- 2 -
Copyright © 2014 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 & Solution .............................................................................6
2.4 HW Features ...............................................................................................6
2.5 SW Features ................................................................................................7
2.6 H/W SPEC. ................................................................................................. 12
3. TROUBLE SHOOTING .......................................................... 21
3.1 WCDMA Rx Part ...................................................................................... 21
3.2 WCDMA Tx Part ...................................................................................... 33
3.3 GSM Rx Part ............................................................................................. 49
3.4 GSM Tx Part Troubleshooting ........................................................... 59
3.5. BT/WiFi ...................................................................................................... 67
3.6. GPS ............................................................................................................. 69
3.7. FM Radio .................................................................................................. 72
3.8 DTV .............................................................................................................. 74
3.9 Power TS .................................................................................................... 76
3.10. Charging TS .......................................................................................... 80
3.11. USB TS ..................................................................................................... 82
3.12.USB TS ...................................................................................................... 83
3.13. Accelerometer & Compass Sensor on/off TS .......................... 99
3.14. Proximity Sensor on/off TS ...........................................................100
3.15. Touch Sensor Trouble Shooting .................................................102
3.16. Vibrator Trouble Shooting ............................................................104
3.17. 8M Main Camera TS ........................................................................106
3.18. VT Camera TS .....................................................................................108
3.19. Main LCD TS .......................................................................................110
4. DOWNLOAD .......................................................................112
5. BLOCK DIAGRAM ..............................................................129
6. CIRCUIT DIAGRAM ............................................................141
7. BGA PIN MAP .....................................................................158
8. PCB LAYOUT .......................................................................178
9. CALIBRATION .....................................................................182
10. HIDDEN MENU .................................................................200
11. DISASSEMBLE GUIDE ......................................................235
12. EXPLODED VIEW & REPLACEMENT PART LIST .............242
