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Copyright © 2009 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. SYSTEM SPECIFICATION................................. 9
2.1 H/W Features ..............................................................9
2.2 Technical Specifi cation ...............................................11
3. TECHNICAL BRIEF ......................................... 16
3.1 Main Processor(Digital Part : AD6725, U102) ..............16
3.2 Main Processor (Analog Part : AD6725, U102) ............19
3.3 RF Transceiver (AD6546) ...........................................26
3.4 Power Amplifi er Module (SKY77523) ..........................39
3.5 BT Module with integrated FM tuner ...........................30
3.6 MEMORY(PF38F5060M0Y0BE, U100 ) .......................32
3.7 Multi-Media Processor (AIT817, U602) .......................35
3.8 SIM Card Interface .....................................................38
3.9 Micro-SD Card Interface ............................................39
3.10 LCD Interface ..........................................................40
3.11 Battery Charger Interface .........................................43
3.12 Keypad Interface .....................................................44
3.13 Audio Interface ........................................................46
3.14 Camera Interface(2M Fixed Focus Camera) ...............53
3.15 KEY BACLKLIGHT LED Interface ................................55
3.16 Vibrator Interface .....................................................57
4. TROUBLE SHOOTING ..................................... 58
4.1 RF Component ..........................................................58
4.2 RX Trouble ................................................................59
4.3 TX Trouble .................................................................64
4.4 Power On Trouble ......................................................68
4.5 Charging Trouble .......................................................71
4.6 Vibrator Trouble .........................................................73
4.7 LCD Trouble ..............................................................75
4.8 Camera Trouble .........................................................79
4.9 Speaker Trouble ........................................................83
4.10 Earphone Trouble .....................................................85
4.11 Receiver Trouble ......................................................89
4.12 Microphone Trouble .................................................91
4.13 SIM Card Interface Trouble .......................................93
4.14 KEY backlight Trouble ..............................................95
4.15 RTC Trouble ............................................................97
4.16 Folder on/off Trouble ................................................99
4.17 Micro SD Trouble ...................................................101
4.18 FM radio Trouble ...................................................103
5. DOWNLOAD ................................................. 105
5.1 Download................................................................105
6. BLOCK DIAGRAM ........................................ 111
7. CIRCUIT DIAGRAM ...................................... 113
8. BGA Pin Map .............................................. 121
9. PCB LAYOUT ............................................... 125
10. Confi guration of HOT KIMCHI ................. 131
10.1 BB Test [MENU 1] ..................................................132
10.2 RF Test [MENU 2] ..................................................134
10.3 MF mode [MENU 3] ...............................................134
10.4 Trace option [MENU 4] ...........................................135
10.5 Call timer [MENU 5] ...............................................135
10.6 Fact. Reset [MENU 6] .............................................135
10.7 S/W version ..........................................................135
11. STAND ALONE TEST.................................. 136
11.1 Introduction ...........................................................136
11.2 Setting Method ......................................................136
11.3 Means of Test ........................................................137
12. RF Calibration .......................................... 139
12.1 Overview ...............................................................139
12.2 Procedure .............................................................139
12.3 AGC ......................................................................140
12.4 APC ......................................................................140
12.5 ADC ......................................................................140
13. EXPLODED VIEW & REPLACEMENT
PART LIST ................................................ 141
13.1 EXPLODED VIEW ...................................................141
13.2 Replacement Parts ................................................143
13.3 Accessory .............................................................166