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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
1.3 Specifications .............................................................................................5
2. PERFORMANCE .................................................................... 10
2.1 Product Name ......................................................................................... 10
2.2 Supporting Standard ........................................................................... 10
2.3 Main Parts & Solution .......................................................................... 11
2.4 HW Features ............................................................................................ 12
2.5 SW Features ............................................................................................. 16
2.6 H/W SPEC. ................................................................................................. 19
3. TROUBLE SHOOTING .......................................................... 41
3.1 Checking XO Block ................................................................................ 42
3.2 Checking Transceiver DC Power Supply Circuit Block ............ 43
3.3 Checking DC-DC Block ........................................................................ 45
3.4 ASM(Antenna Switch Module) Block ............................................ 47
3.5 GSM RF Part ............................................................................................. 51
3.6 WCDMA RF Part ...................................................................................... 65
3.7 LTE RF Part ................................................................................................ 83
3.8 BT&WIFI&FM PART ..............................................................................128
3.9 GPS Part ...................................................................................................134
3.10 NFC Part ................................................................................................140
3.11 Power .....................................................................................................143
3.12 Charger .................................................................................................147
3.13 Audio .....................................................................................................149
3.14 LCD .........................................................................................................169
3.15 Touch .....................................................................................................172
3.16 Sensor ....................................................................................................175
3.17 Remote Sensor (IRRC Sensor) ......................................................183
3.18 USB/Slimport ......................................................................................185
3.19 CAMERA ................................................................................................187
4. DOWNLOAD .......................................................................194
5. BLOCK DIAGRAM ..............................................................211
6. CIRCUIT DIAGRAM ............................................................220
7. BGA PIN MAP .....................................................................244
8. PCB LAYOUT .......................................................................263
9. CALIBRATION .....................................................................268
10. HIDDEN MENU .................................................................287
11. DISASSEMBLE GUIDE ......................................................309
12. EXPLODED VIEW & REPLACEMENT PART LIST .............315