Roland AC-90 - User Manual

SERVICE NOTES
Issued by RJA
Copyright © 2007 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 (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

Summary

Cautionary Notes

Specifications

Verifying the Version Number

Test Mode

Entry and operation of the diagnostic test mode for functional checks.

Version Display

DSP Test (Automatic Determination)

Switch Test

Signal-level Test (PCB State)

Signal-level Test (Product State)

Block Diagram;Wiring Diagram

Circuit Diagram (Main Board: Digital)

Circuit Diagram (Main Board: Analog, XLR Board)

Circuit Diagram (Main Board: Power Supply)

Circuit Diagram (Jack Board)

Circuit Diagram (Panel Board)

Circuit Diagram (PS1 Board)

Circuit Diagram (Amp Board)

Roland AC-90 Specifications

General

Product color	Black
Volume control	Rotary
Bass adjustment	Yes
Recommended usage	Studio
Multi-Room Streaming (MRS) support	-
Woofer diameter	200 mm
Number of drivers	4
Speaker placement	Floor
Audio output channels	1.0 channels
Number of tweeter drivers	2
Woofer diameter (imperial)	8 \
RMS rated power	90 W
Number of amplifier channels	2 channels
AirPlay	No
Audio (L/R) in	1
Headphone connectivity	6.3 mm
Connectivity technology	Wired
Power source type	AC
AC input frequency	50 - 60 Hz
Power consumption (typical)	30 W

Weight and Dimensions

Depth	303 mm
Width	464 mm
Height	326 mm
Weight	13900 g