LG LG-A258, Руководство по обслуживанию, Страница: 2 / 157

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Table Of Contents
1. INTRODUCTION ...................................................................3
1.1 Purpose .....................................................................................................3
1. Regulatory Information ......................................................................3
1.3 Abbreviations..........................................................................................5
2. PERFORMANCE ....................................................................7
.1 H/W Features ...........................................................................................7
. Technical Specification ........................................................................9
3. TECHNICAL BRIEF ..............................................................14
3.1 LG-A58 Functional Block Diagram ............................................ 14
3. Digital Main Processor (PMB8815, U00) ................................. 15
3.3 Power Management ......................................................................... 0
3.4 FEM with integrated Power Amplifier Module
(SKY77550, U301) ............................................................................... 33
3.5 Crystal(6 MHz, X100) ...................................................................... 36
3.6 RF Subsystem of PMB8815 (U101) .............................................. 37
3.7 MEMORY ................................................................................................ 40
3.8 Bluetooth module .............................................................................. 45
3.9 SIM Card Interface .............................................................................. 47
3.10 LCD Interface ..................................................................................... 48
3.11 Vibrator Interface ............................................................................. 49
3.1 MINI ABB Interface .......................................................................... 50
3.13 Keypad Interface .............................................................................. 53
3.14 Audio Front-End ............................................................................... 55
3.15 Camera Interface .............................................................................. 61
3.16 KEY BACLKLIGHT LED Interface ................................................. 63
4. TROUBLE SHOOTING ........................................................64
4.1 Trouble shooting test setup ........................................................... 64
4. RF Component .................................................................................... 65
4.3 RX Trouble ............................................................................................. 66
4.4 TX Trouble .............................................................................................. 7
4.5 Power On Trouble ............................................................................... 78
4.6 Charging Trouble ................................................................................ 81
4.7 Vibrator Trouble .................................................................................. 84
4.8 LCD Trouble .......................................................................................... 87
4.9 Camera Trouble ................................................................................... 91
4.10 Speaker Trouble ................................................................................ 94
4.11 Earphone Trouble ............................................................................ 97
4.1 Micro SD Trouble ............................................................................10
4.13 Bluetooth Trouble ..........................................................................104
4.14 FM Radio Trouble ...........................................................................106
5. DOWNLOAD .....................................................................109
6. BLOCK DIAGRAM .............................................................122
7. CIRCUIT DIAGRAM ..........................................................123
8. BGA PIN MAP ..................................................................128
9. PCB LAYOUT .....................................................................130
10. STAND ALONE TEST ......................................................132
10.1 Introduction .....................................................................................13
10. Setting Method ..............................................................................13
10.3 Tx Test .................................................................................................134
10.4 Rx Test .................................................................................................135
11.AUTO CALIBRATION .......................................................136
11.1 Overview ...........................................................................................136
11. Directory structure of Tachyon .................................................136
11.3 Description of Folder & File. .......................................................137
11.4 Procedure ..........................................................................................138
11.5 Tachyon Main UI .............................................................................139
11.6 AGC ......................................................................................................140
11.7 APC ......................................................................................................140
11.8 ADC ......................................................................................................140
11.9 Target Power ....................................................................................140
12. EXPLODED VIEW & REPLACEMENT PART LIST ..........141
1.1 EXPLODED VIEW .............................................................................141
1. Replacement Parts ........................................................................14
1.3 Accessory ..........................................................................................157