WEB ACCESS: http://www.yorkville.com
Manual-Service-ycv50-00-1v8.pdf
WORLD HEADQUARTERS
CANADA
SERVICE MANUAL
TYPE: YS1003
YCV50
U.S.A.
Yorkville Sound
550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA
Voice: (905) 837-8481
Fax: (905) 837-8746
Quality and Innovation Since 1963
Yorkville Sound Inc.
4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA
Voice: (716) 297-2920
Fax: (716) 297-3689
Printed in Canada
IMPORTANT SAFETY INSTRUCTIONS
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 Manualshould be read and understood
before operation of your unit. Please, save these instruc
tions 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.
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.
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.
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.
safety-4v2.eps Aug 26/05
YCV50BLUE Parts List 2/15/2005
YS # Description Qty. YS # Description Qty. YS # Description Qty.
6397 JEWELED PILOT LAMP AMBER REG V1 1 3438 IEC PWR SOC W/.205TAB &FUSE 10A250V 1 3865 1/2 PLASTIC HEX SPACER #6 11
5906 RED 3MM LED 1V9 20MA .4SPCER T&R 1 3552 NYLON SPRING CLAMP 4 3858 3/4 PLASTIC HEX SPACER #4 7
6398 RED 5MM LED 1V5 20MA HIGH EFF 1 3810 4" NYLON CABLE TIE 14 7081 12" 8R 60WPGM SPKR CELEST VINT30 1
6399 YEL 5MM LED 1V5 20MA HIGH EFF 1 8430 YCV40 CHICKEN-BEAK KNOB 11 8482 3/8 1D FLAT WASHER 1
5907 YEL 3MM LED 1V9 20MA .4SPCER T&R 1 8638 AP MIXER SERIES PUSH SW BUTTON GREY 4 8488 3/8 INT TOOTH LOCKWASHE ZINC 1
5908 GRN 3MM LED 1V9 20MA .4SPCER T&R 1 3428 8' 3/18 SJT AC LINE CORD REMOVABLE 1 3511 #6 FLAT WASHER NYLON 2
6825 1N4148 75V 0A45 DIODE T&R 6 8264 YBA200/YCV LOGO EMBOSSED ALUMINUM 1 8491 #10 SPLIT LOCK WASHER BO 8
6438 1N4007 400V 1A0 DIODE T&R 10 8910 YORKVILLE PRODUCT MANUAL 1 8820 #8 FLAT WASHER JS500 4
6461 1N5240BRL 10V0 0W5 ZENER 5% T&R 1 8900 YORKVILLE WARRANTY CARD 2-YR UNLTD. 1 8817 #10 FLAT WASHER FOR 3/16" BOLT 8
6432 1N5248B 18V0 0W5 ZENER 5% T&R 1 YCV40POP YCV40/WR/T POINT OF PURCHASE BOOK 1 3522 DPDT MINI PC VERT SNP ALT 4
6475 1N5262B 51V0 0W5 ZENER 5% T&R 6 3674 9 CIR CABLE HOLDER .098 4 3698 SPST ROKR SW QUIK 180" AC PWR BL/BL 1
6731 7824 TO220 P 24V0 REG 1 8701 4-40 KEPS NUT ZINC 2 3731 SPRING RETAINER FOR OUTPUT TUBE 2
5101 BC550C TO92 NPN TRAN T&R TB 4 8800 6-32 KEPS NUT ZINC 4 3732 9 PIN PC MOUNT TUBE SOCKET BE 3
5103 MPSA06 TO92 NPN TRANSISTOR T&R TA 3 8890 1/4-20 CAGE NUT C79-88142027 4 3733 8 PIN PC MOUNT TUBE SOCKET 2
5104 MPSA56 TO92 PNP TRAN T&R TA 2 3830 TO218 PREGREASED MICA 56-78-2AP 2 12AX7 12AX7 DUAL TRIODE PREAMP TUBE 3
6873 MJE340 TO126 NPN TRANSISTOR TG 1 3850 TO-220 PLASTIC TRANSISTOR INSULATOR 2 EL34 EL34 E.H. EARLY MULLARD STYLE 2
6730 IRF830 TO220 NCH MFET TN 1 4599 22AWG SOLID SC WIR T&R JMP 58 1324 YCV40 POWER 120VAC 60HZ XFMR 1
6884 NE5532N IC DUAL OP AMP 2 5299 24AWG SOLID SC WIR RAD JMP 1 1324M YCV40 OUTPUT XFMR 1
6880 4N35 OPTO-COUPLER 1 4748 2.0W 3R9 5% T&R 1
6467 10K 10% THERMISTOR NTC TO-92 1 2008 1.0W 10R 5%FLAME PROOF T&R RES 2
5203 _47P 100V 2%CAP T&R RAD CER.2"NPO 1 4817 1/4W 47R 5% T&R RES 3
5197 220P 100V 2%CAP T&R RAD CER.2"NPO 2 2019 1/8W 100R0 1%FLAME PROOF T&R RES 2
5194 470P 1000V 10%CAP T&R RAD CER.2"Y5P 1 4852 1/4W 100R 5% T&R RES 2
5201 470P 100V 5%CAP T&R RAD CER.2"NPO 3 2022 1.0W 220R 5%FLAME PROOF T&R RES 2
5206 __1N 400V 5%CAP T&R RAD .2"FLM 3 4821 1/4W 470R 5% T&R RES 2
5422 __1N 50V 10%CAP T&R BEAD NPO 2 4891 1/4W 620R 5% T&R RES 2
5273 __1N5 200V 5%CAP T&R RAD CER.2"NPO 1 4822 1/4W 820R 5% T&R RES 2
5606 1N5 50V 5%CAP T&R RAD CER.2" X7R 1 4726 5.0W 1K 5% BLK RES 1
5208 __2N2 400V 5%CAP T&R RAD .2"FLM 2 4823 1/4W 1K 5% T&R RES 1
5274 __2N2 200V 5%CAP T&R RAD CER.2"NPO 1 4913 1.0W 1K 5% T&R RES 2
5209 __4N7 250V 5%CAP T&R RAD .2"FLM 3 4824 1/4W 1K5 5% T&R RES 5
6451 __4N7 250V 20%CAP BLK 'Y' 10MM AC 1 4631 1/2W 2K 5% T&R RES 2
5204 _10N 100V 10%CAP T&R RAD .2"FLM 1 4808 1/4W 2K 5% T&R RES 1
5840 _22N 400V 10%CAP BLK RAD POLY FLM 3 4847 1/4W 2K2 5% T&R RES 5
6435 _22N 275V 20%CAP BLK 'X2' 15MM AC 1 4827 1/4W 4K7 5% T&R RES 2
5224 _47N 100V 10%CAP T&R RAD .2"FLM 4 4828 1/4W 6K8 5% T&R RES 1
5841 _47N 250V 10%CAP RAD POLYFILM BULK 1 4663 1/2W 8K2 5% T&R RES 2
5227 _82N 100V 5%CAP T&R RAD .2"FLM 1 4829 1/4W 10K 5% T&R RES 10
5228 100N 100V 5%CAP T&R RAD .2"FLM 5 4983 1/4W 10K 5%MINI T&R RES 1
5314 100N 50V 10%CAP T&R BEAD X7R 1 4831 1/4W 18K 5% T&R RES 2
5865 100N 250V 10%CAP BLK RAD POLY FLM 2 4833 1/4W 27K 5% T&R RES 5
5231 220N 63V 10%CAP T&R RAD .2"FLM 2 4840 1/4W 33K 5% T&R RES 1
5882 220N 250V 10%CAP BLK RAD POLY FLM 2 4868 1/4W 36K 5% T&R RES 2
5233 330N 63V 5%CAP T&R RAD .2"FLM 1 4834 1/4W 47K 5% T&R RES 9
5234 470N 63V 10%CAP T&R RAD .2"FLM 2 4927 1/4W 47K 5% .2"U T&R RES 1
5254 __1U 63V 20%CAP T&R 4X7MM .2"EL 1 4586 1/4W 82K 5%MINI T&R RES 1
5257 __2U2 63V 20%CAP T&R RAD .2"EL 1 4838 1/4W 100K 5% T&R RES 11
5945 _10U 63V 20%CAP T&R RAD .2"EL 1 4942 1/4W 100K 5% .2"U T&R RES 1
5959 _10U 450V 20%CAP BLK EL 4 6120 1/4W 100K 5%MINI T&R RES 1
5631 _22U 50V 20%CAP T&R 6X7MM .2"EL 13 4776 1/4W 113K 1% T&R RES 3
5902 82U 450V 20%CAP BLK 22X30MM 1 4851 1/4W 120K 5% T&R RES 5
5267 100U 25V 20%CAP T&R RAD .2"EL 1 4668 2.0W 220K 5%10MM BODY T&R RES 1
5879 100U 16V 20%CAP T&R 8X7MM .2"EL 2 4841 1/4W 220K 5% T&R RES 2
5914 100U 63V 20%CAP BLK 10X13MM EL 1 6126 1/4W 220K 5%MINI T&R RES 4
5621 470U 63V 20%CAP BLK 12X25MM EL 1 6145 1/4W 249K 1%MINI T&R RES 1
TFS-2B TRAYNOR DUAL FOOTSWCH 10' CORD-BULK 1 4842 1/4W 330K 5% T&R RES 2
4423 _20K 15AAUDIO 9MM P32 4 4843 1/4W 470K 5% T&R RES 3
4424 100K 1B LIN 9MM P32 2 4844 1/4W 1M 5% T&R RES 6
4425 500K 15AAUDIO 9MM P32 5 4845 1/4W 2M2 5% T&R RES 1
713 25 X 20 X 50 2 MIL PLASTIC BAG 1 3610 10" 9C-26AWG RIB 3/4" NOTCH 0.1" 2
3976 SNAP ON 0.843" INSULATING BUSHING 2 3700 RELAY 2C 01AMP DC24 015MA PC-S 2
8522 RUBBER BUMPER WITH WASHER -SMALL- 4 3537 ACC# 4EB3C1B LONG REVERB 1
8563 CORNER, 2 LEGS NOTCED BLK PLASTIC 8 8865 4-40 X 5/16 PAN PH MS JS500 18
3478 CLIP 205/187X032 18-22AWG DISCO/INS 5 8741 4-40 X 1/2 PAN PH MS JS500 2
3489 CLIP 250X032 18-22AWG DISCO/INSL 2 8832 6-32 X 1/4 PAN PH TAPTITE JS500 11
3494 CLIP 205/187X020 14-16AWG DISCO/INS 2 8807 6-32 X 5/16 PAN PH MS JS500 3
3602 RING TERMINAL 18AWG WIRE & #8 SCREW 1 8801 6-32 X 3/8 PAN PH TAPTITE JS500 4
3682 250 MALE PCB TAB REEL 16 8829 6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA 11
NYS224 280 PLUG NEUTRIK NYS224 1 8755 #6 X 5/8 PAN PH TYPE A JS500 BLACK 2
3498 1/4" JCK PCB MT HORZ 3 8785 #8 X 3/4 OVAL PH TYPE A BLACK OXIDE 16
3523 1/4" JCK PCB MT HORZ GOLD T__ 1 8722 #8 X 1" PAN QUAD TYPE AB B/O 4
3528 1/4" JCK PCB MT HORZ GOLD TR_ 1 8809 10-32 X 1/4 PAN PH TAPTITE JS500 25
3921 1/4" JCK PCB MT VERT STER RT SWT 1 8756 #10 X 3/4 PAN PH TYPE A BLACK OXIDE 2
3890 36"90'RCA DUAL RED-WHITE PREFAB CBL 1 8727 #10 X 1" PAN PH TYPE A JS500 BLACK 4
3914 RCA SNGL PCB MT HORZ 2 8843 10-32 X 1 1/8 FLAT PH MS JS500 2
3451 EYELET SMALL 0.089 OD PLATED 13 8786 10-32 X 1 1/4 PAN QD MS JS500 BLACK 4
2403 T2A 5X20MM FUSE 1 8862 #10 X 1 1/2 PAN PH TYPE A JS500 4
8451 10" STRAP HANDLE,BLACK METAL ENDCAP 1 8770 1/4-20 X 1 5/16 TRUSS PH MS JS500 4
8604 10-32 T NUT 6 8905 YORKVILLE PRODUCT SCHEMATIC 1
8889 RUBBER GROMMET #2183-034-BL
K 4 3741 .5 SPACER ID-.171 OD-.25 #912-500 4
MODEL TYPE: YS1003
Block Diagram for YCV50
DESIGNED AND MANUFACTURED BY YORKVILLE SOUND
EQ
Treble/Bass/Mid
Preamp
V2:B
Ch. 2
Volume
Treble/Bass/Mid
Input
Mono
1/4-inch
0 dB
Channel
Select
K1
Preamp
V1:A
Boost
Preamp
V1:B
SPLITTER
12AX7
V3
DISCONNECT POWER W HE N
REPLACING TUBES
DÉBRANCHÉ L’AP PAREIL AVA NT
DE REMPLACER LES L AM PES
Preamp
V2:A
Channel
Select
EQ
K1
Ch. 1
Volume
12AX7
V2
PREAMP
Pre-Amp
Out
EL34
V5
12AX7
V1
POWER
EL34
V4
Reverb
Drive
U2
B
Footswitch
Accutronics ©
4EBC1B
Channel Select
Boost
Reverb
U1
B
Reverb
Rtn
Master
Volume
Splitter
V3
Power
Amp
V4
V5
Amp In
External
Speaker Out
+
12-inch Speaker
8-ohms
YS#7081
-
-
External
Speaker Out
+
BLOCK-DIAG-ycv50-1v20.ai
A
1 1
2 2
J1
3 3
4 4
5 5
B
RING
K1:A
6 6
7 7
8 8
9 9
-50Vdc
R74
R73
1/4W
1N5262B 51V0
C13
D14 0W5
SPST Switch
S7
1/4W
2K2
63V 100U
10 10
1M
11 11
12 12
F1
T2A
13 13
IEC_RECT
W11
14 14
15 15
16 16
17 17
"STYLE_P32"
A
3682
IRF830
TO-220
DSG
B
YELLOW
BLACK
3682
W9
C54
W1
1N 400V
C80
15A
M
C44
63V 10U
3682
W8
22N 275V
C53
W10
3682
4N7 250V
MJE340
TO-126
W2
500K
P1:A
E
YELLOW
DRIVE
4007
D11
Transformer
1
BLK
T2
1324
BLK
CB
C
W3
BLACK
W4
36K
C
K2:A
116Vdc
0.8Vdc
R75
1/4W
3682
W27
3Vac
MPSA06
BC
E
TO-92
V1:B
36K
RED
RED
GRY
YEL
GRY
GRN
GRN
D
+158Vdc
R4
1/4W
47K
+1.2Vdc
R2
1M
1/4W
.
R6
249K
1/4W
1N 400V
C81
C17
2N2 400V
PRE-AMP
12AX7A
R7
1K5
1/4W
C26
330N 63V
C52
100N250V
1/4W
R113
3682
W26
3
3682
W28
4
3682
W13
5
3682
W12
6
72
W16
3682
8
3Vac
FLMP
R96
R95
1/8W
1/8W
100R0
100R0
BE
C
TO-92
D
W20
FLMP
RED
R1
1/4W 113K
R3
1/4W
+249Vdc
R8
R10
4007
4007
12AX7A
V3:C
{Body}
+249Vdc
PRE-AMP
12AX7A
V1:A
2X_TRIODE_HCT
{Body}
1K5
C18
1N5 200V
1/4W 120K
1/4W 120K
+33Vdc
D3
D4
4007
D5
4007
D6
{Voltage}
Val
E
C16
47N 250V
63V1U
C1
63V470U
C38
V5:B
E
F
C33
1N 400V
47K
R15
1/4W
C23
47N 100V
R5
MINI
C22
1/4W
220K
47N 100V
PRE-AMP
12AX7A
R114
1/4W
100K
R9
1/4W 120K
1N 50V
C31
10K
6467
R53
Q1
+24Vdc
7824
OUTIN
GND
6731
TO220
25V100U
C5
C57
100N 100V
V4:B
F
P8:A
159Vdc
V2:A
63V
C27
470N
R63
NTC
.
2K7
1/4W
2X_TRIODE_HCT
K2:B
V1:C
M
M
M
R11
1/4W 113K
R12
Q9
BC550C
100K
1B
TREBLE
500K
15A
P7:A
BASS
20K
15A
P6:A
MID
1.2Vdc
1K5
1/4W
TO92
5101
D7
4007
D8
4007
4007
D9
4007
D10
C82
G
470P 1000V
C19
100N 250V
D24 0W5
G
M
CLEAN VOLUME
+249Vdc
1N5250B 20V0
450V82U
C55
V2:C
2X_TRIODE_HCT
C34
4N7 250V
R56
1/4W
47K
C35
220P 100V
500K
15A
P9:A
1
2
U3:A
2.0W
R110
R13
220K
C37
C32
470P 100V
.
33K
1/4W
C20
47N 100V
C21
47N 100V
6880
6880
4N35
4N35
10MM
H
1N5 50V
R54
YEL
6399
RED
6398
6
5
4
U3:B
H
I
R58
1/4W
220K
.
R57
1/4W
220K
.
R21
1/4W
100K
BRIGHT
DOWN UP
DOWN UP
S6:B
S6:A
100K
1B
R14
1/4W
100K
P2:A
RAD
M
TREBLE
500K
15A
P3:A
M
BASS
C83
20K
15A
P4:A
M
MID
R33
1/4W
Mini
1K
1.0W
STANDBY
S3:B
LD1
LD2
R52
1/4W
2K2
D12
4007
R81
2M2
1/4W
250V
C28
220N
250V220N
C84
R93
5.0W
1K
450V10U
C39
I
J
+249Vdc
R18
1/4W 113K
+162Vdc
+1.2Vdc
1M
1K5
R16
R17
1/4W
1/4W
500K
15A
4N7 250V
47K
5101
TO92
RAD
S3:A
DOWN UP
4148
4148
R98
1/4W.330K
R50
1/4W.330K
Q12
BC550C
+400Vdc
C40
M
D15
D23
R94
8K2
1/2W
450V10U
P5:A
MASTER
R55
1/4W
1/4W 470K
R103
R102
1/4W
470R
R106
1/4W
100K
R24
1/4W
47K
4K7
R65
1N5240BRL
R101
1/4W
2K2
R94B
8K2
1/2W
450V10U
C60
J
C24
22N 400V
V2:B
PRE-AMP
12AX7A
C15
C7
50V 22U
4148
47K
1/4W
G
10V0
D130W5
W21
3682
50V22U
D16
D17
D
S
R100
1N5262B
0W5
1N5262B
0W5
1N5262B
0W5
1N5262B
0W5
1N5262B
0W5
R64
1/4W
47K
4148
R97
1/4W
10K
R66
1/4W
47R
+415Vdc
IRF830Q8
.
3R9
2.0W
K
R112
1/4W
R19
1/4W 470K
2.0W
R104
+410Vdc
Q10
MJE340
D22
51V0
D21
51V0
D20
51V0
D19
51V0
D18
51V0
K
27K
150K
K1:B
8
V+
V-
4
10MM
3682
L
C71
470P 100V
R22
1/4W
100K
R20
1/4W 100K
U2:B
U2:C
NE5532N
R67
1/4W
10K
REVERB SEND
C64
4N7 250V
16V
C8
100U
18K
R70
1/4W
200V 2N2
R68
1/4W 120K
C11
100N 100V
50V22U
R69
1/4W 120K
C10
RED
W19
C63
47P 100V
+249Vdc
450V10U
C41
L
R23
1/4W
100K
J8
C75
100U16V
C9
1/4W
R119
8
V+
U1:C
V-
4
1/4W
D1
REVERB RTN
18K
U1:B
NE5532N
R72
1M
R79
1/4W
47K
-37Vdc
M
4148
M
R88
Q2
MPSA06
5103
TO92
50V 22U
N
Mini
1K
1.0W
Q11
MPSA06
5103
TO92
D2
4148
Q3
MPSA06
TO92
5103
10K
R25
1/4W
Q7
BC550C
TO92
2K2
R34
1/4W
5101
20K
15A
M
P10:A
MASTER VOLUME
20K
15A
J7
M
P11:A
REVERB
10K
R71
1/4W
C12
10K
{T}
4520
P12
M
BIAS
.
16K
R78
1/4W
Q4
MPSA56
5104
TO92
C29
220N 63V
50V22U
27K
R76
1/4W
C61
N
O
K2:C
C46
1N 50V
K1:C
63V2U2
C69
10K
R28
1/4W
5908
GRN
Q6
R111
1/4W
BC550C
1K
50V22U
TO92
5101
C70
R26
R83
47R
R82
1/4W
R32
1/4W
10K
2K2
R27
RED
5906
1/4W
C36
2N2 400V
R51
1/4W
470K
PRE-AMP
C47
10N 100V
1M
R45
1/4W
R48
1/4W
10K
1M
PRE-AMP
R46
1/4W
C48
100N 100V
C51
82N 100V
4K7
1K5
R49
R35
1/4W
1/4W
NA: BIAS 350 mV ACROSS R91
AND 350mV ACROSS R92
CE: BIAS 300 mV ACROSS R91
AND 300mV ACROSS R92
R80
1/4W
47K
Q5
MPSA56
5104
TO92
C30
220N 63V
-38Vdc
50V22U
27K
R77
1/4W
C62
O
4K7
1/4W
1/2W
1/4W
12AX7A
+28Vdc
R47
1/4W
470R
12AX7A
P
R99
2K
R29
1/2W
LD5
CHNL2
C45
100N
50V
47R
R85
1/4W
R31
1/4W
10K
2K2
R30
1/4W
2K
100R
LD4
BOOST
+170Vdc
V3:A
R43
R44
V3:B
+168Vdc
P
5907
BOOST
DOWN UP
R62
1/4W
270K
C49
22N 400V
82K
1/4W
1/4W 100K
C50
22N 400V
R84
YEL
S4:A
+249V
1/4W
100R
LD3
CHNL1
DOWN UP
3700_DRW
S4:B
R41
1/4W
R42
1/4W
Q
CHANNEL
R87
1/4W
820R
MINI
220K
-37Vdc
-38Vdc
MINI
220K
R86
1/4W
820R
Q
R
S5:A
S5:B
DOWN UP
DOWN UP
C3
50V22U
1K
1/4W
R105
Val
V4:A
-36 to
-38Vdc
R91
R92
-36 to
-38Vdc
V5:A
Val
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
R
10R
1.0W
FLMP
10R
1.0W
FLMP
OUTPUT
DATE VER# DESCRIPTION OF CHANGE#
OCT-15-2004
.
.
.
DEC-02-2004
MAR-04-2005
APR-26-2005
.
MAY-27-2005
.
.
.
.
NOV-25-2005
DEC-14-2005
.
.
.
MAY-17-2006
.
.
D
D
D
D
S
R36
1/4W 100K
C68
100N 100V
50V22U
C4
NE5532N
3682
W17
R89
1.0W
220R
FLMP
R90
1.0W
220R
FLMP
3682
W18
YCV50
1.00
2.00
.
.
.
.
2.10
2.20
.
3.00
.
.
.
.
.
3.01
4.00
.
.
.
.
.
V
V
V
V
S
T
Gold
U2:A
50V 22U
C2
NE5532N
R109
1/4W
100K
C66
220P 100V
R37
1/4W 100K
C67
U1:A
R40
1/4W
27K
C65
470P 100V
C25
100N 100V
470N 63V
C6
50V 22U
R38
1/4W 100K
MINI
10K
R59
1/4W
R39
1/4W 100K
C14
OUTPUT XFMR
5
BLU
RED
1324M
3
BRN
4
T1
GRN
BLK
-
2
3682
W15
1
-
M613 REVISION HISTORY
GT:DERIVED FROM M581 V11.00SEPT-23-2004
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)
GT:PC#6776 MOVED TOP MULTIPLE TO ADD ZIPPER
GT:PC#6836:R78 27K #4833 --> 18K7 #5021 for bias
GT:PC#6865:STDBY FIX, ADDED #4599 x 3 AND #5299 x 1
GT:PC#6889: X61 #4599 --> 1K #4823 RESISTOR
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
PC#7041:GT:UPDATED BIAS NOTE FOR R91&R92
PC#7053:GT:R53 4850 3K9->4864 2K7, NEW BIAS FOR CE
BALVINDER CORRECTED TESTNODE PADS
SPACED W8 TRACE 6MM FROM SCREW HOLE
UPDATED K1,K2 FOR CLINCH
PC#7125:GT:CHANGE #3914 RCA JACK TO #6541.
PC#7091:ENLARGE HOLE SIZE FOR #3522 KINK LEADS (S3
TO S6)
N
N
N
N
Product
Product
YCV50
Date:
Mon Sep 11, 2006
Date:
Mon Sep 11, 2006
Filename:
Filename:
YCV50
PCB# ofSheet
PCB# ofSheet
M613-4V00sch.sch2002
M613-4V00sch.sch2002
T
U
R60
1/4W
620R
50V22U
--
--
M613TUBE GUITAR AMP
M613TUBE GUITAR AMP
U
Gold .
ST R
-
PRE-AMP-OUT
R108
1/4W
10K
Gold
OUTPUT
ST R
J5
3682
EXTENSION
ST R
J6
Rev:214V00
Rev:214V00
V
FOOTSWITCH
J2
R61
1/4W
620R
ST R
J4
--
ST R
..
PWR-AMP-IN
J3
R107
1/4W
10K
W14
V
50V22U
C56
ORIGI
N
MULTIPLE
DON'T MOVE
CLINCH
ORIGIN
SHEAR
P1
INPUT
J1
3921
TIP
TIP-SW
W2
TO W3
YELLOW
500K
4425
DRIVE
BlankSize - 18600x12800
5908
M613
22N
R106
R
400V
PRE-AMP
W23
100K
T
V
4V00
V2
YCV50
TREBLE
100K
X21
12AX7A
X60
R73
D14
R74
T
R
8K28K2
1/2W
1/2W
R94B
1/4
1B
P8
C15
1K5
X51
51V0
V
63V
100U
C13
R94
R104
RED
TO W20
2.0W
150K
W25
X23
X22
220P
3522
C35
50V
22U
113K
X24
3674
X25
X34
1M 100N
2K2
C40
10U
450V
C41
T
R
V
10U
450V
BRIGHT
NOL
NOR
WHT
CL CR
NCL
NCR
S6
R18
R17
W34
R113
36K
36K
4007
C44
T
R
V
10U
R
450V
C39
M613
X53
500K
4425
R43
C49
82K
R44
22N
400V
100K
22N
400V
C50
C48
5865
R75
D11
D7
10U
63V
D8
220K
R110
2.0W
T
V
82U
450V
T
R
V
C55
4V00Pcb Mech
C4
15A
P7
X54
1M
R46
100N
C52
4007
4007
4007
T
R
V
5907
LD3
LD4
+
-
RED
BOOST
4148
D1
R19
15A
RELAY 2C
C80
NC NOC
470K
X2
1N
BOOST
NOR
WHT
3522
NCR
S4
RING-SW
RING
SLEEV
E
W37GREEN
W1
TO W4
BLACK
XFMR
BLUE
W17
NOL
CL CR
NCL
X5
EL34EH
OUTPUT
R33
K2
47K
P5
500K
X4
4425
220K
R2
R3X3R4
R5
1U
1M
1K5
47K
63V
C16
C1
YELLOW
W3
TO W2
BLACK
W4
TO W1
BROWN
W18
XFMR
W19
RED
SHORT AXIS
INSERT
VCD
ORIGIN
+
CHNL1
-
YEL
R22
R20
RELAY 2C
100K
PRE-AMP
NC NOC
12AX7A
3984
220R
Val
27K
100K
R112
K1
TREBLE
100K
4424
C71
470P
100K
R14
P2
R13
33K
3732
113K
R1
V1
EL34EH
OUTPUT
R93
R89
T
R
V
W35
Val
X47
3984
1.0W
1K
5.0W
W39
T
R
V
100R0
100R0
R96
R95
SHEAR
C83
R24
R23
4N7
15A
X7
47K
100K
X6
5841
47N
1K5
330N
C26
R7
X48
V4
LONG AXIS
R83
D2
100R
X8
4148
R25
C46
1B
C20
C21
1N
10K
47N
47N
C69
C32
470P
2U2
63V
BC550C
MPSA06
Q2
2K2
C19
R34
5865
100N
113K
R11
V5
100R
R84
C45
100N
R85
2K
1/2W
X9
P3
R26
500K
15A
4425 4424
2K
1/2W
X10
X11
X1
Q7
ETCH
GUIDE
C70
MPSA06
Q11
C82
2K2
10K
47R
R6
470P
249K
1N
R27
R32
R82
C81
R86
R87
R42
R91
R90
X45
220K
820R
820R
10R
1.0W
1.0W
220R
50V
22U
47K
220N
10R
1.0W
X46
X59
C30
R80
R92
250V
C28
220N
5882
250V
5882
220N
C84
47R
X12
R88
R29
R28
R31
R30
1K
1.0W
10K
X13
2K24148
10K
BC550C
MPSA06
22U
50V
RED
TO W25
R77
27K
X44
C62
330K
R50
Q6
Q3
1K
R111
R9
W20
R8
120K
120K
C18C17
1N52N2
R76
R41
R78
R79
P12
27K
220K
47K
16K
10K
50V
BIAS
C29
22U
R
1
C61
R
0
9
3
8
R101
220N
MPSA56
MPSA56
Q4Q5
2K2
330K
470K
4148
D23
D15
Q12
BC550C
R15
X19
47K
C22
C33
C23
X20
1N
CLEAN VOLUME
47N
X18
20K
15A
X17
4423
MID BASS
C31
1N
470R
R102
C34
P4
4N7
R56
WHT
47K
CHANNEL
S5
R10
X14
120K
XC163
Z352
6730 6731
IRF830
R100
100U
Q8
25V
C5
3R9
4007
6880
10V0
4N35
U3
D12
2M2
R81
D13
500K
4425
C57
100N
NOL
NOR
X61
3522
R57
R58
R16
CL CR
NCL
NCR
1M
1K5
X49
220K 47N
220K
X16
1N5
R12
C37
X15
7824
10K
TO220
R63
Q9
Q1
2.0W
BC550C
X43
X40
2K7
20V0
D24
R53
LD5
+
R99
-
4K7
15A
100K
R21
R52
2K2
GRN
CHNL2
X52
X65
P9
C27
470N
100K
R114
D21
51V0
51V0
C24
X50
3732
3674
GREEN
X36
X37
X58
X35
W24
TO W7
C60
D19
D20
10U
D18
450V
X38
X41
51V0
MJE340
51V0
51V0
Q10
D22
W21
METAL BACK
C67
22U
50V
SPLITTER
4007
470N
RED
D9
D10
C68
X56
100K
100K
100K
R36
R37
R109
12AX7A
3732
GREEN
W26
W28
M613 YCV50
RED
4V00
W29
BLACK
TO W6
T
470U
R
V
63V
C38
Top Assy
100N
V3
W27
R66
C66
U2
220P
NE5532N
47K
R65
20K
15A
4423
MIDMASTER
R45
R47
R48
1M
X55
10K
470R
2N2
C36
W16
T
R
22N
V
275V
2/4
4007
4007
4007
4007
D16
D17
4148
4148
22U
50V
P6
R62
X30
X31
270K
X33
X32
GREEN
6435
C53
D6
D4
D3
D5
M613
R64
47K
C7
C56
47R
C8
100U
16V
22U
50V
R61
R49
C51
4K7
620R
470K
C54
4N7 250V
R
6451
SHEAR
R67
R97
10K
10K
82N
C47
W5
W9
W10
T
V
W11
W12
W13
C64
C9
4N7
22U
50V
R35
1K
X28
1K5
R105
10N
R51
BLACK
W8
LINE
NEUTRAL
WHITE
GREY
4V00
BlankSize - 18600x12800
R39
R38
R40
R72
R68
R71
U1
C65
100U
16V
470P
C3
MASTER VOLUME
20K
4423
X29
P10
G2
RCA
REVERB SEND
3674
+24V
X26
100K
100K
15A
22U
50V
C25
SIG
G3
FOOTSWITCH
OUTPUT XFMR
BLACK
GREEN
OUTPUT
27K
NE5532N
C11
R59
C10
100N
10K
C6
R70
18K
18K
22U
100N
50V
X63
J7
G2
G1
J8
6541
REVERB RTN
.
7 7
Gold
Gold
J2
22U
C2
50V
BLACK
W14
TO W29
GREEN
W15
TO W24
1M
10K
120K
R69
22U
50V
X27
120K
2N2
R119
C75
X64
SIG
G1
G3
6541
RCA
X57
3674
PWR-AMP-IN
W30
W6
W7
C12
22U
50V
47P
C63
20K
15A
4423
P11
REVERBBASS
X39
R55
.
.
Gold
J3
M613 YCV50
4V00
-
7
-
-
StepAndRepeat - X1@0.000Y2@6.400
LD1
STANDBY
YEL
R54
STANDBY
NOR
1.0W
NCR
S3
PRE-AMP-OUT
4/4
4V00
6399
X62
LD2C14
RED
ON
6398
WHT
NOL
CL CR
NCL
3522
-
7
-
-
J4
R107
R108
W36
-
OUTPUT
7
-
M613
-
SHEAR
J5
X42
1K
4K7
R60
620R
10K
10K
3/4
EXTENSION
J6
SEE LAYOUT DOCUMENTATION
MODEL(S):-
# VER#DATE
1
SEPT-23-2004 1.00 GT:DERIVED FROM M581 V11.00
2
OCT-15-2004 2.00 GT: PC#6748 R101 -> 2K2 (4847), R55 -> 4K7 (4827), D24 ->
3
4
5
6
DEC-02-2004 . GT:PC#6776 MOVED TOP MULTIPLE TO ADD ZIPPER
7
MAR-04-2005 2.10 GT:PC#6836:R78 27K #4833 --> 18K7 #5021 for bias
8
9
..
10
11
. . AH: Moved some parts, Autoinsert needs more space
12
..
13
. . PC#6965, MOVE ARC TRACE AWAY FROM TUBES
1
. . PC#6967, INCREASE CLEARANCS NEAR OUTPUT TUBES
2
NOV-25-2005 PC#7041:GT:UPDATED BIAS NOTE FOR R91&R92
3
DEC-14-2005
4
.
5
.
6
..
7
MAY-17-2006
8
. PC#7091:ENLARGE HOLE SIZE FOR #3522 KINK LEADS (S3
9
10
D
11
DVN
12
D
13
D
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
8
D
9
D
10
D
11
D
12
D
13
M613 REVISION HISTORY
YCV50
DESCRIPTION OF CHANGE
20V0 (6465), ADD R104: 150K/2W (4790)..
. Increased route cutaway on preamp board.
.. R53->3K9 (4850), R62->270K (4879), C19->100N (5865)
GT:PC#6865:STDBY FIX, ADDED #4599 x 3 AND #5299 x 12.20APR-26-2005
GT:PC#6889: X61 #4599 --> 1K #4823 RESISTOR
3.00MAY-27-2005 GT:PC#6886:ADD #4520 TRIMPOT 10K, R78->#4876 16R
PC#6937, MODIFY TUBE SOCKET ROUTING AND DRILLING
.
PC#7053:GT:R53 4850 3K9->4864 2K7, NEW BIAS FOR CE3.01
BALVINDER CORRECTED TESTNODE PADS4.00
SPACED W8 TRACE 6MM FROM SCREW HOLE
.
UPDATED K1,K2 FOR CLINCH
. PC#7125:GT:CHANGE #3914 RCA JACK TO #6541.
.
TO S6)..
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
SEE LAYOUT DIAGRAM
MODEL(S):-
#
DATE
1
D
2
D
3
D
4
D
5
D
6
D
MODEL(S):-
#
PC#
1
PC
2
PC
3
PC
4
PC
5
PC
6
PC
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
MODEL(S):-
DRIVE
P1
TREBLE
P2
BASS
P3
MID
P4
MASTER
P5
MID
P6
BASS
P7
TREBLE
P8
CLEAN VOLUME
P9
MASTER VOLUME 23/04
P10
REVERB
P11
.
.
M581 DRILL HISTORY
YCV50
VER# DESCRIPTION OF CHANGE
V
N
N
V
N
V
N
VVN
V
N
M581 PENDING CHANGES
YCV50
PENDING CHANGE
X
X
X
X
X
X
M613 POT LIST
YCV50 TUBE AMP
KNOBPART#FUNCTIONREF
AS OF
11/00
#8430
#4425
#4424
#4425
#4423
#4425
#4423
#4425
#4424
#4425
#4423
#4424
.
11/00
#8430
11/00
#8430
11/00
#8430
11/00
#8430
11/00
#8430
11/00
#8430
11/00
#8430
11/00
#8430
#8430
11/00
#8430
.
.
"STYLE_P32"
PRODUCTION NOTES
1. RTV MUST BE ADDED TO THE FOLLOWING CAPS
C1,C16,C19,C17,C70 BETWEEN C84,C28,C60,C15
BETWEEN C49,C50, ADDED TO C15,C7,C8,C3,C9
C56,C14,C6,C10,C4,C2 AND C12
2. C53 IS 22N FOR BOTH NORTH AMERICA AND CE
3. C3,C7,C6 MUST BE LOW PROFILE PT#5631
4. C8,C9 MUST BE LOW PROFILE PT#5879
3796 on this
device only.
Z352
5. R63 #6467: APPLY THERMAL
COMPOUND GENEROUSLY
BETWEEN PART AND HEATSINK
6. NA: BIAS 350mV ACROSS R91
AND 350mV ACROSS R92
CE: BIAS 300mV ACROSS R91
AND 300mV ACROSS R92
LEAD/PIN REFERENCE
IRF830
MJE340
GSD
EBC
TO-220
TO-126
MPSA56
MPSA06
ECB
TO-92
BC550C
CEB
TO-92
G2
P
3
2
H
4N35 NE5532N
G1
4
5
1
8
4H6
2K
NC
6
3
7
2
H
2G
1 9
K
Lots of goop
on the thermistor.
COM1 COM2
NC1
NC2
NO1
NO2
3700_DRW
H
1P
5
1G
7
8
1K
2 of 8701
2 of 3850
2 of 8829
- to hold z352 in place
PCB
2 of 8741
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:
132 4E
wiring-YCV50-CE-AC
GR A Y
GR AY
WH ITE
BL UE
NE UTR AL
BR OW N
BL AC K
GR E E N
GR E E N
SU PP L Y
GR AY
WHI TE
BLA CK
R E D
R E D
+24V
INP U T
JB 1
EY E8
TO _EY 8
TO _EY 7
EY E7
BLAC K
YE L LOW
GR EE N
ME TA L_ BA CK
TO E YE 9
GR AY
WC 8
TO E Y4
F
EY E5
BL K
WC 7
WC 2
WC 4
LIV E
WC 1
WC 3
GR N
WC 6
RE D
WC 10
C53
250V AC
680N
WC 9
WC 5
GR N
Gr n/Y el wire
solde red to grou nd lug
JB 5
F
EY 9
C41
EY E6
F
GR E E N
#3638
TO E YE6
RE D
RE D
GR N
F
JB 6
OUTP UT
EX TE NSIO N
BL K
TO EY 5
EY 2
EY 4
TO OUTP UT
TRA NSFO RMER
WC 14
WC 15
TO OUTP UT
F
TRA NSFO RMER
BL K
WC 11
RE D
OUT PUT-TUBE
6L6B
V4
OUT PUT-TUBE
RE D
RE D
6L6B
BL AC K
BR OWN
WC 13
WC 12
BLU E
GR EE N
R E D
BR OWN
BL UE
Y C V 5 0C E
E X POR T AC
WIR ING
April 14/05
By G.K
132 4M
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