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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 .................................... 7
3. Technical Brief ................................ 8
3.1 Baseband Part Technical Brief ................8
3.1.1. BaseBand Components................9
3.1.2. BaseBand Components..............10
3.1.3. BaseBand Components..............11
3.1.4. Digital Baseband(DBB)
Processor....................................12
3.1.5 Analog Main Processor................13
3.1.6 Memory........................................14
3.1.7 Voltage Regulation (LDO)............15
3.1.8 MIDI .............................................16
3.1.9 Charging ......................................17
3.1.10 KEY Back-light Illumination........18
3.1.11 Camera ......................................20
3.1.12 SIM ............................................21
3.1.13 Keypad.......................................22
3.2. RF Part Technical Brief.........................24
3.2.1 The Block Diagram of the RF Part ..24
3.2.2 RF Part components .......................25
3.2.3. Tx / Rx Part Description .................26
3.2.4. Receiver Part Description...............28
3.2.5 Transmitter Part Description............34
4. Troubleshooting.............................39
4.1 Power On Trouble..................................39
4.1.1 Charging Trouble .........................40
4.1.2 LCD Display Trouble....................43
4.1.3 Speaker/Receiver Trouble ...........46
4.1.4 Microphone Trouble.....................51
4.1.5 Vibrator Trouble ...........................54
4.1.6 Keypad Backlight Trouble............57
4.1.7 Keypad Backlight Trouble............60
4.1.8 Folder ON/OFF Trouble...............63
4.1.9 SIM Detect Trouble......................65
4.1.10 Camera Trouble.........................67
4.1.11 Earphone Trouble ......................72
4.2 RX Part Trouble Shooting ......................78
4.3 TX Part Trouble Shooting ......................98
5. DOWNLOAD .................................104
6. BLOCK DIAGRAM ........................110
7. Circuit Diagram.............................111
8. pcb layout.....................................120
9. Calibration ....................................125
A. What is Standalone Test? ..............125
B. Standalone Test Equipment
Setup ..............................................126
C. What is Calibration? .......................127
D. Calibration program........................128
E. Calibration Equipment Setup..........129
F. Calibration LG9200 with
HOT_KIMCHI .................................130
10. EXPLODED VIEW &
REPLACEMENT PART LIST .... 135
10.1 EXPLODED VIEW ............................ 135
10.2 Replacement Parts
<Mechanic component>.................... 137
<Main component> ........................... 140
10.3 Accessory ......................................... 154
Table of Contents
