ROLAND — Table of Contents

May.

2008 DD-7 SERVICE NOTES Issued by RJA Table of Contents Cautionary Notes ..............................................................2 Main Specifications...........................................................3 Location of Controls .........................................................4 Location of Controls Parts List........................................4 Exploded View ..................................................................5 Exploded View Parts List.................................................5 Parts List.............................................................................6 Verifying the Version Number........................................8 Performing a Factory Reset..............................................8 Updating the System ........................................................8 Test Mode...........................................................................9 Circuit Board (Main Board) ...........................................17 Circuit Diagram (Main Board:

Analog) .......................18 Circuit Diagram (Main Board: Digital) ........................20 Copyright © 2008 Roland Corporation All rights reserved. No part of this publication may be reproduced in any form without the written permission of Roland Cororation. Printed in Japan (0290) (CC-KWS) 17058564E0