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JVC HR-J673EU
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of JVC HR-J673EU Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Table of Contents
    1. DISASSEMBLY
      1. DISASSEMBLY FLOW CHART
      2. HOW TO READ THE DISASSEMBLY AND ASSEMBLY
      3. DISASSEMBLY/ASSEMBLY METHOD
      4. SERVICE POSITION
        1. How to Take out the Mechanism and Main Board Assemblies
      5. MECHANISM SERVICE MODE
        1. How to Set the "MECHANISM SERVICE MODE"
      6. EMERGENCY DISPLAY FUNCTION
        1. Displaying the Emergency Information
        2. Clearing the Emergency History
        3. Emergency Content Description
        4. Emergency Detail Information (1)
        5. Emergency Detail Information (2)
      7. SYSCON CIRCUIT
        1. Syscon CPU Pin Function (IC 3001)
    2. MECHANISM ADJUSTMENT
      1. BEFORE STARTING REPAIR AND ADJUSTMENT
        1. Precautions
        2. Checking for Proper Mechanical Operations
        3. Manually Removing the Cassette Tape
        4. Jigs and Tools Required for Adjustment
        5. Maintenance and Inspection
      2. REPLACEMENT OF MAJOR PARTS
        1. Before Starting Disassembling (Phase Matching Between Mechanical Parts)
        2. How to Set the Mechanism Assembling Mode
        3. Cassette Holder Assembly
        4. Pinch Roller Arm Assembly
        5. Guide Arm Assembly and Press Lever Assembly
        6. Audio Control Head
        7. Loading Motor
        8. Capstan Motor
        9. Pole Base Assembly (Supply or Take - up Side)
        10. Rotary Encoder
        11. Clutch Unit
        12. Change Lever Assembly, Direct Gear and Clutch Gear
        13. Link Lever
        14. Cassette Gear, Control Cam and Worm Gear
        15. Control Plate
        16. Loading Arm Gear (Supply or Take - up Side) and Loading Arm Gear Shaft
        17. Take - up Lever, Take - up Head and Control Plate Guide
        18. Capstan Brake Assembly
        19. Sub Brake Assembly (Take - up Side)
        20. Main Brake Assembly (Take - up Side), Reel Disk (Take - up Side) and Main Brake Assembly (Supply Side)
        21. Tension Brake Assembly, Reel Disk (Supply Side) and Tension Arm Assembly
        22. Idler Lever, Idler Arm Assembly
        23. Stator Assembly
        24. Rotor Assembly
        25. Upper Drum Assembly
      3. COMPATIBILITY ADJUSTMENT
        1. Checking/Adjustment of FM Waveform Linearity
        2. Checking/Adjustment of the Height and Tilt of the Audio Control Head
        3. Checking/Adjustment of the Audio Control Head Phase (X - Value)
        4. Checking/Adjustment of the Standard Tracking Preset
        5. Checking/Adjustment of the Tension Pole Position
    3. ELECTRICAL ADJUSTMENT
      1. PRECAUTION
        1. Required test Equipments
        2. Required Adjustment Tools
        3. Colour Bar Signal, Colour Bar Pattern
        4. Switch Settings and Standard Precautions
      2. SERVO CIRCUIT
        1. Switching Point
        2. Slow Tracking Preset
      3. VIDEO CIRCUIT
        1. AUTO PICTURE Initial Setting
      4. SYSCON CIRCUIT [HR - J670EU/HR - J770EU]
        1. Timer Clock
    4. CHARTS AND DIAGRAMS
      • NOTES OF SCHEMATIC DIAGRAM
      • CIRCUIT BOARD NOTES
      1. BOARD INTERCONNECTIONS
      2. VIDEO/AUDIO SCHEMATIC DIAGRAM
      3. ON SCREEN SCHEMATIC DIAGRAM
      4. SYSTEM CONTROL SCHEMATIC DIAGRAM
      5. SWITCHING REGULATOR SCHEMATIC DIAGRAM
      6. TUNER SCHEMATIC DIAGRAM
      7. DISPLAY, MINI OPE AND SHUTTLE SCHEMATIC DIAGRAMS
      8. TERMINAL AND R.PAUSE SCHEMATIC DIAGRAMS
      9. DEMODULATOR SCHEMATIC DIAGRAM
      10. MAIN, A/C HEAD, R.PAUSE, SHUTTLE, MINI OPE AND LOADING MOTOR CIRCUIT BOARDS
      11. DEMODULATOR CIRCUIT BOARD
      12. FDP GRID ASSIGNMENT AND ANODE CONNECTION
      13. REMOTE CONTROL SCHEMATIC DIAGRAM
      14. VOLTAGE CHARTS
      15. SYSTEM CONTROL BLOCK DIAGRAM
      16. VIDEO BLOCK DIAGRAM
      17. AUDIO BLOCK DIAGRAM
    1. PARTS LIST
      1. PACKING AND ACCESSORY ASSEMBLY <M1>
      2. CABINET AND CHASSIS ASSEMBLY <M2>
      3. MECHANISM ASSEMBLY <M4>
      4. ELECTRICAL PARTS LIST
      • MAIN BOARD ASSEMBLY <03>
      • AUDIO CONTROL HEAD BOARD ASSEMBLY <12>
      • DEMOD BOARD ASSEMBLY <14>
      • MINI OPE. BOARD ASSEMBLY(J670EK/J670EU) <28>
      • LOADING MOTOR BOARD ASSEMBLY <55>
      • SHUTTLE BOARD ASSEMBLY (J770EK/J770EU) <85>
      • R. PAUSE BOARD ASSEMBLY <91>
    • DIFFERENT - TABLE
    1. CHARTS AND DIAGRAMS (4 - 1 to 4 - 3)
      1. DEMODULATOR CIRCUIT BOARD
      2. DEMODULATOR SCHEMATIC DIAGRAM
    2. PARTS LIST (5 - 1 Only)
      1. ELECTRICAL PARTS LIST
    • DEMODULATOR BOARD ASSEMBLY <14>
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