LG GB195 Cell Phone Manuals

LG GB195 Cell Phone Manuals

Manuals and User Guides for LG GB195 Cell Phone. We have 1 LG GB195 Cell Phone manual available for free PDF download: Service Manual

LG GB195 Service Manual

LG GB195 Service Manual (180 pages)

Brand: LG | Category: Cell Phone | Size: 15.72 MB

Table of Contents

Table of Contents
2
1 Introduction

3
- Purpose
  3
- Regulatory Information
  3
2 Performance

5
- H/W Features
  5
- S/W Features
  6
3 Technical Brief

18
- Digital Main Processor( MT6223 )
  18
  - System Overview
    19
  - General Description
    23
- Power Amplifier Module (SKY77518)
  25
- Transceiver Module
  26
- Ad6548 )
  26
  - Pin Descriptions
    27
  - Memory Module (PF38F4050M0Y0CG)
    28
  - FM Radio Module (Si4708)
    32
  - Antenna Switch Module (B9308)
    34
  - Camera Module (AIT706X)
    35
  - LCD Interface
    39
  - SIM& Micro SD Card Interface
    42
  - KEYPAD Interface
    43
  - Battery Charging Block Interface
    44
  - Audio Interface
    45
  - Vibrator Interface
    47
  - Key LED Interface
    48
4 Trouble Shooting

49
- Power on Trouble
  49
- Circuit Diagram
  51
- SIM Card Trouble
  54
- Vibrator Trouble
  56
- Keypad Trouble
  58
- RTC Trouble
  60
- Key Backlight Trouble
  62
- Keypad Led
  63
- LCM Backlight Trouble
  64
- LCM Trouble
  66
- Microphone Trouble
  68
- Receiver Trouble
  70
- Speaker Trouble
  72
- Headphone Trouble
  74
- Charging Trouble
  77
- FM Radio Trouble
  79
- Camera Trouble
  81
- Micro SD Trouble
  84
- RF Trouble
  86
5 Download

98
- Download Setup
  98
- Download Process
  99
6 Block Diagram

107
7 Circuit Diagrma

108
8 BGA IC PIN Check

117
9 Pcb Layout

120
10 Engineering Mode

122
- All Auto Test
  125
11 Calibration

126
- Test Equipment Setup
  126
- Calibration Steps
  127
12 Stand Alone Test

166
- Test Configuration
  166
- META Tool Install Process
  167
- Rx Test
  172
- Tx Test
  174
13 Exploded View&Replacement Part List

175
- Exploded View
  175
- Replacement Part List
  177

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