Yamaha DGX 640 640C 640W Digital Piano Service Manual & Repair Guide

This service and repair guide will provide you with in-depth technical information in order to fix, repair and/or troubleshoot this great keyboard the absolute best way there is!

You will receive in-depth technical information about:
Specifications
Panel Layout
Circuit Board Layout & Wiring
Block Diagram
Disassembly Procedure
Lsi Pin Description
Ic Block Diagram
Circuit Boards
Test Program
Initialization
User Data Backup
Midi Implementation Chart
Midi Data Format
Parts List
Overall Circuit Diagram

Fully illustrated with pictures and step-by-step instructions!

Format: PDF
Pages: 67

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