YORKVILLE Custom Valve YCV80 User manual

U.S.A.
Yorkville Sound Inc.
4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA
Voice: [phone]
Fax: [phone]
WORLD HEADQUARTERS
WEB ACCESS: http://www.yorkville.com
CANADA
Yorkville Sound
550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA
Voice: [phone]
Fax: [phone]
Quality and Innovation Since 1963
Printed in Canada
SERVICE MANUAL
YCV80/YCV80Q
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INSTRUCTIONS PERTAINING TO A RISK
OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS.
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
Read Instructions:
The
Owner's Manual
should be read and understood
before operation of your unit. Please, save these
instructions for future reference.
Packaging:
Keep the box and packaging materials, in case the unit
needs to be returned for service.
Warning:
When using electric products, basic precautions should
always be followed, including the following:
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.
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.
Power Cord:
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.
Service:
The unit should be serviced only by qualified service personnel.
INSTRUCTIONS RELATIVES AU RISQUE
DE FEU, CHOC ÉLECTRIQUE, OU
BLESSURES AUX PERSONNES.
AVIS:
AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE,
N'ENLEVEZ PAS LE COUVERT (OU LE PANNEAU
ARRIERE). NE CONTIENT AUCUNE PIECE REPARABLE
PAR L'UTILISATEUR.
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
Emballage:
Conservez la boite au cas ou l'appareil devait être
retourner pour réparation.
Warning:
Attention: Lors de l'utilisation de produits électrique,
assurez-vous d'adhérer à des précautions de bases
incluant celle qui suivent:
Alimentation:
L'appareil ne doit être branché qu'à une source d'alimentation
correspondant au voltage spécifié dans le manuel ou tel qu'indiqué
sur l'appareil. Cet appareil est équipé d'une prise d'alimentation
polarisée. Ne pas utiliser cet appareil avec un cordon de
raccordement à moins qu'il soit possible d'insérer complètement les
trois lames. Des précautions doivent êtres prises afin d'eviter que le
système de mise à la terre de l'appareil ne soit désengagé.
Hazard:
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.
Cordon d'alimentation:
Évitez d'endommager le cordon d'alimentation. N'UTILISEZ PAS
L'APPAREIL si le cordon d'alimentation est endommagé.
Service:
Consultez un technicien qualifié pour l'entretien de votre appareil.
IMPORTANT SAFETY INSTRUCTIONS
SAFE_V4.doc Version 4.0 02/11/99 11:54 AM

# Part# Description
Labeled Components
1 8260 TRAYNOR LOGO
2 7080 12" 8R 80WPGM SPEAKER CELESTION
3 8461 TRIM CLIP (PLATED BLK ZINC)
4Z435 YCV80 GRILLE* ‡ current model only!
5TFS-2B TRAYNOR DUAL FOOTSWCH 10' CORD
6 8522 72" RCA PREFAB CABLE STEREO
73537 ACC# 4EB3C1B LONG REVERB
88504 CORNER, 2 LEGS NOTCED LIP NICKEL PLATED
98522 RUBBER BUMPER WITH WASHER -SMALL-
10 8770 1/4-20 X 1 5/16 TRUSS PH MS JS5
11 8456 10.0" STRAP HANDLE, NICKEL COVERS
12 6397 JEWELED PILOT LAMP AMBER REG
13 8430 CHICKEN-BEAK KNOB
14 8633 ROUND PUSH BUTTON 1/4" BLACK
15 3921 1/4" JCK PCB MT VERT STER RT SWT
16 3663 SNAP IEC PWR SOC W/.250TAB FOR .060
17 3698 SPST ROKR SW QUIK 180" AC PWR
18 3450 & 3450NUT 1/4" ALL GOLD PC MNT JK SKT
19 3482 LOWPROFILE FUSEHOLDER 1/4" BUSSMANN
20 8638 PUSH SW BUTTON GREY
21 3923 XLR MALE PCB MT HORZ MTHOLE-V SNAP
22 3552 NYLON SPRING CLAMP
23 7025A OR 7025B 12AX7 DUAL TRIODE PREAMP TUBE
24 6L6B 6L6GB OUTPUT POWER TUBE
25 3428 8' 3/18 SJT AC LINE CORD REMOVABLE
*NOTE: Replacement grilles are 'Special-Order' and are only available while the model is in production.
‡ Grilles & Support replacements are for CURRENT models only.
8
9
4
3
1
2
16
19
5
15
12 13
18
17
REVERB CABLE AND UNIT
6/7
TUBES
23/24
10
20 21
11
14
6/7
AC Cord
25
Parts-Serv-YCV80-1v0.xls ftp.yorkville.com Speaker Enclosure

YCV80Q-1.xls Parts List 10/8/2002
YS # Description Qty. YS # Description Qty. YS # Description Qty.
6397 JEWELED PILOT LAMP AMBER REG V1 1 8430 YCV40 CHICKEN-BEAK KNO
B
11 1327 YCV80 POWER XFMR 1
5906 RED 3MM LED 1V9 20MA .4SPCER T&
R
1 8633 ROUND PUSH BUTTON 1/4" BLACK 6 1327M YCV80 OUTPUT XFMR 1
6398 RED 5MM LED 1V5 20MA HIGH EFF 1 3426 8' 3/16 SJT AC LINE CORD REMOVB CS
A
1
6399 YEL 5MM LED 1V5 20MA HIGH EFF 1 8260 YCV40 LOGO EMBOSSED ALUMINUM 1
5907 YEL 3MM LED 1V9 20MA .4SPCER T&
R
1 3638 12 CIR CABLE HOLDER .098 2
5908 GRN 3MM LED 1V9 20MA .4SPCER T&
R
1 3674 9 CIR CABLE HOLDER .098 2
6825 1N4148 75V 0A45 DIODE T&R 7 8800 6-32 KEPS NUT ZINC 5
6830 1N5408 1000V 3A0 DIODE 4 8890 1/4-20 CAGE NUT C7988142027 4
6438 1N4004 400V 1A0 DIODE T&R 6 3796 ELASTOMER PAD TSIL 1.0X0.8 3
6461 1N5240BRL 10V0 0W5 ZENER 5% T&R 1 3850 TO-220 PLASTIC TRANSISTOR INSULATOR 3
6475 1N5262B 51V0 0W5 ZENER 5% T&R 7 4597 22AWG STRAN TC WIR JMP 5
6871 MC7915CT TO220 N 15V0 REG V2 1 4599 22AWG SOLID SC WIR T&R JMP 70
6872 MC7815CT TO220 P 15V0 REG V1 1 2005 1.0W 0R47 5%FLAME PROOF T&R RES 1
5101 BC550C TO92 NPN TRAN T&R TB 4 2008 1.0W 10R 5%FLAME PROOF T&R RES 4
5102 BC560C TO92 PNP TRAN T&R TB 2 4612 1/2W 18R 5% T&R RES 3
5103 MPSA06 TO92 NPN TRAN T&R TA 4 4816 1/4W 33R 5% T&R RES 1
5104 MPSA56 TO92 PNP TRAN T&R TA 3 4817 1/4W 47R 5% T&R RES 4
6873 MJE340 TO126 NPN TRAN TG 1 2019 1/8W 100R0 1%FLAME PROOF T&R RES 2
6730 IRF830 TO220 NCH MFET TN 1 4852 1/4W 100R 5% T&R RES 1
6882 TL072CP IC FET DUAL OP AMP 5 2022 1.0W 220R 5%FLAME PROOF T&R RES 4
6880 4N35 OPTO-COUPLER 1 2023 1/8W 220R0 1%FLAME PROOF T&R RES 2
5408 _47P 100V 10%CAP T&R BEAD NPO 1 4857 1/4W 220R 5% T&R RES 3
5197 220P 100V 2%CAP T&R RAD CER.2"NPO 7 4736 5.0W 390R 5% BLK RES 1
5417 330P 50V 10%CAP T&R BEAD NPO 1 4621 1/2W 470R 5% T&R RES 1
5201 470P 100V 5%CAP T&R RAD CER.2"NPO 3 4821 1/4W 470R 5% T&R RES 3
5416 470P 50V 10%CAP T&R BEAD NPO 1 5019 1/4W 620R 5%MINI T&R RES 4
5206 __1N 400V 5%CAP T&R RAD .2"FLM 6 4822 1/4W 820R 5% T&R RES 4
5208 __2N2 400V 5%CAP T&R RAD .2"FLM 3 4823 1/4W 1K 5% T&R RES 3
5275 __3N3 100V 5%CAP T&R RAD .2"FLM 1 4824 1/4W 1K5 5% T&R RES 3
5209 __4N7 250V 5%CAP T&R RAD .2"FLM 2 4791 1/4W 1K54 1% T&T RES 1
6451 __4N7 250V 20%CAP BLK 'Y' 10MM AC 1 4631 1/2W 2K 5% T&R RES 1
5272 __6N8 100V 5%CAP T&R RAD .2"FLM 3 4705 2.0W 2K2 5% BLK RES 1
5204 _10N 100V 10%CAP T&R RAD .2"FLM 3 6104 1/4W 2K2 5%MINI T&R RES 3
5834 _10N 250V 20%CAP BLK RAD POLY FLM 1 4714 1/4W 2K21 1% T&R RES 1
5210 _22N 100V 10%CAP T&R RAD .2"FLM 1 4827 1/4W 4K7 5% T&R RES 12
5840 _22N 400V 10%CAP BLK RAD POLY FLM 1 4663 1/2W 8K2 5% T&R RES 1
6435 _22N 275V 20%CAP BLK 'X2' 15MM AC 1 4863 1/4W 8K2 5% T&R RES 1
5224 _47N 100V 10%CAP T&R RAD .2"FLM 5 4829 1/4W 10K 5% T&R RES 20
5841 _47N 250V 10%CAP RAD POLYFILM BULK 2 4856 1/4W 12K 5% T&R RES 1
5227 _82N 100V 5%CAP T&R RAD .2"FLM 1 4830 1/4W 15K 5% T&R RES 1
5228 100N 100V 5%CAP T&R RAD .2"FLM 7 4831 1/4W 18K 5% T&R RES 2
5865 100N 250V 10%CAP BLK RAD POLY FLM 1 4832 1/4W 22K 5% T&R RES 1
5229 150N 63V 10%CAP T&R RAD .2"FLM 2 4902 1/4W 24K 5% T&R RES 4
5231 220N 63V 10%CAP T&R RAD .2"FLM 2 4833 1/4W 27K 5% T&R RES 4
5882 220N 250V 10%CAP BLK RAD POLY FLM 3 4840 1/4W 33K 5% T&R RES 1
5233 330N 63V 5%CAP T&R RAD .2"FLM 5 4868 1/4W 36K 5% T&R RES 3
5234 470N 63V 10%CAP T&R RAD .2"FLM 1 4853 1/4W 39K 5% T&R RES 1
5256 __1U 63V 5%CAP T&R RAD .2"FLM 1 4834 1/4W 47K 5% T&R RES 10
5945 _10U 63V 20%CAP T&R RAD .2"EL 1 4848 1/4W 62K 5% T&R RES 1
5959 _10U 450V 20%CAP BLK EL 4 4586 1/4W 82K 5%MINI T&R RES 2
5631 _22U 50V 20%CAP T&R 6X7MM .2"EL 5 4898 1/4W 91K 5% T&R RES 1
5961 _33U 16V 20%CAP T&R RAD .2"NP 6 6120 1/4W 100K 5%MINI T&R RES 14
5902 82U 450V 20%CAP BLK 22X30MM 2 4776 1/4W 113K 1% T&R RES 3
5267 100U 25V 20%CAP T&R RAD .2"EL 3 4849 1/4W 180K 5% T&R RES 1
5914 100U 63V 20%CAP BLK 10X13MM EL 1 4668 2.0W 220K 5%10MM BODY T&R RES 1
5618 470U 25V 20%CAP BLK 10X15MM EL 4 4841 1/4W 220K 5% T&R RES 6
5881 6L6 TETRODE OUTPUT TUBE 4 6145 1/4W 249K 1%MINI T&R RES 1
4497 _10K B LIN 9MM HORIZONTAL P29 2 4843 1/4W 470K 5% T&R RES 3
4423 _20K 15AAUDIO 9MM P32 4 4880 1/4W 680K 5% T&R RES 1
4424 100K 1B LIN 9MM P32 2 4844 1/4W 1M 5% T&R RES 8
4425 500K 15AAUDIO 9MM P32 5 4845 1/4W 2M2 5% T&R RES 3
8461 TRIM CLIP (PLATED BLK ZINC) 4 3610 10" 9C-26AWG RIB 3/4" NOTCH 0.1" 2.3
8504 CORNER, 2 LEGS NOTCED LIP NICKEL 8 3700 RELAY 2C 01AMP DC24 015MA PC-S 2
NYS224 280 PLUG NEUTRIK NYS224 1 3537
A
CC# 4EB3C1B LONG REVERB 1
3498 1/4" JCK PCB MT HORZ 6 3663 SNAP IEC PWR SOC W/.250TAB FOR .060 1
3528 1/4" JCK PCB MT HORZ GOLD TR_ 1 3741 .5 SPACER ID-.171 OD-.25 #912-500 4
3921 1/4" JCK PCB MT VERT STER RT SWT 1 3865 1/2 PLASTIC HEX SPACER #6 11
3902 72" RCA PREFAB CABLE STEREO 1 3858 3/4 PLASTIC HEX SPACER #4 15
3914 RCA SNGL PCB MT HORZ 2 TUBE10 10" 8R 30WPGM SPEAKER CELESTION 4
3923 XLR MALE PCB MT HORZ MTHOLE-V SNA
P
1 8488 3/8 INT TOOTH LOCKWASHE ZINC 1
3451 EYELET SMALL 0.089 OD PLATED 56 3511 #6 FLAT WASHER NYLON 12
3482 LOWPROFILE FUSEHOLDER 1/4" BUSSMANN 1 8820 #8 FLAT WASHER JS500 4
2453 3.0 AMP SLO-BLO .25X1.25 FUSE 1 8817 #10 FLAT WASHER FOR 3/16" BOLT 12
8456 10.0" STRAP HANDLE, NICKEL COVERS 1 3436 DPDT PUSH SW PCMT H BREAK B4 MAKE 1
8604 10-32 T NUT 6 3522 DPDT PUSH SW PCMT V MINI SNAP- 5
3975 SNAP ON 0.718" INSULATING BUSHING 3 3698 SPST ROKR SW QUIK 180" AC PWR BL/BL 1
3976 SNAP ON 0.843" INSULATING BUSHING 2 3731 SPRING RETAINER FOR OUTPUT TUBE 4
8889 RUBBER GROMMET #2183-034-BLK 4 3732 9 PIN PC MOUNT TUBE SOCKET BE 3
3552 NYLON SPRING CLAMP 5 3733 8 PIN PC MOUNT TUBE SOCKE
T
4
3810 4" NYLON CABLE TIE 8 12AX7BLK 12AX7 DUAL TRIODE PREAMP TUBE 3
YCV80-1.xls Parts List 10/8/2002
YS # Description Qty. YS # Description Qty. YS # Description Qty.
6397 JEWELED PILOT LAMP AMBER REG V1 1 3923 XLR MALE PCB MT HORZ MTHOLE-V SNA
P
1 3436 DPDT PUSH SW PCMT H BREAK B4 MAKE 1
5906 RED 3MM LED 1V9 20MA .4SPCER T&
R
1 3451 EYELET SMALL 0.089 OD PLATED 56 3522 DPDT PUSH SW PCMT V MINI SNAP- 6
6398 RED 5MM LED 1V5 20MA HIGH EFF 1 3482 LOWPROFILE FUSEHOLDER 1/4" BUSSMANN 1 3698 SPST ROKR SW QUIK 180" AC PWR BL/BL 1
6399 YEL 5MM LED 1V5 20MA HIGH EFF 1 2453 3.0 AMP SLO-BLO .25X1.25 FUSE 1 3731 SPRING RETAINER FOR OUTPUT TUBE 4
5907 YEL 3MM LED 1V9 20MA .4SPCER T&
R
1 8456 10.0" STRAP HANDLE, NICKEL COVERS 1 3732 9 PIN PC MOUNT TUBE SOCKET BE 3
5908 GRN 3MM LED 1V9 20MA .4SPCER T&
R
1 8604 10-32 T NUT 10 3733 8 PIN PC MOUNT TUBE SOCKE
T
4
6825 1N4148 75V 0A45 DIODE T&R 7 3975 SNAP ON 0.718" INSULATING BUSHING 3
A
X7BLK 12AX7 DUAL TRIODE PREAMP TUBE 3
6830 1N5408 1000V 3A0 DIODE 4 3976 SNAP ON 0.843" INSULATING BUSHING 2 1327 YCV80 POWER XFMR 1
6438 1N4004 400V 1A0 DIODE T&R 6 8889 RUBBER GROMMET #2183-034-BLK 4 1327M YCV80 OUTPUT XFMR 1
6461 1N5240BRL 10V0 0W5 ZENER 5% T&R 1 3552 NYLON SPRING CLAMP 4
6475 1N5262B 51V0 0W5 ZENER 5% T&R 7 8430 YCV40 CHICKEN-BEAK KNO
B
11
6871 MC7915CT TO220 N 15V0 REG V2 1 8633 ROUND PUSH BUTTON 1/4" BLACK 6
6872 MC7815CT TO220 P 15V0 REG V1 1 8661 BUTTON KNOB FLAT GREY 1
5101 BC550C TO92 NPN TRAN T&R TB 4 3426 8' 3/16 SJT AC LINE CORD REMOVB CS
A
1
5102 BC560C TO92 PNP TRAN T&R TB 2 8260 YCV40 LOGO EMBOSSED ALUMINUM 1
5103 MPSA06 TO92 NPN TRAN T&R TA 4 3638 12 CIR CABLE HOLDER .098 2
5104 MPSA56 TO92 PNP TRAN T&R TA 3 3674 9 CIR CABLE HOLDER .098 2
6873 MJE340 TO126 NPN TRAN TG 1 8800 6-32 KEPS NUT ZINC 9
6730 IRF830 TO220 NCH MFET TN 1 8890 1/4-20 CAGE NUT C7988142027 4
6882 TL072CP IC FET DUAL OP AMP 6 3796 ELASTOMER PAD TSIL 1.0X0.8 3
6880 4N35 OPTO-COUPLER 1 3850 TO-220 PLASTIC TRANSISTOR INSULATOR 3
5408 _47P 100V 10%CAP T&R BEAD NPO 1 2005 1.0W 0R47 5%FLAME PROOF T&R RES 1
5197 220P 100V 2%CAP T&R RAD CER.2"NPO 8 2008 1.0W 10R 5%FLAME PROOF T&R RES 4
5417 330P 50V 10%CAP T&R BEAD NPO 1 4612 1/2W 18R 5% T&R RES 3
5201 470P 100V 5%CAP T&R RAD CER.2"NPO 3 4816 1/4W 33R 5% T&R RES 1
5416 470P 50V 10%CAP T&R BEAD NPO 1 4817 1/4W 47R 5% T&R RES 4
5418 470P 250V 20% Y2 CAP DISC T&R 1 2019 1/8W 100R0 1%FLAME PROOF T&R RES 2
5816 680P 100V 5%CAP T&R RAD CER.2"NPO 1 4852 1/4W 100R 5% T&R RES 1
5206 __1N 400V 5%CAP T&R RAD .2"FLM 6 2022 1.0W 220R 5%FLAME PROOF T&R RES 4
5208 __2N2 400V 5%CAP T&R RAD .2"FLM 1 2023 1/8W 220R0 1%FLAME PROOF T&R RES 2
5275 __3N3 100V 5%CAP T&R RAD .2"FLM 3 4857 1/4W 220R 5% T&R RES 3
5209 __4N7 250V 5%CAP T&R RAD .2"FLM 1 4736 5.0W 390R 5% BLK RES 1
6451 __4N7 250V 20%CAP BLK 'Y' 10MM AC 1 4621 1/2W 470R 5% T&R RES 1
5272 __6N8 100V 5%CAP T&R RAD .2"FLM 1 4821 1/4W 470R 5% T&R RES 3
5204 _10N 100V 10%CAP T&R RAD .2"FLM 3 5019 1/4W 620R 5%MINI T&R RES 4
5834 _10N 250V 20%CAP BLK RAD POLY FLM 1 4822 1/4W 820R 5% T&R RES 4
5210 _22N 100V 10%CAP T&R RAD .2"FLM 1 4823 1/4W 1K 5% T&R RES 3
5840 _22N 400V 10%CAP BLK RAD POLY FLM 2 4824 1/4W 1K5 5% T&R RES 3
6435 _22N 275V 20%CAP BLK 'X2' 15MM AC 1 4791 1/4W 1K54 1% T&T RES 1
5224 _47N 100V 10%CAP T&R RAD .2"FLM 5 4631 1/2W 2K 5% T&R RES 1
5841 _47N 250V 10%CAP RAD POLYFILM BULK 2 4705 2.0W 2K2 5% BLK RES 1
5226 _68N 100V 5%CAP T&R RAD .2"FLM 1 6104 1/4W 2K2 5%MINI T&R RES 3
5227 _82N 100V 5%CAP T&R RAD .2"FLM 1 4714 1/4W 2K21 1% T&R RES 1
5228 100N 100V 5%CAP T&R RAD .2"FLM 6 4827 1/4W 4K7 5% T&R RES 12
5865 100N 250V 10%CAP BLK RAD POLY FLM 1 4663 1/2W 8K2 5% T&R RES 1
5229 150N 63V 10%CAP T&R RAD .2"FLM 2 4863 1/4W 8K2 5% T&R RES 1
5231 220N 63V 10%CAP T&R RAD .2"FLM 2 4829 1/4W 10K 5% T&R RES 20
5882 220N 250V 10%CAP BLK RAD POLY FLM 2 4856 1/4W 12K 5% T&R RES 2
5233 330N 63V 5%CAP T&R RAD .2"FLM 5 4831 1/4W 18K 5% T&R RES 2
5234 470N 63V 10%CAP T&R RAD .2"FLM 1 4832 1/4W 22K 5% T&R RES 2
5256 __1U 63V 5%CAP T&R RAD .2"FLM 1 4902 1/4W 24K 5% T&R RES 4
5945 _10U 63V 20%CAP T&R RAD .2"EL 1 4833 1/4W 27K 5% T&R RES 3
5959 _10U 450V 20%CAP BLK EL 4 4840 1/4W 33K 5% T&R RES 2
5631 _22U 50V 20%CAP T&R 6X7MM .2"EL 5 4868 1/4W 36K 5% T&R RES 3
5961 _33U 16V 20%CAP T&R RAD .2"NP 6 4853 1/4W 39K 5% T&R RES 2
5902 82U 450V 20%CAP BLK 22X30MM 2 4834 1/4W 47K 5% T&R RES 8
5267 100U 25V 20%CAP T&R RAD .2"EL 3 4848 1/4W 62K 5% T&R RES 1
5914 100U 63V 20%CAP BLK 10X13MM EL 1 4836 1/4W 68K 5% T&R RES 1
5618 470U 25V 20%CAP BLK 10X15MM EL 4 4586 1/4W 82K 5%MINI T&R RES 2
5881 6L6 TETRODE OUTPUT TUBE 4 6120 1/4W 100K 5%MINI T&R RES 14
4497 _10K B LIN 9MM HORIZONTAL P29 2 4776 1/4W 113K 1% T&R RES 3
4423 _20K 15AAUDIO 9MM P32 4 4849 1/4W 180K 5% T&R RES 1
4424 100K 1B LIN 9MM P32 2 4668 2.0W 220K 5%10MM BODY T&R RES 1
4425 500K 15AAUDIO 9MM P32 5 4841 1/4W 220K 5% T&R RES 8
8461 TRIM CLIP (PLATED BLK ZINC) 4 6145 1/4W 249K 1%MINI T&R RES 1
8504 CORNER, 2 LEGS NOTCED LIP NICKEL 8 4843 1/4W 470K 5% T&R RES 1
8543 RECESSED RUBBER BUMPER WITH WASHER 4 4880 1/4W 680K 5% T&R RES 1
3478 CLIP 205/187X032 18-22AWG DISCO/INS 2 4844 1/4W 1M 5% T&R RES 8
3489 CLIP 250X032 18-22AWG DISCO/INSL 4 4845 1/4W 2M2 5% T&R RES 3
3490 CLIP 250X032 14-16AWG DISCO/INSL 1 3700 RELAY 2C 01AMP DC24 015MA PC-S 2
3491 CLIP 205/187X020 18-22AWG DISCO/INS 2 3537
A
CC# 4EB3C1B LONG REVERB 1
3494 CLIP 205/187X020 14-16AWG DISCO/INS 6 3663 SNAP IEC PWR SOC W/.250TAB FOR .060 1
3601 RING TERMINAL 16AWG WIRE & #8 SCREW 4 3741 .5 SPACER ID-.171 OD-.25 #912-500 4
3682 250 MALE PCB TAB REE
L
16 3865 1/2 PLASTIC HEX SPACER #6 12
NYS224 280 PLUG NEUTRIK NYS224 1 3858 3/4 PLASTIC HEX SPACER #4 15
3498 1/4" JCK PCB MT HORZ 5 7080 12" 8R 80WPGM SPEAKER CELESTION 2
3528 1/4" JCK PCB MT HORZ GOLD TR_ 2 8488 3/8 INT TOOTH LOCKWASHE ZINC 1
3921 1/4" JCK PCB MT VERT STER RT SWT 1 3511 #6 FLAT WASHER NYLON 12
3902 72" RCA PREFAB CABLE STEREO 1 8820 #8 FLAT WASHER JS500 4
3914 RCA SNGL PCB MT HORZ 2 8817 #10 FLAT WASHER FOR 3/16" BOLT 12

19 19
18 18
17 17
16 16
15 15
14 14
13 13
12 12
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
R
R
S
S
T
T
U
U
V
V
W
W
X
X
Y
Y
Product
Filename:
Date:
PCB# ofSheet
Rev:
21
2.70
M602
M602 SCH V2.60.SCH2001
YCV80
Tue Sep 03, 2002
Guitar Amp
+250V
+15V
-15V
+250V
+15V
GND
D16
4004
4004
D18
4004
D17
D15
4004
GND
GND
-15V
+15V
GND
-15V
+15V
R39
1/4W
47R
R38
1/4W
47R
R35
1/4W
4K7
GND
GND
GND
1/4W
10K
R160
GND
GND
-15V
GND
R48
1/4W
10K
R36
1/2W
2K
R69
1/4W
220K
R85
1/4W
27K
GND
NET00079
11
0W25:K
NET00124
9
0W25:I
NET00196NET00196
7
0W25:G
-15V
5
0W25:E
NET00089
3
0W25:C
NET00060
LINE
+250V
GND
GND
3682
W11GRN
FIL
+250V
+15V
GND
C65
250V100N
GND
NET00066
NET00165
NET00095
GND
-15V
NET00147
+15V
GND
+250VRAW
D7
1N5240BRL10V0
0W5
GND
C40
100V10N
GND
GND
NET00147
NET00170
GND
-ABIAS
A1SENS
A1SENS
GND
R43
1/4W
MINI
100K
C29
100V220P
-BBIAS
NET00094
NET00093
-15V
GND
GND
C49
100V470P
-15V
-15V
+15V
3682
W14
PLATE
BRN
+15V
GND
NET00026
NET00125
GND
8
0W25:H
12
0W25:L
10
0W25:J
GND
6
0W25:F
+15V
NET00065
4
0W25:D
1
0W25:A
{Function}
2
0W25:B
W41
#16
GRN
CHASSIS
C81
275V
22N
CORD
DPST CE ONLY
S9
W4
GND
#18
BLK
GND
W39
#16
GRN
GND
W40
#16
GRN
GND
3682
W22WHT
LINE IN
R2
1/4W
1M
R27
1/4W
220K
R3
1/4W
1K54
C7
63V
1U
C21
250V47N
+250V
3682
W10
FIL
GRN
1/4W
220K
R22
R25
1/4W
MINI
100K
1/4W
2M2
R113
C3
100V47N
C2
100V47N
R141
1/8W
FLMP
100R0
R140
1/8W
FLMP
100R0
Q2:B
2X_TRIODE_HCT
{Body}
Val
.
R10
1/4W
113K
C15
250V 470P
P4:A
4425
M
15A
500K
VOLUME
C9
100V3N3
R13
1/4W
22K
C78
25V
470U
OUTIN
U5
MC7915CT
6871 .
TO220
.
C76
25V
470U
OUTIN
U4
6872
MC7815CT
.
TO220
.
Q9:B
PENTODE
.
Q8:B
PENTODE
.
1/4W
62K
R152
R12
1/4W
39K
R19
1/4W
220K
R20
1/4W
220K
-15V
C79
100V
100N
R143
1/2W
18R
Q11:B
PENTODE
.
3682
W5RED
HI.V
3682
W6RED
HI.V
P7:A
4425
M
15A
500K
BASS
R16
1/4W
MINI
100K
R21
1/4W
1M
R4
1/4W
1K5
R142
1/2W
18R
1N5408
D13
1N5408
D14
D11
1N5408
D12
1N5408
GND
P9:A
4425
M
15A
500K
VOLUME
R26
1/4W
470K
C85
400V1N
1/4W
24K
R147
R146
1/4W
MINI
100K
R15
1/4W
MINI
100K
GND
R138
1/4W
36K
C62
450V
10U
R123
5.0W
390R
C70
450V
82U
2.0W
220K
R157
10MM
-15V
TO92
BC550C
Q23
5101
R28
1/4W
27K
U9:B
TL072CP
U9:A
TL072CP
8W30:H0
6W30:F0
4W30:D0
9W30:I0
7W30:G0
5W30:E0
1W30:A0
.
4004
D10
R137
1/4W
MINI
2K2
C66
450V
10U
C67
250V
220N
C68
250V
220N
R129
1/4W
470R
4004
D8
63V
C90
150N
C89
100V10N
1/4W
22K
R151
R29
1/4W
47K
R116
1/4W
18K
1N5262B
D9
0W5
51V0 R136
1/4W
1M
C64
450V
10U
1N5262B
51V0
D21
0W5
R159
1/8W
FLMP
220R0
6
5
4
6880
U6:B
4N35
R127
1/4W
2M2
Q22
5101
BC550C
TO92
R132
1/8W
220R0
FLMP
2.0W
2K2
R30
TO92
MPSA06
Q3
5103
R44
1/4W
2K2
MINI
C27
400V1N
R32
1/4W
10K
R45
1/4W
1K
1/4W
10K
R156
R78
1/4W
4K7
C41
100V82N
R76
1/4W
1M
R75
1/4W
1M
R77
1/4W
10K
C39
100V10N
+15V
R135
1/4W
1K
R42
1/4W
10K
R33
1/4W
10K
4148
D19
C26
100V100N
R34
1/4W
10K
LD4
GRN
CH2
C53
63V330N
LD3
RED
OPERATE
R134
1/2W
470R
GND
1/4W
220R
R37
R40
1/4W
100R
LD2
YEL
CH1
R81
1/4W
47K
R80
1/4W
47K
C44
63V
220N
R68
1/4W
820R
B1SENS
-ABIAS
-BBIAS
R98
1/4W
1K5
C51
63V330N
4148
D3
S5:B
3436
SPKR.DEFEAT
BOOST
S3:B
3522
DOWN UP
W24
Q13
5104
TO92
MPSA56
R60
1.0W
FLMP
220R
NET00096
R62
1.0W
10R
FLMP
R61
1.0W
10R
FLMP
B1SENS
R101
1/4W
4K7
R119
1/4W
24K
U1:A
TL072CP
W23
C30
63V
330N
+15V
C45
63V
220N
B2SENS
R67
1/4W
820R
R64
1.0W
10R
FLMP
R63
1.0W
10R
FLMP
GND
+15V
R102
1/4W
4K7
GND
P13:A
4423
M
15A
20K
REVERB
GND
GND
P11
4497
M
B LIN
10K
EFF.SEND
R59
1.0W
FLMP
220R
3682
W13
B+
RED
-15V
R117
1/4W
4K7
+15V
U7:A
TL072CP
R94
1/4W
180K
1/4W
100K
R155
MINI
R56
1/4W
10K
W33
#18
BLK
GND
W35
#18
BLK
GND
W34
#18
YEL
SPKR
W36
#18
YEL
SPKR
3682
W16GRN
SPKR
U3:A
TL072CP
R107
1/4W
10K
C57
100V220P
+15V
GND
R153
1/4W
220R
R154
1/4W
220R
1/4W
47R
R111
GND
R92
1/4W
18K
R96
1/4W
100K
MINI
C36
100V47N
R51
1/4W
1K
R57
1/4W
10K
W32
#18
BLK
GND
SRT J7
SPEAKER OUT
.
..
1/4W
4K7
R95
GND
GND
NAmer 3A
FUSE
F1
CE T2A
1/4W
2M2
R114
C13
400V
1N
W3
GND
#18
BLK
1/4W
2K2
R5
MINI 63V
C19
330N
1/4W
249K
R9
{Body}
W2
INPUT
#18
YEL R1
1/4W
2K21
100V
C93
47P
C14
400V
1N
8
3
4
5
6
7
9
2
1
GRN
GRN
YEL
GRY
RED
GRY
RED
BLK
T1
{Description}
BLK
1327(E)
R7
1/4W
113K
3682
W8YEL
C.T.
C1
400V1N
R6
1/4W
1K5 C20
63V
470N
N186
C80
100V
100N
P8:A
4423
M
15A
20K
MID
N85
P6:A
4424
M
1B
100K
TREBLE
R8
1/4W
113K
100V
C83
6N8
1/4W
4K7
R24
1/4W
100K
R41
MINI
8
V+
4V-
U9:C
63V
C71
10U
51V0
1N5262B D24
0W5
2W30:B0
3W30:C0
R148
1/4W
8K2
R149
1/4W
12K
D6
1N5262B
0W5
51V0
P10:A
4423
M
15A
20K
Master
2
1
6880
U6:A
4N35
N87
C25
50V
22U
LD5
YEL
STANDBY
R99
1/4W
33K
LD1
RED
BOOST
R70
1/4W
220K
GND
R65
1/4W
820R
S5:A
3436
SPKR.DEFEAT
R100
1/4W
36K
CH-SELECT
S2:B
3522
DOWN UP
R84
1/4W
27K
R79
1/4W
39K
R53
1.0W
FLMP
220R
C55
100V
3N3
-15V
GND
R66
1/4W
820R
C59
16V
33U
R118
1/4W
10K
C56
100V
680P
C38
100V100N
R120
1/4W
10K
C92
16V
33U
R54
1.0W
FLMP
220R
C60
16V33U
8
V+
4V-
U3:C
R110
1/4W
470R
4148
D5 D4
4148
R90
1/4W
4K7
GND
R55
1/4W
10K
R106
1/4W
10K
C58
100V220P
R93
1/4W
12K
1/4W
33R
R91
8
V+
4V-
U7:C
R58
1/4W
10K
W18
#18
BLK
GND
W17
#18
YEL
SPKR
SRT J6
...
SPEAKER OUT
3914
J10
REV.RETURN
3914
J9
RCA SNGL PCB MT HORZ
REV.SEND
P5:A
4425
M
15A
500K
GAIN
8
V+
4V-
U1:C
11 W26:K0
9W26:I0
7W26:G0
5W26:E0
3W26:C0
C82
250V 4N7
C22
250V47N
C6
100V470P
C11
50V470P
NET00063
A2SENS
A1SENS
NET00081
NET00080
B2SENS
B1SENS
C46
100V22N
R89
1/4W
24K
3682
W9GRY
LO.V
8W26:H0
10 W26:J0
12 W26:L0
3682
W7GRY
LO.V
6W26:F0
4W26:D0
2W26:B0
1W26:A0
{Function}
3682
W19
LINE
BLK
3682
W21BLK
LINE
3682
W20
FROM SWCH
BLK
Q1:A
2X_TRIODE_HCT
{Body}
Val
.
C17
400V1N
R23
1/4W
220K
C16
400V2N2
N108
N109
R11
1/4W
47K
W38
#18
RED
To W37
C77
25V
470U
C74
25V
100U
R144
1/2W
18R
2X_TRIODE_HCT
Q2:C
.
2X_TRIODE_HCT
Q1:C
.
C75
25V
470U
C73
25V
100U
2X_TRIODE_HCT
Q12:C
.
C69
450V
82U
Q10:B
PENTODE
.
C24
250V
4N7
C18
100V100N
C5
100V47N
R17
1/4W
1M
C8
50V
22U
C12
250V10N
C23
100V470P
R14
1/4W
MINI
100K
C86
50V330P
1/4W
100K
R133
MINI
1N4148
D20
100V
C10
220P
R126
1/4W
1M
R145
1/4W
MINI
100K
100V
C84
3N3
8
0W29:H
6
0W29:F
4
0W29:D
9
0W29:I
7
0W29:G
5
0W29:E
1
0W29:A .
R139
1/4W
36K
C63
450V
10U
1N5262B
0W5
51V0
D23 1N5262B
0W5
51V0
D22
R124
1/4W
100K
R121
1/2W
8K2
R131
1/4W
1M
R130
1.0W
FLMP
0R47
C88
63V150N
50V
C28
22U
R150
1/4W
33K
D2
4148
N307
N308
TO92
MPSA06
Q4
5103
D1
4148
S6:B
3522
DOWN UP
Contour
WHT
R115
1/4W
68K
TO92
MPSA56
Q14
5104
C43
400V22N
R74
1/4W
470R
R73
1/4W
220K
C52
63V330N U8:B
TL072CP R103
1/4W
4K7
C54
100V
68N
C61
16V33U
R47
1/4W
4K7
S3:A
3522
DOWN UP
BOOST
TO92
BC560C
Q15
5102
U1:B
TL072CP
R82
1/4W
47K
R83
1/4W
47K
W31
#18
YEL
SPKR
B2SENS
A2SENS
3682
W12BLU
PLATE
8
V+
4V-
U8:C
U8:A
TL072CP
R109
1/4W
10K
R104
1/4W
MINI
620R
R105
1/4W
MINI
620R
J8:A
3923
LINE.OUT
Q17
5104
TO92
MPSA56
1/4W
47R
R112
Q18
5103
TO92
MPSA06
C50
100V100N
R52
1/4W
10K
R97
1/4W
4K7
C35
100V220P
R86
1/4W
47K
R88
1/4W
24K
C34
100V220P
C33
16V33U
C31
100V220P
C32
100V220P
8
V+
4V-
U2:C
U2:A
TL072CP
R49
1/4W
MINI
620R
R50
1/4W
MINI
620R
{Value}
SCH_SPDT
S8
NC
COM
NO
K1:A
Q1:B
2X_TRIODE_HCT
{Body}
Val
.
P3:A
4423
M
15A
20K
MID
P2:A
4425
M
15A
500K
BASS
W1
INPUT
YEL
#18
NC
COM
NO
K2:A
NC
COM
NO
K2:B
1/4W
82K
R158
MINI
N52
S4:B
3522
DOWN UP
Scoop
WHT
S1:A
3522
DOWN UP
BRIGHT
C4
100V47N
R18
1/4W
MINI
100K
BRIGHT
S1:B
3522
DOWN UP
Q2:A
2X_TRIODE_HCT
{Body}
Val
.
S6:A
3522
DOWN UP
Contour
WHT
6873
Q20
TO126
MJE340
Hi-Reg
63V
C72
100U
W37
#18
RED
To W38
2
0W29:B
3
0W29:C
R128
1/4W
680K
DS
G
Q19
6730
N
IRF830
TO220
{Function}
S4:A
3522
DOWN UP
Scoop
WHT
TO92
BC550C
Q7
5101
TO92
MPSA06
Q5
5103
C+
C-
K2:C
R31
1/4W
10K
TO92
BC550C
Q6
5101
N309
Q12:A
2X_TRIODE_HCT
{Body}
Val
.
Q12:B
2X_TRIODE_HCT
{Body}
Val
.
R71
1/4W
100K
MINI
R72
1/4W
82K
MINI
Q9:A
PENTODE
{Body}
Val
.
Q10:A
PENTODE
{Body}
Val
.
C47
50V
22U
C42
400V22N
C48
50V
22U
STANDBY
S7:B
3522
DOWN UP
TO92
BC560C
Q16
5102
R46
1/4W
4K7
S2:A
3522
DOWN UP
CH-SELECT
SRT J11
GoldGold .
Effects Insert
3682
W15BLK
SPKR
1
2
3
5
4
BLU
BLK
GRN
BRN
{Description}
T2
RED
1327M
R108
1/4W
10K
U3:B
TL072CP
SRT J5
HEADPHONES/LINE.OUT
...
U7:B
TL072CP
P12
4497
M
B LIN
10K
EFF.RETURN
C91
16V33U
U2:B
TL072CP SRT J4
EFF.RETURN
...
C37
25V100U
R87
1/4W
47K
SRT J2
Gold Gold .
FT.SWITCH
P1:A
4424
M
1B
100K
TREBLE
"STYLE_P29""STYLE_P32"
C+
C-
K1:C
SRT J3
EFF.SEND
.. .
RING
J1
INPUT
Q11:A
PENTODE
{Body}
Val
.
Q8:A
PENTODE
{Body}
Val
.
S7:A
3522
DOWN UP
STANDBY
NC
COM
NO
K1:B
KNOBPART#FUNCTIONREF
MODEL(S):-
{NEW}
N
N
N
N
N
N
N
N
N
N
N
N
K
K
K
4424
4425
4423
4425
4497
4497
4423
4423
4425
P
P
P
TREBLE
MID
GAIN
EFF.SEND
EFF.RETURN
PRESCENCE
REVERB
VOLUME
F
F
F
P1,P6
P2,P7
P3,P8
P5
P11
P12
P10
P13
P4,P9
R
R
R
BASS
8430
8430
8430
8430
N/A
N/A
8430
8430
8430
POTLIST
YCV80
9
10
11
12
13
MODEL(S):-
DATE VER# DESCRIPTION OF CHANGE#
1
2
3
4
5
6
7
8Add R160 10K from wiper to top of P13
Add R159 in series with Q20 output.
pc#6544 D6 30V ->33V, C19 150N ->330N, C20 330N->470N,
C15 1N->470P, C17 470P->1N, R23,R23 470K->220K
C39, C40 100N->10N.
.
2.10
.
.
.
.
.Move C93 47P to be across R2
Add C166 10N across R122
Value changes to tweak sound
Added Skrn outline to BE tube sockets
N
to line up, change shearing to routing
Remove cutouts for BE tube sockets, move ribbons cables
.
2.00
1.00
.
V
.
1.00p1
1.00p0
2001 09 20
2001 08 13
.
D
.
2001 06 05
YCV80
First Prototype2001 05 08
.
M602 PCB DATABASE HISTORY
.
2001 10 10
9
10
11
12
13
MODEL(S):-
DATE VER# DESCRIPTION OF CHANGE#
1
2
3
4
5
6
7
8
N
N
N
N
R124 47K TO 100K, D25 TO A JUMPER
V
V
V
V
2.70
D
D
D
D
SEP 03,2002
PC#6541 R124 100K TO 47K
ADD TRANSFORMERS
PC#6512 D11,12,13,14 MR854 TO 1N5408
C66 220N/250V TO 10u/450V
D25,D26 51V ZENER IN SERIES
PC#6475 REPLACE R125,R122,C87,Q21 WITH D6,D22,D23,D24
C11 220p TO 470p
2.60
2.50
2.40
2.30
.
2.20
MAR 26, 2002
FEB 26, 2002
NOV 30 2001
.
YCV80
M602.PCB_DATABASE_HISTORY
PC#6456 C16 1N TO 2N2, R148 10K TO 8K22001 10 17
JUN 27 2002

V7.00M602Top Assy
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
R
R
V7.00M602Pcb Mech
Z436
#3796
Devices
#3850
#8806
#8800
V
T
R
V
T
R
V
T
R
V
T
R
V
T
R
V
RT
V
T
RV
T
R
GUIDE
ETCH
CNONC
TL072CP
V
T
R
GUIDE
ETCH
G1
SIG
G3
G2
RCA
G1
SIG
G3
G2
RCA
TL072CP
GUIDE
ETCH
RT
V
B E C
V
T
R
V
T
R
V
T
RV
T
R
24
-
+
24
-
+
NOL
NCL
NOR
NCR
CL CR
-
+
-
+
NOL
NCL
NOR
NCR
CL CR
NOL
NCL
NOR
NCR
CL CR
V
T
R
NOL
NCL
NOR
NCR
CL CR
NOL
NCL
NOR
NCR
CL CR
TL072CP
V
T
R
BEC
LOC
NOL
NCL
NOR
NCR
CL CR
GUIDE
ETCH
CLINCH
ORIGIN
77
V
T
R
V
T
R
GUIDE
ETCH
GUIDE
ETCH
4N35
V
T
R
GUIDE
ETCH
CNONC
TL072CP
-
+
"STYLE_P32"
"STYLE_P29"
SOCKET
TAB
SOCKET WITH DIRECTION
NORMAL
NORMAL LARGE
SOCKET UPSIDE DOWN
TL072CP
TL072CP
77
RING
TIP-SW
TIP
SLEEVE
RING-SW
21
CLICK
IN
OUT
7
7
KNOBPART#FUNCTIONREF
MODEL(S):-
{NEW}
YCV80
POTLIST
N
N
N
N
N
N
N
N
N
N
N
N
K
K
K
P
P
P
F
F
F
R
R
R
BASS 4425P2,P7
P12 EFF.RETURN 4497
P11 EFF.SEND 4497
P5 GAIN 4425
MID 4423P3,P8
P10 PRESCENCE 4423
P13 REVERB 4423
P1,P6 TREBLE 4424
VOLUME 4425P4,P9
8430
8430
8430
8430
8430
8430
N/A
N/A
8430
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER#DATE
MODEL(S):-
8
7
6
2001 10 10 2.10
.
.
.
.
pc#6544 D6 30V ->33V, C19 150N ->330N, C20 330N->470N,
C15 1N->470P, C17 470P->1N, R23,R23 470K->220K
C39, C40 100N->10N
M602 PCB DATABASE HISTORY
2001 05 08
2001 06 05 1.00p0 1.00p1
..
First Prototype
Remove cutouts for BE tube sockets, move ribbons cables
to line up, change shearing to routing
YCV80
2001 07 05 1.00p2 Moved Send and Return pots out 0.075"
.. Added Skrn outline to BE tube sockets
2001 08 13 1.00 Value changes to tweak sound
Add C166 10N across R122
.
2001 09 20
.
2.00
.
.
..
Move C93 47P to be across R2
Add R160 10K from wiper to top of P13
Add R159 in series with Q20 output.
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER#DATE
MODEL(S):-
8
7
6
JUN 26 2002
APR 29 02
Apr 10,2002 5.00
5.10
6.00
6.10
JUL 05 2002
SEP 03, 2002
new pads and holes for 3921 jack
C15 MOVED ADD JUMPER X64
PC#6541 R124 100K TO 47K
PC#6544 MOVE TRACES RE SLD BRDGING
PC#6563 R124 47K TO 100K D25 TO A JMP
D
FEB/26/02
JAN/17/02 3.00
4.00
V
YCV80
2.20
.
2.30
2001 10 17
.
NOV 30 2001
.
C66 220N/250V TO 10u/450V
D25,D26 51V ZENER IN SERIES
PC#6475 REPLACE R125,R122,C87,Q21 WITH D6,D22,D23,D24
470P, R148 10K TO 8K2
PC#6456 C16 1N TO 2N2, C11 220p TO
PC#6484 UPDATE SOLDERMASK FOR RCA JACKS AND TABS
PC#6512 D11,12,13,14 MR854 TO 1N5408
NEW PADS FOR TABS, RCA JACKS
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER#DATE
MODEL(S):-
8
7
6
D
D
DV
V
V
V
V
D
D
N
N
N
N
N
D
D
DV
V
V
YCV80
7.00
V
V
V
NOV 18 2002
D
D
D
M602
N
N
N
SHORTS
MOVE D11 D12 D13 D14 TO ELIMINATE
N
N
N
7
V7.00
M602
R1142M2
C13
1N
C9
3N3
R88
24K
R8147K
X11
X21
R8427K
X23 R24
4K7
R63
10R
1.0W
X39
C31
220P
C32
220P X24
X73
.
.
.
C17
1N
C20
470N R17
1M
C22
47N
X40
R68
820R
R211M
X33 R18100K
R41K5
R5210K R85 27K
X40 X27
R95
4K7
R8 113K
R97 4K7 R136 1M
X30
R137 2K2
D8
4004
X41
R118
10K
R75 1M
R77
10K
C1
1N
R1147K
C74
100U
25V
R133100K
X47 C86 330P
C2
47N
X45
D20 4148
C3
47N
C30
330N
X46 R121 1/2W
8K2
X75
R115
68K
C83
6N8
C52
330N
R159
220R0 R140 100R0 X69
C71
10U
63V
X48 X66
X67
R784K7
C56 680P
X51
D2
4148
D17
4004
X70
R21M
R20
220K
C93
47P
R89 24K
C21
47N
R904K7
R5610K
R87 47K X58
R66 820R
X9
X8
R155 100K
C36
47N X26
D5 4148
C12
10N
R9218K
R94
180K
C46
22N R79 39K
R71
100K
R131
1M
R154220R R130
0R47
1.0W
R35 4K7
R112 47R
R111 47R
X16
R451K
X15
X7
X43 X72
X65
R38 47R
R105
620R
R107
10K
C57
220P
R106
10K
C29
220P R48 10K
X57
C84
3N3
C53
330N X54 X14
X55
R100
36K D194148
R98
1K5 X20
C27
1N
X31
R102
4K7
R101
4K7 R3310KR156 10K
R442K2
D18
4004
R10 113K
X61
X63
R76 1M
X34
X10
R1132M2
X40
R25
100K
X56
R7282K
X42 X44
W28
3674
C43
22N
D10
4004
X37
W4
GND
#18
BLK
W39
GND
#16
GRN
W2
INPUT
#18
YEL
W44
R57
10K
C34
220P
C35
220P
R65
820R
X22
R61
10R
1.0W
X12
R7 113K
C7
1U X1
R27220K
K2
RELAY 2C
X38
U2
R55
10K
Q13
MPSA56
R8047K
W12
BLU
PLATE
Q23
BC550C
R41
100K
R5
2K2
P9
VOLUME
4425
15A
500K
C19
330N
R86
47K
C47
22U
50V
R144 1/2W
18R
R9
249K
C16
2N2
C14
1N
R158
82K
C88
150N
C24
4N7
R16
100K
P6
TREBLE
4424
1B
100K
C38
100N
X25
R23
220K
R6
1K5
R22
220K
C90
150N
X64
REV SEND
3914
Q14
MPSA56
R70 220K
R62
10R
1.0W
X3
X2
C5
47N
C50
100N
J10
REV RETURN
3914
C48
22U
50V
R64
10R
1.0W
C23
470P
R2827K
R26470K
R14
100K
R128 680K
D9 51V0
D7
10V0
X29
Q4
MPSA06
X62
P4
VOLUME
4425
15A
500K
Q18
MPSA06
R127
2M2
P1
TREBLE
4424
1B
100K
C80
100N
C73
100U
25V
C79
100N
3610
W30
C42
22N
R126
1M
W27
3674
Q6
BC550C
C11
470P
C60
33U
16V
X36 C63
450V
10U
W33
GND#18
BLK
W35
GND#18
BLK
C85
1N
R116 18K
U9
R146
100K
R147 24K
X17
R15
100K
R46
4K7
C61
33U
16V
Q20
Hi-Reg
MJE340
W38
To W37
#18
RED
R124
100K
R141 100R0
R145 100K
X68
P3
MID
4423
15A
20K
X50
X49
C553N3
R139
36K
R138
36K
W10
GRN
FIL
C65
100N
C41
82N
P13
REVERB
4423
15A
20K
C76
470U
25V
W6
RED
HI.V
Q7
BC550C
Q5
MPSA06
W18
GND
#18
BLK
D15
4004
C75
470U
25V
R1351K
LD3
OPERATE
RED
LD5
STANDBY
YEL
R134
1/2W
470R
W1
INPUT
#18
YEL
R12K21
W3
GND
#18
BLK
R58
10K
W40
GND
#16
GRN
R31K54
X4
WHT
S3
BOOST
LD1
BOOST
RED
C10220P R13
22K R19
220K
C33 33U
16V
R54
1.0W
220R
LD2
CH1
YEL
R49
620R
R69 220K
R50
620R
C89 10N
X18
R60
1.0W
220R X13
R152
62K
S4
Scoop
WHT
R12
39K
C37
100U
25V
R83
47K
D4 4148
R51 1K R8247K
R9133R
W14
PLATE
X5
R96
100K
R67 820R X28
C49
470P
R93
12K
WHT
S2
CH-SELECT
C72
100U
63V
C67
220N
250V
R153220R R132220R0
R157
220K
2.0W
C26
100N
D1 4148
Q17
MPSA56
R110 470R
R117 4K7
Q19
HI.V REG
IRF830
R104
620R
U4
.
6872
MC7815CT
TO220
R31
10K
R36 1/2W
2K
WHT
S1
BRIGHT
C58
220P
R108
10K
R43
100K
U5
.
6871
MC7915CT
TO220
C66
450V
10U
X76
Q15
BC560C
R3410K
S6
Contour
WHT
X32
R9933K
R11924K
C51
330N
C64
450V
10U
X53 R30 2.0W
2K2
R37 220R
U8
D34148
R103
4K7
C54
68N
C92 33U
16V
R3947RX19
R474K7
Q16
BC560C
W5
RED
HI.V
D13
1N5408
C28
22U
50V
R4210K
R32
10K
R160 10K
D16
4004
WHT
S7
STANDBY
X74
.
.
.
J5
HEADPHONES/LINE.OUT
R142
1/2W
18R R73 220K
Gold
Gold
.
J2
FT.SWITCH
X35
C44
220N
R151
22K
R148 8K2
R29
47K
X6
R40
100R
D6
51V0
D2151V0
D2351V0
D2451V0
C39
10N
C40
10N
X71
C91
33U
16V
.
.
.
C45
220N
W13
RED
B+
R150
33K
C18
100N
P5
GAIN
4425
15A
500K
R149
12K
Q22
BC550C
C68
220N
250V
R129
470R
R74
470R
W37
To W38
#18
RED
C15
5418
470P
C8
22U
50V
C25
22U
50V
P8 MID
4423
15A
20K
P7
BASS
4425
15A
500K
C447N
C59
33U
16V
R109
10K
U6
W41
#16 CHASSIS
GRN
W15
BLK
SPKR
D2251V0
W11
GRN
FIL
3610
W29
Q3
MPSA06
P2
BASS
4425
15A
500K
W17
SPKR
#18
YEL
W8
YEL
C.T.
W7
GRY
LO.V
W22
WHT
LINE IN
W20
BLKFROM SWCH
W21
BLK
LINE
W19
BLK LINE
D121N5408
W32
GND
#18
BLK
YCV80
P10
MASTER VOLUME
4423
15A
20K
R53
1.0W
220R
R123
5.0W
390R
Q8
.Body
Val
Q9
.Body
Val
K1
RELAY 2C
U7
R59
1.0W
220R
Q11
.
Body
Val
LD4
CH2
GRN
C6
470P
U3
C62
450V
10U
U1
W36
SPKR
#18
YEL W34
SPKR
#18 YEL
W16
GRN
SPKR C78
470U
25V
C82
4N7 250V
C81
22N 275V
C77
470U
25V
C70
450V
82U
W31
SPKR
#18
YEL
W9
GRY
LO.V
D14
1N5408
D11 1N5408
Q1
.
Body
12AX7
.
.
.
J4 EFF.RETURN
BOT TOP
WIP
P12
EFF.RETURN
10K
.
.
.
J3
EFF.SEND
BOT TOP
WIP
P11
EFF.SEND
10K
R143
1/2W
18R
Q2
.
Body
12AX7
J8
LINE.OUT
BUTTON
. . .
J6
LINE_IN
.
.
.
J7
LINE_IN
S5
SPKR.DEFEAT
X52
R120 10K W25
36246in 12C-26AWG RIBBON CABLE 098
W23 YsPart
C69
450V
82U
W26
3624
Q10
.Body
Val
Gold
Gold
-
J11
Effects Insert
Q12
.
Body
Val

19 19
18 18
17 17
16 16
15 15
14 14
13 13
12 12
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
R
R
S
S
T
T
U
U
V
V
W
W
X
X
Y
Y
Product
Filename:
Date:
PCB# ofSheet
Rev:
21
2.70
M602
M602 SCH V2.60.SCH2001
YCV80
Tue Sep 03, 2002
Guitar Amp
Product
Filename:
Date:
PCB# ofSheet
Rev:
21
2.70
M602
M602 SCH V2.60.SCH2001
YCV80
Tue Sep 03, 2002
Guitar Amp
+250V
+15V
-15V
+250V
+15V
GND
D16
4004
4004
D18
4004
D17
D15
4004
GND
GND
-15V
+15V
GND
-15V
+15V
R39
1/4W
47R
R38
1/4W
47R
R35
1/4W
4K7
GND
GND
GND
1/4W
10K
R160
GND
GND
-15V
GND
R48
1/4W
10K
R36
1/2W
2K
R69
1/4W
220K
R85
1/4W
27K
GND
NET00079
11
0W25:K
NET00124
9
0W25:I
NET00196NET00196
7
0W25:G
-15V
5
0W25:E
NET00089
3
0W25:C
NET00060
LINE
+250V
GND
GND
3682
W11GRN
FIL
+250V
+15V
GND
C65
250V100N
GND
NET00066
NET00165
NET00095
GND
-15V
NET00147
+15V
GND
+250VRAW
D7
1N5240BRL10V0
0W5
GND
C40
100V10N
GND
GND
NET00147
NET00170
GND
-ABIAS
A1SENS
A1SENS
GND
R43
1/4W
MINI
100K
C29
100V220P
-BBIAS
NET00094
NET00093
-15V
GND
GND
C49
100V470P
-15V
-15V
+15V
3682
W14
PLATE
BRN
+15V
GND
NET00026
NET00125
GND
8
0W25:H
12
0W25:L
10
0W25:J
GND
6
0W25:F
+15V
NET00065
4
0W25:D
1
0W25:A
{Function}
2
0W25:B
W41
#16
GRN
CHASSIS
C81
275V
22N
CORD
DPST CE ONLY
S9
W4
GND
#18
BLK
GND
W39
#16
GRN
GND
W40
#16
GRN
GND
3682
W22WHT
LINE IN
R2
1/4W
1M
R27
1/4W
220K
R3
1/4W
1K54
C7
63V
1U
C21
250V47N
+250V
3682
W10
FIL
GRN
1/4W
220K
R22
R25
1/4W
MINI
100K
1/4W
2M2
R113
C3
100V47N
C2
100V47N
R141
1/8W
FLMP
100R0
R140
1/8W
FLMP
100R0
Q2:B
2X_TRIODE_HCT
{Body}
Val
.
R10
1/4W
113K
C15
400V 2N2
P4:A
4425
M
15A
500K
VOLUME
C9
100V6N8
R13
1/4W
100K
C78
25V
470U
OUTIN
U5
MC7915CT
6871 .
TO220
.
C76
25V
470U
OUTIN
U4
6872
MC7815CT
.
TO220
.
Q9:B
PENTODE
.
Q8:B
PENTODE
.
1/4W
62K
R152
R12
1/4W
47K
R19
1/4W
470K
R20
1/4W
470K
-15V
C79
100V
100N
R143
1/2W
18R
Q11:B
PENTODE
.
3682
W5RED
HI.V
3682
W6RED
HI.V
P7:A
4425
M
15A
500K
BASS
R16
1/4W
MINI
100K
R21
1/4W
1M
R4
1/4W
1K5
R142
1/2W
18R
1N5408
D13
1N5408
D14
D11
1N5408
D12
1N5408
GND
P9:A
4425
M
15A
500K
VOLUME
R26
1/4W
470K
C85
400V1N
1/4W
24K
R147
R146
1/4W
MINI
100K
R15
1/4W
MINI
100K
GND
R138
1/4W
36K
C62
450V
10U
R123
5.0W
390R
C70
450V
82U
2.0W
220K
R157
10MM
-15V
TO92
BC550C
Q23
5101
R28
1/4W
27K
U9:B
TL072CP
U9:A
TL072CP
8W30:H0
6W30:F0
4W30:D0
9W30:I0
7W30:G0
5W30:E0
1W30:A0
.
4004
D10
R137
1/4W
MINI
2K2
C66
450V
10U
C67
250V
220N
C68
250V
220N
R129
1/4W
470R
4004
D8
63V
C90
150N
C89
100V10N
1/4W
22K
R151
R29
1/4W
47K
R116
1/4W
18K
1N5262B
D9
0W5
51V0 R136
1/4W
1M
C64
450V
10U
1N5262B
51V0
D21
0W5
R159
1/8W
FLMP
220R0
6
5
4
6880
U6:B
4N35
R127
1/4W
2M2
Q22
5101
BC550C
TO92
R132
1/8W
220R0
FLMP
2.0W
2K2
R30
TO92
MPSA06
Q3
5103
R44
1/4W
2K2
MINI
C27
400V1N
R32
1/4W
10K
R45
1/4W
1K
1/4W
10K
R156
R78
1/4W
4K7
C41
100V82N
R76
1/4W
1M
R75
1/4W
1M
R77
1/4W
10K
C39
100V10N
+15V
R135
1/4W
1K
R42
1/4W
10K
R33
1/4W
10K
4148
D19
C26
100V100N
R34
1/4W
10K
LD4
GRN
CH2
C53
63V330N
LD3
RED
OPERATE
R134
1/2W
470R
GND
1/4W
220R
R37
R40
1/4W
100R
LD2
YEL
CH1
R81
1/4W
47K
R80
1/4W
47K
C44
63V
220N
R68
1/4W
820R
B1SENS
-ABIAS
-BBIAS
R98
1/4W
1K5
C51
63V330N
4148
D3
S5:B
3436
SPKR.DEFEAT
BOOST
S3:B
3522
DOWN UP
W24
Q13
5104
TO92
MPSA56
R60
1.0W
FLMP
220R
NET00096
R62
1.0W
10R
FLMP
R61
1.0W
10R
FLMP
B1SENS
R101
1/4W
4K7
R119
1/4W
24K
U1:A
TL072CP
W23
C30
63V
330N
+15V
C45
63V
220N
B2SENS
R67
1/4W
820R
R64
1.0W
10R
FLMP
R63
1.0W
10R
FLMP
GND
+15V
R102
1/4W
4K7
GND
P13:A
4423
M
15A
20K
REVERB
GND
GND
P11
4497
M
B LIN
10K
EFF.SEND
R59
1.0W
FLMP
220R
3682
W13
B+
RED
-15V
R117
1/4W
4K7
+15V
U7:A
TL072CP
R94
1/4W
180K
1/4W
100K
R155
MINI
R56
1/4W
10K
W33
#18
BLK
GND
W35
#18
BLK
GND
W34
#18
YEL
SPKR
W36
#18
YEL
SPKR
3682
W16GRN
SPKR
U3:A
TL072CP
R107
1/4W
10K
C57
100V220P
+15V
GND
R153
1/4W
220R
R154
1/4W
220R
1/4W
47R
R111
GND
R92
1/4W
18K
R96
1/4W
100K
MINI
C36
100V47N
R51
1/4W
1K
R57
1/4W
10K
W32
#18
BLK
GND
SRT J7
SPEAKER OUT
.
..
1/4W
4K7
R95
GND
GND
NAmer 3A
FUSE
F1
CE T2A
1/4W
2M2
R114
C13
400V
1N
W3
GND
#18
BLK
1/4W
2K2
R5
MINI 63V
C19
330N
1/4W
249K
R9
{Body}
W2
INPUT
#18
YEL R1
1/4W
2K21
100V
C93
47P
C14
400V
2N2
8
3
4
5
6
7
9
2
1
GRN
GRN
YEL
GRY
RED
GRY
RED
BLK
T1
{Description}
BLK
1327(E)
R7
1/4W
113K
3682
W8YEL
C.T.
C1
400V1N
R6
1/4W
1K5 C20
63V
470N
N186
C80
100V
100N
P8:A
4423
M
15A
20K
MID
N85
P6:A
4424
M
1B
100K
TREBLE
R8
1/4W
113K
100V
C83
6N8
1/4W
4K7
R24
1/4W
100K
R41
MINI
8
V+
4V-
U9:C
63V
C71
10U
51V0
1N5262B D24
0W5
2W30:B0
3W30:C0
R148
1/4W
8K2
R149
1/4W
15K
D6
1N5262B
0W5
51V0
P10:A
4423
M
15A
20K
Master
2
1
6880
U6:A
4N35
N87
C25
50V
22U
LD5
YEL
STANDBY
R99
1/4W
33K
LD1
RED
BOOST
R70
1/4W
220K
GND
R65
1/4W
820R
S5:A
3436
SPKR.DEFEAT
R100
1/4W
36K
CH-SELECT
S2:B
3522
DOWN UP
R84
1/4W
27K
R79
1/4W
39K
R53
1.0W
FLMP
220R
C55
250V
4N7
-15V
GND
R66
1/4W
820R
C59
16V
33U
R118
1/4W
10K
C56
400V
1N
C38
100V100N
R120
1/4W
10K
C92
16V
33U
R54
1.0W
FLMP
220R
C60
16V33U
8
V+
4V-
U3:C
R110
1/4W
470R
4148
D5 D4
4148
R90
1/4W
4K7
GND
R55
1/4W
10K
R106
1/4W
10K
C58
100V220P
R93
1/4W
12K
1/4W
33R
R91
8
V+
4V-
U7:C
R58
1/4W
10K
W18
#18
BLK
GND
W17
#18
YEL
SPKR
SRT J6
...
SPEAKER OUT
3914
J10
REV.RETURN
3914
J9
RCA SNGL PCB MT HORZ
REV.SEND
P5:A
4425
M
15A
500K
GAIN
8
V+
4V-
U1:C
11 W26:K0
9W26:I0
7W26:G0
5W26:E0
3W26:C0
C82
250V 4N7
C22
250V47N
C6
100V470P
C11
50V470P
NET00063
A2SENS
A1SENS
NET00081
NET00080
B2SENS
B1SENS
C46
100V22N
R89
1/4W
24K
3682
W9GRY
LO.V
8W26:H0
10 W26:J0
12 W26:L0
3682
W7GRY
LO.V
6W26:F0
4W26:D0
2W26:B0
1W26:A0
{Function}
3682
W19
LINE
BLK
3682
W21BLK
LINE
3682
W20
FROM SWCH
BLK
Q1:A
2X_TRIODE_HCT
{Body}
Val
.
C17
400V1N
R23
1/4W
220K
C16
400V2N2
N108
N109
R11
1/4W
47K
W38
#18
RED
To W37
C77
25V
470U
C74
25V
100U
R144
1/2W
18R
2X_TRIODE_HCT
Q2:C
.
2X_TRIODE_HCT
Q1:C
.
C75
25V
470U
C73
25V
100U
2X_TRIODE_HCT
Q12:C
.
C69
450V
82U
Q10:B
PENTODE
.
C24
250V
4N7
C18
100V100N
C5
100V47N
R17
1/4W
1M
C8
50V
22U
C12
250V10N
C23
100V470P
R14
1/4W
MINI
100K
C86
50V330P
1/4W
100K
R133
MINI
1N4148
D20
100V
C10
6N8
R126
1/4W
1M
R145
1/4W
MINI
100K
100V
C84
3N3
8
0W29:H
6
0W29:F
4
0W29:D
9
0W29:I
7
0W29:G
5
0W29:E
1
0W29:A .
R139
1/4W
36K
C63
450V
10U
1N5262B
0W5
51V0
D23 1N5262B
0W5
51V0
D22
R124
1/4W
100K
R121
1/2W
8K2
R131
1/4W
1M
R130
1.0W
FLMP
0R47
C88
63V150N
50V
C28
22U
R150
1/4W
27K
D2
4148
N307
N308
TO92
MPSA06
Q4
5103
D1
4148
S6:B
3522
DOWN UP
Contour
WHT
R115
1/4W
91K
TO92
MPSA56
Q14
5104
C43
400V22N
R74
1/4W
470R
R73
1/4W
220K
C52
63V330N U8:B
TL072CP R103
1/4W
4K7
C54
100V
100N
C61
16V33U
R47
1/4W
4K7
S3:A
3522
DOWN UP
BOOST
TO92
BC560C
Q15
5102
U1:B
TL072CP
R82
1/4W
47K
R83
1/4W
47K
W31
#18
YEL
SPKR
B2SENS
A2SENS
3682
W12BLU
PLATE
8
V+
4V-
U8:C
U8:A
TL072CP
R109
1/4W
10K
R104
1/4W
MINI
620R
R105
1/4W
MINI
620R
J8:A
3923
LINE.OUT
Q17
5104
TO92
MPSA56
1/4W
47R
R112
Q18
5103
TO92
MPSA06
C50
100V100N
R52
1/4W
10K
R97
1/4W
4K7
C35
100V220P
R86
1/4W
47K
R88
1/4W
24K
C34
100V220P
C33
16V33U
C31
100V220P
C32
100V220P
8
V+
4V-
U2:C
U2:A
TL072CP
R49
1/4W
MINI
620R
R50
1/4W
MINI
620R
{Value}
SCH_SPDT
S8
NC
COM
NO
K1:A
Q1:B
2X_TRIODE_HCT
{Body}
Val
.
P3:A
4423
M
15A
20K
MID
P2:A
4425
M
15A
500K
BASS
W1
INPUT
YEL
#18
NC
COM
NO
K2:A
NC
COM
NO
K2:B
1/4W
82K
R158
MINI
N52
S4:B
3522
DOWN UP
Scoop
WHT
S1:A
3522
DOWN UP
BRIGHT
C4
100V47N
R18
1/4W
MINI
100K
BRIGHT
S1:B
3522
DOWN UP
Q2:A
2X_TRIODE_HCT
{Body}
Val
.
S6:A
3522
DOWN UP
Contour
WHT
6873
Q20
TO126
MJE340
Hi-Reg
63V
C72
100U
W37
#18
RED
To W38
2
0W29:B
3
0W29:C
R128
1/4W
680K
DS
G
Q19
6730
N
IRF830
TO220
{Function}
S4:A
3522
DOWN UP
Scoop
WHT
TO92
BC550C
Q7
5101
TO92
MPSA06
Q5
5103
C+
C-
K2:C
R31
1/4W
10K
TO92
BC550C
Q6
5101
N309
Q12:A
2X_TRIODE_HCT
{Body}
Val
.
Q12:B
2X_TRIODE_HCT
{Body}
Val
.
R71
1/4W
100K
MINI
R72
1/4W
82K
MINI
Q9:A
PENTODE
{Body}
Val
.
Q10:A
PENTODE
{Body}
Val
.
C47
50V
22U
C42
400V22N
C48
50V
22U
STANDBY
S7:B
3522
DOWN UP
TO92
BC560C
Q16
5102
R46
1/4W
4K7
S2:A
3522
DOWN UP
CH-SELECT
SRT J11
GoldGold .
Effects Insert
3682
W15BLK
SPKR
1
2
3
5
4
BLU
BLK
GRN
BRN
{Description}
T2
RED
1327M
R108
1/4W
10K
U3:B
TL072CP
SRT J5
HEADPHONES/LINE.OUT
...
U7:B
TL072CP
P12
4497
M
B LIN
10K
EFF.RETURN
C91
16V33U
U2:B
TL072CP SRT J4
EFF.RETURN
...
C37
25V100U
R87
1/4W
47K
SRT J2
Gold Gold .
FT.SWITCH
P1:A
4424
M
1B
100K
TREBLE
"STYLE_P29""STYLE_P32"
C+
C-
K1:C
SRT J3
EFF.SEND
.. .
RING
J1
INPUT
Q11:A
PENTODE
{Body}
Val
.
Q8:A
PENTODE
{Body}
Val
.
S7:A
3522
DOWN UP
STANDBY
NC
COM
NO
K1:B
KNOBPART#FUNCTIONREF
MODEL(S):-
{NEW}
N
N
N
N
N
N
N
N
N
N
N
N
K
K
K
4424
4425
4423
4425
4497
4497
4423
4423
4425
P
P
P
TREBLE
MID
GAIN
EFF.SEND
EFF.RETURN
PRESCENCE
REVERB
VOLUME
F
F
F
P1,P6
P2,P7
P3,P8
P5
P11
P12
P10
P13
P4,P9
R
R
R
BASS
8430
8430
8430
8430
N/A
N/A
8430
8430
8430
POTLIST
YCV80
9
10
11
12
13
MODEL(S):-
DATE VER# DESCRIPTION OF CHANGE#
1
2
3
4
5
6
7
8Add R160 10K from wiper to top of P13
Add R159 in series with Q20 output.
pc#6544 D6 30V ->33V, C19 150N ->330N, C20 330N->470N,
C15 1N->470P, C17 470P->1N, R23,R23 470K->220K
C39, C40 100N->10N.
.
2.10
.
.
.
.
.Move C93 47P to be across R2
Add C166 10N across R122
Value changes to tweak sound
Added Skrn outline to BE tube sockets
N
to line up, change shearing to routing
Remove cutouts for BE tube sockets, move ribbons cables
.
2.00
1.00
.
V
.
1.00p1
1.00p0
2001 09 20
2001 08 13
.
D
.
2001 06 05
YCV80
First Prototype2001 05 08
.
M602 PCB DATABASE HISTORY
.
2001 10 10
9
10
11
12
13
MODEL(S):-
DATE VER# DESCRIPTION OF CHANGE#
1
2
3
4
5
6
7
8
N
N
N
N
R124 47K TO 100K, D25 TO A JUMPER
V
V
V
V
2.70
D
D
D
D
SEP 03,2002
PC#6541 R124 100K TO 47K
ADD TRANSFORMERS
PC#6512 D11,12,13,14 MR854 TO 1N5408
C66 220N/250V TO 10u/450V
D25,D26 51V ZENER IN SERIES
PC#6475 REPLACE R125,R122,C87,Q21 WITH D6,D22,D23,D24
C11 220p TO 470p
2.60
2.50
2.40
2.30
.
2.20
MAR 26, 2002
FEB 26, 2002
NOV 30 2001
.
YCV80
M602.PCB_DATABASE_HISTORY
PC#6456 C16 1N TO 2N2, R148 10K TO 8K22001 10 17
JUN 27 2002

V7.00M602Top Assy
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
R
R
V7.00M602Pcb Mech
Z436
#3796
Devices
#3850
#8806
#8800
V
T
R
V
T
R
V
T
R
V
T
R
V
T
R
V
RT
V
T
RV
T
R
GUIDE
ETCH
CNONC
TL072CP
V
T
R
GUIDE
ETCH
G1
SIG
G3
G2
RCA
G1
SIG
G3
G2
RCA
TL072CP
GUIDE
ETCH
RT
V
B E C
V
T
R
V
T
R
V
T
RV
T
R
24
-
+
24
-
+
NOL
NCL
NOR
NCR
CL CR
-
+
-
+
NOL
NCL
NOR
NCR
CL CR
NOL
NCL
NOR
NCR
CL CR
V
T
R
NOL
NCL
NOR
NCR
CL CR
NOL
NCL
NOR
NCR
CL CR
TL072CP
V
T
R
BEC
LOC
NOL
NCL
NOR
NCR
CL CR
GUIDE
ETCH
CLINCH
ORIGIN
77
V
T
R
V
T
R
GUIDE
ETCH
GUIDE
ETCH
4N35
V
T
R
GUIDE
ETCH
CNONC
TL072CP
-
+
"STYLE_P32"
"STYLE_P29"
SOCKET
TAB
SOCKET WITH DIRECTION
NORMAL
NORMAL LARGE
SOCKET UPSIDE DOWN
TL072CP
TL072CP
77
RING
TIP-SW
TIP
SLEEVE
RING-SW
21
CLICK
IN
OUT
7
7
KNOBPART#FUNCTIONREF
MODEL(S):-
{NEW}
YCV80
POTLIST
N
N
N
N
N
N
N
N
N
N
N
N
K
K
K
P
P
P
F
F
F
R
R
R
BASS 4425P2,P7
P12 EFF.RETURN 4497
P11 EFF.SEND 4497
P5 GAIN 4425
MID 4423P3,P8
P10 PRESCENCE 4423
P13 REVERB 4423
P1,P6 TREBLE 4424
VOLUME 4425P4,P9
8430
8430
8430
8430
8430
8430
N/A
N/A
8430
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER#DATE
MODEL(S):-
8
7
6
D
D
DV
V
V
V
V
D
D
N
N
N
N
N
D
D
DV
V
V
YCV80Q
7.00
V
V
V
NOV 18 2002
D
D
D
M602
N
N
N
SHORTS
MOVE D11 D12 D13 D14 TO ELIMINATE
N
N
N
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER#DATE
MODEL(S):-
8
7
6
JUN 26 2002
APR 29 02
Apr 10,2002 5.00
5.10
6.00
6.10
JUL 05 2002
SEP 03, 2002
new pads and holes for 3921 jack
C15 MOVED ADD JUMPER X64
PC#6541 R124 100K TO 47K
PC#6544 MOVE TRACES RE SLD BRDGING
PC#6563 R124 47K TO 100K D25 TO A JMP
D
FEB/26/02
JAN/17/02 3.00
4.00
V
YCV80Q
2.20
.
2.30
2001 10 17
.
NOV 30 2001
.
C66 220N/250V TO 10u/450V
D25,D26 51V ZENER IN SERIES
PC#6475 REPLACE R125,R122,C87,Q21 WITH D6,D22,D23,D24
470P, R148 10K TO 8K2
PC#6456 C16 1N TO 2N2, C11 220p TO
PC#6484 UPDATE SOLDERMASK FOR RCA JACKS AND TABS
PC#6512 D11,12,13,14 MR854 TO 1N5408
NEW PADS FOR TABS, RCA JACKS
13
12
11
10
9
DESCRIPTION OF CHANGE
5
4
3
2
1
# VER#DATE
MODEL(S):-
8
7
6
2001 10 10 2.10
.
.
.
.
pc#6544 D6 30V ->33V, C19 150N ->330N, C20 330N->470N,
C15 1N->470P, C17 470P->1N, R23,R23 470K->220K
C39, C40 100N->10N
M602 PCB DATABASE HISTORY
2001 05 08
2001 06 05 1.00p0 1.00p1
..
First Prototype
Remove cutouts for BE tube sockets, move ribbons cables
to line up, change shearing to routing
YCV80Q
2001 07 05 1.00p2 Moved Send and Return pots out 0.075"
.. Added Skrn outline to BE tube sockets
2001 08 13 1.00 Value changes to tweak sound
Add C166 10N across R122
.
2001 09 20
.
2.00
.
.
..
Move C93 47P to be across R2
Add R160 10K from wiper to top of P13
Add R159 in series with Q20 output.
7
V7.00
M602
R1142M2
C13
1N
C9
6N8
R88
24K
R8147K
X11
X21
R8427K
X23 R24
4K7
R63
10R
1.0W
X39
C31
220P
C32
220P X24
X73
.
.
.
C17
1N
C20
470N R17
1M
C22
47N
X40
R68
820R
R211M
X33 R18100K
R41K5
R5210K R85 27K
X40 X27
R95
4K7
R8 113K
R97 4K7 R136 1M
X30
R137 2K2
D8
4004
X41
R118
10K
R75 1M
R77
10K
C1
1N
R1147K
C74
100U
25V
R133100K
X47 C86 330P
C2
47N
X45
D20 4148
C3
47N
C30
330N
X46 R121 1/2W
8K2
X75
R115
91K
C83
6N8
C52
330N
R159
220R0 R140 100R0 X69
C71
10U
63V
X48 X66
X67
R784K7
C56 1N
X51
D2
4148
D17
4004
X70
R21M
R20
470K
C93
47P
R89 24K
C21
47N
R904K7
R5610K
R87 47K X58
R66 820R
X9
X8
R155 100K
C36
47N X26
D5 4148
C12
10N
R9218K
R94
180K
C46
22N R79 39K
R71
100K
R131
1M
R154220R R130
0R47
1.0W
R35 4K7
R112 47R
R111 47R
X16
R451K
X15
X7
X43 X72
X65
R38 47R
R105
620R
R107
10K
C57
220P
R106
10K
C29
220P R48 10K
X57
C84
3N3
C53
330N X54 X14
X55
R100
36K D194148
R98
1K5 X20
C27
1N
X31
R102
4K7
R101
4K7 R3310KR156 10K
R442K2
D18
4004
R10 113K
X61
X63
R76 1M
X34
X10
R1132M2
X40
R25
100K
X56
R7282K
X42 X44
W28
3674
C43
22N
D10
4004
X37
W4
GND
#18
BLK
W39
GND
#16
GRN
W2
INPUT
#18
YEL
W44
R57
10K
C34
220P
C35
220P
R65
820R
X22
R61
10R
1.0W
X12
R7 113K
C7
1U X1
R27220K
K2
RELAY 2C
X38
U2
R55
10K
Q13
MPSA56
R8047K
W12
BLU
PLATE
Q23
BC550C
R41
100K
R5
2K2
P9
VOLUME
4425
15A
500K
C19
330N
R86
47K
C47
22U
50V
R144 1/2W
18R
R9
249K
C16
2N2
C14
2N2
R158
82K
C88
150N
C24
4N7
R16
100K
P6
TREBLE
4424
1B
100K
C38
100N
X25
R23
220K
R6
1K5
R22
220K
C90
150N
X64
REV SEND
3914
Q14
MPSA56
R70 220K
R62
10R
1.0W
X3
X2
C5
47N
C50
100N
J10
REV RETURN
3914
C48
22U
50V
R64
10R
1.0W
C23
470P
R2827K
R26470K
R14
100K
R128 680K
D9 51V0
D7
10V0
X29
Q4
MPSA06
X62
P4
VOLUME
4425
15A
500K
Q18
MPSA06
R127
2M2
P1
TREBLE
4424
1B
100K
C80
100N
C73
100U
25V
C79
100N
3610
W30
C42
22N
R126
1M
W27
3674
Q6
BC550C
C11
470P
C60
33U
16V
X36 C63
450V
10U
W33
GND#18
BLK
W35
GND#18
BLK
C85
1N
R116 18K
U9
R146
100K
R147 24K
X17
R15
100K
R46
4K7
C61
33U
16V
Q20
Hi-Reg
MJE340
W38
To W37
#18
RED
R124
100K
R141 100R0
R145 100K
X68
P3
MID
4423
15A
20K
X50
X49
C554N7
R139
36K
R138
36K
W10
GRN
FIL
C65
100N
C41
82N
P13
REVERB
4423
15A
20K
C76
470U
25V
W6
RED
HI.V
Q7
BC550C
Q5
MPSA06
W18
GND
#18
BLK
D15
4004
C75
470U
25V
R1351K
LD3
OPERATE
RED
LD5
STANDBY
YEL
R134
1/2W
470R
W1
INPUT
#18
YEL
R12K21
W3
GND
#18
BLK
R58
10K
W40
GND
#16
GRN
R31K54
X4
WHT
S3
BOOST
LD1
BOOST
RED
R19
470K
R13
100K
C106N8
C33 33U
16V
R54
1.0W
220R
LD2
CH1
YEL
R49
620R
R69 220K
R50
620R
C89 10N
X18
R60
1.0W
220R X13
R152
62K
S4
Scoop
WHT
R12
47K
C37
100U
25V
R83
47K
D4 4148
R51 1K R8247K
R9133R
W14
PLATE
X5
R96
100K
R67 820R X28
C49
470P
R93
12K
WHT
S2
CH-SELECT
C72
100U
63V
C67
220N
250V
R153220R R132220R0
R157
220K
2.0W
C26
100N
D1 4148
Q17
MPSA56
R110 470R
R117 4K7
Q19
HI.V REG
IRF830
R104
620R
U4
.
6872
MC7815CT
TO220
R31
10K
R36 1/2W
2K
WHT
S1
BRIGHT
C58
220P
R108
10K
R43
100K
U5
.
6871
MC7915CT
TO220
C66
450V
10U
X76
Q15
BC560C
R3410K
S6
Contour
WHT
X32
R9933K
R11924K
C51
330N
C64
450V
10U
X53 R30 2.0W
2K2
R37 220R
U8
D34148
R103
4K7
C54
100N
C92 33U
16V
R3947RX19
R474K7
Q16
BC560C
W5
RED
HI.V
D13
1N5408
C28
22U
50V
R4210K
R32
10K
R160 10K
D16
4004
WHT
S7
STANDBY
X74
.
.
.
J5
HEADPHONES/LINE.OUT
R142
1/2W
18R R73 220K
Gold
Gold
.
J2
FT.SWITCH
X35
C44
220N
R151
22K
R148 8K2
R29
47K
X6
R40
100R
D6
51V0
D2151V0
D2351V0
D2451V0
C39
10N
C40
10N
X71
C91
33U
16V
.
.
.
C45
220N
W13
RED
B+
R150
27K
C18
100N
P5
GAIN
4425
15A
500K
R149
15K
Q22
BC550C
C68
220N
250V
R129
470R
R74
470R
W37
To W38
#18
RED
C15
5418
2N2
C8
22U
50V
C25
22U
50V
P8 MID
4423
15A
20K
P7
BASS
4425
15A
500K
C447N
C59
33U
16V
R109
10K
U6
W41
#16 CHASSIS
GRN
W15
BLK
SPKR
D2251V0
W11
GRN
FIL
3610
W29
Q3
MPSA06
P2
BASS
4425
15A
500K
W17
SPKR
#18
YEL
W8
YEL
C.T.
W7
GRY
LO.V
W22
WHT
LINE IN
W20
BLKFROM SWCH
W21
BLK
LINE
W19
BLK LINE
D121N5408
W32
GND
#18
BLK
YCV80Q
P10
MASTER VOLUME
4423
15A
20K
R53
1.0W
220R
R123
5.0W
390R
Q8
.Body
Val
Q9
.Body
Val
K1
RELAY 2C
U7
R59
1.0W
220R
Q11
.
Body
Val
LD4
CH2
GRN
C6
470P
U3
C62
450V
10U
U1
W36
SPKR
#18
YEL W34
SPKR
#18 YEL
W16
GRN
SPKR C78
470U
25V
C82
4N7 250V
C81
22N 275V
C77
470U
25V
C70
450V
82U
W31
SPKR
#18
YEL
W9
GRY
LO.V
D14
1N5408
D11 1N5408
Q1
.
Body
12AX7
.
.
.
J4 EFF.RETURN
BOT TOP
WIP
P12
EFF.RETURN
10K
.
.
.
J3
EFF.SEND
BOT TOP
WIP
P11
EFF.SEND
10K
R143
1/2W
18R
Q2
.
Body
12AX7
J8
LINE.OUT
BUTTON
. . .
J6
LINE_IN
.
.
.
J7
LINE_IN
S5
SPKR.DEFEAT
X52
R120 10K W25
36246in 12C-26AWG RIBBON CABLE 098
W23 YsPart
C69
450V
82U
W26
3624
Q10
.Body
Val
Gold
Gold
-
J11
Effects Insert
Q12
.
Body
Val

OU T PU T -T U BE
6L 6B
OU T PUT -T U BE
6L 6B
OU T PU T -T U BE
6L 6B
OU T PU T -T U BE
6L 6B
G R E E N
B L UER E DB R O W N
B L AC K
G R E Y
G R E Y
R E D
R E D
G R E E N
G R E E N
B L AC K WH IT E
F
O U TP U T
G R N
B L K
F
Y E LLO W
B L AC K
R E D
Y C V 80 AC W IR E S
O C T /2001
May /2003
G R E Y
G R E E N
G R E E N
R E D
B LA C K
From Pwr. Sup.-8"
From Input
Section-26"

OU T PU T -T U BE
6L 6B
OU T PUT -T U BE
6L 6B
OU T PU T -T U BE
6L 6B
OU T PU T -T U BE
6L 6B
G R E E N
B L UER E DB R O W N
B L AC K
G R E Y
G R E Y
R E D
R E D
G R E E N
G R E E N
B L AC K WH IT E
F
O U TP U T
G R N
B L K
F
Y E LLO W
B L AC K
R E D
Y C V80 AC C E W IR E S
O C T /2001
May /2003
G R E Y
G R E E N
G R E E N
R E D
B LA C K
1327E
240V
From Pwr. Sup.
8"
From Inp.
Section
26"

SERVICE BULLETIN: FEB. 20 / 2003
MODEL : YCV80
RE: POTENTIAL FAILURES OF POWER SUPPLY DIODES.
We have experienced an unusual number of failures amongst the rectifier
diodes supplied by a specific manufacturer. To this point in time ,we have
been able to determine that we have received a certain percentage of diodes
that have a weakness which surfaces after the unit has been run several
times. The symptoms described by customers will be “blowing fuses” or
“will not start up”. In either case it is likely that you have one of these bad
diodes.
When you experience this condition, we recommend that you replace all 4
rectifiers with industry standard part # 1N4007, or you can order 4007’s
from us as part # 6438. We recommend changing out all 4 rectifiers in order
to be 100% certain of no possible repeat failures.