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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 Specications............................................................................................5
2. PERFORMANCE.................................................................... 10
2.1 Product Name......................................................................................... 10
2.2 Supporting Standard........................................................................... 10
2.3 Main Parts : Main Chipset Solution................................................ 12
2.4 HW Features ............................................................................................ 12
2.5 SW Features............................................................................................. 15
3. TROUBLE SHOOTING .......................................................... 29
3.1 Checking XO Block................................................................................ 29
3.2 Checking Transceiver DC Power Supply Circuit Block............ 31
3.3 Checking DC-DC Block........................................................................ 33
3.4 Checking FEMiD Block (GSM, W B1/2/5/8, LTE B1/2/3/7/8/20)
.............................................................................................................................. 35
3.5 GSM RF Part ............................................................................................. 37
3.6 WCDMA RF Part...................................................................................... 49
3.7 LTE RF Part................................................................................................ 65
3.8 BT&WIFI PART.......................................................................................... 92
3.9 GPS Part..................................................................................................... 96
3.10 Power.....................................................................................................102
3.11 Charger .................................................................................................106
3.12 Audio .....................................................................................................109
3.13 LCD .........................................................................................................122
3.14 Touch .....................................................................................................124
3.15 Sensor....................................................................................................126
3.16 USB .........................................................................................................130
3.17 Camera..................................................................................................132
4. DOWNLOAD.......................................................................135
5. BLOCK DIAGRAM...............................................................152
6. CIRCUIT DIAGRAM ............................................................160
7. BGA PIN MAP ....................................................................181
8. PCB LAYOUT.......................................................................186
9. CALIBRATION.....................................................................190
10. HIDDEN MENU................................................................. 209
11. DISASSEMBLE GUIDE......................................................217
12. EXPLODED VIEW & REPLACEMENT PART LIST .............221
