U.S.A.

Yorkville Sound Inc.4625 Witmer Industrial Estate

Niagara Falls, New York14305 USA

Voice: (716) 297-2920Fax: (716) 297-3689

WORLD HEADQUARTERS

WEB ACCESS: http://www.yorkville.com

CANADA

Yorkville Sound550 Granite CourtPickering, Ontario

L1W-3Y8 CANADA

Voice: (905) 837-8481Fax: (905) 837-8746

Quality and Innovation Since 1963Printed in Canada

SERVICE MANUALYCV20 - Series 2

Traynor Custom Valve 20

TYPE: YS1006

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.

# Part# DescriptionLabeled Components

1 8260 TRAYNOR LOGO

2 7079 12" 8R 50WPGM SPEAKER CELESTIO

Series 2 (incl. WR version) 3 8461 TRIM CLIP (PLATED BLK ZINC)

4 Z354 YCV20 GRILLE* (‡ cuurent model only)

5 8456 10.0" STRAP HANDLE, NICKEL COVERS

6 TFS-2B TRAYNOR DUAL FOOTSWCH 10' CORD

7 3428 AC LINE CORD - #3474(EURO)

8 3537 ACC# 4EB3C1B LONG REVERB

9 3890 36" PREFAB. CABLE (RED/BLACK)

10 8770 1/4-20 X 1 5/16 TRUSS PH MS JS5

11 8504 CORNER, 2 LEGS NOTCED LIP NICKEL PLATED

12 8521 RUBBER BUMPER WITH WASHER VERYS

13 6397 JEWELED PILOT LAMP AMBER REG

14 8430 CHICKEN-BEAK KNOB

15 8633 ROUND PUSH BUTTON 1/4" BLACK

16 3921 1/4" JCK PCB MT VERT STER RT SWT

17 3438 230 AC RECEPTACLE FUSE & 250 T

18 3698 SPST ROKR SW QUIK 180" AC PWR B

19 3450 & 3450NUT 1/4" ALL GOLD PC MNT JK SKT

20 3436/8661 DPDT PUSH SW B4 MAKE/BUTTON KNOB GREY

21 3923 XLR MALE PCB MT HORZ MTHOLE-V SNAP

22 7025A OR 7025B 12AX7 DUAL TRIODE PREAMP TUBE

23 6BQ5 6BQ5 PENTODE OUTPUT TUBE

24 7078 (WINE) 12" 8R 25WPGM SPEAKER CELESTION

25 3552 NYLON SPRING CLAMP

*NOTE: Replacement grilles are 'Special-Order' and are only available while the model is in production.

‡ Grilles & support replacements are for CURRENT models only

TUBES

43

1

2

13

12

22/23

17

5

16

10

76

8/9

11

1415

18 19

Wine Red Version Speaker24

20 21

Parts-Serv-YCV20-Series2-1v0.xls ftp.yorkville.com Speaker Enclosure

DISCONNECT POWER WHEN REPLACING TUBES

DÉBRANCHÉ L’APPAREIL AVANT DE REMPLACER LES LAMPES

POWER

6BQ5 V4

POWER

6BQ5 V5

PREAMP 12AX7

V1

12AX7

V2 SPLITTER

12AX7

V3

B l o c k D i a g r a m f o r YCV20 II D E S I G N E D A N D M A N U F A C T U R E D B Y Y O R K V I L L E S O U N D

+

-

+

-

Mono1/4-inch

Input

Footswitch

Channel Select

Boost

D.I. Out

Preamp

Ch 2Gain

Ch 1Gain

Ch 2Volume

Bright

Boost

ChannelSelect

ChannelSelectV1:A

PreampV2:B

PreampV2:A

PreampV1:B

0 dB

Splitter

Send RtnReverbAccutronics ©

4EBC1BV3:A

V4:AV5:A

PowerAmp

ExternalSpeaker Out

Headphones

YS#70798-ohms

12-inchSpeaker

InternalSpkr Defeat

100R5W

Blk

Grn

Treble/Bass/Mid

EQ

Ch 1Volume

Pre-AmpOut

Amp In

BLOCK-DIAG-ycv20-Series-II-1v30.ai

TYPE: YS1006

+

YCV20 - Series 2YS No. Description Qty. YS No. Description Qty.

6397 JEWELED PILOT LAMP AMBER REG V1 1 4612 1/2W 18R 5% T&R RES 35906 RED 3MM LED 1V9 20MA .4SPCER T&R 1 4817 1/4W 47R 5% T&R RES 46398 RED 5MM LED 1V5 20MA HIGH EFF 1 4912 1/4W 75R 5% T&R RES 16399 YEL 5MM LED 1V5 20MA HIGH EFF 1 2044 1/4W 101R0 FUSIBLE T&R RES 25907 YEL 3MM LED 1V9 20MA .4SPCER T&R 1 4692 5.0W 100R 5% BLK RES 25908 GRN 3MM LED 1V9 20MA .4SPCER T&R 1 4852 1/4W 100R 5% T&R RES 26825 1N4148 75V 0A45 DIODE T&R 6 2022 1.0W 220R 5%FLAME PROOF T&R RES 36438 1N4007 400V 1A0 DIODE T&R 9 4857 1/4W 220R 5% T&R RES 16461 1N5240BRL 10V0 0W5 ZENER 5% T&R 1 4713 1.0W 470R 5% T&R RES 16475 1N5262B 51V0 0W5 ZENER 5% T&R 3 4821 1/4W 470R 5% T&R RES 36871 MC7915CT TO220 N 15V0 REG V2 1 4980 1/4W 470R 5%MINI T&R RES 16872 MC7815CT TO220 P 15V0 REG V1 1 4799 1/4W 562R 1% T&R RES 25102 BC560C TO92 PNP TRANSISTOR T&R TB 2 4891 1/4W 620R 5% T&R RES 25103 MPSA06 TO92 NPN TRANSISTOR T&R TA 3 4673 1/2W 680R 5% T&R RES 25104 MPSA56 TO92 PNP TRAN T&R TA 1 4822 1/4W 820R 5% T&R RES 26730 IRF830 TO220 NCH MFET TN 1 4623 1/2W 1K 5% T&R RES 26882 TL072CP IC FET DUAL OP AMP 2 4913 1.0W 1K 5% T&R RES 15199 100P 100V 2%CAP T&R RAD CER.2"NPO 1 4791 1/4W 1K54 1% T&T RES 45197 220P 100V 2%CAP T&R RAD CER.2"NPO 3 4647 1/2W 2K2 5% T&R RES 15201 470P 100V 5%CAP T&R RAD CER.2"NPO 3 4847 1/4W 2K2 5% T&R RES 15206 __1N 400V 5%CAP T&R RAD .2"FLM 2 2035 1/4W 2K21 1%FLAME PROOF T&R RES 15208 __2N2 400V 5%CAP T&R RAD .2"FLM 4 4827 1/4W 4K7 5% T&R RES 25275 __3N3 100V 5%CAP T&R RAD .2"FLM 1 4982 1/4W 4K7 5%MINI T&R RES 15209 __4N7 250V 5%CAP T&R RAD .2"FLM 2 4828 1/4W 6K8 5% T&R RES 16451 __4N7 250V 20%CAP BLK 'Y' 10MM AC 1 4800 1/4W 10K0 1% T&R RES 25272 __6N8 100V 5%CAP T&R RAD .2"FLM 1 4829 1/4W 10K 5% T&R RES 135204 _10N 100V 10%CAP T&R RAD .2"FLM 1 5031 1.0W 10K0 5% T&R 25834 _10N 250V 20%CAP BLK RAD POLY FLM 1 4831 1/4W 18K 5% T&R RES 15210 _22N 100V 10%CAP T&R RAD .2"FLM 1 4840 1/4W 33K 5% T&R RES 15840 _22N 400V 10%CAP BLK RAD POLY FLM 2 4834 1/4W 47K 5% T&R RES 36435 _22N 275V 20%CAP BLK 'X2' 15MM AC 1 4848 1/4W 62K 5% T&R RES 15306 _33N 50V 10%CAP T&R BEAD X7R 1 4837 1/4W 82K 5% T&R RES 15224 _47N 100V 10%CAP T&R RAD .2"FLM 2 4838 1/4W 100K 5% T&R RES 75226 _68N 100V 5%CAP T&R RAD .2"FLM 1 4776 1/4W 113K 1% T&R RES 45212 100N 63V 5%CAP T&R RAD .2"FLM 10 4841 1/4W 220K 5% T&R RES 75314 100N 50V 10%CAP T&R BEAD X7R 3 4843 1/4W 470K 5% T&R RES 55865 100N 250V 10%CAP BLK RAD POLY FLM 1 4880 1/4W 680K 5% T&R RES 15882 220N 250V 10%CAP BLK RAD POLY FLM 1 4844 1/4W 1M 5% T&R RES 75233 330N 63V 5%CAP T&R RAD .2"FLM 2 3610 10" 9C-26AWG RIB 3/4" NOTCH 0.1" 25629 _10U 160V 20%CAP BLK 10X13MM EL 1 3696 RELAY 1C 02AMP DC24 006MA PC-S 25631 _22U 50V 20%CAP T&R 6X7MM .2"EL 9 3700 RELAY 2C 01AMP DC24 015MA PC-S 15958 _22U 350V 20%CAP BLK 13X25 EL 6 3537 ACC# 4EB3C1B LONG REVERB 15618 470U 25V 20%CAP BLK 10X15MM EL 4 8865 4-40 X 5/16 PAN PH MS JS500 14

TFS-2B TRAYNOR DUAL FOOTSWCH 10' CORD-BULK 1 8832 6-32 X 1/4 PAN PH TAPTITE JS500 94423 _20K 15AAUDIO 9MM P32 1 8801 6-32 X 3/8 PAN PH TAPTITE JS500 24424 100K 1B LIN 9MM P32 2 8829 6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA 114425 500K 15AAUDIO 9MM P32 5 8837 6-32 X 1/2 ROUND PH MS JS500 3

713 25 X 20 X 50 2 MIL PLASTIC BAG 1 8757 #6 X 5/8 PAN PHIL TYPE A ZINC CLEAR 23976 SNAP ON 0.843" INSULATING BUSHING 2 8824 8-32 X 5/16 PAN QUAD TAPTITE JS500 28461 TRIM CLIP (PLATED BLK ZINC) 4 8722 #8 X 1" PAN QUAD TYPE AB B/O 48521 RUBBER BUMPER WITH WASHER VERYSMALL 4 8809 10-32 X 1/4 PAN PH TAPTITE JS500 253478 CLIP 205/187X032 18-22AWG DISCO/INS 5 8750 #10 X 1/2 PAN PH TYPE A ZINC 163489 CLIP 250X032 18-22AWG DISCO/INSL 2 8756 #10 X 3/4 PAN PH TYPE A BLACK OXIDE 103494 CLIP 205/187X020 14-16AWG DISCO/INS 2 8843 10-32 X 1 1/8 FLAT PH MS JS500 23601 RING TERMINAL 16AWG WIRE & #8 SCREW 2 8786 10-32 X 1 1/4 PAN QD MS JS500 BLACK 43682 250 MALE PCB TAB REEL 16 8862 #10 X 1 1/2 PAN PH TYPE A JS500 43498 1/4" JCK PCB MT HORZ 2 8770 1/4-20 X 1 5/16 TRUSS PH MS JS500 43528 1/4" JCK PCB MT HORZ GOLD TR_ 3 8905 YORKVILLE PRODUCT SCHEMATIC 13921 1/4" JCK PCB MT VERT STER RT SWT 1 3741 .5 SPACER ID-.171 OD-.25 #912-500 43890 36"90'RCA DUAL RED-WHITE PREFAB CBL 1 3865 1/2 PLASTIC HEX SPACER #6 93914 RCA SNGL PCB MT HORZ 2 3858 3/4 PLASTIC HEX SPACER #4 73923 XLR MALE PCB MT HORZ MTHOLE-V SNAP 1 7079 12" 8R 50WPGM SPEAKER CELESTION 13451 EYELET SMALL 0.089 OD PLATED 13 8482 3/8 1D FLAT WASHER 12471 T1A 5X20MM FUSE 1 8488 3/8 INT TOOTH LOCKWASHE ZINC 18456 10.0" STRAP HANDLE, NICKEL COVERS 1 8491 #10 SPLIT LOCK WASHER BO 68604 10-32 T NUT 6 8820 #8 FLAT WASHER JS500 48889 RUBBER GROMMET #2183-034-BLK 7 8817 #10 FLAT WASHER FOR 3/16" BOLT 83438 IEC PWR SOC W/.205TAB &FUSE 10A250V 1 3436 DPDT PUSH SW PCMT H BREAK B4 MAKE 13552 NYLON SPRING CLAMP 2 3522 DPDT MINI PC VERT SNP ALT 43810 4" NYLON CABLE TIE 6 3698 SPST ROKR SW QUIK 180" AC PWR BL/BL 18430 YCV40 CHICKEN-BEAK KNOB 8 3732 9 PIN PC MOUNT TUBE SOCKET BE 28504 CORNER, 2 LEGS NOTCED LIP NICKEL 8 3983 9 PIN PC MOUNT TUBE SOCKET 38633 ROUND PUSH BUTTON 1/4" BLACK 4 12AX7 DUAL TRIODE PREAMP TUBE 38661 BUTTON KNOB FLAT GREY 1 6BQ5 PENTODE OUTPUT TUBE 23428 8' 3/18 SJT AC LINE CORD REMOVABLE 1 1330 YCV20 POWER 120VAC 60HZ XFMR 18260 YCV40 LOGO EMBOSSED ALUMINUM 1 1330M YCV20 OUTPUT XFMR 18910 YORKVILLE PRODUCT MANUAL 18900 YORKVILLE WARRANTY CARD 2-YR UNLTD. 13674 9 CIR CABLE HOLDER .098 48800 6-32 KEPS NUT ZINC 58890 1/4-20 CAGE NUT C79-88142027 43796 ELASTOMER PAD TSIL 1.0X0.8 33850 TO-220 PLASTIC TRANSISTOR INSULATOR 34597 22AWG STRAN TC WIR JMP 24599 22AWG SOLID SC WIR T&R JMP 552037 1/4W 10R FUSIBLE T&R RES 24896 1/4W 15R 5% T&R RES 1

11 11

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

K

K

L

L

M

M

N

N

O

O

P

P

Q

Q

of

Filename:

PCB# Sheet 31

Product

Date: 7V00M647-7V00sch.sch2002

M647Sheet1Mon Sep 11, 2006 Rev:

YCV20of

Filename:

PCB# Sheet 31

Product

Date: 7V00M647-7V00sch.sch2002

M647Sheet1Mon Sep 11, 2006 Rev:

YCV20

+150V

GND

GND

GND

PL1

-15V

-15V

+15V

+150V

R8

1/4W 33K

X46

.W16

SPKR+

BLU

SCRN

.W20

SPKR-

BLK

+15VGND

R65

1/4W 2K2

R62

1/4W 4K7

GND

C65

50V

22U

+15V

R55

1/4W 47R

4148D6

R3

1/4W 1M

R56

1/4W 47R

C6150V100N

0.7Vdc

93Vdc

TL072C

83VdcC12

400V1N

GND

270Vdc

X39

PL21330M

GND

-15V

-15V

+15V

GND

GND

C4100V6N8

R91/4W

100K

GND

W22GRN

CHGND

.

93VdcC8

400V2N2

V1:B12AX7

R121/4WFLMP

2K21

W31YEL

IN

.W32YEL

IN

.

0.7VdcR14

1/4W 220K

1/2W 680R

R98

1/2W 680R

R97

R261/4W

47K

0.7Vdc

V2:B12AX7

+150V_RAW

V3:B12AX7

+150V_RAWR801/4W

470R

R81

1/4W 1M

S6:A3436

JACKS+

W14 .BLU

R241/4W

220K

C16100V47N

C17400V1N

C15100V100N

R75

1/4W 470K

1/4W

R74470K

R761/4W

820R

R735.0W

100R

.

1/4W

R10010K0

R291/4W

47R

R2

1/4W 1M

3682W2BRNPLATE

R84

1.0W 220R

FLMP

3682W1BLUPLATE

.W15

JACKS-

BLK BLK.W29

JACKS-

.

1/4W

R10110K0

U1:A

TL072CP

R301/4W

470K

C23100V220P

R491/4W

620R

50VC26

22U

22U

50VC6450V

22U

C63

C34100V100P

R631/4W

220K

C57100V

100NC54

100V

100N

Q75103

TO92

MPSA06

1/4W

6K8

R40

D34148

LD1CLN

GRN 5908

Q65103

TO92

MPSA06

K1:C

R88

1/4W 100K

R341/4W

10K

R441/4W

10K

R45

1/4W 10K

C22100V100N

Q85102

TO92

BC560C

R47

1/2W 1K

R381/4W

10K

C21100V100N

Q55102

TO92

BC560C

D2 4148

R96

1/2W

2K2

Q105104

TO92

MPSA56

R571/4W

470R

Q95103

TO92

MPSA06

R541/4W

4K7

C30100V220P

LD3BOOST

RED 5906

LD2OD

YEL 5907

R35

1/2W 1K

R591/4W

10K

C32100V10N

R601/4W

10K

C2750V22U

C2850V22U

NET00050

BOOSTS3:B3522

R331/4W

47K

R321/4W

47K

B ETO-92

BC550C

C

C5250V

4N7

B CTO-92E

MPSA56MPSA06

C663V

330NR17

1/4W 1K54

R16

1/4W 113K

R15

1/4W 1M

C2250V10N

R4

1/4W 1K54

C18100V

470P

P4:A

4425

M

15A500K

CLN DRV

K1:B

C3250V100N

C950V

22U

C10100V

3N3

C58100V

470P

R21

1/4W 1M

R6

1/4W 1K54

R7

1/4W 113K

R82

1/4W 1M

.

JACKS+BLUW30

V3:A12AX7

C1363V

330N

C45400V

22N

C44400V

22N

R771/4W

820R

1/4W562R

R103

1/4W562R

R102

P7:A

4425

M

15A500K

OD VOL

C24100V

22N

R271/4W

100K

R281/4W

100K

R851.

0W 220RFLMP

R481/4W

100K

K3:A

3696

3682W18BLKSPKR-

R95

1/4W MIN

I47

0R

K2:B

C3563V

150N

6541J6

REV RTN

R36

1/4W 47R

R39

1/4W 10K

R46

1/4W 75R

D44148

8V+

4V-

U1:C

R37

1/4W 100R

R42

1/4W 220R

R58

1/4W 4R7

.

8V+

4V-

U2:C

C31100V

100N

CH SELS2:A3522

W24GRN

CHGND

.

R61

1/4W 100K

C2550V

22U

R501/4W

620R

RIN

GJ1

FUNCTION

"STYLE_P32"

K3:B

103Vdc

PLATE8.0Vdc

C46250V4N7

103Vdc 270Vdc

0.8Vdc

C11400V2N2

NET00037

NET00057

R101/4W

220K

R111/4W

220K R89

1/4W 220K

89Vdc

V1:A12AX7

50VC39

33NW34BLK

INGND

.

BRIGHTS1:B3522

S1:A3522

BRIGHT

C47100V100N

R79

1/4W 82K

R831/4W

10K

3682RED

HI VW3

3682W17GRNSPKR+

S6:B3436

5.0W 100R

R99

3923

J9

V2:A12AX7

P1:A

4424

M

1B100K

TREBLE

C33100V

100N

R66

1/4W 220K

R521/4W

10K

R511/4W

10K

U1:B

TL072CP

C59100V

470PC29

100V220P

R531/4W

4K7

S3:A3522

BOOSTR43

1/4W 4K7

C20100V

100N

C19100V

100N4148D1

D54148

S TRJ2

S TRJ8

D SGTO-220

IRF830

C150V

22U

C7400V

2N2

C14400V

2N2

P5:A

4425

M

15A500K

OD DRV

R131/4W

220K

R18

1/4W 1M

R20

1/4W 100K

W33BLK

INGND

.

R5

1/4W 113K

K2:A

3696

K1:A

R78

1/4W 100K

6BQ5V4:A

6BQ5V5:A

P2:A

4425

M

15A500K

BASS

P3:A

4423

M

15A20K

MID

P6:A

4425

M

15A500K

CLN VOL

R22

1/4W 1K54

R23

1/4W 113K

R25

1/4W 220K

M

1B

P8:A

4424

100K

REVERB

U2:B

TL072CP

R64

1/4W 18K

6541J7

REV DRV

R31

1.0W 1K

Mini

S2:B3522

CH SELR41

1/4W 4K7

MINI1/4W 100R

R19

SRT J5

Gold Gold .

AMP IN

3696_DRW

SRT J3

Gold Gold .

FT SW

SRT J4

- - -

PRE OUT

NODE VOLTAGE TEST CONDITIONSLINE VOLTAGE: 120VacOUTPUT LOAD: 8 OHMSNO INPUT SIGNAL APPLIED

U2:A

TL072CP

1

2

3

5

4T2

BLU

BLK

GRN

BRN

RED

3700_DRW

11 11

10 10

9 9

8 8

7 7

6 6

5 5

4 4

3 3

2 2

1 1

A

A

B

B

C

C

D

D

E

E

F

F

G

G

H

H

I

I

J

J

K

K

L

L

M

M

N

N

O

O

P

P

Q

Q

of

Filename:

PCB# Sheet 32

Product

Date: 7V00M647-7V00sch.sch2002

M647PowerSupplyMon Sep 11, 2006 Rev:

YCV20of

Filename:

PCB# Sheet 32

Product

Date: 7V00M647-7V00sch.sch2002

M647PowerSupplyMon Sep 11, 2006 Rev:

YCV20

S5

+15V

GND

GND

GND

T1

1330

PLATE SCRN

HI1

W25:GW25:H

GNDW25:EW25:D

GNDW25:AW25:B

W26:GW26:H

W26:DW26:E

W26:BW26:A

T400mAL

F1FUSE

NET00093 W39:HW39:G

NET00080

NET00099 W39:DW39:E

NET00082W39:AW39:B

BLK

8

PR2

GRN

3GRY

4YEL

5

GRY

RED

7

HTR2

4007

D94007

D8

3.2Vac

-15Vdc

+15V

NET00048

NET00065

NET00077

R711.0WFLMP

220R

R701/4WFLMP10R

R721.0W

10K0

R941/4W

10K

GND

GND

+15V

-15V

W25:F

W25:C

W25:I

IEC

_REC

T

IEC

_REC

T

W26:F

W26:C

W26:I

CE AC

SCH_SPDT

S5

NET00087

NET00098

NET00103

W39:I

W39:C

W39:F

9

1330E

BLK

3682W11120V

PR1

3682W13BLK120V

1GRN

2

6

RED

3682W9GRNFIL

3682W8GRNFIL

LV1

4007

D14

LV2

HI2

3682W6GRYLO V

4007

D11

4007

D12

C36350V

22U4007

D7

3.2VacV4:B

C4925V

470UC48

25V

470U

C38350V

22U

V5:B

-15V

R871/2W

18R

GND

GND

+15Vdc

C5250V

100N

R861/2W

18R

D S

G

IRF830

Q116730TO220.

R67

1/4W 680K

R68

1/4W 470R

C62100V 47N

272Vdc

+150V

C56250V

4N7

W23GRN

CHGND

.

S4:A3522

STANDBY

C55275V

22N 3682W7GRYLO V

4007

D13

4007

D10 C40250V220N

C5025V

470UC51

25V

470U

R92

1/8W 100R0

FLMP

C5350V

100N

R11/2W

18R

C41350V

22UC43

350V

22U

NET00066

NET00092

W38:HW38:G

NET00095

W38:EW38:D

+150V_RAW W38:AW38:B

SCH_DPDT

3682W19YELC.T.

154VdcR901.0W

10K0

R691/4WFLMP10R

C60160V 10U

W38:I

W38:C

W38:F

Ribbon cables

3682W10WHTLINE

T1AL

FUSEF1

For Euro - T400mAL

3682W12LINE

LD5OPERATE

RED6398

3682W5REDHI V

3682W4REDHI V

R91

1.0W 470R

LD4STBY

YEL6399

C37350V

22U

OUTIN

GND

MC7915CT

6871

Function

U3

TO220

V3:C

V1:C

OUTIN

GND

6872

U4MC7815CT

Function

TO220

212Vdc

283Vdc +150V_RAW

D161N5240BRL 10V00W5

D191N5262B

0W551V0

D181N5262B

0W551V0

4007D15

STANDBYS4:B3522

C42350V

22U

D171N5262B

0W551V0

R93

1/8W 100R0FLMP

V2:C8

3

4

56

7

92

1

T1

GRN

GRN

YEL

GRY

RED

GRY

RED

BLK

BLK

.

910111213

MODEL(S):-DATE VER# DESCRIPTION OF CHANGE#

12345678

TO 100K (4838) [GT](4866), R54&R53 TO 4K7 (4827), C35 TO 150N (5229), R88PC#6716 CHANGE R66&R63 TO 220K (4841), R58 TO 4R7Shifted footswitch jack by 200mil

.

.5.105.005.00

06-OCT-2004

.

.

5-JAN-200416-DEC-2003

Added headphones, DI out, ext. spkr jack and spkr defeatFix shorts in Ver 3.00D2PC#6597 R31 2k2 1/2W to 1K 1W. Add C64,C65,R95,R96,Updated targetsFixed hole size on tube socket - added clinch holeForce updated r70,r72 to fix hole size.

5.004.00.V3.00.V2.00V1.03 V1.00

May, 12, 2003.Apr 07, 2003.21 Feb, 200319 Feb, 2003

YCV20 M647

FIRST PRODUCTION FEB, 2003

16-DEC-2003Connected jacks -ve to speaker -ve, reduced headphone gain

12

9

6

3

13

1011

7

4

12

5

8

V

V

V

.

V

VV

V

V

6.00

V

V

7.00

D

D

D

.

N

N

N

HOLES FOR #3522 DPDT SWITCH, UPDATED RELAYS

D

DD

D

D

12-OCT-2005

D

23-MAY-2006

D

N

NN

N

N

AH, PC#6937, CHANGE TUBE SOCKET DRILLING

N

N

PC#7125:GT:#3914 RCA JACK ->#6541, PC#7091: ENLARGE

KNOBPART#FUNCTIONREFMODEL(S):-

{NEW}YCV20

M647 POT LIST

MAR 2003" "" "" "" "" "" "" "NNNN

#8430#8430#8430#8430#8430#8430#8430#8430KKKK

#4424#4425#4423#4425#4425#4425#4425#4424PPPP

TREBLEBASSMIDGAIN 2 (CLN)GAIN 1 (OD DRV)VOL 2 (CLN)VOL (OD)REVERBFFFF

P1P2P3P4P5P6P7P8RRRR

12

9

6

3

13

1011

7

4

12

5

8

V

V

V

V

V

VV

V

V

V

V

V

V

D

D

D

D

N

N

N

N

D

DD

D

D

D

D

D

D

N

NN

N

N

N

N

N

N

SHEAR SHEAR

VCDCLINCH

ORIGIN LONG AXIS

SHO

RT

AXIS

INSERT

ORIGIN

7V00Pcb MechM647

CLICKIN

OUT

7V00Top Assy7V00

M647Top Assy M647

SEE PRODUCTION NOTE #1

SEE PRODUCTION NOTE #2

SEE LAYOUT DOCUMENTATION

VTR

VTR

C2

NC

C1

NO

NOL

NCL

NOR

NCR

CL CR

NC

NO

C

+

-

GUIDEETCH

+

-

NOL

NCL

NOR

NCR

CL CR

+

-

+

-

GUIDEETCH

+

-

NOL

NCL

NOR

NCR

CL CR

C2

NC

C1

NO

G1

G3

G2

SIG

RC

A

GU

IDE

ETC

H

NOL

NCL

NOR

NCR

CL CR

7

21

G1

G3

G2

SIG

RC

ARING

TIP-SW

TIPSLE

EVE

RIN

G-S

W

7 7

7

7

CH SEL

CLN VOL

OP

ER

ATE

OD DRV

BOOST

BOOST

ODCLN

MID

STB

Y

STANDBY

RE

V R

TN

REVERBOD VOL

.

CLN DRV TREBLE

BRIGHT

INT. SPKR. DEFEAT

HE

AD

PH

ON

ES

D.I. OUT

BASS

RE

V D

RV

PRE OUT AMP IN

EX

TER

NA

L S

PK

R

FT SW

5834

4425

6398

4425

5906

5907

5882

6871

5908

6435

4423

6399

3674

3674

3674

3983 3983

6872

3674

5865

6451

6541

44244425

6730

4425 4424

3436

3923

4425

65413732

3921

3732

3983

4148

1K54

113K

4N7

2N2

100K

220K

4148

1N 1K54

820R

10V

0

100K

470P

51V

0

100P

18K

4K7

10N

47K

620R

47N

1M

113K

10K

2N2

22N

400V

1M

220K

220K

1M41

48

113K

10R

100N

4K7

33K

100N

47R

10K

10K

0

10K

470K

100N

220K22U50V

10N

1K54

22U

350V

100K

820R

330N

160V

10U

1M

RELAY 1C

82K

220K

100K

6N822

0K

470R

RELAY 2C

22U350V

3N3

220K

330N

470P

4148

100R

50V

22U

10R

51V0

18R1/2W

33N

220P22N

500K

15A

22U

50V

25V

470U

113K

220P

220P

25V

470U

25V

470U

22U350V

22U350V

TL07

2CP

2K2

100K

100N

100N

100R0

MP

SA

06

10K

4R7

MPSA56

47K

22U50V

RED

100N

100N

500K

15A

2K21

10K

MPSA06

18R

1/2W

RED YEL 50V22U

1.0W

220R

470K

2N2

MP

SA

06

100N

1M

BC

560C

1M100K470K

250V220N

MC7915CT

TO220

GRN

47R

22U350V

100N

1N

100N

47N

470R47

R

10K

22U50V

275V

22N

20K

15A

22U50V

1.0W

470R

YEL

10K

220K

100N

4K7

1K1/2W

10K

4N7100N

4007

1M

100K

10K

4K7

562R1/2W680R

4007

4007

100R0

4148

470P

470R

1.0W10K0

1.0W220R

22U

350V

6BQ5

2N2

75R

220R

1/2W2K2

470R

51V0 25V

470U

100N

22N400V

680K

6BQ5

MC7815CT

TO220

1K54

22U50V

150N47K

220K

100K

100N

TL07

2CP

4K710K

1.0W1K

RELAY 1C

47R100R

562R4007

4007

4007

5.0W

100R

10K0 680R1/2W

250V

4N7

4007

4007

4148

10K

100K

1B

5.0W

100R

1.0W220R

BC

560C

500K

15A

IRF830

500K

15A

100K

1B

6K81K

1/2W

620R

22U50V

4007

500K

15A

12AX7

12AX7

1.0W10K0

18R1/2W

BU

TTO

N

12AX7

2/5

3/5

7V00

1/5M647

M647

7V00

M647 5/5

M6477V00

M647

4/5

M647

7V00

Shear after auto-insert - 10"

.

IN

W31

YEL

D4

R17

R16

C5

X3

C8

R20

R10

D3

X5

X51

C12

R22

R76

D16

R48

C58

D17

C34

X57

R64

R62

X41

X22

X42

C32

X45

X34

R33

X27

X27

X60

X60

R50

XC51

X28

X28

C62

R3

R5

X19

R45

C14

X24

X21

C45

X2

R82

R13

R14

R81

D2

X15

X7

X12

R23

X20

X31

R69

C21

X13

X33

X18 R

54

X54

X58

X50

X49

X52

R8

C15

R55

R51

R10

1

X47X53

XC96

R60

R75

X17

X8

X40

C54

R66

SPKR+

GRN

W17

W30

.

JACKS+

BLU

HI V

RED

W3

PLATE

BRN

W2

.

INW32

YEL

C1

C2 R

4

TJH3

.INGND

W33

BLK

C42 R78

R77

C6

C60

R15

X16

X11K2

R79

X39

X10

R11

R9

X9

C4

R89

WHT

S2

R95

K1

C43

C10

R25

C13

C18

D1

R19

C63

R70

D19

R87

C39

C23

C24

P6

C64

C51

X59

R7

C30

C29

X38

C48C49

C36

C37

U2R65

R61

C31

X36

C57

GRY

W7

LO V

R93

RED

W4

HI V

W5HI V

RED

Q9

R59

R58

Q10

W12

LINE

X43

R32

W15

BLKJACKS-

W15.

W20

SPKR-

BLK

C26

LD5

XC

93

.

JACKS-W29

BLK

PLATEBLU

W1

SPKR-

BLK

W18

C20 C22

P5

R12

R44Q7

R86

X1

LD3

WHT

S3

X32

LD2

C65

X29

X37

R84

R74

C11

Q6

C19

R21

Q5

R2

R27

R30

C40 U3

X14 LD1

R29

C38

C52

C17

X48

X55

X35

C33

GRY

W6

LO V

FIL GRN

W9

C16

R57R

56

R52

C27

C55

P3

C25 TJH5

SPKR+

W16BLU

R91

LD4

WHT

S4

R94

R63

C61

R43

R47

W37

R83

X30X26

C46

C53

D15

X44X56

R18

R88

X6

R39

R41

R103R103 R98

D8

D9

R92 W27

D5

C59

W28

R80

X46

R90R71

C41

V5

.

CHGND

W22

GRN

.

INGND

W34

BLK

C7

R46

R42

R96

.

CHGND

W23GRNR68

D18

C50W263610

C47

C44

X25

R67

V4

U4

W36

3610W25

R6

C9

C35R26

R24

R28

C3

U1

R53

R38R31

K3

R36R37

TJH1 BLK

W13120V

C.T.YEL W19

R102R102

D14

D11

D13

3610W38

120V

W11 R99

R100 R97

WHT

W10LINE

C56

D10

D7

J6

D6

3610W39

R34

P8

TJH2 R73

R85

Q8

P7

Q11

P4 P1

R40

R35

WHT

S1

R49

S6

FIL

GRN

W8 C28

D12

-

-

-J2

J9

TJH4

YCV20

P2

.

CH

GN

DW24

GR

N

J7

W14

BLUJACKS+

W14

V1

J1

V2-

-

-J4

Gold

Gold

GoldJ5

R72

R1

V3 Gold

#3450

J8

Gold

Gold

GoldJ3

2.

1.

TL072C

HOLE

RIBBON CABLE

LEAD/PIN REFERENCE

LEAD BENT AND TRIMMED

LEADS FOR W25 RIBBON CABLE MUST BE BENT AWAYFROM PCB HOLE AND TRIMMED

SEE LAYOUT DIAGRAM PRODUCTION NOTESMOUNTING DETAILS FOR Q11, U3 AND U4

#8837

#3850

#8800Z437

#3796

Devices

C2

NC

C1

NO

3696_DRWG SDTO-220

IRF830

E CBTO-92

MPSA06MPSA56

C EBTO-92

BC550C

G1

G3K

1 9

NC

P4

H6

EL84

2

3

H

8

7

NC

5

G2

NC

"STYLE_P32"

NO1

NC1

NO2

NC2

COM1 COM2

3700_DRW

2G

2K

1 9

1K

1G4

H6

2

3

H

8

7

2P

5

HT

1P

12AX7A

11

8

5

2

12

9

6

13

10

7

34

1

D

D

D

V

V

V

N

N

N

D

D

D

D

D

D

D

V

V

V

V

V

V

V

N

N

N

N

N

N

N

12-OCT-2005 6.00 AH, PC#6937, CHANGE TUBE SOCKET DRILLING23-MAY-2006 7.00 PC#7125:GT:#3914 RCA JACK ->#6541, PC#7091: ENLARGE

.. HOLES FOR #3522 DPDT SWITCH, UPDATED RELAYS

KNOBPART#FUNCTIONREFMODEL(S):-

{NEW}YCV20

M647 POT LIST

MAR 2003" "" "" "" "" "" "" "NNNN

#8430#8430#8430#8430#8430#8430#8430#8430KKKK

#4424#4425#4423#4425#4425#4425#4425#4424PPPP

TREBLEBASSMIDGAIN 2 (CLN)GAIN 1 (OD DRV)VOL 2 (CLN)VOL (OD)REVERBFFFF

P1P2P3P4P5P6P7P8RRRR

4

1

65

3

#

2

MODEL(S):-PC#

*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY

PENDING CHANGE

X

X

XX

XX

PC

PC

PCPC

PCPC

M647 PENDING CHANGESYCV20

5

2

#

6

34

1DATE

MODEL(S):-VER# DESCRIPTION OF CHANGE

D

D

V

V

N

N

D

DD

V

VV

N

NN

M647 DRILL HISTORYYCV20

V07 PC#7125 AND #7091, SEE HISTORY TABLEMAY-23-2006

11

8

5

2

12

9

6

13

10

7

34

1

D

D

D

D

V

V

V

V

N

N

N

N

D

D

D

D

D

D

DD

D

V

V

V

V

V

V

VV

V

N

N

N

N

N

N

NN

N

131211109

DESCRIPTION OF CHANGE

54321# VER#DATEMODEL(S):-

876

May, 12, 2003. .

4.00

V3.00Apr 07, 2003 PC#6597 R31 2k2 1/2W to 1K 1W. Add C64,C65,R95,R96,D2Fix shorts in Ver 3.00

FEB, 200319 Feb, 2003

V1.00 V1.03

FIRST PRODUCTION Force updated r70,r72 to fix hole size.

YCV20 M647

21 Feb, 2003 V2.00 Fixed hole size on tube socket - added clinch holeUpdated targets..

16-DEC-2003 5.00 Added headphones, DI out, ext. spkr jack and spkr defeat16-DEC-2003 Connected jacks -ve to speaker -ve, reduced headphone gain5-JAN-2004 Shifted footswitch jack by 200mil

5.005.00

06-OCT-2004 5.10 PC#6716 CHANGE R66&R63 TO 220K (4841), R58 TO 4R7(4866), R54&R53 TO 4K7 (4827), C35 TO 150N (5229), R88TO 100K (4838) [GT]

.

...

M647YCV20

VER X.XX

*ALL BOARDS SHOWN FROM COMPONENT SIDE

12AX7PREAMP

V3

V4 V5

CLEAN INPUT

LEAD INPUT

CLEANOUTPUT

LEADOUTPUT

V1:A V1:B V2:A V2:B

6BQ5OUTPUT -VE

6BQ5OUTPUT +VE

12AX7PHASE- SPLITTER

12AX7PREAMP

PREAMP BOARD

YCV20 - JAN. 15, 2004THIS DIAGRAM APPLIES TO BOARDS THAT ARE VERSION 5.00 OR HIGHER

INPUT FX LOOP & FOOTSW. BOARD

SPKR./HEADPHONE BOARD

POWER SUPPLY& OUTPUT BOARD