LG GB115 Dual-Band GSM Phone Manuals

LG GB115 Dual-Band GSM Phone Manuals

Manuals and User Guides for LG GB115 Dual-Band GSM Phone. We have 1 LG GB115 Dual-Band GSM Phone manual available for free PDF download: Service Manual

LG GB115 Service Manual

LG GB115 Service Manual (142 pages)

Brand: LG | Category: Cell Phone | Size: 14.34 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

13
- Digital Main Processor( PMB7890 )
  13
- Memory Chip (S71GL064NA0BFW0Z0)
  20
- Power Amplifier Module ( SKY77518 )
  21
- Rf Saw (B9308)
  22
- Audio Amplifier (TPA6205A1)
  23
- Charger IC (MP26021)
  24
- Camera Driver (AIT701A)
  26
- FM Radio (Si4703)
  30
- LCD Interface
  32
- SIM Card Interface
  34
- KEYPAD Interface
  35
- Key LED Interface
  36
- Vibrator Interface
  37
- Micro SD Interface
  38
4 Trouble Shooting

39
- Power on Trouble
  39
- SIM Card Trouble
  42
- Vibrator Trouble
  44
- Keypad Trouble
  46
- RTC Trouble
  48
- Key Backlight Trouble
  50
- LCM Backlight Trouble
  53
- LCM Trouble
  55
- Microphone Trouble
  57
- Receiver Trouble
  59
- Speaker Trouble
  61
- Headphone Trouble
  63
- Charging Trouble
  67
- FM Radio Trouble
  69
- Camera Trouble
  75
- Micro SD Trouble
  78
- RF Trouble
  80
5 Download

93
- Download Setup
  93
- Download Tool
  94
- Download Process
  95
6 Block Diagram

106
7 Circuit Diagrma

107
8 BGA IC PIN Check

113
9 Pcb Layout

116
10 Engineering Mode

118
- Test Procedure
  119
11 Calibration

120
- Test Equipment Setup
  120
- APT Technologies
  120
12 Stand Alone Test

135
- Test Program Setting
  135
- TX Test
  137
- RX Test
  138
13 Exploded View&Replacement Part List

139
- Exploded View
  139
- Replacement Parts List
  141

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