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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
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 SW Features ................................................................................................8
2.6 HW SPEC. ................................................................................................. 11
3. CIC AND SERVICE CENTER .................................................. 18
3.1 CIC FAQ ...................................................................................................... 18
4. TROUBLE SHOOTING .......................................................... 25
4.1 RF Component ....................................................................................... 25
4.2 SIGNAL PATH ........................................................................................... 27
4.3 Checking TCXO Block ........................................................................... 30
4.4 Checking GSM TX Module(GSM PAM + ASM) Block ............... 32
4.5 Checking WCDMA Block .................................................................... 35
4.6 Checking GSM Block ............................................................................ 45
4.7 GPS/WIFI/BT RF Component ............................................................ 53
4.8 GPS/WIFI/BT SIGNAL PATH ................................................................ 55
4.9 GPS/WIFI/BT Trouble shooting ........................................................ 57
4.10 Power ON Trouble Shooting........................................................... 63
4.11 Charging Trouble Shooting ............................................................ 66
4. 12 5M AF Camera Trouble Shooting ................................................ 68
4. 13 Main LCD trouble ............................................................................... 71
4.14 Proximity Sensor on/off Trouble Shooting ............................... 73
4.15 Motion Sensor on/off Trouble Shooting ................................... 75
4.16 DC Motor Trouble Shooting ........................................................... 77
4.17 Audio Trouble ....................................................................................... 79
5. DOWNLOAD ......................................................................... 92
6.Block diagram ....................................................................112
7. CIRCUIT DIAGRAM ............................................................115
8. BGA PIN MAP .....................................................................126
9. PCB LAYOUT .......................................................................132
10. CALIBRATION ...................................................................138
11. HIDDEN MENU .................................................................158
12. EXPLODED VIEW & REPLACEMENT PART LIST .............164
12.1 EXPLODED VIEW ................................................................................164
12.2 Replacement Parts ...........................................................................165
12.3 Accessory .............................................................................................202