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

IMPORTANT SAFETY INSTRUCTIONS

safety-4v3.eps • Oct. 26/05

CAUTION:TO REDUCE THE RISK OF ELECTRIC SHOCK, DO

NOT REMOVE COVER (OR BACK).

NO USER SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIEDSERVICE PERSONNEL.

INSTRUCTIONS PERTAINING TO ARISK OF FIRE, ELECTRIC SHOCK,

OR INJURY TO PERSONS

Read InstructionsThe Owner’s Manualshould be read and understood before operation of your unit. Please, save these instruc-tions for future reference.PackagingKeep the box and packaging materials, in case the unit needs to be returned for service.WarningWhen 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. Precautions should be taken so that the grounding scheme on the unit is not defeated.

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.

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.

No naked flame sources, such as lighted candles, should be placed on the apparatus.

Power CordThe AC supply cord should be routed so that it is unlikely that it will be damaged. If the AC supply cord is damaged DO NOT OPERATE THE UNIT.

ServiceThe unit should be serviced only by qualified service personnel.

AVIS:AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE,

N’ENLEVEZ PAS LE COUVERT (OU LE PANNEAU ARRIERE)

NE CONTIENT AUCUNE PIECEREPARABLE PAR L’UTILISATEUR.

CONSULTEZ UN TECHNICIEN QUALIFIEPOUR L’ENTRETIENT

INSTRUCTIONS RELATIVES AU RISQUEDE FEU, CHOC ÉLECTRIQUE, OUBLESSURES AUX PERSONNES

Veuillez Lire le ManuelIl contient des informations qui devraient êtres comprises avant l’opération de votre appareil. Conservez S.V.P. ces instructions pour consultations ultérieures.EmballageConservez la boite au cas ou l’appareil devait être retourner pour réparation.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.

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.

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.

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’AlimentationÉvitez d’endommager le cordon d’alimentation. N’UTILISEZ PAS L’APPAREIL si le cordon d’alimentation est endommagé.

ServiceConsultez un technicien qualifié pour l’entretien de votre appareil.

K4 Parts List 5/18/2006YS # Description Qty. YS # Description Qty. YS # Description Qty. YS # Description Qty.

6554 BLUE 3MM LED 3V9 20MA TLHB440VISHAY 1 5281 _10U 16V 20%CAP T&R RAD .2"NP 2 2011 1/4W 11R3 1%FLAME PROOF T&R RES 2 8741 4-40 X 1/2 PAN PH MS JS500 26405 RED 3MM LED 1V7 5MA BRT 5 5282 _10U 16V 20%CAP T&R 5X7MM .2"NP 2 4815 1/4W 12R 5% T&R RES 4 8842 #4 X 5/16 PAN QUAD TYPE A JS500 BLK 86408 GRN 3MM LED 1V9 5MA FROSTED 1 5629 _10U 160V 20%CAP BLK 10X13MM EL 9 4612 1/2W 18R 5% T&R RES 2 8807 6-32 X 5/16 PAN PH MS JS500 26425 BAV21 200V 0A25 DIODE T&R 6 5945 _10U 63V 20%CAP T&R RAD .2"EL 7 4812 1/4W 18R 5% T&R RES 1 8801 6-32 X 3/8 PAN PH TAPTITE JS500 176825 1N4148 75V 0A45 DIODE T&R 41 5260 _22U 50V 20%CAP T&R RAD .2"EL 2 4618 1/2W 22R 5% T&R RES 3 8829 6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA 226438 1N4007 400V 1A0 DIODE T&R 9 5631 _22U 50V 20%CAP T&R 6X7MM .2"EL 10 4817 1/4W 47R 5% T&R RES 4 8761 6-32 X 1/2 PAN PHIL MS ZINC CLEAR 46434 6A2 200V 6A0 DIODE 8 5265 _68U 25V 20%CAP T&R RAD .2"EL 2 4811 1/4W 68R 5% T&R RES 1 8806 6-32 X 1/2 PAN PH TAPTITE JS500 66733 BAT85 30V 0A2 DIODE SCHTKYT&R 10 5879 100U 16V 20%CAP T&R 8X7MM .2"EL 4 4912 1/4W 75R 5% T&R RES 1 8878 #6 X 2" PAN PHIL TYPE A JS500 BLACK 46439 1N5225B 3V0 0W5 ZENER 5% T&R 1 5610 220U 160V 20%CAP BLK 16X36MM EL 3 4852 1/4W 100R 5% T&R RES 4 8722 #8 X 1" PAN QUAD TYPE AB B/O 206461 1N5240BRL 10V0 0W5 ZENER 5% T&R 4 5621 470U 63V 20%CAP BLK 12X25MM EL 2 4659 1/2W 150R 5% T&R RES 6 8809 10-32 X 1/4 PAN PH TAPTITE JS500 86822 1N4745A 16V0 1W0 ZENER 5% T&R 2 5616 3300U 50V 20%CAP BLK 18X35MM EL 4 4859 1/4W 150R 5% T&R RES 2 8734 #10 X 1/2 PAN PH TYP A BRITE NICKEL 66463 1N5251BRL 22V0 0W5 ZENER 5% T&R 1 4032 _10K 1B LIN 9.5MM HORIZONTAL STP38 2 4857 1/4W 220R 5% T&R RES 10 8753 #10 X 1/2 PAN PH TYPE A JS500 BLACK 46871 MC7915CT TO220 N 15V0 REG V2 1 4480 _10K 1B LIN 12MM HOR ST P27 1 4770 1/4W 249R 1% T&R RES 4 8756 #10 X 3/4 PAN PH TYPE A BLACK OXIDE 306872 MC7815CT TO220 P 15V0 REG V1 2 4479 _20K 05C R/A 12MM HOR ST P27 2 4867 1/4W 270R 5% T&R RES 10 8781 #10 X 7/8 FLAT PHIL TYPE A JS500BLK 45101 BC550C TO92 NPN TRANSISTOR T&R 5 4482 _20K 05C R/A 9.5MM HORIZONTAL STP38 1 4986 1/4W 270R 5%MINI T&R RES 2 8833 10-32 X 7/8 HEX CAP GRD 5 JS500 35102 BC560C TO92 PNP TRANSISTOR T&R TB 9 4478 _50K 1B LIN 12MM HOR ST DET P27 6 4872 1/4W 390R 5% T&R RES 1 8727 #10 X 1" PAN PH TYPE A JS500 BLACK 25103 MPSA06 TO92 NPN TRANSISTOR T&R TA 1 4477 100K 1B LIN 12MM HOR ST P27 1 4821 1/4W 470R 5% T&R RES 2 8843 10-32 X 1 1/8 FLAT PH MS JS500 25104 MPSA56 TO92 PNP TRANSISTOR T&R 7 4529 470R TRIM POT 1 4799 1/4W 562R 1% T&R RES 2 8786 10-32 X 1 1/4 PAN QD MS JS500 BLACK 45107 2N5551 TO92 NPN TRNSISTR DARL T&RTA 2 3976 SNAP ON 0.843" INSULATING BUSHING 1 4743 1/4W 681R0 0.1% *** T&R RES 6 8770 1/4-20 X 1 5/16 TRUSS PH MS JS500 55108 2N5401 T092 PNP TRNSISTR DARL T&RTA 2 8521 RUBBER BUMPER WITH WASHER VERYSMALL 6 4873 1/4W 680R 5% T&R RES 4 8736 5/16-18X2-3/4 GRD 5 HEX BOLT JS500 15109 MPSA43 TO92 NPN TRANSISTOR T&R 4 3463 CLIP 110X020 18-22AWG DISCO/INSL 2 4822 1/4W 820R 5% T&R RES 2 8608 NYLON SPACER .200 OD .145 ID .110 L 45106 MPSA63 TO92 PNP TRNSISTR DARL T&RTA 3 3489 CLIP 250X032 18-22AWG DISCO/INSL 10 4726 5.0W 1K 5% BLK RES 2 8866 #6 NYLON SPACER OD.250XID.140X.187 65119 2N5638 TO92 NCH JFET T&R TC 3 3490 CLIP 250X032 14-16AWG DISCO/INSL 11 4823 1/4W 1K 5% T&R RES 26 3751 SNAP IN 5/16 SPACER RICHCO 45122 J109 TO92 NCH JFET T&R TC 1 3491 CLIP 205/187X020 18-22AWG DISCO/INS 10 4981 1/4W 1K 5%MINI T&R RES 7 7405 5" 8R 30WPGM SPEAKER SEALED BACK 26774 BD139 TO126 NPN TRAN TG 2 3601 RING TERMINAL 16AWG WIRE & #8 SCREW 3 6110 1/4W 1K0 1%MINI MF T&R RES 5 7388 12" 2R 170W WOOFER POLY/RUB SRND 16787 BD237 TO126 NPN TRAN TG 1 3682 250 MALE PCB TAB REEL 23 4889 1/4W 1K3 5% T&R RES 1 8818 3/4 OD X 3/8 ID X .080 THICK WASHER 26788 BD238 TO126 PNP TRAN TG 1 3498 1/4" JCK PCB MT HORZ 5 4824 1/4W 1K5 5% T&R RES 4 8820 #8 FLAT WASHER JS500 26815 MJF6388 T221D NPN TRNSISTR DARL TJ 1 3918 1/4" JCK PCB MT HORZ SLIM W/SCREW 8 4683 1.0W 1K8 5% T&R RES 1 8817 #10 FLAT WASHER FOR 3/16" BOLT 56902 TIP142 TO218 NPN TRAN DARL TE 2 3460 RCA DUAL PCB MT VERT GOLD .475" 1 4825 1/4W 1K8 5% T&R RES 3 3393 5POS 2S NONSHORTING HORZ ROT SWT 16903 TIP147 TO218 PNP TRAN DARL TE 2 3922 XLR FEML PCB MT HORZ THIN SNAP-IN 1 4808 1/4W 2K 5% T&R RES 23 3425 DPDT PUSH SW PCMT BREAK B4 MAKE 36909 MJ21196 TO3 NPN TRANSISTOR TH 1 3923 XLR MALE PCB MT HORZ MTHOLE-V SNAP 2 6113 1/4W 2K 5%MINI T&R RES 4 3587 DPDT ROKR SW QUIK 250"AC/PWR ON-OFF 16910 MJ21195 TO3 PNP TRANSISTOR TH 1 3451 EYELET SMALL 0.089 OD PLATED 32 4919 1/4W 2K05 1%-NO SUBS- T&R RES 1 3732 9 PIN PC MOUNT TUBE SOCKET BE 26804 MC33079P IC QUAD OP AMP 11 3414 INTERNATIONAL PC MOUNT FUSEHOLDER 6 4847 1/4W 2K2 5% T&R RES 10 12AX7 12AX7 DUAL TRIODE PREAMP TUBE 26840 MC33078P IC DUAL OP AMP 6 2427 5.0 AMP SLO-BLO .25X1.25 FUSE 3 4714 1/4W 2K21 1% T&R RES 4 CH1339 K4,K2 120V 60HZ T'RD 16882 TL072CP IC FET DUAL OP AMP 3 3856 FAN 80MM X 80MM 39CFM 12VDC 200MA 2 4883 1/4W 2K49 1% T&R RES 26884 NE5532N IC DUAL OP AMP 10 8565 BAR HANDLE ALL METAL 2 4805 1/4W 2K87 1% T&R RES 16745 LM13600N IC XCONDUCTANCE AMP 1 8604 10-32 T NUT 4 4804 1/4W 3K 5% T&R RES 126936 4007 IC COMPLIMENTARY PAIRS 2 7286 _8R 30W 4.75"TWEETER 2 4826 1/4W 3K3 5% T&R RES 216860 VTL5C8 OPTO-COUPLER 1 3501 B52200F006 COMP WASH #4 SMALL 2 5028 1/4W 3K74 1% T&R RES 26467 10K 10% THERMISTOR NTC TO-92 3 3719 DUAL XSISTOR TO218 SPRING YEL PLTD 2 4774 1/4W 4K12 1% T&R RES 55400 _10P 100V 10%CAP T&R BEAD NPO 2 3977 QUAD XSISTOR TO220SPRING YELLOWZINC 1 4910 1/4W 4K3 5% T&R RES 25402 _15P 100V 10%CAP T&R BEAD NPO 2 8609 VINYL CAP 0.250" X 1/2" BLK. 2 4681 1.0W 4K7 5% T&R RES 25404 _27P 100V 10%CAP T&R BEAD NPO 1 8889 RUBBER GROMMET #2183-034-BLK 3 4827 1/4W 4K7 5% T&R RES 145406 _33P 50V 10%CAP BLK BEAD NPO 3 3645 AC SOCKET RECEPTACLE WITH 0.250 TAB 1 4639 1/4W 4K99 1% T&R RES 205408 _47P 100V 10%CAP T&R BEAD NPO 1 3801 5/8" BUMPER BUTTON BLACK 1 6128 1/4W 4K99 1%MINI MF T&R RES 25410 100P 100V 10%CAP T&R BEAD NPO 11 3803 NYLON SECUR-A-TACH MINI PLASTIC TIE 1 4893 1/4W 5K1 5% T&R RES 45412 220P 100V 10%CAP T&R BEAD NPO 18 3810 4" NYLON CABLE TIE 15 4862 1/4W 5K6 5% T&R RES 15201 470P 100V 5%CAP T&R RAD CER.2"NPO 2 8399 �BASSMASTER KNOB, NICKEL PLATED 10 4800 1/4W 10K0 1% T&R RES 145420 680P 50V 10%CAP T&R BEAD NPO 13 8504 CORNER, 2 LEGS NOTCED LIP NICKEL 4 4829 1/4W 10K 5% T&R RES 625206 __1N 400V 5%CAP T&R RAD .2"FLM 8 8636 BUTTON KNOB FLAT BLACK 3 4983 1/4W 10K 5%MINI T&R RES 35422 __1N 50V 10%CAP T&R BEAD NPO 4 8400 BASSMASTER KNOB, NICKEL W/STOPPER 1 6116 1/4W 10K0 1%MINI MF T&R RES 125274 __2N2 200V 5%CAP T&R RAD CER.2"NPO 2 3428 8' 3/18 SJT AC LINE CORD REMOVABLE 1 4773 1/4W 12K1 1% T&R RES 15209 __4N7 250V 5%CAP T&R RAD .2"FLM 7 8264 YBA/YCV LOGO EMBOSSED ALUMINUM 1 4775 1/4W 14K0 1% T&R RES 26451 __4N7 250V 20%CAP BLK 'Y' 10MM AC 1 3538 24 PIN BREAKAWAY LOCK .156 0.167 4830 1/4W 15K 5% T&R RES 25433 __5N6 50V 10%CAP T&R BEAD X7R 1 3549 TRIFURCON TERM .156 4 4771 1/4W 17K8 1% T&R RES 25204 _10N 100V 10%CAP T&R RAD .2"FLM 2 3558 TERM HOUSING 4 CIR .156/RAMP 1 4885 1/4W 20K 5% T&R RES 105834 _10N 250V 20%CAP BLK RAD POLY FLM 2 3654 PCB CONN 4 CIR .100 LOCKING 2 6123 1/4W 20K0 1%MINI MF T&R RES 255301 _12N 50V 10%CAP T&R BEAD X7R 3 3668 4 CIR CHASSIS MOUNT HDR .156 1 4832 1/4W 22K 5% T&R RES 75210 _22N 100V 10%CAP T&R RAD .2"FLM 6 3672 6 CIR CABLE HOLDER .098 4 4840 1/4W 33K 5% T&R RES 75304 _22N 50V 10%CAP T&R BEAD X7R 2 3676 8 CIR CABLE HOLDER .098 2 4834 1/4W 47K 5% T&R RES 96435 _22N 275V 20%CAP BLK 'X2' 15MM AC 2 3903 PCB CONN 4 CIR BOTTOM .156 2 4803 1/4W 49K9 1% T&R RES 45306 _33N 50V 10%CAP T&R BEAD X7R 14 5989 4 CIR CABLE HOLDER .098 6 4895 1/4W 51K 5% T&R RES 45223 _39N 100V 10%CAP T&R RAD .2"FLM 2 8701 4-40 KEPS NUT ZINC 2 4836 1/4W 68K 5% T&R RES 25226 _68N 100V 5%CAP T&R RAD .2"FLM 8 8760 6-32 KEPS NUT TIN PLATED 4 4772 1/4W 82K5 1% T&R RES 25310 _68N 50V 10%CAP T&R BEAD X7R 2 8800 6-32 KEPS NUT ZINC 11 4838 1/4W 100K 5% T&R RES 295212 100N 63V 5%CAP T&R RAD .2"FLM 50 8841 10-32 KEPS NUT ZINC 3 6120 1/4W 100K 5%MINI T&R RES 25228 100N 100V 5%CAP T&R RAD .2"FLM 6 8890 1/4-20 CAGE NUT C79-88142027 4 4776 1/4W 113K 1% T&R RES 45314 100N 50V 10%CAP T&R BEAD X7R 9 8797 5/16-18 KEPS NUT JS500 1 4796 1/4W 180K 5%MINI T&R RES 25229 150N 63V 10%CAP T&R RAD .2"FLM 2 3823 TO-220 THERMO PAD SMALL HOLE 2 4849 1/4W 180K 5% T&R RES 25231 220N 63V 10%CAP T&R RAD .2"FLM 2 3916 TO3 SIL-PAD REPLACES MICA 2 4865 1/4W 390K 5% T&R RES 15318 220N 50V 10%CAP T&R BEAD X7R 1 4022 ELASTOMER PAD - 2-TO218 / 4-TO220 3 4843 1/4W 470K 5% T&R RES 25233 330N 63V 5%CAP T&R RAD .2"FLM 8 8581 CUSTOM PBL TRANSISTOR SPACER 3 4874 1/4W 560K 5% T&R RES 25234 470N 63V 10%CAP T&R RAD .2"FLM 8 4597 22AWG STRAN TC WIR JMP 6 4844 1/4W 1M 5% T&R RES 145322 470N 50V 10%CAP T&R BEAD Z5U 1 4599 22AWG SOLID SC WIR T&R JMP 245 4888 1/4W 4M7 5% T&R RES 15255 __1U 63V 20%CAP T&R RAD .2"EL 1 5299 24AWG SOLID SC WIR RAD JMP 6 4751 1/4W 22M 5% T&R RES 25256 __1U 63V 5%CAP T&R RAD .2"FLM 10 4719 5.0W 0R18 5% BLK RES 2 4036 _8" 4C-28AWG RIB 1 W/LCK HDR 098 25257 __2U2 63V 20%CAP T&R RAD .2"EL 5 4729 5.0W 0R27 5% BLK RES 4 3623 17" 4C-26AWG RIBBON CABLE 0.1" 15258 __4U7 63V 20%CAP T&R 8X7MM .2"EL 2 2006 1.0W 1R 5%FLAME PROOF T&R RES 3 4040 5.0" 6C-26AWG RIBBON CABLE 0.1IN 15933 _4U7 100DC 10%CAP BLK RAD POLYE FLM 2 4866 1/4W 4R7 5% T&R RES 2 4041 10" 6C-26AWG RIBBON CABLE 0.1IN 15259 __4U7 63V 20%CAP T&R RAD .2"EL 22 4875 1/4W 10R 5% T&R RES 2 4037 5.5" 8C-26AWG RIBBON CABLE 0.1IN 1.5

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

15"B

LAC

K

18"R

ED

#7388

K4

R-MID

#7405

#7286

15"B

LAC

K

24’WH

ITE

24’YE

LLOW

18"W

HITE

15"O

RA

NG

E

19"B

RO

WN

L-MID

#7405

#7286

L-TWEETER R-TWEETER

24"BLA

CK WOOFER

15"BLACK

3491

RTV

RED

3489

3463 3491 3463

3489

WHITE

RTV

3491 3491 3491

3491

3491 3491 3491

3489

BLACK WHITE

BROWN

3489

3489

3490

C93 5933

4U7100V

3489

YELLOW

3491

ORANGE

100V4U7

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 41

Product

Date: Rev: YsType: CSA#M1239-1v00-sch.sch2002

M1239CH-1 INPUT-1Wed Mar 01, 2006 V1.00

K4 PREAMPof

Filename:

PCB# Sheet 41

Product

Date: Rev: YsType: CSA#M1239-1v00-sch.sch2002

M1239CH-1 INPUT-1Wed Mar 01, 2006 V1.00

K4 PREAMP

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

W24:C 4

W24:A 4

W29:C4

W29:A4

IN FROM POWER BOARD

W9:C 4

W9:A 4

C47100V220P

R21/4W

.10K

W10:C4

W10:A4

C3100V220P

D64148

W23:G8

W23:E8

W23:B8

C186250V4N7

X136

C3650V680P

4148D5

MC14007

C9563V330N

C9763V470N

R1281/4W

.3K

C9263V 4U7

C96100V10N

C8963V 4U7

MC33079

W24:D 4

W24:B 4

W29:D4

W29:B4

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

W9:B 4

W9:D 4

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

W10:B4

W10:D4

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

1/4W

.10KR322

4148

D2

W23:H8

W23:F8

W23:C8

W23:A8

W23:D8

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

C20463V4U7

1/4W 100K

R29

.

I/P SELECTOR

S1:A3425

4148

D7

8V

+4

V-

U6:C

U6:A

MC33078P

1/4W 1K

R21

MINILD1

RED 6405

R1351/4W

.10K

C8663V470N

R121

1/4W 2K2

.

R1111/4W

.3K

C82100V39N

R1101/4W

.3K

C9363V 4U7

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

MC33078

D16

4007

D17

4007

R170

1/4W 1K5

.

1/4W

.

R1741K8

C100100V100N

C99200V2N2R1311/4W

.2K

R132

1/4W 5K1

.

R1241/4W

.10K

NE5532N

R175

1/4W 100K

.

Q65102

TO92

BC560C

R2411/4W

MINI2K

R167

1/4W 100K

.

LIVEC91

63V 4U7

R166

1/4W 100K

.

R165

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

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

2 1 5 4

3

NP

MC14007U7:A

50VC23

22U

160VC15

10U

1/4W113K

R23

.

R571/4W

.2K

1/4W

.

R319

220R

R1641/4W

.1M

4477

P1:AD

B LIN100K

GAIN

B CTO-92

MPSA63

E

MPSA06

C83100V

100N

1/4W100K

R209

.

C85250V

4N7

R1181/4W

.2K

U2:C

MC33079P

TO92

MPSA06

Q75103

D151N5225B

0W53V0

R177

1/4W 100K

.

R2581/4W

MINI1K

R120

1/4W 20K

.

U3:B

MC33079P

R2401/4W

MINI1K

C9063V 4U7

S3:A3393

VOICING SELECT

1/4W

.

R168100K

W22:G 8

W22:D 8

RIBBON CABLE W22:B 8

RIBBON CABLE

R2021/2W

.18R

R1261/4W

.10K

C200100V220P

PIANO

W25:B4

W25:C4

W25:A4

W25:D4 W22:H 8

W22:E 8

W22:C 8

W22:F 8

W22:A 8

V1:C

100VC51

100N

C32100V22N

C52160V 10U

Q25107

TO92

2N5551

R2981/4W

.4K99

R2011/4W

.4K99

MC33078PU13:A

1112

9

10

P N

U7:CMC14007

C12663V4U7

C4463V 330N

R1981/4W

.1K

1/4W10K0

R62

.

C4100V220P

R351/4W

.3K

1/4W.

1K

R321

R55

1/4W 10K

.

C3750V680P

C5463V470N

4478P3:A

D50K

B LIN

TREBLE

C3450V

33N

4478P2:A

D50K

B LIN

MID

R313

1/4W 20K

.

C2163V 2U2

C1050V33N

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

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

ORGAN

M

4032P13:A 10K

LIN

LEAD-GAIN

1/4W20K0

R6

MINI

1/4W20K0

R5

MINI

U1:A

MC33079P

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

6936_PC

C3150V33N

1/4W 2K21

R33

.

R314

1/4W 1K

.

100VC40

100P

LD2

GRN 6408

C128250V

4N7

8V

+4

V-

U16:C

U16:A

NE5532N

6

14

7

13

8N

P

U7:B

MC14007

U2:D

MC33079P

U3:C

MC33079P

U3:A

MC33079P

4V

+11

V-

U3:E

R1121/4W

.3K

ST R J10

- - -

FOOT/SW

REF KNOBPART#MODEL(S):-

FUNCTION

RR

P13

R

P10,P11P12P4

S3

FF

LEAD-GAIN

F

CH-2 &CH-3 GAINMASTEROVERDRIVE

KK

9922

K

839983999922

839983998399

8400

PP

4032

P

447944804482

4478

3393

POT LIST

NN

NNN

NNN

NNN

{NEW}N

K4

VOICING SELECT

P5A&B,P7A&B BASS

P1 CH-1 GAIN 4477 8399

P2A&B,P8A&B MID

P3A&B,P9A&B TREBLE

4478

4478

U3:D

MC33079P

NE5532NU22:B

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

V

1V00

VV

VV

VV

VV

D

D

D

D

MAY-10-2005

N

N

N

N

FIRST LAUNCH

K4

DD

DD

DD

DD

NN

NN

NN

NN

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 42

Product

Date: Rev: YsType: CSA#M1239-1v00-sch.sch2002

M1239CH-1 INPUT-2Wed Mar 01, 2006 V1.00

K4 PREAMPof

Filename:

PCB# Sheet 42

Product

Date: Rev: YsType: CSA#M1239-1v00-sch.sch2002

M1239CH-1 INPUT-2Wed Mar 01, 2006 V1.00

K4 PREAMP

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

R2991/4W

.4K99

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

.

C60

63V

1U

R82

1/4W 20K

.

CHANNEL-1 INPUT-2

D

05C R/A

P4:B

4482

20K

OVERDRIVE

Q45108

TO92

2N5401

R84

1/4W 1K5

.

R29

71/

4W. 2K

R851/4W

.4K99

C6263V 330N

R101/4W

.10K

R111/4W

.10K

R121/4W

.10K

R2001/4W

.4K99

1/4W

. R1164K99

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

1/4W

.10KR328

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

R3201/

4W 220R.

C5750V33N

R951/4W

.3K3

R961/4W

.3K3

R971/4W

.100K

R981/4W

.4K7

C20563V4U7

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

C12063V 4U7

R182

1/4W 100K

MINI

R238

1/4W 100K

.

8V

+4

V-

U26:C

R1011/4W

.220R

R102

1/4W 20K0

MINI

160VC66

10U

R831/4W

.1K

100VC6

220P

8V

+4

V-

U27:C

R1031/4W

.10K

100VC7

220P

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

2 1 5 4

3

NP

MC14007U14:A

160VC16

10U

R1051/4W

.2K

R1861/4W

.1M

4477

P1:BD

B LIN100K

GAIN

C118100V

100NC119

250V

4N7

R1561/4W

.2K

U9:C

MC33079P

R157

1/4W 20K

.

U10:B

MC33079P

R181

1/4W 100K

.

R183

1/4W 100K

.

VOICING SELECT3393

S3:B

1/4W.

1K

R325

100V22NC125

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

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

DP5:B50K

B LIN

BASS

4478

C222U2

63V

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

ORGAN

R185

1/4W 100K

.

C61

63V

10U

M

4032P13:B 10K

LIN

LEAD-GAIN

1/4W20K0

R15

MINI

1/4W20K0

R16

MINI

U8:A

MC33079P

U8:D

MC33079P

U27:A

NE5532N

8V

+4

V-

U5:C

U26:B

NE5532N

C7663V

1UR1091/4W

.1K

U8:C

MC33079P

R1041/4W

.100R R163

1/4W

.10K

C7750V33N

R312

1/4W 1K

.

V2:BVal

2X_TRIODE_HCT

100V

100PC131

U16:B

NE5532N

R1881/4W

.10K

U9:D

MC33079P

U10:A

MC33079P

U10:C

MC33079P

4V

+11

V-

U10:E

R1551/4W

.3K

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 43

Product

Date: Rev: YsType: CSA#M1239-1v00-sch.sch2002

M1239CH- 2 & 3Wed Mar 01, 2006 V1.00

K4 PREAMPof

Filename:

PCB# Sheet 43

Product

Date: Rev: YsType: CSA#M1239-1v00-sch.sch2002

M1239CH- 2 & 3Wed Mar 01, 2006 V1.00

K4 PREAMP

1/4W

.R2052K49

1/4W

.R2044K7

1/4W

.R2074K7

W16

4148

D21

4148

D251/

4W

.

R2064K7

CHANNEL-3

CHANNEL-2

R401/4W

.47K

R1951/4W

.820R

R1941/4W

.820R

R1971/4W

.4K99

R1911/4W

.4K99

W11:E 6

W11:C 6

C13516V10U

R2341/4W

.180K

C15550V100N

R2781/4W

.4K99

R2801/4W

.470R

R2881/4W

.10K0

R2661/4W

.270R

W19:B4

C175100V

100NC174

100V

100NC177

100V

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

W14 W14_

C3063V 10U

W16_

C2963V 10U

4148

D9

4148

D10

R1901/4W

.4K99

W11:F 6

W11:B 6

W11:D 6

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

R25

21/

4W. 1K

C16250V

12N

R2931/4W

.100R

R2811/4W

.470R

1/4W

R284681R0

0.1%

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

R2901/4W

.10K0C16322U50V

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

W19:C4

W19:A4

W19:D4

C171100V

100NC170

100V

100N

C19350V

100N100V

C11100N

C173100V

100N

R2261/4W

MINI20K0

100VC25

100NC42

100V

100N

8V

+4

V-

U15:C

C183100V

100NC182

100V

100N

R2311/4W

.49K9

C133400V

1N

C75400V

1N

C80100V

100NC168

100V

100N

C189100V

100N

8V

+4

V-

U24:C

W11:A 6

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

C14550V33N

C14050V680P

R216

1/4W 20K0

MINI

R224

1/4W 20K0

MINI

1/4W10R

R295

.

C165

22U50V

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

OUT TO M1128POWER-AMP

R1931/4W

.4K12

R1921/4W

.4K12

R2831/4W

0.1%681R0

W12:C6

W12:A6

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

R1891/4W

.4K99

U21:D

MC33079P

MC33079P

U21:C

W12:F6

W12:D6

W12:B6

W12:E6

1/4W.

10K

R315

R2491/4W

.1K

U4:B

MC33078P

C15363V 4U7

U4:A

MC33078P

R25

51/

4W. 1K

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

R2291/4W

MINI20K0

C19250V

100N C78100V

100NC13

100V

100N

C172100V

100NC180

100V

100NC178

100V

100NC188

100V

100N

100VC206

100N

S TRJ11

---

RIGHT

R

LJ6

3460

GOLD .475

C27100V100P

S TRJ9

---

LEFT

MC33079P

U21:B

R2481/4W

.1K

8V

+4

V-

U4:C

C15650V100N

U18:A

NE5532N

8V

+4

V-

U18:C

R2871/4W

0.1%681R0

S2:A

GROUND LIFT3425

U18:B

NE5532N

R2251/4W

.100K

U20:B

MC33079P

63VC159

4U7

RIBBON CABLE

U19:C

MC33079PD

4479P11:A20K

05C R/A

CH3-GAIN

U19:A

MC33079P

J8:A

3922MIC

U20:D

MC33079P

U19:B

MC33079P

U19:D

MC33079P

S TRJ5

---

I/P LEFT MONO

S TRJ7

---

I/P RIGHT

ST R J12

- - -

HEADPHONE

MC33079P

U20:C

VCD v1.00M1239Top

v1.00Top M1239

.020"

.005"

.008"

.012"

LOC

BEC

.020"

.005"

.008"

.012"

.020"

.005"

.008"

.012"

63

63

GAG

ER

OU

TE

0.01"/HO

LE

CLINCH

ORIGIN LONG AXIS

SHO

RT

AXIS

INSERT

ORIGIN

v1.00M1239

Pcb Mech v1.00

Pcb Mech

M1239

BlankSize - 19100x10400

TAB

NORMAL

SOCKET

SOCKET WITH DIRECTION

NORMAL LARGE

SOCKET UPSIDE DOWN

1

1

M1239Top Assy

Top Assy v1.00

MC14007

MC33079

Layers for wires

v1.00

NE5532N

M1239

MC33078P

PRODUCTION NOTES---------------------------------1. CUT METAL PIN OF

J8 , J13 AND J14 XLR2. RTV ALL CAPACITORS

GUIDEETCH

-

+

TIP

RING

SLEEVE

TIP-SW

SL-SW

RING-SW

7

E CBTO-92

MPSA63MPSA06

77

GUIDEETCH

1

GUIDEETCH

GND

WHT RED

21

21

FUNCTION KNOBREFMODEL(S):-

PART#

RRR

P4P13P1

P3A&B,P9A&BP10,P11P12

S3P2A&B,P8A&BP5A&B,P7A&B

FFF

OVERDRIVELEAD-GAINCH-1 GAIN

CH-2 &CH-3 GAINMASTER

VOICING SELECT

PPP

448240324477

447844794480

339344784478

NNN

NNN

NNN

NNN

KKK

992299228399

839983998399

840083998399

{NEW}

POT LISTK4

BASSMID

TREBLE

2

Break thisconnection here.

1

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

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

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

12

9

6

3

#

13

1110

54

87

21

DATEMODEL(S):-

VER# DESCRIPTION OF CHANGE

DDD V

VVVV

DD

NNNNN

DDD V

VV

K4

VVVV

DDDD N

NNN

NNN

M1239.PCB_DATABASE_HISTORY

MAY-10-2005 FIRST LAUNCH1V00

2G

2K

1 9

1K

1G4

H6

2

3

H

8

7

2P

5

HT

1P

POWER

I/P SELECTOR

MASTER

CH-1 I/P -1 LEFT

OVERDRIVE

FOO

T/SW

HE

AD

PH

ON

E

GR

OU

ND

LIFT

RIG

HT LIN

E O

UT

LEFT LIN

E O

UT

CH1-GAIN BASS TREBLE

VOICING SELECT

LEAD

MIC

TREBLEBASS MID 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 LEFT RIGHT

MID CH2-GAIN

3489

5629

4036

5989

6554

3602

36724041

5629

5629

6435

36724041

3425

5629

6405

4037

6405

4480

6405

3918

4482

3489

5629

3498

5989

3498

40365989

5989

3676

4037

59893623

3460

3489

56295629

5629

3732 3732

3425

39233923

4477 4478

4037

4478

3393

3425

39226408

4478

4478

4478

4479

3623

4032

3918 3918 3918 3918 3918 3918 3918

3676 4037

5989

4478

4479

1M22N

17K8

113K

51K

100K22N

1K5

51K

2K

2K2

22N

1M51K

20K

100K113K

22N33N

1N

49K9

20K0

680P470P

10K

10K 10K

20K0

1K

100N

4148 4148

1N

220P 4U763V

20K0 4148

20K0

220P

100R100K

330N

4K99

1K

2K

470N1K1K

1N4N

7100N

220P

1K8

10K

100K100K

2K2

100N

2K 100K100N

3K

1N

220P 220P

470N

10N

4M7

3K3

3K74

4K99

4K99

4K99

100P

4148

4K99

820R

270R

820R1N

10K

220R

681R

0

4148681R

0

220P3K

41484K

99

1K270R

10K

100N

1K270R

12N

41484148

10K

1/2W18R

2K21

14K0

680P

2K21

3K3K

10K0

100K

10K 150N

20K0

14K0

10K20K

0

10K3K

4K7

3K10K

1K

20K0

1K5K

1

220P3K

3K3

10K

33N

3K3

10K

1K220P

20K0

1K3K

3 3K3

220R3K

3

2K

10K680P

680P

2K680P

33K100K

10K100K

100K

220P

220P

33N100K

2K10K

10K

5K1

10K1K

470N

220R2K

100R10K

10K

2K

1K10K

4007

2K

10K0

180K

2K

20K33N

4K7

220R

1K

10K

10K4K

7

100N4K

99100K

3K3

100K33N

4K7

33N

41484148

4K7

4K7

680P

2K3K

3

3K3

680P

220P562R

3K3

100P

4K12

180K

4148

270R

4148

68K

47K1K

270R

220P270R

270R

49K9

1K20K

010K

470R

20K0

4K99

20K0

681R0

10K

20K0

100P4148

20K0

1K0

1K

41484148

681R0

10R

10K0

220N

100N

100N

1K

4N7

100N

100N

100N

100N

100N

681R0

100K

2N5551

1U

20K0160V10U

49K9

113K

1M

10R

50V22U

17K810K

113K

1M220N

50V22U

22N

4U763V

4U763V

100N

4N7

39N

2U263V

1K5

2N5551

2N5401

33K

51K

1U

1M

33N

100K

100N

10N

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

100K

4U7

63V

3K

2K

4K99

220R

3V0

20K

100N

4U763V

39N2U263V

1K

4K7

330N

10U

16V

10U

16V

33N

100N

4U763V

4U763V

4U7

63V

470P100N

4148

100K3K

3

100K

4K99

4K99

4K991N

100N

4148 100N

1N33K

16V100U

100N

100N

330N

10K0

10U63V

16V100U

1K0

1K0

100N

4U763V

4U763V

4U763V

100N

100K330N

100N

20K

100N

100N

10U63V

12N 5K1

100N

10K0

4K7 100N

MPSA63

4148

BLU

10K10K

470R100R

2K21

22N

50V22U

1K8

1.0W

160V

10U

160V10U

275V22N

50V22U

50V22U

100K

1M1U 1U

50V22U

1/2W18R

2K

2K

4K7

2K21 50V

22U

DPDT PUSH

10U160V

10K

20K

MC

33079P4K

7

4K7

33N

10K

20K0

10K0

220P

63V2U2

2K

10K100K

470N

33N

2K

10K33N

10K0

3K3

10K

MC

33079P680P 3K

3

3K

20K0

20K0

10K

100P

MC

33078P

100P

3K3

1K

470N

RED

3K2K

10K1K

1K5

180K

16V100U

2K

4U763V

330N

10K

20K

10U63V

10K

4N7 150N

MC

33078P

16V100U

3K

4U763V

4148

NE

5532N 4148

3K

10K330N

33N

20K0

3K3

4N7 M

C14007

4148

100N

2K49

10K0

2K

100K33N

680P

4K99

MPSA63

MC

33078P4K

12

4K99

562R

MC

33078P

220P4K

99

RED

1K

3K3

270R

4U763V

680P

MC

33079P

1K

47K

20K 4K99

270R

270R

MC

33079P180K

100P MC

33078P

49K9

4148220R

1K0

100R

220P

1K

1B LIN

10K

4148

33K68K

20K0

RED

4K99

2K2

220P

5K1

681R0

20K 05C R/A

10K0

1M

10K0

4N7

100N100K

1K

100N

249R680R

100N

2N5401

160V10U

33K

10K

1M

22N

4U763V

4U763V

10K0

470N

50V22U

10K0

100N

MC

33078P

100N

100N

NE

5532N

4148

MP

SA

63

10U63V

100N

100N

4U7

63V

100K

NE

5532N

249R680R 3K74

100N

4U7

63V

NE

5532N

NE

5532N

10U63V

100N

100N

22N

2U2

63V

10U160V 16

0V10

U

160V10U

Val Val

330N

DP

DT P

US

H

100K

B LIN

50K

B LIN

10K

4148

MC

33079PN

E5532N

50K

B LIN

5POS 2S

BC560C

MP

SA

06

1N

100N

DPDT PUSH

GRN

20K

MC

33079P

20K0

50K

B LIN

50K

B LIN

50K

B LIN

NE

5532N

MC

14007M

C33079P

MC

33078P

20K

05C R/A

LIN10K

50K

B LIN

20K

05C R/A

SGv1.00

+15V

-15V

15VT

SG

v1.00

M1239

-15V

v1.00

+15V

CHASSISGND

AG1

Copper

R32

C125

R81

R24 R78

R99

C63

R84

R77

R118

R121

C124

R31

R73

R120

R66

R46

C53

C24

X74

C84

R47

R71

C19

X185

C98

R55

X73

X193

R328

X75

R322

R7

R36

C100

X189

D2

D1

X191

C101

C200

X169

C93

X28

R14

X158

X167

D4

X30

R13

C8

X65

X24

R104

X92

R169

C103

R116

R240

X42

X31

R296

C54

R69

R83

C113

X71

C112

C189

X96

X95

C201

X204

R174

X76

R188

R175

R183

R141

C118

X178

R156

X176

X179

R185

C182

R142

X68

C111

X83

C47

X61

C197

C109

X85

C107

R178 X

77X

173

X163

R220

X175

X118

X100

X99

R20

R190

X138

X49

R201

R189

C148

X40

D25

R299

R195

R264

X206

X140

R194

C133

X47

X48

X137

X202

R103

R101

X44

X172

R285

D23

R287

C199

R184

D24

X46

R278X

82

R312

X98

R306

R276

X80

C156

R255

R307

C162

D9

D28

R275

R203

X63

R34

X4

R68

C20

X8

R53

X9

R111

R110

X69

R27

X5

R165

R114

C88

R58

R100

R117

R80

X12

R124

R112

R44

X14

X13

R35

R1

R199

R5

R325

R132

X151

X152

C2

R128

R96

X136

R4

C77

R93

R129

R59

C4

R8

R321

R49 R

48

R319

X122

R51

X144

X123

R138

R134

C37

C72

X125

X124

R137

C58

R19

X27

R168

X66 X

67

R12

R97

R56

C6

C7

X60

X59

X142

C57

R180

X57

R105

R11

X126

R159

R151

R163

R21

C105

R320

X54

R241

X32

R76

R75

R158

X119

X116

R147

R259

R140

D16

R145

R62

X130

R235

X180

X33

X29

R162

X84

R313

C143

R218

R60

R314

R149

R160

R210

X188

C192

R172

R217

R214

R177

C144

R204

X21

C145

D8

D6

R219

R211

C141

X34

X106

R237

R223

R215

X117

C147

X171

X79

C196

R108

R213

C142

X108

R193

R246

D27

X107

R270

D26

X109

X35

R251

R39

X110

R249

R266

C55

X111

R265

R267

R230

R154

R42

R274

R280

R229

R179

R227

R282

R315

R226 C

27D

20X

97R

41R

269R

318

D22

D19

R284

R295

R288

C35

X2

C190

X50

C11

X18X19

X16

X183X156

R37

X20

X72

C187

C185

W18

C69

C51

X132

X161

X41

X141

C80

C171

R286

R30

W2BLK

Q5C60

R102

C66

R89

R88

R79

R294

C165

X11

R67

R107

X10

R23

R74

C56

C74

C18

C204 C205

C83

C85

C82

C87

R70Q2 Q3

X64

R52

R72

C38

R25

C10

R166

C172 C96

W29

X36

C3

U1

C95

C91

X190

X39

C41

R198

C129

C31

C176

C99

X157

C102

C188

C42

C43

X120

U8

C5

C181

C180R

239R

126

X159

R91

C65

D3

R297

X93

R182

C115C117

C116

X70

X184

D17

R113

R238

C106

R143

R148

CopperTie Here

R65

R61

D15

R157

C184

C108X177

C110

C114

R133 R

206

C44

C136C135

C137

C178C151C152

C120

X62

C122

C191

D14

R209

R212

R225

X186

R200

R298

R191

C134

C81

D21

C155

C132

R250

C157

X187

X45

X78

C175

X148

C169

X22 X

139

C62R106 C61

C158

R244

R245

C206C159

C154

C160

X43

C174

X208

X146

R208

C71

C194

R311

C13

C193

X101

C30

C161

R187

C170

R139

R207

C14

Q9

D29

R277

R316

R281

R293

W1WHT

W3

120VDC

RED

W4

GRN

K4

M1239 3/3

W12

R87 C68C64

R300

C16

C59

C167

C163

C164

R29

R26

C76C48

C33

X23

R202

R119

R115

R98

W11

R33

C23

S1

C52

X52

R123 R

127

U2

R45

R94

C34

R2 R6

R302

C1

C22

R131

R125

R167

C97

X201

X153

C73

R57

R3

X182

C39

R304

X51

R92

R135

U3

C36

R95

R38

R15

R16

X1

R9

X7

X25

C131

U6

C40

R50

X58

X162

R109

C67

X127

X129

R136

R150

X56

R144

R258

X121

X115

R170

R234

C149

R243

C104

C45

R63

R64

C46

W24

R146

C119

C123

U23 C150

R171

C126

D12

U12

X131

D11

X53

R155

R152C

121

C138

R224

R221

X164

C128 U7

D13

C195

R205

R122

R236

R181

C139

C146

R197

Q8

U13

R192

R130

X165

R43

U24

C198

R153

R248

R222

R263

C153

C140

U20

W14REDR

252

R40

R82X

166

R85

R271

R262

U19

R247

C28

U15

R231D

10R

86

R268

R292

C202

R317

BOTA

BOTBWIPA

TOPAWIPB

TOPB

P12

D18

W16YEL

R253

R254

R228

R279

R301

C203

R196

R283

J1

-

-

-P4

R28

R164

X3

R289

X102X174

C186

C9R17

R242

X155

X154

C25

R22R233

X113

X145

X150X55

W14_RED X38

C173

X15

Q4

C50

R90 R54

R186

C17

X6

J10

- - -

J12

- - -

W19

C90

C89

R290

C86

C166

R291

C12U5

X26

X17

C79

C78

U22D5

Q1

C127

C183

W25

C179C92

M1239 1/3K4

R176

U25

W9

R173R232 R18

X112

X149

C168

C130

X105U26

L R

J6

W16_YEL

U18

C29

X37

C207

C177

C32C21

C70

C15

C49

V2 V1

C94

S2

J14

J13

BOTA

BOTBWIPA

TOPAWIPB

TOPB

P1

BOTA

BOTBWIPA

TOPAWIPB

TOPB

P5

R10

D7

W22

U10

U16

BOTA

BOTBWIPA

TOPAWIPB

TOPB

P3

S3

Q6

Q7

C75

C26

X114

S4

J8

R161

U9

R216

BOTA

BOTBWIPA

TOPAWIPB

TOPB

P9

BOTA

BOTBWIPA

TOPAWIPB

TOPB

P7

BOTA

BOTBWIPA

TOPAWIPB

TOPB

P8

U27

U14

U21

U4

M1239 2/3K4

BOTA

BOTBWIPA

TOPAWIPB

TOPB

P11

W10

P13

J2

-

-

-

J3

-

-

-

J4

-

-

-

J5

-

-

-

J7

-

-

-

J9

-

-

-

J11

-

-

-

W23

BOTA

BOTBWIPA

TOPAWIPB

TOPB

P2

BOTA

BOTBWIPA

TOPAWIPB

TOPB

P10

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#

M1238-V1.00.sch2002

K4 POWER AMPWed Mar 01, 2006

M1238 ofSheetRev:

41V1.00

Product

Date:Filename:

PCB#

M1238-V1.00.sch2002

K4 POWER AMPWed Mar 01, 2006

M1238 ofSheetRev:

41V1.00

1/4W10K

R53

.

1/4W10K

R14

.

1/4W 22K

R57

.

1/4W 22K

R18

.

1/4W47K

R54

.

1/4W47K

R15

.

W46

W45

1/4W 2K2

R77

.

1/4W 2K2

R38

.

W37

W35

C20100V68N

C3100V68N

R1431/4W

MINI1K0

W33BLK

W32REDFAN

R1521/4W

.82K5

W1

4.75" 8r 30WPGM

1/4WMINI

10K0

R160

1/4WMINI

10K0

R133

BAV21

D10

1/4W 1M

R69

.

C22100V68N

BAV21

D4

1/4W 1M

R30

.

C5100V68N

1/4WMINI

20K0

R162

1/4WMINI

20K0

R158

1/4W 1M

R71

. 1/4W 10K

R72

.

1N5240BRL D7

0W510V0

BAV21

D8

BAV21

D3

1/4W 1M

R32

. 1/4W 10K

R33

.

1N5240BRL D1

0W510V0

1/4WMINI10K

R165

1/4W2K

R167

.

1/4WMINI

10K0

R168

1/4WMINI10K

R164

1/4W

.

R6722K

TO92

MPSA56

Q145104

R581/4W

.2K2

1/4WMINI2K

R183

1/4W 10K

R40

.1/

4W

.

R2822K

MPSA56

Q45104

TO92R191/4W

.2K2

1/4WMINI2K

R182

1/4W 10K

R1

.

U2:B

NE5532N

100P 100VC87

1/4W.

4K3

R170

100P 100VC86

1/4W.

4K3

R169

50VC29

22U

R641/4W

.220R

Q155104TO92

MPSA56

R601/4W

.10K

50VC13

22U

R251/4W

.220R

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

R1411/4W

MINI20K0

1/4W 3K3

R140

.

50VC32

680P

1/4W 100K

R74

.

R621/4W

10K0

50VC24

22U

50VC15

680P

1/4W 100K

R35

.

50VC7

22U

R231/4W

10K0

1/4W 1K8

R52

.

1/4W 22K

R42

.

1/4W2K2

R27

.

1/4W 1K8

R13

.

W43FAN-AG

X58

MJF6388

6815Q35

T221D

25VC25

68U

1/4W680R

R50

.

25VC8

68U

1/4W680R

R11

.

1/4W 470K

R154

.

4148D53

BD139

6774Q21

TO126

.

1/4W15K

R49

.

1/4W 270R

R61

.

1/4W10K

R51

.

BD139

6774Q10

TO126

.

1/4W15K

R10

.

1/4W 270R

R22

.

1/4W10K

R12

.

TO92

Q385109

MPSA43

1/4W 2K49

R153

.

NTC10K

R156

6467

R761/4W

.12R

50VC23

100N

R371/4W

.12R

50VC6

100N

R71/4W

.12R

1/4W 1M

R147

.

R1461/4W

.22K

R1501/4W

.1K3

5.0W 0R27

R70

1/2W 22R

R75

.

W6

5.0W 0R27

R55

5.0W 0R27

R31

1/2W 22R

R36

.

W3

5.0W 0R27

R16

R1511/4W

.82K5

5" 8R30WPGM

+ 7405MID

SP4

W4

4.75" 8r 30WPGM

5" 8R30WPGM

+ 7405MID

SP2

AGW30BLK

1/4WMINI

10K0

R161

1/4WMINI

10K0

R157

1/4W 10K

R4

.

1/4W 10K

R43

.

BAV21

D9

BAV21

D2

4V

+11

V-

U1:E

1/4W 1K

R65

.

1/4WMINI

10K0

R171

1/4W 2K

R166

.

1/4W 1K

R26

.

1/4W

MINI1K

R181

4V

+11

V-

U7:E

U1:D

MC33079P

NTC10K

R134

6467

R21/4W

.10K

4148D50

1/4W 10K0

R139

MINI

BC560C

Q175102

TO92

1/4W2K2

R66

.

1/4W 22K

R3

.

BC560C

Q65102

TO92

FAN

1

R451/4W

.3K3

1/4W 3K3

R44

.

R61/4W

.3K3

1/4W 3K3

R5

.

1/4W 47R

R78

.

FAN

2

1/4W 47K

R155

.

50VC18

1N

50VC1

1N

1/4W 47R

R39

.

50VC34

1N

50VC17

1N

R461/4W

.12R

250VC33

10N

4148D52

250V

10NC16

R1491/4W

.10K

SP1

HORN7286

C19100V68N

D5

4148

C74100V47P

R291/4W

.33K

R171/4W

.10K

TP4

C27100V10P

TP3

TP1

100P 100VC80

1/4WMINI

20K0

R163

100P 100VC79

C8263V 4U7

1/4WMINI

20K0

R159

U8:A

TL072

4U7C81

63V

IN FROM M1239PRE-AMP

D11

4148

1N5240BRL D12

0W510V0

16VC28

10U

1/4W 10K

R48

.

R591/4W

.4K7

1/4WMINI1K

R184C21100V68N

1N5240BRL D6

0W510V0

TO92

MPSA43

Q85109

16VC11

10U

1/4W 10K

R9

.

R201/4W

.4K7

C4100V68N

C2100V68N

U2:A

NE5532N

63VC73

2U2

8V

+4

V-

U2:C

1/4W 20K

R137

.

R731/4W

.220R

TO92

Q205119

2N5638R681/4W

.33K

R561/4W

.10K

R471/4W

.22M

R341/4W

.220R

TO92

Q95119

2N5638

R81/4W

.22M

C85160V10U

R1441/4WFLMP

11R3

100VC30

15P

63VC31

4U7

R631/4W

.47K

TO92

Q135101

BC550C

CUT OUT R49, R51UNTIL 2 TO 4 mVIS ACROSS TP3 ANDTP4 WITH AMP COLD

TP2

100VC12

15P

63VC14

4U7

R241/4W

.47K

TO92

BC550C

Q25101

Q365104

TO92

MPSA56

1/4W 100K

R148

.

100VC91

4U7

TO92

Q185104

MPSA56

TO92

MPSA43

Q195109

U8:B

TL072

M

LIN

P2:A

4032

10K

CH-4 GAIN

8V

+4

V-

U8:C

TO92

MPSA56

5104Q7

U7:C

MC33079P

U1:A

MC33079P

U1:C

MC33079P

1/4W 470K

R138

.

NTC10K

R135

6467

R1421/4W

.390K

TO92

BC560CQ16

5102

U7:B

MC33079P

TO92

BC560CQ5

5102

TIP147Q22

TO2186903

TO92

Q395102

BC560C

R1451/4WFLMP

11R3

C10100V10P

CUT OUT R10 , R12 UNTIL 2 TO 4 mVIS ACROSS TP1 ANDTP2 WITH AMP COLD TIP142

Q1

TO2186902

TIP147Q11

TO2186903

TIP142Q12

TO2186902

10

W47:A

Q37

MPSA43

TO925109

SP3

HORN7286

40

W47:D

100VC90

4U7

M

LIN

P2:B

4032

10K

CH-4 GAIN

GND=GROUNDAG=AMP GROUNDSG=SIGNAL GROUND

S TR

---

LEFTJ1

U7:A

MC33079P

S TR

---

RIGHTJ2

U1:B

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#

M1238-V1.00.sch2002

K4 POWER AMPWed Mar 01, 2006

M1238 ofSheetRev:

43V1.00

Product

Date:Filename:

PCB#

M1238-V1.00.sch2002

K4 POWER AMPWed Mar 01, 2006

M1238 ofSheetRev:

43V1.00

BLUE

1

C304N7

C2722N

W23

XF1_3

250V 50V .

5.0W 1K

R85

1N4148D18

TUBE/AG1

BLKW13

LIMITER DRIVE

R1171/4W

1K5

1/4WMINI

10K0

R179

BROWN

C52160V220U

S4

2F2

FUSE

CE- T 2.5 A/ 230 V

4007

D34

230/240VAC50Hz

BRN.

240VAC

TP5

R831/2W

150R

12" 2R 170WPGM

W40WHT

AC-BLK

W19

CSA- 5 A/ 120 V

BAT85 D270A2

RED

LD2

6405

.

RED

LD1

6405

.

R941/4W

.10K

1/4W2K

R172

.

IN FROM M1239PRE-AMP

S1

DPDT Switch

1N4148D30

BAT85 D280A2

D22

0A2 BAT85

1/4W 10K

R106

C4150V470N

1N4148D16

XFMR-BLK

W22

XFMR-BLKW18

1/4W 390R

R122

63VC47

10U

50VC46

220N

1/4W 1K

R121

1/4W 100K

R105

U6:B

NE5532N

C37100V100P

R931/4W

100K

1/4W.

249R

R176

6A2

D40

4007D39

4007D38

63VC9

1U

BAT85 D320A2

R911/4W

2K05

1/4W.

4K99

R174

8V

+4

V-

U12:C

1/4W.

4K99

R173

5 AMP SB

F3

FUSEHOLDER

F2FUSEHOLDER

5 AMP SB

U12:B

TL072

W29_

W43_FAN-AG

1N4148D36

R1281/4W

1M

R981/4W

68R

R871/4W

2K87

1/4W.

10K0

R180

GRN/YELL

4007

D37

Q315102

BC560C

TO92

1/4W 75R

R104

4

RED W11

TUBE120VDC

160VC55

220U

Q325102

BC560C

TO92

1/4W 4R7

R102

R1291.0WFLMP1R

Q345102

BC560C

TO92

Q235101

BC550C

TO92

W24BLU

BRN/BLK

CH1339E

63VC54

1U

OUTIN

GND

MC7815CT

6872

U10

1N4148D19

1/4W 18R

R96

50VC50

33P

50VC56

33P

1.0W 4K7

R111

TP6

5.0W 0R18

R101

5.0W 0R18

R95

1.0W 4K7

R84

100VC67

100N

100VC65

100N

63VC51

1U

63VC57

1U

5.0W 1K

R112

1N4745A D20

1W016V0

1N4745A D17

1W016V0

4007D14

100VC71

100N

100VC83

100N

R1091/2W

150R

R1101/2W

150R

50VC36

68N

R861/2W

150R

R821/2W

150R

W41RED

100VC76

100N

F13414

FUSEHOLDER

8V

+4

V-

U6:C

1/4W

.2K

R88

C64

4N7

250V

275VC61

22N

R1241/4W

47K

R1161/4W

47K

W50_BLUTUBE AG2

D33

0W522V0

1N5251BRL

1/4W 5K6

R126

.

W36GRN

12

VTL5C8

U5:A

6860

50VC62

3300U

63VC48

1U

Q255101

BC550C

TO92

M

Taper4529

470R

P1.

1/4W 4K12

R119

BLUW50

TUBE AG2

Q265101

BC550C

TO92

1/4W 4R7

R97

1/4W 4K12

R80

W28

+29VDC

1/4W 150R

R120

W29

-29VDC

1/4W 150R

R81

1/4W 1K

R99

R1271.0WFLMP1R

BD238

6788Q33

TO126

.

BD237

6787Q27

TO126

.

R1321.0WFLMP1R

4007D25

100VC68

100N

100VC72

100N

R1141/2W

150R

100VC84

100N

50V

68NC44

100VC75

100N

W27GRY

REDW26

YELXFMR

W25

REDW24

D44

6A2 W23

GRY

D23

0A2 BAT85

C42100V27P

SCH_DPDT

D15

0A2 BAT85

POWER AMPLIFIER

W8

6A2

D47

6A2

D43

D46

6A2

IEC_RECT

SW-WHT

W21

D42

6A2 6A2

D41

.SW

W17

BLK

D29

0A2

BAT85

U4:A

TL072

D31

0A2 BAT85

R1131/4W

560K

CURRENT LIMIT

R1001/4W

20K

C4063V1U

R921/4W

10K0

1/4W.

4K99

R1781/4W

.249R

R177

U12:A

TL072 1/4W.

4K99

R175

3682 DUMMYW7

W28_

{Value}50V

C603300U

3300UC59

50V

4007D351/

4W 2K2R130

R1311/2W

.22R

C4550V5N6

D21

0A2 BAT85

R1031/4W

47R

C3950V680P

R901/4W

47R

1N4148D13

C3550V12N

TO92

Q245122

J109

100VC69

100N

50VC53

33P

W12WHT

63VC43

470U

TO36910Q30MJ21195

63VC38

470U

100VC88

100N

WOOFER

SP57388

D45

6A2

D26

0A2 BAT85

R1251/4W

560K

R1231/4W

1K

R1151/4W

1K

.GRN

CHASSIS GND

W20

.BLKSWW14

7

6

5

4

2

1

3

CH 1339T1

8V

+4

V-

U4:C

TO92

Q295119

2N5638

R1071/4W

12K1

1/4W 2K

R89

.

43

VTL5C8

U5:B

6860

CopperTie Here

160VC58

220U

1N4148D24

63VC49

1U

1/4W 10K0

R118

50VC63

3300UW9BLK

SPKR/AG

1/4W 10K0

R79

U4:B

TL072

R1081/4W

4K12

100VC70

100N

100VC66

100N

OUTIN

GND

MC7815CT

6872

U9

OUTIN

GND

MC7915CT

6871

U11

WITH AMP COLDADJUST P1 FOR2 mV ACROSS TP5AND TP6

MJ21196

6909TO3

Q28

100VC89

100N

S TR

---

SUB-OUTJ3

WARNING: 120 VDC IS BETWEEN C55 TO GROUND.THIS PRESENT A SIGNIFICANT SCHOCK HAZARD. PLEASE, USE EXTREME CAUTION WHEN SERVICING!

EUROPEAN POWER SUPPLY

U6:A

NE5532N

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#

M1238-V1.00.sch2002

K4 POWER AMPWed Mar 01, 2006

M1238 ofSheetRev:

44V1.00

Product

Date:Filename:

PCB#

M1238-V1.00.sch2002

K4 POWER AMPWed Mar 01, 2006

M1238 ofSheetRev:

44V1.00

D S G

MJ21196

MPSA43MPA56 J109

2N5638 BC560C

TIP147

E B C

TO92BC550C

C B E

BD139BD237BD238MJE340MJE350MJE271MJE270BD140

E C B

6804_PC

MJF6388

6884_PC6882_PC

VIEWBOTTOM

MJ21195

EB

MJE15032MJE15033TIP50MJE5730MJE15031BDT41CBDT42CBDX54CBDX53C2N6045 BD649TIP102TIP107

CB E

13

10

7

4

1

9

1112

8

#

23

56

VER#MODEL(S):-

DATE DESCRIPTION OF CHANGE

V

V

V

V

V1.00

VV

VV

VV

VV

D

D

D

D

SEP-08-2005

N

N

N

N

FIRST RELEASE

K4

DD

DD

DD

DD

NN

NN

NN

NN

M1238 HISTORY

6745_PC

REF KNOBPART#MODEL(S):-

FUNCTION

RR

RRR

RRR

RRR

P2

FF

FFF

FFF

FFF

F

KK

KKK

KKK

KKK

9922

PP

PPP

PPP

PPP

4032

M1238 POT LIST

NN

NNN

NNN

NNN

{NEW}N

K4

VCDCLINCH

ORIGIN LONG AXIS

SHO

RT

AXIS

INSERT

ORIGIN

M1238V1.00BlankSize - 19000x10400

Pcb Mech

TAB

NORMAL

SOCKET

SOCKET WITH DIRECTION

NORMAL LARGE

SOCKET UPSIDE DOWN

D S G

M1238V1.00

HORNTIP147

MJF6388

WOOFER

HORN

MID

MID

8829 SCREW

TOOLING PIN TOOLING PIN 8829 SCREW

Top Assy

3719 -SPRING

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---HAND INSERT Q2 , Q13 , R134 , R135 , R156, PUSH FLAT TO HEATSINK AND COMPLETELY COVER WITH GOOP.4---C90 AND C91 RTV AND BEND FLAT5---C45 #5433 5N6 IS HAND INSERTED

VTR

VTR

VTR

RTV

RTV

VTR

VTR

VTR

RTV

VTR

VTR

VTR

VTR

GUIDEETCH

2 31 4

VT RVT R

VTRVTR

GUIDEETCH

VTR

VTR

VTR

RTV

RTV

RTV

E B C

MPSA56MPSA43

EB C

C EB

BC560CBC550C

2N5638J109

BD139BD237BD238MJE340MJE350MJE271MJE270BD140

E BC

BAR D

OW

N

EB C

BAR DOWN

BAR D

OW

N

VTR

12

34

PCB

CO

NN

4 C

IR B

OTT

OM

.156

7

MJE15032MJE15033TIP50MJE5730MJE15031BDT41CBDT42CBDX54CBDX53C2N6045 BD649TIP102TIP107

CB E

GUIDEETCH

BAR DOWN

12

34

PCB C

ON

N 4 C

IR BO

TTOM

.156

23

14

EB C

E BC

B EC

TIP 142

VIEWBOTTOM

MJ21195MJ21196

B E

BAR DOWN

LED+

VTR

BAR DOWN

PCB

Inner heatsinkOuter heatsink

8581TO220 parts

8833 screw

8841

Sil pad

3977 - Yellow spring

7 7

BAR DOWN

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

K4PENDING CHANGE

5

2

#

6

34

1DATE

MODEL(S):-VER# DESCRIPTION OF CHANGE

D

D

V

V

N

N

D

DD

V

VV

N

N

K4M1238 DRILL HISTORY

N

SEP-08-2005 V01 FIRST RELEASE

12

9

6

3

#

13

1110

54

87

21

DATEMODEL(S):-

VER# DESCRIPTION OF CHANGE

D

D

D

D

V

V

V

V

N

N

N

N

DD

D

DD

DD

D

VV

V

VV

VV

V

NN

N

NN

NN

N

M1238 HISTORYK4

SEP-08-2005 V1.00 FIRST RELEASE

FUNCTION KNOBREFMODEL(S):-

PART#

RRR

RRR

RRR

P2RR

FFF

FFF

FFF

FFF

PPP

PPP

PPP

4032PP

NNN

NNN

NNN

NNN

KKK

KKK

KKK

9922KK

{NEW}

M1238 POT LISTK4

BAR DOWN

PCB

Inner heatsink

8581

Outer heatsink

TO218 parts

8833 screw

Sil pad

8841

.

.

RIGHT

.

SUB-OUT LEFT

CH-4 GAIN

5834

3672

3654

5101

5101

6467

6405

6435

36025610

6815

6871

4729

6774

4729

6467

6434

6788

4719

4726

6434

6434

4529

5616

5616

4719

4726

3414

3903

3498

5610

5610

5629

4040

3672

6434

6405

6467

6451

3903

5933

3654

3977

6872

6872

4040

3719 3719

4729

5834

6787

6902

6902

6903

6909

4729

6774

5616

5616

6434

6910

6860

5621

5621

6434

3538

5933

3498 3498 4032

6434

3414

6903

3414

6434

10K04K99

1U63V

10K68N

100P

100N22M

4K768N

10K

4148

10K

10K10K

10K0

68N220R

4148

20K0

1K0

4148

4U763V

20K0

10V010V0

BAV21

BAV21

22K

68U 25V

47K

47R

12N

68R

BAT85

BAT85 75R

BAT85 BAT85

10K

150R

22K2K49

1M82K5

249R

10K10K

249R

33K2K2

10K22V05K6

220R4K3

400720K0100P

10K

68N22M

68N20K0

10K390K

22K

10K010K0

33P4007

1R 1.0W

2K

10K

1R 1.0W

4148

4148

10V011R

3

12R

22K1M

10K0

10K

22U50V

10N

47R680P

2K2270R

680R10P

15K

1K8

3K3

100N

2K23K3

3K3

3K3

1N1K8

12R680R

10K

100K270R

47R

10V01N

22K

22K1M

4007

150R4007

BAT85

10K0BC

560C

150R1/2W

4007

47R

4148 4R7

BAT85

BAT85

1N4148

1K

47K

2K

100N5N

6

150R1/2W

100K150R1/2W

82K5

12K127P

2K05

4148

1K 1K

47K

2K87

4K12

100N

2K

100N100N

20K

100N

10K0

68N

100N2K

1M

22K

MPSA561K

68N

MC

33079P

10K

100N

4K3

100N

10K0

10K

4 CIR

10K

50V22U

MPSA56

10U16V

3K3

33K

2U263V

2K2

100N

MPSA43

BAV21

1U

4K7

4U7

63V

BC550C

BC550C

BC560C

68U25V

10P 2N5638

BAV21

MPSA43

10K

BC550C

BC55

0C

1N4148 10

U63

V

RED

470N

NE5532N

100K

100P

BC560CJ109 4148

BC560C

BC56

0C 68N

1U1K3

MPSA56

10K

470K

275V22N

4K99

2K

100N

MC

33079P

2K2

1K

100P

TL072

4K99

4K99

10K47K

10K0

10K0

68N

33P4007

10K0

1U

220U160V

4148

47P

100P20K0

NE5532N

TL072

4K710K0

1MMPSA56

33P

4148

T221D{Watts}

MJF6388

TO220{Watts}

MC7915CT

1K

MPSA56

1M

MPSA56

11R3

BAV211N

5.0W

0R27

BD139

TO126

22R1/2W

2N5638

5.0W

0R27

10K

2K2

4U763V

15P

10K

47K

100K

BC560C

100N

1N

12R

BAV21

22R1/2W

680P

2K24U763V 15P

15K

12R

22U50V

4007

6A2

BD238

TO126

16V0

5.0W

0R18

5.0W

1K

6A2

6A2

4K12

18R

1K4148

BAT8

5

150R1/2W

BAT85

4148

150R1/2W

470R

1K5220N

BAT85

4148

3300U50V

3300U50V

16V0

1.0W4K7

5.0W

0R18

1K

5.0W

680PTL072

560K

10K

100N

150R1/2W

4K12

10K0

47K

100N

10K0

100KM

PSA43

LM13600N

390R

1K

100N

1U

220U160V160V

220U

10K

50V22U

220R

10U16V

160V10U

20K

2K

2K

BC560C

6A2

560K

RED

10K

4R7

4N7250V

2N5638

MPS

A43

100V4U7

MPSA56

220R

1U

4 C

IR

Yellow

TO220{Watts}

MC7815CT

TO220{Watts}

MC7815CT

10K

470K

1R1.0W

47K

BC560C

5.0W

0R27

10N

BD237

TO126

TO218

TIP142

TO21

8

TIP1

42

TO21

8

TIP1

47

MJ21196

Body

5.0W

0R27

BD139

TO126

3300

U50

V33

00U

50V6A2

MJ21195

Body

VTL5

C8

BC550C

68N

4K71.0W

63V470U

470U63V

1U

6A2

4U7100V

LIN

10K

6A2

22R1/2W

TO218

TIP147

6A2

-15

SG -15+15

+15R

LSG

K4

PRE-A

MP

V1.0

0

AG

SG

V1.00

M1238 4/4

V1.00

V1.00

M1238

AGL

R

V1.00

LOWSIG

V1.00

M1238

SET P1 FOR 2 mVBETWEEN TP5AND TP6

WARNING!120V DC ISBETWEENC55 TO GROUND

R171

R178

C49

R21

C21

C87

X75

C72

R8

R20

C19

R53

X48

D36

R14

X37X38

R60

R48

R157

C2

R64

D51

X62

R162

X40

X23

R143

X74D

48

C82

X33R

141

D1

D7

D2

D8

R3

X1

C25

X4

X10

X12

R24

X11

R90

C35

R98

D27

D26

R104

D23

D22

X67

R94

R120

X71

X32

R146

R153

R147

R151

R176

R17

R164

R177

X57

R29

R19

R2

X46D

33R126

R34

R169

D34

R159

C79

R4

C5

R47

C20

R158

R1

R142

R67

R139

R161

C53

D35

R132

W48_

.

GRN

R183

R33

R127

D49

D11

X35

X36

D6

R145

R7

R18

R30

R62

R72

C7

C33

R39

C32

R38

R22

R11

C27

R10

X9

R13

R6

C6

R66

R44

R45

R5 C17

X8R

52

R37

R50

R51

R35

R61

R78

X21

D12

C18

R57

R42

R69

D39

R81

D14

D15

X13

R79

Q34

R83

D25

R103

D19

X19X72

R97

X20D

28 D29

X69

D16

R123

R124

R172

X30

C70

C45

R109

X66

R105

R110

X65R

152

R107C

42R

91

D52

R115

R121

R116

R87

R108

C67

X70X49

R182

X47

C88

X52

X44

X58

C83

TP4

X27

X26

X28

TP6

R100

C75

X34

R168

C4

C71

R89

R128

R28

Q4

R181

C22

U1

R41X60 C

68

R170

X61

X63

C89

R180

X45

R9

W34

X39

W50TUBE AG2

BLU

R56

C29

Q15

C28

R140

R68 C73R

58

C69

W28

+29VDC

BRNQ8

D3

C51

X41

W39RED+29V

R136

C81

W6

SPKR/ R-MID

BRN

X42

Q2

Q13

Q17

W3

SPKR / L-MID

WHTC8

C10

X6

X22

Q9

D10

X25

Q19

W23GRY

R134

X59

X29

Q25 Q26

W36

GR

N

W9

SPKR

/AG

BLK

W13

TUB

E/AG

1B

LK

D30

TP5

W43_FAN-AG

BLK

W28_

BRN+29VDC

W39_RED

C47 X15

LD2

C41 U6

R93

C37

Q39Q24

D53

X14

Q31 Q32C

44

C48

W38BLK

R150Q36

R149

R154

C61

W40

WOOFERWH

TW

41R

ED

WOOFER K4

M12

38 3

/4

R173

X50

R88

C66

U7

R130

R26

C86

U12

R175R174

R43

R15

R133R

179

W38_BLK

C3

C56

D37

R23

X68

W12+15V TUBE

WHT

C57

C52

D50

W46

BLK

C74

C80

R163

U2

U8

R59

R160

R32

Q7

C50

D5

Q35

U11

R65

Q18

R71

Q14

R144

D4

TP1

C1

R16

Q10

R75Q20

R70

R12

R27

C14

C12

X2 X3

R135

R63

R74

Q16

C23

C34

R76

D9

X5

X43

TP2

R36

C15

R77

C31

C30

R49

X7

X24

R46

C24

D38

D40

Q33

D17

R95

R85

D47

D43

R80

R96

R99

D13

X17

X16

D31

R86

D21

X73

D24

R82

P1

R117C

46D32

D18

W29_-29VDCWHT

C60

C63

D20

R111

R101

R112

C39

U4R125

R106

C65

R114

R119

R118

R155

C76

X64

R92

W14

.

SWB

LK

W19

AC

-BLK

F1

R148

Q37

W22

XFMR

-BLK

W17

.

SWB

LK

W21

SW-W

HT

M1238 2/4K4

W2

W30

BLK

AG

W37

BR

N

R-M

ID

W35

WH

T

L-M

ID

U3

J2

-

-

-

R122

X31

X54

X55

X53

R184

C84

C9

C58C55

R165

W32

FANRED

C13W45

RED

R73

C11

C85

R137

W16

X51

R166

R167

Q6

X18

W26RED

W27GRY

W25YEL

XFMR

D46

R113

LD1

R156

R102

W8 REDSPKR / WOOFER

CAU

TION

!R

eplace with sam

etype and value fuse.

CSA

- 5 A/ 120 V

CE- T2.5 A

/ 230 V

C64

W7

DUMMY

Q29

Q38

W5

C90

Q3

R25

W29

-29VDCWHT

C54

W11RED

TUBE120VDC

W10

U10

U9

R40

W33

FAN-GND

BLK

R138

R129

W43FAN-AG

R54

W48.

GR

N

W15

Q5

R31

C16

Q27

Q1

Q12

Q11 Q28

TP3

R55

Q21

W50_TUBE AG2

BLU

M1238 1/4K4 C59

C62

D44

Q30

U5

Q23

C36

R84

C38

C43

C40

W20

.

CH

ASSIS G

NDGRN

W18

XFMR

-BLK

D41

W47

W4

R-T

WEE

TER

OR

NW

1L-

TWEE

TER

YEL

C91

J3

-

-

-

J1

-

-

-P2

CAUTION!Replace with sametype and value fuse.

5 AMP SB

W24RED

D42

CAUTION!Replace with sametype and value fuse.

5 AMP SB

F2

R131

Q22

F3

D45

M1238P C B

W21

W22

W22

W19

W14

K 4 K E Y B OA R D A MP

14" WHIT E D/INS

8" WHIT E D/INS

8" B L A C K D/INS

245 V OL T S

C E T R A NS F OR ME R

B L UE

B R OWN

B L A C K

B R OWN

B L UE

B L A C K

W17

6" B L A C K D/INS

8" B L A C K D/INS

W18

W18

230 V OL T S

DUMMY

4" G R N/Y E L DUMMY

.

.

.

. .

.

.

. .

.

3490

3490

3490 3490

3489

3489

3489

3489

3490

3490

34

90

3490

36

01

3489

34

90

34

90

34

90

3489

CH1339E