Yamaha Portable Grand DGX-630 Service Manual

SERVICE MANUAL
HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. ’08.04
CL 001802
CONTENTS（目次）
SPECIFICATIONS（総合仕様）.............................................. 3/4
BLOCK DIAGRAM（ブロックダイアグラム）........................... 5
PANEL LAYOUT（パネルレイアウト）................................... 6/8
CIRCUIT BOARD LAYOUT & WIRING
（ユニットレイアウト＆結線図）........................................... 10
DISASSEMBLY PROCEDURE（分解手順）............................ 12
LSI PIN DESCRIPTION（LSI 端子機能表）............................. 23
IC BLOCK DIAGRAM （IC ブロック図）................................. 27
CIRCUIT BOARDS（シート基板図）...................................... 28
TEST PROGRAM（テストプログラム）............................ 39/43
INITIALIZATION（初期化）................................................. 48/49
USER DATA BACKUP（ユーザーデータのバックアップ） .... 50/55
MIDI IMPLEMENTATION CHART
（MIDI インプリメンテーションチャート）............................ 60
MIDI DATA FORMAT ............................................................... 61
PARTS LIST
OVERALL CIRCUIT DIAGRAM（総回路図）
DIGITAL PIANO
DGX-630 YPG-635
As for an optional LP-7 pedal unit,
refer to the LP-7 service manual
(CL 001803 ).
オプションの PedalUnitLP-7 は、
サービスマニュアルCL001803
をご覧下さい。

Yamaha Portable Grand DGX-630 Specifications

General

Keyboard Type	Graded Hammer Standard (GHS) keyboard
Number of Keys	88
Touch Sensitivity	Hard/Medium/Soft/Fixed
Voices	500
Styles	160
Onetouch Setting	Yes
Lesson/Guide	Yamaha Education Suite (YES)
Lyrics Display Function	Yes
Score Display Function	Yes
Headphones	Yes
Speakers	12cm x 2 + 5cm x 2
Polyphony	64
Featured Voices	Live! / Cool! / Sweet! Voices
Effects	Reverb, Chorus, DSP
Sequencer	Yes
Compatible Data Format	SMF (Format 0)
Registration Memory	Yes
Display	320 x 240 dots LCD
USB	USB TO HOST
Amplifiers	6W x 2
Weight	22.5 kg
Included Accessories	Music Rest
Data Capacity	Approx. 30, 000 notes for 1 User Song
Power Supply	Adaptor (PA-150 or equivalent recommended by Yamaha)