SERVICE MANUAL YCV20 - Series 2

SERVICE MANUAL
YCV20 - Series 2
TYPE: YS1006
WEB ACCESS: http://www.yorkville.com
WORLD HEADQUARTERS
CANADA
Traynor Custom Valve 20
U.S.A.
Yorkville Sound
Yorkville Sound Inc.
550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA
4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA
Voice: (905) 837-8481
Fax: (905) 837-8746
Voice: (716) 297-2920
Fax: (716) 297-3689
Quality and Innovation Since 1963
Printed in Canada
Manual-Service-ycv20-Series-II-00-1v9.pdf
IMPORTANT SAFETY INSTRUCTIONS
INSTRUCTIONS PERTAINING TO A
RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS
INSTRUCTIONS RELATIVES AU RISQUE
DE FEU, CHOC ÉLECTRIQUE, OU
BLESSURES AUX PERSONNES
CAUTION:
AVIS:
AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE,
N’ENLEVEZ PAS LE COUVERT (OU LE PANNEAU ARRIERE)
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
NE CONTIENT AUCUNE PIECE
REPARABLE PAR L’UTILISATEUR.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
CONSULTEZ UN TECHNICIEN QUALIFIE
POUR L’ENTRETIENT
Read Instructions
Veuillez Lire le Manuel
Packaging
Emballage
Warning
Attention:
The Owner’s Manualshould be read and understood
before operation of your unit. Please, save these instructions for future reference.
Keep the box and packaging materials, in case the unit
needs to be returned for service.
Conservez la boite au cas ou l’appareil devait être
retourner pour réparation.
When using electric products, basic precautions should
always be followed, including the following:
Lors de l’utilisation de produits électrique, assurezvous d’adhérer à des précautions de bases incluant
celle qui suivent:
Power Sources
Your unit should be connected to a power source only of the voltage
specified in the owners manual or as marked on the unit. This unit has a
polarized plug. Do not use with an extension cord or receptacle unless
the plug can be fully inserted. Precautions should be taken so that the
grounding scheme on the unit is not defeated.
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.
The unit should be serviced only by qualified service personnel.
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.
Assurez que lappareil est fourni de la propre ventilation.
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
Alimentation
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.
Ensure that proper ventilation is provided around the appliance.
Power Cord
Il contient des informations qui devraient êtres comprises
avant l’opération de votre appareil. Conservez S.V.P. ces
instructions pour consultations ultérieures.
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-4v3.eps • Oct. 26/05
#
Part#
Description
Labeled Components
1
8260
TRAYNOR LOGO
2
7079
12" 8R 50WPGM SPEAKER CELESTIO
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
7
3428
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
Series 2 (incl. WR version)
1
2
3
4
5
17
3438
230 AC RECEPTACLE FUSE & 250 T
18
3698
SPST ROKR SW QUIK 180" AC PWR B
19
3450 & 3450NUT
20
3436/8661
21
3923
22
7025A OR 7025B
23
6BQ5
24
7078
(WINE) 12" 8R 25WPGM SPEAKER CELESTION
25
3552
NYLON SPRING CLAMP
6
7
TRAYNOR DUAL FOOTSWCH 10' CORD
AC LINE CORD - #3474(EURO)
8/9
1/4" ALL GOLD PC MNT JK SKT
DPDT PUSH SW B4 MAKE/BUTTON KNOB GREY
XLR MALE PCB MT HORZ MTHOLE-V SNAP
12AX7 DUAL TRIODE PREAMP TUBE
6BQ5 PENTODE OUTPUT TUBE
22/23
11
10
24
TUBES
Wine Red Version Speaker
12
13
17
15
14
18
19
20
16
21
*NOTE: Replacement grilles are 'Special-Order' and are only available while the model is in production.
‡ Grilles & support replacements are for CURRENT models only
Parts-Serv-YCV20-Series2-1v0.xls
ftp.yorkville.com
Speaker Enclosure
TYPE: YS1006
B l o c k D i a g r a m f o r YCV20 II
DESIGNED AND MANUFACTURED BY YORKVILLE SOUND
EQ
Bright
Ch 2
Gain
Mono
1/4-inch
Treble/Bass/Mid
Preamp
V1:A
Ch 2
Volume
Preamp
V2:B
0 dB
Channel
Select
Input
Pre-Amp
Out
Channel
Select
Ch 1
Volume
Boost
Preamp
V1:B
Preamp
V2:A
Ch 1
Gain
Amp In
D.I. Out
+
Accutronics ©
Send
Rtn
4EBC1B
Grn
Power
Amp
Reverb
Splitter
V3:A
V4:A
V5:A
+
-
Blk
Headphones
PREAMP
12AX7
V2
POWER
6BQ5
Channel Select
Boost
V4
12AX7
SPLITTER
12AX7
V3
V1
External
Speaker Out
100R
5W
12-inch
Speaker
YS#7079
8-ohms
-
POWER
6BQ5
V5
DISCONNECT POWER WHEN
REPLACING TUBES
DÉBRANCHÉ L’APPAREIL AVANT
DE REMPLACER LES LAMPES
Internal
Spkr Defeat
+
Footswitch
BLOCK-DIAG-ycv20-Series-II-1v30.ai
YCV20 - Series 2
YS No.
6397
5906
6398
6399
5907
5908
6825
6438
6461
6475
6871
6872
5102
5103
5104
6730
6882
5199
5197
5201
5206
5208
5275
5209
6451
5272
5204
5834
5210
5840
6435
5306
5224
5226
5212
5314
5865
5882
5233
5629
5631
5958
5618
TFS-2B
4423
4424
4425
713
3976
8461
8521
3478
3489
3494
3601
3682
3498
3528
3921
3890
3914
3923
3451
2471
8456
8604
8889
3438
3552
3810
8430
8504
8633
8661
3428
8260
8910
8900
3674
8800
8890
3796
3850
4597
4599
2037
4896
Description
JEWELED PILOT LAMP AMBER REG V1
RED 3MM LED 1V9 20MA .4SPCER T&R
RED 5MM LED 1V5 20MA HIGH EFF
YEL 5MM LED 1V5 20MA HIGH EFF
YEL 3MM LED 1V9 20MA .4SPCER T&R
GRN 3MM LED 1V9 20MA .4SPCER T&R
1N4148 75V 0A45 DIODE
T&R
1N4007 400V 1A0 DIODE
T&R
1N5240BRL 10V0 0W5 ZENER 5% T&R
1N5262B 51V0 0W5 ZENER 5% T&R
MC7915CT TO220 N 15V0 REG V2
MC7815CT TO220 P 15V0 REG V1
BC560C TO92 PNP TRANSISTOR T&R TB
MPSA06 TO92 NPN TRANSISTOR T&R TA
MPSA56
TO92 PNP TRAN T&R TA
IRF830
TO220 NCH MFET
TN
TL072CP IC FET DUAL OP AMP
100P 100V 2%CAP T&R RAD CER.2"NPO
220P 100V 2%CAP T&R RAD CER.2"NPO
470P 100V 5%CAP T&R RAD CER.2"NPO
__1N 400V 5%CAP T&R RAD .2"FLM
__2N2 400V 5%CAP T&R RAD .2"FLM
__3N3 100V 5%CAP T&R RAD .2"FLM
__4N7 250V 5%CAP T&R RAD .2"FLM
__4N7 250V 20%CAP BLK 'Y' 10MM AC
__6N8 100V 5%CAP T&R RAD .2"FLM
_10N 100V 10%CAP T&R RAD .2"FLM
_10N 250V 20%CAP BLK RAD POLY FLM
_22N 100V 10%CAP T&R RAD .2"FLM
_22N 400V 10%CAP BLK RAD POLY FLM
_22N 275V 20%CAP BLK 'X2' 15MM AC
_33N 50V 10%CAP T&R BEAD
X7R
_47N 100V 10%CAP T&R RAD .2"FLM
_68N 100V 5%CAP T&R RAD .2"FLM
100N 63V 5%CAP T&R RAD .2"FLM
100N 50V 10%CAP T&R BEAD
X7R
100N 250V 10%CAP BLK RAD POLY FLM
220N 250V 10%CAP BLK RAD POLY FLM
330N 63V 5%CAP T&R RAD .2"FLM
_10U 160V 20%CAP BLK 10X13MM EL
_22U 50V 20%CAP T&R 6X7MM .2"EL
_22U 350V 20%CAP BLK 13X25 EL
470U 25V 20%CAP BLK 10X15MM EL
TRAYNOR DUAL FOOTSWCH 10' CORD-BULK
_20K 15AAUDIO 9MM
P32
100K 1B LIN 9MM
P32
500K 15AAUDIO 9MM
P32
25 X 20 X 50 2 MIL PLASTIC BAG
SNAP ON 0.843" INSULATING BUSHING
TRIM CLIP (PLATED BLK ZINC)
RUBBER BUMPER WITH WASHER VERYSMALL
CLIP 205/187X032 18-22AWG DISCO/INS
CLIP 250X032 18-22AWG DISCO/INSL
CLIP 205/187X020 14-16AWG DISCO/INS
RING TERMINAL 16AWG WIRE & #8 SCREW
250 MALE PCB TAB REEL
1/4" JCK PCB MT HORZ
1/4" JCK PCB MT HORZ GOLD TR_
1/4" JCK PCB MT VERT STER RT SWT
36"90'RCA DUAL RED-WHITE PREFAB CBL
RCA SNGL PCB MT HORZ
XLR MALE PCB MT HORZ MTHOLE-V SNAP
EYELET SMALL 0.089 OD PLATED
T1A
5X20MM FUSE
10.0" STRAP HANDLE, NICKEL COVERS
10-32 T NUT
RUBBER GROMMET #2183-034-BLK
IEC PWR SOC W/.205TAB &FUSE 10A250V
NYLON SPRING CLAMP
4" NYLON CABLE TIE
YCV40 CHICKEN-BEAK KNOB
CORNER, 2 LEGS NOTCED LIP NICKEL
ROUND PUSH BUTTON 1/4" BLACK
BUTTON KNOB FLAT GREY
8' 3/18 SJT AC LINE CORD REMOVABLE
YCV40 LOGO EMBOSSED ALUMINUM
YORKVILLE PRODUCT MANUAL
YORKVILLE WARRANTY CARD 2-YR UNLTD.
9 CIR CABLE HOLDER .098
6-32 KEPS NUT ZINC
1/4-20 CAGE NUT C79-88142027
ELASTOMER PAD TSIL 1.0X0.8
TO-220 PLASTIC TRANSISTOR INSULATOR
22AWG STRAN TC WIR
JMP
22AWG SOLID SC WIR
T&R JMP
1/4W 10R FUSIBLE
T&R RES
1/4W 15R 5%
T&R RES
Qty.
1
1
1
1
1
1
6
9
1
3
1
1
2
3
1
1
2
1
3
3
2
4
1
2
1
1
1
1
1
2
1
1
2
1
10
3
1
1
2
1
9
6
4
1
1
2
5
1
2
4
4
5
2
2
2
16
2
3
1
1
2
1
13
1
1
6
7
1
2
6
8
8
4
1
1
1
1
1
4
5
4
3
3
2
55
2
1
YS No.
4612
4817
4912
2044
4692
4852
2022
4857
4713
4821
4980
4799
4891
4673
4822
4623
4913
4791
4647
4847
2035
4827
4982
4828
4800
4829
5031
4831
4840
4834
4848
4837
4838
4776
4841
4843
4880
4844
3610
3696
3700
3537
8865
8832
8801
8829
8837
8757
8824
8722
8809
8750
8756
8843
8786
8862
8770
8905
3741
3865
3858
7079
8482
8488
8491
8820
8817
3436
3522
3698
3732
3983
Description
1/2W 18R 5%
T&R RES
1/4W 47R 5%
T&R RES
1/4W 75R 5%
T&R RES
1/4W 101R0 FUSIBLE
T&R RES
5.0W 100R 5%
BLK RES
1/4W 100R 5%
T&R RES
1.0W 220R 5%FLAME PROOF T&R RES
1/4W 220R 5%
T&R RES
1.0W 470R 5%
T&R RES
1/4W 470R 5%
T&R RES
1/4W 470R 5%MINI
T&R RES
1/4W 562R 1%
T&R RES
1/4W 620R 5%
T&R RES
1/2W 680R 5%
T&R RES
1/4W 820R 5%
T&R RES
1/2W 1K 5%
T&R RES
1.0W 1K 5%
T&R RES
1/4W 1K54 1%
T&T RES
1/2W 2K2 5%
T&R RES
1/4W 2K2 5%
T&R RES
1/4W 2K21 1%FLAME PROOF T&R RES
1/4W 4K7 5%
T&R RES
1/4W 4K7 5%MINI
T&R RES
1/4W 6K8 5%
T&R RES
1/4W 10K0 1%
T&R RES
1/4W 10K 5%
T&R RES
1.0W 10K0 5%
T&R
1/4W 18K 5%
T&R RES
1/4W 33K 5%
T&R RES
1/4W 47K 5%
T&R RES
1/4W 62K 5%
T&R RES
1/4W 82K 5%
T&R RES
1/4W 100K 5%
T&R RES
1/4W 113K 1%
T&R RES
1/4W 220K 5%
T&R RES
1/4W 470K 5%
T&R RES
1/4W 680K 5%
T&R RES
1/4W 1M 5%
T&R RES
10" 9C-26AWG RIB 3/4" NOTCH 0.1"
RELAY 1C 02AMP DC24 006MA PC-S
RELAY 2C 01AMP DC24 015MA PC-S
ACC# 4EB3C1B LONG REVERB
4-40 X 5/16 PAN PH MS JS500
6-32 X 1/4 PAN PH TAPTITE JS500
6-32 X 3/8 PAN PH TAPTITE JS500
6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA
6-32 X 1/2 ROUND PH MS JS500
#6 X 5/8 PAN PHIL TYPE A ZINC CLEAR
8-32 X 5/16 PAN QUAD TAPTITE JS500
#8 X 1" PAN QUAD TYPE AB B/O
10-32 X 1/4 PAN PH TAPTITE JS500
#10 X 1/2 PAN PH TYPE A ZINC
#10 X 3/4 PAN PH TYPE A BLACK OXIDE
10-32 X 1 1/8 FLAT PH MS JS500
10-32 X 1 1/4 PAN QD MS JS500 BLACK
#10 X 1 1/2 PAN PH TYPE A JS500
1/4-20 X 1 5/16 TRUSS PH MS JS500
YORKVILLE PRODUCT SCHEMATIC
.5 SPACER ID-.171 OD-.25 #912-500
1/2 PLASTIC HEX SPACER #6
3/4 PLASTIC HEX SPACER #4
12" 8R 50WPGM SPEAKER CELESTION
3/8 1D FLAT WASHER
3/8 INT TOOTH LOCKWASHE ZINC
#10 SPLIT LOCK WASHER BO
#8 FLAT WASHER JS500
#10 FLAT WASHER FOR 3/16" BOLT
DPDT PUSH SW PCMT H BREAK B4 MAKE
DPDT MINI PC VERT SNP ALT
SPST ROKR SW QUIK 180" AC PWR BL/BL
9 PIN PC MOUNT TUBE SOCKET BE
9 PIN PC MOUNT TUBE SOCKET
12AX7 DUAL TRIODE PREAMP TUBE
6BQ5 PENTODE OUTPUT TUBE
1330 YCV20 POWER 120VAC 60HZ
XFMR
1330M
YCV20
OUTPUT XFMR
Qty.
3
4
1
2
2
2
3
1
1
3
1
2
2
2
2
2
1
4
1
1
1
2
1
1
2
13
2
1
1
3
1
1
7
4
7
5
1
7
2
2
1
1
14
9
2
11
3
2
2
4
25
16
10
2
4
4
4
1
4
9
7
1
1
1
6
4
8
1
4
1
2
3
3
2
1
1
G
H
C17
1N
IN
50V
C65
22U
500K
15A
R27
4425
1/4W
P6:A
100K
CLN VOL M
100V
500K
15A
4425
250V
12AX7
V2:B
K3:A
22U
C1
50V
P4:A
M CLN DRV
R4
1K54
C16
47N
0.7Vdc
33N
C39
50V
500K
15A
4425
R18
1M
1/4W
.
BLK W33
.
GRN W22
R3
1M
1/4W
1/4W
INGND
R14
220K
1/4W
0.7Vdc
R6
1K54
R31
1K
Mini
22U
100V
20K
15A
4423
22U
C9
50V
R28
1/4W
100K
P3:A
M MID
INGND
6K8
1/4W
R40
CLN
LD1
GRN
5908
4148
D1
3696
.
BLK W34
3
D2
22U
C63 50V C64 50V
500K
15A
4425
R19
100R
R36
47R
R
FT SW
J3
S
Gold Gold
.
2
MPSA06
Q6
5103
TO92
GND
C21
100N 100V
100N
BC560C
C19
Q5
100V
5102
R38
1/4W
TO92
10K
R39
10K
OD
LD2
YEL
5907
CH SEL
S2:B
3522
R41
4K7
MINI
CH SEL
S2:A
3522
P7:A
OD VOL M
3
R20
100K
P5:A
M OD DRV
R21
1M
R22
1K54
330N
C13
63V
TO92
R25
220K
R101
10K0 .
1/4W
8
1/4W
TL072CP
W29
.
BLK
D
100V
1.0W
FLMP
3682
RED
X39
2
W3
HI V
RED
PLATE4
V5:A
6BQ5
6541
R85
220R
R63
1/4W
220K
C34
100P 100V
GRN
Q9
5103
BRN
PLATE
W2
J7
6541
R88
100K
G
R56
47R
MPSA56
U2:A
U2:C
TL072CP
.
GRN W24
PL1
D6
4148
4148
D5
9
R59
1/4W
10K
R60
1/4W
10K
100V
R64
18K
R58
4R7
.
10
R61
100K
R65
2K2
Product
270Vdc
YCV20
Sheet1
PCB# M647
Sheet 1 of 3
Rev: 7V00
Date: Mon Sep 11, 2006
Filename: M647-7V00sch.sch2002
H
I
J
K
L
8
-15V
Q10
5104
103Vdc
F
AMP IN
J5
.
+15V
TO92
R55
47R
R57
1/4W
470R
150N
C35
63V
3
3682
BRN
S
8
REV DRV
C32
10N
1
FLMP
R
Gold Gold
GND
TO92
T2
BLK
V3:B
12AX7
"STYLE_P32"
E
R84
220R
T
1/4W
R78
100K
GND
C47
100N
R62
4K7
TL072CP
1/4W
R82
1M
1/4W
X46
GND
1330M
BLU
8.0Vdc
7
MPSA06
100N
C33
100V
J6
5
SCRN
R32
1/4W
47K
100N
C31
100V
R66
220K
270Vdc
V4:A
6BQ5
50V
CHGND
1/4W
1/4W
+150V_RAW
R76
1/4W
820R
R74
470K
R73
5.0W
100R
R75
470K
R77
1/4W
820R
22N
C45
400V
R33
1/4W
47K
GND
REV RTN
PL2
1.0W
R80
1/4W
470R
R83
1/4W
10K
10
R81
1M
1/4W
1/4W
G D S
TO-220
R79
82K
1/4W
250V
1/4W
9
C
SPKRW18
U2:B
22N
C44
400V
50V
C28
22U
1/4W
12AX7
V3:A
C46
4N7
PLATE
W1
-
R51
1/4W
10K
R54
1/4W
4K7
C30
220P 100V
1/4W
3682
BLU
103Vdc
MPSA06
MPSA56
TL072C
SPKR+
W17
3682
BLK
T
IRF830
-
NET00057
C27
22U
V+
3682
GRN
8
-
PRE OUT
J4
R52
1/4W
10K
V-
W15
.
BLK
S
4
W20
.
BLK
R
-15V
SPKR- JACKS-JACKS-
SPKR+
W30
BLU
JACKS+
R
U1:C
4
W16
.
BLU
S6:A
3436
T
+15V
U1:B
.
.
S
100V
R53
1/4W
4K7
GND
R99
100R
W14
BLU
JACKS+
J8
6
C29
220P
P8:A
REVERB M
1/4W
R97
680R
R102
562R
1/4W
R98
680R
1/4W
T
5.0W
R
1/2W
S
R103
562R
3436
S6:B
1/2W
J2
B
1/4W
R34
1/4W
10K
470P
C59
100V 100K
1B
4424
-15V
LINE VOLTAGE: 120Vac
OUTPUT LOAD: 8 OHMS
NO INPUT SIGNAL APPLIED
11
100N
C57
100V
NET00050
100N
C54
100V
3923
NODE VOLTAGE TEST CONDITIONS
3696_DRW
5
22U
C25
50V
GND
R100
10K0 .
1/4W
J9
3700_DRW
BOOST
S3:B
3522
R50
1/4W
620R
+15V
EBC
TO-92
R43
4K7
-15V
GND
C B E
TO-92
R45
10K
BOOST
LD3
RED
5906
BOOST
S3:A
3522
3696
6
BC550C
BC560C
Q8
R44 5102
1/4W
TO92
10K
1/4W
1/4W
0.8Vdc
50V
C26
22U
R29
1/4W
47R
GND
100V
100N
C20
100V
Q7
5103
1/2W
1/4W
500K
15A
4425
U1:A
R24
1/4W
220K
MPSA06
4
V+
330N
C6
63V
2N2
C14
400V
400V
R49
1/4W
620R
R42
220R
V-
R17
1K54
K2:A
C12
1N
R46
75R
1/4W
R15
1M
1/4W
1/4W
0.7Vdc
R89
220K
4148
D4
C22
100N
1/4W
4N7
C5
250V
100V
TL072CP
400V
12AX7
V2:A
R26
1/4W
47K
C23
220P
R48
1/4W
100K
22N
C24
100V
R47
1K
1/4W
5
1/4W
R11
1/4W
220K
C11
2N2
83Vdc
1/4W
R9
1/4W
100K
400V
R30
1/4W
470K
R2
1M
R23
113K
1/4W
C8
2N2
12AX7
V1:B
1/4W
93Vdc
R10
1/4W
220K
100V
3N3
C10
100V
R16
113K
1/4W
1/4W
2N2
C7
400V
4
K1:B
1/4W
K2:B
K1:A
A
R37
100R
T
NET00037
+150V
7
R35
1K
GND
CHGND
C4
6N8
Q
4148
4148
D3
P2:A
M BASS
FLMP
50V
1/4W
C61
100N
89Vdc
P
1
K3:B
P1:A
M TREBLE
C15
100N
C3
100N
12AX7
V1:A
R12
1/4W
2K21
IN
R8
33K
R7
113K
O
+15V
1/2W
.
.
YEL W31 YEL W32
2
250V
470P
C18
100V
N
1/4W
93Vdc
470P
C58
100V
R13
1/4W
220K
M
1/4W
C2
10N
+150V_RAW
L
1/4W
1/4W
RING
R5
113K
K
100K
1B
4424
BRIGHT
S1:B
3522
1/4W
BRIGHT
S1:A
3522
+150V
1/4W
J1
J
K1:C
FUNCTION
1
I
400V
1/4W
F
R96
1/2W
2K2
E
MINI
D
R95
1/4W
470R
C
1.0W
B
1/4W
A
M
N
O
P
Q
11
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
1
1
3682
RED
22U
C36
350V
HI1
4007
D10
C40
220N
LV2
LINE
W12
PR1
470U
C50
25V
TO220
1N5262B
D19
51V0
0W5
1N5262B
D18
51V0
0W5
22U
C42
350V
1N5262B
D17
51V0
0W5
R94
1/4W
10K
+150V
160V
C60
10U
2
GND
22U
C43
350V
3
NET00077
V1:C
R87
1/2W
18R
GND
4
NET00065
100N
C53
50V
FunctionOUT
MC7915CT
U3
LV1
V2:C
-15V
NET00048
-15Vdc
4
5
LO V
W7
3682
YEL
R1
1/2W
18R
C.T.
W19
3682
120V
W11 BLK
4N7
C56
250V
GND
9
3
3682
GRN
FIL
W8
V4:B
.
GRN W23
#
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
7
RED
BLK
RED
SCH_DPDT
IEC_RECT
6
5
T1
1330E
GRY
4
YEL
S5
GRY
3
BLK
2
GRN
9
CE AC
GRN
1
Ribbon cables
10
W26:A
W26:B
W26:C
W26:D
W26:E
W26:F
W26:H
W26:G
W26:I
-15V
NET00095
GND
+15V
NET00092
NET00066
GND
B
W38:A
W38:B
W38:C
W38:D
W38:E
W38:F
W38:G
W38:H
W38:I
GND
NET00082
NET00103
NET00099
NET00080
NET00098
GND
NET00093
NET00087
C
V5:B
3.2Vac
8
GND
FLMP
CHGND
FUSE
F1
+150V_RAW
R93
100R0
6
MODEL(S):-
9
FLMP
V3:C
3.2Vac
2 HTR2
GRN
3682 FIL
GRN
W9
GRN
1
7
T400mAL
R92
100R0
1/8W
5
3682
GRY GRY
GRY
LINE
W10
PR2
A
154Vdc
6
T1
.
1330
22N
C55
275V
6
11
100N
C52
50V
RED
3682
WHT
W25:A
W25:B
W25:C
W25:D
W25:E
W25:F
W25:H
W25:G
W25:I
+150V_RAW
R72
1.0W
10K0
GND
IN
YEL
8
TO220
470U
C51
25V 6871
4007
BLK
R90
1.0W
10K0
212Vdc
GND
4007
D14
RED
22U
C41
350V
R86
1/2W
+15Vdc18R
GND
470U 6872
C49
25V
1/8W
5
S5
IEC_RECT
T1AL
For Euro - T400mAL
3682 120V
BLK 8 W13
FLMP
0W5
1N5240BRL
R68
470R
+15V
4007
D13
7
3682
FLMP
SCRN
R71
1.0W
220R
250V
U4
MC7815CT
FunctionOUT
470U
C48
25V
R67
680K
R70
1/4W
10R
FLMP
D16
10V0
IN
LO V
W6 D11
R69
1/4W
10R
S Q11
6730
TO220
.
G
HI2
3682
GRY
4
SCH_SPDT
22U
C38
350V
4007
D15
4007
D12
FUSE
F1
22U
C37
350V
4007
OPERATE
LD5
RED
6398
IRF830
D
HI V4007
W5
D9
3682
RED
STBY
LD4
YEL
6399
3
283Vdc
4007
D8
HI V
W4
272Vdc
PLATE
D7
R91
470R
47N
C62
1/4W
1.0W
2
100V
STANDBY
S4:B
3522
1/4W
STANDBY
S4:A
3522
+15V
W39:A
W39:B
W39:C
W39:D
W39:E
W39:F
W39:G
W39:H
W39:I
D
E
DATE
FEB, 2003
19 Feb, 2003
21 Feb, 2003
.
Apr 07, 2003
.
May, 12, 2003
16-DEC-2003
16-DEC-2003
5-JAN-2004
06-OCT-2004
.
.
12-OCT-2005
23-MAY-2006
.
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
F
M647
M647 POT LIST
YCV20
YCV20
MODEL(S):REF
FUNCTION PART# KNOB
VER# DESCRIPTION OF CHANGE
#8430
#4424
TREBLE
P1
V1.00 FIRST PRODUCTION
#8430
#4425
BASS
P2
V1.03 Force updated r70,r72 to fix hole size.
#8430
#4423
MID
P3
V2.00 Fixed hole size on tube socket - added clinch hole
#8430
GAIN 2 (CLN) #4425
P4
.
Updated targets
#8430
GAIN 1 (OD DRV)#4425
V3.00 PC#6597 R31 2k2 1/2W to 1K 1W. Add C64,C65,R95,R96, P5
#8430
#4425
VOL 2 (CLN)
P6
.
D2
#8430
#4425
VOL (OD)
P7
4.00
Fix shorts in Ver 3.00
#8430
#4424
REVERB
5.00
Added headphones, DI out, ext. spkr jack and spkr defeat P8
K
P
F
R
Connected jacks -ve to speaker -ve, reduced headphone gain
5.00
K
P
F
R
5.00
Shifted footswitch jack by 200mil
K
P
F
5.10
PC#6716 CHANGE R66&R63 TO 220K (4841), R58 TO 4R7 R
K
P
F
.
(4866), R54&R53 TO 4K7 (4827), C35 TO 150N (5229), R88 R
.
TO 100K (4838) [GT]
AH, PC#6937, CHANGE TUBE SOCKET DRILLING
6.00
PC#7125:GT:#3914 RCA JACK ->#6541, PC#7091: ENLARGE
7.00
HOLES FOR #3522 DPDT SWITCH, UPDATED RELAYS
.
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
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
G
H
I
J
K
7
{NEW}
MAR 2003
""
""
""
""
""
""
""
N
N
N
N
8
9
10
Product
YCV20
PowerSupply
PCB# M647
Sheet 2 of 3
Rev: 7V00
Date: Mon Sep 11, 2006
Filename: M647-7V00sch.sch2002
L
M
N
O
P
Q
11
SHEAR
SHEAR
INSERT
VCD
ORIGIN
LONG AXIS
R91
470R
1.0W
REV DRV
CHGND
R50
GRN
620R
47K
47K
Gold
10K
10K
C27
50V
22U
22U
50V
R51
W38
3610
3674
W27
M6477V00
3/5
562R
R102
D.I. OUT
W13
3923
680R
1/2W
-
BLU
W16
R97
R98
680R
1/2W
-
W12
W15
JACKSBLK
BLK
W20
SPKR+
BLU
JACKS+
W14
Gold
#3450
BUTTON
J2
EXTERNAL SPKR
R103
X60
R100
X27
J9
10K0
562R
.
SPKR-
5.0W
10K0
RT
V
INT. SPKR. DEFEAT
S6
3436
100R
X28
M647
4/5 R99
C55
22N
275V
6435
TJH5
XC93
WHT
LINE
22U
50V
620R
R49
C25
C28
FT SW
XC51
SEE LAYOUT DOCUMENTATION
Gold
C26
AMP IN
R52
W5
RED
120V
W4
TJH1
Gold
7
Gold
Pcb MechM647 7V00
Top Assy M647 7V00
Top Assy M647 7V00
NOR
Gold
HEADPHONES
YEL C.T.
PRE OUT
W11
GRY
7
R101
D13
NCR
CR
NOL
J3
J5
Gold
-
7
LINE
W10
RED
4007
.
W24
R32 R33
22U
50V
BLK 120V
D11
HI V
4007
-
6541
C56
4N7
RT
V
6451
250V
W6
W7
LO V LO V
D14
4007
4007
J4
REV RTN
R55
R57
R56
47R
47R
470R
Q9
10K
X34 MPSA06
10K
10N
C32
R59
R60
C48
R58
4R7
X45
100N
100K
FIL
X38
C38
C49
D12
HI V
STBY OPERATE
X43
X53
X47
47N
100N
33K
X35
X42
X36
TL072CP
R61
R62
100N
CHGND
C50
X57
W23
.
GRN
22U
350V
CLINCH
ORIGIN
D10
R92
W19
51V0
D18
D9
D7
25V
470U
3674 W37
51V0
D19
X25
5882
22U
350V
C37
25V
470U
3610
W26
C40 U3
250V
220N
X30
X26
100R0
D8
U4
100N
C53
X59
470R
C52
TO220
R93
100R0
CL
WHT
6541
GRN
W8
FIL
W9
100N
220K
4K7
18K
R64
R63
C34
100P
R65
TO220
51V0
D17
470U C51
25V
10R
X20
6872
MC7815CT
R67
680K
R68
R74
6871
MC7915CT
470U
25V
R69
470K
R72
C43
22U
350V
R70
10R
C47
10K0
1.0W
Q11
10V0
D16
100N
R84
R83
X37
220R
1.0W
C44
400V
22N
10K
22U
350V
R76
820R
.
C46
4N7
X58
X48
X41
113K
R7
2K2
C11
2N2
6730
IRF830
GRN
C36
SEE PRODUCTION NOTE #1
6BQ5
X52
X49
4K7
R54
5865
100N
M6477V00
NCL
47N
X55
X50
X22
X54
R8
TL072CP
220P
C30
X33
R29
47R
X18
1M
470K
R30
X31
33N
C39
C3
470P C58
C2
C1
1M
R21
1N
Q5
X14
100N C21
X13
BC560C
100K
R48
R2 220P C23
50V
22U
100N
NO
NC
22U
50V
4148
100R
D1
X15
R22
X7
C18
470P
330N
1K54
C12
R25
220K
R24
220K
1N
C10
3N3
113K
R23
X44
U2
X29
X39
V4
R81
1M
R79
82K
1M
R82
R78
100K
X12
MPSA06
4148
470R
R95
K1
X32
R94
X10
10K
100K
R9
22N
400V
C45
22U
350V
C41
X5
220K
220K
X9
R89 R13
R14
220K
6N8
C4
220K
1M
4N7
C5
R11
R15
220K
2N2
R20
C7
C8 2N2
X16
100K
X3
X1
R16
113K
1K54
330N
C60
R17
10U
160V
X21
R10
18R
1/2W
X2
2K21
R12
X19
W1
W2
W3
W18
22U
350V
W17
D3
4148
R86
C2
C1
X24
10N
5834
C2
113K
R5
TIP
3921
SHORT AXIS
X51
X11
D4
4148
NC
R45
2N2
1K54
R4
NO
10K
R44
10K
BC560C
100N
100N
1M
R3
J1
SL
EE
VE
RING-SW
ETCH
GUIDE
3983
S4
STANDBY
OUT
X56
-
+
J8
IN
CLICK
SPKR+
R90
10K0
1.0W
3610
D6
D5
4007
R71
220R
1.0W
W25
4148
4148
100N
C54
4007
TIP-SW
GRN
V2
R1
V3
R6
W36 3674
12AX7
470R
R80
100K
C35 150N C33
-
+
YEL LD4
6399
C62
470P C59
RCA
C42
R88
R18
1M
C57
100N
Q10
MPSA56
RED
6398
LD5
RCA
BLU
JACKS+
W30
X46
12AX7
C31
G2
BLK
JACKSW29
.
BLK
1.0W
220R
C9
50V
22U
1B
REVERB
P3
J6
R85
3732
X40
M6477V00
2/5
3983
NOR
100K 4424
15A
C15 C16
P2
P8
MID
G3
HI V
SPKR.
820R
R77
NOL
P1
3674
W28
220K
R66
1K54
18R
1/2W
470K
100K
R27
R87
18R
1/2W
SEE PRODUCTION NOTE #2
100R
6BQ5
R75
47K
R26
5.0W
V5
CR
15A
BASS
4423
20K
G3
PLATE
BRN
RED
R73
TJH2
3983
NCR
CL
C17
1B
500K 4425
SIG
PLATE
BLU
S1
NCL
WHT
C13 BRIGHT
X6
NOR
X17
100K 4424
TREBLE
ETCH
GUIDE
3610
R34
10K
G1
M647 5/5
CLN VOL
YCV20
7V00
G2
RING
C6
NOL
P4
C29
220P
W39
J7
INGND CHGND
100N
C61
WHT
CH SEL
S2
CLN
5908
U1
TJH4
M647 1/5
SIG
12AX7
R28
100K
+
15A
R19
R53
4K7
7
3732
CR
P6
R40
6K8
GRN
7
NOR
NCR
CL
C64
RELAY 1C
15A
CLN DRV
NCL
C24
22N
500K 4425
D15
WHT
BOOST
NOL
V1
P7
R38
R31
-
4007
CR
C19
1.0W
1K
K3
LD1
1
NCR
CL
R39
10K
10K
2
NCL
500K 4425 C63
15A
S3
C1
X8
R36
47R
Q6
4007
RELAY 2C
OD VOL
50V
22U
OD
R41
4K7
R37
100R
1K
1/2W
R35
G1
IN
.
W22
.
W34
IN
W32
R43
R46
NO
YEL BLK GRN
.
W31
P5
.
YEL
4K7
75R
5907
+
NC
OD DRV
R42
500K 4425
RELAY 1C
C14
15A
W33
BOOST
5906
K2
-
C
500K 4425
R47
220R
+
TJH3
INGND
.
BLK
1K
1/2W
-
ETCH
GUIDE
4007
Q7
C20 C22
RED
LD3
Q8
C65
22U
50V YEL
LD2
2K2
1/2W
R96
MPSA06
D2
Shear after auto-insert - 10"
XC96
SEE LAYOUT DIAGRAM
M647
MODEL(S):#
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
DATE
FEB, 2003
19 Feb, 2003
21 Feb, 2003
.
Apr 07, 2003
.
May, 12, 2003
16-DEC-2003
16-DEC-2003
5-JAN-2004
06-OCT-2004
.
.
12-OCT-2005
23-MAY-2006
.
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
YCV20
VER# DESCRIPTION OF CHANGE
V1.00 FIRST PRODUCTION
V1.03 Force updated r70,r72 to fix hole size.
V2.00 Fixed hole size on tube socket - added clinch hole
.
Updated targets
V3.00 PC#6597 R31 2k2 1/2W to 1K 1W. Add C64,C65,R95,R96,
D2
.
Fix shorts in Ver 3.00
4.00
5.00
Added headphones, DI out, ext. spkr jack and spkr defeat
5.00
Connected jacks -ve to speaker -ve, reduced headphone gain
5.00
Shifted footswitch jack by 200mil
5.10
PC#6716 CHANGE R66&R63 TO 220K (4841), R58 TO 4R7
.
(4866), R54&R53 TO 4K7 (4827), C35 TO 150N (5229), R88
.
TO 100K (4838) [GT]
6.00
AH, PC#6937, CHANGE TUBE SOCKET DRILLING
7.00
PC#7125:GT:#3914 RCA JACK ->#6541, PC#7091: ENLARGE
.
HOLES FOR #3522 DPDT SWITCH, UPDATED RELAYS
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
V
N
V
N
V
N
V
N
V
N
V
N
V
N
M647 DRILL HISTORY
MODEL(S):#
1
2
3
4
5
6
DATE
MAY-23-2006
D
D
D
D
D
MODEL(S):#
1
2
3
4
5
6
PC#
PC
PC
PC
PC
PC
PC
REF
P1
P2
P3
P4
P5
P6
P7
P8
R
R
R
R
FUNCTION PART# KNOB
TREBLE
BASS
MID
GAIN 2 (CLN)
GAIN 1 (OD DRV)
VOL 2 (CLN)
VOL (OD)
REVERB
F
F
F
F
IRF830
H
H
4
G D S
TO-220
EBC
TO-92
C B E
TO-92
5
1P
6
7
2G 2
8 1K G1 2
2P
1
9
12AX7A
HT
H
H
1G K 3
G3
2K 3
NC
4
5
NC
COM1 COM2
6
7
P
NC
NO
8 NC
1
9
EL84
C2
YCV20
PENDING CHANGE
X
X
X
X
X
X
NC1
NC2
NO1
NO2
C1
G2
3696_DRW 3700_DRW
TL072C
#4424
#4425
#4423
#4425
#4425
#4425
#4425
#4424
P
P
P
P
#8430
#8430
#8430
#8430
#8430
#8430
#8430
#8430
K
K
K
K
1. MOUNTING DETAILS FOR Q11, U3 AND U4
#8800
Z437
#3850
Devices
#3796
#8837
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
M647 POT LIST
YCV20
MODEL(S):-
LEAD/PIN REFERENCE
MPSA06
MPSA56 BC550C
YCV20
VER# DESCRIPTION OF CHANGE
V07
PC#7125 AND #7091, SEE HISTORY TABLE
V
N
V
N
V
N
V
N
V
N
M647 PENDING CHANGES
PRODUCTION NOTES
2.
LEADS FOR W25 RIBBON CABLE MUST BE BENT AWAY
FROM PCB HOLE AND TRIMMED
RIBBON CABLE
{NEW}
MAR 2003
""
""
""
""
""
""
""
N
N
N
N
HOLE
LEAD BENT AND TRIMMED
"STYLE_P32"
YCV20 - JAN. 15, 2004
THIS DIAGRAM APPLIES TO BOARDS THAT ARE VERSION 5.00 OR HIGHER
PREAMP BOARD
12AX7
PREAMP
12AX7
PREAMP
V1:A V1:B
V2:A V2:B
CLEAN
INPUT
LEAD
OUTPUT
LEAD
INPUT
M647
YCV20
VER X.XX
CLEAN
OUTPUT
INPUT
V5
6BQ5
OUTPUT -VE
V4
V3
POWER SUPPLY
& OUTPUT BOARD
6BQ5
OUTPUT +VE
FX LOOP &
FOOTSW. BOARD
SPKR./HEADPHONE
BOARD
12AX7
PHASE- SPLITTER
*ALL BOARDS SHOWN FROM COMPONENT SIDE