Sony RMT-V246 Manuals

Table of contents

• 3

  Table of Contents
• 4

  Service Note
• 5

  General
• 18

  Disassembly
• 18

  Upper Case Removal
• 18

  Board Removal
• 18

  Rear Panel Removal
• 18

  Front Panel Section Removal
• 19

  Board Removal (ED9)
• 19

  Control Switch Block Removal (ED9)
• 19

  Board Removal (ED8)
• 19

  Mechanism Deck Removal
• 20

  Power Block Removal
• 20

  Board Removal
• 21

  Internal Views
• 22

  Circuit Boards Location
• 23

  Block Diagrams
• 23

  Overall Block Diagram
• 24

  Video1 Block Diagram
• 25

  Video2 Block Diagram
• 26

  Servo/System Control Block Diagram
• 27

  Audio Block Diagram
• 28

  Tuner Block Diagram
• 29

  Mode Control Block Diagram
• 30

  Power Block Diagram
• 31

  Printed Wiring Boards and Schematic Diagrams
• 32

  Frame Schematic Diagram
  • 33

    Head Amp) Schematic Diagram
  • 33

    Printed Wiring Board
  • 36

    Video, Audio) Schematic Diagram
  • 39

    System Control) Schematic Diagram
  • 40

    Servo Control) Schematic Diagram
  • 41

    Bias, CTL) Schematic Diagram
  • 42

    Hi-Fi Audio) Schematic Diagram
  • 43

    OSD) Schematic Diagram
  • 44

    Printed Wiring Board
  • 47

    Schematic Diagrams
• 54

  System Control-Video Block Interface (MA-325 Board IC161)
• 54

  System Control-Servo Peripheral Circuit Interface (MA-325 Board IC161)
• 55

  System Control-Mechanism Block Interface (MA-325 Board IC161)
• 56

  System Control-System Control Peripheral Circuit Interface (MA-325 Board IC161)
• 56

  System Control-Hi-Fi Audio Block Interface (MA-325 Board IC161)
  • 57

    Servo/System Control Microprocessor Pin Function (MA-325 Board IC161)
• 58

  Timer/Tuner Control Microprocessor Pin Function (FR-137 Board IC301)
• 60

  Error Code
• 61

  Adjustments
• 61

  Mechanical Adjustments
• 61

  EEP ROM Initial Data Input
• 61

  Electrical Adjustments
  • 61

    Pre-Adjustment Preparations
• 61

  Instruments to Be Used
• 62

  Set-up of Adjustment
• 62

  Alignment Tapes
• 62

  Specified I/O Level and Impedance
  • 62

    Input/Output Terminal
• 62

  Adjusting Sequence
• 62

  Power Supply Adjustment
• 63

  Servo System Adjustment
• 63

  RF Switching Position Adjustment
  • 63

    Audio System Adjustments
• 63

  Hi-Fi Audio System Adjustment
• 63

  AF Switching Position Adjustment
• 63

  Frequency Response Check
• 64

  Overall S/N Check
• 65

  Normal Audio System Adjustment
• 65

  ACE Head Adjustment
• 65

  E-E Output Level Check
• 65

  Frequency Responce Check
• 65

  Overall Level Characteristic and Distortion Factor Check
• 65

  Overall S/N Check
• 66

  Repair Parts List
• 66

  Exploded Views
• 66

  Front Panel and Cabinet Assemblies (ED8)
• 67

  Front Panel and Cabinet Assemblies (ED9)
• 68

  Chassis Assembly
• 69

  Mechanism Chassis Assembly (1)
• 70

  Mechanism Chassis Assembly (2)
• 71

  Mechanism Chassis Assembly (3)
• 72

  Electrical Parts List