Table of Contents
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Feb. 2010
Table of Contents
Cautionary Notes ..............................................................2
Specifications .....................................................................3
Location of Controls .........................................................4
Location of Controls Parts List........................................5
Exploded View (All) .........................................................6
Exploded View (All) Parts List........................................7
Plain View (1).....................................................................8
Plain View (1) Parts List ...................................................9
Plain View (2)...................................................................10
Plain View (2) Parts List .................................................11
Exploded View (Fig.A)...................................................12
Exploded View (Fig.A) Parts List .................................13
Plane View (Fig.A) ..........................................................14
Plane View (Fig.A) Parts List.........................................15
Parts List ...........................................................................16
Copyright © 2010 Roland Corporation
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of Roland Corporation.
Verifying the Version Number......................................18
Test Mode .........................................................................18
Block Diagram/Wiring Diagram ..................................20
Circuit Board (Main Board) ...........................................22
Circuit Diagram (Main Board: Power) .........................24
Circuit Diagram (Main Board: Digital) ........................26
Circuit Diagram (Main Board: Analog) .......................28
Phones Board) ..................................................................30
Circuit Diagram (Guitar Input Board) .........................32
Circuit Diagram (Mic Input Board) ..............................32
Circuit Diagram (Panel Board)......................................34
Circuit Diagram (Jack B Board).....................................36
Circuit Diagram (Phones Board)...................................37
17058652E0
SERVICE NOTES
Issued by RJA
AC-33
CC-KWS
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Summary of Contents for Roland AC-33
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Page 1: Table Of Contents
Circuit Diagram (Jack B Board)........36 Plane View (Fig.A) Parts List.........15 Circuit Diagram (Phones Board)........37 Parts List ................16 Copyright © 2010 Roland Corporation All rights reserved. No part of this publication may be reproduced in any form without the written permission of Roland Corporation. 17058652E0... -
Page 2: Cautionary Notes
• Because reissuance is restricted. • Because the part is made to order (at current market price). • Because it is carried in electronic data on the Roland web site. • Because it is a package or an accessory irrelevant to the function maintenance of the main body. -
Page 3: Specifications
MASTER knob POWER Switch * Printed matters will not be supplied after the end of the production. Then, download the electronic file from the Roland web site. Indicators * In the interest of product improvement, the specifications and/or appearance of REC/PLAY/OVERDUB this unit are subject to change without prior notice. -
Page 4: Location Of Controls
Feb. 2010 AC-33 Location of Controls fig.panel.eps... -
Page 5: Location Of Controls Parts List
Feb. 2010 AC-33 Location of Controls Parts List Part Code Part Name Description Q’ty 13449146 6.5MM JACK YKB21-5012 (W/SW) 5100004356 JACK NUT 5100011024 R-KNOB 08203-500 5100007826 ROTARY POTENTIOMETER RD901F-20E1-125F-1B100K-00D10A * This unit includes the following parts. ******** VR NUT M9... -
Page 6: Exploded View (All)
Feb. 2010 AC-33 Exploded View (All) fig.bunkaizu-all.eps Refer to Fig.A fig.speaker-e.eps ORANGE BROWN BLACK (5100010585) (5100010583) (5100010586) (5100010584) When detaching the chassis (Fig. A), remove the following screws. • In Plain View (1) (p. 8), the 4 screws at j in View 2 •... -
Page 7: Exploded View (All) Parts List
Feb. 2010 AC-33 Exploded View (All) Parts List Part Code Part Name Description Q’ty 5100009315 CABINET ASSY * This unit includes the following parts. ******** CABINET ******** CATCH ******** ABSORPTIVE FOAM 5100006069 RUBBER FOOT D25XT18 40484-512(#SD001005) ******** STAND 5100009863 STAND HOLDER... -
Page 8: Plain View (1)
Feb. 2010 AC-33 Plain View (1) fig.bunkaizu-1.eps View 1 View 2... -
Page 9: Plain View (1) Parts List
Feb. 2010 AC-33 Plain View (1) Parts List View 1 Part Code Part Name Description Q’ty 40019023 SCREW 4X20 BINDING TAPPING A BZC View 2 Part Code Part Name Description Q’ty 40237101 SCREW M3X8 PAN MACHINE W/SW+SMALL PW BZC 40011312... -
Page 10: Plain View (2)
Feb. 2010 AC-33 Plain View (2) fig.bunkaizu-2.eps View 3 View 4... -
Page 11: Plain View (2) Parts List
Feb. 2010 AC-33 Plain View (2) Parts List View 3 Part Code Part Name Description Q’ty 40011312 SCREW 3X8 BINDING TAPTITE P FE BZC 40564601 SCREW M5X35 OVALHEAD MACHINE BZC View 4 Part Code Part Name Description Q’ty 40010678 SCREW 4X20... -
Page 12: Exploded View (Fig.a)
Feb. 2010 AC-33 Exploded View (Fig.A) fig.bunkaizu-A-e.eps Wind the wiring (#5100010579) around the power switch and solder. Orientation of the wiring Solder 2 locations (wound) * The end of the wire must not extend below the connector. White spot Black... -
Page 13: Exploded View (Fig.a) Parts List
Feb. 2010 AC-33 Exploded View (Fig.A) Parts List Part Code Part Name Description Q’ty 5100010579 WIRING 192-AP011-W4 5100010457 DC PLUG SUPPORTER 5100009366 MAIN PWB BOARD ASSY 5100009323 PANEL PWB SHEET ASSY * This unit includes the following parts. ******** PHONES BOARD... -
Page 14: Plane View (Fig.a)
Feb. 2010 AC-33 Plane View (Fig.A) fig.bunkaizu-3.eps View A1 View A2 View A3 View A4... -
Page 15: Plane View (Fig.a) Parts List
Feb. 2010 AC-33 Plane View (Fig.A) Parts List View A1 Part Code Part Name Description Q’ty 40012867 SCREW M3X8 PAN MACHINE W/SW+PW ZC View A2 Part Code Part Name Description Q’ty 40012867 SCREW M3X8 PAN MACHINE W/SW+PW ZC 5100011021 STANDOFF... -
Page 16: Parts List
Feb. 2010 AC-33 Parts List fig.-part1-e.eps Due to one or more of the following reasons, Safety Precautions: parts with parts code ******** cannot be supplied as service parts. The parts marked have safety-related characteristics. Use only listed parts for replacement. - Page 17 Feb. 2010 AC-33 WIRING, CABLE 5100010578 WIRING 192-AP011-W3 5100010579 WIRING 192-AP011-W4 5100010583 WIRING 196-AP011-W8 5100010584 WIRING 196-AP011-W9 5100010585 WIRING 196-AP011-W10 5100010586 WIRING 196-AP011-W11 SCREWS 40012867 SCREW M3X8 PAN MACHINE W/SW+PW ZC 40237101 SCREW M3X8 PAN MACHINE W/SW+SMALL PW BZC 40128012...
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Page 18: Verifying The Version Number
Feb. 2010 AC-33 Verifying the Version Test Mode Number Items Required Items Required • Foot switches (BOSS FS-5U) x 2 • Foot-switch connection cable (PCS-31) x 1 • Foot switches (BOSS FS-5U) x 2 • Level meter (used only during signal-level testing) •... - Page 19 Feb. 2010 AC-33 2. Switch Test Carry out operations in the sequence shown below, and check the status of the corresponding LEDs. Operation REC LED PLAY LED OVERDUB LED POWER LED (Initial state) Set MIC/LINE CHANNEL CHORUS to SPACE. Set MIC/LINE CHANNEL CHORUS to WIDE.
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Page 20: Block Diagram/Wiring Diagram
Feb. 2010 AC-33 Block Diagram/Wiring Diagram fig.block.eps@L... - Page 21 Feb. 2010 AC-33 fig.block.eps@R Part Code Part Name Description Q’ty ******** WIRING 192-AP011-W11B included in GT Input Board ******** WIRING 192-AP011-W6 included in Mic Input Board 5100010583 WIRING 196-AP011-W8 included in Main Board 5100010584 WIRING 196-AP011-W9 included in Main Board...
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Page 22: Circuit Board (Main Board)
Feb. 2010 AC-33 Circuit Board (Main Board) fig.b-main-1.eps... - Page 23 Feb. 2010 AC-33 fig.b-main-2.eps...
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Page 24: Circuit Diagram (Main Board: Power)
Feb. 2010 AC-33 Circuit Diagram (Main Board: Power) fig.d-main-power.eps@L... - Page 25 Feb. 2010 AC-33 fig.d-main-power.eps@R...
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Page 26: Circuit Diagram (Main Board: Digital)
Feb. 2010 AC-33 Circuit Diagram (Main Board: Digital) fig.d-main-digital.eps@L... - Page 27 Feb. 2010 AC-33 fig.d-main-digital.eps@R...
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Page 28: Circuit Diagram (Main Board: Analog)
Feb. 2010 AC-33 Circuit Diagram (Main Board: Analog) fig.d-main-analog.eps@L 0.52Vrms 0.23Vrms 0.14Vrms 0.78Vr 0.52Vrms 0.46Vrms 0.14Vrms 0.78Vrm 0.14Vrms 0.14Vrms... - Page 29 Feb. 2010 AC-33 fig.d-main-analog.eps@R 1.30Vrms 1.30Vrms 2.90Vrms 2.90Vrms...
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Page 30: Circuit Board (Guitar Input, Mic Input, Panel, Jack B, Phones Board)
Feb. 2010 AC-33 Circuit Board (Guitar Input, Mic Input, Panel, Jack B, Phones Board) fig.b-panel.eps... - Page 31 Feb. 2010 AC-33...
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Page 32: Circuit Diagram (Guitar Input Board)
Feb. 2010 AC-33 Circuit Diagram (Guitar Input Board) fig.d-guitar-input.eps@L 0.25Vrms 0.23Vrms Circuit Diagram (Mic Input Board) fig.d-mic-input.eps@L 0.0062Vrms R410 5.6k V_MC+10V R418 5.6k D402 AGND_MC AGND_MC 0.0123Vrms 1SS133 T-77(PB FREE) MIC/LINE INPUT R400 D403 1SS133 T-77(PB FREE) C413 180pF 0.0123V... - Page 33 Feb. 2010 AC-33 fig.d-guitar-input.eps@R 0.23Vrms fig.d-mic-input.eps@R Vrms VR400 100kB R417 RD901F-20E1-125F-1B100K-00D10A 2.2k C416 R407 V_MC+10V To MAIN BOARD CN7 R419 100k IC400 NJM14558D A+10V C417 cH2_SIG V_MC+1_2V AGND 10uF C423 CN400 B2011H02-3P V_MC+10V 0.1uF FGND_MC AGND_MC V_MC+1_2V R421 0.46Vrms C407...
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Page 34: Circuit Diagram (Panel Board)
Feb. 2010 AC-33 Circuit Diagram (Panel Board) fig.d-panel.eps@L... - Page 35 Feb. 2010 AC-33 fig.d-panel.eps@R...
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Page 36: Circuit Diagram (Jack B Board)
Feb. 2010 AC-33 Circuit Diagram (Jack B Board) fig.d-jackB.eps... -
Page 37: Circuit Diagram (Phones Board)
Feb. 2010 AC-33 Circuit Diagram (Phones Board) fig.d-phones.eps 0.87Vrms...
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