Mar.2003 DD-20(T) SERVICE NOTES Issued by RJA TABLE OF CONTENTS SPECIFICATIONS.............................................................2 LOCATION OF CONTROLS ..........................................4 LOCATION OF CONTROLS PARTS LIST ...................5 EXPLODED VIEW ............................................................6 EXPLODED VIEW PARTS LIST .....................................9 PARTS LIST......................................................................10 CHECKING THE VERSION NUMBER.......................14 RESTORING THE FACTORY SETTINGS...................14 TEST MODE.....................................................................14 BLOCK DIAGRAM.........................................................22 CIRCUIT BOARD (JK-A) ...............................................24 CIRCUIT BOARD (JK-B)................................................25 CIRCUIT BOARD (PANEL-A)......................................26 CIRCUIT BOARD (PANEL-B).......................................27 CIRCUIT DIAGRAM (JACK) ........................................28 CIRCUIT DIAGRAM(PANEL)......................................30 Copyright © 2003 ROLAND CORPORATION All rights reserved.
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