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SERVICE MANUAL

YCV50
WEB ACCESS: http://www.yorkville.com
WORLD HEADQUARTERS CANADA Yorkville Sound
550 Granite Court Pickering, Ontario L1W-3Y8 CANADA Voice: (905) 837-8481 Fax: (905) 837-8746

TYPE: YS1003

U.S.A. Yorkville Sound Inc.
4625 Witmer Industrial Estate Niagara Falls, New York 14305 USA Voice: (716) 297-2920 Fax: (716) 297-3689

Quality and Innovation Since 1963
Printed in Canada

Manual-Service-ycv50-00-1v9.pdf

IMPORTANT SAFETY INSTRUCTIONS

INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE.

INSTRUCTIONS RELATIVES AU RISQUE DE FEU, CHOC ÉLECTRIQUE, OU BLESSURES AUX PERSONNES
AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE, N'ENLEVEZ PAS LE COUVERT (OU LE PANNEAU ARRIERE)

CAUTION:

AVIS:

NE CONTIENT AUCUNE PIECE REPARABLE PAR L'UTILISATEUR.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Read Instructions
The Owner's Manualshould be read and understood before operation of your unit. Please, save these instructions for future reference.

CONSULTEZ UN TECHNICIEN QUALIFIE POUR L'ENTRETIENT
Veuillez Lire le Manuel

Il contient des informations qui devraient êtres comprises avant l'opération de votre appareil. Conservez S.V.P. ces instructions pour consultations ultérieures.

Packaging Warning

Keep the box and packaging materials, in case the unit needs to be returned for service. When using electric products, basic precautions should always be followed, including the following:

Emballage Attention:

Conservez la boite au cas ou l'appareil devait être retourner pour réparation. 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.

Alimentation

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

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.

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. 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. 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.

Power Cord Service

The 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. The unit should be serviced only by qualified service personnel.

Cordon d'Alimentation Service
safety-4v2.eps Aug 26/05

Évitez d'endommager le cordon d'alimentation. N'UTILISEZ PAS L'APPAREIL si le cordon d'alimentation est endommagé. Consultez un technicien qualifié pour l'entretien de votre appareil.

YCV50BLUE Parts List 2/15/2005
YS # 6397 5906 6398 6399 5907 5908 6825 6438 6461 6432 6475 6731 5101 5103 5104 6873 6730 6884 6880 6467 5203 5197 5194 5201 5206 5422 5273 5606 5208 5274 5209 6451 5204 5840 6435 5224 5841 5227 5228 5314 5865 5231 5882 5233 5234 5254 5257 5945 5959 5631 5902 5267 5879 5914 5621 TFS-2B 4423 4424 4425 713 3976 8522 8563 3478 3489 3494 3602 3682 NYS224 3498 3523 3528 3921 3890 3914 3451 2403 8451 8604 8889 Description JEWELED PILOT LAMP AMBER REG V1 RED 3MM LED 1V9 20MA .4SPCER T&R RED 5MM LED 1V5 20MA HIGH EFF YEL 5MM LED 1V5 20MA HIGH EFF YEL 3MM LED 1V9 20MA .4SPCER T&R GRN 3MM LED 1V9 20MA .4SPCER T&R 1N4148 75V 0A45 DIODE T&R 1N4007 400V 1A0 DIODE T&R 1N5240BRL 10V0 0W5 ZENER 5% T&R 1N5248B 18V0 0W5 ZENER 5% T&R 1N5262B 51V0 0W5 ZENER 5% T&R 7824 TO220 P 24V0 REG BC550C TO92 NPN TRAN T&R TB MPSA06 TO92 NPN TRANSISTOR T&R TA MPSA56 TO92 PNP TRAN T&R TA MJE340 TO126 NPN TRANSISTOR TG IRF830 TO220 NCH MFET TN NE5532N IC DUAL OP AMP 4N35 OPTO-COUPLER 10K 10% THERMISTOR NTC TO-92 _47P 100V 2%CAP T&R RAD CER.2"NPO 220P 100V 2%CAP T&R RAD CER.2"NPO 470P 1000V 10%CAP T&R RAD CER.2"Y5P 470P 100V 5%CAP T&R RAD CER.2"NPO __1N 400V 5%CAP T&R RAD .2"FLM __1N 50V 10%CAP T&R BEAD NPO __1N5 200V 5%CAP T&R RAD CER.2"NPO 1N5 50V 5%CAP T&R RAD CER.2" X7R __2N2 400V 5%CAP T&R RAD .2"FLM __2N2 200V 5%CAP T&R RAD CER.2"NPO __4N7 250V 5%CAP T&R RAD .2"FLM __4N7 250V 20%CAP BLK 'Y' 10MM AC _10N 100V 10%CAP T&R RAD .2"FLM _22N 400V 10%CAP BLK RAD POLY FLM _22N 275V 20%CAP BLK 'X2' 15MM AC _47N 100V 10%CAP T&R RAD .2"FLM _47N 250V 10%CAP RAD POLYFILM BULK _82N 100V 5%CAP T&R RAD .2"FLM 100N 100V 5%CAP T&R RAD .2"FLM 100N 50V 10%CAP T&R BEAD X7R 100N 250V 10%CAP BLK RAD POLY FLM 220N 63V 10%CAP T&R RAD .2"FLM 220N 250V 10%CAP BLK RAD POLY FLM 330N 63V 5%CAP T&R RAD .2"FLM 470N 63V 10%CAP T&R RAD .2"FLM __1U 63V 20%CAP T&R 4X7MM .2"EL __2U2 63V 20%CAP T&R RAD .2"EL _10U 63V 20%CAP T&R RAD .2"EL _10U 450V 20%CAP BLK EL _22U 50V 20%CAP T&R 6X7MM .2"EL 82U 450V 20%CAP BLK 22X30MM 100U 25V 20%CAP T&R RAD .2"EL 100U 16V 20%CAP T&R 8X7MM .2"EL 100U 63V 20%CAP BLK 10X13MM EL 470U 63V 20%CAP BLK 12X25MM EL TRAYNOR DUAL FOOTSWCH 10' CORD-BULK _20K 15AAUDIO 9MM P32 100K 1B LIN 9MM P32 500K 15AAUDIO 9MM P32 25 X 20 X 50 2 MIL PLASTIC BAG SNAP ON 0.843" INSULATING BUSHING RUBBER BUMPER WITH WASHER -SMALLCORNER, 2 LEGS NOTCED BLK PLASTIC CLIP 205/187X032 18-22AWG DISCO/INS CLIP 250X032 18-22AWG DISCO/INSL CLIP 205/187X020 14-16AWG DISCO/INS RING TERMINAL 18AWG WIRE & #8 SCREW 250 MALE PCB TAB REEL 280 PLUG NEUTRIK NYS224 1/4" JCK PCB MT HORZ 1/4" JCK PCB MT HORZ GOLD T__ 1/4" JCK PCB MT HORZ GOLD TR_ 1/4" JCK PCB MT VERT STER RT SWT 36"90'RCA DUAL RED-WHITE PREFAB CBL RCA SNGL PCB MT HORZ EYELET SMALL 0.089 OD PLATED T2A 5X20MM FUSE 10" STRAP HANDLE,BLACK METAL ENDCAP 10-32 T NUT RUBBER GROMMET #2183-034-BLK Qty. YS # 1 1 1 1 1 1 6 10 1 1 6 1 4 3 2 1 1 2 1 1 1 2 1 3 3 2 1 1 2 1 3 1 1 3 1 4 1 1 5 1 2 2 2 1 2 1 1 1 4 13 1 1 2 1 1 1 4 2 5 1 2 4 8 5 2 2 1 16 1 3 1 1 1 1 2 13 1 1 6 4 3438 3552 3810 8430 8638 3428 8264 8910 8900 YCV40POP 3674 8701 8800 8890 3830 3850 4599 5299 4748 2008 4817 2019 4852 2022 4821 4891 4822 4726 4823 4913 4824 4631 4808 4847 4827 4828 4663 4829 4983 4831 4833 4840 4868 4834 4927 4586 4838 4942 6120 4776 4851 4668 4841 6126 6145 4842 4843 4844 4845 3610 3700 3537 8865 8741 8832 8807 8801 8829 8755 8785 8722 8809 8756 8727 8843 8786 8862 8770 8905 3741 Description IEC PWR SOC W/.205TAB &FUSE 10A250V NYLON SPRING CLAMP 4" NYLON CABLE TIE YCV40 CHICKEN-BEAK KNOB AP MIXER SERIES PUSH SW BUTTON GREY 8' 3/18 SJT AC LINE CORD REMOVABLE YBA200/YCV LOGO EMBOSSED ALUMINUM YORKVILLE PRODUCT MANUAL YORKVILLE WARRANTY CARD 2-YR UNLTD. YCV40/WR/T POINT OF PURCHASE BOOK 9 CIR CABLE HOLDER .098 4-40 KEPS NUT ZINC 6-32 KEPS NUT ZINC 1/4-20 CAGE NUT C79-88142027 TO218 PREGREASED MICA 56-78-2AP TO-220 PLASTIC TRANSISTOR INSULATOR 22AWG SOLID SC WIR T&R JMP 24AWG SOLID SC WIR RAD JMP 2.0W 3R9 5% T&R 1.0W 10R 5%FLAME PROOF T&R RES 1/4W 47R 5% T&R RES 1/8W 100R0 1%FLAME PROOF T&R RES 1/4W 100R 5% T&R RES 1.0W 220R 5%FLAME PROOF T&R RES 1/4W 470R 5% T&R RES 1/4W 620R 5% T&R RES 1/4W 820R 5% T&R RES 5.0W 1K 5% BLK RES 1/4W 1K 5% T&R RES 1.0W 1K 5% T&R RES 1/4W 1K5 5% T&R RES 1/2W 2K 5% T&R RES 1/4W 2K 5% T&R RES 1/4W 2K2 5% T&R RES 1/4W 4K7 5% T&R RES 1/4W 6K8 5% T&R RES 1/2W 8K2 5% T&R RES 1/4W 10K 5% T&R RES 1/4W 10K 5%MINI T&R RES 1/4W 18K 5% T&R RES 1/4W 27K 5% T&R RES 1/4W 33K 5% T&R RES 1/4W 36K 5% T&R RES 1/4W 47K 5% T&R RES 1/4W 47K 5% .2"U T&R RES 1/4W 82K 5%MINI T&R RES 1/4W 100K 5% T&R RES 1/4W 100K 5% .2"U 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 2.0W 220K 5%10MM BODY T&R RES 1/4W 220K 5% T&R RES 1/4W 220K 5%MINI T&R RES 1/4W 249K 1%MINI T&R RES 1/4W 330K 5% T&R RES 1/4W 470K 5% T&R RES 1/4W 1M 5% T&R RES 1/4W 2M2 5% T&R RES 10" 9C-26AWG RIB 3/4" NOTCH 0.1" RELAY 2C 01AMP DC24 015MA PC-S ACC# 4EB3C1B LONG REVERB 4-40 X 5/16 PAN PH MS JS500 4-40 X 1/2 PAN PH MS JS500 6-32 X 1/4 PAN PH TAPTITE JS500 6-32 X 5/16 PAN PH MS JS500 6-32 X 3/8 PAN PH TAPTITE JS500 6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA #6 X 5/8 PAN PH TYPE A JS500 BLACK #8 X 3/4 OVAL PH TYPE A BLACK OXIDE #8 X 1" PAN QUAD TYPE AB B/O 10-32 X 1/4 PAN PH TAPTITE JS500 #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 PH MS JS500 10-32 X 1 1/4 PAN QD MS JS500 BLACK #10 X 1 1/2 PAN PH TYPE A JS500 1/4-20 X 1 5/16 TRUSS PH MS JS500 YORKVILLE PRODUCT SCHEMATIC .5 SPACER ID-.171 OD-.25 #912-500 Qty. 1 4 14 11 4 1 1 1 1 1 4 2 4 4 2 2 58 1 1 2 3 2 2 2 2 2 2 1 1 2 5 2 1 5 2 1 2 10 1 2 5 1 2 9 1 1 11 1 1 3 5 1 2 4 1 2 3 6 1 2 2 1 18 2 11 3 4 11 2 16 4 25 2 4 2 4 4 4 1 4 YS # 3865 3858 7081 8482 8488 3511 8491 8820 8817 3522 3698 3731 3732 3733 12AX7 EL34 1324 1324M Description 1/2 PLASTIC HEX SPACER #6 3/4 PLASTIC HEX SPACER #4 12" 8R 60WPGM SPKR CELEST VINT30 3/8 1D FLAT WASHER 3/8 INT TOOTH LOCKWASHE ZINC #6 FLAT WASHER NYLON #10 SPLIT LOCK WASHER BO #8 FLAT WASHER JS500 #10 FLAT WASHER FOR 3/16" BOLT DPDT MINI PC VERT SNP ALT SPST ROKR SW QUIK 180" AC PWR BL/BL SPRING RETAINER FOR OUTPUT TUBE 9 PIN PC MOUNT TUBE SOCKET BE 8 PIN PC MOUNT TUBE SOCKET 12AX7 DUAL TRIODE PREAMP TUBE EL34 E.H. EARLY MULLARD STYLE YCV40 POWER 120VAC 60HZ XFMR YCV40 OUTPUT XFMR Qty. 11 7 1 1 1 2 8 4 8 4 1 2 3 2 3 2 1 1

Block Diagram for YCV50

MODEL TYPE: YS1003

DESIGNED AND MANUFACTURED BY YORKVILLE SOUND

SPLITTER

PREAMP

12AX7

V3

12AX7

V2

12AX7

V1

EQ Boost Mono 1/4-inch Treble/Bass/Mid Preamp V1:A Ch. 2 Volume Preamp V2:A

DISCONNECT POWER WHEN REPLACING TUBES DÉBRANCHÉ L'APPAREIL AVANT DE REMPLACER LES LAMPES

POWER

EL34
V5

EL34
V4

0 dB

Input

Channel Select K1 EQ Treble/Bass/Mid Preamp V1:B Preamp V2:B

Channel Select K1

Pre-Amp Out

Ch. 1 Volume

Amp In

Reverb Drive U2 B Accutronics © 4EBC1B

Reverb U1 B Reverb Rtn Master Volume Splitter V3

Power Amp V4 V5

External Speaker Out

+ External Speaker Out

12-inch Speaker YS#7081 8-ohms

-

Channel Select Boost

+

Footswitch

BLOCK-DIAG-ycv50-1v20.ai

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

1

K2:B RED +249Vdc W20

C34 4N7 R56 1/4W 47K

250V

R58 1/4W 220K
.

1

R57 1/4W 220K
.

50V

FOOTSWITCH +249Vdc K1:C
R88 1.0W 1K
Mini

T

R

S .

R1 1/4W 113K

C37 1N5

J2
2

2

Gold Gold 4K7 1/4W R99

R28 1/4W 10K

R15 1/4W 47K

3

W2

W3

100V

R85 1/4W 47R

+162Vdc
63V

R84 1/4W 100R

+1.2Vdc
RING R3 1/4W 1K5 R2 1/4W 1M C23 47N

M

400V

Q3 MPSA06 R111 1/4W 1K 50V Q6 BC550C

C45 100N

50V

U2:A 100V

CLEAN VOLUME

CHANNEL
DOWN UP DOWN UP

50V NE5532N R109 1/4W 100K R37 1/4W 100K C66 220P 100V

22U C2

R60 1/4W 620R

P8:A

TREBLE

4148

R36 1/4W 100K

2X_TRIODE_HCT {Body}

100K
1B C35 220P C24 22N R22 1/4W 100K R23 1/4W 100K

D2

5103 TO92

C56 22U
3

YELLOWYELLOW

R4 1/4W 47K

PRE-AMP 12AX7A V1:A

R18 1/4W 113K

LD5 CHNL2

400V

5908 GRN

100V

J1

T -

R -

S -

C1 1U

100V 15A

S5:B

R19 1/4W 470K

R5 1/4W 220K

MINI

C22 47N

100V

+1.2Vdc
DOWN UP DOWN UP R26 1/2W 2K 15A 63V

C4 22U

BASS

R20 1/4W 100K

W1

W4

M

P7:A

M

P9:A

C70 22U

4

50V

R21 1/4W 100K

TO92 5101

R30 1/4W 2K2 5907 YEL

C68 100N

15A

S5:A

LD3 CHNL1

BLACK

BLACK

500K

500K

V2:B PRE-AMP 12AX7A

TO92 5103

R31 1/4W 10K

J4

50V
4

C33 1N

R112 1/4W 27K

C71 470P

Q11 MPSA06

R29 1/2W 2K

+158Vdc

C16 47N

250V

R61 1/4W 620R

PRE-AMP-OUT

20K
P6:A

BRIGHT
50V R16 1/4W 1M R17 1/4W 1K5

R108 1/4W 10K

S6:B

S6:A

22U C6

MID

C15 22U

M

T 50V 4148 R25 1/4W 10K Gold

R .

S .

+249Vdc
R11 1/4W 113K 1000V C32 470P

6

K1:B
100V

R38 1/4W 100K

K1:A

D1

J3
R59 1/4W 10K R107 1/4W 10K
6

400V

C82 470P

+249Vdc
R6 1/4W 249K
.

1B R13 1/4W 33K C19 100N
.

400V

C80 1N

159Vdc PRE-AMP 12AX7A V2:A

250V

M

DOWN UP

DOWN UP

C81 1N

P2:A TREBLE

R14 1/4W 100K
RAD

Q2 MPSA06 Q7 BC550C 5103 TO92 R34 1/4W 2K2 63V TO92 5101 R32 1/4W 10K

R83 1/4W 100R

R82 1/4W 47R

100K

U1:A C3 22U 50V NE5532N

BOOST S4:A S4:B

R27 1/4W 2K2 5906 RED

15A

R8 1/4W 120K

M

P1:A DRIVE 0.8Vdc

12AX7A
50V

1.2Vdc
C21 47N

M

C83 4N7

P3:A BASS

250V

R105 1/4W 1K

R9 1/4W 120K

PRE-AMP

15A

100V

15A

500K P5:A MASTER
R24 1/4W 47K C36 2N2 R62 1/4W 270K

C25 100N

100V

8

C14 22U

500K

C69 2U2

400V

200V

500K

C65 470P

R39 1/4W 100K

C17 2N2

C18 1N5

R114 1/4W 100K

50V

100V

LD4 BOOST

7

116Vdc V1:B

C20 47N

R40 1/4W 27K

MINI

C46 1N

50V

PWR-AMP-IN

K2:C

C67 470N

5

K2:A

5

7

8

R12 1/4W 1K5

63V

R10 1/4W 120K

100V

R7 1/4W 1K5

C31 1N

63V

M

C26 330N

22U C7

C27 470N

15A

20K P4:A MID

R64 1/4W 47K

400V

R33 1/4W 47K

RAD

M

R51 1/4W 470K 8

50V

9

4148

4148

U2:C VNE5532N R67 1/4W 10K C64 4N7 16V

16V

100U C9

MASTER VOLUME

D17 D16

V+

U2:B

+170Vdc PRE-AMP
12AX7A C47 10N M C49 22N V3:A R45 1/4W 1M R41 1/4W 220K
MINI

3682 W17

OUTPUT XFMR

9

4

20K
15A 100V

Val V4:A
R87 1/4W 820R R89 1.0W 220R
FLMP

R54 1.0W 1K

5

T 2

R -

S -

OUTPUT J5

Mini

-50Vdc
10

R55 1/4W 4K7

BLU GRN
3682 W15

R74 1/4W 2K2 0W5 1N5262B C13 100U C44 10U

4007 D11 250V

C52 100N 6399 YEL LD1

STANDBY
R65 1/4W 47K

REVERB SEND
250V J8

400V

R43 1/4W 82K

R91

C8 100U

DOWN UP

D14 51V0

6398 RED

LD2

R66 1/4W 47R

63V

63V

R48 1/4W 10K 15A

R47 1/4W 470R

36K 1/4W R113

1M 1/4W R73

36K 1/4W R75

+249V

-37Vdc

10R 1.0W FLMP

S3:B

S3:A

R97 1/4W 10K

P10:A

-36 to -38Vdc

3682 W14

+28Vdc

RED T1 1324M
3 4

10

REVERB

R70 1/4W 18K

R46 1/4W 1M

6467 10K NTC R63

R42 1/4W 220K

11

R53 1/4W 2K7

Q9 BC550C TO92 5101 20V0 D24

MINI

J7
R119 1/4W 18K

R44 1/4W 100K

10R 1.0W FLMP

R92

20K REVERB RTN P11:A

1

-38Vdc -36 to -38Vdc

BLK
T R S -

PRE-AMP
12AX7A

M

V3:B

BRN
R90 1.0W 220R
FLMP

EXTENSION J6

11

1N5250B 0W5

R52 1/4W 2K2 100V R71 1/4W 10K

C48 100N

100V

C50 22N

400V

R86 1/4W 820R

.

+415Vdc
R68 1/4W 120K

200V

2N2 C75

C51 82N

100V

R49 1/4W 4K7

3 RED 1

R103 1/4W 470K

R50 1/4W 330K

3682 W28

4007 D8 1 4007 D9 4007 D10 2 U3:A 6 5 250V R81 1/4W 2M2 4 U3:B 4007

V+

12

R35 1/4W 1K5

SPST Switch W9 F1 T2A S7

3682 3682 W8

D7

C11 100N

8

Transformer

3682 W26

R98 1/4W 330K

V5:A Val +168Vdc

OUTPUT

3682 W18
12

.

U1:B U1:C 50V 22U C12

V10MM

D3 4007 D4 4007

GND

275V

13

C53 22N

GRY YEL GRY
6 7 3682 W12

1N5240BRL 0W5 D13 10V0

C10 22U

T2 1324

5

W13

S

R69 1/4W 120K

6731 TO220

50V

3682

G

R104 2.0W 150K

RED 4

+33Vdc
IN

+24Vdc
OUT

D12

BLK

Q1 7824

4007

6880 4N35

Q8 IRF830
D R102 1/4W 470R

NE5532N

.

4 R72 1/4W 1M C63 47P 100V
13

4007 100V D5 4007 C38 470U D6 63V

C28 220N

IEC_RECT

BLK 2
W11 3682
14

25V

Q12 BC550C 5101 TO92 4148 D15 R101 1/4W 2K2 R100 2.0W 3R9

M613 REVISION HISTORY MODEL(S):RED 3682 W19 10K {T} 4520 P12 M BIAS

250V

C54 4N7

C55 82U

8

R110 2.0W 220K

10MM

W10 3682

W16 3682

250V

GRN GRN
3682 W27

C84 220N

4148

3Vac

3Vac

D23

+410Vdc +249Vdc

NA: BIAS 350 mV ACROSS R91 AND 350mV ACROSS R92 CE: BIAS 300 mV ACROSS R91 AND 300mV ACROSS R92

12AX7A

Val V1:C V2:C R93 5.0W 1K

V3:C R96 1/8W 100R0 R95 1/8W 100R0
FLMP

V5:B

V4:B

R94 8K2 1/2W R106 1/4W 100K

R94B 8K2 1/2W

15

FLMP

{Voltage} {Body} 2X_TRIODE_HCT 2X_TRIODE_HCT

Q10 MJE340 R79 1/4W 47K 63V 63V 1N5262B 0W5 D22 51V0 450V D21 51V0 Q4 MPSA56 5104 TO92 Q5 MPSA56 5104 TO92 R80 1/4W 47K

C29 220N

450V

450V

MJE340
16

450V

1N5262B 0W5

C30 220N

IRF830 MPSA06

R78 1/4W 16K

+400Vdc

W21 3682

C39 10U

C40 10U

C60 10U

1N5262B 0W5

D20 51V0

C41 10U

-37Vdc

-38Vdc

# 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 3700_DRW

YCV50 DATE VER# DESCRIPTION OF CHANGE SEPT-23-2004 1.00 GT:DERIVED FROM M581 V11.00 OCT-15-2004 2.00 GT: PC#6748 R101 -> 2K2 (4847), R55 -> 4K7 (4827), D24 -> . . 20V0 (6465), ADD R104: 150K/2W (4790) 14 . . Increased route cutaway on preamp board . . R53->3K9 (4850), R62->270K (4879), C19->100N (5865) DEC-02-2004 . GT:PC#6776 MOVED TOP MULTIPLE TO ADD ZIPPER MAR-04-2005 2.10 GT:PC#6836:R78 27K #4833 --> 18K7 #5021 for bias APR-26-2005 2.20 GT:PC#6865:STDBY FIX, ADDED #4599 x 3 AND #5299 x 1 . . GT:PC#6889: X61 #4599 --> 1K #4823 RESISTOR MAY-27-2005 3.00 GT:PC#6886:ADD #4520 TRIMPOT 10K, R78->#4876 16R . . AH: Moved some parts, Autoinsert needs more space . . PC#6937, MODIFY TUBE SOCKET ROUTING AND DRILLING . . PC#6965, MOVE ARC TRACE AWAY FROM TUBES 15 . PC#6967, INCREASE CLEARANCS NEAR OUTPUT TUBES . NOV-25-2005 . PC#7041:GT:UPDATED BIAS NOTE FOR R91&R92 DEC-14-2005 3.01 PC#7053:GT:R53 4850 3K9->4864 2K7, NEW BIAS FOR CE . BALVINDER CORRECTED TESTNODE PADS 4.00 . SPACED W8 TRACE 6MM FROM SCREW HOLE . . UPDATED K1,K2 FOR CLINCH . MAY-17-2006 . PC#7125:GT:CHANGE #3914 RCA JACK TO #6541. . . PC#7091:ENLARGE HOLE SIZE FOR #3522 KINK LEADS (S3 TO S6) . . 16 D N V D N V N D V D N V Product

C57 100N

C5 100U

450V

.

.

50V

R76 1/4W 27K

17

"STYLE_P32"
A

G D S TO-220
B

E C B TO-126
C

EBC TO-92

C B E TO-92
D E F G H I J

C61 22U

C62 22U

1N5262B 0W5

D19 51V0

R77 1/4W 27K

50V

YCV50
PCB# M613 Sheet 1 of 2
17 T U V

1N5262B 0W5

D18 51V0

TUBE GUITAR AMP

Rev: 4V00 Date: Mon Sep 11, 2006 Filename: M613-4V00sch.sch2002
L M N O P Q R S

K

ORIGIN MULTIPLE DON'T MOVE

BlankSize - 18600x12800
4148 D17 4148 D16 47K R64 47R R66 10K R97 10K R67 R38 R39 R15 R83 470N C67 100N 470P C65 C45 100N 220P NE5532N R22 100K 27K R112 100R 100K 100K X56 D2 4N7 R85 100K 100K X26 2K 1/2W R33 C83
-

BlankSize - 18600x12800
R40 C68 C66 U2 R72 R68 R71

StepAndRepeat - [email protected]@6.400

X19 47K

C22

C33

47R

R24 R23

X52

R19

4N7

47K

R26

X18

X53

R36 R37

C46 R25

R88

X17

R109

P1

500K
15A

500K C 47K 100K X7 100K C71 470P
15A

100K
1B

500K
15A

R29

P5
X4

TREBLE
RELAY 2C NC 4424

X3

P3
4425

CLEAN VOLUME
500K X21
15A

TREBLE
100K X22
1B

20K R28 R31
15A

500K
15A

R65

47K 20K
15A

R35

C57 100N

10K

470K X2

X11 2K 1/2W

R43

1K

R70 18K 18K R119

C24 22N 400V

2N2

1N 10K X10

1K 1.0W

X28 X29

47N

2K2 10K

220K

47N

R57

R16 R58

C49

R13

R44 X54 1M

R105

R47 R45 R48 R62

R49

82K

X1

470P C32

X63

R5

MPSA06

MPSA06

BC550C

22U 50V

33K

47N

47K

220K

1M 220K X49 1K5 100K

R46

63V

113K

R6

R9

470P

C31 R10

R1

X14

YELLOW W3 1K5
RING

R114 100K

100N

R8 120K

120K

249K

X15

1N 120K

330N

C26

R7

TO W1

12AX7A

C81

C48

X32

W4

V1
EL34EH OUTPUT
R93

R32 R82 R27

J1

1N

INPUT
RING-SW

TO W2 BLACK

W20 C17 2N2

3674

C18 1N5

V2
X60 R73 D14 3674 GREEN W23 R106 100K W24 TO W7 R74

X33

X25

V3
C52

W5

R87 R86 R42 R77

R76

R91

TIP-SW

R41 R79

R90

X45 10R 1.0W 820R 820R 220K 27K X44 27K

GREEN W2 TO W3 YELLOW

220K 47K

4007 C40 RT V C44 10U 63V R110

D11 D7 D8

220R 1.0W

16K

220R 1.0W

3984 X47

1K 5.0W Val

W17

EXTENSION

SHEAR

X46 10R 1.0W 47K

220N

220N

D21 D20 D19 D18

MPSA56

MPSA56

Val

R52

R100 100U Q8 C5 25V 4N35 6880

W14

R63 Q9 Q1

X59

330K 470K

10U 450V X38 X41

W6 TO W29
7

-

4/4

C62

C60

-

2K2

3R9 2.0W

470R 10V0 4007

R80

8K2 1/2W 150K 2.0W

W18

2K2

100R0

100R0

R92

20V0

R102

D15

D12

XFMR W19
SHORT AXIS

R95

R96

D13

R53

RED CLINCH ORIGIN

C84

Q12 BC550C

D24

W21

R94B

METAL BACK

INSERT ORIGIN

VCD

LONG AXIS

ETCH GUIDE

Pcb Mech M613 4V00 SEE LAYOUT DOCUMENTATION

Top Assy M613 4V00

SHEAR

5882

250V 220N

U3 2M2 R81

W25

RT V C39 C55

470U 63V C38

4007

D5

W13

+24V

OUTPUT

TO W24

J5

5882

51V0 D22

10U 450V

RT V

J6

C28

D23 4148

4007

V4

V5

2K7

250V 220N

D3

W12

W7

4V00

W15

330K R50

4148

BC550C X43 X40

MJE340 Q10

RED TO W20 RT V

82U 450V

BLACK TO W6

4007

BROWN

51V0 51V0 51V0 51V0

W39 RT V

C30

Q5

Q4

RT V

10U C41 450V

RT V

RT V

4007 W29

D6 D4

W11 WHITE GREY

BLACK GREEN

7

GREEN

M613 OUTPUT
SHEAR

XFMR BLUE

50V 22U

50V 22U C61

10K

BIAS C29 R R9 103 8 R101

TO220

C13

10U 450V

220K 2.0W

4007

RT V W35 3984

10K

6730 IRF830

6731 7824

8K2 1/2W R104 R94 100U 63V

RT V

4007

TO W4 BLACK

R89

4007

D10

W26

W28 RED

RT 22NV 6435 275V

C53

LINE NEUTRAL W10

W8

C2

22U 50V

W30

M613 4V00

YCV50 2/4

C54 4N7 250V RT V 6451

OUTPUT XFMR BLACK

3674

W1

EL34EH OUTPUT

X48

W37

R78

XC163 Z352

P12

X34 1M 51V0 2K2

R113 36K 36K R75

RED
D9

GREEN W27

W16 GREEN

BLACK W9

5865

100N

4007

3674

113K

R11

3732

1N5 C37

R12 R21

C1

100N

10K 47R 2K2

C16

C19
5865

2K2 R34

X16

1U

82N

1K5 1M 47K

J8 6541

C82

RED TO W25

1K5 X24 12AX7A

R17

W34

22N 400V C50

C47 2N2 C36 470K R51

RCA REVERB SEND

RCA REVERB RTN

Gold Gold Gold J2 FOOTSWITCH X57

7

G3

G3

Q2 3732

Q11

Q3 1K R111

R55 4K7

470N

Q6

113K

4K7 620R

X55 470R 1M 10K 270K X31

100K

10N

50V

G1

G2

G1

G2

S4 X5

CHANNEL S5

S6 R18

22N 400V

2U2 63V

5841

X6

C27

C51

S3

. . Gold J3 PWR-AMP-IN R60 620R 10K 10K

7

PRE-AMP-OUT J4 R107 R108

M613 4V00

YCV50 3/4

NCL

NCR

J7

SIG

SIG

NCL

NCR

NCL

NCR

C70 22U

MPSA06 BC550C

CL

CR

CL

CR

CL

CR

Q7

3732

3522 7

PRE-AMP R3 R2 R4

C69

C15

R61

NOL

NOR

C25

X64

X39

WHT

NOL

NOR

WHT
NOL NOR

X61

X50

PRE-AMP

220P C35

SPLITTER

12AX7A

P10

1K 1.0W

DRIVE

BOOST WHT
NOL NCL CL NOR

MASTER

P2

BASS

MID

R56

100K R14

10K

X13

1K5

P4

P9

P8

BRIGHT WHT 3522

P7 BASS MID

P6

C56 22U 50V

100N

C21

C34 4N7 3522

X65

22U 50V

C75

P11 REVERB

R54

1N

C20

R30

4425

22U 50V

100U 16V

120K

C80

RELAY 2C NC NO 3522
NCR CR

4425

4423

4425

4424

4425

4423

4423

X42

X62

C7 C8

50V C3 MASTER VOLUME 20K 15A 22U 50V 4423 C14 C6

100N C11

X8 4148

47N

X12

47N

R20

1N

X23

R59

K2

X20

C4 22U 50V

100K

X9

K1

C23

D1

22U

R69 C10 22U 50V X27

47P C63 20K
15A

4148

CHNL2

1M 120K 10K

27K

BOOST

CHNL1

YEL

GRN

NE5532N

+

SHEAR

+

LD4 RED

5907 LD3

100R R84

5908 LD5 R99 4K7

M613 YCV50 4V00

1/4

C64 C9 100U 16V

U1

C12 22U 50V

+

-

STANDBY YEL LD1 6399 ON RED LD2 6398

C

NO

STANDBY

X30

6541

X51

3921
TIP

SL EE VE

W36

X58 X37 X36 X35

M613 REVISION HISTORY MODEL(S):# 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 YCV50 DATE VER# DESCRIPTION OF CHANGE SEPT-23-2004 1.00 GT:DERIVED FROM M581 V11.00 OCT-15-2004 2.00 GT: PC#6748 R101 -> 2K2 (4847), R55 -> 4K7 (4827), D24 -> . . 20V0 (6465), ADD R104: 150K/2W (4790) . . Increased route cutaway on preamp board . . R53->3K9 (4850), R62->270K (4879), C19->100N (5865) DEC-02-2004 . GT:PC#6776 MOVED TOP MULTIPLE TO ADD ZIPPER MAR-04-2005 2.10 GT:PC#6836:R78 27K #4833 --> 18K7 #5021 for bias APR-26-2005 2.20 GT:PC#6865:STDBY FIX, ADDED #4599 x 3 AND #5299 x 1 . . GT:PC#6889: X61 #4599 --> 1K #4823 RESISTOR MAY-27-2005 3.00 GT:PC#6886:ADD #4520 TRIMPOT 10K, R78->#4876 16R . . AH: Moved some parts, Autoinsert needs more space . . PC#6937, MODIFY TUBE SOCKET ROUTING AND DRILLING . . PC#6965, MOVE ARC TRACE AWAY FROM TUBES . . PC#6967, INCREASE CLEARANCS NEAR OUTPUT TUBES NOV-25-2005 . PC#7041:GT:UPDATED BIAS NOTE FOR R91&R92 DEC-14-2005 3.01 PC#7053:GT:R53 4850 3K9->4864 2K7, NEW BIAS FOR CE . 4.00 BALVINDER CORRECTED TESTNODE PADS . SPACED W8 TRACE 6MM FROM SCREW HOLE . . . UPDATED K1,K2 FOR CLINCH MAY-17-2006 . PC#7125:GT:CHANGE #3914 RCA JACK TO #6541. . . PC#7091:ENLARGE HOLE SIZE FOR #3522 KINK LEADS (S3 . . TO S6) D V N D V N D V N D V N D V N D V N D V N D V N D V N D V N D V N D V N D V N D V N D V N D V N D V N

SEE LAYOUT DIAGRAM
M581 DRILL HISTORY MODEL(S):# 1 2 3 4 5 6 DATE D D D D D D YCV50 VER# DESCRIPTION OF CHANGE V N V N V N V N V N V N M581 PENDING CHANGES YCV50 PENDING CHANGE X X X X X X

PRODUCTION NOTES
1. RTV MUST BE ADDED TO THE FOLLOWING CAPS 5. R63 #6467: APPLY THERMAL C1,C16,C19,C17,C70 BETWEEN C84,C28,C60,C15 COMPOUND GENEROUSLY BETWEEN C49,C50, ADDED TO C15,C7,C8,C3,C9 BETWEEN PART AND HEATSINK C56,C14,C6,C10,C4,C2 AND C12 6. NA: BIAS 350mV ACROSS R91 2. C53 IS 22N FOR BOTH NORTH AMERICA AND CE AND 350mV ACROSS R92 3. C3,C7,C6 MUST BE LOW PROFILE PT#5631 CE: BIAS 300mV ACROSS R91 4. C8,C9 MUST BE LOW PROFILE PT#5879 AND 300mV ACROSS R92

MODEL(S):# 1 2 3 4 5 6 PC# PC PC PC PC PC PC

*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY M613 POT LIST YCV50 TUBE AMP MODEL(S):REF
P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 .

FUNCTION PART# KNOB
DRIVE TREBLE BASS MID MASTER MID BASS TREBLE CLEAN VOLUME MASTER VOLUME REVERB . #4425 #4424 #4425 #4423 #4425 #4423 #4425 #4424 #4425 #4423 #4424 . #8430 #8430 #8430 #8430 #8430 #8430 #8430 #8430 #8430 #8430 #8430 .

AS OF
11/00 11/00 11/00 11/00 11/00 11/00 11/00 11/00 11/00 23/04 11/00 .

"STYLE_P32" 3796 on this device only. Z352

Lots of goop on the thermistor.

2 of 8701 2 of 3850 2 of 8829 - to hold z352 in place PCB 2 of 8741

LEAD/PIN REFERENCE IRF830 MJE340 MPSA56 MPSA06
COM1 COM2

BC550C

NC1 NO1

NC2 NO2

4N35 G D S TO-220 ECB TO-126 EBC TO-92 C B E TO-92
G2 P 3 H 2
1 8 4 5

NE5532N
G1
6 7

H
4

H
5 6

3700_DRW
1P
7 8

NC H

2K

3

1G 1K

2G 2 2P
1 9

K

HT

YCV50BLUE m613 Service Update for V2.10 boards
April 2005 boards have been reworked as described in this document. To address PC#6865 a 22AWG wire, part # 3947 jumper, needs to be soldered from P10 to S3 on the bottom side of the board as shown:

YCV50BLUE m613 Service Update for V2.10 boards (additional)
1. First complete the Service fix PC#6865 as described in the pdf: Service_YCV50-m613_Update_for_V2.10_PC#6865.pdf To upgrade the unit from v2.10 to v2.20 PC#6889, complete the following: 2. Replace jumper X61 with a 1K resistor, #4823:

TO _E Y8

EYE8

IN P U T

G R E EN

T O E Y E 9 ME T A L _ B A C K
+ 2 4 V WC 8 S UPPLY

RED
WC 11 RED
O U T P UT -T U B E

TO EY4

EY9 RED C 41
EYE5

GR AY
WHIT E

W H IT E

WC 7 WC 2
250VAC

BLK

RED

WC 4 WC 1 WC 3 WC 6

EYE6

GR E E N WC 9

O U T P UT -T U B E

GRE EN GR EE N

WC 5
GR N

6L6B

GR N

RED
JB5

EY2 EY4 BLK TO EY5 F E X T E N S IO N

G rn/Y el wire soldered to ground lug

1324E

Y C V 5 0C E E X P OR T AC W IR IN G

April 14/05
By G.K

wiring-YCV50-CE-AC

F

RED

TO E YE 6 RE D RE D JB6

GR N WC 14 WC 15 BLK

T O OUT P UT T R A NS F O R ME R T O OUT P UT T R A NS F O R ME R

RED

#3638

F

O UTP UT

C 53

680N

B L UNE UTR AL E BROWN LIVE B LA C K B LA CK

WC 10

F

F

G RAY G R AY

GR AY

BR OWN WC 13 WC 12 B LU E

BROWN

6L6B

BLUE

GREEN B LAC K

1324M

B LA C K

EYE7

TO _E Y7

JB1

Y E L LO W

V4