Yamaha Disklavier MPX100II User Manual

D
With Silent Function
Service Manual
MPX100II
Upright Piano

Yamaha Disklavier MPX100II Specifications

General

Brand	Yamaha
Model	Disklavier MPX100II
Category	Musical Instrument
Language	English

Summary

Important Safety and Service Notices

Technical Specifications

System Layout and Wiring

Panel Layout Overview

Diagram of controls and connections on the piano's panel.

Unit Location and Wiring

Internal component placement and electrical wiring diagram.

Maintenance and Disassembly Procedures

General Unit Disassembly

Steps for disassembling main units like Hammer Sensor, MN, Sub-Power, MD.

Component Board Removal

Procedures for removing Switch Box, HP, and CTRL IN boards.

Component Identification and Diagrams

LSI Pin Descriptions

Pin assignments for key ICs (CPU, DAC, CVG).

IC Block Diagrams and Board Views

Visual diagrams of IC connections and circuit boards.

Operational Modes and Diagnostics

Test Mode Operations

Procedures for Control, PK CTL, and Sensor sheet tests.

Error History and Display

Viewing and clearing error codes.

MIDI Communication

MIDI Data Format

Details on MIDI messages, channels, and data types.

MIDI Implementation Chart

Summary of MIDI protocol support.

Parts List and Component Details

Parts List Overview

Introduction to parts list sections.

Detailed Unit Parts

Listings for electrical parts and specific assemblies.

Circuit Diagrams

Core System Circuit Diagrams

Schematics for Controller, Panel, Sensor, Key signal paths.

Drive, Power, and MIDI Circuit Diagrams

Schematics for Drive systems, PK-CTL, Pedal, Power Supply, MIDI.

MN, HP, Motor, and Block Diagrams

Schematics for MN, HP, Motor, and system block diagram.