SERVICE NOTES
Issued by RJA
Copyright © 2003 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 (0800) (AS)17058163E0
May 2003 RS-70
TABLE OF CONTENTS
SPECIFICATIONS.............................................................2
LOCATION OF CONTROLS ..........................................4
LOCATION OF CONTROLS PARTS LIST ...................5
EXPLODED VIEW ............................................................6
EXPLODED VIEW PARTS LIST .....................................7
PARTS LIST........................................................................8
CHECKING THE VERSION NUMBER.......................14
USERS DATA SAVE AND LOAD................................14
TEST MODE.....................................................................14
RESTORING THE FACTORY SETTINGS...................18
SYSTEM SOFTWARE UPDATE PROCEDURE .........18
KEYBOARD PARTS LIST..............................................20
KEYBOARD CIRCUIT BOARD....................................21
KEYBOARD CIRCUIT DIAGRAM ..............................21
KEYBOARD DISASSEMBLY.........................................22
BLOCK DIAGRAM.........................................................26
CIRCUIT BOARD(Main Board) ....................................28
CIRCUIT BOARD(Main Board) ....................................30
CIRCUIT DIAGRAM(MAIN(MICOM, Memory)).....32
CIRCUIT DIAGRAM(MAIN(SH2GA, Panel I/F,
Controller I/F))................................................................34
CIRCUIT DIAGRAM(MAIN(Tone Generator, DAC,
Output)) ............................................................................36
CIRCUIT DIAGRAM(MAIN(Power Supply, Keyboard
I/F)) ...................................................................................38
CIRCUIT DIAGRAM(MAIN(FDD I/F, USB I/F)).....40
CIRCUIT BOARD(PWB PANEL R ASSY/PWB PANEL
L ASSY/PWB PS ASSY) .................................................42
CIRCUIT DIAGRAM(PWB PANEL R ASSY/PWB
PANEL L ASSY/PWB PS ASSY)...................................44
ERROR MESSAGES........................................................46
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