LG U830 KU830 Manuals

LG U830 KU830 Manuals

Manuals and User Guides for LG U830 KU830. We have 1 LG U830 KU830 manual available for free PDF download: Service Manual

LG U830 KU830 Service Manual

LG U830 KU830 Service Manual (196 pages)

Brand: LG | Category: Cell Phone | Size: 4.99 MB

Table of Contents

Table of Contents
2
1 Introduction

4
- Purpose
  4
- Regulatory Information
  4
2 Performance

6
- System Overview
  6
- Usable Environment
  7
- Radio Performance
  7
- Current Consumption
  13
- Rssi Bar
  13
- Battery BAR
  13
- Sound Pressure Level
  14
- Charging
  15
3 Technical Brief

16
- General Description
  16
- GSM Mode
  19
- WCDMA Mode
  22
- LO Phase-Locked Loop
  24
- Off-Chip RF Components
  27
- Digital Baseband(DBB/MSM6275)
  34
- Hardware Architecture
  35
- Subsystem(Msm6275)
  37
- Power Block
  40
- External Memory Interface
  45
- H/W Sub System
  46
4 Trouble Shooting

74
- RF Component
  74
- Signal Path
  75
- Checking VTCXO Block
  77
- Checking Ant. SW Module Block
  80
- Checking WCDMA Block
  82
- Checking GSM Block
  89
- Bluetooth RF Block
  97
- Power on Troubleshooting
  99
- Charger Troubleshooting
  103
- USB Troubleshooting
  106
- SIM Detect Troubleshooting
  108
- Key Sense Troubleshooting
  109
- Camera Troubleshooting (2M Camera)
  110
- Keypad Backlight Troubleshooting
  112
- Folder ON/OFF Troubleshooting
  113
- Main LCD Troubleshooting
  114
- Audio Trouble Shooting
  117
- Audio Trouble Shooting
  118
- Vibrator Trouble
  128
5 Download

129
- Introduction
  129
- Downloading Procedure
  129
- Troubleshooting Download Errors
  141
- Caution
  146
6 Block Diagram

147
- GSM & WCDMA RF Block
  147
- Interface Diagram
  149
7 Circuit Diagram

152
8 Pcb Layout

160
9 Calibration Program

166
- Configuration of HOT KIMCHI
  166
- How to Use HOT KIMCHI
  170
- Example for Using HOT KIMCHI
  171
10 Exploded View & Replacement Part List

174
- Exploded View
  174
- Replacement Parts
  176
- Mechanic Component
  176
- Main Component
  179
- Accessory
  194

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