Post on 04-Jan-2016
description
Service Manual Service Manual
Model : KKT27
Tech. Name:
Content
Specification
Method of SW Download
Circuit Description
Trouble Shooting
* Baseband Section* RF Section
* Main Board* Trouble Shooting
* Phone layout* Icons Status of KKT27 LCD* H/W Features * S/W Features
TEST Mode
Specification
* LCD Screen Display : Main : QVGA 2.8" TFT* Sub LCD Screen Display : N/A * Antenna : Internal (900/1800)* Camera: Camera 0.3M
SpecificationPhone layout -1Phone layout -1
SpecificationPhone layout -2Phone layout -2
Specification
Icon Description
Signal Strength : Shows the strength of the receiving signal. The greater the number of bars,
The better the signal strength
GPRS : Shows the strength of the receiving GPRS signal. The greater the number of bars, the better the signal strength.
GPRS Connect : Appears when you connect to GPRS.
Roaming : Appears when the phone is roaming
L1,L2 : Some SIM cards support two phone numbers and you can switch the number with this feature. The phone will display this icon when you set a line
Missed Calls : Appears when there is missed call (s)
New Message : Appears when a new incoming text message is arrived and unread
MMS Unread : Appears when a new MMS message is arrived and unread
MMS Busy : Appears when MMS is busy, such as receiving and sending a message
Broadcast Message : Appears when Broadcast Message receive mode is active
WAP Mail : Appears when WAP mail is arrived
Call Barring On : Appears when the call barring mode is active
Icons Status of SL388 LCD -1Icons Status of SL388 LCD -1
Specification
Icon Description
Call Forward : Appears when the call forward mode is active.
IrDA : Appears when the IrDA port is activated.
Ring : Appears when the Ring mode is active.
Vibrate and Ring : Appears when the Vibrate and Ring mode is active.
Vibrate then Ring : Appears when the Vibrate then Ring mode is active.
Vibrator On : Appears when the Vibration mode is active.
Silent Mode : Appears when the silent mode (manner mode) is active
Alarm On : Appears when you set the alarm.
Stopwatch : Appears when you set the stopwatch.
Lock : Appears when you set the phone lock.
Battery Strength : Shows the level of your battery. The more bars you see, the more power you have left
General : Appears when you set the sound & Light profile as General.
Meeting : Appears when you set the sound & Light profile as Meeting.
Icons Status of SL388 LCD-2 Icons Status of SL388 LCD-2
Specification
Icon Description
Outdoor : Appears when you set the Sound & Light profile as Outdoor.
Indoor : Appears when you set the Sound & Light profile as Indoor.
Headset : Appears when you set the Sound & Light profile as Headset.
Icons Status of SL388 LCD -3Icons Status of SL388 LCD -3
Specification
Feature Description
Dimension
Main LCD 2.8 TFT LCD (320x240)
Sub LCD N/A
Camera 0.3M
Flash Light No
Speaker Stereo (Single Speaker)
Vibrator Built – in vibrator
Antenna Internal
Phone Memory Internal : 64 MB
SIM 2.8V
BlueTooth Bluetooth V2.0 with EDR
FM Radio Recode Format : WAR,AMR
Data USB Connection and PC Link Manager
microSD
(T-Flash Card)%Use only genuine microSD(T-Flash) cards approved & specified by the SD card Association and SanDisk
H/W FeaturesH/W Features
Specification
Feature Description
RF GSM900 ,DCS1800 ,
GSM/GPRS GSM Phase 2 + Class 10 GPRS
Message MMS / EMS / SMS
WAP WAP 2.0 (Obigo Browser)
DRM DRM 1.1
Text Input T9 Intelligent Text Input
Camera 0.3m Camera
Video Video Record & Play ( MJpeg)
Wallpaper Pictures and user definable JPG, GIF, BMP
Sound 64 Polyphonic True Sound MIDI, iMelody, WAV, MP3
Games big tow 、 sokoban 、 tetris
TV – Out NO
Phonebook 500 ~ 1000 of Phonebook
ToolsCalendar, To-Do List, Alarm, Schedule Power On/Off, World Clock
Calculator, Unit Converter, Currency Converter, Health, Stopwatch
S/W FeaturesS/W Features
Calibration Data Upload (1)
Calibration Phone (1)
Circuit Description (Baseband Section)1. SC6531(GSM/GPRS Base band Processor)1. SC6531(GSM/GPRS Base band Processor)
Circuit Description (Baseband Section)
SC6531
Circuit Description (Baseband Section)
Circuit Description (Baseband Section)
3. 3. MX25U6435EZNI-10GMX25U6435EZNI-10G(64NOR Flash memory)(64NOR Flash memory)
Circuit Description (RF Section)
1. SC2661D (RF PA)1. SC2661D (RF PA)
Trouble Shooting
Main Board
Bottom Surface ComponentBottom Surface Component
Main Bord
Top Surface ComponentTop Surface Component
PCB LAYOUT (TOP – Reference)
PCB LAYOUT (Bottom – Reference)
Trouble Shooting1. Power on Repair chart1. Power on Repair chart
1. Check VBAT(3.8V) .
2. Check Voltage out .
If not ,Check the U0100 Defective or Cold solder
VSIM 1.8V/3.0V – C0231/C0230VMEM 1.8V- C0222VMEM_SPI 1.8V - C0221VCAM_ANA_2V8 2.8V – C0227VCAM_CORE_1V8_B 1.8V -C0226VDDIO_2V8 2.8V- C0223VDDSD 2.8V- C0228VDDRF 2.8V- C0206
3. Check the Output 26MHz Crystal (X0601)
If not ,Check the U0100 Defective or Cold solder
5. Re download
If not . Change CPU (U0100)U100
U201
U500
OCS100
U500 U100
CON10
Trouble Shooting2. LCD Dead Repair chart (1)2. LCD Dead Repair chart (1)
1. Check the Connector LCD FPC,LCD
If not , Change the F-PCB,LCD
2. Check Voltage out . C0223(2.8V) or LCD 6PIN,7PIN
3. Check the EMI Filter data line. DB0~ DB7
If not ,Check the DB0 ~ DB7 Defective or Cold solder
and CPU (U0100) Defective.
U500 U100
U700
Trouble Shooting3. LCD Dead Repair chart – Touch Pannel (2)3. LCD Dead Repair chart – Touch Pannel (2)
1. Check the ,B’d To B’d FPCB,LCD Module
If not , Change the F-PCB,LCD
2. If not ,Check the U0100 Defective or Cold solder
Trouble Shooting4. SIM Error Repair chart4. SIM Error Repair chart
1. After insert SIM ,Check the LCD Display.
2. Check the voltage out. CONN. 1/6/11/16 PIN
(1.8V/3.0V)
If not ,Check the U0100 Defective or Cold solder.
U300
Trouble Shooting
1. Check the speaker Spring state on Rear Cover
If not good, Change the Speaker
2. Check the U0100
5. Melody Dead Repair chart5. Melody Dead Repair chart
CON130
Trouble Shooting
1. Check the MIC. MIC1
If not ,Check the MIC1 Defective or Cold solder.
2. Check the MICBIAS. R0501(1.9~2.3V)
If not ,Check the U0100 Defective or Cold solder
3. Check the B0507, B0508 solder state.
If not ,Check the C0501, C0502 Defective or Cold solder
6. Audio Dead Repair chart - (1)6. Audio Dead Repair chart - (1)
Trouble Shooting7. Vibrator Dead Repair chart 7. Vibrator Dead Repair chart
U300
1. Check the Vibrator wire.
If not , Re-solder or Change
2. Check the U0100 Signal If not , Change the CPU (U0100)
Trouble Shooting8. Camera Dead Repair chart 8. Camera Dead Repair chart
U3001. Check the connector state or camera module.
If not ,Change the camera module
2. Check the DATE. CCIR_D00-SCCIR_D07
If not ,Change the U0100
3. Check the voltage. J861 6PIN (2.8V),95IN (1.8V)
If not ,Check the U0100 Defective or Cold solder
4. Change the CPU. U0100
Trouble Shooting9. T-Flash Card Dead Repair chart 9. T-Flash Card Dead Repair chart 1. Check the T-Flash connect state.
If not Good, Change the T-Flash connect.
2. Check the voltage. C0228 (2.8V)
If not ,Check the U0100 Defective or Cold solder
3. Change the CPU. U0100
Trouble Shooting
1. Check the Battery connector state.
If not ,Check the Battery Connector Defective or Cold solder.
2. Check the voltage.C0391(5.0V)
If not ,Check the T0391 Defective or Cold solder
3. Change the CPU. U0100
10. Charger Dead Repair chart 10. Charger Dead Repair chart
1. Check the Ear-Mic phone connection
If not ,Check the J0881 Defective or Cold solder.
2. Check the L0881/R0882/C1101
If not ,Check the U1101 Defective or Cold solder
3. Change the CPU. U0100
11. FM Receiver Dead Repair chart 11. FM Receiver Dead Repair chart
Trouble Shooting
Deberg Code
Code Test Infomation
1 Auto test
2 Project version
3 audio Test
4 speaker Test
5 Vibrator Test
6 keypad Test
7 Backlight Test
8 Lcd Test
9 Flash light Test
10 SD test
11 camera Test
12 headset Test
13 Fm Radio Test
14 BT Test
Factory ModeTest : *#346#+call+back
Deberg CodeTest Mode
Code Test Information
*#8841#+call SW Version Check
*#06# IMEI Number
Phone Lock Default Number : 1122