Sony RMT-V231B Manuals

Manuals and User Guides for Sony RMT-V231B. We have 1 Sony RMT-V231B manual available for free PDF download: Service Manual

Sony RMT-V231B Service Manual

Sony RMT-V231B Service Manual (76 pages)

Brand: Sony | Category: VCR | Size: 6.47 MB

Table of Contents

Table of Contents
4
Service Note

6
General

8
Disassembly

28
- Upper Case
  28
  - Front Panel Block Assembly
    28
- Board, DM-80 Board
  28
- Rear Panel
  28
- Power Block, Ma-327 Board
  29
  - Mechanism Deck)
    29
- S Mechanism Deck
  29
- Internal Views
  30
- Circuit Boards Location
  31
Block Diagrams

32
- Overall Block Diagram
  32
- Video Block Diagram
  33
- Servo/System Control Block Diagram
  34
- Audio Block Diagram
  35
- Mode Control Block Diagram
  36
- Tuner Block Diagram
  37
- Power Supply Block Diagram
  38
Printed Wiring Boards and Schematic Diagrams

39
- Frame Schematic Diagram
  39
  - Schematic Diagrams
    40
  - Rec/Pb Amp, Video, Servo/System Control, Audio, Tuner
    40
  - Printed Wiring Board
    40
  - Rec/Pb Amp
    41
  - Video, Normal Audio
    42
    
    Schematic Diagram
    42
  - Servo/System Control
    43
    
    Schematic Diagram
    43
  - On Screen Display
    44
    
    Schematic Diagram
    45
  - Afm Audio
    45
    
    Schematic Diagram
    46
  - Tuner
    46
    
    Schematic Diagram
    47
  - Power Supply, Av-Bus
    47
    
    Schematic Diagram
    49
    
    Schematic Diagram
    50
  - Operation Switches
    50
  - Line-2 in
    50
    
    Schematic Diagram
    51
  - Power Block Sr801 (Switching Regulator)
    51
    
    Schematic Diagram
    52
  - Power Block Sr709 (Switching Regulator)
    52
5 Interface

53
Adjustments

56
- Mechanical Adjustments
  56
- Electrical Adjustments
  56
- Preparation before Adjustment
  56
- Equipment Required
  56
- Equipment Connection
  56
- Input Signal Check
  56
- Alignment Tape
  56
- Input/Output Levels and Impedance
  57
- Adjustment Sequence
  57
- Power Supply Check
  57
- Output Voltage Check (MA-327 Board)
  57
- Servo System Check
  58
- RF Switching Position
  58
  - AF Switching Position Adjustments (MA-327 Board)
    58
- Video System Checks
  59
- X'tal OSC Check (MA-327 Board)
  59
- SYNC AGC Check (MA-327 Board)
  59
- Recording y Level Check (MA-327 Board)
  59
- Recording Chroma Level Check(MA-327 Board)
  59
- Playback Level Check (MA-327 Board)
  60
- Audio System Adjustment
  60
- ACE Head Adjustment
  60
- E-E Output Level Check
  60
- Overall Output Level and Distortion Factor Check
  60
- Overall Noise Level Check
  61
- Tuner System Adjustment
  61
- Separation Adjustment (MA-327 Board)
  61
- Adjusting Parts Location Diagram
  62
Repair Parts List

63
- Exploded Views
  63
- Front Panel Assembly and Upper Case
  63
- Chassis Section
  64
- Mechanism Deck-1
  65
- Mechanism Deck-2
  66
- Mechanism Deck-3
  67
- Electrical Parts List
  68

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