Table Of Contents - LG GB160 Service Manual

1. INTRODUCTION........................3
1.1 Purpose.......................................3
1.2 Regulatory Information....................3
2. PERFORMANCE.......................5
2.1 H/W Features................................5
2.2 S/W Features................................6
3. TECHNICAL BRIEF..................19
3.1 Digital Main Processor(
3.2 Power Amplifier Module(
3.3 Transceiver Module(
3.4 Memory Module (
3.5 FM Radio Module (Si4708).............34
3.6 Antenna Switch Module (
3.7 LCD Interface...............................37
3.8 SIM Card Interface........................39
3.9 KEYPAD Interface.........................40
3.10 Battery Charging Block Interface....41
3.11 Audio Interface............................42
3.12 Vibrator Interface.........................43
3.13. Key LED Interface......................44
4. TROUBLE SHOOTING.............45
4.1 Power On Trouble........................45
4.2 SIM Card Trouble.........................48
4.3 Vibrator Trouble...........................50
4.4 Keypad Trouble...........................52
4.5 RTC Trouble...............................54
4.6 Key Backlight Trouble...................56
4.7 LCM Backlight Trouble..................58
4.8 LCM Trouble...............................60
4.9 Microphone Trouble.....................62
4.10 Receiver Trouble........................64

Table Of Contents

)..........19
MT6223
).......27
SKY77518
)..............28
AD6548
........31
TV00570002CDGB)
).........36
B9308
4.11 Speaker Trouble...................67
4.12 Headphone Trouble...............70
4.13 Charging Trouble..................73
4.14 FM Radio Trouble.................75
4.15 RF Trouble..........................77
5. DOWNLOAD......................89
5.1 Download setup.....................89
5.2 Download Process..................90
6. BLOCK DIAGRAM...............98
7. CIRCUIT DIAGRMA.............99
8. BGA IC PIN Check............104
9. PCB LAYOUT....................106
10.ENGINEERING MODE.......107
11. CALIBRATION.................111
11.1 Test Equipment Setup..........111
11.2 Calibration Steps.................112
12. STAND ALONE TEST.......151
12.1 Test Configuration...............151
12.2 META tool Install process......152
12.3 Rx Test..............................156
12.4 Tx Test..............................158
13. EXPLODED VIEW&
REPLACEMENT PART LIST....160
13.1 Exploded View....................160
13.2 Replacement Part................162
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