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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. Abbreviations ................................................................................... 7
2. PERFORMANCE ..................................................9
2.1 H/W Features .................................................................................... 9
2.2 Technical Specification ...............................................................11
3. TECHNICAL BRIEF ............................................16
.1 Digital Main Processor ................................................................16
.2 Power Management ....................................................................20
. FEM with integrated Power Amplifier Module .................2
.4 Crystal (26 MHz, X102) ................................................................4
.5 RF Subsystem of PMB8810 (U101).........................................4
.6 MEMORY (K5N217ATA-AT80, U102 ) ..................................8
.7 SIM Card Interface ........................................................................40
.8 LCD Interface ..................................................................................41
.9 Battery Charger Interface ..........................................................4
.10 Keypad Interface ........................................................................44
.11 Audio Front-End .........................................................................46
.12 KEY BACLKLIGHT LED Interface ............................................52
.1 Vibrator Interface .......................................................................5
.14 Torch LED .......................................................................................54
.15 Camera Interface (AIT701U, U405) ......................................55
4. TROUBLE SHOOTING ......................................58
4.1 RF Component...............................................................................58
4.2 RX Trouble .......................................................................................59
4. TX Trouble ........................................................................................6
4.4 Power On Trouble .........................................................................65
4.5 Charging Trouble ..........................................................................68
4.6 Vibrator Trouble .............................................................................70
4.7 LCD Trouble .....................................................................................72
4.8 Speaker Trouble ............................................................................76
4.9 Earphone Trouble .........................................................................79
4.10 Microphone Trouble .................................................................82
4.11 SIM Card Interface Trouble .....................................................84
4.12 KEY backlight Trouble ..............................................................86
4.1 FM Radio Trouble .......................................................................88
5. DOWNLOAD .....................................................90
5.1 S/W Download ...............................................................................90
5.2 Download program user guide ..............................................91
5. Multi-Download Program Setting (Model-Base) .............92
6. BLOCK DIAGRAM .............................................94
7. CIRCUIT DIAGRAM ..........................................95
8. BGA Pin Map ....................................................99
9. PCB LAYOUT ...................................................103
10.ENGINEERING MODE ...................................105
11. AUTO CALIBRATION ....................................106
11.1 Overview .................................................................................... 106
11.2 Configuration of HotKimchi ............................................... 106
11. Description of Basic File ....................................................... 107
11.4 Procedure ................................................................................... 108
11.5 AGC ............................................................................................... 111
11.6 APC ............................................................................................... 111
11.7 ADC ............................................................................................... 111
11.8 Target Power ............................................................................. 111
12. EXPLODED VIEW & REPLACEMENT
PART LIST ....................................................113
12.1 EXPLODED VIEW ...................................................................... 11
12.2 Replacement Parts.................................................................. 115
12. Accessory ................................................................................... 129
Содержание GS155
Страница 1: ...Service Manual Model GS155 Internal Use Only Service Manual GS155 Date February 2010 Issue 1 0 ...
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