JVC HR-S7955MS Manuals

Manuals and User Guides for JVC HR-S7955MS. We have 1 JVC HR-S7955MS manual available for free PDF download: Service Manual

JVC HR-S7955MS Service Manual

JVC HR-S7955MS Service Manual (84 pages)

Brand: JVC | Category: VCR | Size: 9.29 MB

Table of Contents

Table of Contents
3
Important Safety Precautions

4
- Safety Check after Servicing
  5
1 Disassembly

7
- Manually Removing the Cassette Tape
  7
- Removing the Major Parts
  8
  - How to Read the Procedure Table
    8
  - Disassembly Procedure
    8
- Emergency Display Function
  10
- Service Position
  15
  - How to Set the "Service Position
    15
- Jig RCU Mode
  15
  - Setting the Jig RCU Mode
    15
  - Setting the User RCU Mode
    15
- Mechanism Service Mode
  15
  - How to Set the "Mechanism Service Mode
    15
  - How to Exit from the "Mechanism Service Mode
    15
- Maintenance and Inspection
  16
  - Cleaning
    16
  - Lubrication
    16
  - Suggested Servicing Schedule for Main Components
    16
2 Mechanism

17
3 Adjustment

27
- Before Adjustment
  27
- Mechanism Compatibility Adjustment
  28
  - Tension Pole Position
    28
  - FM Waveform Linearity
    29
  - Height and Tilt of the A/C Head
    29
  - A/C Head Phase(X-Value)
    30
- Electrical Adjustment
  30
  - Servo Circuit
    30
    
    Switching Point
    30
    
    Slow Tracking Preset
    31
  - Video Circuit
    31
    
    EE Y/PB y(S-Vhs/Vhs)Level
    31
  - Audio Circuit
    31
    
    Audio REC FM
    31
  - Syscon Circuit(EU/EK MODEL)
    32
    
    Timer Clock
    32
  - PAL/SECAM Converter Circuit(MS MODEL)
    32
    
    Colour Difference Level
    32
    
    SECAM Burst Position
    32
- Packing and Accessory Assembly<M1
  35
- Final Assembly<M2
  36
- Mechanism Assembly<M4
  38
- Electrical Parts List
  40
- Board Interconnections
  58
- Demodulator Schematic Diagram
  71
- S-P Converter Schematic Diagram [Hr-S6955Ms/S7955Ms]
  72
- Main Circuit Board
  73
- Demodulator Circuit Board
  76
- Waveforms
  77
- Voltage Charts
  78
- Remote Controller Schematic Diagram
  79
- System Control Block Diagram
  80
- Video Block Diagram
  81
- Audio Block Diagram
  83

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