LG MG370 Manuals

Manuals and User Guides for LG MG370. We have 1 LG MG370 manual available for free PDF download: Service Manual

LG MG370 Service Manual

LG MG370 Service Manual (114 pages)

LG Cell Phone Service Manual

Brand: LG | Category: Cell Phone | Size: 3.63 MB

Table of Contents

Table of Contents
4
1 Introduction

6
- Purpose
  6
- Regulatory Information
  6
- Abbreviation
  8
2 Performance

10
- Product Name
  10
- Supporting Standard
  10
- Main Parts: GSM Solution
  10
- H/W Features
  11
3 Technical Brief

15
- Digital Main Processor(PMB7880)
  15
- Power Amplifier Module (SKY77318)
  23
- 26 Mhz Clock (DCXO)
  25
- Rtc(32.768Khz Crystal)
  26
- LCD Interface(3-Wire SPI Interface)
  27
- SIM Card Interface
  29
- KEYPAD Interface
  30
- Battery Charging Block Interface
  31
- RF Interface
  32
- Audio Interface
  34
- Key LED Interface
  38
- Vibrator Interface
  39
- Memory Interface
  40
- Power Block Interface
  41
- Mg370A, Mg370B,Kg370,Kg375 Function Difference
  43
- BOM Difference
  44
4 Trouble Shooting

45
- Trouble Test Set-Up
  45
- Power on Trouble
  46
- Charging Trouble
  48
- Vibrator Trouble
  50
- SIM Card Trouble
  52
- KEY Backlight Trouble
  54
- RTC Trouble
  55
- LCD Trouble
  56
- Speaker Trouble
  58
- Receiver Trouble
  60
- Headphone Trouble
  61
- Microphone Trouble
  63
- RF Components
  64
- RX Receiver Part
  65
- RX Receiver Part
  67
- TX Transmitter Part
  68
5 Download

72
- Download Setup
  72
- Download Process
  73
6 Block Diagram

78
7 Circuit Diagram

80
8 BGA IC Pin Check

84
9 Pcb Layout

86
10 Calibration

88
- Calibration Steps
  88
11 Stand-Alone Test

93
- Test Program Setting
  93
- Tx Test
  95
- Rx Test
  96
12 Exploded View & Replacement Part List

98
- Exploded View
  98
- Replacement Parts
  100
- Main Component
  103
- Accessory
  112

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