Table Of Contents - LG P705 Service Manual

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 .....................................................................6
2.4 HW Features ...............................................................................................6
2.5 SW Features ................................................................................................8
2.6 HW SPEC. ................................................................................................. 11
3. CIC AND SERVICE CENTER .................................................. 19
3.1 CIC FAQ ...................................................................................................... 19
4. TROUBLE SHOOTING .......................................................... 30
4.1 RF Component ....................................................................................... 30
4.2 SIGNAL PATH ........................................................................................... 31
4.3 Checking TCXO Block ........................................................................... 33
4.4 Checking GSM TX Module(GSM PAM + FEM) Block ................ 35
4.5 Checking WCDMA Block .................................................................... 38
4.6 Checking GSM Block ............................................................................ 49
4.7 GPS/WIFI/BT/FMR RF Component .................................................. 56
4.8 GPS/WIFI/BT SIGNAL PATH ................................................................ 58
4.9 GPS/WIFI/BT Trouble shooting ........................................................ 60
4.10 Power ON Trouble Shooting........................................................... 67
4.11 Charging Trouble Shooting ............................................................ 72
4.12 5M Camera Trouble Shooting ........................................................ 75
4.13 VGA Camera Trouble Shooting ..................................................... 78
4.14 Main LCD trouble ................................................................................ 81
4.15 Proximity Sensor on/off Trouble Shooting ............................... 83
4.16 Motion Sensor on/off Trouble Shooting ................................... 85
4.17 Compass Sensor on/off Trouble Shooting ............................... 87
4.19 Audio Troble .......................................................................................... 91
5. DOWNLOAD .......................................................................108
6.Block diagram ....................................................................128
7. CIRCUIT DIAGRAM ............................................................131
8. BGA PIN MAP .....................................................................142
LGE Internal Use Only

Table Of Contents

9. PCB LAYOUT .......................................................................148
10. CALIBRATION ...................................................................156
11. HIDDEN MENU .................................................................176
12. EXPLODED VIEW & REPLACEMENT PART LIST .............182
12.1 EXPLODED VIEW ................................................................................182
12.2 Replacement Parts ...........................................................................183
12.3 Accessory .............................................................................................221
- 2 - Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes