- Traynor Amps

SERVICE MANUAL
TYPE: YS1003
YCV50B
WEB ACCESS: http://www.yorkville.com
WORLD HEADQUARTERS
CANADA
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-ycv50b-00-1v0.pdf
IMPORTANT SAFETY INSTRUCTIONS
This lightning flash with arrowhead symbol, within
an equilateral triangle, is intended to alert the user to
the presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilatereal triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.
Le point d’exclamation à l’intérieur d’un triangle équilatéral
est prévu pour alerter l’utilisateur de la présence
d’instructions importantes dans la littérature accompagnant l’appareil en ce qui concerne l’opération et la
maintenance de cet appareil.
Ce symbole d’éclair avec tête de flèche dans un triangle
équilatéral est prévu pour alerter l’utilisateur de la présence d’un
« voltage dangereux » non-isolé à proximité de l’enceinte du
produit qui pourrait être d’ampleur suffisante pour présenter
un risque de choque électrique.
S2125A
FOLLOW ALL INSTRUCTIONS
Instructions pertaining to a risk of fire,
electric shock, or injury to a person
SUIVEZ TOUTES LES INSTRUCTIONS
Instructions relatives au risque de feu,
choc électrique, ou blessures aux personnes
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER (OR BACK).
AVIS: AFIN DE REDUIRE LES RISQUE DE CHOC
ELECTRIQUE, N’ENLEVEZ PAS LE COUVERT (OU LE
PANNEAU ARRIERE) NE CONTIENT AUCUNE PIECE
NO USER SERVICEABLE PARTS INSIDE.
REPARABLE PAR L’UTILISATEUR.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
CONSULTEZ UN TECHNICIEN QUALIFIE
POUR L’ENTRETIENT
Read Instructions: The Owner’s Manual should be read and understood before operation
of your unit. Please, save these instructions for future reference and heed all warnings.
Clean only with dry cloth.
Packaging: Keep the box and packaging materials, in case the unit needs to be
returned for service.
Veuillez Lire le Manuel: Il contient des informations qui devraient êtres comprises avant
l’opération de votre appareil. Conservez. Gardez S.V.P. ces instructions pour consultations
ultérieures et observez tous les avertissements.
Nettoyez seulement avec le tissu sec.
Emballage: Conservez la boite au cas ou l’appareil devait être retourner pour réparation.
Warning: To reduce the risk or fire or electric shock, do not expose this apparatus to rain or
moisture. Do not use this apparatus near water!
Avertissement: Pour réduire le risque de feu ou la décharge électrique, n'exposez pas
cet appareil à la pluie ou à l'humidité. N’utilisez pas cet appareil près de l’eau!
Warning: When using electric products, basic precautions should always be followed,
including the following:
Attention: Lors de l’utilisation de produits électrique, assurez-vous d’adhérer à des
précautions de bases incluant celle qui suivent:
Power Sources
Your unit should be connected to a power source only of the voltage specified in the
owners manual or as marked on the unit. This unit has a polarized plug. Do not use
with an extension cord or receptacle unless the plug can be fully inserted. Precautions should be taken so that the grounding scheme on the unit is not defeated. An
apparatus with CLASS I construction shall be connected to a Mains socket outlet with
a protective earthing ground. Where the MAINS plug or an appliance coupler is used
as the disconnect device, the disconnect device shall remain readily operable.
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. Only use
attachments/accessories specified by the manufacturer
Note: Prolonged use of headphones at a high volume may cause
health damage on your ears.
The apparatus should not be exposed to dripping or splashing water; no objects
filled with liquids should be placed on the apparatus.
Terminals marked with the “lightning bolt” are hazardous live; the external wiring
connected to these terminals require installation by an instructed person or the use of
ready made leads or cords.
Ensure that proper ventilation is provided around the appliance. Do not install near
any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
No naked flame sources, such as lighted candles, should be placed on the apparatus.
Power Cord
Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other. A grounding type plug has two blades and a
third grounding prong. The wide blade or the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet. The AC supply cord should be routed so that it is unlikely that it will be
damaged. Protect the power cord from being walked on or pinched particularly at plugs. If
the AC supply cord is damaged DO NOT OPERATE THE UNIT. To completely disconnect
this apparatus from the AC Mains, disconnect the power supply cord plug from the AC
receptacle. The mains plug of the power supply cord shall remain readily operable.
Unplug this apparatus during lightning storms or when unused for long periods of time.
Service
The unit should be serviced only by qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally, or has been dropped.
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. Un appareil construit selon les normes de CLASS I
devrait être raccordé à une prise murale d’alimentation avec connexion intacte de mise
à la masse. Lorsqu’une prise de branchement ou un coupleur d'appareils est utilisée
comme dispositif de débranchement, ce dispositif de débranchement devra demeurer
pleinement fonctionnel avec raccordement à la masse.
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. Utilisez seulement
les attachements/accessoires indiqués par le fabricant
Note: L'utilisation prolongée des écouteurs à un volume élevé peut
avoir des conséquences néfastes sur la santé sur vos oreilles. .
Il convient de ne pas placer sur l’appareil de sources de flammes nues, telles que
des bougies allumées.
L’appeil ne doit pas être exposé à des égouttements d’eau ou des éclaboussures
et qu’aucun objet rempli de liquide tel que des vases ne doit être placé sur l’appareil.
Assurez que lappareil est fourni de la propre ventilation. Ne procédez pas à
l’installation près de source de chaleur tels que radiateurs, registre de chaleur, fours
ou autres appareils (incluant les amplificateurs) qui produisent de la chaleur.
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
Ne pas enlever le dispositif de sécurité sur la prise polarisée ou la prise avec tige de
mise à la masse du cordon d’alimentation. Une prise polarisée dispose de deux lames
dont une plus large que l’autre. Une prise avec tige de mise à la masse dispose de
deux lames en plus d’une troisième tige qui connecte à la masse. La lame plus large ou
la tige de mise à la masse est prévu pour votre sécurité. La prise murale est désuète si
elle n’est pas conçue pour accepter ce type de prise avec dispositif de sécurité. Dans
ce cas, contactez un électricien pour faire remplacer la prise murale. Évitez
d’endommager le cordon d’alimentation. Protégez le cordon d’alimentation. Assurezvous qu’on ne marche pas dessus et qu’on ne le pince pas en particulier aux prises.
N’UTILISEZ PAS L’APPAREIL si le cordon d’alimentation est endommagé. Pour
débrancher complètement cet appareil de l’alimentation CA principale, déconnectez le
cordon d’alimentation de la prise d’alimentation murale. Le cordon d’alimentation du
bloc d’alimentation de l’appareil doit demeurer pleinement fonctionnel.
Débranchez cet appareil durant les orages ou si inutilisé pendant de longues périodes.
Service
Consultez un technicien qualifié pour l’entretien de votre appareil. L'entretien est
nécessaire quand l'appareil a été endommagé de quelque façon que se soit. Par exemple
si le cordon d’alimentation ou la prise du cordon sont endommagés, si il y a eu du liquide
qui a été renversé à l’intérieur ou des objets sont tombés dans l'appareil, si l'appareil a été
exposé à la pluie ou à l'humidité, si il ne fonctionne pas normalement, ou a été échappé.
safety-4v7 • May 7/2008
YCV50B Parts List 5/20/2010
YS No.
5906
5907
5908
6397
6398
6399
6438
6825
6461
6731
5101
5103
6730
6884
5197
5203
5201
5206
5208
5273
5422
5209
5224
5840
6435
6451
5212
5227
5233
5234
5865
5882
5254
5257
5631
5945
5959
5267
5268
5621
5879
5902
4423
4424
4425
4520
3976
8504
8522
3478
3487
3489
3494
3602
9925
2280
3450
3498
3921
3890
6541
3451
2403
TFS-2B
8456
8889
3438
3552
3810
3674
8430
8638
3428
8268
8701
8800
8604
8890
8898
3796
3850
4599
4703
4817
2019
4735
2022
Description
RED 3MM LED 1V9 20MA.4SPCER T&R
YEL 3MM LED 1V9 20MA.4SPCER T&R
GRN 3MM LED 1V9 20MA.4SPCER T&R
JEWELED PILOT LAMP AMBER REG V1
RED 5MM LED 1V5 20MA HIGH EFF
YEL 5MM LED 1V5 20MA HIGH EFF
1N4007 1000V 1A0 DIODE
T&R
1N4148 75V 0A45 DIODE
T&R
1N5240BRL 10V0 0W5 ZENER 5% T&R
L7824
TO220 P 24V0 REG
BC550C
TO92 NPN TRAN T&R TB
MPSA06
TO92 NPN TRAN T&R TA
IRF830
TO220 NCH MFET
TN
NE5532N IC DUAL OP AMP
220P 100V 2%CAP T&R RAD CER.2NPO
_47P 100V 2%CAP T&R RAD CER.2NPO
470P 100V 5%CAP T&R RAD CER.2NPO
__1N 400V 5%CAP T&R RAD .2FLM
__2N2 400V 5%CAP T&R RAD .2FLM
__1N5 200V 5%CAP T&R RAD CER.2NPO
__1N 50V 10%CAP T&R BEAD
NPO
__4N7 250V 5%CAP T&R RAD .2FLM
_47N 100V 10%CAP T&R RAD .2FLM
_22N 400V 10%CAP BLK RAD POLY FLM
_22N 275V 20%CAP BLK 'X2' 15MM AC
__4N7 250V 20%CAP BLK 'Y' 10MM AC
100N 63V 5%CAP T&R RAD .2FLM
_82N 100V 5%CAP T&R RAD .2FLM
330N 63V 5%CAP T&R RAD .2FLM
470N 63V 10%CAP T&R RAD .2FLM
100N 250V 10%CAP BLK RAD POLY FLM
220N 250VDC 10%CAP BLK RAD PLY FLM
__1U 63V 20%CAP T&R 4X7MM .2EL
__2U2 63V 20%CAP T&R RAD .2EL
_22U 50V 20%CAP T&R 6X7MM .2EL
_10U 63V 20%CAP T&R RAD .2EL
_10U 450V 20%CAP BLK
EL
100U 25V 20%CAP T&R RAD .2EL
220U 35V 20%CAP T&R RAD .2EL
470U 63V 20%CAP BLK 12X25MM EL
100U 16V 20%CAP T&R 8X7MM .2EL
_82U 450V 20%CAP BLK 22X30MM
_20K 15AAUDIO 9MM
P32
100K 1B LIN 9MM
P32
500K 15AAUDIO 9MM
P32
_10K
TRIM POT
SNAP ON 0.843" INSULATING BUSHING
CORNER, 2 LEGS NOTCED LIP NICKEL
RUBBER BUMPER WITH WASHER -SMALLCLIP 205/187X032 18-22AWG DISCO/INS
CLIP 250X032 14-16AWG MALE BULK
CLIP 250X032 18-22AWG DISCO/INSL
CLIP 205/187X020 14-16AWG DISCO/INS
RING TERMINAL 18AWG WIRE & #8 SCREW
TINNERMAN CLIP 1/8" STUD SIZE ROUND
280 PHONO PLUG
1/4" JCK PCB MT ALL-GOLD SKT
1/4" JCK PCB MT HORZ
1/4" JCK PCB MT VERT STER RT SWT
36"RCA DUAL CABLE 0'/90' RED/WHITE
RCA SNGL PCB MT HORZ K901
EYELET SMALL 0.089 OD PLATED
T2,0AL
5X20MM FUSE
TRAYNOR DUAL FOOTSWCH 10' CORD-BULK
10.0" STRAP HANDLE, NICKEL END CAPS
RUBBER GROMMET #2183-034-BLK
IEC PWR SOC W/.205TAB &FUSE 10A250V
NYLON SPRING CLAMP
4" NYLON CABLE TIE
9 CIR CABLE HOLDER .098
KNOB CHICKEN-BEAK
KNOB APMIXER PUSHSW BUTTON GREY
8' 3/18 SJT AC LINE CORD REMOVABLE
TRAYNOR LOGO PLASTIC NICKEL PLATING
4-40 KEPS NUT ZINC
6-32 KEPS NUT ZINC
10-32 T NUT
1/4-20 CAGE NUT C79-88142027
1/4-20 CAGE NUT C79 98142027
ELASTOMER PAD TSIL 1.0X0.8
TO-220 PLASTIC TRANSISTOR INSULATOR
22AWG SOLID SC WIR
T&R JMP
2.0W 2R 5%
T&R RES
1/4W 47R 5%
T&R RES
1/8W 100R0 1%FLAME PROOF T&R RES
1.0W 100R 5%
T&R RES
1.0W 220R 5%FLAME PROOF T&R RES
Qty.
1
1
1
1
1
1
10
6
1
1
3
3
1
2
2
1
4
4
4
2
1
3
4
3
1
1
7
1
1
2
3
2
1
1
11
3
4
1
1
1
2
1
3
3
5
1
2
8
4
5
1
2
2
1
3
1
2
3
1
1
2
36
1
1
1
4
1
4
14
4
11
4
1
1
2
4
6
4
2
1
2
64
3
3
4
2
2
YS No.
4736
4821
4891
4822
4823
4913
4824
4631
4847
4826
4827
4829
4830
6159
4831
4632
4833
4890
4840
4868
4634
4834
4586
4838
4942
4776
4851
4790
4668
6126
6145
4879
4842
4843
4844
3610
3700
3537
8865
8741
8832
8807
8801
8829
8722
8809
8734
8756
8727
8843
8786
8770
3741
3865
3858
7081
8482
8488
8820
8491
8817
3522
3698
3682
3887
3731
3732
3733
12AX7BLK
EL34BULK
CH1324
CH1324M
Description
5.0W 390R 5%
BLK RES
1/4W 470R 5%
T&R RES
1/4W 620R 5%
T&R RES
1/4W 820R 5%
T&R RES
1/4W 1K 5%
T&R RES
1.0W 1K 5%
T&R RES
1/4W 1K5 5%
T&R RES
1/2W 2K 5%
T&R RES
1/4W 2K2 5%
T&R RES
1/4W 3K3 5%
T&R RES
1/4W 4K7 5%
T&R RES
1/4W 10K 5%
T&R RES
1/4W 15K 5%
T&R RES
1.0W 15K 5%
T&R RES
1/4W 18K 5%
T&R RES
1/2W 22K 5%
T&R RES
1/4W 27K 5%
T&R RES
1/4W 30K 5%
T&R RES
1/4W 33K 5%
T&R RES
1/4W 36K 5%
T&R RES
1/2W 47K 5%
T&R RES
1/4W 47K 5%
T&R RES
1/4W 82K 5%MINI
T&R RES
1/4W 100K 5%
T&R RES
1/4W 100K 5% .2"U
T&R RES
1/4W 113K 1%
T&R RES
1/4W 120K 5%
T&R RES
2.0W 150K 5%10MM BODY T&R RES
2.0W 220K 5%10MM BODY T&R RES
1/4W 220K 5%MINI
T&R RES
1/4W 249K 1%MINI
T&R RES
1/4W 270K 5%
T&R RES
1/4W 330K 5%
T&R RES
1/4W 470K 5%
T&R RES
1/4W 1M 5%
T&R RES
10.0" 9C-26AWG RIB 3/4" NOTCH 0.1"
RELAY 2C 01AMP DC24 015MA PC-S
ACC# 4EB3C1B LONG REVERB
4-40 X 5/16 PAN PH MS JS500
4-40 X 1/2 PAN PH MS JS500
6-32 X 1/4 PAN PH TAPTITE JS500
6-32 X 5/16 PAN PH MS JS500
6-32 X 3/8 PAN PH TAPTITE JS500
6-32 X 3/8 FLAT PH TAPTITE BO#C HEA
#8 X 1" PAN QUAD TYPE AB B/O
10-32 X 1/4 PAN PH TAPTITE JS500
#10 X 1/2 PAN PH TYP A BRITE NICKEL
#10 X 3/4 PAN PH TYPE A BLACK OXIDE
#10 X 1" PAN PH TYPE A JS500 BLACK
10-32 X 1 1/8 FLAT QUAD MS JS500
10-32 X 1 1/4 PAN QD MS JS500 BLACK
1/4-20 X 1 5/16 TRUSS PH MS JS500
.5 SPACER ID-.171 OD-.25 #912-500
1/2 PLASTIC HEX SPACER #6
3/4 PLASTIC HEX SPACER #4
12" 8R 60WPGM SPKR CELEST VINT30
3/8 1D FLAT WASHER
3/8 INT TOOTH LOCKWASHE ZINC
#8 FLAT WASHER JS500
#10 SPLIT LOCK WASHER BO
#10 FLAT WASHER FOR 3/16" BOLT
DPDT MINI PC VERT SNP ALT
SPST ROKR SW QUIK 180" AC PWR BL/BL
250 MALE PCB TAB REEL
ADHESIVE LINED GROMMET EDGING
SPRING RETAINER FOR OUTPUT TUBE
9 PIN PC MOUNT TUBE SOCKET BE
8 PIN PC MOUNT TUBE SOCKET
12AX7 DUAL TRIODE PREAMP TUBE
EL34 PENTODE OUTPUT TUBE
YCV40 POWER 120-100VAC 50-60HZ XFMR
YCV40 O/P TRAN
XFMR
Qty.
1
2
2
2
1
2
5
2
5
1
2
11
1
1
2
1
2
1
2
2
1
6
1
11
1
3
5
1
2
5
1
1
2
3
6
2
2
1
18
2
13
1
4
11
4
25
16
2
4
2
4
4
4
11
7
1
1
1
4
8
8
4
1
15
1
2
3
2
3
2
1
1
MODEL TYPE: YS1003
Block Diagram for YCV50B
12AX7
V3
12AX7
12AX7
V2
V1
POWER
DISCONNECT POWER WHEN
REPLACING TUBES
EQ
EL34
DÉBRANCHÉ L’APPAREIL AVANT
DE REMPLACER LES LAMPES
Boost
Treble/Bass/Mid
Mono
1/4-inch
PREAMP
SPLITTER
DESIGNED AND MANUFACTURED BY YORKVILLE SOUND
V5
EL34
V4
Ch. 2
Volume
Preamp
V1:A
Preamp
V2:A
0 dB
Input
Channel
Select
Pre-Amp
Out
Channel
Select
K1
EQ
K1
Treble/Bass/Mid
Preamp
V1:B
Ch. 1
Volume
Preamp
V2:B
Amp In
Reverb
Drive
U2
B
Power
Amp
Reverb
Accutronics ©
4EBC1B
U1
B
Splitter
V3
Reverb
Rtn
Channel Select
Master
Volume
V4
V5
External
Speaker Out
+
-
External
Speaker Out
12-inch Speaker
YS#7081
8-ohms
-
+
Boost
Footswitch
BLOCK-DIAG-ycv50B-00-2v0
#
Part#
Description
Labeled Components
1
2
3
4
1
8268
TRAYNOR LOGO
2
7081
12" 8R 60WPGM SPKR CELEST VINT30
3
Z357
YCV40/YCV50 GRILLE* ‡ (specify product when ordering)
4
8563
CORNER, 2 LEGS NOTCED BLK PLASTIC
5
8522
RUBBER BUMPER WITH WASHER -SMALL-
6
3438
IEC PWR SOC W/.205TAB &FUSE 10A250V
7
6397
JEWELED PILOT LAMP AMBER REG
8
8451
10" STRAP HANDLE,BLACK METAL ENDCAP
9
8770
1/4-20 X 1 5/16 TRUSS PH MS JS5
10
8430
CHICKEN-BEAK KNOB
11
3921
1/4" JCK PCB MT VERT STER RT SWT
12
3450 & 3450NUT
1/4" ALL GOLD PC MNT JK SKT
13
3698
14
TFS-2B
SPST ROKR SW QUIK 180" AC PWR
TRAYNOR DUAL FOOTSWCH 10' CORD
15
3428
8' 3/18 SJT AC LINE CORD REMOVABLE
16
8638
PUSH SW BUTTON GREY
17
3731
SPRING RETAINER FOR OUTPUT TUBE
18
3537
ACC# 4EB3C1B LONG REVERB
19
3890
36" PREFAB. CABLE (RED/BLACK)
20
7025A OR 7025B
21
EL34
12AX7 DUAL TRIODE PREAMP TUBE
POWER OUTPUT TUBES
5
14
15
16
PUSH BUTTON CAPS
17
PUSH BUTTON CAPS
18/19
20/21
REVERB CABLE AND UNIT
TUBES
8
9
7
10
11
6
13
12
*NOTE: Replacement grilles are 'Special-Order' and are only available while the model is in production.
‡ Grilles & Support replacements are for CURRENT models only.
SERVICE-QuickGuide-ycv50b-00-1v0.xls
ftp.yorkville.com
YCV50B QuickGuide
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
1
1
2
2
3700
{AWG}
RED W20
R58
1/4W
C34
TO W25
100V
.
3
3
R56
1/4W
R57
1/4W
.
.
5
TO W3
400V
100K
1B
4424
.
R15
1/4W
47K
PRE-AMP
Val
V1:A
R4
1/4W
47K
TO W2
250V
2X_TRIODE_HCT
{Body}
.
100V
5
Alternate
100V
C24
22N
R22
1/4W
100K
400V
R23
1/4W
100K
.
.
.
50V
C71
470P
100V
RING
R3
1/4W
1K5
R112
1/4W
27K
.
C35
220P
P8:A
M TREBLE
C23
47N
4
C37
J1
INPUT
{AWG}
{AWG}
YEL W2 YEL W3
C33
1N
DOWN UP
S6:B
3522
BRIGHT
C16
100N
4
100V
.
R18
1/4W
113K
.
R1
1/4W
113K
K2:B
100V
8
50V
Alternate
C15
22U
3700
.
P6:A
M MID
MINI
3700
7
20K
15A
4423
R5
1/4W
220K
8
2X_TRIODE_HCT
{Body}
.
.
C22
47N
.
7
R20
1/4W
100K
R21
1/4W
100K
P9:A
M CLEAN VOLUME
R19
1/4W
470K
P7:A
M BASS
PRE-AMP
Val
V2:B
.
TO W1
500K
15A
4425
R17
1/4W
1K5
TO W4
6
500K
15A
4425
R16
1/4W
1M
{AWG}
BLK W4
BRIGHT
3522
S6:A
DOWN UP
{AWG}
BLK W1
C1
.
R2
1/4W
1M
6
9
9
K2:A
R11
1/4W
113K
C85
2N2
400V
This part is stuffed ONLY
on M581 (YCV40)
10
.
400V
250V
.
Modern
S1:A
3522
100K
1B
4424
16
Alternate
C20
47N
100V
13
500K
15A
4425
500K
15A
4425
C83
P3:A
M BASS
P5:A
M MASTER
.
14
.
R52
WJ
Modern
S1:B
3522
15
{Body}
.
R53
1/4W
33K
P4:A
M MID
DOWN
Alternate
20K
15A
4423
xxW
C27
R24
1/4W
47K
100V
UP
C21
47N
R12
1/4W
1K5
63V
63V
50V
C31
5254
5209
5273
4834
6126
6126
6145
5206
5233
5209
5422
5234
5201
4840
4834
.
1U
4N7
1N5
47K
220K
220K
249K
1N
330N
4N7
1N
470N
470P
33K
47K
R10
1/4W
120K
5631
5272
5272
4838
4843
4843
4776
5208
5231
5196
5425
5233
5208
4834
4599
12
RAD
.
15
22U
6N8
6N8
100K
470K
470K
113K
2N2
220N
150P
1N8
330N
2N2
47K
WJ
C26
C1
C34
C37
R56
R57
R58
R6
C81
C26
C83
C31
C27
C82
R13
R52
YCV50BLUE
M613
Value/YSpart#
.
YCV40
M581
RefDes Value/YSpart#
R7
1/4W
1K5
14
K1:B
R14
1/4W
100K
P2:A
M TREBLE
R79
1/4W
30K
.
.
R8
1/4W
120K
2X_TRIODE_HCT
{Body}
100V
100V
2X_TRIODE_HCT
{Body}
R9
1/4W
120K
P1:A
M DRIVE
13
R13
1/4W
PRE-AMP
Val
V1:B
250V
PRE-AMP
Val
V2:A
R114
1/4W
100K
200V
C32
470P
.
C81
C18
1N5
11
C19
100N
UP
400V
This part is stuffed ONLY
on M613 (YCV50BLUE)
12
500K
15A
4425
3700
C82
C17
10N
.
C80
1N
400V
11
R6
1/4W
10
DOWN
K1:A
16
Product
YCV40/YCV50BLUE
Input/Pre
PCB# X8004
Date: Wed Oct 08, 2008 Rev: v14.00
Filename: X8004v1400sch.sch2002
17
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
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S
T
Sheet 1 of 6
YsType:
U
17
V
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
1
1
2
2
3
3
4
4
470N
C67
63V
220P
C66
100V
.
C6
22U
.
100K
1/4W
R109
5
R61
1/4W
620R
50V
22U
C56
50V
10K
1/4W
R59
100V
5
6
.
.
U2:A
63V
10K
1/4W
R107
R60
1/4W
620R
22U
C2
100K
1/4W
R38
.
R36
1/4W
100K
50V
NE5532N
.
50V
Gold Gold Gold
-
-
-
J3
PWR-AMP-IN
S
R
3K3
1/4W
R63
U1:A
T
7
.
.
.
10K
R108
22U
C14
C4
22U
PRE-AMP-OUT
J4
22U
C3
100K
1/4W
R39
S
50V
R
1/4W
50V
T
R37
1/4W
100K
C68
100N
7
27K
1/4W
R40
.
NE5532N
6
470P
C65
.
.
100N
C72
63V
8
8
9
R64
47K
.
8
1/4W
9
V+
U2:B
10
16V
V-
U2:C
100U
C9
.
18K
1/4W
R119
NE5532N
2N2
C75
400V
63V
100N
C11
47P
C63
8
NE5532N
V+
.
16V
400V
C30
2N2
J8
6541
50V
U1:C
22U
C12
100K
1B
4424
R71
1/4W
10K
.
U1:B
12
P11:A
REVERB M
C10
22U
.
50V
R69
1/4W
120K
.
R66
1/4W
47R
4
.
18K
1/4W
R70
V-
R65
1/4W
47K
11
.
REVERB SEND
250V
C8
100U
.
12
C64
4N7
1M
1/4W
R72
REVERB RTN
6541
J7
.
R68
1/4W
120K
R67
1/4W
10K
11
R97
1/4W
10K
100V
.
4
50V
4148
4148
C7
22U
D17
D16
10
13
13
14
14
15
15
16
16
Product
YCV40/YCV50BLUE
Loop/Reverb
PCB# X8004
Date: Wed Oct 08, 2008 Rev: v14.00
Filename: X8004v1400sch.sch2002
17
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B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
Sheet 2 of 6
YsType:
U
17
V
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
1
1
These parts are
stuffed ONLY on
M581 (YCV40)
2
X34
X41
X24
X67
R62
1/4W
220K
MINI
X581
2
X581_
3
3
4
4
X66
5
C58
2N2
X65
R51
1/4W
1K5
R76
1/4W
470K
.
.
These parts are
stuffed ONLY on
M613 (YCV50BLUE)
400V
R77
1/4W
270K
.
5
X613
X613_
6
6
7
7
3682
BLU
R87
1/4W
820R
.
S
-
-
-
OUTPUT
J5
8
3682
BLACK
1
OUTPUT XF
W14
R91
2.0W
2R
.
BLK
3
10
BRN
PENTODE
{Body}
R86
1/4W
820R
.
V5:A
Val
OUTPUT
3682
BRN
R90
1.0W
220R
T
R
S
-
-
-
EXTENSION
J6
FLMP
11
XF
W18
.
R49
1/4W
4K7
20K
15A
4423
R
9
T1
{Description}
1327M
.
C51
82N
T
4
MINI
.
{Body}
C50
2X_TRIODE_HCT
22N 400V
V3:B
Val
SPLITTER
63V
11
100V
R42
1/4W
220K
R44
1/4W
100K
.
C48
100N
OUTPUT
W15
Out_XF_CT
W19RED
V2,V3_PL
R46
1/4W
1M
10
3682
GREEN
2
GRN
3682
RED
{AWG}
ORN W41
R47
1/4W
470R
.
BLU
FLMP
MINI
MINI
R43
1/4W
82K
R48
1/4W
10K
1324M
5
R89
1.0W
220R
R41
1/4W
220K
.
9
{Body}
PENTODE
.
R45
1/4W
1M
63V
R92
2.0W
2R
C47
100N
OUTPUT
Val
V4:A
SPLITTER
Val
V3:A
C49
2X_TRIODE_HCT
22N 400V
{Body}
8
XF
W17
12
P10:A
Presence/Master M
12
13
13
PHONE_PLUG
WOOFER
{Description}
SP2
+ to tip +
TO J5
14
YCV40:
7080 12" 8R
80WPGM
15
14
YCV40WR/YCV50BLUE:
7081 12" 8R (Vintage 30)
60WPGM
15
16
16
Product
YCV40/YCV50BLUE
Power Amp
PCB# X8004
Date: Wed Oct 08, 2008 Rev: v14.00
Filename: X8004v1400sch.sch2002
17
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B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
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Sheet 3 of 6
YsType:
U
17
V
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
1
1
3700
R29
1/2W
2K
.
.
4K7
1/4W
R99
R28
1/4W
10K
K1:C
2
LD5
CHNL2
T
R111
1/4W
1K
Mini
10MM
R54
1.0W
1K
250V
D11
.
C52
100N
5
LD2
ON
6398
RED
.
.
36K
1/4W
R113
C44
10U
63V
63V
.
+HI
W28
4007
D8
.
R103
1/4W
470K
.
3682
RED
D12
D9
4007
D4
{Watts}
TO220
.
D10
GRY
4007
R35
100R
3682
GRN
9
10
.
.
D15
R100
2.0W
2R
TO92
D23
{AWG}
GRY W21
to_DC_FIL
11
R101
1/4W
2K2
Q12
5101
.
4148 4148
C54
4N7
.
250V
D6
GRN
8
R33
100R
C84
220N
D5
4007
1.0W
BC550C
FIL
W16
1.0W
3682
GRN
7
GRN
63V
6
25V
BLK
250V
2
C5
100U
XF PRI
W11
C57
100N
3682
BLK
63V
IEC_RECT
10
C55
82U
4007
S
10MM
REF
6731
R104
2.0W
150K
+24V
W12
Q1
7824
+24 RegOUT
D13
10V0
IN
0W5
1N5240BRL
D3
4007
250V
3682
GRY
+24V
W13
10MM
3682
GRY
5
GRY
IRF830
Q8
6730
TO220
+Hi Reg
N
G
C28
220N
T2
Transformer
1324
R110
2.0W
220K
NEUT
W10
4007
.
8
D
R102
1/4W
470R
4007
450V
3682
WHT
C53
22N
Alternate
FUSE
{C_Type}
DOWN UP
S4:B
3522
BOOST
R27
1/4W
2K2
.
5906
RED
.
LD4
BOOST
Alternate
C69
2U2
TO92
63V
.
R34
1/4W
2K2
R32
1/4W
10K
Q7
5101
DOWN UP
S4:A
3522
BOOST
BC550C
TO92
D7
4007
RED
4
C38
470U
Q2
5103
Power
S7
FUSE
F1
275V
.
MPSA06
RED3
XF PRI
W9
1
+HI
W26
BLK
FLMP
R82
1/4W
47R
R83
1/8W
100R0
SPST Switch
3682
RED
R50
1/4W
330K
400V
LINE
3682
W8
BLK
R98
1/4W
330K
.
C46
1N
3682
BLK
8
9
6
7
R25
1/4W
10K
D1
4148
7
Alternate
.
R78
1/4W
K2:C
36K
1/4W
R75
1M
1/4W
R73
C13
10U
4520
Lin
10K
.
R26
1/2W
2K
3700
63V
6
C25
10U
Bias M
P12
STANDBY
3522
4007
R74
1/4W
2K2
5
S3:B
DOWN UP
S3:A
BIAS 75mV ACROSS R91
AND ACROSS R92
LD1
STANDBY
Alternate
R55
2.0W
220K
4
Alternate
6399
YEL
.
DOWN UP
S5:B
3522
CHANNEL
R31
1/4W
10K
TO92
C70
22U
50V
3
BC550C
Q6
5101
DOWN UP
S5:A
3522
CHANNEL
.
TO92
LD3
CHNL1
Q3
5103
LINE_IN
J2
S
Gold Gold Gold
FLMP
.
MPSA06
TO92
4
R
63V
R85
1/4W
47R
C45
100N
R84
1/8W
100R0
5908
GRN
MPSA06
Q11
5103
R30
1/4W
2K2
.
5907
YEL
3
4148
D2
Mini
R88
1.0W
1K
.
2
11
FIL
W27
{AWG}
GRY W38
12
12
R78
R106
18K
10K
4831
4629
15K
15K
FLMP
R95
1/8W
100R0
YCV50BLUE
M613
Value/YSpart#
V4:B
V3:C
V5:B
2X_TRIODE_HCT PENTODE PENTODE
{Voltage}
{Voltage}
{Voltage}
4830
6159
V1:C
2X_TRIODE_HCT
220U
{Voltage}
C29
35V
R93
5.0W
390R
V2:C
2X_TRIODE_HCT
{Voltage}
R106
1/2W
10K
.
R115
1/2W
22K
.
.
13
C39
10U
450V
13
FLMP
YCV40
M581
RefDes Value/YSpart#
R96
1/8W
100R0
DC_FIL
ORN W40
14
C60
10U
C41
10U
450V
450V
to_V2,V3_PL
C40
10U
450V
14
15
15
16
16
Product
YCV40/YCV50BLUE
Switching/Supply
PCB# X8004
Date: Wed Oct 08, 2008 Rev: v14.00
Filename: X8004v1400sch.sch2002
17
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B
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D
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M
N
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P
Q
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S
T
Sheet 4 of 6
YsType:
U
17
V
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
1
1
X8004 Version History
MODEL(S):2
3
4
#
1
2
3
4
5
6
7
8
9
10
11
12
13
DATE
23-APR-2008
.
.
D
D
D
D
D
D
D
D
D
D
M581 PCB HISTORY
MODEL(S):-
YCV40/YCV50BLUE
VER# DESCRIPTION OF CHANGE
14.00 Released for Production
PC7625,M581 R78 27K>18K#4831.M613 R78 18K>15K#4830
PC7649, CHANGE P12 22K #4517 TO 10K #4520
.
D
D
N
V
V
N
N
V
V
N
N
V
N
V
N
V
N
V
V
N
#
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
XC146
X8004 POT LIST
5
6
7
YCV40/YCV50BLUE
MODEL(S):FUNCTION PART# KNOB
AS OF
REF
DRIVE
TREBLE
BASS
MID
MASTER
MID
BASS
TREBLE
CLEAN VOLUME
PRES./MASTER
REVERB
.
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
.
#4425
#4424
#4425
#4423
#4425
#4423
#4425
#4424
#4425
#4423
#4424
.
11/00
11/00
11/00
11/00
11/00
11/00
11/00
11/00
11/00
11/00
11/00
.
#8430
#8430
#8430
#8430
#8430
#8430
#8430
#8430
#8430
#8430
#8430
.
X8004 DRILL HISTORY
MODEL(S):8
9
#
1
2
3
4
5
6
YCV40/YCV50BLUE
VER# DESCRIPTION OF CHANGE
V
N
V
N
V
N
V
N
V
N
V
N
DATE
D
D
D
D
D
D
DATE
NOV/02/00
NOV/08/00
DEC/14/00
FEB/23/01
APR/30/01
.
MAY/25/01
JUN/21/01
NOV/30/01
.
JAN/15/02
MAY/03/02
MAY/27/02
JUN/24/02
JUL/04/02
SEP/03/02
MAR/17/03
MAR/27/03
AUG/25/03
NOV/12/03
DEC/03
OCT-15-2004
.
DEC-02-2004
JUN-15-2005
.
.
.
DEC-14-2005
MAY-18-2006
.
.
.
.
D
D
D
D
D
YCV40
VER# DESCRIPTION OF CHANGE
1.00
FIRST PRODUCTION
.
PC#6305 R63 2K2->3K3 R40 24K->27K
2.00
PC#6311 ADD D16,D17,R97 AT U2
2.10
PC#6326 HOLE SIZE FOR C53 .070"->.047"
3.00
PC#6419 ADD Q12,R103 R50 2M2->680K
.
R100 10R 1W->1R 1/4WFP R101 10R/1W->820R 1/4W
.
PC#6407 R103 680K->1M
4.00
PC#6420 ADD R100 220K 2W ACROSS C55
5.00
PC#6475 R105,R104-Q9 REPLACED BY D15,D18,D19,D20
D21,D22 6X 51V ZENER C60 220N->10u 450V
.
6.00
NEW SOLDERMASK FOR TABS & RCA JACKS
6.10
ADD ROUTING BY OUTPUT TUBES
6.20
PC#6537 R71 2K2->3K3 P11 20KA->100K
6.30
PC#6539 R106 100K->47K
7.00
PC#6545 MOVE X57 AND C60
7.10
PC#6562 R106 47K->100K D15->J76
8.00
MOVE AC TABS APART FOR CE COMPLIANCE
9.00
MOVE BREAKAWAY PCB'S TO AID ASSEMBLY
10.00 PC#6624 UPDATE 9 PIN TUBE SOCKETS
10.01 TRACE ARTWORK FIXED MANUALLY
11.00 CONVERT TO PCAD 2002
.
GT:PC#6744 & 6748: APPLIED YCV50 STANDBY
.
CHANGES (SEE YCV50 V2.00 SCHEMATIC FOR DETAILS)
.
GT:PC#6776 MOVED TOP MULTIPLE TO ADD ZIPPER
12.00 AH, PC#6866, ADD CONNECTION PREAMP-STANDBY
.
#6933, CHANGE R78 TO 27K AND ADD TRIM POT 10K
.
PC#6965, MOVE ARC TRACE AWAY FROM TUBES
.
PC#6967, INCREASE CLEARANCES NEAR OUTPUT TUBES
12.01 PC#7053:GT:R53 4850 3K9 -> 4864 2K7
13.00 PC#7125:GT:J7&J8 #3914 RCA JACK->#6541. PC#7091
.
ENLARGE HOLES FOR S3-S6 #3522 FOR KINK LEADS
.
MOVE C3 FOR DEPT -59 FOR COLLISION AVOIDANCE
.
MOVED W8 TRACE AWAY FROM SCREW HOLE, MOVED
.
XC50 BREAKAWAY DOWN IN LINE WITH XC54
V
N
V
N
V
N
V
N
V
N
2
3
4
5
6
7
8
9
X8004 PENDING CHANGES
MODEL(S):10
11
#
1
2
3
4
5
6
YCV40/YCV50BLUE
PENDING CHANGE
X
X
X
X
X
X
PC#
PC
PC
PC
PC
PC
PC
10
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
11
12
12
13
13
14
14
IRF830
15
MPSA06
BC550C
EBC
TO-92
C B E
TO-92
15
16
16
"STYLE_P32"
G D S
TO-220
Product
3700_DRW
YCV40/YCV50BLUE
DRW/Tables
PCB# X8004
Date: Wed Oct 08, 2008 Rev: v14.00
Filename: X8004v1400sch.sch2002
17
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
Sheet 5 of 6
YsType:
U
17
V
Pcb Mech X8004v14.00
VCD
LONG AXIS
ORIGIN
SEE LAYOUT DOCUMENTATION
R72
R68
R71
2N2
120K
R55
220K
2.0W
R70
ON RED
YEL
STANDBY
47P
C63
1M
120K
10K
NE5532N
R119
100N
18K
R69
6541
REVERB RTN
W30
50V
22U C2
D4
4007
D3
4007
D5
XF PRI W11
BLK
Top Assy X8004v14.00
BLK
GRN
W14
4007
OUTPUT XF
TO W29
W6
GRN
W7
TO W24
R60
620R
PRE-AMP-OUT J4
10K
R107
10K
R108
GRN
GND
W36
X8004
v14.00
(M581/M613) 3 /5
BLK
-
7
-
-
-
7
-
J5 OUTPUT
J3 PWR-AMP-IN
J2
X57
BLK
7
Gold
J6 EXTENSION
TO W6
W29
4007
C54 4N7 T
R
6451 250V V
D6
Gold
7
WHTW10
NEUT
BLK
-
X8004 v14.00
(M581/M613) 4 /5
W9 BLK
XF PRI
W16
GRN
FIL
LINE_IN
3674
OUTPUT
5902
RT
V
W8
LINE
Gold
W15
RT
V
C53 6435
275V T
22N R V
+HI
RED
W28
2.0W
220K
R110
FIL
GRN
W27
D7
D8
4007
Gold
Gold
W13 W12
+24V +24V
GRY GRY
4007
+HI
RED
W26
D10
4007
C55
R115
D9
5621
C38
D11
S3 WHT
3522
Gold
5865
100N
4007
470U
63V
C13
4007
C44
450V
10U
10U
450V
TO W20
W25
450V
10U
ORN
W40
10U
63V
C40
5959
X38
X64
5959
C60
10U
450V
15K
1.0W
RED
22K
1/2W
to_V2,V3_PL
R113
R75
63V
10U
C39
5959
C29
5945
R106
X39
X36
X35
150K
2.0W
X43
X42
1.0W
100R
R33
1.0W
100R
W24
TO W7
220U
35V
Q1
to_DC_FIL
2R
2.0W
C5
R35
D13
Q8 100U
25V
GRY
R104
W21
6731
7824
+24 Reg
TO220
R100
Q12
BC550C
D12
2K2
R101
R102
470R
10V0
4007
R98
330K
470K
2 /5
4148
4148
D15
D23
C28
6730
IRF830
+Hi Reg
X37
10K
R103
220K
15K
330K
R50
R74
GRN
36K
36K
450V
82U
1M
5959
C41
3610
X60
R78
W23
3674
LD2
6398
STANDBY
X33
X32
W5
C52
R73
18K
27K
R59
6541
REVERB SEND
R61
R49
X27
100N
620R
82N
4K7
X30
X55
470R
1M
10K
R47
R45
10K
R63
3K3
Master
X29
X28
22U
50V
C7
R48
R40
R38
R39
C65
470P
100K
100K
X26
C72
100N
4N7
4148
D17
D16
4148
R64
47K
R66
47R
10K
R97
R67
10K
NE5532N
100N
100K
R109
X54
1M
R46
100N
R114
C66 220P
R36
100K
100K
X56
470N
C67
X53
82K
400V
22N
3522
22U
50V
R43
C49
X22
X23
X21
C24
R37
X52
C15
R12
C27
X51
X15
100K
C82
470P
X14
1N
120K
470N
1K5
R16
3522
1M
1N5
X16
CHANNEL
47K
220K
Q6
C31
R10
R9
120K
22N
400V
100N
R56
R57
2K2
10K
10K
X61
R8
X20
47N
47N
X17
X18
R30
R31
R28
1N
X19
47K
R15
R85
47R
1/2W
2K
X31
33K
R41
X44
220K
R42
C25
XC148
Z352
2N2
J7
7
P12
v14.00
R87
R91
R86
820R
820R
2R
2.0W
R92
2R
2.0W
X46
120K
249K
R32
R82
R27
X59
100R0
R96
100R0
R95
R93
5.0W
390R
220R
1.0W
R29
R88
X13
1K
1.0W
C70
R6
Q3
MPSA06
MPSA06
50V
22U
BC550C
10K
47R
2K2
1N
C81
R90
X47
R89
Val
3733
X48
SHORT AXIS
220R
1.0W
X45
RING
W17
W19
RED
R53
X12
X9
X11
1/2W
2K
R25
10K
X10
D2
C69
47N
47N
C32
470P
MPSA06
33K
113K
R13
R1
330N
1N
C71
100K
470P
X49
X6
5865
100N
C16
R7
1K5
100N
R83
X40
X8
R20
R23
R2
R4
YEL
BLK
4148
100R0
27K
100K
R24
47K
100K
X7
X4
220K
R5
R3
1K5
1M
47K
X5
R112
R22
R52
C83
47K
4N7
3700 K2
X3
R19
470K
1N
WHT 3522
CR
NCR
Alternate
J1 INPUT
Alternate
NOR
CL
NCL
3921
RCA
Alternate
NOL
INSERT
3674
P11
REVERB
RCA
3610
CLINCH
ORIGIN
J8
1.0W
1K
X62
4424
C30
C6
R54
Val
470K
R76
G3
Alternate
C48
C58
2N2
270K
C47
G2
C50
400V
22N
100K
X25
R77
X65
C51
G1
3674
C56
1B
C75
22U
50V
LD1
6399
100K
G3
3732
P10
X66
C12
C10
22U
50V
G2
1N5
SPLITTER
R51
1K5
C18
63V
10U
YCV40
C84
R11
Val
4423
50V
22U
22U
50V
50V
22U
G1
CR
NCR
220N
250V
113K
Bias
M581
220N
250V
5865
X63
3610 W34
2K2
M613 X613
YCV50BLUE
5882
ORN
15A
P6
C11
20K
4423
MID
V3
P7
113K
V2,V3_PL
W41
R44
C14
C8
15A
4425
BASS
22U
50V
U1
Alternate
NOR
5882
CL
V5
OUTPUT
NCL
RT
V
NOL
Out_XF_CT
W39
NCR
3733
Val
V4
OUTPUT
NCL
XF BRN
S6
R18
1K5
R17
C19
100N
V2
NCR
2N2
C85
C37
3732
NCL
TO W25
W20
S5
WHT
WHT
BRIGHT
C35
220P
47K
20K
C3
100U
16V
SIG
R111
RED
100K
4424
P8
PRE-AMP
X50
R65
15A
C9
100U
16V
SIG
W35
3522
WHT
1K
X58
P9
R21
C4
500K
C64
NCR
S1
BC550C
4425
LOC
1B
C68
U2
NCL
X
RT
V
XF BLU
MID
CR
E
BLK
TO W4
P4
NOR
EE
V
GND
W18
30K
100K
15A
C57
R58
CL
2K2
R79
TREBLE
500K
220K
NOL
2U2
63V
CLEAN VOLUME
CR
Q11
C34
4N7
22U
50V
BEC
NOR
Q7
4423
1 /5
CL
DC_FIL
W38
BASS
15A
LD5
GRN
NOL
Val
P3
C33 C22 C23
X613_
CR
TO W1
W4
C26
GRY
4425
R99
4K7
M581
YCV50BLUE M613
v14.00
NOR
W3
Q2
R34
C46
YCV40
5908
CHNL2
BlankSize - 18600x12800
CL
SL
YEL
V1
3732
W1
TO W3
C21
20K
StepAndRepeat - X1@0.000Y2@6.400
NOL
TREBLE
PRE-AMP
TO W2
RING-SW
TIP
GRN
P2
MASTER
v14.00
X8004
(M581/M613) 5 /5
W2 W37
RELAY 2C
C1
1U
50V
500K
R26
S4
BOOST
C45
15A
C20
4424
R14
100K
NO
P5
100R0
R84
1B
NC
NO
DRIVE
TIP-SW
100K
4425
P1
3700
500K
NC
4425
K1
15A
RELAY 2C
X2
C80
-
15A
LD3
CHNL1
YEL
C
C
500K
5907
+
D1
-
+
LD4
RED
BOOST
4148
BlankSize - 18600x12800
-
5906
Into Wave
v14.00
+
YCV50BLUE M613
YCV50BLUE M613
SEE LAYOUT DIAGRAM
v14.00
X8004 Version History
MODEL(S):#
1
2
3
4
5
6
7
8
9
10
11
12
13
DATE
23-APR-2008
.
.
D
D
D
D
D
D
D
D
D
D
X8004 DRILL HISTORY
MODEL(S):-
YCV40/YCV50BLUE
VER# DESCRIPTION OF CHANGE
14.00 Released for Production
PC7625,M581 R78 27K>18K#4831.M613 R78 18K>15K#4830
.
.
PC7649, CHANGE P12 22K #4517 TO 10K #4520
D
D
V
N
N
V
V
N
V
N
N
V
V
N
V
N
N
V
V
N
#
1
2
3
4
5
6
YCV40/YCV50BLUE
VER# DESCRIPTION OF CHANGE
V
N
V
N
V
N
V
N
V
N
V
N
X8004 PENDING CHANGES
DATE
D
D
D
D
D
D
MODEL(S):#
1
2
3
4
5
6
YCV40/YCV50BLUE
PENDING CHANGE
X
X
X
X
X
X
PC#
PC
PC
PC
PC
PC
PC
*PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY
X8004 POT LIST
YCV40/YCV50BLUE
MODEL(S):REF
FUNCTION PART# KNOB
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
.
DRIVE
TREBLE
BASS
MID
MASTER
MID
BASS
TREBLE
CLEAN VOLUME
PRES./MASTER
REVERB
.
#4425
#4424
#4425
#4423
#4425
#4423
#4425
#4424
#4425
#4423
#4424
.
LEAD/PIN REFERENCE
IRF830
G2
MPSA06
BC550C
G1
4
H
H
5
4
5
1P
6
1
P 3
6
NC 2K 3
7
H 2
7
H
8
+V
1G
8
7
B
1
8
NC
G D S
TO-220
EBC
TO-92
C B E
TO-92
6L6GB
K
G3
2G 2
1
2P
1K
3
4
9
HT
12AX7A
COM1 COM2
A
2
NC1
NC2
NO1
NO2
6
-V
5
NE5532N
3700_DRW
"STYLE_P32"
SEE PRODUCTION NOTES
#8430
#8430
#8430
#8430
#8430
#8430
#8430
#8430
#8430
#8430
#8430
.
AS OF
11/00
11/00
11/00
11/00
11/00
11/00
11/00
11/00
11/00
11/00
11/00
.
SEE LAYOUT DOCUMENTATION
PRODUCTION NOTES
1. RTV MUST BE ADDED TO THE FOLLOWING CAPS 6. BEND C69 OVER Q7 AS FAR AS POSSIBLE BEFORE
ADDING RTV
C1,C16,C19,C17,C70 BETWEEN C84,C28,C60,C15
BETWEEN C49,C50, ADDED TO C15,C7,C8,C3,C9
7. PCBSA: BREAK OUT BOARD BEFORE TESTING
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
5. BIAS 350mV ACROSS R91 AND 350mV
ACROSS R92
Z352-MTG
3796 on this
device only.
Lots of goop
on the thermistor.
Z352
2 of 8701
2 of 3850
2 of 8832
- to hold z352 in place
PCB
2 of 8741
1
2
3
4
5
6
7
8
9
10
12
13
14
11
15
17
16
19
18
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:
SERVIC
EBULLET
INYCV50m613_U
pdate_f
or_V2.1
0_PC68
65
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:
WC 10
BR OWN
BROWN
WC 13
B LU E
BLUE
C 53
250VAC
EYE6
680N
GR E E N
O U T P UT -T U B E
6L6B
#3638
WC 5
WC 9
GR N
RED
TO E YE 6
RE D
RE D
JB5
GR N
EY2
WC 14
EY4
WC 15
F
JB6
F
RED
6L6B
WC 12
F
WC 6
F
WC 3
GR N
C 41
WC 1
O U T P UT -T U B E
RED
GRE EN
GR EE N
WC 2
WC 4
EY9
EYE5
BLK
BLK
T O OUT P UT
T R A NS F O R ME R
T O OUT P UT
T R A NS F O R ME R
GREEN
B LAC K
E X T E N S IO N
O UTP UT
TO EY5
G rn/Y el wire
soldered to ground lug
1324E
Y C V 5 0C E
E X P OR T AC
W IR IN G
April 14/05
By G.K
1324M
TO _E Y7
EYE8
IN P U T
F
WHIT E
B L U NE E U T R A L
BROWN
LIVE
B LA C K B LA CK
RED
RED
BLK
WC 7
V4
TO EY4
GR AY
EYE7
TO _E Y8
G R E EN
Y E L LO W
W H IT E
RED
JB1
WC 11
GR AY
+ 2 4 V WC 8
S UPPLY
B LA C K
RED
T O E Y E 9 ME T A L _ B A C K
G RAY
G R AY