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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Table Of Contents
1. INTRODUCTION..................................................................5
1.1 Purpose............................................................................................... 5
1.2 Regulatory Information ............................................................... 5
1.3 Abbreviations................................................................................... 7
2. PERFORMANCE...................................................................9
2.1 H/W Features.................................................................................... 9
2.2 Technical Specification...............................................................11
3. TECHNICAL BRIEF.............................................................16
3.1 Baseband Processor Introduction .........................................16
3.2 Power Management....................................................................21
3.3 FEM with integrated Power Amplifier Module
(RF7161, U304)...............................................................................34
3.4 Crystal(26 MHz, X100).................................................................37
3.5 RF Subsystem of PMB8810 (U102).........................................38
3.6 MEMORY(PF38F5060M0Y3DF, U101)...................................43
3.7 BT module (U303).........................................................................45
3.8 SIM Card Interface........................................................................47
3.9 LCD Interface..................................................................................48
3.10 Battery Charger Interface .......................................................51
3.11 Keypad Interface........................................................................52
3.12 Audio Front-End.........................................................................54
3.13 Camera Interface(2M Fixed Focus Camera).....................60
3.14 KEY BACLKLIGHT LED Interface............................................62
3.15 Vibrator Interface .......................................................................63
3.16 Folder SW Interface...................................................................64
4. TROUBLE SHOOTING .......................................................65
4.1 RF Component...............................................................................65
4.2 RX Trouble .......................................................................................66
4.3 TX Trouble........................................................................................70
4.4 Power On Trouble.........................................................................74
4.5 Charging Trouble..........................................................................77
4.6 Vibrator Trouble.............................................................................79
4.7 LCD Trouble.....................................................................................82
4.8 Camera Trouble.............................................................................86
4.9 Speaker Trouble ............................................................................90
4.10 Earphone Trouble ......................................................................92
4.11 Receiver Trouble.........................................................................94
4.12 Microphone Trouble.................................................................96
4.13 SIM Card Interface Trouble.....................................................98
4.14 KEY backlight Trouble ........................................................... 100
4.15 Micro SD (uSD) Trouble......................................................... 102
4.16 FM Radio Trouble .................................................................... 104
4.17 Folder on/off Trouble............................................................. 106
5. DOWNLOAD................................................................... 108
6. BLOCK DIAGRAM........................................................... 121
7. CIRCUIT DIAGRAM ........................................................ 123
8. BGA PIN MAP................................................................. 129
9. PCB LAYOUT................................................................... 131
10.ENGINEERING MODE................................................... 137
11. STAND ALONE TEST .................................................... 138
11.1 Introduction.............................................................................. 138
11.2 Setting Method........................................................................ 138
11.3 Tx Test........................................................................................... 141
11.4 Rx Test.......................................................................................... 143
12.AUTO CALIBRATION..................................................... 145
12.1 Overview .................................................................................... 145
12.2 Configuration of HotKimchi ............................................... 145
12.3 Description of Basic File ....................................................... 146
12.4 Procedure................................................................................... 147
12.5 AGC............................................................................................... 150
12.6 APC ............................................................................................... 150
12.7 ADC............................................................................................... 150
12.8 Target Power ............................................................................. 152
13 EXPLODED VIEW & REPLACEMENT
PART LIST ...................................................................... 151
13.1 EXPLODED VIEW...................................................................... 151
13.2 Replacement Parts.................................................................. 153
13.3 Accessory ................................................................................... 168
