Hitachi VK-K274E Manuals

Table of Contents

• • 3

    Notes When Using Service Manual
  • 4

    Table of Contents

• 5

  Chapter 1 GENERAL INFORMATION

  • 5

    Specifications
  • 6

    Comparison with Previous Model
    • 6

      Comparison of Specifications
    • 6

      Comparison of Ics

• 7

  Chapter 2 Disassembly

  • 7

    Procedure

• 8

  Chapter 3 Electric Circuit Adjustment

  • 8

    Test Equipment/Jigs Necessary for Adjustment
    • 8

      List of Equipment and Jigs
    • 8

      List of Charts for Adjustment
    • 8

      Test Equipment, Etc
  • 9

    Before Stating Adjustment
    • 9

      Connections for Adjustment
    • 9

      Notes
    • 10

      Setting Test Equipment
  • 11

    List of Adjustment Items
  • 11

    Data Initilize
  • 12

    Starting Adjustment Program (SMAP)
  • 13

    Data Initilize Procedure
    • 13

      Data Initialize
  • 14

    Electronic Volume Adjustment Procedure
    • 14

      CDS Sampling Pulse Adjustment
  • 15

    Camera Adjustment (Adjustment) Procedure
    • 15

      Auto Iris Control Adjustment
    • 15

      Matrix Adjustment [For TYPE S/SE]
    • 16

      White Balance Adjustment [For TYPE S/SE]
    • 17

      Chroma Gain Adjustment [For TYPE S/SE]
  • 18

    Autofocus Adjustment Procedure
    • 18

      Zoom/Focus Tracking Adjustment
    • 19

      AF Noise Level Adjustment
    • 19

      Check of Zoom Trace
  • 20

    Spot Noise Adjustment Procedure
    • 20

      Spot Noise Adjustment
  • 21

    Error Messages
    • 21

      Error Massage of Electronic Volume and Camera Adjustment
    • 22

      Error Massage of Autofocus Adjustment
    • 22

      Error Massage of Spot Noise Adjustment
    • 22

      Troubleshooting of Autofocus
    • 23

      No Zoom and Focus Operation
    • 25

      No Focus Lens Operation
    • 26

      No Zoom Operation
    • 27

      No Autofocus Operation
    • 28

      Subject Is Greatly Out-Of-Focus When Zoomed

• 8

  Chapter 6 SCHEMATIC, CIRCUIT

• 29

  Chapter 4 Exploded View

• 30

  Chapter 5 Replacement Parts List

  • 30

    Mechanical Parts List
  • 30

    Electrical Parts List
  • 34

    Connection Diagram
  • 34

    Waveforms
  • 35

    Sensor [SP]
  • 39

    Switching Regulator [CSR]
    • 40

      Identification of Parts Location
  • 44

    Block Diagrams Overall
    • 45

      Microprocessor Pin Function Tables
  • 45

    Digital Microprocessor (IC1201: D-Μp)