Download SERVICE MANUAL TRAYNOR YCS50H
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SERVICE MANUAL MODEL TYPE: YS1064 TRAYNOR YCS50H WEB ACCESS: http://www.yorkville.com WORLD HEADQUARTERS CANADA U.S.A. Yorkville Sound Yorkville Sound Inc. 550 Granite Court Pickering, Ontario L1W-3Y8 CANADA 4625 Witmer Industrial Estate Niagara Falls, New York 14305 USA Voice: (905) 837-8481 Fax: (905) 837-8746 Voice: (716) 297-2920 Fax: (716) 297-3689 Quality and Innovation Since 1963 Printed in Canada Manual-Service-YCS50H-00-1v3.pdf IMPORTANT SAFETY INSTRUCTIONS 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. 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 accompagnant l’appareil en ce qui concerne l’opération et la maintenance de cet appareil. 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. S2125A FOLLOW ALL INSTRUCTIONS Instructions pertaining to a risk of fire, electric shock, or injury to a person SUIVEZ TOUTES LES INSTRUCTIONS Instructions relatives au risque de feu, choc électrique, ou blessures aux personnes CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). AVIS: AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE, N’ENLEVEZ PAS LE COUVERT (OU LE PANNEAU ARRIERE) NE CONTIENT AUCUNE PIECE NO USER SERVICEABLE PARTS INSIDE. REPARABLE PAR L’UTILISATEUR. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. CONSULTEZ UN TECHNICIEN QUALIFIE POUR L’ENTRETIENT 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. 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. 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! 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! Warning: When using electric products, basic precautions should always be followed, including the following: Attention: Lors de l’utilisation de produits électrique, assurez-vous d’adhérer à des précautions de bases incluant celle qui suivent: Power Sources Your 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. Precautions 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. Hazards Do 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 Cord Do 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. Service The 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. Alimentation L’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. Risque Ne 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’Alimentation Ne 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. Assurezvous 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. Service Consultez 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. safety-4v7 • May 7/2008 YCS50H Parts List 5/4/2010 YS # 5906 5907 5908 6397 6398 6399 6438 6825 6888 6437 6450 6461 6871 6872 5101 5102 5103 5104 5108 5119 5122 6882 5197 5199 5277 5408 5194 5201 5206 5208 5275 5422 5816 5204 5209 5222 5223 5224 5272 5834 5841 6451 5212 5226 5229 5233 5865 5882 5254 5257 5266 5282 5629 5631 5958 5959 5961 5267 5618 5879 6574 5635 4417 4423 4424 4425 4520 3976 6563 8522 8570 3467 3478 3489 3601 3450 3498 3921 3888 3890 Description RED 3MM LED 1V9 20MA.4SPCER T&R YEL 3MM LED 1V9 20MA.4SPCER T&R GRN 3MM LED 1V9 20MA.4SPCER T&R JEWELED PILOT LAMP AMBER REG V1 RED 5MM LED 1V5 20MA HIGH EFF YEL 5MM LED 1V5 20MA HIGH EFF 1N4007 1000V 1A0 DIODE T&R 1N4148 75V 0A45 DIODE T&R HER508 1000V 3A0 DIODE ULTRAFAS 1N5237B 8V2 0W5 ZENER 5% T&R 1N5242B 12V0 0W5 ZENER 5% T&R 1N5240BRL 10V0 0W5 ZENER 5% T&R MC7915CT TO220 N 15V0 REG V2 MC7815CT TO220 P 15V0 REG V1 BC550C TO92 NPN TRAN T&R TB BC560C TO92 PNP TRAN T&R TB MPSA06 TO92 NPN TRAN T&R TA MPSA56 TO92 PNP TRAN T&R TA 2N5401 TO92 PNP TRAN T&R TA 2N5638 TO92 NCH JFET T&R TC J109 TO92 NCH JFET T&R TC TL072CP IC FET DUAL OP AMP 220P 100V 2%CAP T&R RAD CER.2NPO 100P 100V 2%CAP T&R RAD CER.2NPO 220P 200V 5%CAP T&R RAD CER.2NPO _47P 100V 10%CAP T&R BEAD NPO 470P 1000V 10%CAP T&R RAD CER.2Y5P 470P 100V 5%CAP T&R RAD CER.2NPO __1N 400V 5%CAP T&R RAD .2FLM __2N2 400V 5%CAP T&R RAD .2FLM __3N3 100V 5%CAP T&R RAD .2FLM __1N 50V 10%CAP T&R BEAD NPO 680P 100V 5%CAP T&R RAD CER.2NPO _10N 100V 10%CAP T&R RAD .2FLM __4N7 250V 5%CAP T&R RAD .2FLM _33N 100V 10%CAP T&R RAD .2FLM _39N 100V 10%CAP T&R RAD .2FLM _47N 100V 10%CAP T&R RAD .2FLM __6N8 100V 5%CAP T&R RAD .2FLM _10N 250V 20%CAP BLK RAD POLY FLM _47N 250V 10%CAP RAD POLYFILM BULK __4N7 250V 20%CAP BLK 'Y' 10MM AC 100N 63V 5%CAP T&R RAD .2FLM _68N 100V 5%CAP T&R RAD .2FLM 150N 63V 10%CAP T&R RAD .2FLM 330N 63V 5%CAP T&R RAD .2FLM 100N 250V 10%CAP BLK RAD POLY FLM 220N 250VDC 10%CAP BLK RAD PLY FLM __1U 63V 20%CAP T&R 4X7MM .2EL __2U2 63V 20%CAP T&R RAD .2EL 680N 250V 20%CAP BLK 'X2' 30MM AC _10U 16V 20%CAP T&R 5X7MM .2NP _10U 160V 20%CAP BLK 10X13MM EL _22U 50V 20%CAP T&R 6X7MM .2EL _22U 350V 20%CAP BLK 13X25 EL _10U 450V 20%CAP BLK EL _33U 16V 20%CAP T&R RAD .2 100U 25V 20%CAP T&R RAD .2EL 470U 25V 20%CAP BLK 10X15MM EL 100U 16V 20%CAP T&R 8X7MM .2EL 330U 350V 20%CAP BLK 25X50 EL 1000U 35V 20%CAP BLK RADIAL ELECT _10K 5B LIN 9MM HORIZONTAL P28 _20K 15AAUDIO 9MM P32 100K 1B LIN 9MM P32 500K 15AAUDIO 9MM P32 _10K TRIM POT SNAP ON 0.843" INSULATING BUSHING ___5H CHOKE 100MA RUBBER BUMPER WITH WASHER -SMALLCORNER,2 LEGS NOTCED BLACK POWDER C CLIP 205X032 14-16AWG DISC/INSUL CLIP 205/187X032 18-22AWG DISCO/INS CLIP 250X032 18-22AWG DISCO/INSL RING TERMINAL 16AWG WIRE & #8 SCREW 1/4" JCK PCB MT ALL-GOLD SKT 1/4" JCK PCB MT HORZ 1/4" JCK PCB MT VERT STER RT SWT 12"RCA SINGLE CABLE 0'/90' BLACK 36"RCA DUAL CABLE 0'/90' RED/WHITE Qty. 1 1 1 1 1 1 5 18 5 1 2 1 1 1 5 4 4 1 1 4 1 7 8 2 1 1 2 1 9 6 3 4 1 5 2 1 2 2 2 2 1 1 18 1 2 5 2 2 2 2 1 1 1 11 6 3 9 2 1 1 2 3 1 8 2 8 1 3 1 4 8 2 3 4 1 3 5 1 1 1 YS # 6541 3923 3451 2472 TFS-2B 8451 3692 8889 3438 3803 3810 3538 8430 8438 8633 3428 8268 YCSPOP 8800 9931 8604 8683 8890 9977 8797 4599 4703 4612 4709 4816 4817 2019 4735 4852 4857 4821 4871 5019 4822 4823 4913 4585 4824 5005 4631 4705 4847 6104 4714 4826 4850 4681 4827 4863 4829 5031 6116 4830 4831 4832 4902 4840 4868 4634 4834 4835 4848 4586 4837 4772 4838 6120 4776 4851 4976 4790 4839 4841 6145 4843 Description RCA SNGL PCB MT HORZ K901 XLR MALE PCB MT HORZ MTHOLE-V SNAP EYELET SMALL 0.089 OD PLATED T3,15A GDA BUSSMANN 5X20MM FUSE TRAYNOR DUAL FOOTSWCH 10' CORD-BULK 10" STRAP HANDLE,BLACK METAL ENDCAP HEATSINK THERMALOY 6079-PB RUBBER GROMMET #2183-034-BLK IEC PWR SOC W/.205TAB &FUSE 10A250V NYLON SECUR-A-TACH MINI PLASTIC TIE 4" NYLON CABLE TIE 24 PIN BREAKAWAY LOCK .156 KNOB CHICKEN-BEAK YCS SERIES B-BEAK KNOB 180 DEG KNOB ROUND PUSHBUTTON 1/4" BLACK 8' 3/18 SJT AC LINE CORD REMOVABLE TRAYNOR LOGO PLASTIC NICKEL PLATING YCS POINT OF PURCHASE CARD 6-32 KEPS NUT ZINC 6-32 NYLON INSERT LOCK NUT 10-32 T NUT 1/4-20 NYLON INSERT NUT ZINC 1/4-20 CAGE NUT C79-88142027 5/16-18 NYLON INSERT LOK NUT ZN CLR 5/16-18 KEPS NUT JS500 22AWG SOLID SC WIR T&R JMP 2.0W 2R 5% T&R RES 1/2W 18R 5% T&R RES 5.0W 22R 5% BLK RES 1/4W 33R 5% T&R RES 1/4W 47R 5% T&R RES 1/8W 100R0 1%FLAME PROOF T&R RES 1.0W 100R 5% T&R RES 1/4W 100R 5% T&R RES 1/4W 220R 5% T&R RES 1/4W 470R 5% T&R RES 1/4W 560R 5% T&R RES 1/4W 620R 5%MINI T&R RES 1/4W 820R 5% T&R RES 1/4W 1K 5% T&R RES 1.0W 1K 5% T&R RES 1/4W 1K2 5%MINI T&R RES 1/4W 1K5 5% T&R RES 2.0W 1K8 5% T&R RES 1/2W 2K 5% T&R RES 2.0W 2K2 5% BLK RES 1/4W 2K2 5% T&R RES 1/4W 2K2 5%MINI T&R RES 1/4W 2K21 1% T&R RES 1/4W 3K3 5% T&R RES 1/4W 3K9 5% T&R RES 1.0W 4K7 5% T&R RES 1/4W 4K7 5% T&R RES 1/4W 8K2 5% T&R RES 1/4W 10K 5% T&R RES 1.0W 10K0 5% T&R RES 1/4W 10K0 1%MINI MF T&R RES 1/4W 15K 5% T&R RES 1/4W 18K 5% T&R RES 1/4W 22K 5% T&R RES 1/4W 24K 5% T&R RES 1/4W 33K 5% T&R RES 1/4W 36K 5% T&R RES 1/2W 47K 5% T&R RES 1/4W 47K 5% T&R RES 1/4W 56K 5% T&R RES 1/4W 62K 5% T&R RES 1/4W 82K 5%MINI T&R RES 1/4W 82K 5% T&R RES 1/4W 82K5 1% T&R RES 1/4W 100K 5% T&R RES 1/4W 100K 5%MINI T&R RES 1/4W 113K 1% T&R RES 1/4W 120K 5% T&R RES 1/4W 120K 5% MINI T&R RES 2.0W 150K 5%10MM BODY T&R RES 1/4W 150K 5% T&R RES 1/4W 220K 5% T&R RES 1/4W 249K 1%MINI T&R RES 1/4W 470K 5% T&R RES Qty. 4 1 19 1 1 1 2 4 1 1 8 1.152 18 1 8 1 1 1 1 4 2 1 8 1 2 77 2 1 1 1 4 2 2 1 2 2 1 6 3 5 1 1 1 2 1 2 2 3 1 1 1 2 13 3 19 2 8 2 1 7 3 5 1 2 11 1 1 1 3 2 8 7 2 2 2 2 1 13 5 9 YS # 4844 4845 6615 6616 3696 3700 3537 8842 8871 8808 8799 8832 8801 8829 8755 8828 8809 8753 8756 8727 8843 8926 8770 3752 3833 8657 2355 2335 3865 8482 8488 8818 8817 3440 3424 3522 3554 6544 3698 3682 3731 3732 3984 12AX7 EL34EH 1403 CH1335M CH1335U 2337 2327 2343 2328 2358 3043 3044 3042 3061 Description 1/4W 1M 5% T&R RES 1/4W 2M2 5% T&R RES 13.0" 8C-22AWG RIBBON CABLE .156" _6.0" 9C-22AWG RIBBON CABLE .156" RELAY 1C 02AMP DC24 006MA PC-S RELAY 2C 01AMP DC24 015MA PC-S ACC# 4EB3C1B LONG REVERB #4 X 5/16 PAN QUAD TYPE A JS500 BLK 4-40 X 5/8 PAN PH MS JS500 4-40 X 3/4 FLAT PHIL MS B.O.& WAX #6 X 1/4 PAN PH TYPE B JS500 6-32 X 1/4 PAN PH TAPTITE JS500 6-32 X 3/8 PAN PH TAPTITE JS500 6-32 X 3/8 FLAT PH TAPTITE BO#C HEA #6 X 5/8 PAN QUAD TY A JS500 BLACK 6-32 X 3/4 PAN PH TAPTITE JS500 10-32 X 1/4 PAN PH TAPTITE JS500 #10 X 1/2 PAN QUAD TY A JS500 BLACK #10 X 3/4 PAN PH TYPE A BLACK OXIDE #10 X 1" PAN PH TYPE A JS500 BLACK 10-32 X 1 1/8 FLAT QUAD MS JS500 5/16-18X3 CARRIAGE BOLT ZINC 1/4-20 X 1 5/16 TRUSS PH MS JS500 SNAP IN 1/4 SPACER RICHCO 8 X 3/8 (250 OD,.171 ID)NY SPACER 6-32 X 3/8" HEX SPACER ALUMINUM NYLON STANDOFF NUT #4 375MIL NYLON STANDOFF NUT #4 500MIL 1/2 PLASTIC HEX SPACER #6 3/8 1D FLAT WASHER 3/8 INT TOOTH LOCKWASHE ZINC 3/4 OD X 3/8 ID X .080 THICK WASHER #10 FLAT WASHER FOR 3/16" BOLT 4PDT MINI VERT ALT SWITCH DPDT SLID SW PCMT H GOLD CONTACTS DPDT MINI PC VERT SNP ALT DPST TOGGLE SW QUICK .250" 4 TERM DPDT TOGGLE SW QUICK .250" 6 TERM SPST ROKR SW QUIK 180" AC PWR BL/BL 250 MALE PCB TAB REEL SPRING RETAINER FOR OUTPUT TUBE 9 PIN PC MOUNT TUBE SOCKET BE 8 PIN PC MOUNT TUBE SOCKET BE 12AX7 DUAL TRIODE PREAMP TUBE EL34 PENTODE OUTPUT TUBE YCS100H TOROID COVER VR 122 X 65 YCS50/50H OUTPUT XFMR 100-240VAC 60-50HZ YCS50/50H T'RD 4 CIR XH-HEADER 0.098IN 6 CIR XH-HEADER 0.098IN 6 CIR XH-HEADER RA 0.098IN 8 CIR XH-HEADER 0.098IN 9 CIR XH-HEADER 0.098IN PATCH 04 22AWG 08.0 XH FLAT PATCH 06 22AWG 07.0 XH FLAT PATCH 08 22AWG 13.0 XH FLAT PATCH 09 22AWG 10.0 XH FLAT Qty. 6 4 1 1 2 1 1 2 6 11 2 17 2 19 14 4 2 16 4 4 2 2 8 2 4 6 6 11 11 1 1 4 12 1 1 7 1 1 1 28 2 3 2 3 2 2 1 1 2 1 1 4 4 1 1 2 2 MODEL TYPE: YS1064 YCS50H MODEL TYPE: YS1067 Block Diagram for YCS50/50H/YCS90 YCS50H Tube Configuration DESIGNED AND MANUFACTURED BY YORKVILLE SOUND SPLITTER PREAMP 12AX7 12AX7 12AX7 V3 V2 V1 Effects Send U.S.A. Tone POWER Treble/Mid/Bass EL34 Ch. 2 Gain DISCONNECT POWER WHEN REPLACING TUBES EL34 V5 DÉBRANCHÉ L’APPAREIL AVANT DE REMPLACER LES LAMPES V4 Ch. 1 Preamp V1:A YCS50 Effects Return YCS50 Tube Configuration SPLITTER BRIT Ch. 2 Tone Ch. 2 Gain Treble/Mid/Bass PREAMP 12AX7 12AX7 12AX7 V3 V2 V1 D.I. Out Preamp V1:A POWER + 5881 V5 Dyna-Sound Speaker Emulator DISCONNECT POWER WHEN REPLACING TUBES 5881 DÉBRANCHÉ L’APPAREIL AVANT DE REMPLACER LES LAMPES V4 Pre-Amp Out YCS50 Speaker Configuration 12-inch Speaker YS#7081 Pre-Amp In Boost - Input Ch. 2 Volume BRIT/U.S.A. Select Mono 1/4-inch Preamp V1:B + U1 B Expander Reverb Rtn Ch. 2 + Reverb Drive Reverb Ch. 1 0 dB Boost Level - 8-ohms Accutronics © 4EBC1B U2 B YCS90 YCS90 Tube Configuration SPLITTER Voice Channel Select Channel Select K1 EQ K1 Preamp V2:B Ch. 1 Volume Preamp V2:A Modern Power Amp Scoop Treble/Bass/Mid Ch. 1 Gain External Speaker Out Splitter V3 - Master Volume 12AX7 12AX7 12AX7 DÉBRANCHÉ L’APPAREIL AVANT DE REMPLACER LES LAMPES V3 V2 V1 5881 5881 POWER 5881 V7 + V4 V6 V5 V7 Internal Speaker Out 5881 V6 V5 EFX RVB Footswitch Channel Select Reverb 12-inch Speakers YS#7083 Boost Effects Presence Resonance V4 YCS90 Speaker Configuration 16-ohms - Ch. Select /Boost Footswitch PREAMP DISCONNECT POWER WHEN REPLACING TUBES + + 16-ohms + BLOCK-DIAG-ycs50-ycs90-00-1v2.ai A B C D E F G H I J K 1 1 3682 BLU +PLATE W12 TP2 2 R136 1/4W 820R 250V 2.0W 1K8 To_PreAmp 1 . EL34 PENTODE . R143 249K W30:B 8 3 TP5 W30:C 8 R133 2R . 2.0W W30:D 8 W30:E 8 R134 2R W30:F 8 . 1/4W W30:G 8 4 C67 10N R144 249K W30:H 8 2 3 4 5 6 7 8 3 3682 RED OutCT W14 PENTODE EL34 . R138 1/4W 820R 250V To_PowerSupply 1 W29:A 9 2 9 W29:B 3 9 W29:C 4 W29:D 9 5 W29:E 9 6 9 W29:F 7 9 W29:G 8 W29:H 9 9 W29:I 9 W30:A 8 . 2.0W 1/4W C65 10N 2 Val V5:A R149 4 R142 2.0W V4:A 1K8 . Val . TP4 3682 BRN -PLATE W13 R50 1/4W 820R . 1N5237B D36 8V2 0W5 6 . 100U C76 16V R258 220K R257 220K 3682 GRN . FIL W10 Bias M 10K P28 Lin 4520 D31 2N5401 Q24 5108 C77 10U 160V 4148 R260 1/4W 18K TO92 . R140 1/8W 100R0 FLMP R259 1/4W 10K R141 1/8W 100R0 . R49 1/4W 33K 1/4W 5 1/4W 5 3682 GRN FIL W11 V5:B PENTODE {Voltage} FLMP V4:B PENTODE {Voltage} 6 . 7 7 M1292.PCB_DATABASE_HISTORY MODEL(S):# 1 2 3 4 5 6 7 8 9 10 11 12 13 8 DATE 19-JUN-2007 11-FEB-2008 14-APR-2008 19-JAN-2010 14-MAY-2010 D D D D D D D D YCS50 Output VER# DESCRIPTION OF CHANGE 1.00 FIRST DESIGN 1.01 REVISION PER PC7456 1.02 CHANGE VALUE OF R49 TO 33K PER PC7535 2.00 PC7931: Add another clinch origin for upper boards V03 PC8102: Add clearance for lower half panel GG V N V N V N V N V N V N V N V N 8 Product YCS50 Output Power Amp 9 PCB# M1292 Date: Fri May 14, 2010 Rev:V03 Filename: M1292V03sch.sch2002 A B C D E F G H I J Sheet 1 of 1 YsType:. K 9 V5 TP5 V4 -PLATE 3984 Val 249K 249K 10K 4148 D31 820R BLU W12 C77 R260 R49 2N5401 RT V +PLATE LONG AXIS R142 RT V W14 OutCT RED 2.0W 1K8 R138 R144 R143 220K R257 X13 R149 1K8 2.0W RT V 820R R136 To_PreAmp 3538 3538 R50 To_PowerSupply Val C67 10N 5834 BRN P28 10K 18K 33K 820R 3984 Bias R141 100R0 100R0 R140 C76 INSERT ORIGIN YCS50 Output V03 R258 220K M1292 583 4 10N C6 5 R259 W13 10U 160V Q24 VCD W30 SCORE SCORE ORIGIN CLINCH SCORE SEE LAYOUT DOCUMENTATION SCORE W29 TP2 R134 R133 TP4 X3 X2 FIL GRN W11 FIL GRN W10 2R 2.0W 2R 2.0W 100U 16V D36 8V2 SHORT AXIS BlankSize - 16000x12800 StepAndRepeat - [email protected]@6.4 SEE LAYOUT DIAGRAM M1292.PCB_DATABASE_HISTORY MODEL(S):# 1 2 3 4 5 6 7 8 9 10 11 12 13 DATE 19-JUN-2007 11-FEB-2008 14-APR-2008 19-JAN-2010 14-MAY-2010 D D D D D D D D YCS50 Output VER# DESCRIPTION OF CHANGE 1.00 FIRST DESIGN 1.01 REVISION PER PC7456 1.02 CHANGE VALUE OF R49 TO 33K PER PC7535 PC7931: Add another clinch origin for upper boards 2.00 V03 PC8102: Add clearance for lower half panel GG V N V N V N V N V N V N V N V N M1292 PRODUCTION NOTES 1. APPLY RTV TO C65 AND C67. 2. BREAK ALONG THE LINE SPECIFIED ON THE BOARD BEFORE CLINCHING SPARATELY THE TWO HALF BOARDS B C D F G H I J K L GND 2 250V 2 R140 1/4W 47K K3:A RING . 1/4W 1/4W 1N R6 1K C8 63V . C99 1N To_IG W8 . . 100V C98 10N UP UP DOWN N142 OD_GR 1 W14:A 8 GND GND R170 22K LVGND MINI C103 1N P15:A M TREBLE . 100V C106 10N 400V . 113K R14 PGRID 8 NGRID _W4 4 NET356 1N C2 400V SPLITTER 7 W14:H 8 -FDBK +200V +225V 6 W14:G 8 3 GND 5 W14:F 8 XF_P1 LOW+ 4 W14:E 8 STANDBY FIL- 3 W14:D 8 OD_OUT_PL . STANDBY 2 W14:B 8 SPLIT_IN R164 1/4W 100K 100K 1B 4424 R162 1/4W 150K GND . +15V 8 R161 47K CLN_GR FIL- R32 220K . R8 1K5 C10 . . 8 W29:D 8 V+ MINI R144 1/4W 47K P14:A M CL VOLUME R146 1/4W 120K 3N3 C89 100V R149 1/4W 1M . 5 . U7:A Contour 3522 S9:B DOWN UP 500K 15A 4425 -15V Alternate . R125 220K . R127 100K PC#7535 REMOVE C10 GND R142 1/4W 100K MINI 500K 15A 4425 4 W19:D 8 R159 1/4W 100K P3:A BOOST LEVEL M . 4 W32:D W29:E 8 TL072 U7:C MINI 2M2 1/4W R152 6 1/4W 4 R21 1/4W 47K . P16:A M MID 6 3 W19:C 8 5 2N2 C88 400V 1/4W . W29:C 1/4W P13:A M CL GAIN 20K 15A 4423 R160 2M2 8 Alternate CLN_OUT_PL 2X_TRIODE_HCT {Body} 1/4W R167 R168 100V 3 1/4W V2:C 2X_TRIODE_HCT {Voltage} 1/4W C102 47N 8 W19:E V- . Val V1:A 500K 15A 4425 N054 5 250V 4 C15 47N CLN_GR P17:A M BASS LVGND LVGND Alternate 1/4W 500K 15A 4425 . UP BRIGHT S8:B S8:A 3522 CLN_OUT_PL DOWN 100V R166 18R LVGND R163 22K STANDBY CLN_OUT_PL ALTERNATE GND 400V R165 33K C104 47N V3:C 2X_TRIODE_HCT {Voltage} W18:D 8 EQ Shift EQ Shift S10:D 3440 3440 2 3 W18:C 8 CLN_GR GND . GND LOW+ 1/2W R171 1/4W 220K 1U 1/4W GND GND W7 BLK W2 BLK #18 #18 R4 1M ALTERNATE NET356 S10:C CLN/BOOST AMPLIFIER . C86 400V 47P C105 100V 4 1 GND _W3 R133 1/4W 220K . V1:C 2X_TRIODE_HCT {Voltage} Q W29:F W14:C 8 GND INPUT 8 . W29:B 8 5 R137 1/4W 220K ALTERNATE DOWN C96 4N7 EQ ShiftEQ Shift S10:B S10:A 3440 3440 UP ALTERNATE 3700 1 8 W19:B 2X_TRIODE_HCT {Body} . 3 J2 6 N142 NET356 NET356 INPUT W29:A 8 1/4W INPUT R2 1/4W 2K21 8 W19:A 1/4W #18 W3 YEL . Val V1:B NET356 DOWN #18 YEL W4 1 250V 1/4W 6541 DOWN C32 100N J1 J6 UP INPUT_PL 6541 P INPUT_PL R169 1/4W 100K INPUT_PL 2 GND 6 To_Input To_Input O 1/4W . 3682 GRN N W19:F 8 +200V 82K5 R15 4 M Preamp Headers Input Stage 1 E DOWN UP S9:A 3522 Contour A R145 1/4W 47K GND C81 2N2 . 3696 400V R138 24K TL072 . C82 1N R158 1/4W 62K D15 4148 . U7:B 400V MINI 3696 100K 1/4W R154 N109 3700 GND 7 7 +225V W32:B 8 OD Stage W29:H 249K R48 . R10 1K2 MINI W32:A 8 R34 249K . 470P C21 100V 6N8 C77 100V C62 33N 8 1 C64 100N P4:A M OD VOLUME TO92 100V 8 W18:A R108 2M2 . . Alternate 33K R129 Q11 5101 63V 20K 15A 4423 P6:A M MID R113 100K R123 47K C66 330N . +225V C59 150N . +15V 8 BC550C GND C30 63V . 500K 15A 4425 R109 1/4W 120K MINI R85 22K DOWN UP S4:B S4:A 3522 Scoop 1/4W . 1U R12 1K GND W19:H 8 1 P7:A M BASS R124 36K 100V R1 1.0W 4K7 63V 63V +200V U6:C R100 1/4W 8K2 R75 4K7 . . R107 1/4W 82K MINI -15V GND 9 R73 220R . -15V 10U C17 450V 100N C61 63V . U6:B . GND MINI TL072 V+ MINI . 330N C28 63V 1/4W 8 R28 1M 1/4W 8 1/4W W19:G 8 . 2X_TRIODE_HCT {Body} R36 1/4W 249K OD_GR 7 R39 1/4W 120K 400V C58 10N 8 1/4W 220K R17 C25 1N 63V +15V 100V C68 220P 100V R104 1/4W 120K V- 2X_TRIODE_HCT {Body} Alternate Alternate 500K 15A 4425 C75 6N8 . 4 2N2 C5 . Val V2:A R105 1/4W 47K R102 1/4W 220K . C63 100N Modern 3522 S3:A DOWN UP . Val V2:B 8 W18:B 250V R126 56K . 1/4W 400V 2 1/4W C23 2N2 1/4W 1/4W . 400V C34 100N Modern 3522 S3:B DOWN UP W29:G 400V P2:A M OD GAIN 9 8 220P C90 100V C38 2N2 1/4W 1/4W 7 OD_OUT_PL . OD_GR 10N C94 100V 500K 15A 4425 C18 400V GND P5:A M TREBLE 1/4W . 1/4W K3:B 100K 1B 4424 1N 8 K1:A 470P C20 250V 1/4W R20 82K5 1/4W +225V R18 113K 400V 1/4W K2:A C71 1N 2 OD_OUT_PL 1/4W OD_GR OD_OUT_PL TO_PRE-OUT GND 10 10 GND GND -15V +15V Product LVGND LVGND YCS50H Preamp Gain/EQ 11 PCB# M1293 Date: Fri Mar 12, 2010 Rev:v4.00 Filename: M1293V400.sch2002 A B C D E F G H I J K L M N O P Sheet 1 of 3 YsType: Q 11 E F H I J K L M . V+ 10K 1/4W R52 C44 22U 50V 50V MINI TL072 T +15V 220P C37 R - - 100V S - IG S R 50V T - - C13 1N 50V R30 1/4W 10K0 R65 100K IG TL072 C16 100N 63V 1/4W Gold Gold Gold C35 1N 50V . 50V 22U C48 MINI MINI C26 1N - R - T - . TO_PRE-OUT 100V +15V R37 1/4W 10K0 1/4W 50V 1N5242B 0W5 100V R41 10K0 MINI +15V These parts are not stuffed. C79 33U TL072 D5 4148 R106 1/4W 2K2 16V R88 33K D22 Power 6398 RED N280 8 R131 1K 6 8 C54 100N 250TAB 7 LVGND EC122 STANDBY +15V STANDBY -15V LVGND EC121 SPLIT_IN LVGND N004 _W2 N003 1 2 3 4 5 6 6 6 6 6 6 6 W27:A W27:B W27:C W27:D W27:E W27:F LVGND SPLIT_IN LVGND N004 N003 B C D E 1 2 3 4 5 6 6 W31:A LVGND 6 W31:B LVGND 6 W31:C +15V 6 W31:D -15V 1 2 3 4 W32:H 8 W18:G 8 8 7 . Val V3:B PGRID 2X_TRIODE_HCT {Body} R93 1M C84 3N3 R89 82K R91 1/4W 470R . 220R 1/4W R71 6 -15V . R38 1/4W 10K TL072 . U5:A U2:A -15V GND SPLITTER R95 1M . {Body} 2X_TRIODE_HCT 63V V3:A Val . GND R150 3K9 100V 16V 8 W32:E C33 220P 100V R47 1/4W 10K R33 1/4W 10K . R61 1/4W 620R C47 22U R63 1/4W 620R C43 22U R66 1/4W 220K W18:E 8 63V MINI J14 MINI 50V R60 220K . 3923 IG 82K 1/4W R139 3682 YEL 8 OHM W12 3424 4ohm/8ohm S1:B 3424 4ohm/8ohm S1:A 3 4 Alternate #18 YEL W16 XF1 Part# XF-OUT-CT 20K 15A 4423 5 3682 GRN 2 4 OHM W13 T R S - - - EXT SPEAKER J7 #18 BLK W15 9 GND #18 BLK W6 SPKR 5 {Description} {Hz} #18 YEL W1 GND SPKR LVGND -Plate . 1 6 NGRID 3682 BLK W32:G GND W11 T R S - - - INT SPEAKER J3 4 W35:A 10 GND 4 W35:B Product GND 4 W35:C 4 W35:D YCS50H Preamp Effects/Master 6 W31:E PCB# M1293 Date: Fri Mar 12, 2010 Rev:v4.00 Filename: M1293V400.sch2002 6 W31:F F 7 . LINE.OUT 50V . XF_P1 +Plate R157 2M2 P10:A M Presence . R86 100K 5 XF_P1 . C87 150N 220P C12 200V . C93 33U . . R97 1/4W 10K 1/4W UP UP 6544 6544 S7:B S7:A STANDBY STANDBY DOWN DOWN N258 1 W32:F STANDBY 250TAB 16V . Resonance M P11:A 500K 4425 15A 8 100V . N246 N086 C52 10N SPLIT_IN N236 1 6 SPLIT_IN . W32:C 8 W18:H 1/4W . -FDBK Splitter W18:F 8 R136 3K3 1/4W 1/4W Mini D23 Standby 6399 YEL GND A . 8 -FDBK 8 _W1 C9 33U GND U6:A 3 GND 680P C60 100V TL072 GND . R143 1.0W 1K TO_PRE-OUT . 3N3 C51 100V TL072 U5:C . U5:B 63V 1/4W C70 330N C56 10U . 68N C55 100V R94 1/4W 4K7 Voice1/4W 3522 S6:A S6:B DOWN UP . R82 1/4W 4K7 . 1/4W R98 4K7 R90 1/4W 4K7 MASTER VOL M 20K P12:A 15A 4423 N089 11 R23 47R C36 220P 100V R46 1/4W 10K +15V GND N085 . U2:B Q4 5104 . N141 LVGND IG TO92 GND 10 . R25 1/4W 470R U2:C U4:B 33U C80 16V N273 TL072 5 -15V . N067 Headphone J15 R22 47R 16V +15V 9 #16 GRN W26 TO92 MPSA56 GND GND . 33U C7 16V . 1/4W 1/4W 1/4W 8 63V #16 GRN W17 HeadPhGnd HeadPhGnd -15V TO_HPHN C74 330N R99 33K R29 1/4W 10K R40 8K2 -15V 100N C69 63V HDPHN HDPHN . 220R 1/4W R80 Q3 5103 1/4W 100N C67 63V #18 RED W9 -15V D3 4148 TO_HPHN 100N C19 63V MPSA06+15V . GND 100N C95 63V #18 W23 RED R26 1/4W 4K7 TO92 R24 33R +15V 100N C14 63V 4 GND . 7 100N C78 63V NET_D NET_C 4 C24 39N MINI C39 1N C6 2U2 3 D17 4148 . U4:C 1/4W IG 63V D18 4148 2N5638 Q21 5119 TO92 NET_B NET_A GND TL072 V- R57 1/4W 10K0 GND 6541 C72 33U P8:A REVERB1 M 16V . GND MINI 6 . R3 1/4W 560R J5 R9 47R R43 1/4W 10K0 MINI TL072 R5 1/4W 82K . C4 100V 100P R7 1/4W 2K2 D12 4148 2N5638 Q15 5119 TO92 20K 15A 4423 GND R77 1/4W 15K 8 S R35 8K2 C22 39N 50V V+ PRE-OUT J11 1/4W 5 . U1:A Q1 5104 0W5 D2 12V0 1N5242B 12V0 D1 R16 1/4W 10K . C3 100P 100V MINI R56 1/4W 620R 2N2 C1 400V 4K7 1/4W R27 R31 470K 2N5638 Q19 5119 TO92 1/4W C45 22U MPSA56 -15V R50 1/4W 10K0 R64 1/4W 220K 6541 GND RevSend . . TL072 MINI 1/4W R68 1/4W 620R 50V R19 100K D9 4148 8 4 R11 47R R13 1/4W 470R U1:C MINI 63V V+ 22U C27 U1:B 100N C11 J4 1/4W R49 1/4W 10K0 TO92 1/4W U4:A 16V . 4148 D4 Q2 5103 8 R59 1/4W 10K0 2N5638 Q13 5119 TO92 20K 15A C101 4423 33U P18:A REVERB2 M . V- 50V T R78 1/4W 15K 4 R C29 220P IG GND MINI 2 GND . RevRet MINI S . . MPSA06 1/4W AMP-IN J10 22U C40 +15V V+ 50V 16V R45 1/4W 24K R62 100K 100V V- . R112 1/4W 4K7 TL072 - . 4 R67 1/4W 220K R51 1/4W 10K 22U C41 20K 15A C73 4423 33U P9:A FX Ret 1 M U3:B . . 47K 1/4W R44 GND R54 1/4W 10K 22U C42 . EFF.RETURN EFF.SEND J13 J12 #16 GRN W20 8 GND 3 GND RING U3:A U3:C C97 33U P19:A FX Ret 2 M 16V . 1/4W 4 R53 1/4W 620R 1/4W 1/4W N101 as per PC7865 Q 20K 15A 4423 R116 1/4W 4K7 . on P1 2 100V 50V -15V 10K 1/4W R55 16V C31 220P R42 1/4W 24K V- IG and GND C50 22U . N088 Shortbridge between P 1 MINI . O R69 1/4W 620R 100V R58 1/4W 47K 10K 5B LIN 4417 33U C49 P1:A M Send Level N 1/4W C46 220P 1 G 8 D V+ C V- B 4 A G H I J K L M N O P Sheet 2 of 3 YsType: Q 11 A B C D E F G H I J K L M N O P Q 1 1 K1:B +15V R156 4K7 R128 10K . 1/4W R121 47R R120 100R T . R S MPSA06 NET_B TO92 . TO92 R84 10K R83 4K7 UP R92 1/4W 10K Q7 5101 S5:B S5:A 3522 . . -15V D8 4148 D13 4148 NET_D D11 4148 3 D14 4148 LVGND Alternate +15V 1/4W 22U C100 50V NET_C DOWN . TO92 . CH1 D20 YEL 5907 CH-SELECT 1/4W TO92 BC550C . NET_A R134 1/4W 470K . Q9 5102 R147 1/4W 470K . FT.SWITCH J8 BC560C R148 1/4W 1K R135 1/4W 470K . -15V 63V . Q20 5103 R141 1/4W 470K TO92 C85 100N 1/4W MPSA06 Q14 5103 2 Q16 5101 Gold Gold Gold 3 . R153 2K . 1/4W 4148 D16 . R130 22K 1N5240BRL D10 100N 10V0 C83 0W5 BC550C 63V 1/2W 1/4W 2.0W R79 2K2 . . 2 R103 1/4W 1K R132 100K 1/4W CH2 D24 GRN 5908 LVGND +15V R118 2K2 1/4W K2:B 1/4W 3696 1/4W 3696 +15V MINI R115 2K2 MINI 4 R111 10K 1/4W 1/4W 4 . BC560C D7 4148 RVB/EFX DFT J9 K3:C S R Q18 5102 LVGND TO92 T . BC560C Q17 5102 LVGND R110 10K TO92 3700 R117 47R . . R101 220R -15V D25 BC560C R119 10K . R122 4K7 . S2:A 3522 UP UP Alternate Alternate BOOST S2:B 3522 1/4W MINI TO92 DOWN . -15V YCS50H MODEL(S):REF FUNCTION PART# KNOB LVGND 4148 C76 330N 63V R81 100K . C53 4N7 D6 7 M1293 POTLIST . +15V DOWN R114 1/4W 10K Q8 R74 5101 2K2 TO92 BOOST D21 RED 5906 BOOST 1/4W TO92 1/4W Q12 5103 R172 1/4W 22K 4148 Q10 5102 BC550C 1/4W 2U2 C57 63V -15V N200 400V . . MPSA06 6 . R151 22K LVGND 1/4W R72 10K 100N C92 63V R155 22K 1/4W C65 1N 1/4W 1/4W 4148 D19 100N C91 63V 1/4W 5 Gold Gold Gold 1/4W 5 R87 47K . 250V BC550C R96 1/4W 100K R76 1/4W 4K7 . . TO_PRE-OUT J109 Q6 5122 TO92 R70 1/4W 100K . Q5 5101 TO92 GND -15V 8 M1293 PCB_DATABASE_HISTORY 2N5401 2N5551 MPSA06 MPSA13 MPSA43 MPSA56 MPSA63 MODEL(S):- 9 YCS50H VER# DESCRIPTION OF CHANGE # DATE RELEASED FOR PRODUCTION 1 11/APR/2008 1.00 PC#7535 & flipped standby switch. 2.00 2 2008/04/30 PC7865: changes according to PC 3 23-SEP-2009 . PC#8037: CHANGED TO NYLON STANDOFF NUT 4 12-MAR-2010 4.00 CHANGED TO XH STYLE CONNECTORS V 5 D N V 6 D N 7 D V N V 8 D N V 9 D N 10 D V N V 11 D N V 12 D N 13 D V 10 6 {NEW} P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 SEND LEVEL OD GAIN BOOST LEVEL OD VOLUME TREBLE MID BASS REVERB1 FX RET 1 PRESENCE RESONANCE MASTER VOLUME 4417 4425 4425 4425 4424 4423 4425 4423 4423 4423 4425 4423 8431 8431 8431 8431 8431 8431 8431 8431 8431 8431 8431 8431 N N N N N N N N N N N N P13 P14 P15 P16 P17 P18 P19 R R R R R CL GAIN CL VOLUME TREBLE MID BASS REVERB2 FX RET 2 F F F F F 4425 4425 4424 4423 4425 4423 4423 P P P P P 8431 8431 8431 8431 8431 8431 8431 K K K K K N N N N N N N N N N N N 7 8 9 BC550C BC560C J109 2N5638 10 EBC TO-92 C B E TO-92 DSG TO-92 6882_PC "STYLE_P32" "STYLE_P28" Product YCS50H Preamp Switching 11 PCB# M1293 Date: Fri Mar 12, 2010 Rev:v4.00 Filename: M1293V400.sch2002 A B C D E F G H I J K L M N O P Sheet 3 of 3 YsType: Q 11 65 W20 R22 R25 R23 R26 4417 5B LIN C43 RT V 22U 50V R60 220K J14 - - - 220P C33 R46 R47 620R - C47 22U 50V RT V 220K R61 - 10K X11 X 10K X C36 220P X W17 U2 R63 R66 620R Q4 R29 X3 Q3 EFF.RETURN LINE.OUT R65 C9 R33 10K 10K R38 X TL072 R42 TL072 620R R53 C50 BOT WIP TOP R67 22U 50V 220P C46 50V 22U RT V 16V 33U X R45 R51 R54 J13 100K 100K Send Level 10K #16 P1 620R C48 GRN J12 - 16V 33U - IG 10K R55 R58 47K 10K R52 RT V 50V 22U 24K 10K 10K C41 RT C42 V C44 22U 22U EFF.SEND 50V 50V RT V RT V X X RT V X C7 W9 24K C29 220P C31 220P X6 X7 10K0 10K0 R43 10K0 1N C26 C22 R37 220P C37 - - U3 47K X X R62 Gold R44 R69 R68 X18 R40 39N C24 D3 620R Gold 8K2 8K2 J11 PRE-OUT RT V Gold 9 2358 R35 C49 AMP-IN R59 5 1 12V0 D1 12V0 D2 4148 D4 R41 4148 TL072 22U 50V 10K0 C45 W5 R56 620R R57 10K0 1N C39 U1 100P C3 R13 100P C4 22U 50V C14 R49 10K0 100N C16 10K0 100N 1N 10K0 1N C13 X5 C27 38 35 U4 C35 R50 J10 41 MPSA56 Q1 X1 MPSA06 Q2 R30 C6 2U2 63V TL072 R5 R7 2K2 t 100K 1/2W 18R R166 X9 X12 C54 100N 82K 560R R3 R R ev C R A e G 2 G 3 J4 SI G G 1 C11 R86 C12 220P R89 82K 1M 10K C52 10N R97 C21 470P 1M 470R 1U 63V X8 R93 R91 82K5 R20 R39 120K R36 249K R48 249K 249K R34 2N2 C23 R95 X2 470P C20 2N2 C5 R28 1M 8 2328 50V 22U C40 R24 33R 220K Gold 1 X22 X17 RT V C17 8 2328 RT V 5959 R64 220K Gold 1 W19 X16 - W18 470R 10K 100K R19 C19 100N 10U 450V m p Gold V3 Val X4 470K R31 R12 1N C25 14 Gold C30 RT V 4K7 R27 W - 1K2 C28 330N R168 Gold X14 Gold 4ohm/8ohm 3424 J9 R10 C32 J8 RVB/EFX DFT 82K C15 47N RT V V2 X10 113K R167 R139 5865 X13 220K R32 V1 2N2 2358 5841 R4 G1 1U 82K5 R15 9 5865 1K C38 4 OHM Val R17 R6 1M 1K SIG 47P C105 G2 W8 GRN C18 1N 100N W13 GRN 8 OHM W12 YEL R8 R18 S1 DPDT SLID - 5 FT.SWITCH J7 W16 SPKR GND 63V 6541 G3 W3 RING 6541 TIP-SW RCA W2 W1 #18 W15 BLK YEL 1K5 To_IG 1 RT V 100N T o Po w er A EXT SPEAKER #18 #18 BLK 220K . R16 39N W11 GND W10 C8 C34 RT V 100N . 3732 2 INPUT 3732 RED SEND G X 1N 113K R21 47K R11 J5 W6 #18 . C2 R9 47R 47R 3 W7 RING-SW R14 3732 C1 2N2 G J6 J2 X W4 RETURN WHT 1.0W 4K7 R1 G SI INT SPEAKER J3 - - J1 (5/6) M1293 (2/ 6) 1 To_Input 1 M1293 2K21 R2 G2 SIG 3921 VE EE SL BLK (3/6 ) M1293 TIP G3 G1 41 65 GND X G YEL X 2 SPKR nd Se A ev C R R To_Input RCA 3923 BEC REVERB2 WHT P18 Q21 LONG AXIS Top Assy M1293 v4.00 Pcb MechM1293 v4.00 SEE LAYOUT DOCUMENTATION (6/6) R80 R106 2K2 TL072 6399 YEL 6398 D23 D22 15A 4423 RT V X58 MASTER VOL P12 W27 Standby Power RED 20K R136 3K3 C80 X42 X43 R131 C67 2335 WHT 1K 4K7 4148 R98 4K7 R88 33K C70 33K R99 4K7 R90 D5 R94 3N3 P11 J15 Headphone R143 1.0W 1K 2327 6 1 S6 2M2 CL CR NOL NOR Voice P19 C101 2335 StepAndRepeat - [email protected]@0.000 ClinchRepeats - [email protected]@0.000 4 M1293 (4/ 6) 6 WHT 4423 W35 Q19 NCR S7 Alternate NCL 3522 R157 4425 Resonance X57 3K9 R150 RT V 33U 16V C93 150N X15 C87 4423 Presence Contour BlankSize - 19000x8000 680P 15A WHT VCD ORIGIN C60 X37 500K 15A 33U 16V 4148 D12 4148 2N5638 D9 15A 20K RT V C74 C84 FX Ret 2 C97 X33 X32 X24 15K R78 R77 15K X35 2N5638 33U 16V C73 TL072 X28 R112 R116 X30 X31 R105 J109 220R 47K 4K7 4K7 33U 16V 20K 330N 2337 8 WHT P10 W23 X W26 330N 1 1 P17 2335 100N C56 M1293 2343 NOR RT V 4423 RT V 100N C69 10U 16V R71 X 1 NOL Q15 2328 Q13 D8 4148 R134 470K 4148 D13 470K R141 X59 RT V U5 4423 FX Ret 1 2335 X64 X66 15A C79 9 C51 3N3 STANDBY CR 120K R135 470K 20K 16V 33U 5 2358 R82 4K7 6544 NCR CL R104 Q5 2335 WHT 15A C55 68N DPDT TOGGLE 47N NCL RT V 1 W24 P9 20K WHT X67 W32 4425 BASS R81 X36 C66 330N BC560C C92 C91 15A U6 6N8 C75 2N5638 D17 4148 470K R147 D18 4148 500K 100N 22K R155 100N R151 X61 X47 100N Q18 Q16 Q17 22K R73 4N7 R110 R111 10K 10K R118 P8 16V 33U RT V R130 C72 D10 100K R132 10V0 4148 D11 BC550C BC560C 4148 D14 22K C83 X45 X48 4423 REVERB1 Alternate P16 R87 15A 220P C68 R115 X41 X44 3N3 C89 220K TL072 R138 C88 47K 20K 16V 33U MID 2K2 P7 C78 C53 2K2 BASS 100N 3522 C82 D15 1N 4423 C95 U7 100N R158 62K 100K R159 150K R162 S9 4425 2N2 C63 100N 33N C81 Scoop X40 R70 Q6 100K 100K 2N5638 22K R164 100K 33K R165 2N2 8 TREBLE EQ Shift 20K 15A 4424 R163 CR NOR 2335 WHT 2328 NCR CL NOL 4148 24K X62 W29 1 WHT R149 R154 C106 1N R170 22K 2M2 C2 C1 RELAY 1C 1B C98 C99 10N S10 (1 of 6 ) P15 100K R108 X51 v4.00 S4 Alternate NCL P6 NO NC C76 330N YCS50H Preamp K1 3696 C61 R107 R109 R146 120K R102 R142 100K 100K 4148 1N R124 36K M1293 100N 1M 100K D6 X69 4K7 R75 X39 3522 56K 500K 15A 3522 WHT 3440 R96 X21 R74 R113 WHT 47K 100K R169 R126 Modern R145 47K X52 X50 R137 WHT CR NOR X65 X63 2M2 R144 47K P14 2335 INSERT 2K2 X23 R72 10K 2U2 63V C57 BC560C NO NC C X60 MPSA06 C65 1N CL VOLUME NCR CL NOL MID C104 NOR 15A 4425 NCL 4423 2335 WHT 8K2 C62 C71 C102 47N NOL BRIGHT 500K Alternate 4424 TREBLE 2M2 R160 CR R152 NCR CL 1N C86 220K R171 R119 X54 220K 220K R125 X46 4N7 C96 4148 D19 Alternate NCL BC550C X20 X26 47R R127 100K R117 X56 C1 S8 47K R161 C103 1N SHORT AXIS CL GAIN 33K 47K X19 R101 NO C2 X49 WHT NC D16 MPSA06 4K7 R156 4148 47R R121 R120 100R 22U 50V 3700 CLINCH ORIGIN RELAY 2C 4425 WHT 3522 - WHT 15A R133 220K R140 C64 R123 47K R129 6N8 C77 BC550C S3 15A R85 22K R100 C58 10N 20K BUTTON 2335 K2 3696 100N BUTTON 5908 + C100 10N BUTTON D24 GRN C94 P13 500K K3 RELAY 1C Q12 4425 OD VOLUME C59 150N 1B 100K 10K P5 100K Q11 10K 4K7 R122 P3 15A 2335 WHT 4K7 X29 X34 X38 BUTTON RT V C90 220P R114 4425 BOOST LEVEL P4 500K 10N 2K 1/2W Q20 CH2 MPSA06 X53 100N C85 R148 1K R153 3522 BOOST Q14 NOR 3522 NOL CH-SELECT CR NOR Q10 9 Q8 BC550C R76 BUTTON CR BUTTON NCR CL NCR CL NOL 5 RT V BUTTON Alternate NCL NCL 10K R128 BUTTON S5 Alternate 2358 1 500K 15A 220R 4148 D7 S2 P2 WHT - X55 4425 OD GAIN W21 + BOOST 5906 X27 15A RED D21 120K 82K BC560C 4K7 Q7 BC550C 2K2 R79 2.0W D20 - + CH1 YEL 5907 X25 10K R84 10K 500K Q9 R92 R103 1K R83 2335 WHT Wave Solder Support Into Wave LOC 22K R172 4148 D25 W31 SEE LAYOUT DIAGRAM M1293 PRODUCTION NOTES 1. DO NOT AUTO INSERT OR HAND INSERT COMPONENTS MARKED WITH "X" 6544-MTG Notch 6544 3752 (2) PCB 2343 SEE LAYOUT DIAGRAM M1293 POTLIST YCS50H M1293 PCB_DATABASE_HISTORY MODEL(S):- MODEL(S):REF FUNCTION PART# KNOB YCS50H VER# DESCRIPTION OF CHANGE # DATE 1 11/APR/2008 1.00 RELEASED FOR PRODUCTION 2 2008/04/30 2.00 PC#7535 & flipped standby switch. 3 23-SEP-2009 . PC7865: changes according to PC 4 12-MAR-2010 4.00 PC#8037: CHANGED TO NYLON STANDOFF NUT 5 D V CHANGED TO XH STYLE CONNECTORS V N 6 D 7 D V N 8 D V N V N 9 D V 10 D N V 11 D N V N 12 D V 13 D N 2N5401 2N5551 MPSA06 MPSA13 MPSA43 MPSA56 MPSA63 SEND LEVEL OD GAIN BOOST LEVEL OD VOLUME TREBLE MID BASS REVERB1 FX RET 1 PRESENCE RESONANCE MASTER VOLUME 4417 4425 4425 4425 4424 4423 4425 4423 4423 4423 4425 4423 8431 8431 8431 8431 8431 8431 8431 8431 8431 8431 8431 8431 P13 P14 P15 P16 P17 P18 P19 CL GAIN CL VOLUME TREBLE MID BASS REVERB2 FX RET 2 4425 4425 4424 4423 4425 4423 4423 8431 8431 8431 8431 8431 8431 8431 PIN CONFIGURATION BC550C BC560C J109 2N5638 G2 G1 4 C B E TO-92 DSG TO-92 5 4 5 1P 6 6 NC 2K 3 7 H 2 7 H 2G 2 8 NC 6882_PC H H P 3 1 EBC TO-92 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 EL34 8 K G3 1 2P 1G 1K 9 HT 12AX7A "STYLE_P32" "STYLE_P28" A B C D E F G H I J K L M N O P Q 1 1 2 2 3 3 D15 C87 350v HER508 Gnds D16 LVGND Copper Tie Here Dummy 3682 W16 - Dummy 3682 W4 - R184 1.0W 100R CHGND Dummy W21 . NET00000 3682 7 RED 6 3682 BLK LINE W7 3682 BRN HV W10 RED PRI W68 3682 VIO 1000U C80 35V D10 4007 HVCT W11 6872 3692 R185 1.0W 100R . TO220 +15V 100U C82 25V 100N C84 63V T1 {Description} 1327(E) LV W13 LVGND 2 LVGND 1000U C81 35V D11 4007 3682 4 YEL CT W14 3682 GRY GRY LV W15 8 DPDT Switch S15 4N7 C113 250V 3682 GRN . 9 5 4 W2:C 6 4 W2:B 4 W2:A 4 W2:D -15V 3692 7 -15V FIL- . 250V GRN 1 220N 250V C90 CHASSIS CHGND W19 DPDT3 . GND D19 220N C91 4007 R179 47K . R180 47K . 350V C92 22U -RAW R181 1/4W 4K7 . 350V C93 22U 35V C88 1000U 8 R182 1M . GND FUSE F1 22U C110 350V 2 GRN 9 PR2 . 100N C85 63V MC7915CT U7 3 PRI W9 BLK 100U C83 25V R183 5.0W 22R 1/2W 3682 BLU 4 10U C101 450V REF 4007 1/2W WHT-YEL 3682 W8 LINE W22 +225V . 10U C100 450V INNeg15Reg OUT YEL 3682 WHT TO220 . 6871 D12 GRY R220 470K R203 1.0W 4K7 LP_PS 3 1 1/4W 22N C112 275V 7 HV W12 R219 470K . GND BLK 6 3682 5 GRY R214 470K . 22U C109 350V R178 1.0W 10K0 +15V 4 3682 RED RED 22U C107 350V FIL+ REF 4007 R212 470K 470U C89 25V . U6 MC7815CT IN OUT Pos15Reg D9 . 10K0 1.0W R205 . GND 10MM 0 W40 HER508 3682 - 10MM SPLITTER R221 2.0W 2K2 WHT 3682 22U C106 350V GND 5 WHT-BLK/YEL BLK-ORG 3682 W17 3682 W5 R172 150K W18 Choke 1/4W C86 350v R171 150K SCREEN {Description} COIL WHT 3682 1/4W HER508 D40 M1295 470U 5957 M1353 330U 6574 M1357 220U TBA HER508 W20 Choke 2.0W D14 PWR 2.0W PCB# Value Part# 1 OUTX-F_CT 16AWG VIO W3 C86 and C87 Values HI V 1/4W 16AWG W1 RED 1/4W D13 HER508 4 C116 680N 250V X8001.PCB_DATABASE_HISTORY MODEL(S):- PR2 Power Amp Header {Value} {C_Type} To_PowerAmp IEC_RECT W29:A 9 W29:B 9 W29:C 9 W29:D 9 10 W29:E 9 W29:F 9 W29:G 9 W29:H 9 W29:I 9 1 2 3 4 5 6 7 8 9 -RAW FILFIL+ HVCT GND +225V # 1 2 3 4 5 6 7 8 9 10 11 12 13 DATE 26-FEB-2007 20-MAR-2007 . 19-JUN-2007 29-AUG-2007 . . . 14-SEP-2007 18-SEP-2007 15-DEC-2008 D D YCS50, 50H, 90, 30 VER# DESCRIPTION OF CHANGE 1.00 2nd Proto . Moved R171 0.05in away from tab W11. Rotate C8 to allow eyelet insertion. . Added ClinchRepeats field . Renamed to X8001. Added jumpers for M1295/YCS90, 2.00 M1353/YCS50, M1357/YCS30. Imported fixture nodes. . Moved R171 0.05in more away from tab W11. Updated . pads on TO220 and Molex pins. Corrected X2 span. . 3.00 Move W11, D40 and R171 to eliminate clearance errors. . Moved W15 0.05" away from D12. Made rtvhole clearance 10. PC#7511, EXTEND THE BOARD AND ADD 5 TABS 4.00 N V N V SPLITTER Product SCREEN YCS50/90 Power Supply Power Supply PCB# X8001 Date: Fri Jan 23, 2009 Rev: V4.00 Filename: X8001V400sch.sch2002 B C D E F G H I J K 10 OUTX-F_CT 11 A 9 L M N O P Sheet 1 of 2 YsType: Q 11 LOC BREAK PANEL IN 2 ALONG THIS SCORE LINE BEFORE CLINCHING. SCORE PRI BLU PRI W9 22N 275V C112 6435 330U HVCT VIO W11 LINE W7 BLK RT V 150K 2.0W R171 HER508 6888 16AWG .4"Fins BLK W20 Choke Dummy TO220 Device C107 RT V C110 5958 RT V R212 RT V 8799 2K2 2.0W R219 470K 3692 5958 RT V 350V 22U R221 INSERT NORMAL NORMAL LARGE SOCKET WITH DIRECTION TAB C106 PCB W18 BLK Choke TO220+3692+8799-MTG CLINCH ORIGIN SOCKET SOCKET UPSIDE DOWN 5958 470K 5958 22U 350V RT V EYELET LEGEND C101 450V 10U 5959 RT V C109 W16 VIO Dummy PWR W4 W21 W5 350v 6574 R172 150K 2.0W SHORT AXIS W17 22U 350V 330U W8 W3 W6 WHT-YEL HT LINE WHT-BLK/YEL BLK-ORG Dummy W22W C86 RT V D40 C116 5266 680N 250V - CHASSIS RT V R181 C100 RT V BRN GRN W19 X1 22U 350V 6574 5959 R178 10K0 1.0W 1/2W 47K C87 C113 6451 250V 4N7 R180 R179 4007 R203 C93 R205 350v RT V ClinchRepeats - [email protected]@5.500 BlankSize - 18000x11000 X8001 V4.00 4K7 1.0W 5958 X2 YCS90 YCS50/50H YCS30 1.0W 10K0 D19 C91 D16 R183 1/2W 47K 250V 220N C88 5635 M1295 M1353 M1357 450V 10U 6888 HER508 5882 C92 5958 RT V R220 R214 5882 C83 470K 470K HI V C85 To_PowerAmp 3538 1M R182 4K7 HV HER508 6888 250V C90 220N 6888 W10 D15 HER508 22R 5.0W 25V 100U 350V 22U RED D13 RED U7 StepAndRepeat - [email protected]@5.500 W29 3692 100N W1 16AWG RED HER508 6888 W40 RT V 5618 C89 H1 RT V 6871 MC7915CT Neg15Reg . TO220 D11 8799 4007 YEL CT D14 HV W12 4007 X15 LV W14 3692 .4"Fins H2 C81 D12 5635 35V 1000U W15 GRYGRY YCS50/50H 470U 25V 22U 350V 4 C80 1000U 35V . TO220 U6 C84 100U 25V 100R 1.0W R185 8799 Pos15Reg MC7815CT 6872 RT V C82 100N W2 _ RT V 5635 LV_PS D9 4007 4007 1000U 35V 1 LV W13 100R 1.0W R184 RT V D10 M1353 V4.00 Pcb Mech X8001V4.00 Top Assy X8001V4.00 VCD LONG AXIS ORIGIN SEE LAYOUT DOCUMENTATION SEE LAYOUT DIAGRAM X8001.PCB_DATABASE_HISTORY MODEL(S):# 1 2 3 4 5 6 7 8 9 10 11 12 13 DATE 26-FEB-2007 20-MAR-2007 . 19-JUN-2007 29-AUG-2007 . . . 14-SEP-2007 18-SEP-2007 17-MAR-2009 D D PRODUCTION NOTES X8001(M1295, M1353, M1357) YCS50, 50H, 90, 30 VER# DESCRIPTION OF CHANGE 1.00 2nd Proto . Moved R171 0.05in away from tab W11. Rotate C8 to . allow eyelet insertion. . Added ClinchRepeats field 2.00 Renamed to X8001. Added jumpers for M1295/YCS90, . M1353/YCS50, M1357/YCS30. Imported fixture nodes. . Moved R171 0.05in more away from tab W11. Updated . pads on TO220 and Molex pins. Corrected X2 span. 3.00 Move W11, D40 and R171 to eliminate clearance errors. . Moved W15 0.05" away from D12. Made rtvhole clearance 10. 4.00 PC#7511, EXTEND THE BOARD AND ADD 5 TABS V N V N 1. BEFORE CLINCHING, BREAK PANEL IN 2 ALONG LINE WHERE INDICATED. 2. B.A. WILL PUT C86 AND C87 AS FOLLOWS BOARD M1295 M1353 M1357 C86 #5857, 470U #6574, 330U #____, 220U C87 #5857, 470U #6574, 330U #____, 220U M1295 M1295 M1353 M1357 YCS90 YCS50/50H YCS30 M1353 M1295 M1353 M1357 YCS90 YCS50/50H YCS30 M1357 M1295 M1353 M1357 YCS90 YCS50/50H YCS30 3. B.A. WILL CUT TWO OTHER JUMPERS 16AWG W16 Dummy Dummy .4"Fins W29 22U 350V R205 1.0W 10K0 RT V 450V 10U RT V R178 10K0 1.0W 450V 10U R220 R214 470K 470K C101 5959 R212 RT V X8001 V4.00 4K7 1.0W 5958 C110 470K 2K2 2.0W 350V 22U WHT W20 Choke PWR VIO W3 1000U 35V R181 22U 350V 350v R171 C109 5958 RT V X2 YCS90 YCS50/50H YCS30 5958 R203 C93 4K7 C86 5959 C100 R182 M1295 M1353 M1357 X1 6574 HER508 6888 3538 1M C88 5635 RT V R172 150K 2.0W 5618 C89 22U 350V TO220 R183 350V 22U RT V 330U D40 - BLK C92 RT V 150K 2.0W . . SHORT AXIS W17 WHT W6 Pos15Reg MC7815CT 6872 100N 6871 MC7915CT Neg15Reg . TO220 35V 1000U BRN PRI W9 HVCT VIO W11 LINE W7 BLK 5958 470U 25V To_PowerAmp RT V C83 C85 H1 3692 25V 100U YCS50H 5958 C107 RT V R219 470K RT V 350V 22U R221 C106 5958 WHTChoke W18 Dummy W4 W21 22N 275V C112 6435 . X15 330U RT V R180 R179 RT V RT V C116 5266 680N 250V W8 WHT LINE WHT 100N LV_PS 6574 W5 W15 W40 D19 C87 CHASSIS BLK PRI 1/2W 47K 4007 1/2W 47K 350v GRN W19 C113 6451 250V 4N7 W22 W1 C91 250V 220N 5882 6888 HER508 D16 H2 22R 5.0W 5882 6888 HER508 W10 D15 4044 D9 4007 4007 LV W13 HV W14 HV 250V 220N 100R 1.0W R185 8799 . D13 C84 U7 RED HER508 6888 C90 RT V .4"Fins 3692 8799 HI V 16AWG HER508 6888 U6 D11 YEL CT D14 4 CIR 4007 C81 5635 100R 1.0W R184 4 D12 4007 C82 RT V 25V 100U 3 RED RED RT V 5635 C80 2 W12 W2 1 GRYGRY LV 1000U 35V RT V D10 M1353 V4.00 CE WIRING 240 VAC WHITE WHITE CH1335U WHITE #3702 POWER #3698 AMP MODE 16AWG W16 Dummy Dummy .4"Fins W29 22U 350V R205 1.0W 10K0 RT V 450V 10U RT V R178 10K0 1.0W 450V 10U R220 R214 470K 470K C101 5959 R212 RT V X8001 V4.00 4K7 1.0W 5958 C110 470K 2K2 2.0W 350V 22U WHT W20 Choke PWR VIO W3 1000U 35V R181 22U 350V 350v R171 C109 5958 RT V X2 YCS90 YCS50/50H YCS30 5958 R203 C93 4K7 C86 5959 C100 R182 M1295 M1353 M1357 X1 6574 HER508 6888 3538 1M C88 5635 RT V R172 150K 2.0W 5618 C89 22U 350V TO220 Pos15Reg MC7815CT 6872 100N R183 350V 22U RT V 330U D40 . BLK C92 RT V 150K 2.0W - BRN W6 . WHT W17 . W8 WHT LINE WHT PRI W9 HVCT VIO W11 LINE W7 BLK 5958 470U 25V To_PowerAmp RT V C83 C85 H1 3692 25V 100U YCS50H 5958 C107 RT V R219 470K RT V 350V 22U R221 C106 5958 WHTChoke W18 Dummy W4 W21 22N 275V C112 6435 W5 W40 6871 MC7915CT Neg15Reg . TO220 35V 1000U 330U RT V R180 R179 RT V RT V C116 5266 680N 250V W22 X15 C87 CHASSIS BLK PRI D19 350v GRN W19 C113 6451 250V 4N7 1/2W 47K 4007 1/2W 47K 6574 6888 HER508 D16 100N LV_PS W1 C91 250V 220N 5882 SHORT AXIS W15 W10 D15 4044 D9 4007 4007 LV W13 HV W14 HV 6888 HER508 H2 22R 5.0W 5882 100R 1.0W R185 8799 . 250V 220N U6 D13 C84 U7 RED HER508 6888 C90 RT V .4"Fins 3692 8799 HI V 16AWG HER508 6888 RED RED 4 CIR D11 C81 5635 100R 1.0W R184 4 4007 C82 RT V 25V 100U 3 D12 4007 2 RT V 5635 C80 YEL CT D14 W12 W2 1 GRYGRY LV 1000U 35V RT V D10 M1353 V4.00 WHITE JA WIRING 100 VAC WHITE CH1335U #3698 POWER #3698 AMP MODE 16AWG W16 Dummy Dummy .4"Fins W29 22U 350V R205 1.0W 10K0 RT V 450V 10U RT V R178 10K0 1.0W 450V 10U R220 R214 470K 470K C101 5959 R212 RT V X8001 V4.00 4K7 1.0W 5958 C110 470K 2K2 2.0W 350V 22U WHT W20 Choke PWR VIO W3 1000U 35V R181 22U 350V 350v R171 C109 5958 RT V X2 YCS90 YCS50/50H YCS30 5958 R203 C93 4K7 C86 5959 C100 R182 M1295 M1353 M1357 X1 6574 HER508 6888 3538 1M C88 5635 RT V R172 150K 2.0W 5618 C89 22U 350V TO220 Pos15Reg MC7815CT 6872 100N R183 350V 22U RT V 330U D40 . BLK C92 RT V 150K 2.0W - BRN W6 . WHT W17 . W8 WHT LINE WHT PRI W9 HVCT VIO W11 LINE W7 BLK 5958 470U 25V To_PowerAmp RT V C83 C85 H1 3692 25V 100U YCS50H 5958 C107 RT V R219 470K RT V 350V 22U R221 C106 5958 WHTChoke W18 Dummy W4 W21 22N 275V C112 6435 W5 W40 6871 MC7915CT Neg15Reg . TO220 35V 1000U 330U RT V R180 R179 RT V RT V C116 5266 680N 250V W22 X15 C87 CHASSIS BLK PRI D19 350v GRN W19 C113 6451 250V 4N7 1/2W 47K 4007 1/2W 47K 6574 6888 HER508 D16 100N LV_PS W1 C91 250V 220N 5882 SHORT AXIS W15 W10 D15 4044 D9 4007 4007 LV W13 HV W14 HV 6888 HER508 H2 22R 5.0W 5882 100R 1.0W R185 8799 . 250V 220N U6 D13 C84 U7 RED HER508 6888 C90 RT V .4"Fins 3692 8799 HI V 16AWG HER508 6888 RED RED 4 CIR D11 C81 5635 100R 1.0W R184 4 4007 C82 RT V 25V 100U 3 D12 4007 2 RT V 5635 C80 YEL CT D14 W12 W2 1 GRYGRY LV 1000U 35V RT V D10 M1353 V4.00 WHITE N.A. WIRING 120 VAC #3698 POWER CH1335U WHITE #3698 AMP MODE SERVICE BULLETIN Tube Bias Adjustment 1. Adjust the amplifiers bias when in the 50W mode (YCS50/H) or 90W mode (YCS90). A speaker/load should be connected at all times when amplifier is powered. 2. Turn the amplifier on; allow it to warm up for 2-3 minutes. 3. Once the amplifier is warmed up, make sure the amplifier is out of Standby mode. Do not apply any input stimulus (signals etc.). Products Affected Traynor YCS50, YCS50H & YCS90 4. Using a meter set to measure mV DC, attach the negative (black) probe to the GND. Place the positive (red) probe on TP1 5. Adjust the Bias Trim Pot until you measure 75mv DC between GND and TP1. Measure the bias between GND and TP2. It should also measure as 75mv DC. (For the YCS90 the measurements should read 75mV on Tp1, Tp2, TP3 and TP4 which signifies that all tubes are matched). GND Bias Trim Pot YCS90 tubes TP1 TP2 Power Mode Switch TP3 TP4 U.S.A. Canada Voice: (905) 837-8481 Fax: (905) 837-8746 Voice: (716) 297-2920 Fax: (716) 297-3689 www.yorkville.com Yorkville Sound Inc. Yorkville Sound 550 Granite Court Pickering, Ontario L1W-3Y8 CANADA 4625 Witmer Industrial Estate Niagara Falls, New York 14305 USA SERVICE-BULLETIN-Bias-Adjust-YCS-00-1v0 • May 3, 2010 Printed in Canada REAL Gear. REAL People.