All rights reserved. No part of this publication may be reproduced in any form without the written permission
of ROLAND CORPORATION.
Printed in Japan (0400) (SC-MZ)17058507E0
Jul. 2007
AC-90
Table of Contents
Cautionary Notes ..............................................................2
Specications........................................................................2
Location of Controls .........................................................4
Location of Controls Parts List........................................5
Exploded View (Cabinet).................................................6
Exploded View (Cabinet) Parts List ...............................7
Exploded View (Chassis) .................................................8
Exploded View (Chassis) Parts List................................9
Parts List ...........................................................................10
Verifying the Version Number......................................14
Test Mode.........................................................................14
Block Diagram/Wiring Diagram..................................20
Circuit Board (Main, XLR Board)..................................22
Circuit Diagram (Main Board: Digital) ........................24
Circuit Diagram (Main Board: Analog, XLR Board)..26
Circuit Diagram (Main Board: Power Supply) ...........28
Circuit Board (Jack Board) .............................................30
Circuit Diagram (Jack Board) ........................................32
Circuit Board (Panel Board)...........................................34
Circuit Diagram (Panel Board)......................................36
Circuit Board
(
PS1 Board)..............................................38
Circuit Diagram (PS1 Board) .........................................39
Circuit Board (Amp Board)............................................40
Circuit Diagram (Amp Board).......................................42
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General
Weight and Dimensions
