Yamaha Disklavier DKC55RCD XG Mark III Manuals

Table of Contents

• 1

  Contents
• 3

  Protection of Eyes from Laser Beam During Servicing
• 5

  Specifications
• 6

  Function and Controls
• 7

  Basic Structure
• 8

  New Functions
• 8

  CD-ROM Drive
• 8

  Expanded Memory and Programs
• 8

  Smartkey System
• 9

  Unit Layout
• 11

  Panel Layout
• 11

  Front Panel
• 11

  Rear Panel
• 12

  Switch Box
• 12

  Remote Controller
• 13

  Amplifier Unit
• 14

  Disassembly
• 24

  LSI Pin Description
• 32

  IC Block Diagram
• 36

  Circuit Boards
• 50

  Maintenance Mode (Menu)
• 51

  Test Pattern Play and Check - Check Playability
• 53

  Keyboard Adjustment
• 54

  Sustain Pedal Measurement, Half Point Adjustment
• 55

  Soft Pedal Measurement
• 56

  Principles of Pedal Maintenance
• 57

  Pedal Adjustment Procedure Label
• 59

  Keyboard Measurement - Re-Writing of Table Data for Keyboard
• 60

  Keyboard (Sound-Output) Timing Adjustment
• 61

  Piano Tables Condition - Piano Tables Condition/Pass Number Check
• 62

  Display EEP-ROM Data (on the PK-CTL Board)
• 62

  Pedal Play/Rec Mode
• 63

  Keyboard-Return Damping Adjustment
• 64

  Test Mode
• 66

  Control Sheet
• 67

  PK-CTL Sheet
• 67

  Error History
• 68

  Sensor Sheet
• 69

  Error Messages
• 70

  Program Update
• 71

  Pass Numbers and Error Messages
• 74

  Troubleshooting
• 76

  MIDI Implementation Chart
• 77

  Overall Circuit Diagram
• 109

  Block Diagram
• 111

  Wiring Diagram
• 113

  Parts List
• 114

  Unit Comparison between Models
• 119

  Overall Assembly Diagram
• 124

  Amplifier Unit Diagram and Parts List
• 127

  Hammer Sensor Unit
• 128

  Control Unit Diagram and Parts List
• 131

  Panel Unit Exploded View and Parts List
• 132

  Key Drive Unit View and Parts List
• 134

  Key Sensor Unit View and Parts List
• 135

  MD Unit View and Parts List
• 136

  Pedal Drive Unit Exploded View and Parts List
• 138

  Switch Box Unit View and Parts List
• 139

  Speaker Box Assembly View and Parts List
• 141

  Electrical Parts List