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Yamaha Portable Grand DGX-305 Service Manual

Yamaha Portable Grand DGX-305
92 pages
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DGX-305/DGX-505
1
SERVICE MANUAL
PK
001720
HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. PDF- K7062 ’04.06
DGX-305
DGX-505
OPTION LW-16 Keyboard Stand
DGX-305 20040601-63000
DGX-505 20040601-88000
LW-16 20040601- 9000
(目次)
(総合仕様)
(パネルレイアウト)
(ユニットレイアウト&結線図)
(ユニットレイアウト&結線図)
(ブロックダイアグラム)
(分解手順)
(分解手順)
(LSI端子機能表)
(ICブロック図)
(シート基板図)
(テストプログラム)
(初期化)
(ユーザーデータのバックアップ)
(起動フローチャート)
(総回路図)
CONTENTS
SPECIFICATIONS .............................................. 3/4
PANEL LAYOUT ..................................... 5
DGX-305 CIRCUIT BOARD LAYOUT &WIRING ..................... 7
DGX-505 CIRCUIT BOARD LAYOUT &WIRING ..................... 9
BLOCK DIAGRAM .......................... 11
DGX-305 DISASSEMBLY PROCEDURE ........... 12
DGX-505 DISASSEMBLY PROCEDURE ........... 19
LSI PIN DESCRIPTION ............................. 26
IC BLOCK DIAGRAM .................................. 29
CIRCUIT BOARDS ....................................... 30
TEST PROGRAM ............................ 45/47
INITIALIZATION ....................................................... 50
USER DATA BACKUP
.......... 51/56
SYSTEM BOOTING FLOWCHART ................................... 61/62
MIDI IMPLEMENTATION CHART .......................................... 63
PARTS LIST
OVERALL CIRCUIT DIAGRAM

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Yamaha Portable Grand DGX-305 Specifications

General IconGeneral
Polyphony32
Voices361 XGlite voices
Styles135
EffectsReverb
Speakers12 cm x 2
Amplifiers6W + 6W
ConnectivityMIDI In/Out
Included AccessoriesMusic Rest

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