LG KG330, Service Manual

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1. Introduction ..................................... 5
1.1 Purpose................................................... 5
1.2 Regulatory Information............................ 5
2. General Performance...................... 7
2.1 Hardware Feature ................................... 7
2.2 Software Feature .................................... 8
3. Technical Brief ................................ 9
3.1 BaseBand Components (TOP) ................9
3.2 Digital Baseband(DBB) Processor.........14
3.3 Analog Main Processor (ABB) ...............15
3.4 Memory ..................................................16
3.5 Power Management Section..................17
3.6. RF Part Technical Brief.........................26
4. Troubleshooting.............................27
4.1 Power On Trouble .................................27
4.2 Charging Trouble ...................................31
4.3 LCD Display Trouble..............................33
4.4 Receiver Trouble....................................35
4.5 Speaker Trouble ....................................38
4.6 Microphone Trouble ...............................41
4.7 Vibrator Trouble .....................................44
4.8 Keypad Backlight Trouble ......................47
4.9 Touch Pad Trouble ................................49
4.10 Jog Encoder Trouble............................51
4.11 Rotary Trouble .....................................53
4.12 SIM Detect Trouble ..............................55
4.13 Earphone Trouble ................................57
4.14 RTC Trouble ........................................64
4.15 Camera Trouble ...................................66
4.16 Camera Flash Trouble .........................69
4.17 MICRO SD Trouble..............................71
4.18 RX Part Trouble Shooting ....................73
4.19 TX Part Trouble Shooting ....................83
5. Downloading Software ..................95
5.1 The Environment of Downloading
Software.................................................95
5.2 The Procedure of Downloading
Software.................................................96
6. BLOCK DIAGRAM ........................103
7. Circuit Diagram ............................105
8. Pcb Layout....................................116
9. Calibration ....................................121
9.1 Calibration Equipment Setup ...............121
9.2 Standalone Test...................................124
10. EXPLODED VIEW &
REPLACEMENT PART LIST .... 131
10.1 EXPLODED VIEW ............................ 131
10.2 Replacement Parts
<Mechanic component>.................... 133
<Main component> ........................... 137
10.3 Accessory ......................................... 154
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