ALESIS RA500 (G6) Service Manual

P/N: 8-31-0099-A

ATTENTION!
THIS DOCUMENT CONTAINS SENSITIVE PROPRIETARY INFORMATION. ALL RECIPIENTS MUST HAVE A CURRENT NONDISCLOSURE AGREEMENT ON FILE WITH ALESIS DISTRIBUTION, LLC. DO NOT DISTRIBUTE THIS DOCUMENT IN ELECTRONIC FORM
The information in this document contains privileged and confidential information. It is intended only for the use of those authorized by Alesis. If you are not the authorized, intended recipient, you are hereby notified that any review, dissemination, distribution or duplication of this document is strictly prohibited. If you are not authorized, please contact Alesis and destroy all copies of this document. You may contact Alesis at support@Alesis.com. Copyright 2002 Alesis Distribution, LLC

Preface

This document is intended to assist the service technician in the operation, maintenance and repair of the Alesis device. Together with the User Reference Manual, this document provides a complete description of the functionality and serviceability of the Device. Any comments or suggestions you may have pertaining to the document are welcome and encouraged. READ THIS!
In addition to any purchase price that Alesis may charge as consideration for Alesis selling or otherwise transferring this service manual (Manual) to you, if you are not a service and repair facility (Service Center) authorized by Alesis in writing to be an authorized Service Center, Alesis sells or transfers the Manual to you on the following terms and conditions: Only Service Centers authorized by Alesis in writing are authorized to perform service and repairs covered by an Alesis warranty (if any), and transfer of the Manual to you does not authorize you to be an authorized Service Center. Therefore, if you perform, or if the Manual is used to perform, any service or repairs on any Alesis product or part thereof, any and all warranties of Alesis as to that product and any service contract with Alesis for that product shall be voided and shall no longer apply for such product, even if your services or repairs were done in accordance with the Manual. All service or repairs done by you or with reference to the Manual shall be solely your responsibility, and Alesis shall have no liability for any such repairs or service work. All such service or repairs are performed at the sole risk of the person performing the service or repairs. You agree that all such work will be performed in a competent, professional and safe manner at all times and to indemnify and fully hold Alesis and its successors and assigns harmless in the event of any failure to so perform. Your purchase of the Manual shall be for your own ultimate use and shall not be for purposes of resale or other transfer. As the owner of the copyright to the Manual, Alesis does not give you the right to copy the Manual, and you agree not to copy the Manual without the written authorization of Alesis. Alesis has no obligation to provide to you any correction of, or supplement to, the Manual, or any new or superseding version thereof. Alesis shall have the right to refuse to sell or otherwise transfer repair parts or materials to you in its sole discretion. You shall not use, sell or otherwise transfer spare or replacement parts supplied by Alesis to you (i) to repair or be used in products manufactured for or by third parties or (ii) to any third parties for any purpose. You shall not make any warranties or guarantees with respect to the products of Alesis or the use thereof on behalf of Alesis or in your own name. The foregoing describes the entire understanding related to sale or transfer of the Manual to you, and no other terms shall apply unless in a writing signed by an authorized representative of Alesis. All Trademarks are property of their respective companies.

RA500 (G6) SCHEMATIC AND PCB FILES

RA500 (G6) BOM

? ? ? PRODUCT NO. 31 PART NO. CB0118101002 JP1080750000 JP1081000000 JP1081250000 JP1081500000 RR0101000210 RR0104700210 RR0110000210 RR0120000210 RR0156000210 RR0168000210 RR0191000210 RR0110010210 RR0115010210 RR0156010210 RR0115020210 RR0120020210 RR0147020210 RR0110030210 RR0122000410 RR0468000210 RR0418010210 RR0300470410 RR0301000620 RR0302000620 RR0700022842 RR0810010000 RR0820020001 CC1100005110 CC1220005110 CC1120105520 HOME AMP MATERIAL PCB JUMPER JUMPER JUMPER JUMPER C/R C/R C/R C/R C/R C/R C/R C/R C/R C/R C/R C/R C/R C/R C/R M/R M/R MO/R MO/R MO/R CEMENT RES THERMAL RES THERMAL RES C/C C/C C/C PE-QT-016-A MODEL RA500(2*250W)AMP BOARD PARTS(R CHANNEL) SPECIFICATION RA500AR,V1.2,178.5*108.5mm,20Z?? F0.8*7.5mm F0.8*10mm F0.8*12.5mm F0.8*20mm 1/8W,10 ohm,+/-5% 1/8W,47 ohm,+/-5% 1/8W,100 ohm,+/-5% 1/8W,200 ohm,+/-5% 1/8W,560 ohm,+/-5% 1/8W,680 ohm,+/-5% 1/8W,910 ohm,+/-5% 1/8W,1K ohm,+/-5% 1/8W,1.5K ohm,+/-5% 1/8W,5.6K ohm,+/-5% 1/8W,15K ohm,+/-5% 1/8W,20K ohm,+/-5% 1/8W,47K ohm,+/-5% 1/8W,100K ohm,+/-5% 1/2W,220 ohm,+/-5% 1/8W,680 ohm,+/-1% 1/8W,1.8K ohm,+/-1% 1/2W,4.7 ohm,+/-5% 2W,10 ohm,+/-5% 2W,20 ohm,+/-5% 5W,0.22 ohm,+/-5%,??,13*9*25mm 1K ohm,+/-5%,????? 20K ohm,+/-5%,?????,?????? 101/50V,+/-5%,NPO 221/50V,+/-5%,NPO 122/50V,+/-10%,Y5P PAGE QTY 1
CC2100309010 CC2470109010 EC1100505120 EC1100609120 IC0710553200 DI0100414800 DI0100400400 TR0103018150 TR0204010150 TR0116032060 TR0215010240 TR0101000130 TR0103047930 TR0204018370 TR0103052000 TR0204019430 LN3151000100 VR5033100200 RA1032010000 JA0800000000 JA0703200000 JA0102110000 SW0202204000 AL5803500410 AL5203500620
M/C M/C E/C E/C IC DIODE TR TR TR TR TR TR TR TR TR TR NARROW CHOLE TRIM VR RCA JACK 6.35 SOCKET XLR JACK 2P SOCKET SWITCH 4PIN PLUG WIRE 6PIN PLUG WIRE
104/100V,+/-5% 472/100V,+/-5% 10UF/50V,+/-20%,85?,F5*12mm 100UF/100V,+/-20%,85?,F10*20mm NE5532P,DIP8 1N4148,75V,200mA,1/2W 1N4004,400V,1A 2SC1815GR,150mA,50V,400mW,NPN 2SA1015GR,150mA,50V,400mW,PNP C3206Y,KEC A1024Y,KEC MPSA13,500mA,30V,625mV,NPN,DARLINGTON 2SC4793,NPN 2SA1837,PNP 2SC5200,15A,230V,150W,NPN 2SA1943,15A,230V,150W,PNP ERECT,1.2UH,??=1.5mm,????=15mm 331B,F-637V-TR AV-8.4-3,3PIN ,RED,GILD CK3-6.35-02B,GILD,WITH PLASTIC NUT 900C ANGLE,94M-007P1 2532-02-180 DEGREE,P=2.54mm SK-22F03-G04,L=4mm(COMAX) 18#,4P,P=4.0,L=350mm, WITH 8639 PLUG 22#,6P,P=2.54,L=350mm

? PRODUCT ? NO. ? PART NO. CB1017901000 JP1081500000 RR0191000210 RR0147000210 RR0115010210 RR0122010210 RR0168010210 RR0110020210 RR0133020210 RR0147020210 RR0168020210 RR0110030210 RR0122030210 CC1100105520 EC2330305120 EC2100505120 EC1100806130 IC1120140300 DI0100414800 LD0245580100 LD0135580100 LD0465580100 TR0103018150 AL5302000520 JA0102110000 HOME AMP MATERIAL PCB JUMPER C/R C/R C/R C/R C/R C/R C/R C/R C/R C/R C/R C/C MINI E/C MINI E/C MINI E/C IC DIODE LED LED LED TR 5P PLUG WIRE 2P SOCKET MODEL RA500(2*250W) AMP POWER INDICATORPCB PARTS SPECIFICATION RA500LED,V1.1 (125*40mm),2OZ?? F0.8*5mm 1/8W,910 ohm,+/-5% 1/8W,470 ohm,+/-5% 1/8W,1.5K ohm,+/-5% 1/8W,2.2K ohm,+/-5% 1/8W,6.8K ohm,+/-5% 1/8W,10K ohm,+/-5% 1/8W,33K ohm,+/-5% 1/8W,47K ohm,+/-5% 1/8W,68K ohm,+/-5% 1/8W,100K ohm,+/-5% 1/8W,220K ohm,+/-5% 102/50V,+/-10% 0.33UF/50V,+/-20%,85?,F5*7mm 10UF/50V,+/-20%,85?,F5*7mm 47UF/16V,+/-20%,85?,F5*7mm LB1403N,SIP9 1N4148,75V,200mA,1/2W GREEN,LX7030 5*1mm, 5*2.8mm RED,LX7030 , 5*1mm, 5*2.8mm YELLOW, LX7030 5*1mm,5*2.8mm 2SC1815GR,150mA,50V,400mW,NPN 5PIN,P=2.54mm,24#,UL1007,L=200mm 2532-02-180? P=2.54mm PAGE QTY 1
? PRODUCT ? NO. ? PART NO. SM1018100000 SM1118100000 SM1218100000 SM1218100001 SM0118100000 SM0118100001 FU2100125001 FU2050125000 FS2000000002 TT2221423300 PT2102202800 WL2150120400 WL4080030440 WL4080070440 WL4120050570 WL4280050560 WL4280100570 WL4220050500 WL4180100560 WL4280100560 AL5801800410 HP1233110000 SW1100000000 JA0403000002 PT1040015000 PT1200040000 PT1250040000 PT1400040000 PB0600000000 PB0600000001 DI0300150200 HOME AMP MATERIAL RA500LED PARTS RA500PWR PARTS RA500DRV-L PARTS RA500DRV-R PARTS RA500AL PARTS RA500AR PARTS FUSE FUSE HOLDER EI POWER TRANSFORMER MICA FILM GROUND CABLE WIRE WIRE UL1617 CABLE UL1618 CABLE UL1619 CABLE UL1617? UL1618? UL1619? 4PIN WIRE BINDING POST VOLTAGE SELECT SWITCH POWER SOCKET THERMAL SLEEVE THERMAL SLEEVE THERMAL SLEEVE THERMAL SLEEVE BUSHING BUSHING BRIDGE RECTIFIER MODEL RA500(2*250W )PROFESSIONAL AMPLIFIER SPECIFICATION 2*250W ????????PCB?? 2*250W ????????? 2*250W ???????(L CHANNEL) 2*250W ???????(R CHANNEL) 2*250W ?????(L CHANNEL) 2*250W ?????(R CHANNEL) 5*20mm,5TT10A125V(5TT)FOR 115V,GSL5A250V(GST)FOR 230V FH-B02 500W,AC115/230V INPUT,AC48.8V*2 OUTPUT 22*28mm L=150mm,18#???,???250?? 18#,UL1015,L=80mm,??,???250 18#,UL1015,L=80mm,??,???250 L=120mm,20#??,???250???? L=280mm,20#??,???250?? L=280mm,20#??,???250?? L=220mm,20#??,????10mm,?? L=180mm,20#??,???250?? L=280mm,20#??,???250?? L=180mm,18#,UL1015,PITCH=4mm A215BK ,GILD HF-308 3PIN,3516-4 F4*15mm, BLACK F20*40mm, BLACK F25*40mm, BLACK F40*40mm,BLK F2.4*80mm F2.4*100mm 15A/200V,??,??? MP1502 PAGE QTY 8 1
? PORDUCT ? NO. ? PART NO. MT0117925800 MT0718125800 MT1018125800 MT1018125801 PL1617911700 PM2000000000 PM2005017001 PM1008008002 PL2618040300 PL2718040100 PL0118140300 PL1717910100 PL1017911700 PL1117920501 HS0818130100 HS0818130101 PC5403071300 PC5403071000 SC3005206110 SC3006206110 SC3008206110 SC3008206120 SC3010206110 SC3014206110 SC4006206110 SC4010206110 SC3006203110 SC3006208110 SC4012208150 SC4014208110 SC4006212130 HOME AMP MATERIAL TOP COVER BOTTOM COVER LEFT SIDE PANEL RIGHT SIDE PANEL VR SWITCH PLASTIC FOOT PLASTIC FOOT FOAT LENS LED BRACKET PLATE SWITCH BUTTON ?? LED COVER LEFT HEATSINK RIGHT HEATSINK COOPER COOPER SCREW SCREW SCREW SCREW SCREW SCREW SCREW SCREW SCREW SCREW SCREW SCREW SCREW PE-QT-016-A MODEL RA500(2*250W)???? SPECIFICATION ?1.50MM???????? ?1.50MM???????? ?1.50MM???????? ?1.50MM???????? ABS SILIVER BLACK PLASTIC,SR-80? F17*5*4mm 8*8*3mm,???? PC??? ABS BLACK PA765+ ??? ABS ?? ABS ??? PC ???? ?????????? ?????????? ??M4*4?+M3*8??? ??M3*10 M3*6???? M3*5???? M3*6???? M3*8???? M3*8???? M3*12???? M3*18???? M4*6???? M4*10???? M3*6???? M4*14???? M4*12???? M4*6????? PAGE QTY 4

RA150/RA300/RA500

Product Description

Specifications

The Alesis RA100 power amplifier has long been a favorite choice of musicians, hobbyists, and professionals alike. Now Alesis updates the RA amplifier line with three new models featuring beefed-up power ratings, rugged construction, and stylish industrial design. With advanced convection cooling, there are no fans to create noise in the studio.
Silent, fanless design Rugged, stylish construction 1/4 TRS and RCA inputs Binding post (banana) outputs LED output level metering andXLR inputs (RA300 and RA500) RAohms: 75 watts RMS per channel 8 ohms: 45 watts RMS per channel 8 ohms: 150 watts RMS, bridged RAohms: 150 watts RMS per channel 8 ohms: 90 watts RMS per channel 8 ohms: 300 watts RMS, bridged RAohms: 250 watts RMS per channel 8 ohms: 150 watts RMS per channel 8 ohms: 500 watts RMS, bridged

Positioning

The RA series provides the best choice of powerful, affordable, stylish, and noiseless power amplifiers for powering studio monitors.

Applications

The new RA series of amplifiers are perfect for powering monitors in project and commercial recording studios, mastering facilities, TV/video/film post production houses, broadcast control rooms, and guitar/bass rigs.

Dimensions & Weights

RA150: 18.9x 3.9 x 10.25 (2 RU) (480mm x 99mm x 260mm) 15 lbs. (6.8 kg) RA300: 18.9 x 3.9x 10.63 (2 RU) (480mm x 99mm x 270mm) 19 lbs. (8.6 kg) RA500: 18.9 x 5.63 x 10.71 (3 RU) (480mm x 143mm x 272mm) 28.5 lbs. (13.0 kg)