Sony bg3r chassis kv-xa21m81 User Manuals

Table of Contents

• KV-XA21M81

  2
• SPECIFICATIONS

  3
• TABLE OF CONTENTS

  4
• SELF DIAGNOSTIC FUNCTION

  5
• GENERAL

  8
• DISASSEMBLY

  22
  • REAR COVER REMOVAL

    22
  • SPEAKER REMOVAL

    22
  • CHASSIS ASSY REMOVAL

    22
  • F BRACKET REMOVAL

    22
  • SERVICE POSITION

    22
  • REPLACEMENT OF PARTS

    22
    • Replacement of Light Guide

      22
    • Replacement of Power Button

      22
  • TERMINAL BRACKET REMOVAL

    23
  • V1 BOARD REMOVAL

    23
  • PICTURE TUBE REMOVAL

    24
• SET-UP ADJUSTMENTS

  25
  • BEAM LANDING

    25
  • CONVERGENCE

    26
  • FOCUS ADJUSTMENT

    28
  • G2 (SCREEN)AND WHITE BALANCE ADJUSTMENTS

    28
  • PICTURE QUALITY ADJUSTMENTS

    34
  • DEFLECTION ADJUSTMENT

    34
  • A BOARD ADJUSTMENT AFTER IC003 (MEMORY)REPLACEMENT

    34
  • PICTURE DISTORTION ADJUSTMENT

    35
• DIAGRAMS

  36
  • BLOCK DIAGRAM

    36
  • CIRCUIT BOARDS LOCATION

    37
  • SCHEMATIC DIAGRAM

    38
    • C1 and F Boards Schematic Diagrams

      39
    • V1 Board Schematic Diagram

      42
  • VOLTAGE MEASUREMENT

    43
    • A(1/2) BOARD VOLTAGE LIST

      43
    • C1 BOARD VOLTAGE LIST

      44
  • WAVEFORMS

    45
    • A BOARD WAVEFORMS

      45
    • C1 BOARD WAVEFORMS

      45
  • PRINTED WIRING BOARDS AND PARTS LOCATION

    46
    • – A Board –

      46
    • – C1 Board –

      47
    • – F Board –

      47
    • – V1 Board –

      48
  • SEMICONDUCTORS

    49
• EXPLODED VIEWS

  51
  • PICTURE TUBE

    51
  • CHASSIS

    52
• ELECTRICAL PARTS LIST

  53