Table Of Contents - LG -E730 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. ................................................................................................. 13
3. TECHNICAL BRIEF ................................................................ 24
3.1 GENERAL DESCRIPTION ...................................................................... 4
3. GSM mode ............................................................................................... 6
3.3 UMTS mode ............................................................................................. 9
3.4 GPS RECEIVER.......................................................................................... 31
3.5 OFF-CHIP RF COMPONENTS ............................................................. 3
3.6 Digital Baseband(MSM855) ............................................................ 39
3.7 Hardware Architecture ........................................................................ 40
3.8 Subsystem (MSM855) ....................................................................... 4
3.9 Power Block ............................................................................................. 48
3.10 External memory interface ............................................................. 58
3.11 H/W Sub System .................................................................................. 59
3.1 Audio and sound ................................................................................ 65
3.13 Display ..................................................................................................... 73
3.14 Vibrators (Q-Coin Motor) ................................................................. 76
3.15 Compass Sensor .................................................................................. 78
3.16 Motion Sensor ...................................................................................... 79
3.17 Main Features ....................................................................................... 80
4. TROUBLE SHOOTING .......................................................... 81
4.1 RF Component ....................................................................................... 81
4. SIGNAL PATH ........................................................................................... 8
4.3 Checking XO Block ................................................................................ 84
4.4 Checking Dual Rx module (FEM + Dual Duplexer) Block ...... 87
4.5 Checking WCDMA Block .................................................................... 90
4.6 Checking GSM Block ..........................................................................100
4.7 WIFI/BT/FM RF Trouble shooting ..................................................110
4.8 GPS/WIFI/BT RF components .........................................................117
LGE Internal Use Only

Table Of Contents

4.9 Power ON Trouble shooting ............................................................11
4.10 Charging Trouble shooting ...........................................................16
4.11 SIM Detect Trouble shooting .......................................................130
4.1 Motion Sensor on/off Trouble Shooting .................................131
4.13 Compass Sensor on/off trouble shooting ..............................133
4.14 Camera troubleshooting ...............................................................135
4.15 Main LCD trouble ..............................................................................138
4.16 Proximity Sensor on/off trouble .................................................140
4.17 Touch trouble .....................................................................................14
4.18 Audio trouble .....................................................................................144
5. DOWNLOAD ....................................................................... 157
6. BLOCK DIAGRAM ............................................................... 176
7. CIRCUIT DIAGRAM ............................................................ 180
8. BGA PIN MAP .................................................................... 193
9. PCB LAYOUT ....................................................................... 207
10. CALIBRATION ................................................................... 216
10.1 General Description .........................................................................16
10. Requirement .......................................................................................16
10.3 Setup for RF calibration ..................................................................17
10.4 Tachyon Software Installation .....................................................17
10.5 Tachyon Usage ...................................................................................18
10.6 Overview of RF Calibration ...........................................................3
11. HIDDEN MENU ................................................................. 227
12. EXPLODED VIEW & REPLACEMENT PART LIST ............. 244
14.1 EXPLODED VIEW ................................................................................44
14. Replacement Parts ...........................................................................45
14.3 Accessory .............................................................................................73
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