Download SERVICE MANUAL TRAYNOR YCS50H

SERVICE MANUAL
MODEL TYPE: YS1064
TRAYNOR YCS50H
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-YCS50H-00-1v3.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
YCS50H Parts List 5/4/2010
YS #
5906
5907
5908
6397
6398
6399
6438
6825
6888
6437
6450
6461
6871
6872
5101
5102
5103
5104
5108
5119
5122
6882
5197
5199
5277
5408
5194
5201
5206
5208
5275
5422
5816
5204
5209
5222
5223
5224
5272
5834
5841
6451
5212
5226
5229
5233
5865
5882
5254
5257
5266
5282
5629
5631
5958
5959
5961
5267
5618
5879
6574
5635
4417
4423
4424
4425
4520
3976
6563
8522
8570
3467
3478
3489
3601
3450
3498
3921
3888
3890
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
HER508 1000V 3A0 DIODE ULTRAFAS
1N5237B 8V2 0W5 ZENER 5% T&R
1N5242B 12V0 0W5 ZENER 5% T&R
1N5240BRL 10V0 0W5 ZENER 5% T&R
MC7915CT TO220 N 15V0 REG V2
MC7815CT TO220 P 15V0 REG V1
BC550C
TO92 NPN TRAN T&R TB
BC560C
TO92 PNP TRAN T&R TB
MPSA06
TO92 NPN TRAN T&R TA
MPSA56
TO92 PNP TRAN T&R TA
2N5401
TO92 PNP TRAN T&R TA
2N5638
TO92 NCH JFET T&R TC
J109
TO92 NCH JFET T&R TC
TL072CP IC FET DUAL OP AMP
220P 100V 2%CAP T&R RAD CER.2NPO
100P 100V 2%CAP T&R RAD CER.2NPO
220P 200V 5%CAP T&R RAD CER.2NPO
_47P 100V 10%CAP T&R BEAD
NPO
470P 1000V 10%CAP T&R RAD CER.2Y5P
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
__3N3 100V 5%CAP T&R RAD .2FLM
__1N 50V 10%CAP T&R BEAD
NPO
680P 100V 5%CAP T&R RAD CER.2NPO
_10N 100V 10%CAP T&R RAD .2FLM
__4N7 250V 5%CAP T&R RAD .2FLM
_33N 100V 10%CAP T&R RAD .2FLM
_39N 100V 10%CAP T&R RAD .2FLM
_47N 100V 10%CAP T&R RAD .2FLM
__6N8 100V 5%CAP T&R RAD .2FLM
_10N 250V 20%CAP BLK RAD POLY FLM
_47N 250V 10%CAP RAD POLYFILM BULK
__4N7 250V 20%CAP BLK 'Y' 10MM AC
100N 63V 5%CAP T&R RAD .2FLM
_68N 100V 5%CAP T&R RAD .2FLM
150N 63V 10%CAP T&R RAD .2FLM
330N 63V 5%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
680N 250V 20%CAP BLK 'X2' 30MM AC
_10U 16V 20%CAP T&R 5X7MM .2NP
_10U 160V 20%CAP BLK 10X13MM EL
_22U 50V 20%CAP T&R 6X7MM .2EL
_22U 350V 20%CAP BLK 13X25 EL
_10U 450V 20%CAP BLK
EL
_33U 16V 20%CAP T&R RAD .2
100U 25V 20%CAP T&R RAD .2EL
470U 25V 20%CAP BLK 10X15MM EL
100U 16V 20%CAP T&R 8X7MM .2EL
330U 350V 20%CAP BLK 25X50 EL
1000U 35V 20%CAP BLK RADIAL ELECT
_10K 5B LIN 9MM HORIZONTAL P28
_20K 15AAUDIO 9MM
P32
100K 1B LIN 9MM
P32
500K 15AAUDIO 9MM
P32
_10K
TRIM POT
SNAP ON 0.843" INSULATING BUSHING
___5H CHOKE
100MA
RUBBER BUMPER WITH WASHER -SMALLCORNER,2 LEGS NOTCED BLACK POWDER C
CLIP 205X032 14-16AWG DISC/INSUL
CLIP 205/187X032 18-22AWG DISCO/INS
CLIP 250X032 18-22AWG DISCO/INSL
RING TERMINAL 16AWG WIRE & #8 SCREW
1/4" JCK PCB MT ALL-GOLD SKT
1/4" JCK PCB MT HORZ
1/4" JCK PCB MT VERT STER RT SWT
12"RCA SINGLE CABLE 0'/90' BLACK
36"RCA DUAL CABLE 0'/90' RED/WHITE
Qty.
1
1
1
1
1
1
5
18
5
1
2
1
1
1
5
4
4
1
1
4
1
7
8
2
1
1
2
1
9
6
3
4
1
5
2
1
2
2
2
2
1
1
18
1
2
5
2
2
2
2
1
1
1
11
6
3
9
2
1
1
2
3
1
8
2
8
1
3
1
4
8
2
3
4
1
3
5
1
1
1
YS #
6541
3923
3451
2472
TFS-2B
8451
3692
8889
3438
3803
3810
3538
8430
8438
8633
3428
8268
YCSPOP
8800
9931
8604
8683
8890
9977
8797
4599
4703
4612
4709
4816
4817
2019
4735
4852
4857
4821
4871
5019
4822
4823
4913
4585
4824
5005
4631
4705
4847
6104
4714
4826
4850
4681
4827
4863
4829
5031
6116
4830
4831
4832
4902
4840
4868
4634
4834
4835
4848
4586
4837
4772
4838
6120
4776
4851
4976
4790
4839
4841
6145
4843
Description
RCA SNGL PCB MT HORZ K901
XLR MALE PCB MT HORZ MTHOLE-V SNAP
EYELET SMALL 0.089 OD PLATED
T3,15A GDA BUSSMANN 5X20MM FUSE
TRAYNOR DUAL FOOTSWCH 10' CORD-BULK
10" STRAP HANDLE,BLACK METAL ENDCAP
HEATSINK THERMALOY 6079-PB
RUBBER GROMMET #2183-034-BLK
IEC PWR SOC W/.205TAB &FUSE 10A250V
NYLON SECUR-A-TACH MINI PLASTIC TIE
4" NYLON CABLE TIE
24 PIN BREAKAWAY LOCK .156
KNOB CHICKEN-BEAK
YCS SERIES B-BEAK KNOB 180 DEG
KNOB ROUND PUSHBUTTON 1/4" BLACK
8' 3/18 SJT AC LINE CORD REMOVABLE
TRAYNOR LOGO PLASTIC NICKEL PLATING
YCS POINT OF PURCHASE CARD
6-32 KEPS NUT ZINC
6-32 NYLON INSERT LOCK NUT
10-32 T NUT
1/4-20 NYLON INSERT NUT ZINC
1/4-20 CAGE NUT C79-88142027
5/16-18 NYLON INSERT LOK NUT ZN CLR
5/16-18 KEPS NUT JS500
22AWG SOLID SC WIR
T&R JMP
2.0W 2R 5%
T&R RES
1/2W 18R 5%
T&R RES
5.0W 22R 5%
BLK RES
1/4W 33R 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
1/4W 100R 5%
T&R RES
1/4W 220R 5%
T&R RES
1/4W 470R 5%
T&R RES
1/4W 560R 5%
T&R RES
1/4W 620R 5%MINI
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 1K2 5%MINI
T&R RES
1/4W 1K5 5%
T&R RES
2.0W 1K8 5%
T&R RES
1/2W 2K 5%
T&R RES
2.0W 2K2 5%
BLK RES
1/4W 2K2 5%
T&R RES
1/4W 2K2 5%MINI
T&R RES
1/4W 2K21 1%
T&R RES
1/4W 3K3 5%
T&R RES
1/4W 3K9 5%
T&R RES
1.0W 4K7 5%
T&R RES
1/4W 4K7 5%
T&R RES
1/4W 8K2 5%
T&R RES
1/4W 10K 5%
T&R RES
1.0W 10K0 5%
T&R RES
1/4W 10K0 1%MINI MF
T&R RES
1/4W 15K 5%
T&R RES
1/4W 18K 5%
T&R RES
1/4W 22K 5%
T&R RES
1/4W 24K 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 56K 5%
T&R RES
1/4W 62K 5%
T&R RES
1/4W 82K 5%MINI
T&R RES
1/4W 82K 5%
T&R RES
1/4W 82K5 1%
T&R RES
1/4W 100K 5%
T&R RES
1/4W 100K 5%MINI
T&R RES
1/4W 113K 1%
T&R RES
1/4W 120K 5%
T&R RES
1/4W 120K 5% MINI
T&R RES
2.0W 150K 5%10MM BODY T&R RES
1/4W 150K 5%
T&R RES
1/4W 220K 5%
T&R RES
1/4W 249K 1%MINI
T&R RES
1/4W 470K 5%
T&R RES
Qty.
4
1
19
1
1
1
2
4
1
1
8
1.152
18
1
8
1
1
1
1
4
2
1
8
1
2
77
2
1
1
1
4
2
2
1
2
2
1
6
3
5
1
1
1
2
1
2
2
3
1
1
1
2
13
3
19
2
8
2
1
7
3
5
1
2
11
1
1
1
3
2
8
7
2
2
2
2
1
13
5
9
YS #
4844
4845
6615
6616
3696
3700
3537
8842
8871
8808
8799
8832
8801
8829
8755
8828
8809
8753
8756
8727
8843
8926
8770
3752
3833
8657
2355
2335
3865
8482
8488
8818
8817
3440
3424
3522
3554
6544
3698
3682
3731
3732
3984
12AX7
EL34EH
1403
CH1335M
CH1335U
2337
2327
2343
2328
2358
3043
3044
3042
3061
Description
1/4W 1M 5%
T&R RES
1/4W 2M2 5%
T&R RES
13.0" 8C-22AWG RIBBON CABLE .156"
_6.0" 9C-22AWG RIBBON CABLE .156"
RELAY 1C 02AMP DC24 006MA PC-S
RELAY 2C 01AMP DC24 015MA PC-S
ACC# 4EB3C1B LONG REVERB
#4 X 5/16 PAN QUAD TYPE A JS500 BLK
4-40 X 5/8 PAN PH MS JS500
4-40 X 3/4 FLAT PHIL MS B.O.& WAX
#6 X 1/4 PAN PH TYPE B 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#C HEA
#6 X 5/8 PAN QUAD TY A JS500 BLACK
6-32 X 3/4 PAN PH TAPTITE JS500
10-32 X 1/4 PAN PH TAPTITE JS500
#10 X 1/2 PAN QUAD TY A JS500 BLACK
#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
5/16-18X3 CARRIAGE BOLT ZINC
1/4-20 X 1 5/16 TRUSS PH MS JS500
SNAP IN 1/4 SPACER RICHCO
8 X 3/8 (250 OD,.171 ID)NY SPACER
6-32 X 3/8" HEX SPACER ALUMINUM
NYLON STANDOFF NUT #4 375MIL
NYLON STANDOFF NUT #4 500MIL
1/2 PLASTIC HEX SPACER #6
3/8 1D FLAT WASHER
3/8 INT TOOTH LOCKWASHE ZINC
3/4 OD X 3/8 ID X .080 THICK WASHER
#10 FLAT WASHER FOR 3/16" BOLT
4PDT MINI VERT ALT SWITCH
DPDT SLID SW PCMT H GOLD CONTACTS
DPDT MINI PC VERT SNP ALT
DPST TOGGLE SW QUICK .250" 4 TERM
DPDT TOGGLE SW QUICK .250" 6 TERM
SPST ROKR SW QUIK 180" AC PWR BL/BL
250 MALE PCB TAB REEL
SPRING RETAINER FOR OUTPUT TUBE
9 PIN PC MOUNT TUBE SOCKET BE
8 PIN PC MOUNT TUBE SOCKET BE
12AX7 DUAL TRIODE PREAMP TUBE
EL34 PENTODE OUTPUT TUBE
YCS100H TOROID COVER VR 122 X 65
YCS50/50H OUTPUT
XFMR
100-240VAC 60-50HZ YCS50/50H T'RD
4 CIR XH-HEADER
0.098IN
6 CIR XH-HEADER
0.098IN
6 CIR XH-HEADER RA
0.098IN
8 CIR XH-HEADER
0.098IN
9 CIR XH-HEADER
0.098IN
PATCH 04 22AWG 08.0 XH FLAT
PATCH 06 22AWG 07.0 XH FLAT
PATCH 08 22AWG 13.0 XH FLAT
PATCH 09 22AWG 10.0 XH FLAT
Qty.
6
4
1
1
2
1
1
2
6
11
2
17
2
19
14
4
2
16
4
4
2
2
8
2
4
6
6
11
11
1
1
4
12
1
1
7
1
1
1
28
2
3
2
3
2
2
1
1
2
1
1
4
4
1
1
2
2
MODEL TYPE: YS1064
YCS50H
MODEL TYPE: YS1067
Block Diagram for YCS50/50H/YCS90
YCS50H Tube Configuration
DESIGNED AND MANUFACTURED BY YORKVILLE SOUND
SPLITTER
PREAMP
12AX7
12AX7
12AX7
V3
V2
V1
Effects Send
U.S.A. Tone
POWER
Treble/Mid/Bass
EL34
Ch. 2
Gain
DISCONNECT POWER WHEN
REPLACING TUBES
EL34
V5
DÉBRANCHÉ L’APPAREIL AVANT
DE REMPLACER LES LAMPES
V4
Ch. 1
Preamp
V1:A
YCS50
Effects Return
YCS50 Tube Configuration
SPLITTER
BRIT
Ch. 2
Tone
Ch. 2
Gain
Treble/Mid/Bass
PREAMP
12AX7
12AX7
12AX7
V3
V2
V1
D.I. Out
Preamp
V1:A
POWER
+
5881
V5
Dyna-Sound
Speaker Emulator
DISCONNECT POWER WHEN
REPLACING TUBES
5881
DÉBRANCHÉ L’APPAREIL AVANT
DE REMPLACER LES LAMPES
V4
Pre-Amp Out
YCS50 Speaker Configuration
12-inch Speaker
YS#7081
Pre-Amp In
Boost
-
Input
Ch. 2
Volume
BRIT/U.S.A.
Select
Mono 1/4-inch
Preamp
V1:B
+
U1
B
Expander
Reverb
Rtn
Ch. 2
+
Reverb
Drive
Reverb
Ch. 1
0 dB
Boost
Level
-
8-ohms
Accutronics ©
4EBC1B
U2
B
YCS90
YCS90 Tube Configuration
SPLITTER
Voice
Channel
Select
Channel
Select
K1
EQ
K1
Preamp
V2:B
Ch. 1
Volume
Preamp
V2:A
Modern
Power
Amp
Scoop
Treble/Bass/Mid
Ch. 1
Gain
External
Speaker Out
Splitter
V3
-
Master
Volume
12AX7
12AX7
12AX7
DÉBRANCHÉ L’APPAREIL AVANT
DE REMPLACER LES LAMPES
V3
V2
V1
5881
5881
POWER
5881
V7
+
V4 V6
V5 V7
Internal
Speaker Out
5881
V6
V5
EFX RVB Footswitch
Channel Select
Reverb
12-inch Speakers
YS#7083
Boost
Effects
Presence Resonance
V4
YCS90 Speaker Configuration
16-ohms
-
Ch. Select /Boost Footswitch
PREAMP
DISCONNECT POWER WHEN
REPLACING TUBES
+
+
16-ohms
+
BLOCK-DIAG-ycs50-ycs90-00-1v2.ai
A
B
C
D
E
F
G
H
I
J
K
1
1
3682
BLU
+PLATE
W12
TP2
2
R136
1/4W
820R
250V
2.0W
1K8
To_PreAmp
1
.
EL34
PENTODE
.
R143
249K
W30:B 8
3
TP5
W30:C 8
R133
2R
.
2.0W
W30:D 8
W30:E 8
R134
2R
W30:F 8
.
1/4W
W30:G 8
4
C67
10N
R144
249K
W30:H 8
2
3
4
5
6
7
8
3
3682
RED
OutCT
W14
PENTODE
EL34
.
R138
1/4W
820R
250V
To_PowerSupply
1
W29:A 9
2
9 W29:B
3
9 W29:C
4
W29:D 9
5
W29:E 9
6
9 W29:F
7
9 W29:G
8
W29:H 9
9
W29:I 9
W30:A 8
.
2.0W
1/4W
C65
10N
2
Val
V5:A R149
4
R142
2.0W
V4:A 1K8
.
Val
.
TP4
3682
BRN
-PLATE
W13
R50
1/4W
820R
.
1N5237B
D36
8V2
0W5
6
.
100U
C76
16V
R258
220K
R257
220K
3682
GRN
.
FIL
W10
Bias
M
10K P28
Lin 4520
D31
2N5401
Q24
5108
C77
10U
160V
4148
R260
1/4W
18K
TO92
.
R140
1/8W
100R0
FLMP
R259
1/4W
10K
R141
1/8W
100R0
.
R49
1/4W
33K
1/4W
5
1/4W
5
3682
GRN
FIL
W11
V5:B
PENTODE
{Voltage}
FLMP
V4:B
PENTODE
{Voltage}
6
.
7
7
M1292.PCB_DATABASE_HISTORY
MODEL(S):#
1
2
3
4
5
6
7
8
9
10
11
12
13
8
DATE
19-JUN-2007
11-FEB-2008
14-APR-2008
19-JAN-2010
14-MAY-2010
D
D
D
D
D
D
D
D
YCS50 Output
VER# DESCRIPTION OF CHANGE
1.00
FIRST DESIGN
1.01
REVISION PER PC7456
1.02
CHANGE VALUE OF R49 TO 33K PER PC7535
2.00
PC7931: Add another clinch origin for upper boards
V03
PC8102: Add clearance for lower half panel
GG
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
8
Product
YCS50 Output
Power Amp
9
PCB# M1292
Date: Fri May 14, 2010 Rev:V03
Filename: M1292V03sch.sch2002
A
B
C
D
E
F
G
H
I
J
Sheet 1 of 1
YsType:.
K
9
V5
TP5
V4
-PLATE
3984
Val
249K
249K
10K
4148
D31
820R
BLU W12
C77
R260
R49
2N5401
RT
V
+PLATE
LONG AXIS
R142
RT
V
W14
OutCT
RED
2.0W
1K8
R138
R144
R143
220K
R257
X13
R149
1K8
2.0W
RT
V
820R
R136
To_PreAmp
3538
3538
R50 To_PowerSupply
Val
C67
10N
5834
BRN
P28
10K
18K
33K
820R
3984
Bias
R141
100R0
100R0
R140
C76
INSERT
ORIGIN
YCS50 Output
V03
R258
220K
M1292
583
4 10N
C6
5
R259
W13
10U
160V
Q24
VCD
W30
SCORE
SCORE
ORIGIN
CLINCH
SCORE
SEE LAYOUT DOCUMENTATION
SCORE
W29
TP2
R134
R133
TP4
X3
X2
FIL
GRN
W11
FIL GRN
W10
2R
2.0W
2R
2.0W
100U
16V
D36
8V2
SHORT AXIS
BlankSize - 16000x12800
StepAndRepeat - [email protected]@6.4
SEE LAYOUT DIAGRAM
M1292.PCB_DATABASE_HISTORY
MODEL(S):#
1
2
3
4
5
6
7
8
9
10
11
12
13
DATE
19-JUN-2007
11-FEB-2008
14-APR-2008
19-JAN-2010
14-MAY-2010
D
D
D
D
D
D
D
D
YCS50 Output
VER# DESCRIPTION OF CHANGE
1.00
FIRST DESIGN
1.01
REVISION PER PC7456
1.02
CHANGE VALUE OF R49 TO 33K PER PC7535
PC7931: Add another clinch origin for upper boards
2.00
V03
PC8102: Add clearance for lower half panel
GG
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
M1292 PRODUCTION NOTES
1. APPLY RTV TO C65 AND C67.
2. BREAK ALONG THE LINE SPECIFIED ON THE BOARD BEFORE CLINCHING
SPARATELY THE TWO HALF BOARDS
B
C
D
F
G
H
I
J
K
L
GND
2
250V
2
R140
1/4W
47K
K3:A
RING
.
1/4W
1/4W
1N
R6
1K
C8
63V
.
C99
1N
To_IG
W8
.
.
100V
C98
10N
UP
UP
DOWN
N142
OD_GR
1
W14:A 8
GND
GND
R170
22K
LVGND
MINI
C103
1N
P15:A
M TREBLE
.
100V
C106
10N
400V
.
113K
R14
PGRID
8
NGRID
_W4
4
NET356
1N
C2
400V
SPLITTER
7
W14:H 8
-FDBK
+200V
+225V
6
W14:G 8
3
GND
5
W14:F 8
XF_P1
LOW+
4
W14:E 8
STANDBY
FIL-
3
W14:D 8
OD_OUT_PL
.
STANDBY
2
W14:B 8
SPLIT_IN
R164
1/4W
100K
100K
1B
4424
R162
1/4W
150K
GND
.
+15V
8
R161
47K
CLN_GR
FIL-
R32
220K
.
R8
1K5
C10
.
.
8
W29:D
8
V+
MINI
R144
1/4W
47K
P14:A
M CL VOLUME
R146
1/4W
120K
3N3
C89
100V
R149
1/4W
1M
.
5
.
U7:A
Contour
3522
S9:B
DOWN UP
500K
15A
4425
-15V
Alternate
.
R125
220K
.
R127
100K
PC#7535
REMOVE C10
GND
R142
1/4W
100K
MINI
500K
15A
4425
4
W19:D 8
R159
1/4W
100K
P3:A
BOOST LEVEL M
.
4
W32:D
W29:E 8
TL072
U7:C
MINI
2M2
1/4W
R152
6
1/4W
4
R21
1/4W
47K
.
P16:A
M MID
6
3
W19:C 8
5
2N2
C88
400V
1/4W
.
W29:C
1/4W
P13:A
M CL GAIN
20K
15A
4423
R160
2M2
8
Alternate
CLN_OUT_PL
2X_TRIODE_HCT
{Body}
1/4W
R167
R168
100V
3
1/4W
V2:C
2X_TRIODE_HCT
{Voltage}
1/4W
C102
47N
8 W19:E
V-
.
Val
V1:A
500K
15A
4425
N054
5
250V
4
C15
47N
CLN_GR
P17:A
M BASS
LVGND
LVGND
Alternate
1/4W
500K
15A
4425
.
UP
BRIGHT
S8:B
S8:A
3522
CLN_OUT_PL
DOWN
100V
R166
18R
LVGND
R163
22K
STANDBY
CLN_OUT_PL
ALTERNATE
GND
400V
R165
33K
C104
47N
V3:C
2X_TRIODE_HCT
{Voltage}
W18:D 8
EQ Shift EQ Shift
S10:D
3440
3440
2
3
W18:C 8
CLN_GR
GND
.
GND
LOW+
1/2W
R171
1/4W
220K
1U
1/4W
GND
GND
W7 BLK W2 BLK
#18
#18
R4
1M
ALTERNATE
NET356
S10:C
CLN/BOOST
AMPLIFIER
.
C86
400V
47P
C105
100V
4
1
GND
_W3
R133
1/4W
220K
.
V1:C
2X_TRIODE_HCT
{Voltage}
Q
W29:F
W14:C 8
GND
INPUT
8
.
W29:B 8
5
R137
1/4W
220K
ALTERNATE
DOWN
C96
4N7
EQ ShiftEQ Shift
S10:B
S10:A
3440
3440
UP
ALTERNATE
3700
1
8 W19:B
2X_TRIODE_HCT
{Body}
.
3
J2
6
N142
NET356
NET356
INPUT
W29:A
8
1/4W
INPUT
R2
1/4W
2K21
8 W19:A
1/4W
#18
W3 YEL
.
Val
V1:B
NET356
DOWN
#18
YEL W4
1
250V
1/4W
6541
DOWN
C32
100N
J1
J6
UP
INPUT_PL
6541
P
INPUT_PL
R169
1/4W
100K
INPUT_PL
2
GND
6
To_Input
To_Input
O
1/4W
.
3682
GRN
N
W19:F 8
+200V
82K5
R15
4
M
Preamp Headers
Input Stage
1
E
DOWN UP
S9:A
3522
Contour
A
R145
1/4W
47K
GND
C81
2N2
.
3696
400V
R138
24K
TL072
.
C82
1N
R158
1/4W
62K
D15
4148
.
U7:B
400V
MINI
3696
100K
1/4W
R154
N109
3700
GND
7
7
+225V
W32:B 8
OD Stage
W29:H
249K
R48
.
R10
1K2
MINI
W32:A 8
R34
249K
.
470P
C21
100V
6N8
C77
100V
C62
33N
8
1
C64
100N
P4:A
M OD VOLUME
TO92
100V
8 W18:A
R108
2M2
.
.
Alternate
33K
R129
Q11
5101
63V
20K
15A
4423
P6:A
M MID
R113
100K
R123
47K
C66
330N
.
+225V
C59
150N
.
+15V
8
BC550C
GND
C30
63V
.
500K
15A
4425
R109
1/4W
120K
MINI
R85
22K
DOWN UP
S4:B
S4:A
3522
Scoop
1/4W
.
1U
R12
1K
GND
W19:H 8
1
P7:A
M BASS
R124
36K
100V
R1
1.0W
4K7
63V
63V
+200V
U6:C
R100
1/4W
8K2
R75
4K7
.
.
R107
1/4W
82K
MINI
-15V
GND
9
R73
220R
.
-15V
10U
C17
450V
100N
C61
63V
.
U6:B
.
GND
MINI
TL072
V+
MINI
.
330N
C28
63V
1/4W
8
R28
1M
1/4W
8
1/4W
W19:G 8
.
2X_TRIODE_HCT
{Body}
R36
1/4W
249K
OD_GR
7
R39
1/4W
120K
400V
C58
10N
8
1/4W
220K
R17
C25
1N
63V
+15V
100V
C68
220P 100V
R104
1/4W
120K
V-
2X_TRIODE_HCT
{Body}
Alternate
Alternate
500K
15A
4425
C75
6N8
.
4
2N2
C5
.
Val
V2:A
R105
1/4W
47K
R102
1/4W
220K
.
C63
100N
Modern
3522
S3:A
DOWN UP
.
Val
V2:B
8 W18:B
250V
R126
56K
.
1/4W
400V
2
1/4W
C23
2N2
1/4W
1/4W
.
400V
C34
100N
Modern
3522
S3:B
DOWN UP
W29:G
400V
P2:A
M OD GAIN
9
8
220P
C90
100V
C38
2N2
1/4W
1/4W
7
OD_OUT_PL
.
OD_GR
10N
C94
100V
500K
15A
4425
C18
400V
GND
P5:A
M TREBLE
1/4W
.
1/4W
K3:B
100K
1B
4424
1N
8
K1:A
470P
C20
250V
1/4W
R20
82K5
1/4W
+225V
R18
113K
400V
1/4W
K2:A
C71
1N
2
OD_OUT_PL
1/4W
OD_GR
OD_OUT_PL
TO_PRE-OUT
GND
10
10
GND
GND
-15V
+15V
Product
LVGND
LVGND
YCS50H Preamp
Gain/EQ
11
PCB# M1293
Date: Fri Mar 12, 2010
Rev:v4.00
Filename: M1293V400.sch2002
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Sheet 1 of 3
YsType:
Q
11
E
F
H
I
J
K
L
M
.
V+
10K
1/4W
R52
C44
22U
50V
50V
MINI
TL072
T
+15V
220P
C37
R
-
-
100V
S
-
IG
S
R
50V
T
-
-
C13
1N 50V
R30
1/4W
10K0
R65
100K
IG
TL072
C16
100N
63V
1/4W
Gold Gold Gold
C35
1N
50V
.
50V
22U
C48
MINI
MINI
C26
1N
-
R
-
T
-
.
TO_PRE-OUT
100V
+15V
R37
1/4W
10K0
1/4W
50V
1N5242B
0W5
100V
R41
10K0
MINI
+15V
These parts are
not stuffed.
C79
33U
TL072
D5
4148
R106
1/4W
2K2
16V
R88
33K
D22
Power
6398
RED
N280
8
R131
1K
6
8
C54
100N
250TAB
7
LVGND
EC122
STANDBY
+15V
STANDBY
-15V
LVGND
EC121
SPLIT_IN
LVGND
N004
_W2
N003
1
2
3
4
5
6
6
6
6
6
6
6
W27:A
W27:B
W27:C
W27:D
W27:E
W27:F
LVGND
SPLIT_IN
LVGND
N004
N003
B
C
D
E
1
2
3
4
5
6
6 W31:A
LVGND
6 W31:B
LVGND
6 W31:C
+15V
6 W31:D
-15V
1
2
3
4
W32:H 8
W18:G 8
8
7
.
Val
V3:B
PGRID
2X_TRIODE_HCT
{Body}
R93
1M
C84
3N3
R89
82K
R91
1/4W
470R
.
220R
1/4W
R71
6
-15V
.
R38
1/4W
10K
TL072
.
U5:A
U2:A
-15V
GND
SPLITTER
R95
1M
.
{Body}
2X_TRIODE_HCT
63V
V3:A
Val
.
GND
R150
3K9
100V
16V
8
W32:E
C33
220P 100V
R47
1/4W
10K
R33
1/4W
10K
.
R61
1/4W
620R
C47
22U
R63
1/4W
620R
C43
22U
R66
1/4W
220K
W18:E 8
63V
MINI
J14
MINI
50V
R60
220K
.
3923
IG
82K
1/4W
R139
3682
YEL
8 OHM
W12
3424
4ohm/8ohm
S1:B
3424
4ohm/8ohm
S1:A
3
4
Alternate
#18
YEL W16
XF1
Part#
XF-OUT-CT
20K
15A
4423
5
3682
GRN
2
4 OHM
W13
T
R
S
-
-
-
EXT SPEAKER
J7
#18
BLK W15
9
GND
#18
BLK W6
SPKR
5
{Description}
{Hz}
#18
YEL W1
GND
SPKR
LVGND
-Plate
.
1
6
NGRID
3682
BLK
W32:G
GND
W11
T
R
S
-
-
-
INT SPEAKER
J3
4 W35:A
10
GND
4 W35:B
Product
GND
4 W35:C
4 W35:D
YCS50H Preamp
Effects/Master
6 W31:E
PCB# M1293
Date: Fri Mar 12, 2010
Rev:v4.00
Filename: M1293V400.sch2002
6 W31:F
F
7
.
LINE.OUT
50V
.
XF_P1
+Plate
R157
2M2
P10:A
M Presence
.
R86
100K
5
XF_P1
.
C87
150N
220P
C12
200V
.
C93
33U
.
.
R97
1/4W
10K
1/4W
UP
UP
6544
6544
S7:B
S7:A
STANDBY STANDBY
DOWN
DOWN
N258
1
W32:F
STANDBY
250TAB
16V
.
Resonance
M
P11:A 500K
4425 15A
8
100V
.
N246
N086
C52
10N
SPLIT_IN
N236
1
6
SPLIT_IN
.
W32:C
8 W18:H
1/4W
.
-FDBK
Splitter
W18:F 8
R136
3K3
1/4W
1/4W
Mini
D23
Standby
6399
YEL
GND
A
.
8
-FDBK
8
_W1
C9
33U
GND
U6:A
3
GND
680P
C60
100V
TL072
GND
.
R143
1.0W
1K
TO_PRE-OUT
.
3N3
C51
100V
TL072
U5:C
.
U5:B
63V
1/4W
C70
330N
C56
10U
.
68N
C55
100V
R94
1/4W
4K7
Voice1/4W
3522
S6:A
S6:B
DOWN UP
.
R82
1/4W
4K7
.
1/4W
R98
4K7
R90
1/4W
4K7
MASTER VOL
M
20K P12:A
15A 4423
N089
11
R23
47R
C36
220P 100V
R46
1/4W
10K
+15V
GND
N085
.
U2:B
Q4
5104
.
N141
LVGND
IG
TO92
GND
10
.
R25
1/4W
470R
U2:C
U4:B
33U
C80
16V
N273
TL072
5
-15V
.
N067
Headphone
J15
R22
47R
16V
+15V
9
#16
GRN W26
TO92
MPSA56
GND
GND
.
33U
C7
16V
.
1/4W
1/4W
1/4W
8
63V
#16
GRN W17
HeadPhGnd HeadPhGnd
-15V
TO_HPHN
C74
330N
R99
33K
R29
1/4W
10K
R40
8K2
-15V
100N
C69
63V
HDPHN HDPHN
.
220R
1/4W
R80
Q3
5103
1/4W
100N
C67
63V
#18
RED W9
-15V
D3
4148
TO_HPHN
100N
C19
63V
MPSA06+15V
.
GND
100N
C95
63V
#18
W23 RED
R26
1/4W
4K7
TO92
R24
33R
+15V
100N
C14
63V
4
GND
.
7
100N
C78
63V
NET_D
NET_C
4
C24
39N
MINI
C39
1N
C6
2U2
3
D17
4148
.
U4:C
1/4W
IG
63V
D18
4148
2N5638
Q21
5119
TO92
NET_B
NET_A
GND
TL072
V-
R57
1/4W
10K0
GND
6541
C72
33U
P8:A
REVERB1 M
16V
.
GND
MINI
6
.
R3
1/4W
560R
J5
R9
47R
R43
1/4W
10K0
MINI
TL072
R5
1/4W
82K
.
C4
100V 100P
R7
1/4W
2K2
D12
4148
2N5638
Q15
5119
TO92
20K
15A
4423
GND
R77
1/4W
15K
8
S
R35
8K2
C22
39N
50V
V+
PRE-OUT
J11
1/4W
5
.
U1:A
Q1
5104
0W5 D2 12V0
1N5242B
12V0 D1
R16
1/4W
10K
.
C3
100P 100V
MINI
R56
1/4W
620R
2N2
C1
400V
4K7
1/4W
R27
R31
470K
2N5638
Q19
5119
TO92
1/4W
C45
22U
MPSA56
-15V
R50
1/4W
10K0
R64
1/4W
220K
6541
GND
RevSend
.
.
TL072
MINI
1/4W
R68
1/4W
620R
50V
R19
100K
D9
4148
8
4
R11
47R
R13
1/4W
470R
U1:C
MINI
63V
V+
22U
C27
U1:B
100N
C11
J4
1/4W
R49
1/4W
10K0
TO92
1/4W
U4:A
16V
.
4148
D4
Q2
5103
8
R59
1/4W
10K0
2N5638
Q13
5119
TO92
20K
15A
C101 4423
33U P18:A
REVERB2 M
.
V-
50V
T
R78
1/4W
15K
4
R
C29
220P
IG
GND
MINI
2
GND
.
RevRet
MINI
S
.
.
MPSA06
1/4W
AMP-IN
J10
22U
C40
+15V
V+
50V
16V
R45
1/4W
24K
R62
100K
100V
V-
.
R112
1/4W
4K7
TL072
-
.
4
R67
1/4W
220K
R51
1/4W
10K
22U
C41
20K
15A
C73 4423
33U P9:A
FX Ret 1 M
U3:B
.
.
47K
1/4W
R44
GND
R54
1/4W
10K
22U
C42
.
EFF.RETURN
EFF.SEND
J13
J12
#16
GRN W20
8
GND
3
GND
RING
U3:A
U3:C
C97
33U P19:A
FX Ret 2 M
16V
.
1/4W
4
R53
1/4W
620R
1/4W
1/4W
N101
as per PC7865
Q
20K
15A
4423
R116
1/4W
4K7
.
on P1
2
100V
50V
-15V
10K
1/4W
R55
16V
C31
220P
R42
1/4W
24K
V-
IG and GND
C50
22U
.
N088
Shortbridge between
P
1
MINI
.
O
R69
1/4W
620R
100V
R58
1/4W
47K
10K
5B LIN
4417
33U
C49
P1:A
M Send Level
N
1/4W
C46
220P
1
G
8
D
V+
C
V-
B
4
A
G
H
I
J
K
L
M
N
O
P
Sheet 2 of 3
YsType:
Q
11
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
1
1
K1:B
+15V
R156
4K7
R128
10K
.
1/4W
R121
47R
R120
100R
T
.
R
S
MPSA06
NET_B
TO92
.
TO92
R84
10K
R83
4K7
UP
R92
1/4W
10K
Q7
5101
S5:B
S5:A
3522
.
.
-15V
D8
4148
D13
4148
NET_D
D11
4148
3
D14
4148
LVGND
Alternate
+15V
1/4W
22U
C100
50V
NET_C
DOWN
.
TO92
.
CH1
D20
YEL
5907 CH-SELECT
1/4W
TO92
BC550C
.
NET_A
R134
1/4W
470K
.
Q9
5102
R147
1/4W
470K
.
FT.SWITCH
J8
BC560C
R148
1/4W
1K
R135
1/4W
470K
.
-15V
63V
.
Q20
5103
R141
1/4W
470K
TO92
C85
100N
1/4W
MPSA06
Q14
5103
2
Q16
5101
Gold Gold Gold
3
.
R153
2K
.
1/4W
4148
D16
.
R130
22K
1N5240BRL
D10
100N
10V0
C83
0W5
BC550C
63V
1/2W
1/4W
2.0W
R79
2K2
.
.
2
R103
1/4W
1K
R132
100K
1/4W
CH2
D24
GRN
5908
LVGND
+15V
R118
2K2
1/4W
K2:B
1/4W
3696
1/4W
3696
+15V
MINI
R115
2K2
MINI
4
R111
10K
1/4W
1/4W
4
.
BC560C
D7
4148
RVB/EFX DFT
J9
K3:C
S
R
Q18
5102
LVGND
TO92
T
.
BC560C
Q17
5102
LVGND
R110
10K
TO92
3700
R117
47R
.
.
R101
220R
-15V
D25
BC560C
R119
10K
.
R122
4K7
.
S2:A
3522
UP
UP
Alternate Alternate
BOOST
S2:B
3522
1/4W
MINI
TO92
DOWN
.
-15V
YCS50H
MODEL(S):REF
FUNCTION PART# KNOB
LVGND
4148
C76
330N
63V
R81
100K
.
C53
4N7
D6
7
M1293 POTLIST
.
+15V
DOWN
R114
1/4W
10K
Q8
R74 5101
2K2
TO92
BOOST
D21
RED
5906 BOOST
1/4W
TO92
1/4W
Q12
5103
R172
1/4W
22K
4148
Q10
5102
BC550C
1/4W
2U2
C57
63V
-15V
N200
400V
.
.
MPSA06
6
.
R151
22K
LVGND
1/4W
R72
10K
100N
C92
63V
R155
22K
1/4W
C65
1N
1/4W
1/4W
4148
D19
100N
C91
63V
1/4W
5
Gold Gold Gold
1/4W
5
R87
47K
.
250V
BC550C
R96
1/4W
100K
R76
1/4W
4K7
.
.
TO_PRE-OUT
J109
Q6
5122
TO92
R70
1/4W
100K
.
Q5
5101
TO92
GND
-15V
8
M1293 PCB_DATABASE_HISTORY
2N5401
2N5551
MPSA06
MPSA13
MPSA43
MPSA56
MPSA63
MODEL(S):-
9
YCS50H
VER# DESCRIPTION OF CHANGE
# DATE
RELEASED FOR PRODUCTION
1 11/APR/2008 1.00
PC#7535 & flipped standby switch.
2.00
2 2008/04/30
PC7865: changes according to PC
3 23-SEP-2009 .
PC#8037: CHANGED TO NYLON STANDOFF NUT
4 12-MAR-2010 4.00
CHANGED TO XH STYLE CONNECTORS
V
5 D
N
V
6 D
N
7 D
V
N
V
8 D
N
V
9 D
N
10 D
V
N
V
11 D
N
V
12 D
N
13 D
V
10
6
{NEW}
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
SEND LEVEL
OD GAIN
BOOST LEVEL
OD VOLUME
TREBLE
MID
BASS
REVERB1
FX RET 1
PRESENCE
RESONANCE
MASTER VOLUME
4417
4425
4425
4425
4424
4423
4425
4423
4423
4423
4425
4423
8431
8431
8431
8431
8431
8431
8431
8431
8431
8431
8431
8431
N
N
N
N
N
N
N
N
N
N
N
N
P13
P14
P15
P16
P17
P18
P19
R
R
R
R
R
CL GAIN
CL VOLUME
TREBLE
MID
BASS
REVERB2
FX RET 2
F
F
F
F
F
4425
4425
4424
4423
4425
4423
4423
P
P
P
P
P
8431
8431
8431
8431
8431
8431
8431
K
K
K
K
K
N
N
N
N
N
N
N
N
N
N
N
N
7
8
9
BC550C
BC560C
J109
2N5638
10
EBC
TO-92
C B E
TO-92
DSG
TO-92
6882_PC
"STYLE_P32"
"STYLE_P28"
Product
YCS50H Preamp
Switching
11
PCB# M1293
Date: Fri Mar 12, 2010
Rev:v4.00
Filename: M1293V400.sch2002
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Sheet 3 of 3
YsType:
Q
11
65
W20
R22
R25
R23
R26
4417
5B LIN
C43 RT
V
22U
50V
R60
220K
J14
-
-
-
220P
C33
R46
R47
620R
-
C47
22U
50V
RT
V
220K
R61
-
10K
X11
X
10K
X
C36 220P
X
W17
U2
R63
R66
620R
Q4
R29
X3
Q3
EFF.RETURN
LINE.OUT
R65
C9 R33
10K
10K
R38
X
TL072
R42
TL072
620R
R53
C50
BOT WIP TOP
R67
22U
50V
220P
C46
50V
22U
RT
V
16V
33U
X
R45
R51
R54
J13
100K
100K
Send Level
10K
#16
P1
620R
C48
GRN
J12
-
16V
33U
-
IG
10K
R55 R58
47K
10K
R52
RT
V
50V
22U
24K
10K
10K
C41
RT
C42
V
C44
22U
22U
EFF.SEND
50V
50V RT
V
RT
V
X
X
RT
V
X
C7
W9
24K
C29
220P
C31
220P
X6
X7
10K0
10K0
R43
10K0
1N
C26 C22
R37
220P
C37
-
-
U3
47K
X
X
R62
Gold
R44
R69
R68
X18
R40
39N
C24
D3
620R
Gold
8K2
8K2
J11 PRE-OUT
RT
V
Gold
9
2358
R35
C49
AMP-IN
R59
5
1
12V0
D1
12V0
D2
4148
D4
R41
4148
TL072
22U
50V
10K0
C45
W5
R56
620R
R57
10K0
1N
C39
U1
100P
C3
R13
100P C4
22U
50V
C14
R49
10K0
100N
C16
10K0
100N
1N
10K0
1N
C13
X5
C27
38
35
U4
C35
R50
J10
41
MPSA56
Q1
X1
MPSA06
Q2
R30
C6
2U2
63V
TL072
R5
R7
2K2
t
100K
1/2W
18R
R166
X9
X12
C54
100N
82K
560R
R3
R
R ev
C R
A e
G
2
G
3
J4
SI
G
G
1
C11
R86
C12
220P
R89
82K
1M
10K
C52
10N
R97
C21
470P
1M
470R
1U
63V
X8
R93
R91
82K5
R20
R39
120K
R36
249K
R48
249K
249K
R34
2N2
C23
R95
X2
470P
C20
2N2
C5
R28
1M
8
2328
50V
22U
C40
R24
33R
220K
Gold
1
X22
X17
RT
V
C17
8
2328
RT
V 5959
R64
220K
Gold
1
W19
X16
-
W18
470R
10K
100K R19
C19
100N
10U
450V
m
p
Gold
V3 Val
X4
470K
R31
R12
1N
C25
14
Gold
C30
RT
V
4K7
R27
W
-
1K2
C28 330N
R168
Gold
X14
Gold
4ohm/8ohm
3424
J9
R10
C32
J8
RVB/EFX DFT
82K
C15
47N
RT
V
V2
X10
113K
R167
R139
5865
X13
220K
R32
V1
2N2
2358
5841
R4
G1
1U
82K5
R15
9
5865
1K
C38
4 OHM
Val
R17
R6
1M
1K
SIG
47P
C105
G2
W8 GRN
C18
1N
100N
W13 GRN
8 OHM
W12 YEL
R8
R18
S1
DPDT SLID
-
5
FT.SWITCH
J7
W16 SPKR
GND
63V
6541
G3
W3
RING
6541
TIP-SW
RCA
W2
W1 #18
W15
BLK
YEL
1K5
To_IG
1
RT
V
100N
T
o
Po
w
er
A
EXT SPEAKER
#18
#18
BLK
220K
.
R16
39N
W11 GND
W10
C8
C34 RT
V
100N
.
3732
2
INPUT
3732
RED
SEND
G
X
1N
113K
R21
47K
R11
J5
W6 #18
.
C2
R9
47R
47R
3
W7
RING-SW
R14
3732
C1
2N2
G
J6
J2
X
W4
RETURN
WHT
1.0W
4K7
R1
G
SI
INT SPEAKER J3
-
-
J1
(5/6)
M1293
(2/ 6)
1
To_Input
1
M1293
2K21
R2
G2
SIG
3921
VE
EE
SL
BLK
(3/6 )
M1293
TIP
G3
G1
41
65
GND
X
G
YEL
X
2
SPKR
nd
Se A
ev C
R R
To_Input
RCA
3923
BEC
REVERB2
WHT
P18
Q21
LONG AXIS
Top Assy M1293 v4.00
Pcb MechM1293 v4.00
SEE LAYOUT DOCUMENTATION
(6/6)
R80
R106
2K2
TL072
6399
YEL 6398
D23 D22
15A
4423
RT
V
X58
MASTER VOL
P12
W27
Standby Power
RED
20K
R136
3K3
C80
X42
X43
R131
C67
2335
WHT
1K
4K7
4148
R98
4K7
R88
33K
C70
33K
R99
4K7
R90
D5
R94
3N3
P11
J15
Headphone
R143
1.0W
1K
2327 6
1
S6
2M2
CL
CR
NOL
NOR
Voice
P19
C101
2335
StepAndRepeat - [email protected]@0.000
ClinchRepeats - [email protected]@0.000
4
M1293
(4/ 6)
6
WHT
4423
W35
Q19
NCR
S7
Alternate
NCL
3522
R157
4425
Resonance
X57
3K9
R150
RT
V
33U
16V
C93
150N
X15
C87
4423
Presence
Contour
BlankSize - 19000x8000
680P
15A
WHT
VCD
ORIGIN
C60
X37
500K
15A
33U
16V
4148
D12
4148
2N5638
D9
15A
20K
RT
V
C74
C84
FX Ret 2
C97
X33
X32
X24
15K
R78
R77
15K
X35
2N5638
33U
16V
C73
TL072
X28
R112
R116
X30
X31
R105
J109
220R
47K
4K7
4K7
33U
16V
20K
330N
2337
8
WHT
P10
W23
X W26
330N
1
1
P17
2335
100N
C56
M1293
2343
NOR
RT
V
4423
RT
V
100N
C69
10U
16V
R71
X
1
NOL
Q15
2328
Q13
D8
4148
R134
470K
4148
D13
470K
R141
X59
RT
V
U5
4423
FX Ret 1
2335
X64
X66
15A
C79
9
C51
3N3
STANDBY
CR
120K
R135
470K
20K
16V
33U
5
2358
R82
4K7
6544
NCR
CL
R104
Q5
2335
WHT
15A
C55
68N
DPDT TOGGLE
47N
NCL
RT
V
1
W24
P9
20K
WHT
X67
W32
4425
BASS
R81
X36
C66
330N
BC560C
C92 C91
15A
U6
6N8
C75
2N5638
D17
4148
470K
R147
D18
4148
500K
100N
22K
R155
100N
R151
X61
X47
100N
Q18
Q16 Q17
22K
R73
4N7
R110
R111
10K
10K
R118
P8
16V
33U
RT
V
R130
C72
D10
100K
R132
10V0
4148
D11
BC550C BC560C
4148
D14
22K
C83
X45
X48
4423
REVERB1
Alternate
P16
R87
15A
220P C68
R115
X41
X44
3N3
C89
220K
TL072
R138
C88
47K
20K
16V
33U
MID
2K2
P7
C78
C53
2K2
BASS
100N
3522
C82
D15
1N
4423
C95 U7
100N
R158
62K
100K
R159
150K
R162
S9
4425
2N2
C63
100N
33N
C81
Scoop
X40
R70 Q6
100K
100K
2N5638
22K
R164
100K
33K
R165
2N2
8
TREBLE
EQ Shift
20K
15A
4424
R163
CR
NOR
2335
WHT
2328
NCR
CL
NOL
4148
24K
X62
W29
1
WHT
R149
R154
C106
1N
R170
22K
2M2
C2
C1
RELAY 1C
1B
C98 C99
10N
S10
(1 of 6 )
P15
100K
R108
X51
v4.00
S4
Alternate
NCL
P6
NO
NC
C76
330N
YCS50H Preamp
K1 3696
C61
R107
R109
R146
120K
R102
R142
100K
100K
4148
1N
R124
36K
M1293
100N
1M
100K
D6
X69
4K7
R75
X39
3522
56K
500K
15A
3522
WHT
3440
R96
X21
R74
R113
WHT
47K
100K
R169
R126
Modern
R145
47K
X52
X50
R137
WHT
CR
NOR
X65
X63
2M2
R144
47K
P14
2335
INSERT
2K2
X23
R72
10K
2U2
63V
C57
BC560C
NO
NC
C
X60
MPSA06
C65
1N
CL VOLUME
NCR
CL
NOL
MID
C104
NOR
15A
4425
NCL
4423
2335
WHT
8K2
C62
C71
C102
47N
NOL
BRIGHT
500K
Alternate
4424
TREBLE
2M2
R160
CR
R152
NCR
CL
1N
C86
220K
R171
R119
X54
220K
220K
R125
X46
4N7
C96
4148
D19
Alternate
NCL
BC550C
X20
X26
47R
R127
100K
R117
X56
C1
S8
47K
R161
C103
1N
SHORT AXIS
CL GAIN
33K
47K
X19
R101
NO
C2
X49
WHT
NC
D16
MPSA06
4K7
R156
4148
47R
R121
R120
100R
22U
50V
3700
CLINCH
ORIGIN
RELAY 2C
4425
WHT 3522
-
WHT
15A
R133
220K
R140
C64
R123
47K
R129
6N8
C77
BC550C
S3
15A
R85
22K
R100
C58
10N
20K
BUTTON
2335
K2
3696
100N
BUTTON
5908
+
C100
10N
BUTTON
D24
GRN
C94
P13
500K
K3
RELAY 1C
Q12
4425
OD VOLUME
C59
150N
1B
100K
10K
P5
100K
Q11
10K
4K7
R122
P3
15A
2335
WHT
4K7
X29
X34
X38
BUTTON
RT
V
C90
220P
R114
4425
BOOST LEVEL
P4
500K
10N
2K
1/2W
Q20
CH2
MPSA06
X53
100N C85
R148
1K
R153
3522
BOOST
Q14
NOR
3522
NOL
CH-SELECT
CR
NOR
Q10
9
Q8
BC550C
R76
BUTTON
CR
BUTTON
NCR
CL
NCR
CL
NOL
5
RT
V
BUTTON
Alternate
NCL
NCL
10K
R128
BUTTON
S5
Alternate
2358
1
500K
15A
220R
4148
D7
S2
P2
WHT
-
X55
4425
OD GAIN
W21
+
BOOST
5906
X27
15A
RED
D21
120K
82K
BC560C
4K7
Q7
BC550C
2K2
R79
2.0W
D20
-
+
CH1
YEL
5907
X25
10K
R84
10K
500K
Q9 R92
R103
1K
R83
2335
WHT
Wave Solder Support
Into Wave
LOC
22K
R172
4148
D25
W31
SEE LAYOUT DIAGRAM
M1293 PRODUCTION NOTES
1. DO NOT AUTO INSERT OR HAND INSERT COMPONENTS MARKED WITH "X"
6544-MTG
Notch
6544
3752 (2)
PCB
2343
SEE LAYOUT DIAGRAM
M1293 POTLIST
YCS50H
M1293 PCB_DATABASE_HISTORY
MODEL(S):-
MODEL(S):REF
FUNCTION PART# KNOB
YCS50H
VER# DESCRIPTION OF CHANGE
# DATE
1 11/APR/2008 1.00
RELEASED FOR PRODUCTION
2 2008/04/30
2.00
PC#7535 & flipped standby switch.
3 23-SEP-2009 .
PC7865: changes according to PC
4 12-MAR-2010 4.00
PC#8037: CHANGED TO NYLON STANDOFF NUT
5 D
V
CHANGED TO XH STYLE CONNECTORS
V
N
6 D
7 D
V
N
8 D
V
N
V
N
9 D
V
10 D
N
V
11 D
N
V
N
12 D
V
13 D
N
2N5401
2N5551
MPSA06
MPSA13
MPSA43
MPSA56
MPSA63
SEND LEVEL
OD GAIN
BOOST LEVEL
OD VOLUME
TREBLE
MID
BASS
REVERB1
FX RET 1
PRESENCE
RESONANCE
MASTER VOLUME
4417
4425
4425
4425
4424
4423
4425
4423
4423
4423
4425
4423
8431
8431
8431
8431
8431
8431
8431
8431
8431
8431
8431
8431
P13
P14
P15
P16
P17
P18
P19
CL GAIN
CL VOLUME
TREBLE
MID
BASS
REVERB2
FX RET 2
4425
4425
4424
4423
4425
4423
4423
8431
8431
8431
8431
8431
8431
8431
PIN CONFIGURATION
BC550C
BC560C
J109
2N5638
G2
G1
4
C B E
TO-92
DSG
TO-92
5
4
5
1P
6
6
NC
2K 3
7
H 2
7
H
2G 2
8
NC
6882_PC
H
H
P 3
1
EBC
TO-92
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
EL34
8
K
G3
1
2P
1G
1K
9
HT
12AX7A
"STYLE_P32"
"STYLE_P28"
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
1
1
2
2
3
3
D15
C87
350v
HER508
Gnds
D16
LVGND
Copper
Tie Here
Dummy 3682
W16
-
Dummy 3682
W4
-
R184
1.0W
100R
CHGND
Dummy
W21
.
NET00000
3682
7 RED
6
3682
BLK
LINE
W7
3682
BRN
HV
W10
RED
PRI
W68
3682
VIO
1000U
C80
35V
D10
4007
HVCT
W11
6872
3692
R185
1.0W
100R
.
TO220
+15V
100U
C82
25V
100N
C84
63V
T1
{Description}
1327(E)
LV
W13
LVGND
2
LVGND
1000U
C81
35V
D11
4007
3682
4 YEL
CT
W14
3682
GRY GRY
LV
W15
8
DPDT Switch
S15
4N7
C113
250V
3682
GRN
.
9
5
4 W2:C
6
4 W2:B
4 W2:A
4 W2:D
-15V
3692
7
-15V
FIL-
.
250V
GRN
1
220N 250V
C90
CHASSIS
CHGND
W19
DPDT3
.
GND
D19
220N
C91
4007
R179
47K
.
R180
47K
.
350V
C92
22U
-RAW
R181
1/4W
4K7
.
350V
C93
22U
35V
C88
1000U
8
R182
1M
.
GND
FUSE
F1
22U
C110
350V
2
GRN
9
PR2
.
100N
C85
63V
MC7915CT
U7
3
PRI
W9 BLK
100U
C83
25V
R183
5.0W
22R
1/2W
3682
BLU
4
10U
C101
450V
REF
4007
1/2W
WHT-YEL
3682 W8
LINE
W22
+225V
.
10U
C100
450V
INNeg15Reg
OUT
YEL
3682
WHT
TO220
.
6871
D12
GRY
R220
470K
R203
1.0W
4K7
LP_PS
3
1
1/4W
22N
C112
275V
7
HV
W12
R219
470K
.
GND
BLK
6 3682
5 GRY
R214
470K
.
22U
C109
350V
R178
1.0W
10K0
+15V
4
3682
RED RED
22U
C107
350V
FIL+
REF
4007
R212
470K
470U
C89
25V
.
U6
MC7815CT
IN
OUT
Pos15Reg
D9
.
10K0
1.0W
R205
.
GND
10MM
0 W40
HER508
3682
-
10MM
SPLITTER
R221
2.0W
2K2
WHT
3682
22U
C106
350V
GND
5
WHT-BLK/YEL BLK-ORG
3682
W17 3682
W5
R172
150K
W18
Choke
1/4W
C86
350v
R171
150K
SCREEN
{Description}
COIL
WHT
3682
1/4W
HER508
D40
M1295 470U 5957
M1353 330U 6574
M1357 220U TBA
HER508
W20
Choke
2.0W
D14
PWR
2.0W
PCB# Value Part#
1
OUTX-F_CT
16AWG
VIO W3
C86 and C87 Values
HI V
1/4W
16AWG
W1 RED
1/4W
D13
HER508
4
C116
680N
250V
X8001.PCB_DATABASE_HISTORY
MODEL(S):-
PR2
Power Amp
Header
{Value}
{C_Type}
To_PowerAmp
IEC_RECT
W29:A 9
W29:B 9
W29:C 9
W29:D 9
10
W29:E 9
W29:F 9
W29:G 9
W29:H 9
W29:I 9
1
2
3
4
5
6
7
8
9
-RAW
FILFIL+
HVCT
GND
+225V
#
1
2
3
4
5
6
7
8
9
10
11
12
13
DATE
26-FEB-2007
20-MAR-2007
.
19-JUN-2007
29-AUG-2007
.
.
.
14-SEP-2007
18-SEP-2007
15-DEC-2008
D
D
YCS50, 50H, 90, 30
VER# DESCRIPTION OF CHANGE
1.00
2nd Proto
.
Moved R171 0.05in away from tab W11. Rotate C8 to
allow eyelet insertion.
.
Added ClinchRepeats field
.
Renamed to X8001. Added jumpers for M1295/YCS90,
2.00
M1353/YCS50, M1357/YCS30. Imported fixture nodes.
.
Moved R171 0.05in more away from tab W11. Updated
.
pads on TO220 and Molex pins. Corrected X2 span.
.
3.00
Move W11, D40 and R171 to eliminate clearance errors.
.
Moved W15 0.05" away from D12. Made rtvhole clearance 10.
PC#7511, EXTEND THE BOARD AND ADD 5 TABS
4.00
N
V
N
V
SPLITTER
Product
SCREEN
YCS50/90 Power Supply
Power Supply
PCB# X8001
Date: Fri Jan 23, 2009
Rev: V4.00
Filename: X8001V400sch.sch2002
B
C
D
E
F
G
H
I
J
K
10
OUTX-F_CT
11
A
9
L
M
N
O
P
Sheet 1 of 2
YsType:
Q
11
LOC
BREAK PANEL IN 2 ALONG THIS SCORE LINE BEFORE CLINCHING.
SCORE
PRI
BLU
PRI
W9
22N
275V
C112 6435
330U
HVCT
VIO
W11
LINE
W7
BLK
RT
V
150K
2.0W
R171
HER508
6888
16AWG
.4"Fins
BLK
W20 Choke
Dummy
TO220
Device
C107
RT
V
C110
5958
RT
V
R212
RT
V
8799
2K2
2.0W
R219
470K
3692
5958 RT
V
350V
22U
R221
INSERT
NORMAL
NORMAL LARGE
SOCKET WITH DIRECTION
TAB
C106
PCB
W18
BLK
Choke
TO220+3692+8799-MTG
CLINCH
ORIGIN
SOCKET
SOCKET UPSIDE DOWN
5958
470K
5958
22U 350V
RT
V
EYELET LEGEND
C101
450V
10U
5959
RT
V
C109
W16 VIO
Dummy PWR
W4
W21
W5
350v
6574
R172
150K
2.0W
SHORT AXIS
W17
22U
350V
330U
W8
W3
W6
WHT-YEL
HT LINE WHT-BLK/YEL BLK-ORG Dummy
W22W
C86
RT
V
D40
C116
5266 680N 250V
-
CHASSIS
RT
V
R181
C100
RT
V
BRN
GRN W19
X1
22U
350V
6574
5959
R178
10K0
1.0W
1/2W
47K
C87
C113
6451
250V
4N7
R180
R179
4007
R203
C93
R205
350v
RT
V
ClinchRepeats - [email protected]@5.500
BlankSize - 18000x11000
X8001
V4.00
4K7
1.0W
5958
X2
YCS90
YCS50/50H
YCS30
1.0W
10K0
D19
C91
D16
R183
1/2W
47K
250V
220N
C88
5635
M1295
M1353
M1357
450V
10U
6888
HER508
5882
C92
5958
RT
V
R220
R214
5882
C83
470K
470K
HI V
C85
To_PowerAmp 3538
1M
R182
4K7
HV
HER508
6888
250V
C90
220N
6888
W10 D15
HER508
22R
5.0W
25V
100U
350V
22U
RED D13
RED
U7
StepAndRepeat - [email protected]@5.500
W29
3692
100N
W1
16AWG
RED
HER508
6888
W40
RT
V
5618
C89
H1
RT
V
6871
MC7915CT
Neg15Reg
.
TO220
D11
8799
4007
YEL
CT D14
HV
W12
4007
X15
LV
W14
3692 .4"Fins H2
C81
D12
5635
35V
1000U
W15
GRYGRY
YCS50/50H
470U
25V
22U
350V
4
C80
1000U
35V
.
TO220
U6
C84
100U
25V
100R
1.0W
R185
8799
Pos15Reg
MC7815CT
6872
RT
V
C82
100N
W2
_
RT
V
5635
LV_PS
D9
4007
4007
1000U
35V
1
LV
W13
100R
1.0W
R184
RT
V
D10
M1353 V4.00
Pcb Mech X8001V4.00
Top Assy X8001V4.00
VCD
LONG AXIS
ORIGIN
SEE LAYOUT DOCUMENTATION
SEE LAYOUT DIAGRAM
X8001.PCB_DATABASE_HISTORY
MODEL(S):#
1
2
3
4
5
6
7
8
9
10
11
12
13
DATE
26-FEB-2007
20-MAR-2007
.
19-JUN-2007
29-AUG-2007
.
.
.
14-SEP-2007
18-SEP-2007
17-MAR-2009
D
D
PRODUCTION NOTES X8001(M1295, M1353, M1357)
YCS50, 50H, 90, 30
VER# DESCRIPTION OF CHANGE
1.00
2nd Proto
.
Moved R171 0.05in away from tab W11. Rotate C8 to
.
allow eyelet insertion.
.
Added ClinchRepeats field
2.00
Renamed to X8001. Added jumpers for M1295/YCS90,
.
M1353/YCS50, M1357/YCS30. Imported fixture nodes.
.
Moved R171 0.05in more away from tab W11. Updated
.
pads on TO220 and Molex pins. Corrected X2 span.
3.00
Move W11, D40 and R171 to eliminate clearance errors.
.
Moved W15 0.05" away from D12. Made rtvhole clearance 10.
4.00
PC#7511, EXTEND THE BOARD AND ADD 5 TABS
V
N
V
N
1. BEFORE CLINCHING, BREAK PANEL IN 2 ALONG LINE WHERE INDICATED.
2. B.A. WILL PUT C86 AND C87 AS FOLLOWS
BOARD
M1295
M1353
M1357
C86
#5857, 470U
#6574, 330U
#____, 220U
C87
#5857, 470U
#6574, 330U
#____, 220U
M1295
M1295
M1353
M1357
YCS90
YCS50/50H
YCS30
M1353
M1295
M1353
M1357
YCS90
YCS50/50H
YCS30
M1357
M1295
M1353
M1357
YCS90
YCS50/50H
YCS30
3. B.A. WILL CUT TWO OTHER JUMPERS
16AWG
W16
Dummy
Dummy
.4"Fins
W29
22U
350V
R205
1.0W
10K0
RT
V
450V
10U
RT
V
R178
10K0
1.0W
450V
10U
R220
R214
470K
470K
C101
5959
R212
RT
V
X8001
V4.00
4K7
1.0W
5958
C110
470K
2K2
2.0W
350V
22U
WHT
W20 Choke
PWR
VIO W3
1000U
35V
R181
22U
350V
350v
R171
C109
5958
RT
V
X2
YCS90
YCS50/50H
YCS30
5958 R203
C93
4K7
C86
5959
C100
R182
M1295
M1353
M1357
X1
6574
HER508
6888
3538
1M
C88
5635
RT
V
R172
150K
2.0W
5618
C89
22U
350V
TO220
R183
350V
22U
RT
V
330U
D40
-
BLK
C92
RT
V
150K
2.0W
.
.
SHORT AXIS
W17
WHT
W6
Pos15Reg
MC7815CT
6872
100N
6871
MC7915CT
Neg15Reg
.
TO220
35V
1000U
BRN
PRI
W9
HVCT
VIO
W11
LINE
W7
BLK
5958
470U
25V
To_PowerAmp
RT
V
C83
C85
H1
3692
25V
100U
YCS50H
5958
C107
RT
V
R219
470K
RT
V
350V
22U
R221
C106
5958
WHTChoke
W18
Dummy
W4
W21
22N
275V
C112 6435
.
X15
330U
RT
V
R180
R179
RT
V
RT
V
C116 5266
680N 250V
W8
WHT LINE
WHT
100N
LV_PS
6574
W5
W15
W40
D19
C87
CHASSIS
BLK
PRI
1/2W
47K
4007
1/2W
47K
350v
GRN W19
C113
6451
250V
4N7
W22
W1
C91
250V
220N
5882
6888
HER508
D16
H2
22R
5.0W
5882
6888
HER508
W10 D15
4044
D9
4007
4007
LV
W13
HV W14
HV
250V
220N
100R
1.0W
R185
8799
.
D13
C84
U7
RED
HER508
6888
C90
RT
V
.4"Fins
3692
8799
HI V
16AWG
HER508
6888
U6
D11
YEL
CT D14
4 CIR
4007
C81 5635
100R
1.0W
R184
4
D12
4007
C82 RT
V
25V
100U
3
RED
RED
RT
V
5635
C80
2
W12
W2
1
GRYGRY
LV
1000U
35V
RT
V
D10
M1353 V4.00
CE WIRING
240 VAC
WHITE
WHITE
CH1335U
WHITE
#3702
POWER
#3698
AMP MODE
16AWG
W16
Dummy
Dummy
.4"Fins
W29
22U
350V
R205
1.0W
10K0
RT
V
450V
10U
RT
V
R178
10K0
1.0W
450V
10U
R220
R214
470K
470K
C101
5959
R212
RT
V
X8001
V4.00
4K7
1.0W
5958
C110
470K
2K2
2.0W
350V
22U
WHT
W20 Choke
PWR
VIO W3
1000U
35V
R181
22U
350V
350v
R171
C109
5958
RT
V
X2
YCS90
YCS50/50H
YCS30
5958 R203
C93
4K7
C86
5959
C100
R182
M1295
M1353
M1357
X1
6574
HER508
6888
3538
1M
C88
5635
RT
V
R172
150K
2.0W
5618
C89
22U
350V
TO220
Pos15Reg
MC7815CT
6872
100N
R183
350V
22U
RT
V
330U
D40
.
BLK
C92
RT
V
150K
2.0W
-
BRN
W6
.
WHT
W17
.
W8
WHT LINE
WHT
PRI
W9
HVCT
VIO
W11
LINE
W7
BLK
5958
470U
25V
To_PowerAmp
RT
V
C83
C85
H1
3692
25V
100U
YCS50H
5958
C107
RT
V
R219
470K
RT
V
350V
22U
R221
C106
5958
WHTChoke
W18
Dummy
W4
W21
22N
275V
C112 6435
W5
W40
6871
MC7915CT
Neg15Reg
.
TO220
35V
1000U
330U
RT
V
R180
R179
RT
V
RT
V
C116 5266
680N 250V
W22
X15
C87
CHASSIS
BLK
PRI
D19
350v
GRN W19
C113
6451
250V
4N7
1/2W
47K
4007
1/2W
47K
6574
6888
HER508
D16
100N
LV_PS
W1
C91
250V
220N
5882
SHORT AXIS
W15
W10 D15
4044
D9
4007
4007
LV
W13
HV W14
HV
6888
HER508
H2
22R
5.0W
5882
100R
1.0W
R185
8799
.
250V
220N
U6
D13
C84
U7
RED
HER508
6888
C90
RT
V
.4"Fins
3692
8799
HI V
16AWG
HER508
6888
RED
RED
4 CIR
D11
C81 5635
100R
1.0W
R184
4
4007
C82 RT
V
25V
100U
3
D12
4007
2
RT
V
5635
C80
YEL
CT D14
W12
W2
1
GRYGRY
LV
1000U
35V
RT
V
D10
M1353 V4.00
WHITE
JA WIRING
100 VAC
WHITE
CH1335U
#3698
POWER
#3698
AMP MODE
16AWG
W16
Dummy
Dummy
.4"Fins
W29
22U
350V
R205
1.0W
10K0
RT
V
450V
10U
RT
V
R178
10K0
1.0W
450V
10U
R220
R214
470K
470K
C101
5959
R212
RT
V
X8001
V4.00
4K7
1.0W
5958
C110
470K
2K2
2.0W
350V
22U
WHT
W20 Choke
PWR
VIO W3
1000U
35V
R181
22U
350V
350v
R171
C109
5958
RT
V
X2
YCS90
YCS50/50H
YCS30
5958 R203
C93
4K7
C86
5959
C100
R182
M1295
M1353
M1357
X1
6574
HER508
6888
3538
1M
C88
5635
RT
V
R172
150K
2.0W
5618
C89
22U
350V
TO220
Pos15Reg
MC7815CT
6872
100N
R183
350V
22U
RT
V
330U
D40
.
BLK
C92
RT
V
150K
2.0W
-
BRN
W6
.
WHT
W17
.
W8
WHT LINE
WHT
PRI
W9
HVCT
VIO
W11
LINE
W7
BLK
5958
470U
25V
To_PowerAmp
RT
V
C83
C85
H1
3692
25V
100U
YCS50H
5958
C107
RT
V
R219
470K
RT
V
350V
22U
R221
C106
5958
WHTChoke
W18
Dummy
W4
W21
22N
275V
C112 6435
W5
W40
6871
MC7915CT
Neg15Reg
.
TO220
35V
1000U
330U
RT
V
R180
R179
RT
V
RT
V
C116 5266
680N 250V
W22
X15
C87
CHASSIS
BLK
PRI
D19
350v
GRN W19
C113
6451
250V
4N7
1/2W
47K
4007
1/2W
47K
6574
6888
HER508
D16
100N
LV_PS
W1
C91
250V
220N
5882
SHORT AXIS
W15
W10 D15
4044
D9
4007
4007
LV
W13
HV W14
HV
6888
HER508
H2
22R
5.0W
5882
100R
1.0W
R185
8799
.
250V
220N
U6
D13
C84
U7
RED
HER508
6888
C90
RT
V
.4"Fins
3692
8799
HI V
16AWG
HER508
6888
RED
RED
4 CIR
D11
C81 5635
100R
1.0W
R184
4
4007
C82 RT
V
25V
100U
3
D12
4007
2
RT
V
5635
C80
YEL
CT D14
W12
W2
1
GRYGRY
LV
1000U
35V
RT
V
D10
M1353 V4.00
WHITE
N.A. WIRING
120 VAC
#3698
POWER
CH1335U
WHITE
#3698
AMP MODE
SERVICE BULLETIN
Tube Bias Adjustment
1. Adjust the amplifiers bias when in the 50W mode (YCS50/H) or
90W mode (YCS90). A speaker/load should be connected at all
times when amplifier is powered.
2. Turn the amplifier on; allow it to warm up for 2-3 minutes.
3. Once the amplifier is warmed up, make sure the amplifier is out
of Standby mode. Do not apply any input stimulus (signals etc.).
Products Affected
Traynor YCS50,
YCS50H & YCS90
4. Using a meter set to measure mV DC, attach the negative
(black) probe to the GND. Place the positive (red) probe on TP1
5. Adjust the Bias Trim Pot until you measure 75mv DC between
GND and TP1.
Measure the bias between GND and TP2. It should also measure as 75mv DC. (For the YCS90 the measurements should
read 75mV on Tp1, Tp2, TP3 and TP4 which signifies that all
tubes are matched).
GND
Bias Trim Pot
YCS90 tubes
TP1
TP2
Power Mode
Switch
TP3
TP4
U.S.A.
Canada
Voice: (905) 837-8481
Fax: (905) 837-8746
Voice: (716) 297-2920
Fax: (716) 297-3689
www.yorkville.com
Yorkville Sound Inc.
Yorkville Sound
550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA
4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA
SERVICE-BULLETIN-Bias-Adjust-YCS-00-1v0 • May 3, 2010
Printed in Canada
REAL Gear.
REAL People.