NEC AccuSync 90 Manuals

Table of Contents

• 3

  Table of Contents

  • 1

    Service Manual
  • 4

    Specifications
  • 5

    Controls
  • 7

    Serial Number Information
  • 8

    Disassembly

• 9

  Adjustment Specifications

  • • 10

      Adjustment Tools
    • 10

      B+ Adjustment
    • 10

      Definition for Normal Condition
    • 10

      Timing Table
    • 11

      Adjustment
    • 11

      Free Run Adjustment
    • 11

      H-Center Adjustment
    • 11

      H-Size Adjustment
    • 11

      Mode 11 Pre-Adjustment
    • 11

      X-Ray Test
    • 12

      Automatically Adjust
    • 12

      Convergence Adjust
    • 12

      Focus Adjust
    • 12

      White Balance Adjustment
    • 12

      White Balance Check and ABL Adjust
    • 13

      DCC 1/2B Test
    • 13

      Power Saving Test
    • 14

      Timing Table
      • 17

        Pnp Communication

  • 17

    1 Construction of System

  • 17

    2 EDID Write and Inspection Method

  • 18

    3 EDID Data File

• 20

  Trouble Shooting

  • 21

    No Operation, Power Led Flash
  • 22

    No Operation, Power Led Off
  • 23

    Video Noise, Unsynchronous
  • 24

    No Video
  • 25

    No Raster
  • 26

    Trouble in H.V Sync
  • 27

    Pincushion Poor
  • 28

    Focus Poor

• 29

  N9902 Theory of Circuit Operation

  • 29

    Theory of Circuit Description
  • 30

    Micro Controller System
  • 30

    Power Supply
  • 30

    Video Circuit & OSD
  • 31

    Horizontal Deflection
  • 31

    Vertical Deflection
  • 32

    FBT Secondary & Dynamic Focus
    • 33

      Multisync V920
  • 33

    Replacement Parts List
    • 56

      Multisync V921-1
    • 58

      Multisync 95
    • 60

      Accusync 90
    • 62

      Accusync 90M
  • 65

    Block Diagram
  • 66

    Schematic
    • 66

      Video Board
    • 67

      Main Board