Table Of Contents - LG -D120 Service Manual

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 ......................................................................................................8
3. TROUBLE SHOOTING .......................................................... 20
3.1 WCDMA Rx Part ...................................................................................... 20
3.2 WCDMA Tx Part ...................................................................................... 34
3.3 GSM Rx Part ............................................................................................. 46
3.4 GSM Tx Part .............................................................................................. 58
3.5 Power ......................................................................................................... 66
3.6 Charging ................................................................................................... 71
3.7 USB TS ........................................................................................................ 73
3.8 Audio .......................................................................................................... 74
3.9 3AXIS Sensor ........................................................................................... 86
3.10 Touch Sensor ........................................................................................ 89
3.11 Vibrator ................................................................................................... 91
3.12 Camera .................................................................................................... 93
3.13 LCD ........................................................................................................... 95
3.14 BT/Wifi ..................................................................................................... 98
3.15 GPS..........................................................................................................101
3.16 FM Radio ...............................................................................................105
LGE Internal Use Only

Table Of Contents

4. DOWNLOAD .......................................................................108
5. BLOCK DIAGRAM ..............................................................125
6. CIRCUIT DIAGRAM ............................................................132
7. BGA PIN MAP .....................................................................146
8. PCB LAYOUT .......................................................................152
9. CALIBRATION .....................................................................154
10. HIDDEN MENU .................................................................173
11. DISASSEMBLE GUIDE ......................................................204
12. EXPLODED VIEW & REPLACEMENT PART LIST .............208
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