SERVICE MANUAL
■ CONTENTS（目次）
SPECIFICATIONS（仕様）....................................................................... 3/5
DIMENSIONS（寸法図）...............................................................................7
PANEL LAYOUT（パネルレイアウト）........................................................8
CIRCUIT BOARD LAYOUT（ユニットレイアウト）.............................. 12
DISASSEMBLY PROCEDURE（分解手順）........................................... 13
LSI PIN DESCRIPTION（LSI 端子機能表）............................................ 21
IC BLOCK DIAGRAM（IC ブロック図）.................................................. 33
CIRCUIT BOARDS（シート基板図）....................................................... 36
UPDATAING FIRMWARE（ファームウェアのアップデート）........ 52/54
INSPECTIONS（検査）.........................................................................56/61
TEST PROGRAM（テストプログラム）.............................................66/83
TROUBLE DIAGNOSIS（故障診断について）.............................. 100/101
DISPLAY MESSAGES（ディスプレイメッセージ）.................... 102/103
ABOUT CONNECTIONS WITH EXTERNAL DEVICES WHEN USING
THE O1X WITH A COMPUTER..................................................... 104
MIDI IMPLEMENTATION CHART .................................................. 105
MIDI DATA FORMAT ...................................................................... 106
PARTS LIST
BLOCK DIAGRAM（ブロックダイアグラム）
OVERALL CONNECTOR CIRCUIT DIAGRAM
（総コネクタ接続回路図）
OVERALL CIRCUIT DIAGRAM（総回路図）
Copyright (c) Yamaha Corporation. All rights reserved. PDF-K8542 Printed in Japan ’04.01
SY 011705
20031125-179000
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