LG GC480W1 VCR Manuals

Manuals and User Guides for LG GC480W1 VCR. We have 1 LG GC480W1 VCR manual available for free PDF download: Service Manual

LG GC480W1 Service Manual

LG GC480W1 Service Manual (122 pages)

VIDEO CASSETTE RECORDER

Brand: LG | Category: VCR | Size: 15 MB

Table of Contents

Table of Contents

3
- Video Cassette
  1
- Key to Abbreviations
  4
- Product Safety Servicing Guidelines for Video Products
  5
- Servicing Precautions
  6
- Protection
  7
- Service Notice on Replacing Eeprom
  8
- IC Setting
  9
- Specifications
  10
- Service Method
  11
  - Electrical Part
    11
- Exploded Views
  12
  - Cabinet & Main Frame Section
    12
  - Packing Accessory Section
    13
- Electrical Adjustment Points Arrangement
  14
- Electrical Adjustment Procedures
  15
- Electrical Troubleshooting Guide
  17
  - Power Circuit(SMPS)
    17
  - Servo Circuit
    20
  - System & Front Panel Circuit
    23
  - Y/C Circuit
    26
  - Tuner/If Circuit
    30
  - Hi-Fi Circuit
    33
- Block Diagrams
  35
  - Power Block Diagram
    35
  - Y/C Block Diagram
    37
  - Hi-Fi Block Diagram
    37
  - System Block Diagram
    38
- Circuit Diagrams
  39
  - Power Circuit Diagram
    39
  - Tuner, NICAM, A2 Circuit Diagram
    40
  - A/V Circuit Diagram
    41
  - System Circuit Diagram
    42
  - Hi-Fi Circuit Diagram
    43
  - Waveform
    44
  - Circuit Voltage Chart
    45
- Printed Circuit Board Diagrams
  47
  - MAIN P.C.board (TOP VIEW)
    47
  - MAIN P.C.board (BOTTOM VIEW)
    48
  - KEY (LEFT) P.C.board
    49
Section 4 Mechanism (D-37)

51
- Mechanism Parts
  51
- Position Drawing of Deck Mechanism Parts
  
  52
  - Top View
    52
  - Bottom View
    52
- Disassembly and Assembly of Deck Mechanism
  
  53
  - Plate Top Disassembly
    54
  - Holder Assembly CST
    54
  - Rack F/L
    54
  - Arm Assembly F/L
    54
  - Lever Assembly S/W
    54
  - Motor Assembly L/D
    56
  - Gear Wheel
    56
  - Arm Assembly Cleaner
    56
  - Head F/E
    56
  - Base Assembly A/C Head
    56
  - Brake Assembly T
    57
  - Arm Assembly Tension
    57
  - Reel S / Reel T
    57
  - Base Assembly P4
    58
  - Opener Lid
    58
  - Arm Assembly Pinch
    58
  - Arm T/Up
    58
  - Supporter, Capstan
    59
  - Belt Capstan/Motor Capstan
    59
  - Lever F/R
    59
  - Clutch Assembly D37
    59
  - Gear Drive/Gear Cam
    60
  - Gear Sector
    60
  - Brake Assembly Capstan
    60
  - Plate Slider
    60
  - Lever Tension
    60
  - Lever Spring
    60
  - Lever Brake
    60
  - Gear Assembly P2/Gear Assembly P3
    61
  - Base Assembly P2/Base Assembly P3
    61
  - Base Loading
    61
  - Base Tension
    62
  - Arm Assembly Idler Jog
    62
- Deck Mechanism Adjustment
  
  63
  - Fixtures and Tools for Service
    63
  - Previous Preparation for Deck Adjustment
    65
  - Torque Measuring
    65
    
    Prior Adjustment
    66
    
    Fine Adjustment
    66
    
    Guide Roller Height Adjustment
    66
    
    Prior Adjustment
    67
    
    Fine Adjustment (Azimuth Adjustment)
    68
  - X-Distance Adjustment
    68
  - Adjustment of Drum Assembly (Video Heads)
    69
    
    Deck Assembly
    69
    
    CUE or REV
    69
    
    Check of Tape Curl and Jam Status
    69
    
    Removal of Foreign Materials
    70
    
    Grease Application
    72
- Guide for Troubleshooting
  
  74
  - Deck Mechanism
    74
  - Front Loading Mechanism
    77
- Exploded Views
  
  79

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