2
VX8350
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Table of Contents
General Introduction------------------------------------------------------------------------------------------3
CHAPTER 1. System Introduction-------------------------------------------------------4
1.1 CDMA Abstract--------------------------------------------------------------------------------------------4
1.2 Features and Advantages of CDMA Mobile Phone--------------------------------------------5
1.3 Structure and Functions of Dual-band CDMA Mobile Phone------------------------------8
1.4 Specification-----------------------------------------------------------------------------------------------9
1.5 Installation------------------------------------------------------------------------------------------------14
CHPATER 2. NAM Input Method--------------------------------------------------------16
2.1 NAM Program Method and Telephone Number Inputting Method---------------------16
CHAPTER 3. Circuit Description--------------------------------------------------------26
3.1 RF Transmit/Receive Part----------------------------------------------------------------------------26
3.2 Digital/Voice Processing Part-----------------------------------------------------------------------32
CHAPTER 4. Trouble Shooting---------------------------------------------------------36
4.1 Rx Part Trouble------------------------------------------------------------------------------------------36
4.1.1 DCN Rx--------------------------------------------------------------------------------------------------36
4.1.2 PCS Rx--------------------------------------------------------------------------------------------------48
4.2 Tx Part Trouble------------------------------------------------------------------------------------------60
4.2.1 DCN Tx--------------------------------------------------------------------------------------------------60
4.2.2 PCS Tx---------------------------------------------------------------------------------------------------74
4.3 Logic Part Trouble--------------------------------------------------------------------------------------88
4.3.1 Power----------------------------------------------------------------------------------------------------88
4.3.2 LCD-------------------------------------------------------------------------------------------------------92
4.3.3 Camera--------------------------------------------------------------------------------------------------94
4.3.4 Audio----------------------------------------------------------------------------------------------------97
4.3.5 Backlight----------------------------------------------------------------------------------------------109
4.3.6 Vibrator------------------------------------------------------------------------------------------------111
4.4 Bluetooth Part Trouble------------------------------------------------------------------------------113
CHAPTER 5. Safety------------------------------------------------------------------------115
CHAPTER 6. Glossary--------------------------------------------------------------------118
APPENDIX------------------------------------------------------------------------------------130
1.Assembly and Disassembly diagram-------------------------------------------------------------131
2.Block and Circuit diagram----------------------------------------------------------------------------134
3.Part List-----------------------------------------------------------------------------------------------------148
4.Component Layout--------------------------------------------------------------------------------------159
5.BGA Pin Map----------------------------------------------------------------------------------------------170
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