LG W5300 Manuals

Manuals and User Guides for LG W5300. We have 1 LG W5300 manual available for free PDF download: Service Manual

LG W5300 Service Manual

LG W5300 Service Manual (139 pages)

GSM Phone

Brand: LG | Category: Cell Phone | Size: 11.24 MB

Table of Contents

Table of Contents
2
1 Introduction

4
- Purpose
  4
- Regulatory Information
  4
  - Security
    4
  - Incidence of Harm
    4
  - Changes in Service
    4
  - Maintenance Limitations
    4
  - Notice of Radiated Emissions
    5
  - Pictures
    5
  - Interference and Attenuation
    5
  - Electrostatic Sensitive Devices
    5
- Abbreviations
  6
2 Performance

7
- H/W Feature
  7
- Technical Specification
  8
3 Technical Brief

12
- General Description
  12
- Receiver
  12
  - RF Front End
    13
  - Demodulator and Baseband Processing
    13
  - DC Offset Compensation
    13
- Transmitter Part
  14
  - IF Modulator
    14
  - Opll
    15
  - Synthesizer
    15
  - Power Amplifier
    16
- 13 Mhz Clock
  17
- Power Supplies and Control Signals
  17
- Testing Set-Up and Checking Signals
  18
  - Received RF Level and Checks
    18
  - Transmitted RF Level and Checks
    18
- Digital Main Processor
  31
- Analog Main Processor
  36
- Power Management
  41
- Memories
  43
- Display and Interface
  43
- Keypad Switches and Scanning
  44
- Microphone
  45
- Earpiece
  46
- Hands-Free Interface
  46
- Headset Jack Interface
  46
- Key Back-Light Illumination
  47
- LCD Back-Light Illumination
  48
- Speaker & MIDI IC
  49
4 Trouble Shooting

51
- RF Components
  51
- Rx Trouble
  52
- Tx Trouble
  60
- Power on Trouble
  73
- Charging Trouble
  75
- LCD Trouble
  77
- Receiver Trouble
  79
- Speaker Trouble
  81
- MIC. Trouble
  84
- Vibrator Trouble
  87
- Backlight LED Trouble
  89
- SIM Detect Trouble
  91
- Earphone Trouble
  93
- HFK Trouble
  98
5 Disassembly Instruction

101
- Disassembly
  101
6 Download and Calibration

104
- Download
  104
- Calibration
  110
  - Equipment List
    110
  - Equipment Setup
    110
  - Test Jig Operation
    111
  - Procedure
    112
7 Block Diagram

113
8 Circuit Diagram

114
- Main
  114
- Memory & MMI
  115
- MIDI
  116
- Rf Circuit
  117
9 Pcb Layout

118
10 Engineering Mode

120
- About Engineering Mode
  120
- Access Codes
  120
- Key Operation
  120
- BB Test [MENU 1]
  120
  - Lcd [1-1]
    120
  - Backlight [1-2]
    120
  - Buzzer [1-3]
    120
  - Vibrator [1-4]
    120
  - ADC (Analog to Digital Converter) [1-5]
    121
  - Battery [1-6]
    121
  - Audio [1-7]
    121
  - DAI (Digital Audio Interface)
    121
  - RF Test [MENU 2]
    122
    
    SAR Test [2-1]
    122
  - MF Mode [MENU 3]
    122
    
    All Auto Test [3-1]
    122
    
    Backlight [3-2]
    122
    
    Buzzer [3-3]
    122
    
    Vibrator [3-4]
    122
    
    Lcd [3-5]
    122
    
    Key Pad [3-6]
    122
  - Trace Option [MENU 4]
    123
  - Call Timer [MENU 5]
    123
    
    All Calls [5-1]
    123
    
    Reset Settings [5-2]
    123
  - Fact. Reset [MENU 6]
    123
  - S/W Version [MENU 7]
    123
11 Stand Alone Test

124
- Introduction
  124
  - Tx Test
    124
  - Rx Test
    124
- Setting Method
  124
  - COM Port
    124
- Means of Test
  125
12 Auto Calibration

126
- Overview
  126
- Requirements
  126
- Menu and Settings
  126
- Agc
  128
- Apc
  128
- Adc
  128
- Setting
  128
- How to Do Calibration
  128
13 Exploded View & Replacement Part List

129
- Accessories
  131
- Replacement Part List
  132

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