Table Of Contents - LG -P970 Service Manual

1. INTRODUCTION ..................................................................... 3
1.1 Purpose ........................................................................................................3
1. Regulatory Information .........................................................................3
1.3 Abbreviations.............................................................................................5
2. PERFORMANCE ...................................................................... 7
.1 Product Name ............................................................................................7
. Supporting Standard ..............................................................................7
.3 Main Parts : GSM Solution .....................................................................7
.4 HW Features ...............................................................................................8
.5 SW Features ............................................................................................. 10
.6 HW SPEC. ................................................................................................. 14
3. TECHNICAL BRIEF ................................................................ 25
3.1 GENERAL DESCRIPTION ...................................................................... 5
3. GSM MODE .............................................................................................. 8
3.3 UMTS MODE ............................................................................................ 31
3.4 GPS RECEIVER.......................................................................................... 33
3.5 LO GENERATION and DISTRIBUTION CIRCUIT............................ 37
3.6 OFF-CHIP RF COMPONENTS ............................................................. 39
3.7 Digital Baseband(DBB/MSM77) .................................................. 44
3.8 Hardware Architecture ........................................................................ 46
3.9 Subsystem (MSM77) ....................................................................... 48
3.10 Power Block ........................................................................................... 59
3.11 External memory interface ............................................................. 65
3.1 H/W Sub System .................................................................................. 66
3.13 Audio and sound ................................................................................ 8
3.14 Display ..................................................................................................... 89
3.14 Main (5M pixels) & Sub (M pixels) Camera ............................. 93
3.16 Vibrator ................................................................................................... 96
3.17 Compass Sensor .................................................................................. 97
3.18 Motion Sensor ...................................................................................... 98
3.19 Gyro Sensor ........................................................................................... 99
3.0 Proximity Sensor ...............................................................................100
3.1 Illumination Sensor ..........................................................................101
3. Touch Module ....................................................................................10
3.3 Main Features .....................................................................................103
4. TROUBLE SHOOTING ........................................................ 106
4.1 RF Component .....................................................................................106
4. SIGNAL PATH .........................................................................................107
4.3 Checking TCXO Block .........................................................................109
4.4 Checking GSM TX Module(GSM PAM + FEM) Block ..............111
LGE Internal Use Only

Table Of Contents

4.5 Checking WCDMA Block ..................................................................114
4.6 Checking GSM Block ..........................................................................15
4.7 GPS/WIFI/BT RF components .........................................................133
4.8 GPS/WIFI/BT SIGNAL PATH ..............................................................135
4.9 Power ON troubleshooting .............................................................137
4.10 Charger Troubleshooting ..............................................................140
4.11 USB Trouble shooting .....................................................................143
4.1 Audio trouble .....................................................................................147
4.13 Camera troubleshooting ...............................................................158
4.14 Main LCD trouble ..............................................................................161
4.15 SIM detect Trouble shooting ........................................................164
4.16 Side Key Trouble shooting ............................................................168
4.17 Vibrator Troubleshooting ..............................................................170
4.18 Motion sensor troubleshooting ..................................................173
4.19 Gyro/Compass sensor troubleshooting ..................................175
4.0 Proximity Sensor on/off trouble .................................................178
4.1 Illumination Sensor on/off trouble ............................................180
4. Touch trouble .....................................................................................18
5. DOWNLOAD ....................................................................... 184
6. BLOCK DIAGRAM ............................................................... 203
7. CIRCUIT DIAGRAM ............................................................ 206
8. BGA Pin Map ...................................................................... 219
9. PCB LAYOUT ....................................................................... 224
10. CALIBRATION ................................................................... 234
10.1 General Description .........................................................................34
10. Requirement .......................................................................................34
10.3 Setup for RF calibration ..................................................................35
10.4 Tachyon Software Installation .....................................................35
10.5 Tachyon Start ......................................................................................36
10.6 Overview of RF Calibration ...........................................................40
11. HIDDEN MENU ................................................................. 245
12. EXPLODED VIEW & REPLACEMENT PART LIST ............. 253
1.1 EXPLODED VIEW ................................................................................53
1. Replacement Parts ...........................................................................54
1.3 Accessory .............................................................................................95
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