internal Use Only
3.18 IRRC
TOP
TP2: LD601(+2V8_IrRC_LDO)
TP4 (LINE_OUT_IRRC)
TP1: C530(+2V8_IrRC_LDO)
TP3 (IRRC_TX)
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3. TROUBLE SHOOTING
- 126 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
START
Entire PCB looks being damaged
Check for whether TP1 is 0 V
Check TP2 Is it right?
Check TP3 right? Check TP4 right?
Replace U608
Replace LD601
Replace U605
No
No
NoNo
Yes
Yes
Yes Yes
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4. DOWNLOAD
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LGE Internal Use Only
4. DOWNLOAD
This document is draft version, so the contents will be updated after registering the nal one.
TOOL INFORMATION
TOOL VERSION DLL NAME USB DRIVER
Please Check the Version to “B2B”
H/W
Name Part No. Software
D/L Cable
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4. DOWNLOAD
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LGE Internal Use Only
LGD686
LGD686
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4. DOWNLOAD
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LGE Internal Use Only
LGD686
LGD686
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4. DOWNLOAD
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LGE Internal Use Only
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4. DOWNLOAD
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LGE Internal Use Only
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4. DOWNLOAD
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LGE Internal Use Only
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4. DOWNLOAD
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LGE Internal Use Only
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4. DOWNLOAD
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LGE Internal Use Only
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4. DOWNLOAD
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LGE Internal Use Only
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4. DOWNLOAD
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LGE Internal Use Only
LGD686
LGD686
LGD686AT-00-V10a-SSV-XXX-JUN-03-2013+0.tot
LGD686
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4. DOWNLOAD
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LGE Internal Use Only
LGD686
LGD686
LGD686AT-00-V10a-SSV-XXX-JUN-03-2013+0.tot
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4. DOWNLOAD
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LGE Internal Use Only
LGD686
LGD686
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4. DOWNLOAD
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LGE Internal Use Only
LGD686LGD686
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4. DOWNLOAD
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LGE Internal Use Only
LGD686LGD686
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5. BLOCK DIAGRAM
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LGE Internal Use Only
5. BLOCK DIAGRAM
[LG-D686] HW Block Diagram (Dual SIM)
Audio
AMP
MT6577
(AP)
TDP/N5.5” TFT LCD
(960x540)
MT6162
(RF Transceiver)
JTAG
DDRAM
DQM/S
RF I/F
Proximity
USB
Accelerometer
Compass
MSCD
5Pin u-USB
Main Camera (8M AF MIPI)
EAR_L/R
MIPI I/F
BL Booster/
Flash Driver Touch Screen
JTAG
8Gb LPDDR2
8GB eMMC
SKY77589
(TX MODULE)
I2C1
Camera
FLASH
I2C1
I2C0
I2C0
MIC1MIC1
MIC2MIC2
MAIN
ANT
SwitchingCharging IC
SD I/F
Volume BTN
USIM Dual SIMI2C0
NML
32.768kHz
RCV
3.5 pi
BSI
MT6620
(Connectivity)
I2S GPS LNA
SPDT
(BT/WIFI)
BT/WiFi ANTPCM
PMIC
(MT6329)
PWR BTN
Motor
SD CARD
26MHz
2G DCS SAW FILTER
3G QUAD BAND
26MHz
2G TX
FM RADIO
BATTERY
3,140mAh
Quick memo BTN
3G DUAL PA
SKY77758
3G DUAL PA
SKY77758SPDT
I2C2Front Camera
(1.3M FF I2C)
DSV
GPS ANT
Dual SPK
IrRC
HPLP/HPRP
HSN/HSP
Booster Dual AMP
Booster Dual AMP
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5. BLOCK DIAGRAM
- 145 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
[LG-D686] RF Block Diagram
TxModule
SKY77589
IncludedGSM PAM TX_QN
TX_QP
RX_BBIPRX_BBIN
XO1_REFIN
LNA6NLNA6P
TX_LB1
TX_HB1
TX_LB2
TX_HB3
LNA3NLNA3P
RX_BBQPRX_BBQN
TX_INTX_IP
VCTCXO26MHz
DL_I_PDL_I_NDL_Q_PDL_Q_N
UL_I_NUL_I_PUL_Q_NUL_Q_P
PAM
W850DUPLEXER
W900DUPLEXER
PAM
AFCMT6577
BPI_BUS0BPI_BUS1BPI_BUS2
PA_ON_B2_EN BPI_BUS10PA_ON_B1_EN BPI_BUS11PA_ON_B5_EN BPI_BUS12PA_ON_B8_EN BPI_BUS13
BPI_BUS5APC
GSM850_GSM900_TX
DCS_PCS_TX
Rx_DCS
C o u p le r
C o u p le r
LNA5NLNA5P
CLKDATA0DATA1
EN
BSI1_CLKBSI1_DATABSI1_CS1BSI1_CS0
CLK26M
VM0PA_R0
TX_ENVRAMP
REF_CLK
MODEBS
VSW_EN
Thermistor AUX_IN3
VDD_1aVDD_28aVDD_28b
MT6329PMIC
MT6162
ANT_SEL0~2
GPA_PA_RAMP
GPA_PA_EN
TRX1 SAWFILTER
TX_HB_IN
TX_LB_IN
W1900DUPLEXER
W2100DUPLEXER
SPDT
TX_HB2
LNA4NLNA4P
LNA4NLNA4P
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5. BLOCK DIAGRAM
- 146 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MT6577 8GB + 8Gb MCP
DDRAM_CLK_ENDDRAM_CS[0]_N
DDRAM_ADDRESS_[0:9]
CLK_T
CLK_C
CKE0CS0_n
CA[0:9]
DQ[0:31]
Micro SDMSDC1_CLK
MSDC1_CMD
MSDC1_DATA[0:3]SD_DATA[0:3]
SD_CMD
SD_CLK
+3V0_MICRO_SD
SD_DETECT
+1V8_VIO_MTK
DDRAM_CLK_PDDRAM_CLK_N
ECKEECS0_B
ED[0:31]
ED_CLKED_CLK_B
DDRAM_DATA_[0:31]
LPDDR2X32 8Gb2CS
eNAND x8 8GB
DAT[0:7]eMMC_DATA[0:7]
RSTeMMC_RST
CMDeMMC_CMD
CLKMeMMC_CLK
H9TP65A8JDACPR-KGM
MSDC1_INSI
VMCH
SCLK
SIOUSIM1_DATA
USIM1_CLK
+3V0_VSIM_VCC
USIM1_RESET_NSRST
VSIM
USIM1
SCLK2
SIO2USIM2_DATA
USIM2_CLK
+3V0_VSIM2_MTK
USIM2_RESET_NSRST2
VSIM2
USIM2
DDRAM_DQS_[0:3]_PDQS[0:3]_T
DDRAM_DQS_[0:3]_NDQS[0:3]_C
DDRAM_DQM[0:3]DM[0:3]
+3V3_eMMC_MTK
+1V2_VLPDDR2_MTK
EA[0:9]
EDQS[0:3]
nEDQS[0:3]
DAT[0:7]
RSTB
CMD
CLK
VIO18
VMC
VM12_1
CLK
CMD
DATA[0:3]
DET
VDD
CLK1
IO1
RST1
VCC1
CLK2
IO2
RST2
VCC2
DDRAM_CS[1]_N CS1_nECS1_B
DQM[0:3]
[LG-D686] Memory, MICRO-SD, USIM
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5. BLOCK DIAGRAM
- 148 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
4 LDO
Backlight+Camera Flash
(LM3639)
MT6577
8M AFCAMERA
MIPI
1.3M FFCAERA
MIPI
MCLK
CAM_DATA[0:1]_P
CAM_MCLK
CAM_VCM_PWDN
SCL
SDAI2C_COMMON_SDA
I2C_COMMON_SCL
CAM_RESET_N
CMMCLK
RCP
RDP[0:1]
CMPDN
KP_ROW6
KP_ROW7
CMRST
+2V8_CAM_AVDD
+2V8_CAM_VCM
+1V8_CAM_VIO
RCN
CAM_CLK_P
CAM_CLK_N
CAM_DATA[0:1]_NRDN[0:1]
OUT1
FLED1
FLED2
+VBATBattery
KP_ROW3
SCL
SDA
STORBE
FLASH_EN
KP_ROW2
TXFLASH_LTD
EMIFilter
EMIFilter
OUT2
OUT3
OUT4
+1V2_CAM_DVDD
MIPISwitch
[LG-D686] Camera (Main:8M AF, Sub:1.3M FF)
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5. BLOCK DIAGRAM
- 149 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
SPK ampTPA2015D1
RCV_P
RCV_N
SPK ampTPA2015D1
MT6577
HPH_LHPLP
HPRP
OUT+
OUT-
HPH_R
VIO18 IN
IN
AU_VIN0_P
AU_VIN0_N
AU_VIN1_P
AU_VIN1_N
VMICVMIC
SPKSPK_RP
SPK_RN
EAR_L
EAR_R
H e a d s e t
HSP
HSN
Main MI C
E ARBI ASE AR MIC _BI AS
MIC _P
MIC _N
AU_VIN2_P
AU_VIN2_N2 n d MI C
MIC 2 _P
MIC 2 _N
E ARMI C _P
E ARMI C _N
RCV
SPKSPK_LP
SPK_LN
Headphone ampTPA6136
Headset_AMP_EN
INL
INR
EN
OUT+
OUT-
SPK_AMP_R_EN EN
SPK_AMP_L_EN EN
[LG-D686] HW Block Diagram : Audio
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5. BLOCK DIAGRAM
- 150 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MT6577
6 Axis Sensor BMC-150
PROXIMITY SENSORAPDS-9130-200
+1V8_VIO_MTK
+3V0_SENSORS_MTK
I2C_SENSOR_SCL
I2C_SENSOR_SDA
3AXIS_INT
SCL
SDI
COMPASS_DRDY
PROX_INTINT
SCL_0
SDA_0
EINT0
KP_ROW4
EINT3
INT1
VCAM_AF
VIO18
SCL
SDA
I2C_COMMON_SCL
I2C_COMMON_SDA
KP_ROW6
KP_ROW7
DRDY
Hall ICBU52031NVX
OUTHALLIC_INT
EINT1
[LG-D686] HW Block Diagram : SENSOR
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LGE Internal Use Only
6. CIRCUIT DIAGRAM
+3V0_SENSORS_MTK
+1V8_VIO_MTK
U804
L 1 2
N 6
N 8
N 7
L 1 3
L 1 4
K 9
N 1 1
M 1 0
N 1 2
N 1 3
N 1 4
M 1 3
E 5
E 9
F 6
E 2
D 1
C 1 1
C 6
C 5
E 8
C 7
N 9
H 1 3
K 1 4
J 1 4
H 1 4
G 1 4
C 1 3
B 1 4
B 1 3
A 1 4
E 1 4
E 1 3
H3J5
K2
J2
E7
G5G3B6 A5B5 A7F3F2B8B11B7 A11C10C8 A8B9E3F5E1B10C9 A10
D12
H12
C12
K13
J13
A13
G13
G12
E10
D14
D13
C14
B12
E12
F13
F12
K5
G2
G1
E6
A3
B1
C3
B2
C4
C1
B3
D2
D3
A4
B4
M3
M4
N2
L2
A2
L3
K3
M2
J3
K1
H2
H1
L1
H5
N1
P11
P10
P12
P13
M5
P3
P2
N4
N3
N5
P5
P7
P8
P 1 4
H 6
K 8
J 7
H 7
G 7
M 6
K 6
M 7
K 7
M 9
M 8
K 1 0
M 1 1
M 1 2
P 1
A 1
J 6
G 6
F 7
K 1 2
J 1 2
J 1 0 J 9 J 8
H 1 0
H 9
H 8
G 1 0
G 9
G 8
F 1 0
F 9
F 8
G N D
_ V P R O C
_ 1
G N D
_ V P R O C
_ 2
G N D
_ V P R O C
_ 3
G N D
_ V C O R E
_ 1
G N D
_ V C O R E
_ 2
G N D
_ V C O R E
_ 3
G N D
_ V C O R E
_ 4
G N D
_ V I O 1 8_ 1
G N D
_ V I O 1 8_ 2
G N D
_ V I O 1 8_ 3
G N D
_ V R F 1 8_ 1
G N D
_ V R F 1 8_ 2
G N D
_ V P A
_ 1
G N D
_ V P A
_ 2
G N D
_ L D O
_ 1
G N D
_ L D O
_ 2
G N D
_ L D O
_ 3
B G A
_ N C - A
1
B G A
_ N C - P
1
G N D
_ D R V 1
G N D
_ I S I N K
_ 1
G N D
_ I S I N K
_ 2
G N D
_ S P K 1
_ 1
G N D
_ S P K 1
_ 2
G N D
_ S P K 2
_ 1
G N D
_ S P K 2
_ 2
G N D
_ L D O
_ 4
G N D
_ L D O
_ 5
G N D
_ L D O
_ 6
G N D
_ L D O
_ 7
G N D
_ L D O
_ 8
G N D
_ L D O
_ 9
G N D
_ L D O
_ 1 0
B G A
_ N C - P
1 4
VBAT_SPK1VBAT_SPK2
VBI_PVBI_N
AUD1_P AUD1_N
AUD2_P AUD2_N
BYPASS
SPK1_PSPK1_N
SPK2_PSPK2_N
VCDTCHR_LDOVDRVISENSEBATSNSBATONTREFPCH_DET
USB_DLNUSB_DLP
SRCLKENRESETBPWRKEYPMU_TESTMODEPWRBBSYSRSTBFSOURCE
SCKSDAINT
DVS1DVS2
PA_SEL0PA_SEL1PA_SEL2
BL_PWMHOMEKEY
CS+CS-32K_IN
VCORE_1VCORE_2VCORE_3
VCORE_FB
VPROC_1VPROC_2VPROC_3
VPROC_FB
VIO18_1VIO18_2
VIO18_FB
VPA_1VPA_2
VPA_FB
VRF18
VRF18_FB
VM12_1VM12_2
VM12_INTVRF28
VTCXOVA1
VIO28VSIM
VSIM2VMC
VMCHVGP
VGP2VUSB
VCAMAVCAMA_SVCAM_AF
VCAMDVCAM_IO
VIBRVA2
VA2_BUF
VRTC
VRET
GND_VREF
CHG_DPCHG_DM
V B A T_ V C O R E_ 1
V B A T_ V C O R E_ 2
V B A T_ V P R O C
_ 1
V B A T_ V P R O C
_ 2
V B A T_ V P R O C
_ 3
V B A T_ V P R O C
_ 4
V B A T_ V I O 1 8_ 1
V B A T_ V I O 1 8_ 2
V B A T_ V P A_ 1
V B A T_ V P A_ 2
V B A T_ V R F 1 8
V B A T_ M I S C
V B A T
_ L D O 2_ 1
V B A T
_ L D O 2_ 2
V B A T
_ L D O 3_ 1
V B A T
_ L D O 3_ 2
V B A T_ L D O 4
V B A T
_ L D O 5_ 1
V B A T
_ L D O 5_ 2
A V D D 1 8_ I O
A V D D 1 8
A V D D 1 8_ D I G
I S I N K 0
I S I N K 1
I S I N K 2
I S I N K 3
I S I N K 4
I S I N K 5
B S T_ G D R V
K P L E D
F L A S H
A S W
_ I N 1
A S W
_ I N 2
A S W
_ O U T
G N D
_ D R V 2
0R32021
2.2uL302
1 0 0 n
C 3 1 5
1
2
C 3 1 3
2 . 2 u
1
2 1 0 0 n
C 3 1 4
1
2
+1V2_VLPDDR2_MTK
C 3 0 4
1 0 0 n
1
2
1 0 n
C 3 0 2
1
2
2 0 0 K
R 3 0 3
2
1
+1V2_VLPDDR2_MTK
2 . 2 u
C 3 0 3
1
2
TP3011
+1V8_VIO_MTK
2 0 0 K
R 3 0 4
2
1R306
10K2 1
4 7 K
R 3 1 0
2
1
4 7 K
R 3 1 4
2
1
4 7 K
R 3 1 3
2
1
4 7 K
R 3 1 2
2
1
4 7 K
R 3 1 1
2
1
R 3 0 9
4 7 K
2
1
4 7 K
R 3 0 8
2
1
4 7 K
R 3 0 7
2
1
1 0 0 n
C 3 1 91
2
C306
1u1
2
+1V8_VIO_MTK
1u
C318
1
2
C 3 1 0
0 . 1
u
1
2 0
. 1 u
C 3 0 9
1
2
1 0 0 n
C 3 1 6
1
2
C 3 1 7
2 . 2
u
1
2
4.7uC339 1 2
C 3 1 2
4 . 7
u
100K
R30121
4.7uL304
+3V3_eMMC_MTK
C 3 0 7
4 . 7
u
C 3 3 6 4 . 7 u 1 2
C333 4.7u 1 2
4.7uC332
1 2
L 30 3 2 .2 u
R 3 18 3 . 3 K
C 3 2 5
1 u
1
2 C 3 2 6
1 u
1
2 C 3 2 7
1 u
1
2
1 u
C 3 2 8
1
2
C311
1u1
2
1u
C331
1
2
C 3 4 0 1 u 1 2
330kR317
C 3 2 2
2 . 2
u1
2 C 3 2 3
2 . 2
u1
2
2.2u
C3381
2
C 3 3 4 1 0 n 1 2
1 0 u
C 3 2 1
1 0 u
C 3 2 0
D3011 2
1 0 n
C 3 0 1
1
2
C 3 0 5
1 0 0 n
1
2
1 u
C 3 2 9
1
2 C 3 2 4
2 . 2
u1
2
C 33 5 1 u
1 M
R 3 2 2
2
1
+1V8_VIO_MTK
1 u
C 3 3 0
1
2
4 7 K
R 3 2 3
2
1
100
R32121
U301
A5
A8B2
K3M9
J1L1T2
U5
B8
F10F7
G5H9
J10L6M6N6
R10T9
V7V10
E5G2K1M7U2W5
E6F1V1W6
B5C5
C1
B4 A4 A6B6 A7B7B3 A3
L2
P2
P1
N2
N1
M3
L3
F 3
G3
H2
H3
J3
J2
K2
R1
R2
R3
T3
U3
H7
T7
L5
N5
G8
G9
U8
U9
K6
K5
P6
P5
K8
K9
P9
P8
P7
R6
E7
G6
R9
E8
G7
E9
F8
H6
T6
V8
W9
U7
R7
T5
W8
U6
W7
H8
J8
J7
J9
J6
K7
R8
T8
H5
Y 1 0 Y
9 Y 2
Y 1
W 1
W 1 0
E 1 0
B 1 0 B
1 A 1 0 A
9 A 2
A 1
W 3
W 2
V 3
P 3
N 3
M 2
E 3
E 2
D 6
D 5
D 4
D 3
D 2
D 1
C 6
C 4
C 2
E1
B9
T1
M1
H1
V5
V2
U1
M8
F2
F5
G1
R5
V9V6
U10
T10
P10
M5
K10
J5
H10
G10
F9
F6
C3VSSQM
VSSQ1
VSSQ2
VSSQ3
VSSQ4
VSSQ5
VSSQ6
VSSQ7
VSSQ8
VSSQ10
VSSQ11
VSSQ12
VSSQ13
VSSQ9
VSS3
VSS2
VSS1
VSS4
VSS5
VSS6
VSS7
VSSCA1
VSSCA2
VSSCA3
VSSM1
VSSM2
N C 1
N C 2
N C 3
N C 4
N C 5
N C 6
N C 7
N C 8
N C 9
N C 1 0
N C 1 1
N C 1 3
N C 1 4
N C 1 5
N C 1 6
N C 1 7
N C 1 8
D N U 1
D N U 2
D N U 3
D N U 4
D N U 5
D N U 6
D N U 7
D N U 8
D N U 9
D N U 1 0
D N U 1 1
D N U 1 2
D N U 1 3
DQ28
DQ0DQ1
DQ10DQ11DQ12DQ13DQ14DQ15DQ16DQ17DQ18DQ19
DQ2
DQ20DQ21DQ22DQ23DQ24DQ25DQ26DQ27
DQ29
DQ3
DQ30DQ31
DQ4DQ5DQ6DQ7DQ8DQ9
DQS0_C
DQS0_T
DQS1_C
DQS1_T
DQS2_C
DQS2_T
DQS3_C
DQS3_T
DM0DM1DM2DM3
CA0CA1CA2CA3CA4CA5CA6CA7CA8CA9
ZQ N C 1 2
CLK_CCLK_T
CKE0CKE1
CS0_NCS1_N
VSS8
DAT0DAT1DAT2DAT3DAT4DAT5DAT6DAT7
RST
CMDCLKM
VDD1_4VDD1_3VDD1_2VDD1_1
VDD2_6VDD2_5VDD2_4VDD2_3VDD2_2VDD2_1
VDDQ13VDDQ12
VDDQ10VDDQ9VDDQ8VDDQ7VDDQ6VDDQ5VDDQ4VDDQ3
VDDQ1VDDQ2
VCCQ
VDDQ11
VDDCA3VDDCA2VDDCA1
VREFDQVREFCA
VCC2VCC1
VDDI
C342
1u1
2
2 4 0
R 3 1 5
2
1
L 3 05 2 . 2 u
21
R 3 1 9
5 1 K
2
1
C337
2.2u1
2
R305
2721
R 3 0 2
4 7 K
2
1
L 30 1 2 .2 u
+2V85_VRF_MTK
+2V85_VRF_MTK
+2V8_VTCXO_MTK
+3V4_VWPAM_MTK
+1V8_VIO_MTK
+1V8_VIO_MTK
+1V8_VIO_MTK
SCL_2SDA_2
RESET_IN
WATCHDOG_RESET
PMUCTRL0
BBWAKEUP
PMUCTRL1
PMU_INT
SRCLKENA
PACTRL2
PACTRL0PACTRL1
CHD_DPCHD_DM
+3V0_VSIM2_MTK
+2V8_VIO_MTK
eMMC_CLK
eMMC_RST
+3V0_VSIM_MTK
DDRAM_DQM_[2]DDRAM_DQM_[1]
DDRAM_DQM_[3]
DDRAM_DQS_[0]_PDDRAM_DQS_[1]_PDDRAM_DQS_[2]_P
DDRAM_DQS_[3]_NDDRAM_DQS_[2]_N
DDRAM_DATA_[19]DDRAM_DATA_[18]DDRAM_DATA_[17]DDRAM_DATA_[16]DDRAM_DATA_[15]DDRAM_DATA_[14]DDRAM_DATA_[13]DDRAM_DATA_[12]DDRAM_DATA_[11]DDRAM_DATA_[10]
+3V3_MICRO_IO
+2V8_VRTC_MTK
DDRAM_CS_[1]_N
DDRAM_DQM_[0]
DDRAM_CLK_NDDRAM_CLK_P
DDRAM_CS_[0]_N
DDRAM_ADDRESS_[0]DDRAM_ADDRESS_[1]DDRAM_ADDRESS_[2]DDRAM_ADDRESS_[3]DDRAM_ADDRESS_[4]DDRAM_ADDRESS_[5]DDRAM_ADDRESS_[6]DDRAM_ADDRESS_[7]DDRAM_ADDRESS_[8]DDRAM_ADDRESS_[9]
DDRAM_DATA_[9]
DDRAM_DATA_[1]
DDRAM_DATA_[29]DDRAM_DATA_[28]DDRAM_DATA_[27]DDRAM_DATA_[26]DDRAM_DATA_[25]DDRAM_DATA_[24]DDRAM_DATA_[23]DDRAM_DATA_[22]DDRAM_DATA_[21]DDRAM_DATA_[20]
DDRAM_DATA_[8]DDRAM_DATA_[7]DDRAM_DATA_[6]DDRAM_DATA_[5]DDRAM_DATA_[4]DDRAM_DATA_[3]DDRAM_DATA_[2]
DDRAM_DATA_[30]DDRAM_DATA_[31]
DDRAM_DQS_[3]_P
DDRAM_DQS_[0]_NDDRAM_DQS_[1]_N
+2V5_AVDD1_MTK
+3V3_USB_MTK
+1V2_CORE_MTK
+1V2_VM12_INT_MTK
+1V35_PROC_MTK
+1V2_VLPDDR2_MTK
+1V2_VLPDDR2_MTK
VBATT
VBATT
VBATT
VBATT
+3V3_eMMC_MTK
DDRAM_CLK_EN
DDRAM_DATA_[0]
+1V8_VRF_MTK
RTCCLK_D
eMMC_CMD
PWR_ON_SW_N
VTREF
PCB_REVISION
eMMC_DATA[0]eMMC_DATA[1]eMMC_DATA[2]eMMC_DATA[3]eMMC_DATA[4]
eMMC_DATA[6]eMMC_DATA[5]
eMMC_DATA[7]
+0V6_VREF
+0V6_VREF
VAPROC_FB
+2V5_AVDD2_MTK
AVDD18_DIG
AVDD18_DIG
BATT_TEMP_ADC
VCHG_LDO_4V9
+3V0_TOUCH_MTK
+3V0_LCD_VCI_MTK+1V8_LCD_VIO_MTK+3V0_VIBR_MTK
FGN_IC
+3V3_MICRO_SD
2.035714
1.425
0.911224
0.605906
0.457053
0.305357
R2
ADC
ADCValue[V]
100K
47K
27K
19.1K
12K
5.6K
R2
100K
R1
1.2
1.1
1.0
C
B
A
EVB
Revision
PCB Revision
100K
100K
100K
100K
100K
100K
250K
R1
3.3V,100mA
1.8-2.8V,2mA
2.5/2.8V,100mA
1.3-3.3V,100mA1.3-3.3V,300mA1.3-3.3V,200mA
1.5-2.8V,200mA
1.3-3.3V,100mA
1.3-3.3V,400mA1.3-3.3V,200mA1.3-3.3V,100mA1.8/3.0V,100mA
2.8V,100mA1.8-2.5V,100mA
2.8V,40mA2.85V,200mA
1.2V,360mA0.9-1.2V,300mA
1.2V,300mA
Seperate DC-DC GND to Main GND
1%
1%
1.3-3.3V,200mA
1.3-3.3V,100mA
[8GB eMMC_8Gb LPDDR2] FOR V5
FORPI TEST
0.151136
REV1.0
7/21/2019 diagrama LG prolite -D686
http://slidepdf.com/reader/full/diagrama-lg-prolite-d686 155/214
7/21/2019 diagrama LG prolite -D686
http://slidepdf.com/reader/full/diagrama-lg-prolite-d686 156/214
- 156 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
Z D 5 0 1
2
1
0 C511
R 5 1 8
0
0
R517
0
R502
2
1
C524
1u
C 5 2 0 1 u
1uC518
1uC521
C519 1u
2.2u
C517
VBATT
F B 50 5 6 0 0
600FB506
Z D 5 0 3
2
1 Z D 5 0 4
2
1
C527
33p
C528
33p
FB507
1800
C525
33p
C526
33p
CN501
2
1
C535
1u
1 2
VBATT
VBATT
2.2u
L501
21
U503D4 D3
D2D1
C4
B4
B3 A4
A2
B2C1
A1
B1
C2
A3
C3
S G N D
OUTL
H P V S S
GND
E N
CPN
CPP
V D D
INL-
HPVDD
INL+
INR+
HI-Z
GAIN
OUTRINR-
C502
10uC504
10u
DNIC512
100n
L504
2
1
10R511
R512 10
Z D 5 0 6
21 Z D 5 0 5
21 Z
D 5 0 7
2
1 Z D 5 0 8
1
4 7 0 K
R 5 0 7
1
2
1800FB508
+1V8_VIO_MTK
1800FB509
R 51 5 0
F B 5 11 1 8 0 0
L503 100n
C 5 0 9 0
F B 5 1 0 1 8 0 0
MIC501
4
3
2
1P
G1
G2
O
33p
C531
C529
DNI
33p
C530
2.2K
R509
10u
C501
C503
10u
10K
R50621
C516
33p
60FB501
FB503 60
33p
C513
R 5 0 8
1 . 5 K
33p
C514
C515
33p
+1V8_VIO_MTK
1 0 0 K
R 5 0 5
2
R 5 0 3
D N I
2
VA501
2
1
2.2u
C523
60FB504
R513DNI
1
J501S/W_Detect
SPK_L
SPK_R
MIC
GND
C522
1u
F B 50 2 6 0
L502
2.2u21
U501
D1
D2
D4
D3
B4
A4
B2B3
A3 A2 A1
C4
C3
B1
C1
C2
G N D 2
OUT-
OUT+
END
G N D 3
P V D D
P V O U T
S W
AGCGAIN
G N D 1
V B A T
IN-
ENB
IN+
G N D 4
U502
D1
D2
D4
D3
B4
A4
B2B3
A3 A2 A1
C4
C3
B1
C1
C2
G N D 2
OUT-
OUT+
END
G N D 3
P V D D
P V O U T
S W
AGCGAIN
G N D 1
V B A T
IN-
ENB
IN+
G N D 4
47nC506
C505 47n
C 5 0 7 4 7 n
D 5 0 1
2
1
47nC508
C533
47p1
2
47p
C534
1
2
Z D 5 0 2
2
1
R 5 14 0
R516
47K21
C 5 1 0 D N I
EARMIC_BIAS
HOOK_DETECT
MIC2_P
HPH_R
HPH_R
HPH_L
HPH_L
Headset_AMP_EN
FM_RX_IN_N
SPK_RN
SPK_RPSPK_LP
SPK_LN
EARMIC_P
EARMIC_N
HP_AMP_SGND
H P
_ A M P
_ S G N D
RCV_P
RCV_N VMIC
SPK_AMP_R_EN
SPK_AMP_L_EN
EAR_R
EAR_R
EAR_L
EAR_L
FM_ANT
HS_JACK_DET
MIC2_N
Contact Type
Receiver
RevB1800 -> 600
Sub Micchanged to BSE
D-Class DUO Speaker AMP
Cutoff Freq. 320Hz, 15.5dB Gain
Close to 3.5pi ear-jack
3.5pi Ear Jack Connector
LOW
HIGH(DEFAULT)
STATE
UNMATING
HS_JACK_DET
AUDIO
MATING
MAINGND
7/21/2019 diagrama LG prolite -D686
http://slidepdf.com/reader/full/diagrama-lg-prolite-d686 157/214
- 157 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
R 6 0 1
3 . 3
2
1+3V0_SENSORS_MTK
C 6 2 8
4 . 7
u 2
1
R628
021
0
R62721
U608RP101K282D
5
3 24 1
VOUTVDDGNDCE
P G N D
1 n
C 6 1 7
0 . 1
u
C 6 1 4
L602
1u
V B A T T
R 6 2 1
4 7 m
V C H G
_ O V P_ I N
1 u
C 6 2 3
1 u
C 6 2 4
+ 1 V 8
_ V I O
_ M T K
C 6 1 6
1 u
C 6 2 5
4 . 7
u
2 . 2
u
C 6 1 5
2 . 2
u
C 6 2 6
4 . 7
K
R 6 1 9
V C H G
_ L D O
_ 4 V 9
U606
C5
D2
D3
D1
A5
B5
A1
C1
B1
A4 A3
A2
D5
D4
C4
C3
C2
B2
B3
B4 I2CIN
IRQB
LX2
BST
GND
SCL
SFO
AVL
PG2VICHG
CS
LX1
BYP
PG1
THM
BAT
DC1
PVL
DC2
SDA
+1V8_VIO_MTK
U607
5
3241 OUT VDD
GND NC
P G N D
100n
C627
VB601
2
1
D 6 0 2
20
R616
R615
20
C613
1u
L 60 1 1 8n
1
R 6 2 4
0
2
1
300
R61221
Q601
12
3
1 0 0 K
R 6 1 0
2
1
VA602
LD601
2
1
R 6 1 3
1 K
21
+2V8_IrRC_LDO
+2V8_IrRC_LDO
ZD601
U605
435261 B C
G N D V C C
A Y
+2V8_IrRC_LDO
R 6 1 4
1 K
21
C 6 1 1
4 . 7
u 2
1
TP607 1
Q602
12
3
C612
0.1u
1
2
+1V8_VIO_MTK
1K
R61821 R620
20m
1u
C62047uC621
1 0 0 K
R 6 1 7
2
1
R 6 2 2
4 . 7
K
R623
100
47p
C618
6.8p
C619VA601
ZD602
C N 6 0 1
6
4
3
2
15G1
G2
R608
100K2 1
U6042
5
1 4
1
1 3
10
11
6
3 9
8
1 2
4
7
G N D 2DRDY
C S B
VDD
GND3INT2
G N D 1
SCK
VDDIO
P S
SDO S D I
I N T 3
INT1
+1V8_VIO_MTK+3V0_SENSORS_MTK
100n
C610
1
2
C609
100n1
2
U603
9
3
54
6
72
81S DA V DD
I NT S CL
GND
L E DK L E DA
LDR
NC
1 0 K
R 6 0 3
2
1
C607
2.2u1
2
C 6 2 2
1 u
1
2
VBATT
1u
C629
12 C630
1u1
2
+1V8_VIO_MTK
I2C_SENSOR_SDA
I2C_SENSOR_SDA
I2C_SENSOR_SCL
I2C_SENSOR_SCL
I2C_COMMON_SCL
I2C_COMMON_SDA
3AXIS_INT
COMPASS_DRDY
HALLIC_INT
LINE_OUT_IRRC
BATT_ID_PULLUP
VBATTVTREF
BATT_TEMP_ADC
CHARGER_IRQ_B
+3V0_VIBR_MTK
IRRC_TX
PROX_INT
BATT_ID
FGN_IC
IrRC_LDO_EN
SWITCHING CHARGING IC
10V
HALL IC
NON Q-COIN
MOTOR
IRRC LED
2mm
Battery Conn.
For MTKFuelGauge
1.2V
6 AXIS SENSOR
SENSOR
PROXIMITY SENSOR
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- 160 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
33nL1002
21
L 1 00 4 3 3 n
21
33nL1003
21
C 1 0 0 0 5
1 0 0 p 1
2
VA1001
0
2
1
L 1 00 1 3 3 n
21
D10002 2
1
VA1000
2
1
C10004
0.5p1
2
VA1002
2
1
SW10001
31
2G1
ANT G2
D10003 2
1
D10004 2
1
D10005 2
1
D10006 2
1
D10007 2
1
C10003 6.8p
1 2
VCHG_OVP_IN
22pC10000
1
2
MIC10000
4
3
2
1P
G1
G2
O
FL10000
4231
I N O UT
GND1 GND2
C10002
DNI1
2
100
R1000521
100
R1000321
100
R1000021
100
R1000421
CN1001
1615
1714
1813
1912
2011
2110
229
238
247
256
265
274
283
292
301
R10002
10021
100
R1000121
LD10001
EAV62094101CL-425F-UCC-SD-TS
1
3
4
2
LD10000
1
3
4
2
ANT100021FEED
ANT100001
FEED
ANT100031
FEED
SW10000
4
2
3
1
CN10000
11
10
9
5
4
3
2
1
8
7
6
ANT100051
FEED
ANT100041
FEED
D10001
2
1
ANT100011
FEED
VCHG_OVP_IN
LED_R
LED_R
LED_G
LED_G
LED_B
LED_B
MIC_N
MIC_N
USB_ID
USB_IDUSB_DN
USB_DN
USB_DPUSB_DP
GND
SPK_LP
SPK_LP
VMIC
VMIC
MIC_P
MIC_P
KROW1_F
KROW1_F
KCOL1_F
KCOL1_F
SPK_LN
SPK_LN
SPK_RN
SPK_RN
SPK_RP
SPK_RP
FPCB_LOWER_ CONNECTOR
Main MIC SPEAKER1
For Single SIM
2mm
uUSB 5 pin connector
EAB62830401
MAIN_FRONT_END RGB_LEDHOMEKEY
SPEAKER2
[FPCB Module-LOWER]
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7. BGA PIN MAP
- 161 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
7. BGA PIN MAP
U101 MT6162 (Transceiver)
Not Used
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7. BGA PIN MAP
- 164 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
U804 MT6329 PMIC
Not Used
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LGE Internal Use Only
8. PCB LAYOUT
A
V
18
AD
1
5
A
B
C
D
E
F
G
H
J
K
L
M
N
T
R
P
U
VW
Y
110
1 4 A
E
A
N
1
13
30
AK
C202
C404
C526
C812
U101
ZD601
C226
C223
R210
C237
C 8 5 0
L114
C243
C 8 3 8
C430
TP802
F L 8 0 1
Z D 7 0 1
R 1 1 1
C 1 5 6
C247
C 2 1 9
TP809
R619
L 8 0 2
S C 2 0 5
D401
S W7 0 3
C 1 3 2
R516
C607
C220
R 3 0 4
L118
L 1 0 1
U605
C 6 2 9
TP806
R214
L105
ANT701
C717
F B 5 0 5
TP811
C829
C421
C 2 5 7
C 1 4 0
C 2 4 1
R503
L 1 2 4
R110
D708
D703
U406
C627
C 5 3 3
R106
C203
C135
R109
C517
LD601
C420
C108
C429
C 6 1 4
L 1 2 0
L106
C234
R 1 0 5
X 2 0 1
C712
C 1
5 9
C163
S C 2 2 1
ANT702
C 8 1 6
C 2 0 7
C 1 4 1
L 1 2 5
C 2 4 4
L115
Z D 5 0 1
C127
TP807
C 5 2 7
C617
C 1 8
0
SC206R310
C 1 1 2
C227
C 1 6 7
D709
C 8 3 9
C 1 5 1
C 5 2 8
C314
R 3 0 5
C 3 1 0
R413U408
C 1 4 4
C 4 0 8
L 8 0 1
C307
R 8 0 5
C236
C415
FB507
C 1 7 7
U102
Z D 5 0 8
C 1 4 3
C814
L402
VA501
C126
FL104
C315
L 1 2 6
C101
U 6 0 6
C225
C 1 5 2
R 2 0 6
ZD503
R 5 0 2
L 1 2 8
C128
R307
C259
C245
Z D 5 0 6
R 6 1 4
L 1 3 4
C 2 6 1
L 8 1 0
C 5 3 1
C150
C417
C233
L 1 3 6
C 1 7 5
L401
L131
R203
R 8 0 4
C 5 1 8
R 5 1 2
C 5 2 1
C409
C251
C 1 6 6
C229
L 1 3 2
D706
U301
D602
R 5 1 1
TP803
C 8 3 3
C522
C 1 1 3
C 1 2 1
L 8 0 4
FL103
L 5 0 4
C306
R624
C 3 0 9
VA401
L102
C403
C626
L403
R306
SC211
U 1 0 3
C134
C 1 2 4
L 1 2 7
C222
FL106
C214
R 1
0 4
C 6 1 3
L 1 3 3
MIC501
R515
V A 6 0 2
C416
C173
C228
C 5 2 5
C235
R 4 0 1
R711
C 6 1 5
C 1 3
3
TP813
C 1 3
8
C254
Z D 5 0 7
TP804
R 5 0 6
L 8 0 8
C 5 2 9
R603
F B 5 0 6
C 3 1 9
C 1 5 8
C 1 7 6
U 6 0 3
U104
Q 6 0 1
C 8 3 4
C 1
8 2
U 4 0 2
R405
C105
R313
S W7 0 2
C204
C311
U 6 0 7
D707
D705
SC203R208
C 1 6 1
C 2 4 2
R415
U802
R507
U404
R 2 0 1
C 8 5 4
C107
L103
C623 C 6 2 4
TP805
U403
C 2 4 0
SC209
C 4 0 6
R508
L 1 2 2
L 8 0 3
C255
C205
R712
C316
C 1 4
8
C232
C106
R215
SC212
C 8 4 9
C 2 0 8
C164
F L 1 0 1
C 1 8 1
S C 2 0 7
L 1 1 7
C535
C213
R314
F B 5 1 0
R 1 0 1
C418
R 1 0 2
C 1 7 8
C 8 2 5
F B 5 0 8
C 3 0 4
X101
C250
R 6 2 1
C303
L121
C523
C611
R 1
0 3
C714
C 8 1 5
U 6 0 8
C 2 4 9
C 8 0 5
R404
C 1 4 6
R308
L 6 0 1
C246
F B 5 1 1
C612
R409
C 8 1 8
C 2 1 2
U405
R 2 0 7
C622
ZD504
C210
C109
F L 8 0 2
C201
R613
C 1 5 5
C102
C716
Z D 5 0 5
C231
C115
C230
C719
R312
C 6 1 6
U503
C 1 5 3
R601
L503
R 3 1 5
C 3 1 8
D704
R615
C413
C252
C 8 3 5
C 1 4 9
C103
L135
U801
C160
C 2 5 8
R 7 0 6
C 5 2 0
R 8 0 3
R211
S C 2 1 0
C 2 1 5
C104
C 1 2 0
C 8 2 4
R612
C 8 1 1
C224
C 1 6 5
R204
C129
TP607
R 2 1 2
C 2 1 8
C853
L 1 1 0
C 6 2 8
F B 5 0 9
C123
C 3 0 1
C 1 6 2
R 3 0 3
C830
C 1 5 4
SC201
C 1 1 9
L129
C 1 1 7
L 1 1 3
FB702
C239
L112
C221
FL102
C 1 8 3
C428
U407
C 8 4 4
R616
R505
C 8 1 9
C238
C 5 3 4
R414
R323
R107
FL105
R801
C 1
5 7
C256
R 5 1 4 PID1
C 1 2 5
R205C172
C 6 3 0
C713
C 1 7 9
TP301
C 2 0 9
L130
C 1 7 4
R 2 1 7
C317
C412
S C 2 0 2
R311
U201
FB701
R 2 1 6
C 8 2 1
C206
C253
C139
C 1
3 1
C 2 1 7
C 2 1 6
R213
C 1 3 7
C 1 6 9
C122
C 1 4
5
R309
C 1 3 0
D 5 0 1
VB601
C 5 1 9
C312
R 8 0 2
TP808
C211
R407
R517
C 3 0 2
R 5 1 3
C 1 6 8
C625
L123
C 2 6 0
R108
S W7 0 1
ZD502
L 1 1 9
SC204
C 3 0 5
C313
PT101
R610
C 1 1 8
R 5 0 9
R202
R209
R 5 1 8
C 1 4 2
C530
C 2 4 8
L 6 0 2
Q602
C524
C171
C 1 1 4
8. PCB LAYOUT
LG-D686_MAIN_EAX65429401_1.0_TOP
Model name : MT6620 (U801)Function : WIFI & BT- no WIFI & BT
Model name : 1XXA26000FTA (X101)Function : 26Mhz clock - no booting,
- no RF
Model name : SKY77758 (U103)Function : 3G PAM (Band1/Band5)- no Service
Model name : SKY77589 (U102)Function : GSM PAM- no Service
Model name : MT6162 (U101)Function : RF transceiver- no Booting,- no Service
Model name : SKY77758 (U104)Function : 3G PAM (Band1)- no Service
Model name : MOC-C110R38(MIC501)Function : MIC- no voice sound
Model name : APDS-9130-200 (U603)Function : Proximity sensor- no proximity
Model name : ALM2412 (U802)Function : GPS
- no GPS
Model name : H9TP32A4GDBCPR-KGM(U301)Function : Memory- no Booting
Model name : MT6577 (U201)Function : Baseband- no booting,- no function
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9. CALIBRATION
- 167 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
9. CALIBRATION
This document is draft version, so the contents will be updated after registering the nal one.
CAL INFORMATION
S/W VERSION
Please Check the Version to “B2B”
H/W
Name Part No.
PIF PIF200(All Type) BJAY0024021
USB Cable USB Cable RAD32247898
Power Cable DC Power Cable RAD32247878
I/O Cable
RF Cable_Main
Power Supply_PIF Power Supply 5.3V
Power Supply_Phone Power Supply 5.0VRF Test Equipment E5515C(8960)
NOTICE
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9. CALIBRATION
- 170 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
LGD686
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9. CALIBRATION
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LGE Internal Use Only
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9. CALIBRATION
- 173 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
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9. CALIBRATION
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LGE Internal Use Only
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9. CALIBRATION
- 178 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Tac h on 36_
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9. CALIBRATION
- 179 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
5.0V
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9. CALIBRATION
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LGE Internal Use Only
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9. CALIBRATION
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LGE Internal Use Only
D686
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9. CALIBRATION
- 183 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
LGD686
LGD686LGD686LGD686LGD686LGD686LGD686
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9. CALIBRATION
- 184 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
D686
D686
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9. CALIBRATION
- 185 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MS695
RF900
D686
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10. HIDDEN MENU
- 187 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Auto All Test Result:
-> Display Auto All Test result
AutoDetecting Test
: USIM, SD card, Ear jack, Battery• Check the SIM1 card• Check the SIM2 card• Check the SD card• Check Ear phone(jack)• Check Battery
- Ejected ear jack is normal
Key/Compass Test
Memo key : Check RecognitionUp/Down key : Check RecognitionMenu key : Check RecognitionHome key : Check RecognitionBack key : Check RecognitionSIM_SWITCH key : Check RecognitionEnd key : Check recognitionPhone contact with your ngers in the top of the sensor determine the sensorresponse- Far- Near
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10. HIDDEN MENU
- 188 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Camera Test 1Main Camera Preview
Camera Test 2Camcorder Preview
Display check Test
: LCD Black & White test• Check the Black display• Check the White display
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10. HIDDEN MENU
- 189 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Ring Test: Check sound• Check the sound
Vibrator testA case-by-state vibration tests
Touch window testWrite with nger
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10. HIDDEN MENU
- 192 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
SW Sanity Test:FPRI Test :Compare andCreate logt.txtCRC Test : EFS
CRCEFSCRCDetail
DB Check :DB Check andCompareDB Dump
Device Test- Auto Detecting Item- LCD- Keypad- Touch- Audio
- Vibrator- Camera- Sensor- External Memory- GPS- RTC- Battery- ETC
AutoDetecting Test: USIM, SD card, Ear jack, Charing Mode• Check the SIM card• Check the SD card• Check Ear phone(jack)• Chck Barometer : N/A
- Ejected ear jack is normal
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10. HIDDEN MENU
- 193 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
LCD Test List
H/W LCD Test(Manual) : Click on the following screen
H/W LCD Test(Auto) : Automatically, without clicking
Manual Test : Click on the following screen
Automatic Test : Automatically, without clicking
LCD Q Test(Not Implemented)
LCD Module Test
LCD Display Test
Mura Test : leakage of Light uniformity
Keypad test list- Dop- Qwerty
Touch test list- Finger Paing- Grid Touch Test- Grid Touch Color Change- Block Touch Test- Circle Touch Test- Pinch In/Out Test- Touch Key Test- Firmware Version
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10. HIDDEN MENU
- 195 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Camera test list- Proximity- Motion Sensor- Compass
External Memory test list- SD Card Status- SD Card Mount Status- Directory Creation in SD Card- File Creation in SD Card
- File Modication in SD Card- File deletion in SD Card
GPS BT WI-FI Test• Check the GPS scanning• Check the GLONASS scanning• Check the WIFI scanning• Check the BT scanning
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10. HIDDEN MENU
- 197 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Settings- Version Info- ALC- Auto run- Diag Settings- Data Settings- Battery- Audio- Camera- Bluetooth- ERS- ETC- LCD Always On
Version Info(Classied Information representation)- SW Version Info- Firmware Version- Baseband Version
- Kernel Version- HW Version- Factory Version- Touch Firmware Version- Build nger print
ALC
Normal Mode : Change to Normal ModeALC Mode : Change to ALC Mode
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10. HIDDEN MENU
- 198 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
AutoRunSwitch to AutoRun Enable or Disable
Diag Settings- USB Set for Diag- UART Set for Diag- Null port
Data Settings- USB Set for Data- BT Set for Data- UART Set for Data- Null port
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10. HIDDEN MENU
- 199 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Battery- Charging Bypass Boot-> Change to Pseudo LT Mode/Normal Mode- Battery Fake Mode(On/Off)
Audio- Get Service Type- Audio Settings
- > Normal Mode- > Headset Mode
- > LoudSpeaker Mode- > Speech Enhancement- > Debug Info- > Speech Logger- > Audio Logger
Camera- Camera Clock Settings
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10. HIDDEN MENU
- 200 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Bluetooth Settings
ERS Settings- Client Status- ERS Test
ETCADC Info
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10. HIDDEN MENU
- 201 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
LCD Always OnSwitch to LCD Backlight ON/OFF
WCDMA Only test list
- Factory Reset
- Modem Settings
- Module Test
- SIM Test(Not Implemented)
- Call Test
- Streaming
- WAP Debug
- FM Radio Test(Not Implemented)
- DRM Test
- Contacts Test
- Log service
- Flex test
- SMPL Counter
- North America APN Settings
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10. HIDDEN MENU
- 202 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Factory Reset:- Format SD card : External SD Card Data reset- Factory Rest :Changing the Factory- Delete Userdata: Userdata reset
Modem SettingsEnter to EngineerModeEngeinnerMode List- Telephony- Connectivity
- Hardware Testing- Location- Log and Debugging- Others
Telephony- BandMode- BSPTelephonyDevTool- Dual Talk NetworkInfo- Modem Test- Network Setting- GPRS- Fast Dormancy- Simme Lock
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10. HIDDEN MENU
- 203 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
Connectivity- Bluetooth- FM Receiver- FM Transmitter- WiFi- CDS Information
Hardware Testing- Audio- Camerea- CPU Stress Test- Display
- IO- Memory- Power- SD Card Test- TouchScreen- USB
Location- Location Based Service- YGPS
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10. HIDDEN MENU
- 209 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
MLT
MLT HIDDEN Menu
LG RCT Test
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11. DISASSEMBLE GUIDE
- 211 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
2. Disassemble Main PCB
Remove FPCB CONNECTOR 5EA and COAXIAL CABLE CONNETOR from PCB
Remover 4 Point Screws From Main Ant
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11. DISASSEMBLE GUIDE
- 212 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
3. Disassemble H/W ITEM
Remove Main Ant and Cap Receiver Assy, VT Cam, Main Cam, Motor, Earjack, Rf Cable
Remove 2 Screws From Lower Fpcb
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11. DISASSEMBLE GUIDE
- 213 - Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes
LGE Internal Use Only
4. Disassembled Components