Roland AC-90 Acoustic Chorus Service Manual 电路图.pdf

《Roland AC-90 Acoustic Chorus Service Manual 电路图.pdf》由会员分享，可在线阅读，更多相关《Roland AC-90 Acoustic Chorus Service Manual 电路图.pdf（35页珍藏版）》请在收音机爱好者资料库上搜索。

1、 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. 2007AC-90 Table of Contents Cautionary Notes.2 Specicatio

2、ns.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,

3、 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

4、Board).38 Circuit Diagram (PS1 Board).39 Circuit Board (Amp Board).40 Circuit Diagram (Amp Board).42 RadioFans.CN 收音机爱 好者资料库 2 Jul. 2007AC-90 Cautionary Notes Before beginning the procedure, please read through this document. The matters described may differ according to the model. No User Data This

5、 product cannot save user data. Backing up user data during servicing is not required. Part Replacement When replacing components near the power-supply circuit or a heat- generating circuit (such as a circuit provided with a heat sink or including a cement resistor), carry out the procedure accordin

6、g to the instructions with respect to the part number, direction, and attachment position (mounting so as to leave an air gap between the component and the circuit board, etc.). Parts List A component whose part code is * cannot be supplied as a service part because one of the following reasons appl

7、ies. Because it is supplied as an assembled part (under a different part code). Because a number of circuit boards are grouped together and supplied as a single circuit board (under a different part code). Because supply is prohibited due to copyright restrictions. Because reissuance is restricted.

8、Because the part is made to order (at current market price). Circuit Diagram In the circuit diagram, “NIU” is an abbreviation for “NOT IN USE.” The circuit board and circuit-board diagram show silkscreened indications, but no components are mounted. Specications AC-90:Acoustic Chorus Rated Power Out

9、put 45W + 45W Nominal Input Level (1 kHz) GUITAR Channel: -10 dBu MIC/LINE Channel: -50/-10 dBu AUX IN: -10 dBu Nominal Output Level (1 kHz) DI/TUNER OUT: +4 dBu LINE OUT: +4 dBu SUB WOOFER OUT: +4 dBu *0 dBu = 0.775 Vrms Speakers Woofer 20 cm (8 inches) x 2 Tweeter 8 cm x 5 cm (3 inches x 2 inches)

10、 x 2 Controls GUITAR Channe l PICKUP Switch (PIEZO/MAGNETIC) SHAPE Switch VOLUME Knob Equalizer Knobs (BASS, MIDDLE, TREBLE) CHORUS Switch MIC/LINE Channel PHANTOM Switch SELECT Switch (MIC/LINE) VOLUME Knob Equalizer Knobs (BASS, MIDDLE, TREBLE) CHORUS Switch CHORUS Knob REVERB/DELAY Knob ANTI-FEED

11、BACK FREQUENCY Knob START Button MUTE Switch MASTER Knob POWER Switch Indicator CHORUS (GUITAR Channel, MIC/LINE Channel) ANTI-FEEDBACK MUTE POWER Connectors GUITAR Input Jack (1/4 inch TRS phone type) MIC/LINE Input Jack (XLR type, 1/4 inch TRS phone type) AUX IN Jacks (RCA phono type, 1/4 inch pho

12、ne type) DI/TUNER OUT Jack (1/4 inch TRS phone type) LINE OUT Jacks (XLR type, 1/4 inch phone type) SUB WOOFER OUT Jack (1/4 inch phone type) PHONES Jack (1/4 inch stereo phone type) FOOT SWITCH Jack (1/4 inch TRS phone type) Power Supply AC 117 V, AC 230 V, AC 240 V (50/60 Hz) Power Consumption 30

13、W Dimensions 464 (W) x 303 (D) x 326 (H) mm 18-5/16 (W) x 11-15/16 (D) x 12-7/8 (H) inches Weight 11.7 kg 25 lbs 13 oz RadioFans.CN 收音机爱 好者资料库 3 Jul. 2007AC-90 Accessories Carrying Case (#SD000999) Owners Manual (multi-languages E/G/F/I/S/P/D) (#SD000994) Options Owners Manual (Japanese/#SD000992) F

14、oot Switch:BOSS FS-5L (Mute On/Off) BOSS FS-5U BOSS FS-6 Connection Cable: PCS-31 *In the interest of product improvement, the specifications and/ or appearance of this unit are subject to change without prior notice. RadioFans.CN 收音机爱 好者资料库 4 Jul. 2007AC-90 Location of Controls fig.panel.eps 5 Jul.

15、 2007AC-90 Location of Controls Parts List No.Part CodePart NameDescriptionQty 1134491466.5MM JACKYKB21-5102 (W/SW)5 22150756JACK NUT 25 2SD000099PUSH SWITCHESB646196 SD000082PUSH BUTTON6 3SD000091POTENTIOMETERRK09L1140 10KB11 40452178VR WASHER M911 17048630VR ACCESSORY NUT M911 SD000083KNOB S11 4SD

16、000045LED(RED)3FAI5 5SD000090POTENTIOMETERRK0971410 10KBX41 17048651VR ACCESSORY WASHER M71 H5039521R0VR ACCESSORY NUT M71 SD000083KNOB S1 6134491696.5MM JACKYKB21-50781 22150756JACK NUT 21 701901001XLR CONNECTERNCJ9FI-H1 8SD000105SLIDE SWITCHSSSF0215001 901454723PUSH SWITCHESB646201 SD000082PUSH BU

17、TTON1 1003782367SEESAW SWITCHJW-L11RKK1 03782323SW HOLDERAT-218K1 11SD001008CHASSIS1 1200122123XLR CONNECTERYKF52-5003N2 1313449643JACK (PIN JACK 2P) WHT/REDYKC21-30911 14134491456.5MM JACKYKB21-50101 22150756JACK NUT 21 15134492526.5MM JACKYKB21-5006 (STEREO W/SW)2 22150756JACK NUT 22 6 Jul. 2007AC

18、-90 Exploded View (Cabinet) fig.bunkai-cabinet.eps Speaker Jack Connection Diagram (Front View) Bottom View Rear View 7 Jul. 2007AC-90 Exploded View (Cabinet) Parts List Parts Screws No.Part CodePart NameDescriptionQty 1*CHASSIS ASSY1 2SD001004CABINET ASSY1 NOTE: CABINET ASSYNOTE includes the follow

19、ing parts. *ACOUSTIC FOAM A1 *ACOUSTIC FOAM B4 *ACOUSTIC FOAM C1 *ACOUSTIC FOAM D2 3 SD000079CATCH BLK(73)4 *MINI BELT0.2X90L BLACK2 4 *CR-based Rubber Sponge105X21X5.0mm2 5SD001001SPEAKER FULL RANGE (8”)W0804-435A (8INCH)2 6SD001002SPEAKER TWEETERT08504-435A2 7SD001003NET BOARD ASSY1 NOTE: NET BOAR

20、D ASSY includes the following part. *CLOTH1 8SD000719BADGELOGO1 9SD001015WIRINGW1 (BLACK)1 10SD001016WIRINGW2 (ORANGE)1 *LOCKING CABLE TIE2 11SD001005FOOTD25XT184 12SD000463HANDLE HOLDER2 13SD000462HANDLE PLATE1 14SD000461HANDLE RUBBER1 15SD001006STAND1 16SD001007STAND HOLDER2 1717055020STAND ADAPTO

21、R1 No.Part CodePart NameDescriptionQty a40010356SCREW M4X20BINDING BZC8 b40012978SCREW M3x15PAN MACHINE W/SW+PW BZC8 c40010545SCREW M4X25TRUSS HEAD SPECIAL FE BZC8 d40011323SCREW 3X10BINDING TAPTITE P BZC2 e40347612WASHER M4PLAIN BZC4 f40010678SCREW 4X20TRUSS TAPPING A FE BZC7 gSD000737SCREW M5X20OV

22、AL MACHINE BZC4 h40126267SCREW M4X16PAN MACHINE W/SW+PW BZC4 8 Jul. 2007AC-90 Exploded View (Chassis) fig.bunkai-chassis.eps Cushion Chassis Attachment (Front Panel) Affix lined up with the chassis border lines. The direction differs depending on the AC cord specifications. PS1 Board Fuse Rating Ind

23、ication 100VJ/117VU/117VUC Specifications230VE/230VG/240VA Specifications Use Bel Fuse 5ST 5A 250V. Delete the high-voltage fuse rating as shown below. Use Bel Fuse 5ST 3.15A 250V. Delete the low-voltage fuse rating as shown below. 9 Jul. 2007AC-90 Exploded View (Chassis) Parts List Parts Screws Det

24、ach the PCB assemblies in the sequence shown below. 1. AC CORD 2. PS1 BOARD 3. AMP BOARD 4.STAY 5.TRANSFORMER 6.XLR BOARD 7.MAIN BOARD 8.JACK BOARD 9.PANEL BOARD No.Part CodePart NameDescriptionQty 1SD001009TRANSFORMERPT-BG435 100V/117V1 SD001010TRANSFORMERPT-BG435 230V/240V1 2SD000177AC CORD PSESP-

25、18A WITH TERMINAL 100V 1 SD000912 AC CORD ASSYSP-20 117V(2P) 1 SD000913AC CORD ASSYSP-026A 230V(2P)1 SD000914AC CORD ASSYSP-61 230VE(2P)1 SD000915AC CORD ASSYSP-501 240V(2P)1 3SD000989MAIN BOARD ASSY1 NOTE: MAIN BOARD ASSYNOTE includes the following parts. 4 *MAIN BOARD1 5 *PANEL BOARD1 6 *JACK BOAR

26、D1 7 *XLR BOARD1 8SD000990AMP BOARD ASSY1 NOTE: AMP BOARD ASSY includes the following parts. 9 *AMP BOARD1 10 *PS1 BOARD1 11SD001008CHASSIS1 1222150756JACK NUT9 13SD000083KNOB S12 14SD000082PUSH BUTTON7 1522360705CORD HOOK2 1612369410RTAC CORD HOLDER1702B2 1703782367SEESAW SWITCHJW-L11RKK1 180378232

27、3SW HOLDERAT-218K1 19SD000182STAY3 20SD001011TRANS SHEET1 21SD001012CUSHION CHASSIS L1 22SD001013CUSHION CHASSIS S2 23SD000853CUSHION 3x32 HI2 24SD000153CABLE CLAMP412-PGYL-31 No.Part CodePart NameDescriptionQty a22150518STANDOFFHEX.BOSS 5.5X15 M34 b40011490SCREW M3X6PAN MACHINE W/SW BZC4 c40012867S

28、CREW M3X8PAN MACHINE W/SW+PW ZC25 d40013012SCREW M4X10PAN W SEMS FE BZC4 e40010301SCREW M3X20BINDING MACHINE BZC2 fSD000103SCREW M4X25PAN PACHINE W/SW BZC2 g40011767FLANGE HEX NUT M4FE ZC1 h40011756FLANGE HEX NUT M3ZC2 i40011889EXTERNAL TOOTH WASHER M4ZC1 j40011878M3 EXTERNAL TOOTH WASHERFE CM1 k400

29、11101SCREW 3X8BINDING TAPTITE B BZC7 l17048630VR ACCESSORY NUT M911 m40452178VR WASHER M911 nH5039521R0VR ACCESSORY NUT M71 o17048651VR ACCESSORY WASHER M7M7X12X0.5 NO.4671 10 Jul. 2007AC-90 Parts List fig.part1e SAFETY PRECAUTIONS: The parts marked have safety-related characteristics. Use only list

30、ed parts for replacement. NOTE: The parts marked # are new. (initial parts) Due to one or more of the following reasons, parts with parts code * cannot be supplied as service parts. Part supplied only as a component in a complete assembly Copyright does not permit the part to be supplied Part is sol

31、d commercially The description QTY means a necessary number of the parts per one product. CASING SD000719BADGELOGONET BOARD1 # SD001005FOOTD25XT184 # SD001004CABINET ASSY1 NOTE: CABINET ASSY includes the following parts. *ACOUSTIC FOAM A1 *ACOUSTIC FOAM B4 *ACOUSTIC FOAM C1 *ACOUSTIC FOAM D2 SD00007

32、9CATCH BLK(73)4 *MINI BELT0.2X90L BLACK2 *CR-based Rubber Sponge105X21X5.0mm2 SD000463HANDLE HOLDER2 SD000462HANDLE PLATE1 SD000461HANDLE RUBBER1 #SD001003NET BOARD ASSY1 NOTE: NET BOARD ASSY includes the following parts. *CLOTH1 # SD001006STAND1 17055020STAND ADAPTOR1 #SD001007STAND HOLDER2 CHASSIS

33、 # SD001008CHASSIS 22360705CORD HOOK2 SD000182STAY3 KNOB, BUTTON SD000083KNOB S12 SD000082PUSH BUTTON7 SWITCH SD000105SLIDE SWITCHSSSF0215001 03782367SEESAW SWITCHJW-L11RKK1 01454723PUSH SWITCHESB646201 SD000099PUSH SWITCHESB646196 JACK, EXT TERMINAL 00122123XLR CONNECTERYKF52-5003NJK6, 92 13449643J

34、ACK (PIN JACK 2P) WHT/ RED YKC21-3091JK51 134491696.5MM JACKYKB21-5078JK21 134491466.5MM JACKYKB21-5012 (W/SW)JK1, 4, 7, 12, 4005 134491456.5MM JACKYKB21-5010JK131 134492526.5MM JACKYKB21-5006 (STEREO W/SW)JK11, 4012 01901001XLR CONNECTERNCJ9FI-HJK31 SPEAKER, BUZZER # SD001001SPEAKER FULL RANGEW0804

35、-435A (8INCH) 2 # SD001002SPEAKER TWEETERT08504-435A 2 11 Jul. 2007AC-90 PWB ASSY # SD000990AMP BOARD ASSY 1 NOTE: AMP BOARD ASSY includes the following part. *PS1 BOARDNOTE: excluding the fuse.1 # SD000989MAIN BOARD ASSY 1 NOTE: MAIN BOARD ASSY includes the following parts. *MAIN BOARD1 *PANEL BOAR

36、D1 *JACK BOARD1 *XLR BOARD1 DIODE SD000045LED (RED) 3FAI5 FUSE, FUSE HOLDER 03670512FUSE5ST 5-R 5A/250V1 03673801FUSE5ST 3.15 3.15A/250Vfor 230V/240V1 POTENTIOMETER SD000091POTENTIOMETERRK09L1140 10kBVR2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1211 SD000090POTENTIOMETERRK0971410 10kBX4VR11 WIRING, CABLE # SD0

37、01014WIRINGW3 (SPEAKER)SPEAKER1 # SD001016WIRINGW2 (ORANGE)Rch FULL RANGE SPEAKER-TWEETER1 # SD001015WIRINGW1(BLACK)Lch FULL RANGE SPEAKER-TWEETER1 TRANSFORMER # SD001010TRANSFORMERPT-BG435 230V/240Vfor 230V/240V1 # SD001009TRANSFORMERPT-BG435 100V/117Vfor 100V/117V1 AC CORD ASSY (Installed) SD00091

38、4AC CORD ASSYSP-61 230VE(2P)for 230VE1 SD000915AC CORD ASSYSP-501 240V(2P)for 240VA1 SD000912AC CORD ASSYSP-20 117V(2P)for 117VU1 SD000177AC CORD PSESP-18A WITH TERMINAL 100Vfor 100VJ1 SD000913AC CORD ASSYSP-026A 230V(2P)for 230VEU1 SCREWS 40011756FLANGE HEX NUT M3ZCAC CORD2 40010678SCREW 4X20TRUSS

39、TAPPING A FE BZCFOOT, STAND 7 40010545SCREW M4X25TRUSS HEAD SPECIAL FE BZCCHASSIS8 40347612WASHER M4PLAIN BZCFOOT4 40013012SCREW M4X10PAN W SEMS FE BZCTRANSFORMER4 SD000103SCREW M4X25PAN PACHINE W/SW BZCAC CORD HOOK2 40012867SCREW M3X8PAN MACHINE W/SW+PW ZC PCB, STAY, CABLE CLAMP25 40012978SCREW M3X

40、15PAN MACHINE W/SW+PW BZC TWEETER8 40126267SCREW M4X16PAN MACHINE W/SW+PW BZC STAND HOLDER4 40011490SCREW M3X6PAN MACHINE W/SW BZCCHASSIS4 SD000737SCREW M5X20OVALHEAD MACHINE BZCHANDLE4 17048651VR ACCESSORY WASHER M7M7X12X0.5 NO.476VR11 22150518STANDOFFHEX.BOSS 5.5X15 M3 4 40011889EXTERNAL TOOTH WAS

41、HER M4 FECMW7 GND1 40011878M3 EXTERNAL TOOTH WASHER FECMW10 GND1 40011767FLANGE HEX NUT M4FE ZCW7 GND1 40011323SCREW 3X10BINDING TAPTITE P BZCRoland BADGE2 40011101SCREW 3X8BINDING TAPTITE B BZCJK5, JK6, JK9, JK37 40010301SCREW M3X20BINDING MACHINE BZCAC CORD2 40010356SCREW 4X20BINDING BZCFULLRANGE

42、SPEAKER8 22150756JACK NUT 2 9 H5039521R0VR ACCESSORY NUT M7 VR11 17048630VR ACCESSORY NUT M9 VR2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1211 40452178VR WASHER M9 VR2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1211 12 Jul. 2007AC-90 PACKING # SD001000CUSHION PAD(DH NO.:604-AC-90) 1 SD000518BOTTOM PAD 8 # SD000998PACKING C

43、ASE 1 MISCELLANEOUS # SD001013CUSHIONCHASSIS SCHASSIS2 # SD001012CUSHIONCHASSIS LCHASSIS1 03782323SW HOLDERAT-218K 1 SD000153CABLE CLAMP412-PGYL-3STAY1 SD000853CUSHION3X32 HICHASSIS2 12369410RTAC CORD HOLDER1702B 2 SD000079CATCH BLACK (73) 4 # SD001011TRANS SHEET TRANSFORMER1 ACCESSORIES (Standard)

44、# SD000994OWNERS MANUALE/G/F/I/S/P/D 1 # SD000999CARRYING BAG 1 13 Jul. 2007AC-90 14 Jul. 2007AC-90 Verifying the Version Number The TIP: MUTE, RING: ANTI-FEEDBACK foot switch is indicated as Foot SW 1. The TIP: CHORUS, RING: REVERB/DELAY foot switch is indicated as Foot SW 2. fig.footSW.eps 1.Foot

45、Switch Settings and Connections Connect two FS-5U foot switches to Foot SW 1 using a PCS-31 foot- switch cable. Set the POLARITY switch on the FS-5U foot switches to the setting opposite that of the jack. Connect the standard plugs to the respective FS-5U foot switches. *The PCS-31 foot-switch conne