SERVICE NOTES
Issued by RJA
Copyright © 2004 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of ROLAND CORPORATION.
Printed in Japan (0500) (AS)17058309E0
Dec.2004
GT-8
TABLE OF CONTENTS
CAUTIONARY NOTES........................................................ 2
SPECIFICATIONS................................................................. 2
LOCATION OF CONTROLS............................................... 4
LOCATION OF CONTROLS PARTS LIST ....................... 6
EXPLODED VIEW ................................................................ 8
EXPLODED VIEW PARTS LIST ....................................... 10
WIRING DIAGRAM........................................................... 11
WIRING DIAGRAM PARTS LIST.................................... 11
PARTS LIST.......................................................................... 12
CHECKING THE VERSION NUMBER........................... 17
USERS DATA SAVE AND LOAD.................................... 17
FACTORY RESET INSTRUCTIONS .................................18
SYSTEM SOFTWARE UPDATING INSTRUCTIONS....19
TEST MODE.......................................................................... 19
BLOCK DIAGRAM .............................................................24
CIRCUIT BOARD (MAIN SHEET) ...................................26
CIRCUIT DIAGRAM (MAIN SHEET 1/3) (Power) .......30
CIRCUIT DIAGRAM (MAIN SHEET 2/3) (Jack) ...........32
CIRCUIT DIAGRAM (MAIN SHEET 2/3) (Digital) ......34
CIRCUIT BOARD (SW SHEET).........................................36
CIRCUIT DIAGRAM (SW SHEET) ...................................38
ERROR MESSAGES............................................................. 40
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