User Manuals: LG L704I Firmware Upgrade

Manuals and User Guides for LG L704I Firmware Upgrade. We have 2 LG L704I Firmware Upgrade manuals available for free PDF download: Service Manual, User Manual

LG L704I Service Manual

LG L704I Service Manual (203 pages)

Brand: LG | Category: Cell Phone | Size: 8 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
- Antenna BAR
  13
- Battery BAR
  14
- Sound Pressure Level
  15
- Charging
  15
3 Technical Brief

16
- General Description
  16
- GSM Mode
  18
- UMTS Mode
  22
- LO Phase-Locked Loop
  25
- Off-Chip RF Components
  27
- Digital Baseband(DBB/MSM6280)
  35
- Block Diagram(MSM6280)
  37
- Subsystem(Msm6280)
  38
- Power Block
  45
- External Memory Interface
  50
- H/W Sub System
  51
- Main Features
  70
4 Trouble Shooting

76
- RF Component
  76
- Checking VCXO Block
  79
- Checking Ant. SW Module Block
  81
- Checking UMTS Block
  84
- Checking GSM Block
  93
- Power on Troubleshooting
  96
- Charger Troubleshooting
  99
- USB Troubleshooting
  102
- SIM Detect Troubleshooting
  104
- Keypad Backlight Troubleshooting
  110
- Slide Close / Open Troubleshooting
  111
- Main LCD Troubleshooting
  112
- Receiver Path
  113
- Headset Path
  115
- Speaker Phone Path
  117
- Main Microphone
  119
- Headset Microphone
  121
- Vibrator
  123
5 Download

124
- Introduction
  124
- Downloading Procedure
  124
- Troubleshooting Download Errors
  138
- Caution
  142
6 Block Diagram

145
- GSM & UMTS RF Block
  145
- Interface Diagram
  147
  - Top Side
    149
  - Bottom Side
    150
7 Circuit Diagram

152
8 BGM Pin Map

162
9 Pcb Layout

164
10 Calibration & RF Auto Test Program (Hot Kimchi)

172
- Configuration of HOT KIMCHI
  172
- How to Use HOT KIMCHI
  173
11 Exploded View & Replacement Part List

176
- Exploded View
  176
- Replacement Parts
  178
- Mechanic Component
  178
- Main Component
  181
- Accessory
  201

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LG L704I User Manual

LG L704I User Manual (123 pages)

Brand: LG | Category: Cell Phone | Size: 1 MB

Table of Contents

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