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U.S.A.
Yorkville Sound Inc. 4625 Witmer Industrial Estate
Niagara Falls, New York 14305 USA
Voice: (716) 297-2920 Fax: (716) 297-3689
WORLD HEADQUARTERS
WEB ACCESS: http://www.yorkville.com
CANADA
Yorkville Sound 550 Granite Court Pickering, Ontario
L1W-3Y8 CANADA
Voice: (905) 837-8481 Fax: (905) 837-8746
Quality and Innovation Since 1963 Printed in Canada
SERVICE MANUAL
K4MODEL TYPE: YS1045
The exclamation point within an equilatereal triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
Le point d’exclamation à l’intérieur d’un triangle équilatéral est prévu pour alerter l’utilisateur de la présence d’instructions importantes dans la littérature accompag-nant l’appareil en ce qui concerne l’opération et la maintenance de cet appareil.
This lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to persons.
Ce symbole d’éclair avec tête de flèche dans un triangle équilatéral est prévu pour alerter l’utilisateur de la présence d’un « voltage dangereux » non-isolé à proximité de l’enceinte du produit qui pourrait être d’ampleur suffisante pour présenter un risque de choque électrique.
IMPORTANT SAFETY INSTRUCTIONS
safety-4v7 • May 7/2008
CAUTION: TO REDUCE THE RISK OF ELECTRICSHOCK, DO NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIEDSERVICE PERSONNEL.
FOLLOW ALL INSTRUCTIONS SUIVEZ TOUTES LES INSTRUCTIONSInstructions pertaining to a risk of fire,
electric shock, or injury to a person
Read Instructions: The Owner’s Manual should be read and understood before operation of your unit. Please, save these instructions for future reference and heed all warnings.
Clean only with dry cloth.
Packaging: Keep the box and packaging materials, in case the unit needs to be returned for service.
Warning: To reduce the risk or fire or electric shock, do not expose this apparatus to rain or moisture. Do not use this apparatus near water!
Warning: When using electric products, basic precautions should always be followed, including the following:
Power SourcesYour unit should be connected to a power source only of the voltage specified in the owners manual or as marked on the unit. This unit has a polarized plug. Do not use with an extension cord or receptacle unless the plug can be fully inserted. Precau-tions should be taken so that the grounding scheme on the unit is not defeated. An apparatus with CLASS I construction shall be connected to a Mains socket outlet with a protective earthing ground. Where the MAINS plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable.
HazardsDo not place this product on an unstable cart, stand, tripod, bracket or table. The product may fall, causing serious personal injury and serious damage to the product. Use only with cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with the product. Follow the manufacturer’s instructions when installing the product and use mounting accessories recommended by the manufacturer. Only use attachments/accessories specified by the manufacturer
Note: Prolonged use of headphones at a high volume may cause health damage on your ears.
The apparatus should not be exposed to dripping or splashing water; no objects filled with liquids should be placed on the apparatus.
Terminals marked with the “lightning bolt” are hazardous live; the external wiring connected to these terminals require installation by an instructed person or the use of ready made leads or cords.
Ensure that proper ventilation is provided around the appliance. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
No naked flame sources, such as lighted candles, should be placed on the apparatus.
Power CordDo not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. The AC supply cord should be routed so that it is unlikely that it will be damaged. Protect the power cord from being walked on or pinched particularly at plugs. If the AC supply cord is damaged DO NOT OPERATE THE UNIT. To completely disconnect this apparatus from the AC Mains, disconnect the power supply cord plug from the AC receptacle. The mains plug of the power supply cord shall remain readily operable.
Unplug this apparatus during lightning storms or when unused for long periods of time.
ServiceThe unit should be serviced only by qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
AVIS: AFIN DE REDUIRE LES RISQUE DE CHOCELECTRIQUE, N’ENLEVEZ PAS LE COUVERT (OU LEPANNEAU ARRIERE) NE CONTIENT AUCUNE PIECE
REPARABLE PAR L’UTILISATEUR.
CONSULTEZ UN TECHNICIEN QUALIFIEPOUR L’ENTRETIENT
Instructions relatives au risque de feu,choc électrique, ou blessures aux personnes
Veuillez Lire le Manuel: Il contient des informations qui devraient êtres comprises avant l’opération de votre appareil. Conservez. Gardez S.V.P. ces instructions pour consultations ultérieures et observez tous les avertissements.
Nettoyez seulement avec le tissu sec.
Emballage: Conservez la boite au cas ou l’appareil devait être retourner pour réparation.
Avertissement: Pour réduire le risque de feu ou la décharge électrique, n'exposez pas cet appareil à la pluie ou à l'humidité. N’utilisez pas cet appareil près de l’eau!
Attention: Lors de l’utilisation de produits électrique, assurez-vous d’adhérer à des précautions de bases incluant celle qui suivent:
AlimentationL’appareil ne doit être branché qu’à une source d’alimentation correspondant au voltage spécifié dans le manuel ou tel qu’indiqué sur l’appareil. Cet appareil est équipé d’une prise d’alimentation polarisée. Ne pas utiliser cet appareil avec un cordon de raccordement à moins qu’il soit possible d’insérer complètement les trois lames. Des précautions doivent êtres prises afin d’eviter que le système de mise à la terre de l’appareil ne soit désengagé. Un appareil construit selon les normes de CLASS I devrait être raccordé à une prise murale d’alimentation avec connexion intacte de mise à la masse. Lorsqu’une prise de branchement ou un coupleur d'appareils est utilisée comme dispositif de débranchement, ce dispositif de débranchement devra demeurer pleinement fonctionnel avec raccordement à la masse.
RisqueNe pas placer cet appareil sur un chariot, un support, un trépied ou une table instables. L’appareil pourrait tomber et blesser quelqu’un ou subir des dommages importants. Utiliser seulement un chariot, un support, un trépied ou une table recommandés par le fabricant ou vendus avec le produit. Suivre les instructions du fabricant pour installer l’appareil et utiliser les accessoires recommandés par le fabricant. Utilisez seulement les attachements/accessoires indiqués par le fabricant
Note: L'utilisation prolongée des écouteurs à un volume élevé peut avoir des conséquences néfastes sur la santé sur vos oreilles. .
Il convient de ne pas placer sur l’appareil de sources de flammes nues, telles que des bougies allumées.
L’appeil ne doit pas être exposé à des égouttements d’eau ou des éclaboussures et qu’aucun objet rempli de liquide tel que des vases ne doit être placé sur l’appareil.
Assurez que lappareil est fourni de la propre ventilation. Ne procédez pas à l’installation près de source de chaleur tels que radiateurs, registre de chaleur, fours ou autres appareils (incluant les amplificateurs) qui produisent de la chaleur.
Les dispositifs marqués d’une symbole “d’éclair” sont des parties dangereuses au toucher et que les câblages extérieurs connectés à ces dispositifs de connection extérieure doivent être effectivés par un opérateur formé ou en utilisant des cordons déjà préparés.
Cordon d’AlimentationNe pas enlever le dispositif de sécurité sur la prise polarisée ou la prise avec tige de mise à la masse du cordon d’alimentation. Une prise polarisée dispose de deux lames dont une plus large que l’autre. Une prise avec tige de mise à la masse dispose de deux lames en plus d’une troisième tige qui connecte à la masse. La lame plus large ou la tige de mise à la masse est prévu pour votre sécurité. La prise murale est désuète si elle n’est pas conçue pour accepter ce type de prise avec dispositif de sécurité. Dans ce cas, contactez un électricien pour faire remplacer la prise murale. Évitez d’endommager le cordon d’alimentation. Protégez le cordon d’alimentation. Assurez-vous qu’on ne marche pas dessus et qu’on ne le pince pas en particulier aux prises. N’UTILISEZ PAS L’APPAREIL si le cordon d’alimentation est endommagé. Pour débrancher complètement cet appareil de l’alimentation CA principale, déconnectez le cordon d’alimentation de la prise d’alimentation murale. Le cordon d’alimentation du bloc d’alimentation de l’appareil doit demeurer pleinement fonctionnel.
Débranchez cet appareil durant les orages ou si inutilisé pendant de longues périodes.
ServiceConsultez un technicien qualifié pour l’entretien de votre appareil. L'entretien est nécessaire quand l'appareil a été endommagé de quelque façon que se soit. Par exemple si le cordon d’alimentation ou la prise du cordon sont endommagés, si il y a eu du liquide qui a été renversé à l’intérieur ou des objets sont tombés dans l'appareil, si l'appareil a été exposé à la pluie ou à l'humidité, si il ne fonctionne pas normalement, ou a été échappé.
S2125A
K4 Parts List 6/28/2010YS # Description Qty. YS # Description Qty. YS # Description Qty. YS # Description Qty.
6405 RED 3MM LED 2V0 20MA BRT 5 5260 _22U 50V 20%CAP T&R RAD .2EL 2 4815 1/4W 12R 5% T&R RES 4 8761 6-32 X 1/2 PAN PHIL MS ZINC CLEAR 46408 GRN 3MM LED 1V9 5MA FROSTED 1 5282 _10U 16V 20%CAP T&R 5X7MM .2NP 4 4612 1/2W 18R 5% T&R RES 2 8806 6-32 X 1/2 PAN PH TAPTITE JS500 66554 BLUE 3MM LED 3V9 20MA 1 5629 _10U 160V 20%CAP BLK 10X13MM EL 9 4812 1/4W 18R 5% T&R RES 1 8878 #6 X 2" PAN QUAD TYPE A JS500 BLACK 46425 BAV21 200V 0A25 DIODE T&R 6 5631 _22U 50V 20%CAP T&R 6X7MM .2EL 10 4618 1/2W 22R 5% T&R RES 3 8722 #8 X 1" PAN QUAD TYPE AB B/O 206434 6A2 200V 6A0 DIODE 8 5945 _10U 63V 20%CAP T&R RAD .2EL 6 4817 1/4W 47R 5% T&R RES 4 8849 8-32 X 1 PAN PHIL MS TIN PLATED 36438 1N4007 1000V 1A0 DIODE T&R 9 5265 _68U 25V 20%CAP T&R RAD .2EL 2 4811 1/4W 68R 5% T&R RES 1 8734 #10 X 1/2 PAN PH TYP A BRITE NICKEL 46733 BAT85 30V 0A2 DIODE SCHT T&R 4 5610 220U 160V 20%CAP BLK 16X36MM EL 3 4912 1/4W 75R 5% T&R RES 1 8756 #10 X 3/4 PAN PH TYPE A BLACK OXIDE 306825 1N4148 75V 0A45 DIODE T&R 46 5621 470U 63V 20%CAP BLK 12X25MM EL 2 4852 1/4W 100R 5% T&R RES 8 8781 #10 X 7/8 FLAT QUAD TYPE A JS500BLK 46439 1N5225B 3V0 0W5 ZENER 5% T&R 2 5879 100U 16V 20%CAP T&R 8X7MM .2EL 4 4659 1/2W 150R 5% T&R RES 6 8727 #10 X 1" PAN PH TYPE A JS500 BLACK 26461 1N5240BRL 10V0 0W5 ZENER 5% T&R 4 5616 3300U 50V 20%CAP BLK 18X35MM EL 4 4859 1/4W 150R 5% T&R RES 2 8786 10-32 X 1 1/4 PAN QD MS JS500 BLACK 46463 1N5251BRL 22V0 0W5 ZENER 5% T&R 1 4480 _10K 1B LIN 12MM HOR ST P27 1 4857 1/4W 220R 5% T&R RES 10 8733 5/16-18X2-1/2 GRD 5 HEX BOLT JS500 16822 1N4745A 16V0 1W0 ZENER 5% T&R 2 4479 _20K 05C R/A 12MM HOR ST P27 2 4770 1/4W 249R 1% T&R RES 4 8731 10-16 X 5/8 TYPE B HEX W/SLOT JS500 86871 MC7915CT TO220 N 15V0 REG V2 1 4478 _50K 1B LIN 12MM HOR ST DET P27 6 4867 1/4W 270R 5% T&R RES 10 8770 1/4-20 X 1 5/16 TRUSS PH MS JS500 56872 MC7815CT TO220 P 15V0 REG V1 2 4477 100K 1B LIN 12MM HOR ST P27 1 4986 1/4W 270R 5%MINI T&R RES 2 8866 #6 NYLON SPACER OD.250XID.140X.187 65101 BC550C TO92 NPN TRAN T&R TB 6 4032 _10K 1B LIN 9.5MM HORIZONTAL STP38 2 4821 1/4W 470R 5% T&R RES 4 8608 NYLON SPACER .200 OD .145 ID .110 L 45102 BC560C TO92 PNP TRAN T&R TB 11 4482 _20K 05C R/A 9.5MM HORIZONTAL STP38 1 4799 1/4W 562R 1% T&R RES 2 3751 SNAP IN 5/16 SPACER RICHCO 45103 MPSA06 TO92 NPN TRAN T&R TA 1 4529 470R TRIM POT 1 4873 1/4W 680R 5% T&R RES 4 7405 5" 8R 30WPGM SPEAKER SEALEDBACK 25104 MPSA56 TO92 PNP TRAN T&R TA 7 8504 CORNER, 2 LEGS NOTCED LIP NICKEL 4 4743 1/4W 681R 0.1% *** T&R RES 6 7388 12" 4R 170 PGM WOOF POLY/RUB SRND. 15106 MPSA63 TO92 PNP DARL T&R TA 3 8520 RUBBER BUMPER WITH WASHER -MEDIUM- 2 4822 1/4W 820R 5% T&R RES 2 8960 3/16" NEOPRENE FAN GASKET KIT 25107 2N5551 TO92 NPN TRAN T&R TA 2 8521 RUBBER BUMPER WITH WASHER VERYSMALL 6 4726 5.0W 1K 5% BLK RES 2 8981 RUBBER WASHER .312OD .150ID .093TH 45108 2N5401 TO92 PNP TRAN T&R TA 2 8547 PLASTIC FOOT BLACK, POLYETHYLENE 4 4823 1/4W 1K 5% T&R RES 23 8818 3/4 OD X 3/8 ID X .080 THICK WASHER 25113 MPSA42 TO92 NPN TRAN T&R TA 4 3489 CLIP 250X032 18-22AWG DISCO/INSL 12 4981 1/4W 1K 5%MINI T&R RES 5 8817 #10 FLAT WASHER FOR 3/16" BOLT 55119 2N5638 TO92 NCH JFET T&R TC 3 3490 CLIP 250X032 14-16AWG DISCO/INSL 11 6110 1/4W 1K0 1%MINI MF T&R RES 5 3393 5POS 2S NONSHORTING HORZ ROT SWT 15122 J109 TO92 NCH JFET T&R TC 1 3601 RING TERMINAL 16AWG WIRE & #8 SCREW 3 4889 1/4W 1K3 5% T&R RES 1 3425 DPDT PUSH SW PCMT BREAK B4 MAKE 36774 BD139 TO126 NPN TRAN TG 2 9925 TINNERMAN CLIP 1/8" STUD SIZE ROUND 3 4824 1/4W 1K5 5% T&R RES 3 3587 DPDT ROKR SW QUIK 250"AC/PWR ON-OFF 16787 BD237 TO126 NPN TRAN TG 1 3498 1/4" JCK PCB MT HORZ 5 4683 1.0W 1K8 5% T&R RES 1 3682 250 MALE PCB TAB REEL 226788 BD238 TO126 PNP TRAN TG 1 3918 1/4" JCK PCB MT HORZ SLIM W/SCREW 8 4825 1/4W 1K8 5% T&R RES 3 3732 9 PIN PC MOUNT TUBE SOCKET BE 26815 MJF6388 T221D NPN TRAN DARL TJ 1 3460 RCA DUAL PCB MT VERT GOLD .475" 1 4808 1/4W 2K 5% T&R RES 25 12AX7 12AX7 DUAL TRIODE PREAMP TUBE 26902 TIP142 TO247 NPN TRAN DARL TE 2 3922 XLR FEML PCB MT HORZ THIN SNAP-IN 1 6113 1/4W 2K 5%MINI T&R RES 4 CH1339 K2 / K4 POWER XFMR 16903 TIP147 TO247 PNP TRAN DARL TE 2 3923 XLR MALE PCB MT HORZ MTHOLE-V SNAP 2 4919 1/4W 2K05 1% T&R RES 16909 MJ21196 TO3 NPN TRAN TH 1 3451 EYELET SMALL 0.089 OD PLATED 28 4847 1/4W 2K2 5% T&R RES 106910 MJ21195 TO3 PNP TRAN TH 1 3414 INTERNATIONAL PC MOUNT FUSEHOLDER 6 4714 1/4W 2K21 1% T&R RES 46745 LM13600N IC XCONDUCTANCE AMP 2 2427 _5.0 AMP SLO-BLO .25X1.25 FUSE 3 4883 1/4W 2K49 1% T&R RES 26804 MC33079P IC QUAD OP AMP 11 4054 FAN 80MM X 80MM 31CFM 12VDC 150MA 2 4805 1/4W 2K87 1% T&R RES 16840 MC33078P IC DUAL OP AMP 8 8565 BAR HANDLE ALL METAL RECTANGULAR 2 4804 1/4W 3K 5% T&R RES 136882 TL072CP IC FET DUAL OP AMP 3 7286 30 WATT,4.75" HORN/COMP DRIVER 2 4826 1/4W 3K3 5% T&R RES 216884 NE5532N IC DUAL OP AMP 9 3501 B52200F006 COMP WASH #4 SMALL 2 5028 1/4W 3K74 1% T&R RES 26936 4007 IC COMPLIMENTARY PAIRS 2 3719 DUAL XSISTOR SPRING, ZINC CLEAR 2 4774 1/4W 4K12 1% T&R RES 56467 _10K 10% THERMISTOR TO-92 NTC 3 3977 QUAD XSISTOR SPRING, ZINC YELLOW 1 4910 1/4W 4K3 5% T&R RES 26880 4N35 OPTO-COUPLER 1 8609 VINYL CAP 0.250" X 1/2" BLK. 2 4681 1.0W 4K7 5% T&R RES 25400 _10P 100V 10%CAP T&R BEAD NPO 2 8889 RUBBER GROMMET #2183-034-BLK 11 4827 1/4W 4K7 5% T&R RES 145402 _15P 100V 10%CAP T&R BEAD NPO 2 3505 3/8" HEATSHRINK FIT 221-3/8 0.333 4639 1/4W 4K99 1% T&R RES 205404 _27P 100V 10%CAP T&R BEAD NPO 1 3645 AC SOCKET RECEPTACLE WITH 0.250 TAB 1 6128 1/4W 4K99 1%MINI MF T&R RES 25406 _33P 50V 10%CAP BLK BEAD NPO 3 3801 5/8" BUMPER BUTTON BLACK 1 4893 1/4W 5K1 5% T&R RES 45408 _47P 100V 10%CAP T&R BEAD NPO 1 3803 NYLON SECUR-A-TACH MINI PLASTIC TIE 1 4862 1/4W 5K6 5% T&R RES 15410 100P 100V 10%CAP T&R BEAD NPO 11 3810 4" NYLON CABLE TIE 15 4800 1/4W 10K0 1% T&R RES 145412 220P 100V 10%CAP T&R BEAD NPO 18 4024 PIPE INSULATE TUBE 3/8" BLACK FOAM 2.5 4829 1/4W 10K 5% T&R RES 635201 470P 100V 5%CAP T&R RAD CER.2NPO 2 3558 TERM HOUSING 4 CIR .156/RAMP 1 4983 1/4W 10K 5%MINI T&R RES 35206 __1N 400V 5%CAP T&R RAD .2FLM 8 3672 6 CIR CABLE HOLDER .098 2 6116 1/4W 10K0 1%MINI MF T&R RES 135274 __2N2 200V 5%CAP T&R RAD CER.2NPO 2 4044 PCB CONN 4 CIR .100 LOCKING 2 4773 1/4W 12K1 1% T&R RES 15420 680P 50V 10%CAP T&R BEAD NPO 13 3538 24 PIN BREAKAWAY LOCK .156 0.167 4775 1/4W 14K0 1% T&R RES 25422 __1N 50V 10%CAP T&R BEAD NPO 4 3668 4 CIR CHASSIS MOUNT HDR .156 1 4830 1/4W 15K 5% T&R RES 45204 _10N 100V 10%CAP T&R RAD .2FLM 2 3549 TRIFURCON TERM .156 4 4771 1/4W 17K8 1% T&R RES 25209 __4N7 250V 5%CAP T&R RAD .2FLM 7 8401 TRAYNOR KNOB, CHROME PLATED 10 4885 1/4W 20K 5% T&R RES 105210 _22N 100V 10%CAP T&R RAD .2FLM 6 8402 TRAYNOR KNOB, CHROME W/STOPPER 1 6123 1/4W 20K0 1%MINI MF T&R RES 255223 _39N 100V 10%CAP T&R RAD .2FLM 2 8636 BUTTON 230X465 RND FLAT BLK (3425) 3 4832 1/4W 22K 5% T&R RES 85301 _12N 50V 10%CAP T&R BEAD X7R 3 9922 BLACK KNOB FROM SEIKAKU 3 4840 1/4W 33K 5% T&R RES 115304 _22N 50V 10%CAP T&R BEAD X7R 2 3428 8' 3/18 SJT AC LINE CORD REMOVABLE 1 4834 1/4W 47K 5% T&R RES 125306 _33N 50V 10%CAP T&R BEAD X7R 14 3826 STRAIN RELIEF HEYCO #1150 1 4803 1/4W 49K9 1% T&R RES 55433 __5N6 50V 10%CAP T&R BEAD X7R 1 8268 TRAYNOR LOGO PLASTIC NICKEL PLATING 1 4895 1/4W 51K 5% T&R RES 45834 _10N 250V 20%CAP BLK RAD POLY FLM 2 8701 4-40 KEPS NUT ZINC 2 4836 1/4W 68K 5% T&R RES 26435 _22N 275V 20%CAP BLK 'X2' 15MM AC 1 8760 6-32 KEPS NUT TIN PLATED 4 4772 1/4W 82K5 1% T&R RES 26451 __4N7 250V 20%CAP BLK 'Y' 10MM AC 1 8800 6-32 KEPS NUT ZINC 9 4838 1/4W 100K 5% T&R RES 295212 100N 63V 5%CAP T&R RAD .2FLM 52 9931 6-32 NYLON INSERT LOCK NUT 2 6120 1/4W 100K 5%MINI T&R RES 25226 _68N 100V 5%CAP T&R RAD .2FLM 7 8787 8-32 KEPS NUT ZINC 3 4776 1/4W 113K 1% T&R RES 45228 100N 100V 5%CAP T&R RAD .2FLM 6 8604 10-32 T NUT 4 4796 1/4W 180K 5%MINI T&R RES 25229 150N 63V 10%CAP T&R RAD .2FLM 2 8890 1/4-20 CAGE NUT C79-88142027 5 4849 1/4W 180K 5% T&R RES 25231 220N 63V 10%CAP T&R RAD .2FLM 2 8797 5/16-18 KEPS NUT JS500 1 4886 1/4W 200K 5% T&R RES 15233 330N 63V 5%CAP T&R RAD .2FLM 8 3916 TO3 SIL-PAD REPLACES MICA 2 4841 1/4W 220K 5% T&R RES 15234 470N 63V 10%CAP T&R RAD .2FLM 8 4022 ELASTOMER PAD - 2-TO218 / 4-TO220 3 4879 1/4W 270K 5% T&R RES 25310 _68N 50V 10%CAP T&R BEAD X7R 3 8581 CUSTOM PBL TRANSISTOR SPACER 3 4865 1/4W 390K 5% T&R RES 15314 100N 50V 10%CAP T&R BEAD X7R 9 4597 22AWG STRAN TC WIR JMP 6 4843 1/4W 470K 5% T&R RES 25322 470N 50V 20%CAP T&R BEAD Z5U 1 4599 22AWG SOLID SC WIR T&R JMP 255 4844 1/4W 1M 5% T&R RES 145600 220N 100VDC 10%CAP BLKRAD POLY FLM 1 5299 24AWG SOLID SC WIR RAD JMP 6 4888 1/4W 4M7 5% T&R RES 15255 __1U 63V 20%CAP T&R RAD .2EL 2 4719 5.0W 0R18 5% BLK RES 2 4751 1/4W 22M 5% T&R RES 45256 __1U 63V 5%CAP T&R RAD .2FLM 10 4729 5.0W 0R27 5% BLK RES 4 8842 #4 X 5/16 PAN QUAD TYPE A JS500 BLK 85257 __2U2 63V 20%CAP T&R RAD .2EL 5 2006 1.0W 1R 5%FLAME PROOF T&R RES 3 8831 6-32 X 1/4 PAN PH TAPTITE ZN 15258 __4U7 63V 20%CAP T&R 8X7MM .2EL 2 4866 1/4W 4R7 5% T&R RES 2 8801 6-32 X 3/8 PAN PH TAPTITE JS500 165259 __4U7 63V 20%CAP T&R RAD .2 22 4875 1/4W 10R 5% T&R RES 2 8829 6-32 X 3/8 FLAT PH TAPTITE BO#C HEA 225933 __4U7 100DC10%CAP BLK RAD POLYE FLM 2 2011 1/4W 11R3 1%FLAME PROOF T&R RES 2 8784 #6 X 7/16 PAN QUAD FRAME BLACK PHOS 6
Input 1
Input 2
Input 2
Channel 1
Channel 2
Footswitch Front PanelDrive Switch
Channel 3
Block Diagram for Keymaster K4D E S I G N E D & M A N U FA C T U R E D B Y Y O R K V I L L E S O U N D
EQ
Bass/Mid/Hi
Bass/Mid/Hi
L
R
L
L
R
L
R
L
L
R
R
L
R
Input 2
RCAInput
In L/Mono
Tube
Gain
Tube/Solid StateSwitch
SolidState
Tube
SolidState
In R
CLIP 1
CLIP 2
CLIP 1
CLIP 2
CLIP 3
CLIP 3
Line Out LL Bus
GND Lift
R Bus
Gain
Master L
Master R
HP
L Tweeter
Woofer
R Tweeter
L Mid
R Mid
HP
L Amp
LF Amp
R Amp
Ch 4 Gain L
Ch 4 Gain L
Gain L
Gain R
12345
EQ
EQ L
EQ R
Voicing Select R
Voicing Select L
12345
L Bus
R Bus
L Bus
R Bus
Channel 4 (Monitor Channel)
Sub Out
HeadphoneT=Left/R=Right/S=Gnd
Solid State
Tube Gain Trim L
RLine Out R
GND LiftSolid State
Tube Gain Trim R Lead Gain R
Lead Gain L
Gain L
Gain R
In L/Mono
In R
In L/Mono
In R
OD EnableCircuit
In L/Mono
In R
XLR
Mic In
In L/Mono
In R
OD EnableCircuit
BLOCK-DIAG-K4-00-1v1.ai
MODEL TYPE: YS1045
w w w. y o r k v i l l e . c o m
REAL Gear.REAL People.
Yorkville Sound550 Granite CourtPickering, OntarioL1W-3Y8 CANADA
CanadaVoice: (905) 837-8481Fax: (905) 837-8746
Yorkville Sound Inc.4625 Witmer Industrial EstateNiagara Falls, New York14305 USA
U.S.A.Voice: (716) 297-2920Fax: (716) 297-3689
SERVICE BULLETIN
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K4 Pre-amp Tube ReplacementThe Two 12AX7A/7025A tubes are inside the chassis. To remove the chassis from the cabinet follow these instructions.
1. Unplug all connections. Make sure the K4 is unplugged from the AC main line and remove all instrument and other cable connections.
2. Remove K4 Chassis from cabinet. Before removing K4 chassis from speaker cabinet, make sure to unplug the speaker connectors.
a) Remove the five top bolts and loosen the vent screws holding the k4 chassis to the cabinet; this will enable you to push the chassis forward approximately 2 inches until the speaker wire connections at the rear left will be visible.
b) Disconnect the connecter while noting the orientation of the locking fingers for when you re-connect them after the tubes have been changed. Continue pushing the chassis forward until it is out of the cabinet.
If the chassis snags on the cabinet vinyl, reverse the process and push it out the back of the cabinet. You may find it worthwhile to insert thin strips of plastic as shims between the chassis and cabinet down the sides to reduce the chance of snagging.
5. Once the chassis is removed, using a small Phillips screwdriver, remove the 20 screws that are used to mount the amplifier lid. You will find the tubes near the front of the chassis on the left side (looking from the front). They are held in place with a retaining bracket which needs to be unscrewed and removed before you pull the 12AX7/7025s out of their sockets. Remove the tube-retainer bracket screws, and pull the bracket upward. Proceed to replace the two 12AX7A/7025A tubes.
6. Reinstall the tube bracket and chassis lid screws.
7. Slide the chassis carefully back into the cabinet remembering to clear the speaker wires; don’t forget to reconnect the speaker wires before sliding the unit into its final position.
8. Reinstall the large retaining bolts and tighten-down the vent plate screws.
Amp CoverLid Screws (20)
Tube retaining bracket
Tube retainingbracket screws (2)
K4 Amplifier
Tubes
Speaker Connection
Lid and Tube Retaining Bracket
w w w. y o r k v i l l e . c o m
REAL Gear.REAL People.
Yorkville Sound550 Granite CourtPickering, OntarioL1W-3Y8 CANADA
CanadaVoice: (905) 837-8481Fax: (905) 837-8746
Yorkville Sound Inc.4625 Witmer Industrial EstateNiagara Falls, New York14305 USA
U.S.A.Voice: (716) 297-2920Fax: (716) 297-3689
SERVICE BULLETIN
�
Remplacement des Lampes Pour le Préamplificateur K4 Les deux lampes 12AX7A/7025A sont à l’intérieur du châssis. Pour retirer le châssis de l’enceinte suivez les instructions ci-dessous.
1. Débranchez toutes les connexions. Assurez-vous que le K4 est débranché du circuit CA et débranchez tous les autres câbles incluant les instruments.
2. Assurez-vous aussi de débrancher le connecteur du haut-parleur, et retirer ensuite le châssis de l’enceinte.
a) Enlevez les cinq boulons du dessus et desserrer les vis de la plaque d’évent qui tiennent le châssis à l’enceinte; cela vous permettra de pousser le châssis vers l’avant d’environ 2 pouces jusqu’à ce que les connexions du câble de raccordement pour haut-parleur à l’arrière gauche soient visibles.
b) Débranchez le connecteur en prenant note de l’orientation du joint de verrouillage pour raccorder correctement le connecteur une fois les lampes changées. Continuez ensuite de pousser le châssis vers l’avant jusqu’à ce qu’il soit sortie de l’enceinte.
Si en le sortant par l’avant, le châssis se trouve coincé sur le vinyle de l’enceinte, renversez le processus et poussez-le vers l’arrière de l’enceinte. Vous trouverez peut-être préférable d’insérer de minces bandes de plastique comme cale entre le châssis et le cabinet pour réduire les chances d’accrochage.
5. Une fois le châssis enlevé, à l’aide d’un petit tournevis de type Phillips, enlevez les 20 vis utilisées pour fixer le couvercle au châssis. Les lampes sont situées près du devant du châssis sur le côté gauche (vue du devant). Elles tiennent en place à l’aide d’une fixation qui doit être dévissée et enlevée avant que vous puissiez tirer les 12AX7/7025 de leur douille. Enlevez les vis des fixations et tirez les fixations vers le haut. Procédez au remplacement des deux lampes 12AX7A/7025A.
6. Réinstallez les fixations et le couvercle du châssis à l’aide des vis fournies.
7. Glissez avec prudence le châssis dans l’enceinte en gardant les fils de haut-parleur accessibles; n’oubliez pas de reconnecter les fils de haut-parleur avant de glisser l’appareil jusqu’à sa position finale.
8. Réinstallez les gros boulons et resserrez les vis de la plaque d’évent.
Amp CoverLid Screws (20)
Tube retaining bracket
Tube retainingbracket screws (2)
K4 Amplifier
Tubes
Speaker Connection
Lid and Tube Retaining Bracket
1
SERVICE BULLETIN
January 29, 2009
The K4 is a powerful 300-Watt compact and light-weight combo amplifier for keyboards. The product houses 5 drivers in it's speak-er section and a chassis that has 3 amplifiers, a set of tubes, 2 fans (with heat sinks) and 6 circuit boards. All of these compo-nents potentially rattle and/or buzz at various frequencies. Yorkville uses a specific method to help prevent the sound energy from being transferred from to the speaker compartment to the chassis.
Yorkville has taken great care by using dampening foam inside to help reduce a great deal of rattling. Special foam and rubber washers are also used for mounting the chassis to the cabinet. The top 5 chassis mounting bolts are not fully tightened, this helps prevent the transference of the sound energy to the chassis from the speakers.
Over tightening the top 5 bolts may result in rattle and buzz!
If chassis is removed and replaced, we recommend using a Phillips head screw driver and tighten each bolt so that the top of the head is just above the surface of the cabinet. To test if the mounting is done correctly, apply a little force to the front and then the back of the chassis if it moves too much, retighten the bolts and redo the test again.
KEYMASTERk4k4
Top
Facing Front
Bottom
24-i
nch
Yel
low
24-inch White
24-i
nch
Bla
ck
15-i
nch
Bla
ck
15-i
nch
Bla
ck
15-i
nch
Bla
ck
15-inch Orange
19-i
nch
Bro
wn
18-i
nch
Red
18-i
nch
Wh
ite
RTV
RED
WHITE
RTV
BLACK WHITE
BROWN
C93 5933
4U7100V
YELLOW
ORANGE
100V4U7
#7286
L-TWEETER
#7388
WOOFER
R-MID
#7405
#7286R-TWEETER
L-MID
#7405
K4 FINISHING Wiring Diagram
FINISHING-K4-speaker-wiring-00-1v1.pdf
#7405 #7405
#7286#7286
#7388
LE
FT
TW
EETER
LE
FT M
ID RIGHT MID
RIGHT TW
EE
TER
WOOFER
11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
Product
Date:Filename:
PCB#
M1238V04sch.sch2002
K4Tue Jun 22, 2010
M1238 ofSheetRev:
31V04
Product
Date:Filename:
PCB#
M1238V04sch.sch2002
K4Tue Jun 22, 2010
M1238 ofSheetRev:
31V04
1/4W10K
R53
.
1/4W10K
R14
.
1/4W 22K
R57
.
1/4W 22K
R18
.
1/4W47K
R54
.
1/4W47K
R15
.
1/4W 2K2
R77
.
1/4W 2K2
R38
.
W37
W35
C20100V68N
C3100V68N
R1431/4W
MINI1K0
R1521/4W
.82K5
W1
4.75" 8r 30WPGM
1/4WMINI
10K0
R160
1/4WMINI
10K0
R133
1/4W 1M
R69
.
BAV21
D10
C22100V68N
1/4W 1M
R30
.
BAV21
D4
C5100V68N
1/4WMINI
20K0
R162
1/4WMINI
20K0
R158
1/4W 10K
R72
.1/4W 1M
R71
.
BAV21
D8
1N5240BRL D7
0W510V0
1/4W 10K
R33
.1/4W 1M
R32
.
BAV21
D3
1N5240BRL D1
0W510V0
1/4W 2K
R167
.
1/4WMINI10K
R165
1/4WMINI10K
R164
1/4WMINI
10K0
R168
1/4W
.
R6722K
R581/4W
.2K2
TO92
MPSA56
Q145104
1/4WMINI2K
R183
1/4W 10K
R40
.1/
4W
.
R2822K
R191/4W
.2K2
MPSA56
Q45104
TO92
1/4WMINI2K
R182
1/4W 10K
R1
.
1/4W.
4K3
R170
100P 100VC87
1/4W.
4K3
R169
100P 100VC86
R641/4W
.220R
50VC29
22U
R601/4W
.10K
Q155104TO92
MPSA56
R251/4W
.220R
50VC13
22U
R211/4W
.10K
5104TO92
MPSA56
Q3
1/4W 4K7
R136
.
4148
D48
U3:B
LM13600N
R411/4W
.10K
U3:A
LM13600N
U3:
E
4148D51
4148
D49
1/4W 3K3
R140
.
R1411/4W
MINI20K0
1/4W 100K
R74
.50VC32
680P
R621/4W
.10K0
50VC24
22U
1/4W 100K
R35
.50VC15
680P
R231/4W
.10K0
50VC7
22U
1/4W 1K8
R52
.
1/4W 22K
R42
.
1/4W2K2
R27
.
1/4W 1K8
R13
.
X58
W43BLK
MJF6388
6815Q35
T221D
1/4W680R
R50
.
25VC25
68U
1/4W680R
R11
.
25VC8
68U
1/4W 470K
R154
.
4148D53
BD139
TO1266774Q21
1/4W10K
R51
. 1/4W15K
R49
.
1/4W 270R
R61
.
BD139
TO1266774Q10
1/4W10K
R12
. 1/4W15K
R10
.
1/4W 270R
R22
.
1/4W 2K49
R153
.
TO92
Q385113
MPSA42
NTC10K
R156:A
6467
R761/4W
.12R
50VC23
100N
R371/4W
.12R
R71/4W
.12R
50VC6
100N
R1461/4W
.22K
1/4W 1M
R147
.
R1501/4W
.1K3
1/2W 22R
R75
.
5.0W 0R27
R70
.
5.0W 0R27
R55
.
1/2W 22R
R36
.
5.0W 0R27
R31
.
WHTW3
SPKR/L-MID
5.0W 0R27
R16
.
R1511/4W
.82K5
5" 8R30WPGM
+MID
SP4
W4
4.75" 8r 30WPGM
5" 8R30WPGM
+MID
SP2
W30AG
BLK
1/4WMINI
10K0
R161
1/4WMINI
10K0
R157
1/4W 10K
R43
.
1/4W 10K
R4
.
BAV21
D9
BAV21
D2
4V
+11
V-
U1:E
1/4W 2K
R166
.
1/4W 1K
R65
.
1/4WMINI
10K0
R171
1/4W 1K
R26
.
4V
+11
V-
U7:E
NTC10K
R134:A
6467
R21/4W
.10K
4148D50
1/4W 10K0
R139
MINI
1/4W2K2
R66
.
BC560C
Q175102
TO92
1/4W 22K
R3
.
BC560C
Q65102
TO92
1/4W 3K3
R5
.
R61/4W
.3K3
1/4W 3K3
R44
.
R451/4W
.3K3
1/4W 47R
R78
.
1/4W 47K
R155
.
FAN
21/
4W 47RR39
.
50VC1
1N
50VC18
1N
50VC34
1N
R461/4W
.12R
50VC17
1N
250VC33
10N
4148D52
W6BRN
SPKR/ R-MID
250V
10NC16
R1491/4W
.10K
SP1
HORN7286
C19100V68N
D5
4148
C2100V68N
C74100V47P
R291/4W
.33K
R171/4W
.10K
W51:A 2
W49:B 2
TP4
C27100V10P
TP3
TP1
100P 100VC80
1/4WMINI
20K0
R163
C8263V 4U7
100P 100VC79
1/4WMINI
20K0
R159
C8163V 4U7
U8:A
TL072
16VC28
10U
1N5240BRL D12
0W510V0
D11
4148
R591/4W
.4K7
1/4W 10K
R48
.
C2150V68N 1/4W
.1K
R184
16VC11
10U
1N5240BRL D6
0W510V0
TO92
MPSA42
Q85113
R201/4W
.4K7
1/4W 10K
R9
.
C4100V68N
1/4W.
1K
R181
U2:B
NE5532N
1/4W 20K
R137
.63V
C732U2
8V
+4
V-
U2:C
U2:A
NE5532N
R681/4W
.33K
R731/4W
.220R
TO92
Q205119
2N5638
R471/4W
.22M
R561/4W
.10K
TO92
BC560C
Q165102
R341/4W
.220R
TO92
Q95119
2N5638
R81/4W
.22M
W51:B 2
W49:A 2
R1441/4WFLMP
11R3C85
160V10U
63VC31
4U7100V
C3015P
R631/4W
.47K
TO92
Q135101
BC550C
CUT OUT R49, R51UNTIL 2 TO 4 mVIS ACROSS TP3 ANDTP4 WITH AMP COLD
63VC14
4U7 100VC12
15P
TP2
R241/4W
.47K
TO92
BC550C
Q25101
1/4W 100K
R148
.
Q365104
TO92
MPSA56
100VC91
4U7
TO92
Q185104
MPSA56
U8:B
TL072
8V
+4
V-
U8:C
M
LIN
P2:A
4032
10K
CH-4 GAIN
TO92
MPSA42
Q195113
TO92
MPSA56
5104Q7
U1:A
MC33079P
U7:C
MC33079P
1/4W 470K
R138
.
R1421/4W
.390K
NTC10K
R135:A
6467
U1:C
MC33079P
(VCC)
LM13600N
Dual VCA6745U3:D
TO92
BC560C
Q55102
U7:B
MC33079P
(VCC)
LM13600N
Dual VCA6745U3:C
R1451/4WFLMP
11R3
TO92
Q395102
BC560C
TIP147Q22
TO2186903
FAN
1
CUT OUT R10 , R12 UNTIL 2 TO 4 mVIS ACROSS TP1 ANDTP2 WITH AMP COLD
C10100V10P
TIP147Q11
TO2186903
TIP142Q1
TO2186902
TIP142Q12
TO2186902
14
W47:A
Q37
MPSA42
TO925113
100VC90
4U7
SP3
HORN7286
44
W47:D
M
LIN
P2:B
4032
10K
CH-4 GAIN
GND=GROUNDAG=AMP GROUNDSG=SIGNAL GROUND
U7:A
MC33079PS TR
---
J1LEFT
U1:B
MC33079P
S TR
---
J2RIGHT
U1:D
MC33079P
U7:D
MC33079P
11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
Product
Date:Filename:
PCB#
M1238V04sch.sch2002
K4Tue Jun 22, 2010
M1238 ofSheetRev:
32V04
Product
Date:Filename:
PCB#
M1238V04sch.sch2002
K4Tue Jun 22, 2010
M1238 ofSheetRev:
32V04
4148D270A45
1/4W 4R7
R97
.
1/4W 18R
R96
.
1.0W 4K7
R84
.
4148D55
4148D54
1/4W 1K
R99
.
3W34:C 4
1W34:A 4
CURRENT LIMIT
R981/4W
.68R
TP6
TP5
3 W47:C4
W41RED
4W34:D 4
2W34:B 4
R941/4W
.10K
1/4W2K
R172
.
1/4W
.2K
R88
1/4W 2K
R89
.
IN FROM M1239PRE-AMP
4148D280A45
D31
0A454148
4148D18
1/4W 2K
R106
.
4148D16
1/4W.
249R
R177
1/4W.
249R
R176
D23
0A2 BAT85
D22
0A2 BAT85
1/4W 10K
R105
.
C37100V100P
R931/4W
.10K
1/4W.
4K99
R175
1/4W.
4K99
R178
R1251/4W
.270K
R1131/4W
.270K
R911/4W
.2K05
4
6
5
4N35U13:B
6880
1/4W 75R
R104
.
M
Lin4529
470R
P1.
Q405102
BC560C
TO92
1/4W 4R7
R102
.
Q265101
BC550C
TO92
C7763V
1U
Q345102
BC560C
TO92
Q235101
BC550C
TO92
TO92
BC560C
Q425102
R1901/4W
.47K
4148D19
BD237
6787Q27
TO126
.
R2011/4W
.100R
R1991/4W
.100R
1.0W 4K7
R111
.
5.0W 0R18
R95
.
R2041/4W
.100K
R2071/4W
.22M
R2081/4W
.15K
R2031/4W
.200K
R1941/4W
.22M
R1931/4W
.15K
5.0W 1K
R112
.
1N4745A D20
1W016V0
1N4745A D17
1W016V0
5.0W 1K
R85
.
1/4W 49K9
R205
.
R2061/4W
.47K
8V
+4
V-
U14:C
R1101/2W
.150R
R1141/2W
.150R
50VC36
68N
R831/2W
.150R
W40WHT
8V
+4
V-
U6:CC41
50V470N
D26
0A454148
R1161/4W
.47K
U6:B
NE5532N
U4:A
TL072
8V
+4
V-
U4:CR1171/4W
.22K
R1081/4W
.4K12
R871/4W
.2K87
R1871/4W
.470R
R1861/4W
.220K
1/4W 4K12
R119
.
Q325102
BC560C
TO92
1/4W 4K12
R80
.
R1891/4W
.20K
1/4W 150R
R120
.
1/4W 150R
R81
.
BD238
6788Q33
TO126
.
R2021/4W
.100R
R2001/4W
.100R
5.0W 0R18
R101
.
U15
:E
R861/2W
.150R
R1091/2W
.150R
50V
68NC44
R821/2W
.150R
3 W10:C4
2 W10:B4
R1911/4W
.100K
LIMITER DRIVE
R1241/4W
.47K
C42100V27P
X77
R921/4W
.10K0
63VC40
1U
4 W10:D4
1 W10:A4
1/4W.
4K99
R174
U12:A
TL072
1/4W.
4K99
R1731/4W
MINI10K0
R179
RED
LD1
6405
.
1N5225B 3V0D56 0W5
C4550V5N6
4148D24
R1031/4W
.47R
D21
0A2 BAT85
R901/4W
.47RC39
50V680P
D15
0A2 BAT85
Q255101
BC550C
TO92
C3550V12N
(VCC)
LM13600N
Dual VCA6745U15:D
{Function}
1/4W 3K
R185
.
1/4W 470R
R188
.
TO92
BC550C
Q415101
400VC26
1N
POWER AMPLIFIER
4007D25
63VC43
470U
TO36910Q30MJ21195
63VC38
470U
R1981/4W
.33K
R1951/4W
.33K
U14:B
MC33078P
R1921/4W
.47K
12" 2R 170WPGM
WOOFER
SP57388
24
W47:B
R1071/4W
.12K1
TO92
Q295119
2N5638
R1001/4W
MINI10K0
1/4W.
10K0
R180
8V
+4
V-
U12:C U12:B
TL072
RED
LD2
6405
.
1/4W 10K0
R118
.
Q315102
BC560C
TO92
U4:B
TL072
1
2
4N35
U13:A
6880
1/4W 10K0
R79
.4148D13
(VCC)
LM13600N
Dual VCA6745U15:C
{Function}
WITH AMP COLDADJUST P1 FOR2 mV ACROSS TP5AND TP6
MJ21196
6909TO3
Q28
W8
{Function}
{AWG}RED
R1971/4W
.33K
R1961/4W
.33K
4007D14
U14:A
MC33078P
LM13600NU15:A
LM13600NU15:B
WARNING: 120 VDC IS BETWEEN C55 TO GROUND.THIS PRESENT A SIGNIFICANT SCHOCK HAZARD. PLEASE, USE EXTREME CAUTION WHEN SERVICING!
TO92
Q245122
J109
U6:A
NE5532N
S TR
---
J3SUB-OUT
11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
Product
Date:Filename:
PCB#
M1238V04sch.sch2002
K4Tue Jun 22, 2010
M1238 ofSheetRev:
33V04
Product
Date:Filename:
PCB#
M1238V04sch.sch2002
K4Tue Jun 22, 2010
M1238 ofSheetRev:
33V04
F2FUSE
4 3
BLU.
W22W7
2
S4
1
BRN.
50Hz
D45
6A2
4007D35
4007
D34
GRN/YELL
BLUE
250V
4N7
50V
22N 230/240VAC
XF1_CH1339E
240VACBRN/BLK
6A2
D43
D46
6A2
D42
6A2
3W2:C 4 2 W5:B4
BROWN
W20
CHASSIS GND
.GRN
F13414
FUSEHOLDER
W14SW.BLK
C64
W21
SW-WHT
W22
XFMR-BLK
W17
SW.BLK
C61
W18
W50_BLUTUBE AG2
D44
6A2
6A2
D41
6A2
D40
63VC9
1U
5 AMP SB
F3
FUSEHOLDER
5 AMP SB
F2FUSEHOLDER
1/4W 2K2
R130
.
FAN-AG
W43_BLK BLK
W9
SPKR/AG
R1311/2W
.22R
63VC66
100N
R1291.0WFLMP1R
50VC53
33P
IN
REF
OUTMC7815CT
6872
U10
63VC72
100N
63VC70
100N
63VC54
1U
R1271.0WFLMP1R
W12WHT
63VC84
100N
63VC89
100N
1W2:A 4
2W2:B 4
4W2:D 4
63VC76
100N
4 W5:D4
3 W5:C4
1 W5:A4
W19
AC-BLK
IEC_RECT
275VC61
22N
7
6
1
2
3
4
5
T1
4007D39
6A2
D47
W13TUBE/AG1
BLK
1/4W 5K6
R126
.63V
C491U
63VC48
1U
B CTO-92
MPSA63
MPSA43
2N5551
E
MPSA56
MPSA06MPSA13
2N5401BD139BD237BD238MJE340MJE350MJE271MJE270BD140
E C B
160VC58
220U
TUBE AG2W50 BLU
S GTO-92
2N5638
D
J109
B ETO-92
BC560C
C
BC550C
6840_PC
63VC65
100N
R1321.0WFLMP1R
63VC69
100N
W29WHT
-29VDC
63VC83
100N
63VC88
100N
IN
REF
OUTMC7915CT
6871
U11
IN
REF
OUTMC7815CT
6872
U9
63VC75
100N
SCH_DPDT{Value}
W28_ BRN
4148D36
EUROPEAN POWER SUPPLY
C64250V4N7
W27GRY
W26RED
S1
DPDT Switch
W24RED
W23GRY
W18XFMR-BLK
4007D38
50VC62
3300U
50VC63
3300U
W29_ WHT
50VC59
3300U
R1281/4W
.1M
160VC55
220U
4007
D37
C52160V220U
W11
TUBE120VDC
RED
63VC68
100N
63VC47
100N
63VC57
1U
50VC56
33P
63VC51
1U
50VC50
33P+29VDC
W28BRN
W25
XFMRYEL
D33
0W522V0
1N5251BRL
50VC60
3300U
6882_PC 6884_PC
63VC67
100N
63VC71
100N
63VC46
100N
6745_PC
CSA-5 A / 120 V
CE-T3.15 A / 230V
6804_PC
REF KNOBPART#MODEL(S):-
FUNCTION
RR
RRR
RRR
RRR
P2
FF
FFF
FFF
FFF
CH-4 GAIN
KK
KKK
KKK
KKK
9922
PP
PPP
PPP
PPP
4032
POT LIST
NN
NNN
NNN
NNN
{NEW}N
K4
13
10
7
4
1
9
1112
8
#
23
56
VER#MODEL(S):-
DATE DESCRIPTION OF CHANGE
V
V04
.
3.00
1.00
VV
.
.
.
.
.2.00
D
14-MAY-2010
.
13-FEB-2008
08-FEB-2007
N
PC8097: replace routing, add XH connectors GG
NODE N122 DELETED.
PC#7291,REPLACE FAN EYELETS WITH MOLEX.
FIRST PROTO
K4
DD
.
.
.
.
.08-MAR-2007
NN
PC#7592, NEW #6787 & #6788 NEED NO THERMO PADFORCE UPDATED
PC#7437,REDUCE HUM,ISOLATE AC SECTION.PC#7277,VALUE CHANGE PRIME CE F1 TO T3.15A #2475.
PC#7281,CHANGE W3,W6,W8 & W9 TO NORMAL EYELETREPLACE OPTOCOUPLER
M1238 DATABASE HISTORY
VCDCLINCH
ORIGIN LONG AXIS
SH
OR
T A
XIS
INSERT
ORIGIN
Pcb Mech V04M1238
BlankSize - 16600x11000
TAB
NORMAL
SOCKET
SOCKET WITH DIRECTION
NORMAL LARGE
SOCKET UPSIDE DOWN
Top Assy V04
8829 SCREW
TOOLING PIN 8829 SCREW TOOLING PIN
M1238
SEE LAYOUT DOCUMENTATION
VTR
VTR
RTV
RT V
VTR
VTR
VTR
VTR
VTR
VTR
VTR
VTR
VTR
1 4
VT RVT R
VTRVTR
RT V
VTR
VTR
BAR DOWN
RTVRTV
EB C
EB C
BA
R D
OW
N
BAR DOWN
BA
R D
OW
N
VTR
7
RTV
B R2 1
16
1 6
BAR DOWN
B R2 1
14
EB C
E BC
1234
PCB CONN 4 CIR BOTTOM .156
BAR DOWN
BAR DOWN
VTR
BAR DOWN
7 7
1 2 3 4
PCB CONN 4 CIR BOTTOM .156
.
.
RIGHTSUB-OUT LEFT
CH-4 GAIN
5834
2337
5101
3538
646764056405
6434
6871
6815
4729
6774
4729
6467
5101
5834
4729
4729
6788
6434
4719
4726
6434
6434
6435 34
14
4529
4726
4719
3498
4056
2343
2327
6434
6467
6451
3602
4056
6872
2337
6872
6787
6909
6903
6902
6903
6902
6774
3903
6910
6434
6434
6880
6434
3498 3498
4032
3903
3414
3414
4K99
10K
4K3
68N
10K
2K2 41
48
10K
10K
22M
220R
10K
10K
68N
10K0
220R
3K3
2K2
20K0
1K0
2U263V 4148 20
K
10V0
10V0
22K
47K
47R
150R
12N
414868R
470N
270K
47K
75R
10K
2K87
4K12 12
K1
150R
47K 49
K9
100K
100N
4148
15K
2K49
82K5
10K
249R
10K
249R
33K
68N
2K2
220R
4K310
K22
V05K
6
20K0 10
0P
10K68
N20
K0
10K
390K
22K
4148
10U16V
10K0
4007
100P
2K47
K
10K
1R 1.0W
4148
MPS
A56
4148
10V0
11R
3
22K
12R
BAV2
11M
10K0
10K 10
N
47R
680P
270R
680R
2K2
10P
15K
10K
1K8
100N
3K3
2K2
3K3
1N1K
8
12R
10K
4U763V
100K
270R
22R
1/2W
47R
1N
10V0
1M22
K
22K
4007
BAT8
5
10K0
4007
4148
47R
1/2W
150R
4148
4R7
270K
16V0
10K
100N
2K
10K0
5N6
4K12
68N
100R
100K
10K0
1/2W
150R
200K
82K5
47K
33K
1K3
100K
22K
100N
2K
100N
1U
3V0
10K0
470R
BC560C
1N
1U 63V
10K0
68N
1U63V
2K
1M
100N
100N
4K722
K
22M
MPSA561K
47K
10K0 10
0P
100N
MC
33079P
68N
10K0
100N
100N
10K0
TL072
10K
68N
MPSA56
10K
50V
22U
4148
33K
20K0
100N
BAV2
1
MPSA42
4K7
4148
BAV2
1
BAV2
1
BC550C
BC560C
10P
68U25V
2N56
38
MPS
A42
BAV2
1
10K
BC55
0CBC
550C
RED RED
4148
2K0510
K
41484148
100P
NE5
532N
47K
4R7
100N
6A2
33K
4148
33K
MC
3307
8P
27P J1
09
100N
BC560CBC560C
47K
BC56
0C
22M
100R
MPSA56
470K
4K99
220R
2K
100P
4007
1K
100N
MC
3307
9P
MPSA56
4K99
10K0
10K
4K99
1U
33P
4007
33P
68N
220U160V
10K0
10K0
10K0
20K0
47P
4K7
470K
NE5532N
TL072
1M
33P
MPS
A56
TO220
MC7915CT
T221D
MJF6388
1.0W 1R
1M
11R
3
MPS
A56
1K
1K
22U50V
5.0W
0R27
1N
TO126
BD139
5.0W
0R27
2N56
38
3K3
4U763V
2K2
15P
10K
BC550C
3K3
100K
47K
12R
BAV2
1
1N 100N
BC560C
10N68
0P
680R
15K
2K2
15P
0R27
5.0W
22U50V
5.0W
0R27
12R
4007
BD238
TO126
6A2 16
V0
5.0W
0R18
5.0W 1K
4007
6A2
6A2
18R
4K12
1K
22N
275V
4148
4148
BAT8
5
BAT8
5
4148
BAT8
5
68N
150R
1/2W
1/2W
150R
470R
50V3300U
50V3300U
680P
2K
TL07
2
5.0W1K5.0W
0R18
100R
BC55
0C
150R
1/2W
4148
1/2W
150R
MPS
A42
100R
33K
1M
MPS
A42
22K
LM13
600N
10K
100N
2K
2K
1U
3K
470R
20K
22M
220U160V 220U
160V
10K 1U
10U160V
10U
16V
50V22U
4U7
63V
4U763V
BC560C
68U25V
6A2
4148
220K
1U
10K
1U
2N5638
100N
4K7
1.0W
1.0W 4K
7
250V4N7
47K
15K
BC560C
1R 1.0W
10K
TO220
MC7815CT
TO220
MC7815CT
Yellow
100V
4U7
BD237
TO126
MJ21196
Body
BC560C
TO21
8
TIP1
47
TO21
8
TIP1
42
TIP1
47
TO21
8TO
218
TIP1
42
22R
1/2W
BD139
TO126
100V
4U7
MJ21195
Body
6A2
100N
6A2
50V3300U
3300U50V
4N35
BC56
0C
BC55
0C
63V
470U 470U
63V
6A2
LM13
600N
LIN
10K
22R1/2W
SG
+15R
AG
SG -15
+15
K44/5
K4
V04
V04
K4
L-15
LOWSIG
LAG
R
2/5
1/5M
1238
M12
38
SG
V04
V04
K4
5/5
M1238
K4
PRE-
AM
P
M1238V0
4
M1238
WARNING!120V DC ISBETWEENC55 TO GROUND
3/5
SET P1 FOR 2 mVBETWEEN TP5AND TP6
R17
8
R21
R17
0
X46
X75
X60
C19
R53
X48
R13
0
D36
R14
X38
X37
R60
R47
R73
R41 R
48
C20
R15
7
R64
R14
0
R58
R16
2
X40
R14
3
C73
X74
X33
D49
R13
7
D1
D7
X42
R3
X1
X10
R24
X11
R90
X59
R81
C35
D31
R98
C41
R12
5R
124
R10
4
X78
R93
R87
R10
8
R10
7
R12
0
R20
6X3
2
R205
X65
X66
R191
C47
X82
D54
R19
3R
153 R15
1R
149
R17
6
R17
X57
R17
7
R29
C21
R19
R34
R16
9R2
D33
R12
6
R15
9C
79
R4
X50
C5
R15
8
R1
R14
2R
67
D50
C28
R13
9
D35
C80
R18
3 R54
R33
R127
D5
Q14
X35
D11
D6
R14
5
R18 R7
D2
R30
R62
R72
C33
R39
C32
R22
R11
R38
C27
R10
R12
X9
R13
C6
R44
R66
R5
C17
X8
R52
R37
R51
C31
R35
R61
R36
X21
R78
C18
D12
R69
R57 R42
D14
D15
X13
R79
D25
X6D
19
R10
3
R82
X19
D26
R97
X20
X17
R11
3
D20
R10
5C
65
R10
6
R92
C45R
119
C44
R20
2R
204
R11
8
R11
0
R20
3R
152
R15
5
R19
5
R150
R148
R11
7
C67
X70X49
R182
X47
X52
X44
X58
C83
C51
TP4
X27
X26
X28
X77
X69
D56 R100
TP6
R187
Q40
X79X80
X83
C26
C77
X34
R16
8
C4
C49
R89
R12
8
C72C71
R20
R28
R8
Q4
R181
R15
R17
1
C87
C68
U1
C22
X61
X63
R18
0
C89
C88
R17
9
U12
X45
R9
C2
W34
X39
W50TUBE AG2BLU
X23
Q15
R56
C29
X62
X15
D51
R68
R14
1C
69
D3
W28
+29VDCBRN
Q8
X41
R13
6
D48
W39+29V
RED
D4
D8
W6
SPKR/ R-MID
BRN
X4
Q13
Q17
W4
R-TWEETERORN
C10
C8W3WHT
SPKR/L-MID
X22
X12
Q9
X25
Q19
D10
W47
W23GRY
R134
W20
CH
ASS
IS G
ND
GR
N
X29
W27GRY
Q25 Q26
W17
BLK
-SW
W22
XFM
R-B
LK
W21
SW-W
HT
W25
XFMRYEL
LD1LD2
D28
TP5
W19 AC
-BLK
W39_RED
R91
R94
X56
D16
D18
C37
U6
R11
6
R10
2
X71
X76
C75
W24RED
D42
R19
7D55
R19
8
U14
C42
X64
Q24
C46
X14
Q31
Q32
CAUTION!Replace with sametype and value fuse.
5-AMP SB
R19
2
Q42
R19
4
R19
9
W38BLK-15V Q36
R15
4
R17
3
R25
R88
C86
D34
R26
C66
U7
Q3
R174
R13
3
R43
R175
C57
C56
D37
X68
C53
C3
C52
R23
R16
1
R16
0
R16
3
C74
R59
R13
8
U2
U8
R32
C50
Q7
U11
Q35
X36
R12
9R
71
R14
4
Q18
R18
4
R65
C7
R16
C1
TP1
Q10
R70
Q20
W30AGBLK W41
RED
WO
OFE
R
R6
C14
R27
C12
R135
Q2
X2
X3
R45
R74
R63
R76D9
C34
C23
Q16
W37
R-MIDBRN
X43
C16C15
X5
TP2
R50
X7
R49
R77
C30
R31
BECLOC
X24
C24
R55
R46
D38
Q33
D40
D17
R95
R85
D39
D47
D43
R96
R80
R99
C61
W18
XFM
R-B
LK
D13
D27
D23
X16
D22
W9SPKR/AG
BLK
D24
D21
C36
X72
X73
R86 R83
F1
CAU
TIO
N!
Rep
lace
with
sam
ety
pe a
nd v
alue
fuse
.CSA
-5 A
MP
CE-
T3.1
5 A
/ 23
0V
P1
X30
W29_-29VDCWHT
C63
C60
C39
R17
2
U4
R112
R10
1
R20
1
Q41
R10
9
D53
R11
4
Q38
R20
0
R196
R147
Q37
R14
6
U3
J2
-
-
-
X31
X54
X55
X53 X84
R40
C84
R167
R166
C9
X67
R185
X81
R188
R189
R207
C55 C58
R165 C54
C85
W49
C11
C13
W16
W1
L-TWEETERYEL
W15
X51
C81
C82
X18
Q6
C25
W26RED
D46
W13BLK
TUB
E/A
G1
D52
W43_BLK
FAN-AG
R18
6
W28_+29VDCBRN
C48R156
C40
Q29
C76
R111
R84
W8RED
SPKR/WOOFER
W7
DU
MM
Y
W14 SW
BLKC64
R190
R208
Q39
R13
2
R164
W48_
.
GRN
W29
WHT-29VDC
W12WHT
+15V TUBE
W11RED
TUBE120VDC
W38_-15V
BLK
W51
U9
W10
U10
W48. G
RN
W43
BLK
W35WHT
L-MID
C90
Q27
Q28
Q5
Q11
Q12
Q22
Q1
R75
TP3
Q21
W2
W40WHT
WO
OFE
R C91
Q30
D44
C70
D45W50_
BLU
TUBE AG2
C59
C62
U13
Q34
Q23
C38C43
CAUTION!Replace with sametype and value fuse.
5 AMP SB
D41
U15
J3
-
-
-
J1
-
-
-P2
W5
F2
R131
F3
SEE LAYOUT DIAGRAM
M1238 PRODUCTION NOTES1--ADD THERMAL JOINT COMPOUND (GOOP) BETWEEN Q25 AND Q26; Q31 AND Q32 . COVER WITH VINYL CAP (8609) AND RTV.2--ADD RTV TO ALL CAP'S.3--Q2 , Q13 , R134 , R135 , R156 ARE HAND INSERTED.4--C90 AND C91 RTV AND BEND FLAT5--CHECK THE PICTURE FOR MOUNTING THE TO-220 AND TO-218.6--Q23 & Q33 ( #6787 & #6788 ) DON'T NEED ANY THERMO PAD OR SILICON JUST PUT SOME THERMO CONDUCTIVE COMPOUND (WHITE GREASE)
PCB
Sil pad
8833 screw
Inner heatsinkOuter heatsink
8581TO220 parts
88413977 - Yellow spring
8833 screw
Inner heatsink
8581
Outer heatsink
TO218 partsSil pad
8841
PCB
3719 - Spring
NE5532NMC33079P
TLO72
LM13600N
MC33078P
PIN CONFIGURATION
SEE LAYOUT DIAGRAM
BD139BD237BD238MJE340MJE350MJE271MJE270BD140
E BC
D GSTO-92
2N5638J109
C EBTO-92
BC560CBC550C
6
4
2
+V
1
-V
4
9
11
13
7
5
3
1
2 3
8
10
12
14
FUNCTION KNOBREFMODEL(S):-
PART#P2 CH-4 GAIN 4032 9922
POT LISTK4
4
2
-V
A
5
7
3
1
B
+V
6
8
4
2
-V
A
5
7
3
1
B
+V
6
8
5
2
#
6
34
1DATE
MODEL(S):-VER# DESCRIPTION OF CHANGE
D
D
V
V
N
N
D
DD
V
VV
N
NN
K4M1238 DRILL HISTORY
UPDATED PER PC#7291, 7277, 7437.3.0013-FEB-2008
E CBTO-92
MPSA63
MPSA43MPSA13
2N5551
MPSA56
MPSA06
2N540112
9
6
3
#
13
1110
54
87
21
DATEMODEL(S):-
VER# DESCRIPTION OF CHANGE
D
.
.
V
.
.
N
PC#7437,REDUCE HUM,ISOLATE AC SECTION.
PC#7281,CHANGE W3,W6,W8 & W9 TO NORMAL EYELET
D
D
.
.
.
08-FEB-200708-MAR-2007
V
V
.
.
.
1.002.00
N
N
PC#7277,VALUE CHANGE PRIME CE F1 TO T3.15A #2475.PC#7291,REPLACE FAN EYELETS WITH MOLEX.
NODE N122 DELETED.FORCE UPDATED
REPLACE OPTOCOUPLERFIRST PROTO
M1238 DATABASE HISTORYK4
3.0013-FEB-2008
. . PC#7592, NEW #6787 & #6788 NEED NO THERMO PAD14-MAY-2010 V04 PC8097: replace routing, add XH connectors GG
4
2
-V
A
5
7
3
1
B
+V
6
8
16 14 12 10
1 3 5 7
V-
91315 11
2 4 6 8
11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
of
Filename:
PCB# Sheet 31
Product
Date: Rev: YsType:CSA#M1239V02sch.sch2002
M1239CH-1 INPUT-1Mon Jun 21, 2010 V1.01
K4of
Filename:
PCB# Sheet 31
Product
Date: Rev: YsType:CSA#M1239V02sch.sch2002
M1239CH-1 INPUT-1Mon Jun 21, 2010 V1.01
K4
4148D8
R73
1/4W 51K
.
R72
1/4W 51K
.
4148D13
R74
1/4W 1M
.
4148
D1 W3RED
1/4W 1M
R31
.
1/4W 33K
R19
.
1/4W4K99
R172
.R58
1/4W 20K0
MINI
3W24:C 4
1W24:A 4
3 4 W29:C
1 4 W29:A
IN FROM POWER BOARD
34W9:C
14W9:A
C47100V220P
R21/4W
.10K
3 4 W10:C
1 4 W10:A
C3100V220P
D64148
7 8 W23:G
5 8 W23:E
2 8 W23:B
C186250V4N7
X136
C3650V680P
4148D5
C9563V330N
C9363V 4U7
C9763V470N
R1281/4W
.3K
C9263V 4U7
C96100V10N
R2401/4W
MINI1K
C8963V 4U7
4W24:D 4
2W24:B 4
2 4 W29:B
4 4 W29:D
R66
1/4W 100K
.
C49160V
10U
R67
1/4W 17K8
.
R68
1/4W 14K0
.
C4663V 10U
R64
1/4W 20K
.
C167275V22N
R3001.0W
.1K8
W4GRN
CHANNEL-1 INPUT -1
24W9:B
44W9:D
D
05C R/A
P4:A
4482
20K
OVERDRIVE
R70
1/4W 1K5
.
Q35108
TO92
2N5401
R651/4W
.4K99
C4563V 330N
R41/4W
.10K
R31/4W
.10K
R11/4W
.10K
2 4 W10:B
4 4 W10:D
1/4W4K99
R113
.
D144148
R1711/4W
.3K
R601/4W
.220R
R81/4W
MINI20K0
R71/4W
MINI20K0
W2
BLK
R53
1/4W 2K21
.
C3350V
22U
R46
1/4W 113K
.
8V
+4
V-
U13:C
4148D114148
D12
C196100V220P
R1221/4W
MINI10K0
R1991/4W
.1K
R322
1/4W 10K
.
4148
D2
3 8 W23:C
1 8 W23:A
6 8 W23:F
4 8 W23:D
8 8 W23:H
W1WHT
C3563V220N
R471/4W
.49K9
C12763V 10U
C197100V220P
U25:B
NE5532N
R3041/4W
MINI10K0
R171/4W
.100K
R541/4W
.10K
R501/4W
.3K3
R481/4W
.3K3
R441/4W
.4K7
1/4W 1M
R25
.
C4163V
470N
C3950V33N
R511/4W
.3K3
R491/4W
.3K3
R561/4W
.100K
R451/4W
.4K7
1/4W 100K
R29
.
I/P SELECTOR
S1:A3425
4148
D7
U6:A
MC33078P
8V
+4
V-
U6:C
1/4W 1K
R21
MINILD1
RED 6405
R1351/4W
.10K
C8663V470N
R121
1/4W 2K2
.
R1111/4W
.3K
C82100V39N
R1101/4W
.3K
R129
1/4W 10K
.
U2:A
MC33079P11
V-
4
V+
U2:E
C84400V1N
R1151/4W
.2K
R1141/4W
.10K
R1381/4W
.2K
C102250V
4N7
R1371/4W
.2K
C101400V1N
R1231/4W
.10K
C8763V 2U2
D16
4007
D17
4007
R170
1/4W 1K5
.
R2581/4W
MINI1K
C100100V100N
C99200V2N2R1311/4W
.2K
R132
1/4W 5K1
.
R1241/4W
.10K
R175
1/4W 100K
.
Q65102
TO92
BC560C
R2411/4W
MINI2K
C9163V 4U7
R167
1/4W 100K
.
LIVE
R166
1/4W 100K
.
3425
S4:B
LEAD
R169
1/4W 100K
MINI
R239
1/4W 100K
.
C4863V1U
8V
+4
V-
U12:C
R611/4W
.220R
R71
1/4W 20K0
MINI
C50160V
10U
R691/4W
.1K
R2961/4W
.2K
100VC1
220P
100VC2
220P
8V
+4
V-
U25:C
R631/4W
.10K
C53100V22N
6
14
7
13
8N
P
U7:B
MC14007
4
V+
11
V-
U1:E
V1:A
2X_TRIODE_HCT
Val
R1301/4W
MINI4K99
R361/4W
.1K
R52
1/4W 33K
.
R1331/4W
.1K
50VC23
22U
160VC15
10U
1/4W113K
R23
.
R571/4W
.2K
R319
1/4W 220R
.
R1641/4W
.1M
4477
P1:AD
B LIN100K
GAINR1121/4W
.3K
C83100V
100NC85
250V
4N7
R1181/4W
.2K
U2:C
MC33079P
TO92
MPSA06
Q75103
D151N5225B
0W53V0
R177
1/4W 100K
.
R120
1/4W 20K
.
U3:B
MC33079P
C9063V 4U7
R168
1/4W 100K
.
S3:A3393
3 4 W25:C78W22:G
48W22:D
58W22:E
RIBBON CABLE 28W22:B
RIBBON CABLE
R2021/2W
.18R
C200100V220P
PIANO
4 4 W25:D
1 4 W25:A
2 4 W25:B
38W22:C
18W22:A
68W22:F
88W22:H
V1:C
100VC51
100N
C32100V22N
C52160V 10U
Q25107
TO92
2N5551
R2981/4W
.4K99
U13:A
MC33078PR2011/4W
.4K99
1112
9
10
P N
U7:CMC14007
C12663V4U7
C4463V 330N
1/4W10K0
R62
.
R1981/4W
.1K
C4100V220P
R351/4W
.3K
1/4W.
1K
R321
R55
1/4W 10K
.
C3750V680P
C5463V470N
4478P3:A
D50K
B LIN
TREBLE
C3450V
33N
R313
1/4W 20K
.
4478P2:A
D50K
B LIN
MID
C2163V 2U2
C1050V33N
C20463V4U7
D
4478P5:A50K
B LIN
BASS
50VC19
680P
C1750V22N 100V22N
C124
V1:B
2X_TRIODE_HCT
Val
C950V100N
Q15106TO92
MPSA63
R271/4W
.10K0
R1781/4W
.4M7
R1761/4W
.100K
R174
1/4W 1K8
.
Copper Tie-net Name
Tie Here
R1341/4W
.10K
R1251/4W
.10K
R117
1/4W 10K
.
C9463V330N
C98100V470P
R1271/4W
.20K
C8863V150N
R1191/4W
.2K
U2:B
MC33079P
LEAD3425
S4:A
BYPASS
STUDIO
R165
1/4W 100K
.
ORGAN
M
4032P13:A 10K
LIN
LEAD-GAIN
1/4W100K
R209
.
1/4W20K0
R6
MINI
1/4W20K0
R5
MINI
U1:A
MC33079P
2 1 5 4
3
NPU7:A
MC14007
U1:D
MC33079P
U12:B
NE5532N
U25:A
NE5532N
U5:B
MC33078P
C3863V
1U
U1:C
MC33079PR591/4W
.1K
R761/4W
.100R R75
1/4W
.10K
C3150V33N
100VC40
100P
1/4W 2K21
R33
.
R314
1/4W 1K
.
LD2
GRN 6408
C128250V
4N7
U16:A
NE5532N
8V
+4
V-
U16:C
R1261/4W
.10K
U2:D
MC33079P
U3:C
MC33079P
U3:A
MC33079P
4V
+11
V-
U3:E
ST R J10
- - -
FOOT/SW
U3:D
MC33079P
U22:B
NE5532N
REF KNOBPART#MODEL(S):-
FUNCTION
XC141
RR
P13RR
P10,P11P12P4
P1P2,P3,P5,P7,P8,P9.
S3
FF
LEAD-GAINFF
CH-2 &CH-3 GAINMASTEROVERDRIVE
CH-1 GAINBASS,MID,TREBLE
5POS-2S SWITCH
KK
9922KK
839983999922
83998399
8400
PP
4032PP
447944804482
44774478
3393
POT LIST
NN
NNN
NNN
NNN
{NEW}N
K4
U1:B
MC33079P
U12:A
NE5532N
S TRJ1
---
CH-1 I/P -1 LEFT
S TRJ2
---CH-1 I/P -1 RIGHT
13
10
7
4
1
9
1112
8
#
23
56
VER#MODEL(S):-
DATE DESCRIPTION OF CHANGE
V
V
V
V02
1V00
VV
VV
VV
V1V01
D
D
D
18-JUN-2010
MAY-10-2005
N
N
N
Force update parts, replace ribbons with XH conn GG
FIRST LAUNCH
K4
DD
DD
DD
DFEB-07-2008
NN
NN
NN
NPC#7464, REPLACE R248 & R249 FROM 1K TO 2K #4808
M1239.PCB_DATABASE_HISTORY
11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
of
Filename:
PCB# Sheet 32
Product
Date: Rev: YsType:CSA#M1239V02sch.sch2002
M1239CH-1 INPUT-2Mon Jun 21, 2010 V1.01
K4of
Filename:
PCB# Sheet 32
Product
Date: Rev: YsType:CSA#M1239V02sch.sch2002
M1239CH-1 INPUT-2Mon Jun 21, 2010 V1.01
K4
4148D18
R78
1/4W 51K
.
R77
1/4W 51K
.
4148D19
R79
1/4W 1M
.
1/4W 113K
R24
.
1/4W 1M
R32
.
1/4W4K99
R179
.
R80
1/4W 20K0MINI
1/4W 100K
R30
.
C55100V220P
R91/4W
.10K
C5100V220P
D204148
C187250V4N7
X162
C5850V680P
C10363V330N
C10463V 4U7
C10563V470N
R1361/4W
.3K
C10663V 4U7
C107100V10N
R2421/4W
MINI1K
R2431/4W
MINI2K
PIANO
C10863V 4U7
R99
1/4W 100K
.
C59160V
10U
R81
1/4W 17K8
.
R100
1/4W 14K0
.
C6163V 10U
R82
1/4W 20K
.
CHANNEL-1 INPUT-2
D
05C R/A
P4:B
4482
20K
OVERDRIVE
Q45108
TO92
2N5401
R84
1/4W 1K5
.
R851/4W
.4K99
C6263V 330N
R111/4W
.10K
R101/4W
.10K
R121/4W
.10K
R2001/4W
.4K99
D224148
R1841/4W
.3K
R861/4W
.220R
R131/4W
MINI20K0
R141/4W
MINI20K0
1/4W100K
R208
.
V2:C
R87
1/4W 2K21
.
C6450V
22U
R88
1/4W 113K
.
U13:B
MC33078P
4148D23
D24
4148
C198100V220P
R1391/4W
MINI10K0
R328
1/4W 10K
.
4148
D4
4148
D3
C5663V220N
R891/4W
.49K9
C199100V220P
U27:B
NE5532N
R3021/4W
MINI10K0
R911/4W
.10K
R921/4W
.3K3
R931/4W
.3K3
R941/4W
.4K7
1/4W 1M
R26
.
50VC74
22U
50VC20
680P
R281/4W
.10K0
C6763V
470N
C5750V33N
R951/4W
.3K3
R961/4W
.3K3
R971/4W
.100K
R981/4W
.4K7
1/4W 2K21
R34
.
U6:B
MC33078P
R1401/4W
.10K
C10963V470N
R141
1/4W 2K2
.
R1421/4W
.3K
C110100V39N
R1431/4W
.3K
R144
1/4W 10K
.
U9:A
MC33079P11
V-
4
V+
U9:E
C111400V1N
R1451/4W
.2K
R1461/4W
.10K
R1471/4W
.2K
C112250V
4N7
C113400V1N
R1481/4W
.2K
R1491/4W
.10K
C11463V 2U2
C116200V2N2R1501/4W
.2K
R151
1/4W 5K1
.C115
100V100N
R1521/4W
.10K
C11763V 4U7
LIVE
R180
1/4W 100K
.
STUDIO
R181
1/4W 100K
.
R182
1/4W 100K
MINI
R238
1/4W 100K
.
C6063V1U
8V
+4
V-
U26:C
R1011/4W
.220R
R102
1/4W 20K0
MINI
160VC66
10U
R831/4W
.1K
R2971/4W
.2K
100VC6
220P
100VC7
220P
8V
+4
V-
U27:C
R1031/4W
.10K
C63100V22N
4
V+
11
V-
U8:E
V2:AVal
2X_TRIODE_HCT
R371/4W
.1K
R1531/4W
MINI4K99
R90
1/4W 33K
.
8V
+4
V-
U22:C
R1541/4W
.1K
160VC16
10U
R1051/4W
.2K
R3201/
4W 220R.
R1861/4W
.1M
4477
P1:BD
B LIN100K
GAINR1551/4W
.3K
C118100V
100NC119
250V
4N7
R1561/4W
.2K
U9:C
MC33079P
B CTO-92
MPSA63
E
MPSA06
R157
1/4W 20K
.
U10:B
MC33079P
C12063V 4U7
R183
1/4W 100K
.
3393
S3:B
1/4W.
1K
R325
100V22NC125
MC33078 NE5532N
C201100V220P
BYPASS
6
14
13
8
7N
P
U14:B
MC14007
R2031/2W
.18R
100VC69
100N
C68100V22N
C70160V 10U
Q5
TO92
2N5551
5107
C12963V 10U
1/4W4K99
R116
.
R2991/4W
.4K99
1112
9
10
P N
MC14007U14:C
C13063V4U7
C7163V 330N
1/4W10K0
R106
.
C8100V220P
R381/4W
.3K
R107
1/4W 10K
.
C6563V470N C72
50V680P
4478P3:B
D50K
B LIN
TREBLE
C7350V
33NR311
1/4W 20K
.
P2:BD
50KB LIN
MID
4478
C2450V33N
C2263V 2U2
C20563V4U7
DP5:B50K
B LIN
BASS
4478
C1850V22N
I/P SELECTOR
S1:B
R2591/4W
MINI1K
R1581/4W
.10K
R1591/4W
.10K
R160
1/4W 10K
.
C12163V330N
C122100V470P
R1611/4W
.20K
C12363V150N
R1621/4W
.2K
U9:B
MC33079P
MC33079
ORGAN
R185
1/4W 100K
.
M
4032P13:B 10K
LIN
LEAD-GAIN
1/4W20K0
R15
MINI
1/4W20K0
R16
MINI
U8:A
MC33079P
2 1 5 4
3
NP
MC14007
U14:A
U8:D
MC33079P
U26:B
NE5532N
U27:A
NE5532N
8V
+4
V-
U5:C
C7663V
1UR1091/4W
.1K
U8:C
MC33079P
R1041/4W
.100R R163
1/4W
.10K
C7750V33N
100V
100PC131
R312
1/4W 1K
.
V2:BVal
2X_TRIODE_HCT
U16:B
NE5532N
R1881/4W
.10K
U9:D
MC33079P
U10:A
MC33079P
U10:C
MC33079P
4V
+11
V-
U10:E
U10:D
MC33079P
U22:A
NE5532N
U8:B
MC33079P
U26:A
NE5532N
S TRJ3
---
CH-1 I/P-2 LEFT
S TRJ4
---CH-1 I/P-2 RIGHT
U5:A
MC33078P
11 11
10 10
9 9
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
J
J
K
K
L
L
M
M
N
N
O
O
P
P
Q
Q
of
Filename:
PCB# Sheet 33
Product
Date: Rev: YsType:CSA#M1239V02sch.sch2002
M1239CH- 2 & 3Mon Jun 21, 2010 V1.01
K4of
Filename:
PCB# Sheet 33
Product
Date: Rev: YsType:CSA#M1239V02sch.sch2002
M1239CH- 2 & 3Mon Jun 21, 2010 V1.01
K4
W16
4148
D21
4148
D25
CHANNEL-3
CHANNEL-2
R401/4W
.47K
R1951/4W
.820R
R1941/4W
.820R
R1971/4W
.4K99
R1911/4W
.4K99
56W11:E
36W11:C
16W11:A
C13516V10U
R2341/4W
.180K
C15550V100N
R2781/4W
.4K99
R2801/4W
.470R
R2881/4W
.10K0
R2661/4W
.270R
2 4 W19:B
C175100V
100NC174
100V
100N
R207
1/4W 4K7
.
R206
1/4W 4K7
.
R204
1/4W 4K7
.
C177100V
100N
C19550V
100N100V
C12100N
R391/4W
.47K
R2281/4W
MINI20K0
C185100V
100NC184
100V
100N
100VC26
100N
C43100V
100N
R2301/4W
.49K9
R421/4W
MINI20K0
R411/4W
MINI20K0
C134400V
1N
C132400V
1N
1/4W.
249R
R173
R221/4W
.249R
C191100V
100N
C81100V
100NC169
100V
100N
C3063V 10U
W14_W14
C2963V 10U
W16_
4148
D9
4148
D10
R1901/4W
.4K99
R1891/4W
.4K99
26W11:B
46W11:D
66W11:F
D
4479P11:B20K
05C R/A
CH3-GAIN
4148D29
R254
1/4W 68K
.
C13616V10U
1/4W.
10K
R316
1/4W.
1K
R318
1/4W.
5K1
R196
1/4W.
5K1
R187
C15463V 4U7
C15716V
100U
Q95106TO92
MPSA63
R2501/4W
.33K
R251
1/4W 68K
.
R2751/4W
MINI10K
R2741/4W
.10K
U21:A
MC33079P
4V
+11
V-
U21:E
R2351/4W
.180K
Q85106
MPSA63
TO92
R2771/4W
.10K
R2791/4W
.4K99
R2761/4W
.10K
R2221/4W
.3K3
R2201/4W
.3K3
R2181/4W
.4K7
R2521/4W
.1K
C16250V
12N
R2931/4W
.100R
R2811/4W
.470R
C16150V
12N
R2921/4W
.100R
C14750V680P
4478P9:B
D50K
B LIN
TREBLE
C14450V
33N
4478P8:B
D50K
B LIN
MID
C14350V33N
DP7:B50K
B LIN
BASS
4478
C13950V33N
4478P9:A
D50K
B LIN
TREBLE
R2171/4W
.100K
C13750V
33N
4478P8:A
D50K
B LIN
MID
C13850V33N
D
4478P7:A50K
B LIN
BASS
C16650V22U
R2911/4W
.10K0
C16450V22U
C16350V22U
R2901/4W
.10K0
R2891/4W
.10K0
3923
J14
RIGHT LINE OUT
R2371/4W
.2K
R2361/4W
.2K
R3071/4W
MINI270R
R2711/4W
.270R
R2641/4W
.270R
R2631/4W
.270R
4V
+11
V-
U19:E
R2701/4W
.270R
63VC160
4U7
3 4 W19:C
1 4 W19:A
4 4 W19:D
R205
1/4W 2K49
.
C171100V
100NC170
100V
100N
C19350V
100N100V
C11100N
C173100V
100N
R2261/4W
MINI20K0
R2311/4W
.49K9
100VC25
100NC42
100V
100N
8V
+4
V-
U15:C
C183100V
100NC182
100V
100N
C133400V
1N
C75400V
1N
C80100V
100NC168
100V
100N
C189100V
100N
8V
+4
V-
U24:C
4148
D28
C15816V
100U
R2461/4W
MINI180K
1/4W.
1K
R317
RED
LD4
6405
U23:A
MC33078P
8V
+4
V-
U23:C
U23:B
MC33078P
R2821/4W
0.1%681R0
C15163V 4U7
R2841/4W
0.1%681R0
C14550V33N
C14050V680P
R216
1/4W 20K0
MINI
R224
1/4W 20K0
MINI
C16550V22U
1/4W10R
R295
.
C142100V
100P
C148100V
100P
R294
1/4W 10R
.
S2:B
3923
J13LEFT LINE OUT
R2671/4W
.270R
R3061/4W
MINI270R
R2621/4W
.270R
R2651/4W
.270R
CopperTie Here
Tie-net Name
R1931/4W
.4K12
R1921/4W
.4K12
R2831/4W
0.1%681R0
5 6 W12:E
3 6 W12:C
1 6 W12:A
R2471/4W
MINI180K
4148
D26
4148D27
C176100V
100NC179
100V
100NC181
100V
100NC190
100V
100N
100VC207
100N
C19450V
100NC79
100V
100NC14
100V
100N
R2271/4W
MINI20K0
C28100V100P
U15:A
MC33078PR2451/4W
MINI1K0
U15:B
MC33078PR2441/4W
MINI1K0
R2531/4W
.33K
U24:B
MC33078P
R1081/4W
.562R
R201/4W
.3K74
U24:A
MC33078P
R431/4W
.562R
R181/4W
.3K74
U21:D
MC33079P
MC33079P
U21:C
2 6 W12:B
4 6 W12:D
6 6 W12:F
1/4W.
10K
R315
U4:B
MC33078PR2491/4W
.2K
C15363V 4U7
U4:A
MC33078P
C15263V 4U7
C15016V
100U
R2131/4W
.3K3
R2331/4W
.680R
D
4479P10:B20K
05C R/A
CH-2 GAIN
C14916V
100U
R2121/4W
.3K3
R2321/4W
.680R
D
4479P10:A20K
05C R/A
CH-2 GAIN
R2101/4W
.4K7
RED
LD3
6405
R2861/4W
0.1%681R0
R2851/4W
0.1%681R0
R301
1/4W 2K2
.
LD5POWER
6554BLU
C203100V220P
R2691/4W
MINI1K0
C14650V680P
R2231/4W
.3K3 C202
100V220P
R2681/4W
MINI1K0
R2211/4W
.3K3
R2191/4W
.4K7
R2151/4W
.3K3
C14150V680P
R2141/4W
.3K3
4V
+11
V-
U20:E
U20:A
MC33079P
R2111/4W
.4K7
D
1B LIN
P12:B
4480
10K
MASTER
D
1B LIN
P12:A
4480
10K
MASTER
S TRJ11
---
RIGHT
R
L
J6
GOLD .475
3460
R2291/4W
MINI20K0
C19250V
100N C78100V
100NC13
100V
100N
C172100V
100NC180
100V
100NC178
100V
100NC188
100V
100N
100VC206
100N
C27100V100P
S TRJ9
---
LEFT
MC33079P
U21:B
8V
+4
V-
U4:C
R2481/4W
.2K
C15650V100N
R2551/4W
.1K
U18:B
NE5532N
U18:A
NE5532N
8V
+4
V-
U18:C
R2871/4W
0.1%681R0
S2:A
GROUND LIFT3425
R2251/4W
.100K
U20:B
MC33079P
63VC159
4U7
FLAT CABLE
U19:C
MC33079PD
4479P11:A20K
05C R/A
CH3-GAIN
U19:A
MC33079P
J8:A
3922MIC
U20:D
MC33079P
U19:B
MC33079P
U20:C
MC33079P
U19:D
MC33079P
S TRJ5
---
I/P LEFT MONO
S TRJ7
---
I/P RIGHT
ST R J12
- - -
HEADPHONE
VCDCLINCH
ORIGIN LONG AXIS
SH
OR
T A
XIS
INSERT
ORIGIN
V02M1239
Pcb Mech V02
Pcb Mech
M1239
BlankSize - 19100x10400Top Assy M1239
Top Assy V02
Layers for wires
V02
M1239
SEE LAYOUT DOCUMENTATION
1 4
61
16
-
+
TIP
RING
SLEEVE
TIP-SW
SL-SW
RING-SW
7
14
1 4
81
1 4
GND
WHT RED
21
21
2
1 4
14
TIP
RING
SLEEVE
TIP-SW
SL-SW
RING-SW
7
TIP
RING
SLEEVE
TIP-SW
SL-SW
RING-SW
7
TIP
RING
SLEEVE
TIP-SW
SL-SW
RING-SW
7
TIP
RING
SLEEVE
TIP-SW
SL-SW
RING-SW
7
TIP
RING
SLEEVE
TIP-SW
SL-SW
RING-SW
7
TIP
RING
SLEEVE
TIP-SW
SL-SW
RING-SW
7
TIP
RING
SLEEVE
TIP-SW
SL-SW
RING-SW
7
81
POWER
I/P SELECTOR
MASTER
CH-1 I/P -1 LEFT
OVERDRIVE
FOO
T/SWH
EADPH
ON
E
GR
OU
ND
LIFT
RIG
HT LIN
E OU
TLEFT LIN
E OU
T
CH1-GAIN BASS TREBLE
LEAD
MIC
BASS TREBLEMID CH3-GAIN
LEAD-GAIN
CH-1 I/P -1 RIGHT CH-1 I/P-2 LEFT CH-1 I/P-2 RIGHT I/P LEFT MONO I/P RIGHT RIGHTLEFT
MID CH2-GAIN
3489
5629
2337
6554
3602
2327
5629
5629
6435
2327
5629
34256405 6405
4480
6405
3918
4482
3489
5629
3498
2337 3498
2337
2328
2337
3460
3489
5629
5629
5629
37323732
3425
39233923
4477 4478
3393
4478
64083425
3922
2337
4478
44784478
4479
2337
4032
3918 3918 3918 3918 3918 39183918
2328
4478
4479
1M22N
17K8
113K
51K
100K22N
1K551K
2K
2K2
22N
1M51K
20K
100K113K
22N33N
1N
49K9
20K0680P
470P
10K
10K 10K
20K0
1K
100N
4148 4148
1N
220P 4U763V
20K0 4148
20K0
220P 100R100K
330N
4K991K
2K
470N1K1K
1N4N
7100N
220P
1K810K
100K2K2
100K100N
2K
100N100K
3K
1N
220P 220P
470N
10N
4M7
3K3
3K74
4K99
4K994K99
100P
4148
4K99820R
270R
820R1N
10K
220R
681R
0
4148681R
0
220P3K
41484K99
1K270R
10K
100N
1K270R
12N
41484148
10K
1/2W18R
2K2114K0
680P
2K213K
3K
10K010K
100K
150N
20K0
14K010K
20K0
3K4K7
10K
3K10K
1K
20K01K
5K1
220P3K
3K3
10K
33N
3K310K
1K220P
20K0
1K3K3 3K3
220R3K3
2K
10K680P
680P
2K680P
33K100K
10K100K
100K
220P
220P
33N100K
2K10K
10K
5K1
10K1K
470N
220R2K
100R10K
10K
2K
1K10K
4007
2K
10K0180K
2K
20K33N
4K7
220R
1K
10K
10K4K7
100N4K99
3K3
100K
100K33N
4K733N
41484148
4K7
4K7
680P
2K3K3
3K3
680P
220P562R
3K3100P
4K12
180K
4148
270R
4148
68K
47K270R
2K
220P270R
270R
49K9
1K20K0
10K
470R
20K0
4K9920K0
681R0
10K
20K0
100P4148
20K01K0
1K
41484148
681R0
10R
10K0
220N
100N
100N
1K
4N7
100N
100N
100N
100N
100N
681R0
100K
1U
20K0160V10U
2N5551
49K9
113K
1M
10R
50V22U
17K810K
113K
1M220N
50V22U
22N
4U763V
4U763V
100N
4N7
39N
2U263V
1K5
2N5551
2N5401
33K
51K
1U
1M
33N
100N
10N
100K
220P MC
33079P
330N
4U763V
470N
1K
10U63V
33N
100N
2N2
4N7
100N
100N100NM
C33079P
220P
100N
100N
100K10K
10K
470N
4148
2K
100K
100N
4U7
63V
2N2
4007
4K99
4U7
63V
100K3K
2K
4K99
220R
3V0
20K
100N
4U763V
39N2U263V
1K
4K7
330N
10U16V
10U16V
33N
100N
4U763V
4U763V
4U7
63V
470P100N
4148
100K3K3
100K
4K99
4K99
4K991N
100N
4148 100N
1N33K
16V100U
100N
100N
330N
10K0
10U63V
16V100U
1K0
1K0
100N
4U763V
4U763V
4U763V
100N
330N
100N
20K
100K
100N
100N
10U63V
12N 5K1100N
10K04K7 100N
4148
68K
MPSA63
BLU
10K10K
470R100R
2K21
22N
50V22U
1K81.0W
160V
10U
160V10U
275V22N
50V22U
50V22U
1M1U 1U
50V22U
1/2W18R
100K
2K
2K
4K7
2K21 50V22U
10U160V
DPDT PUSH
20K
MC
33079P4K7
4K7
33N
10K
10K
20K0
10K0220P
63V2U2
2K
10K 470N
33N
100K
10K33N
10K0
2K
3K310K
MC
33079P680P 3K3
3K
20K0
20K0
10K
100P
100P
3K3
MC
33078P
1K
470N
RED
3K2K
10K1K
1K5180K
16V100U
2K
4U763V
330N
10K
20K
10U63V
10K
4N7 150N
MC
33078P
16V100U
3K
4U763V
4148
4148
NE5532N
3K
10K330N
33N
20K0
3K3
4N7
4148
100N
2K49
10K0
MC
14007
2K
33N
680P
100K
4K99
MC
33078P4K12
4K99
562R
MC
33078P
220P4K99
RED
MPSA63
3K3
270R
4U763V
680P
MC
33079P
2K
1K
47K
20K 4K99
270R
270R
180KM
C33079P
100P 49K9
220R
MC
33078P
4148
1K0
100R
220P
1K
1B LIN
10K
4148
33K
20K0
RED
4K99
2K2
220P
681R0
5K1
20K 05C R/A
10K0
1M
10K0
4N7
100N
1K
100N
249R680R
100N
160V10U
2N5401
33K
10K
1M
22N
4U763V
4U763V
470N10K0
50V22U
10K0
100N
MC
33078P
100N
100N
4148 NE5532N100K
MPSA63
63V10U
100N
100N
4U7
63V
NE5532N 100K
680R 3K74 249R
100N
4U7
63V
NE5532N
NE5532N
10U63V
100N
100N
22N
2U2
63V
10U160V
160V10U
160V10U
330N
DPDT PUSH
100K
B LIN
50K
B LIN
10K
4148
MC
33079PN
E5532N
5POS 2S
50K
B LIN
1N
100N
GRN
DPDT PUSH
BC560C
MPSA06
20K
MC
33079P
20K0
50K
B LIN
50K
B LIN
50K
B LIN
NE5532N
MC
14007M
C33079P
MC
33078P
20K
05C R/A
LIN10K
50K
B LIN
20K
05C R/A
-15VSG
V02
+15V
15VT
+15V
SG
V02
-15V
V02
CHASSISGND
AG1
R32
C125
R81
R24
R78
R99
C63
R84
R77
R118
R121
C124
R31
R73
R120
R66
R46
C53
C24
X74C
84
R47
R71
C19
X185C
98
R55
X73
X193R
328X75
R322
R7
R36
C100
X189
D2
D1
X191
C101
C200
X169
C93
X28R
14X158
X167
D4
X30
R13
C8
X65
X24
R104
X92R
169
C103
R116
R240
X42
X31R
296
C54
R69
R83
C113
X71C
112
C189
X96X95
C201
X204R
174X76
R188
R175
R141
R183
C118
X178
R156
X176X179
C182
R185
R142
X68
C111
X83C
47X61
C197
C109
X85
C107
R178 X77
X173
X163
R220
X175
X118X100
X99R
20
R190
X138X49
R201
R189
C148
X40D
25
R299
R195
R264
X206
X140R
194
C133
X47X48
X137
X202
R103
R101
X44X172
R285
D23
R287
C199
R184
D24
X46
R278
X82
R312
X98R
306R
276X80
C156
R255
R307
C162
D9
D28
R275
R203
X63
R34
X4R
68
C20
X8
R53
X9R
111R
110
X69
R27
X5R
114
R165
C88
R58
R100
R117
R80
X12R
112R
44R
124
X14X13
R35
R1
R199
R5
R325
R132
X151X152
C2
R128
R96
X136
R4
C77
R93
R129
R59
C4
R8
R321
R49 R
48
R319
X122R
51
X144X123
R138
R134
C37
C72
X125X124
R137
C58
R19
X27X66 X67
R168
R12
R97
R56
C6
C7
X60X59
X142C
57X57
R180
R105
R11
X126R
159
R151
R163
R21
C105
R320
X54R
241
X32
R76
R75
R158
X119X116
R147
R259
R140
D16
R145
R62
X130R
235X180
X33
X29
R162
X84
R313
C143
R218
R60
R314
R149
R160
R210
X188C
192R
172R
214
R217
R177
C144
R204
X21C
145
D8
D6
R219
R211
C141
X34
X106R
237R
223
R215
X117C
147X171
X79
C196
R108
R213
C142
X108R
193
R246
D27
X107
R270
D26
X35R
251X109
R39
X110R
266R
249
C55
X111R
265
R267
R230
R154
R42
R274
R280
R229
R179
R227
R282
R315
R226
C27
D20
X97R
41R
269R
318
D22
D19
R284
R295
R288
C35
X2
C190
X50
C11
X18X19
X16
X183X156
R37
X72
C187
C185
W18
C69
C51
X132
X161
X41
X141
C80
C171
R286
R30
W1WHT
W2BLK
C60
R102
C66
Q5
R89
R88
R79
R294
C165
X11
R67
R107
X10R
23
R74
C56
C74
C18
C204 C205
BECLOC
C83
C85
C82
C87
R70
X64
Q2 Q3
R52
R72
C38
R25
C10
C172 C96
R166
X36
C3
U1
C95
C91
X190
X39
C41
R198
C129
C31
C176
C99
X157
C102
C188
C42
C43
X120
U8
C5
X20
C181
C180R
239R
126
X159
R91
C65
D3
R297
X93R
182
C115C117
C116
X70
X184D
17
R113
C106
R238
R143
R148
R65
R61
D15
W24
R157
C184
C108X177
C110
C114
R133 R
206
C44
C136C135
C137
C178C151C152
C120
X62C
122C
191
D14
R209
R212
X186
R225
R200
R298
R191
C134
C81
D21
C155
C132
R250
C157
X187
X45
X78
C175
X148
C169
X22 X139
C62R106 C61
C158
R244
R245
C206C159
C154
C160
X43
C174
X208
X146
C71
C194
R311
R208
C13
C193
X101
C30
C161
R187
C170
R139
R207
C14
D29
R254
Q9
LD5
R277
R316
R281
R293
W3
120VDC
RED
W4
GRN
W12
M1239 3/3
K4
R87
C68C64
R300
C16
C59
C167
C164
C163
R26
C76C48
C33
X23R
202R
29
R119
R115
R98
W11
R33
C23
C52
S1
X52
R127
U2
R45
R94
C34
R123
R2 R6
R302
C1
C22
R131
R125
C97
X201
X153
C73
R167
R3
X182
C39
R304
R57
X51
R92
R135
U3
C36
R95
R38
R15
R16
X1
R9
X7X25
C131
C40
R50
X58
U6
X162
R109
C67
X127
X129
LD1
R136
R150
X56
R144
R258
X121
X115
R170
R234
C149
R243
C104
C45
R63
R64
C46
R146
C119
C123
U23 C150
R171
C126
D12
X131
D11
U12X53
R155
R152C
121
C138
R224
R221
X164
C128
D13
C195
R205
R122
U7
R236
C139
C146
R181
R197
U13
R192
R130
X165R
43
U24
C198
R153
Q8
R222
R263
C153
C140
U20 R248
R252
R40
R82X166
R85
W14
RED
R271
R262
R247
U19
C28
R231
R86
U15
D10
R268
R292
C202
R317
P12
D18
R253
R228
LD4
W16YEL
R279
R301
C203
R283
R196
J1
-
-
-P4
R28
R164
X3
R289
X102X174
C186
C9
R242
X155
X154
C25
R22R233
X113
X145
X150X55
X38W14_RED
C173
X15
C50
Q4
R90 R54
R186
C17
X6
J10
- - -
W19
J12
- - -
C90C89
C86R290
W29C166
R291
C12U5
X26
X17
C79
C78
D5 U22
R17
Q1
W22
C127
C183
W25
C179C92
K4M1239 1/3
U25
R176
R232 R18
X112
R173
X149
C168
C130
X105U26
L R
J6
U18
C29
W16_YEL
X37
C207
C177
C32C21
C70
C49
C15
V1V2
C94
S2
J14
J13
P1 P5
R10
D7
U10
U16
S3
P3
C75
C26
X114LD2
S4
Q6
Q7
J8
W9
R161
U9
R216
P7 P9P8
U27
U14
U21
U4
K4M1239 2/3
P11
W10
P13
J2
-
-
-
J3
-
-
-
J4
-
-
-
J5
-
-
-
J7
-
-
-
J11
-
-
-
J9
-
-
-
W23
P2 P10
SEE LAYOUT DIAGRAM
M1239 PRODUCTION NOTES1- CUT METAL PIN OF J8 , J13 AND J14 XLR
2- RTV ALL CAPACITORS
3- C167, B.A. WILL PUT A 220N #5600 INSTEAD OF 22N
Break thisconnection here.
NE5532N MC33078P MC33079
SEE LAYOUT DIAGRAM
PIN CONFIGURATION
E CBTO-92
MPSA63MPSA06
4
1
65
3
#
2
MODEL(S):-PC#
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
PENDING CHANGE
X
X
XX
XX
PC
PC
PCPC
PCPC
M1239 PENDING CHANGESK4
5
2
#
6
34
1DATE
MODEL(S):-VER# DESCRIPTION OF CHANGE
D
D
V
V
N
N
D
DD
D
V
VV
V
N
NN
N
K4M1239 DRILL HISTORY
12
9
6
3
#
13
1110
54
87
21
DATEMODEL(S):-
VER# DESCRIPTION OF CHANGE
DDD V
VVVV
DD
NNNNN
DDD V
VV
K4
VD NNNN
M1239.PCB_DATABASE_HISTORY
MAY-10-2005 FIRST LAUNCH1V00FEB-07-2008 1V01. . PC#7217, REPLACE C167 22N #6435 WITH 220N #5600
PC#7464, REPLACE R248 & R249 FROM 1K TO 2K #4808
18-JUN-2010 V02 Force update parts, replace ribbons with XH conn GG
FUNCTION KNOBREFMODEL(S):-
PART#
RRR
P4P13R
P7,P8,P9.P10,P11P12
S3P1P2,P3,P5,
FFF
OVERDRIVELEAD-GAINF
CH-2 &CH-3 GAINMASTER
5POS-2S SWITCHCH-1 GAINBASS,MID,TREBLE
PPP
44824032P
44794480
339344774478
NNN
NNN
NNN
NNN
KKK
99229922K
83998399
840083998399
{NEW}
POT LISTK4
2G
2K
1 9
1K
1G4
H6
2
3
H
8
7
2P
5
HT
1P
