Table Of Contents - LG -E445 Service Manual

1. INTRODUCTION ..................................................................... 3
1.1 Purpose ........................................................................................................3
1.2 Regulatory Information .........................................................................3
1.3 Specifications .............................................................................................5
2. PERFORMANCE ...................................................................... 8
2.1 Product Name ............................................................................................8
2.2 Supporting Standard ..............................................................................8
2.3 Main Parts : GSM Solution .....................................................................8
2.4 HW Features ...............................................................................................9
2.5. HW SPEC .................................................................................................. 11
2.6 E445 Figures ............................................................................................ 24
3. CIC AND SERVICE CENTER..........................................................25
3.1 CIC FAQ ...................................................................................................... 25
4. TROUBLE SHOOTING .......................................................... 26
4.1 WCDMA Rx Part Troubleshooting ................................................... 26
4.2 WCDMA Tx Part Trouble ...................................................................... 50
4.3 GSM Rx Part Troubleshooting .......................................................... 78
4.4 GSM Tx Part Troubleshooting .........................................................100
4.5. Power ......................................................................................................116
4.6 Charging .................................................................................................121
4.7. USB TS .....................................................................................................123
4.8. Audio TS .................................................................................................124
4.9 6 AXIS Sensor on/off TS .....................................................................134
4.10 Proximity Sensor on/off TS ............................................................137
4.11 Touch Sensor Trouble Shooting ..................................................139
4.12 Vibrator Trouble Shooting .............................................................141
4.13 3M Main Camera TS .........................................................................143
4.14 Main LCD TS ........................................................................................145
4.15 BT/Wifi TS .............................................................................................148
4.16 GPS TS ....................................................................................................151
4.17 FM TS ......................................................................................................154
LGE Internal Use Only

Table Of Contents

5. DOWNLOAD .......................................................................156
6. BLOCK DIAGRAM ..............................................................176
7. CIRCUIT DIAGRAM ............................................................185
8. BGA PIN MAP .....................................................................192
9. PCB LAYOUT .......................................................................198
10. CALIBRATION ...................................................................201
11. HIDDEN MENU .................................................................221
12. DISASSEMBLE GUIDE ......................................................245
13. EXPLODED VIEW & REPLACEMENT PART LIST .............251
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