Download SERVICE MANUAL TRAYNOR YCS90

SERVICE MANUAL
MODEL TYPE: YS1067
TRAYNOR YCS90
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-YCS90-00-1v3.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)
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
THIS DEVICE IS FOR INDOOR USE ONLY!
CE PRODUIT EST POUR L’USAGE À L’INTÉREUR SEULEMENT
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.
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.
Clean only with dry cloth.
Packaging: Keep the box and packaging materials, in case the unit needs to be
returned for service.
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-4v8 • April 14/2011
Specifications
Model: YCS50 / YCS50H / YCS90
Type: Combo / Head / Combo Guitar Amplifiers
Cabinet Impedance (ohms): 8 / na / 8
Power @ min. impedance (Watts): 50 / 50 / 90
Minimum Impedance (ohms): 4 ohms on all models
Burst Power - 2 cycle: 60 / 60 / 110
Speaker Configuration - LF (Size / Power): 1 12-inch 60 watts / n.a. / 2 12-inch 120 watts
Input Channels: 1
Channel 1 - inputs: 1-1/4-inch shared with channel 2
Channel 1 - controls: Gain, Boost Level, Volume, Treble, Mid, Bass,
Reverb, Effects Return
Channel 1 - switches: Boost, Modern, Scoop
Channel 2 - inputs: 1-1/4-inch shared with channel 1
Channel 2 - controls: Gain, Volume, Treble, Mid, Bass, Reverb, Effects
Return
Channel 2 - switches: Bright, USA/Brit, Expander
Channel Switching: 2 Channels, Boost on Channel 1, Footswitchable
Master Volume Control:
Main Tone Controls:
Master Outputs:
Line Out (type / configuration):
Line Out Sensitivity (Vrms):
Effects Volume:
Effects Loop / Location:
Effects Footswitch / Function:
Effects Return Sensitivity (Vrms):
Internal Reverb / Effects:
LED Indicators:
Protection:
External speaker output / location:
Other Features:
Dimensions (DWH, inches):
Dimensions (DWH, cm):
Weight (lbs / kg):
Yes
Presence, Resonance, Voice
Preamp Out (TRS), D.I. Out (XLR), Effects Send
with Control (TRS)
Preamp Out (TRS), D.I. Out (XLR), Effects Send
with Control (TRS)
300 mV
Master send, dual returns
Rear
Reverb and Effects Return Footswitchable
300 mV
Accutronics Dual Spring Long Tank
Ch1, Ch2, Boost, Power/Standby
Mains Fuse
1 (rear panel)
Class A low power mode 15/15/25 Watts
10.5x25x21.5 / 10x27x11 / 10.5x27.5x21.5
27x64x55 / 25x69x28 / 27x70x55
48lbs./22kg / 38lbs./17kg / 51lbs./23kg
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
B
A
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
Preamp Headers
1
DOWN
8 W20_:A
250V
ALTERNATE
2X_TRIODE_HCT
{Body}
.
R13
1/4W
47K
GND
RING
K2:A
C7X
63V
.
C1
1N
GND
GND
W26_ BLK
#18
W26 BLK
#18
R11
47K
LVGND
8
DOWN
UP
DOWN
.
Alternate
+15V
R209X
SOLID
CLN_GR
P3:A
M MID
8
W20:D
W20_:D 8
WIR
.
220N
C8X
63V
R4X
1K5
.
R26
220K
R9
100K
.
4
8
5
.
U9:A
-15V
Alternate
6
GND
2M2
1/4W
R113
R115
1/4W
39K
.
GND
.
220K
1/4W
R27
6N8
C84
100V
R126
1/4W
1M
.
GND
W21:D
V+
.
R14
1/4W
100K
P16:A
M CL VOLUME
.
R145
1/4W
100K
.
500K
15A
4425
TL072
U9:C
R146
1/4W
100K
P19:A
BOOST LEVEL M
R21X
220K
4N7
C83
250V
V-
Alternate
500K
15A
4425
2X_TRIODE_HCT
{Body}
8 W20:C
R18
1/4W
100K
R69
3
.
W20_:C 8
1/4W
47K
.
8 W20_:E
W20:E 8
.
Val
V1:A
P4:A
M CL GAIN
FIL-
5
250V
4
C12X
47N
CLN_GR
500K
15A
4425
100V
CLN_OUT_PL
1/4W
22AWG
22AWG
WIR
LVGND
R15
1/4W
47K
DOWN UP
S6:A
3522
Contour
BRIGHT
S1:B
S1:A
3522
20K
15A
4423
V2:C
2X_TRIODE_HCT
{Voltage}
R210X
SOLID
470P
C44
250V
CLN_OUT_PL
P2:A
M BASS
.
4
113K
R7X2
500K
15A
4425
FIL-
NGRID
4
400V
.
LVGND
V1:C
2X_TRIODE_HCT
{Voltage}
W21_:D 8
C11
1N
100V
WIR
PGRID
8
W30:H 8
1/4W
C2
47N
SPLITTER
7
_W21
P1:A
M TREBLE
.
+225V
6
W30:F 8
W30:G 8
-FDBK
+200V
100K
1B
4424
C3
47N
6
400V
R208X
SOLID
LOW+
LVGND
XF_P1
SPLIT_IN
3
GND
5
W30:E 8
STANDBY
LOW+
4
W30:D 8
OD_OUT_PL
GND
1/4W
22AWG
V3:C
2X_TRIODE_HCT
{Voltage}
.
400V
C98
1N
FIL-
3
GND
LOW+
5
CLN/BOOST
AMPLIFIER
1/4W
To_IG
W11_
R68
220K
STANDBY
2
W30:B 8
GND
C10
400V
1U
R3X
1K
1
W30:A 8
GND
W30:C 8
1N
1/4W
Input
GND
.
8 W20_:B
47P
C94X
100V
J1X
3682
GRN
R2X
1M
1/4W
1/4W
GND
NET00142
OD_GR
.
.
STANDBY
CLN_OUT_PL
ALTERNATE
_W20
R20
1/4W
220K
.
2
R52
1/4W
100K
.
W20:B 8
3
R19
1/4W
220K
250V
EQ Shift
S8:D
3440
1/4W
6541
C9
4N7
ALTERNATE
1/4W
J15
W20:A 8
1/4W
10N
C48
100V
R1X
1/4W
2K21
6541
UP
J15_
EQ Shift EQ Shift
S8:B
S8:A
3440
3440
2
3
W21_:C 8
GND
UP
ALTERNATE
3700
1
W20:F
GND
CLN_GR
.
Val
V1:B
8
NET00142
INPUT_PL
INPUT_PL
INPUT
To_Input
To_Input
4
3440
S8:C
EQ Shift
NET00142
Contour
3522
S6:B
DOWN UP
1
DOWN
INPUT
C21X
100N
DOWN
2
INPUT_PL
#18
YEL W25
UP
#18
W25_ YEL
UP
.
113K
R7X1
1/4W
+200V
Input Stage
6
W20_:F 8
R17
1/4W
47K
C85
1N
.
400V
R147
24K
TL072
.
C86
470P
R116
1/4W
15K
D20
4148
.
U9:B
50V
.
100K
1/4W
R133
3700
3700
GND
7
7
+225V
220K
R28
W20_:H 8
.
R5X
1K2
MINI
470N
C19X
63V
120K
R73
.
1N
C15X1
400V
470N
C20X
63V
R6X
1K
.
GND
1
8
K1:A
4N7
C24
250V
.
8 W21_:A
C18
100N
P9:A
M OD VOLUME
10K
R71
20K
15A
4423
P8:A
M MID
100V
BC550C
Q23
5101
63V
TO92
100V
.
Alternate
500K
15A
4425
C89
10N
R41
100K
R158
22K
R150
1/4W
100K
.
R151
22K
.
+15V
C30
330N
.
+225V
C88
150N
R72
1.0W
4K7
63V
63V
+200V
.
.
R149
1/4W
82K
100N
C90
63V
.
-15V
GND
9
-15V
10U
C108
450V
.
TO_PRE-OUT
U1:B
.
R148
1/4W
8K2
R24
4K7
TL072
U1:C
GND
.
8
8
3700
P7:A
M BASS
R152
82K
C5
47N
.
R22X
120K
GND
63V
V+
.
1/4W
W20:H
R70
1M
1/4W
8
1/4W
OD_GR
7
.
W21:A 8
2X_TRIODE_HCT
{Body}
R23X
1/4W
120K
OD_GR
W20_:G 8
R25X
1/4W
120K
200V
Alternate
Alternate
+15V
250V
C29
220P
100V
R43
1/4W
120K
V-
.
C17X
1N5
.
500K
15A
4425
C47
4N7
.
1/4W
2X_TRIODE_HCT
{Body}
C4
100N
R74
1/4W
120K
R29
1/4W
180K
1/4W
2N2
C45
.
Val
V2:A
.
1/4W
.
Val
V2:B
8 W21_:B
R12
43K
1/4W
400V
2
250V
Modern
3522
S5:A
DOWN UP
C16X
2N2
C22X
100N
Modern
3522
S5:B
DOWN UP
400V
1/4W
P5:A
M OD GAIN
C23
2N2
1/4W
400V
1/4W
500K
15A
4425
W20:G
220P
C43
100V
OD_OUT_PL
.
10N
C13
100V
8
W21:B 8
OD_OUT_PL
GND
P6:A
M TREBLE
1/4W
C14X
400V
1/4W
R9X
113K
1/4W
100K
1B
4424
1N
8
9
1/4W
.
1/4W
2M2
R114
R10X
113K
+225V
K1:B
1/4W
.
400V
470P
C15X
250V
4
OD Stage
K2:B
DOWN UP
S4:B
S4:A
3522
Scoop
C6
1N
GND
10
10
GND
GND
To_PowerSupply
-15V
+15V
LVGND
LVGND
4
4
4
4
W5:D
W5:C
W5:B
W5:A
Product
YCS50/90 Preamp
Gain/EQ
11
PCB# M1294
Date: Thu Dec 06, 2007 Rev: 1.01
Filename: M1294V200sch.sch2002
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Q
11
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
1
1
+15V
R35
4K7
R31
10K
R36
2K
.
1/4W
1/4W
R38
47R
R40
100R
T
.
R
S
MPSA06
R34
1/4W
10K
Q6
5101
22U
C25
50V
TO92
D21
4148
D22
4148
D
D23
4148
3
D24
4148
LVGND
TO92
.
.
C
R48
10K
R46
4K7
.
CH1
LD2 CH-SELECT
S2:A
S2:B
YEL
5907
3522
.
-15V
Alternate
+15V
1/4W
.
TO92
.
Q15
5102
UP
BC550C
.
B
DOWN
TO92
.
R67
1/4W
470K
A
R64
1/4W
470K
BC560C
R45
1/4W
1K
Q4
5103
R66
1/4W
470K
FT.SWITCH
J2
.
1/4W
Q3
5103
R65
1/4W
470K
-15V
63V
.
1/4W
3
2
TO92
Gold Gold Gold
MPSA06
.
Q12
5101
.
C26
100N
R61
1/4W
1K
R23
22K
1N5240BRL
D10
100N
10V0
C22
0W5
BC550C
63V
1/2W
1/4W
2.0W
4148
D1
.
.
.
2
R30
2K2
R25
100K
LVGND
+15V
R53
2K2
1/4W
K1:C
1/4W
CH2
LD4
GRN
5908
1/4W
3700
1/4W
+15V
MINI
R60
2K2
MINI
4
3700
.
BC560C
D19
4148
K2:C
R62
10K
1/4W
1/4W
4
RVB/EFX DFT
J6
S
R
Q20
5102
LVGND
TO92
T
.
BC560C
Q19
5102
LVGND
R63
10K
TO92
C27
1N
R32
10K
R39
47R
.
.
400V
100N
C21
63V
R21
22K
.
R22
22K
.
LVGND
1/4W
1/4W
1/4W
4148
D2
100N
C20
63V
1/4W
5
Gold Gold Gold
1/4W
5
R37
220R
-15V
-15V
.
BC560C
MPSA06
.
MINI
.
R47
4K7
.
-15V
7
2N5401
2N5551
MPSA06
MPSA13
MPSA43
MPSA56
MPSA63
S3:A
3522
Alternate Alternate
UP
TO92
R42
10K
DOWN
R33
1/4W
10K
Q7
R44 5101
2K2
TO92
DOWN
TO92
BOOST
LD1
RED
5906 BOOST
1/4W
Q5
5103
UP
6
Q16
5102
BC550C
1/4W
2U2
C28
63V
1/4W
6
BOOST
S3:B
3522
Potlist
YCS50/90
MODEL(S):-
MODEL(S):REF
FUNCTION PART# KNOB
BC550C
BC560C
J109
2N5638
8
E BC
TO-92
M1294 PCB_DATABASE_HISTORY
LVGND
C B E
TO-92
DSG
TO-92
6882_PC
9
{NEW}
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
TREBLE
BASS
MID
CL GAIN
OD GAIN
TREBLE
BASS
MID
OD VOLUME
Resonance
MASTER VOLUME
Send Level
4424
4425
4423
4425
4425
4424
4425
4423
4425
4425
4423
4417
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
FX Ret 1
Presence
REVERB1
CL VOLUME
REVERB2
FX Ret 2
BOOST LEVEL
F
F
F
F
F
4423
4423
4423
4425
4423
4423
4425
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
10
"STYLE_P32"
#
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
2007/08/27
2007/12/10
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
7
MODEL
VER# DESCRIPTION OF CHANGE
1.00
RELEASED FOR PRODUCTION
2.00
REVISED BOARD PER PC#7333
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
V
N
8
9
10
"STYLE_P28"
Product
YCS50/90 Preamp
Switching
11
PCB# M1294
Date: Fri Dec 07, 2007
Rev: 1.01
Filename: M1294V200sch.sch2002
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Sheet 3 of 4
YsType: YS1067,4
Q
11
F
100V
100V
R
S
-
-
100V
-
IG
TL072
C38
100N
63V
1/4W
Gold Gold Gold
-15V
MINI
C122
2N2
-
.
R255
1/4W
10K0
TO_PRE-OUT
1/4W
50V
100N
C50
63V
J10
6541
GND
2N2
C128
400V
RevSend
.
4K7
1/4W
R95
R96
470K
.
U7:B
R93
1/4W
560R
J9
GND
6541
63V
C46
2U2
1N5242B
0W5
100V
R253
10K0
MINI
D5
4148
.
TL072
R101
1/4W
4K7
C51
330N
C126
2U2
D3
4148
R120
1/4W
2K2
.
63V
R103
1/4W
4K7
R100
33K
U1:A
-FDBK
GND
.
8
8 W21_:H
R10
1K
6
C39X
10N
.
SPLIT_IN
W21:F
2.0W
Mini
R54
1.0W
1K
.
.
220R
1/4W
R153
6
-15V
Alternate
-15V
LD3
Power
6398
RED
R108
1/4W
10K
16V
.
680P
C56
100V
8
7
R73X
82K
TL072
-15V
U8:B
C58
220P 100V
R107
1/4W
10K
R109
1/4W
10K
GND
C41
150N
.
{Body}
2X_TRIODE_HCT
63V
V3:A
Val
.
GND
R78
3K9
63V
W21:E
5
C15
22U
R105
1/4W
620R
C16
22U
7
.
LINE.OUT
50V
MINI
J8
MINI
50V
R7
220K
.
3923
IG
.
R6
1/4W
82K
3682
YEL
8
NET00132
8 OHM
W18
.
XF_P1
S9:B
4ohm/8ohm
3424
3682
GRN
2
S9:A
4ohm/8ohm
3424
4 OHM
W17
T
R
S
EXT SPEAKER
J13
#18
YEL W35_
-
-
#18
BLK W33_
GND
#18
BLK W33
SPKR
5
{Description}
{Hz}
#18
YEL W35
E
9
GND
SPKR
-Plate
1
6
NGRID
3682
BLK
W21:G
GND
W19
T
R
S
-
-
-
INT SPEAKER
J14
10
GND
Alternate
Product
GND
YCS50/90 Preamp
Effects/Master
PCB# M1294
Date: Thu Dec 06, 2007 Rev: 1.01
Filename: M1294V200sch.sch2002
LVGND
D
R104
1/4W
620R
4
XF1
Part#
LVGND
.
.
3
Alternate
XF-OUT-CT
P14:A
M Presence
.
R71X
100K
W21_:E 8
8
+Plate
100V
20K
15A
4423
SPLITTER
R76X
1M
16V
R16
1/4W
2M2
.
.
220P
C127
200V
.
C61
33U
R8
1/4W
220K
.
U2:A
STANDBY
DOWN UP
S7:A
3522
STANDBY
STANDBY
3522
S7:B
DOWN UP
6399
YEL
LD5
Standby
NET00246
W21_:G 8
W21:C
C7
3N3
.
10MM
8
NET00085
C40X
100N
PGRID
2X_TRIODE_HCT
{Body}
R74X
1/4W
470R
1/4W
+15V
R59
220K
.
Val
V3:B
R75X
1M
R77X
1/4W
10K
_W4
+15V
W21:H 8
100V
SPLIT_IN
NET00273
NET00280
C60
33U
U2:C
.
Resonance
M
P10:A 500K
4425 15A
Splitter
1/4W
1/4W
-FDBK
.
GND
TL072
XF_P1
8
C
R112
47R
C57
220P 100V
R106
1/4W
10K
+15V
TL072
GND
NET00236
.
68N
C54
100V
R102
1/4W
4K7
.
U2:B
63V
NET00067
B
IG
.
U8:A
GND
1/4W
.
1/4W
R98
4K7
GND
A
5
J5
Q17
5104
MASTER VOLUME
M
20K P11:A
15A 4423
NET00089
11
Headphone
R110
1/4W
470R
16V
3N3
C55
100V
W21_:F 8
_W3
TL072
U8:C
TO92
TO_PRE-OUT
NET00086
TO92
R111
47R
MPSA56
33U
C37
16V
LVGND
.
33U
C59
16V
.
.
NET00258
R118
1/4W
10K
R91
33R
GND
10
+15V
U10:A
NET00141
9
MPSA06 +15V
-15V
1/4W
63V
#18
.
RED W7_ 220R
1/4W
R154
HDPHN HDPHN
Q18
5103
These parts are
not stuffed.
C53
33U
GND
GND
#18
W7 RED
.
1/4W
1/4W
1/4W
8
4
-15V
TO_HPHN
C52
330N
R99
33K
D
C
-15V
R257
6K8
-15V
100N
C121
63V
3
D9
4148
B
A
R117
1/4W
4K7
.
100N
C120
63V
D8
4148
2N5638
Q11
5119
TO92
GND
TO92
7
100N
C119
63V
D7
4148
2N5638
Q10
5119
TO92
.
TO_HPHN
100N
C115
63V
20K
15A
GND
4423
C92
33U
P15:A
REVERB1 M
2N5638
Q9
5119
TO92
.
+15V
100N
C117
63V
16V
.
R94
1/4W
82K
.
C49
100V 100P
.
R1
47R
R97
1/4W
15K
TL072
R92
1/4W
2K2
GND
100N
C114
63V
D6
4148
4
C125
15N
MINI
C123
2N2
R2
47R
U10:C
1/4W
IG
16V
.
2N5638
Q8
5119
TO92
GND
TL072
V-
R254
1/4W
10K0
IG
20K
15A
4423
C93
33U P17:A
REVERB2 M
GND
MINI
6
1/4W
+15V
R121
1/4W
15K
1/4W
-
T
MINI
C35
220P
8
-
R
100V
R252
1/4W
10K0
100V
GND
.
8
S
C124
15N
R256
6K8
50V
V+
PRE-OUT
J12
1/4W
5
.
Q2
5104
0W5 D11 12V0
1N5242B
12V0 D12
R51
1/4W
10K
.
C36
100P
100V
MINI
50V
.
R89
1/4W
24K
R4
100K
V+
C40
22U
R5
100K
4148
D4
.
TL072
MPSA56
MINI
R247
1/4W
620R
22U
C42
-
V-
50V
.
.
IG
R3
1/4W
470R
.
R249
1/4W
10K0
R79
1/4W
220K
R246
1/4W
620R
50V
R155
100K
.
TL072
2
C91
33U P13:A
FX Ret 1 M
16V
4
C118
2N2
U7:A
U7:C
MINI
4
R58
1/4W
10K
22U
C12
20K
15A
4423
4
22U
C39
R90
1/4W
10K
Voice
3522
S10:B
S10:A
DOWN UP
50V
T
1/4W
R250
1/4W
10K0
8
U10:B
TO92
V+
R251
1/4W
10K0
GND
U3:A
.
1/4W
R
50V
T
HeadPhGnd HeadPhGndRevRet
Q1
5103
GND
MINI
MINI
S
+15V
V-
AMP-IN
J11
22U
C14
GND
R57
1/4W
10K
22U
C8
MPSA06
4
50V
R
#16
#16
GRN W12_ GRN W12
.
47K
1/4W
R87
.
C94
33U P18:A
FX Ret 2 M
16V
.
.
EFF.RETURN
EFF.SEND
J4
S
J3
#16
GRN W11 -
8
T
C97
2N2 50V
R248
1/4W
10K0
Q
RING
V+
50V
MINI
+15V
R80
1/4W
220K
P
50V
GND
3
O
20K
15A
4423
R122
1/4W
10K
R88
1/4W
24K
50V
TL072
220P
C31
N
1/4W
V-
U3:C
10K
1/4W
R55
M
1/4W
4
R50
1/4W
620R
U3:B
C34
220P
.
C17
22U
L
1
-15V
10K
1/4W
R56
.
2
K
8
.
J
MINI
C19
22U
.
16V
I
R49
1/4W
620R
R86
1/4W
47K
10K
5B LIN
4417
33U
P12:A C33
M Send Level
H
V+
C32
220P
1
G
V-
E
1/4W
D
1/4W
C
1/4W
B
A
F
G
H
I
J
K
L
M
N
O
P
Sheet 4 of 4
YsType: YS1067,4
Q
11
PCBM NOTES
BOARD TO BE DRILLED 2 UP WITH A STEP AND REPEAT DISTANCE OF
X 0.000 AND Y8.000 IN. ALL PANEL AND BOARD HOLES TO BE REPEATED
BREAK IN TWO ALONG THE ZIPPER IN THE AREA INDICATED, BEFORE
SCREENING AND ETCHING.
ETCH
GUIDE
3490
ETCH
GUIDE
ETCH
GUIDE
X
XXXX
X
220K
R8
220K
620R
22U
50V
220P
C58
10K
10K
R7
R105
620R
X29
U8
C57 220P
R58
X41
X
R104
R106
R107
R88
RT
V
C16
X
XX
24K
R89
RT
V
TL072
EFF.RETURN
R4
R5
24K
C34 220P
C35 220P
620R
R50
50V
22U
U3
10K
1
2
C15
100K
100K
R49
R8
6
220P
C32
47K
R87
J8
J4
J3
EFF.SEND 22U
22U
C17
50V C8
C12 50V RT
V
R57
10K
SEE PRODUCTION
NOTE, PC# 7446
ONLY YCS90
W4_
To_Preamp_4
-
RT
V
R56
-
7
-
TL072
R55
X32
X68
R252
G1
G3
G2
-
-
7
10K
R108
10K
R109
16V C60
33U
RT
V
4004
GND
NET00141
TO_PRE-OUT
GND
NET00089
GND
NET00067
NET00273
GND
C36
R255
R247
620R
R254
10K0
2N2
C123
10K0
10K0
10K0
2N2
C122
15N
C124
15N
C125
47R
R2
D12
R257
R256
-
620R
C19
RT
V 22U
50V
16V
33U
P12
10K
C33
4417
10K
47K
RT
V
22U
50V
TL072
R51 SIG
J9
R3
Send Level
220K
R246
620R
R155
33R
100K
10K
470R
47R
D11
12V0
12V0
R
nd CA
2N2
C128
RevRet
R91
6K8
6K8
vS
e
G1
RCA
U10
Re
SIG
100N C119
X9
U7
22U
50V
#16
GRN
220P
C31
X69
D4
4148
4148
D5
R253
C50
100N
G2
G3
J12
C40 PRE-OUT
R251
100N
X8
65
41
C40X
22U C39
50V
2U2
82K
R94
63V
R92
2K2
X31
100P
C49
Q1
MPSA06
X40
TL072
Q2
MPSA56
R1
X22
100N
R95
R80
10K0
C42
-
RT
V
22U
50V
C14
C117
10K0
R250
C38
R249
10K0
100N
C118 2N2
R248 10K0
2N2 C97
R73X
10K
1M
R76X
SPLIT_IN
GND
-FDBK
W30
R96
470K
4K7
C46
220K
-
7
100P
R208X
C127
X42
220P
R71X
82K
100K
To Power Amp
R75X
1M
R74X
470R
R25X
120K
R73
X48
(5/ 5)
RT
V
3732
RETURN
WHT
Jig Screw
J11
R93
560R
CLN_OUT_PL
NET00142
OD_GR
GND
INPUT_PL
M1294 V200
(2/ 5)
Val
R23X
To_Preamp_3
W21_
GND
3583
X21X
X33
3583
W20_
120K
2N2
R209X
C19X 470N
To_Preamp_2
1K
R6X
C17X
R22X
1N C15X1
120K
OD_OUT_PL
STANDBY
LVGND
XF_P1
C39X
R77X 10N
2N2
220K
R70
R21X
47N
R28
1M
C23
C16X
R210X
100N
X34
1K2
R5X
GND
CLN_GR
GND
RCA
6541
C21X
GRN
To_IG
RT
V
2N2
1K
1M
47P
C94X
C7X
RT
V
470N C20X
1N5
X25
113K
R9X
470P
X12
G1
6541
G3
G2
R7X1
113K
W11_
63V
R3X
R2X
NET00085
NET00086
NET00258
NET00246
NET00280
LVGND
+15V
-15V
NET00236
Input
TIP-SW
YEL
G2
G3
RCA
7
G1
SIG
INPUT
To_Input
J15_ SIG
#18 W26 BLK GND
TIP
1U
C14X
1N
C22X
100N
AMP-IN Gold
IG
W11
RED
SEND
1
YEL
3921
X35
C8X
Val
0
J1
W35
SPKR
#18
X30
J1X
RT
V
R4X
220N
Val
.
3732
Gold
7
-
4
65
BLK
-
-
RING-SW
RING
-
W33
#18
GND
E
J14
INT SPEAKER
M1294 V200
V
EE
SL
(3/5)
4004
C12X
RT
V
V3
120K
M1294 V200
W3_
82K
W25_
YEL
#18
INPUT
W26_
#18
BLK
GND
C45
113K
R10X
EXT SPEAKER
R6
To_Preamp_1
J10
GRN
4 OHM
220K
10N C48
R1X
2K21
To_Input
YEL
8 OHM
#18
SPKR
R69
47K
J6
RVB/EFX DFT
FT.SWITCH
W25 #18
YEL
.
W17
113K
R7X2
V2
R79
Gold
50V
22U
#18
GND
3732
V1
C44
3538
10K
BLK
BLK
GND
470P
Gold
J2
W18
W35_
W33_
Gold
DPDT SLID
S9
J13
W19
Gold
7
1K5
-
Gold
10U
450V
X47
C108
R72
TOP
7
3424
4ohm/8ohm
5959
4K7
1.0W
WIP
Gold
BOT
-
7
C15X
5B LIN
Gold
-
47N
C2
CR
INPUT_PL
GND
CLN_GR
GND
CLN_OUT_PL
NET00142
OD_GR
GND
REVERB2
4423
SEE LAYOUT DOCUMENTATION
CL
CR
WHT
Voice
NOL
1K
33U
16V
C37
3522
1.0W
1K
S10
NCR
STANDBY
R54
Alternate
NCL
YEL
Standby
6399
P11
X66
X27
C61
LD5
4423
MASTER VOLUME
NOR
P18
FX Ret 2
Alternate
W8
5989
4036
W5
To_PowerSupply
S7 WHT
220K
2.0W
R59
ETCH
GUIDE
_W4
BUTTON
X61
X63
RT
V
P10
RING
X
220R
E
V
EE
SL
63V
2U2
2K2
R120
D3
R100
R99
R101
C51
Lay flat before RTV.
4K7
C126
4K7
4148
33K
33K
TL072
4K7
680P
C56
X62
3N3
4425
Resonance
R10
R16
2M2
RT
V
R78
LD3
RED
20K
15A
33U
16V
3K9
X1
C41
150N
4423
BlankSize - 19000x16000
_W21
C52
-15V
Q9
15A
C7
+15V
15A
C94
C93
X74
X26
15K
R121
15K
4148
D6
15A
LVGND
33U
16V
20K
Power
6398
330N
500K
Presence
2N5638
RT
V
330N
X
(4/5) Headphone
BUTTON
33U
16V
C91
10K
10K
X73
D21
R64
4148
470K
4148
470K
100N
100N
C121 C120
20K
D7
4148
TL072
Q8
RT
V
P14
X50
X44
4148
Q10
D8 2N5638
X52
R97
Q11
X43
RT
V
4423
C53
33U
16V D22
R65
X51
RT
V
P13
FX Ret 1
2N5638
X7
R90
R122
X76
X70
R43
R74
X5
470K
D9
R67
15A
P17
NOR
R66
4148
470K
R62
R63
10K
220P
20K
3664
P2
WHT
S6
Contour
NOL
C29
BUTTON
10K
X6
W21
W1
3676
R25
4148
D23
4148
D24
U1
4N7
C47
C92
4423
W4
3535
LVGND
BASS
BC560C
R23
22K
X77
R22
22K
R21
16V
33U
15A
3522
4425
ETCH
GUIDE
_W20
100N
R149
82K
R150
100K
R115
R145
180K
R29
100K
C114
4N7
100N
6N8
X49
C84
TL072
CL
NCR
D10
100K
10V0
BC550C Q19 Q20
15A
Alternate
NCL
REVERB1
RT
V
C22 Q12 BC560C
22K
500K
4423
330N
16V
33U
MID
P3
C30
X56
X54
20K
GND
NET00141
TO_PRE-OUT
GND
NET00089
GND
NET00067
NET00273
GND
R52
47K
R11
4423
C115 100N
R116
15K
100K
R146
47K
R15
2K2
2K2
15A
2N5638
C3
R68
C83
39K
C85
4424
ORIGIN
_W3
1N
15A
47N
BUTTON
WHT
EQ Shift
1M
20K
3664
TREBLE
220K
100K
WHT
Scoop
R147
U9
NOR
BASS
P7
20K
P15
C20 100N
W2
3676
CR
BUTTON
C1
1N
X19
C98
1N
W20
1B
R126
R14
R17
P1
100K
X15
S4
NCR
CL
NOL
YCS50/90 Preamp
V200
Top Assy M1294 V200
LONG AXIS
3522
C4
Pcb Mech M1294 V200
VCD
Alternate
NCL
X59
R60
R53
4425
MID
M1294
(1 of 5 )
S8
3440
P8
500K
15A
C86
470P
D20
4148
24K
WHT
Modern S5
4423
100K
R152
NOR
C5
47N
100N
3522
R12
43K
82K
1N
R133
BC550C
4K7
X67
4424
TREBLE
C6
X64
15A
8K2
100N
C90
P6
BUTTON
CR
R148
C21 100N
R24
R44
2K2
X45
X46
NCR
CL
15A
GND
OD_OUT_PL
STANDBY
LVGND
XF_P1
SPLIT_IN
GND
-FDBK
INSERT
NET00236
NET00280
NET00246
NET00258
LVGND
+15V
-15V
NET00085
NET00086
ETCH
GUIDE
NCL
NOL
100K
47K
X14
C27
NOR
+
-
CLINCH
ORIGIN
P16
500K
CL VOLUME
WHT
BRIGHT
NOL
4N7
C24
R13
2M2
R113
4N7
C9
10K
R71
3522
1N
220K
220K
47K
NO
R20
NC
C
RELAY 2C
R158
C89
10N
20K
150N
1B
Q23
100N C18
C88
100K
Alternate
1N
C10
BC560C
2U2
63V
R19
220K
4425
OD VOLUME
22K
SHORT AXIS
3522
R33
Q5
MPSA06
R41
100K
4425
NCR
CR
15A
4148
D2
Alternate
CL
X20
X65
R26
220K
4148
D1
S1
NCL
R47
K2 3700
X23
D19
R18
X10
100K
X71
C
K1
3700
C11
1N
R32
10K
X24
X2
X4
220R
4148
R37
X3
BUTTON
NO
NC
220P
C43
P4
47R
R9 R39
100K
R30
3522
RELAY 2C
4425
CL GAIN
R35
C13
10N
10K
4K7
R27
C25
4K7
15A
22U
50V
2K2
2.0W
R61
1K
BC560C
47R
R38
C26
500K
5908
CH2
LD4 GRN
MPSA06
2M2
R114
2K
1/2W
NOR
10K
R42
P19
R27
RT
V
WHT
BOOST
NOL
4425
BOOST LEVEL
BUTTON
R46
4K7
R40
100R
3522
BUTTON
R36
MPSA06
Q4
CR
P9
500K
M1294 V200
220R
X
X X
CR
NOR
S3
NCR
CL
BC550C
Q7
R103
NCR
NOL
Q3
Alternate
NCL
C28
RT
V
C55
4K7
NOR
WHT
100N
CH-SELECT
1K
R45
P5
10K
R31
Q16
15A
3N3
C54
68N
R98
U2
CL
CR
4425
OD GAIN
500K
W10
3674
NCL
NCR
CL
+
LOC
NOL
10K
NCL
15A
BEC1
X55
X60
X58
RING-SW
S2
Alternate
500K
BEC
R151
22K
120K
120K
Q15
W3 3535
W6
3674
TIP
R34
BOOST
5906
RED
LD1
-
10K
+
LD2
CH1
5907
YEL
X18
R48
TIP-SW
-
BC550C
Q6
INTO WAVE
SEE LAYOUT DIAGRAM
PRODUCTION NOTES
M1294 YCS50 / 90
1. DO NOT STUFF the headphone circuit parts that have a large 'X'
through them. The DNS parts also have X shown on the
actual board on the silkscreen legend.
2. Lay C126 flat before RTVing.
3. Bend C21X as flat as possible towards components
R210X and X34 before RTVing.
4. Wave solder in the indicated direction.
5. YCS90 ONLY
T&R, Remove R256 and R257.
PC# 7446
ONLY FOR YCS90
T&R REMOVE R256 AND R257
SEE LAYOUT DIAGRAM
M1294
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
DATE
2007/02/08
.
.
.
.
.
.
2007/12/10
.
.
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
YCS50/90
VER# DESCRIPTION OF CHANGE
1.00
PC#7287, replace input eyelets with RCA jacks #6541
.
PC#7298, Change R94 from 180k to 82k, #4837 and
.
Change R91 from 47R to 33R, #4816
PC#7336, CHANGE R74 FROM 47K,#4834 TO 120K, #4851
.
1.01
CHANGE R98 FROM 2K2, #4847 TO 4K7,#4827
CHANGE R100 FROM 27K, #4833 TO 33K, #4840
.
CUT R91 CONNECTION AND RECONNECT IT TO W30 P4
.
2.00
REVISED BOARD PER PC#7333
PC#7446, ONLY FOR YCS90, T&R WILL REMOVE TWO
.
.
RESISTORS, R256 AND R257.
V
N
V
N
V
N
V
N
V
N
N
V
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
Potlist
YCS50/90
MODEL(S):REF
FUNCTION PART# KNOB
{NEW}
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
TREBLE
BASS
MID
CL GAIN
OD GAIN
TREBLE
BASS
MID
OD VOLUME
Resonance
MASTER VOLUME
Send Level
4424
4425
4423
4425
4425
4424
4425
4423
4425
4425
4423
4417
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
FX Ret 1
Presence
REVERB1
CL VOLUME
REVERB2
FX Ret 2
BOOST LEVEL
F
F
F
F
F
4423
4423
4423
4425
4423
4423
4425
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
PIN CONFIGURATION
2N5401
2N5551
MPSA06
MPSA13
MPSA43
MPSA56
MPSA63
EBC
TO-92
BC550C
BC560C
J109
2N5638
C B E
TO-92
DSG
TO-92
M1294 DRILL HISTORY
MODEL(S):#
1
2
3
4
5
6
DATE
2007/08/08
2007/12/10
D
D
D
D
YCS50/90
VER# DESCRIPTION OF CHANGE
1.00
RELEASED FOR PRODUCTION
2.00
REVISED BOARD PER PC#7333
V
N
V
N
V
N
V
N
H
H
1
+V
8
A
2
4
2K
4
5
G2
1P
6
3
7
2G 2
8
1G
7
B
3
6
-V
6882_PC
5
"STYLE_P28"
"STYLE_P32"
2P
1
9
12AX7A
HT
1K
4
5
G1
P 3
6
NC
H 2
7
H
NC
1
8
K
G3
5881WXT
A
B
C
D
E
F
G
H
I
J
K
M1296
1
1
MODEL(S):-
YCS90
VER# DESCRIPTION OF CHANGE
# DATE
1.00
1 2007/06/06
FIRST DESIGN
2 12-FEB-2008 1.01
REVISION PER PC7456
3 09-JUN-2008 1.02
PC7393: CHANGE R49 FROM 39K TO 43K #4878
4 14-JAN-2010 V02
CHANGE TO SCORE
5 D
V
N
6 D
V
N
7 D
V
N
8 D
V
N
9 D
V
N
10 D
V
N
11 D
V
N
12 D
V
N
13 D
V
N
2
3682
GRN
FIL
W10
R140
1/8W
100R0
2
FLMP
R141
1/8W
100R0
3
3682
GRN
3
V1:B
PENTODE
{Voltage}
FLMP
FIL
W11
V2:B
V3:B
V4:B
PENTODE PENTODEPENTODE
{Voltage} {Voltage} {Voltage}
3682
BLU
+PLATE
W12
TP5
R135
1/4W
820R
EL34
PENTODE
.
.
1/4W
R146
249K
R131
2R
R132
2R
.
.
1K8
R154
Val
V1:A R149
R136
1/4W
820R
2.0W
1K8
.
.
R133
2R
R134
2R
To_PreAmp
1
W30:A 8
2
W30:B 8
3
W30:C 8
.
.
C66
10N
C67
10N
PENTODE
EL34
R137
1/4W
820R
250V
1/4W
W30:D 8
6
R144
249K
.
Val
-
TP3
W30:E 8
PENTODE
EL34
R138
1/4W
820R
R139
2.0W
V3:A 1K8
.
W30:F 8
R142
2.0W
V4:A 1K8
.
.
Val
-
TP4
.
W30:G 8
W30:H 8
4
5
6
7
8
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
5
6
3682
GRN
OutCT
W14
250V
3682
BRN
.
100U
C76
16V
R257
220K
-PLATE
W13
7
.
Bias
2N5401
Q24
5108
TO92
M
10K P28
Lin 4520
D31
C77
10U
160V
.
R259
1/4W
10K
.
R50
1/4W
820R
.
1N5237B
D36
8V2
0W5
1/4W
R49
1/4W
43K
R258
220K
1/4W
7
8
V3:D
EL34
PENTODE
.
R143
249K
V2:D
.
2.0W
.
5
TP2
1/4W
R145
249K
2.0W
1/4W
250V
2.0W
C64
10N
Val
V2:A
4
250V
2.0W
TP1
2.0W
C65
10N
4
4148
R260
1/4W
18K
8
.
Product
YCS90 Output
Power Amp
9
PCB# M1296
Date: Fri Jan 15, 2010
Rev:V02
Filename: M1296V02sch.sch2002
A
B
C
D
E
F
G
H
I
J
Sheet 1 of 1
YsType:.
K
9
V3
BEC
Val
3984
LOC
820R
R132
TP3
2R
2.0W
R139
1K8
2.0W
R137
R146
RT
V
X15
10N
C66 5834
X16
2R
2.0W
R131
X7
X6
249K
249K
R145
TP1
R154
1K8
2.0W
Val
3984
V2
RT
V
X10
-
W14
W13
RED
OutCT
BLU
+PLATE
BRN
-PLATE
X11
C 64
10
5834N
R135
820R
W12
R142
X19
Q24
R133
2.0W
2R
TP2
Bias
18K
43K
5834 10N
C67
R138
R144
R143
249K
RT
V
249K
10K
4148
2N5401 D31
R260
R49
R259
10K
820R
R258
220K
C77
P28
10U
160V
2R
2.0W
R134
TP4
RT
V
X3
X2
X1
M1296
Val
3984
V4
YCS90 Output
V02
X18
R257
220K
X13
R149
1K8
2.0W
V1
RT
V
820R
R136
R141
100R0
C76
To_PreAmp
100R0
R140
100U
16V
D36
8V2
R50
W30
W10
C6
5
10N
583
4
FIL
GRN
W11
Val
3984
FILGRN
BlankSize - 16000x10900
StepAndRepeat - [email protected]@0.000
1K8
2.0W
3538
820R
To_PowerSupply
SHORT AXIS
TP5
W29
3538
CLINCH
ORIGIN
INSERT
VCD
ORIGIN
LONG AXIS
SEE LAYOUT DOCUMENTATION
SEE LAYOUT DIAGRAM
M1296
MODEL(S):-
YCS90
# DATE
VER# DESCRIPTION OF CHANGE
1.00
FIRST DESIGN
1 2007/06/06
REVISION PER PC7456
2 12-FEB-2008 1.01
PC7393: CHANGE R49 FROM 39K TO 43K #4878
3 09-JUN-2008 1.02
CHANGE TO SCORE
4 14-JAN-2010 V02
V
N
5 D
N
V
6 D
V
N
7 D
V
N
8 D
N
V
9 D
V
N
10 D
V
N
11 D
N
V
12 D
V
N
13 D
PRODUCTION NOTES
1. APPLY RTV TO C64, C54, C66 AND C67.
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
1
1
2
2
Variant Parts
C86 and C87
3
3
PCB# Value Part#
M1295 470U 5957
M1353 330U 6574
1
HI V
PWR
HER508
D40
D14
2.0W
HER508
4
W20
Choke
C86
350v
HER508
SCREEN
{Description}
BLK
3682
W18
Choke
COIL
R171
150K
BLK
3682
.
10K0
1.0W
R205
.
22U
C106
350V
10MM
SPLITTER
R221
2.0W
2K2
R212
470K
R214
470K
.
22U
C109
350V
1/4W
OUTX-F_CT
1/4W
OUTX-F_CT
16AWG
VIO W3
1/4W
16AWG
D13 W1 RED
HI2
R178
1.0W
10K0
.
R203
1.0W
4K7
+225V
4
.
10U
C100
450V
R219
470K
.
10U
C101
450V
HVCT
Gnds
D16
LVGND
Copper
Tie Here
Dummy 3682
W4
-
Dummy
W21
.
YCS50/50H: CH1335U
YCS90: CH1336U3682 HV
7 RED
6
3682
BLK
LINE
W7
3682
BRN
LOW+
3682
VIO
4007
HVCT
W11
+15V
{Watts}
TO220
3692
1000U
C80
35V
D10
W10
+15V
100U
C82
25V
100N
C84
63V
1
LV
W13
LVGND
1000U
C81
35V
D11
4007
TO220
{Watts}
D12
GRY
3682
4 YEL
250V
7
LVGND
CT
W14
. OUT
MC7915CT
3692
3682
BLU
9
PR2
8
PRI
W9 BLK
DPDT Switch
S15
4N7
C113
250V
3682
GRN
LV1
4 W2:D
-15V
-15V
MODEL(S):FIL-
.
2
GRN
GRN
1
250V
220N
C90 250V
CHASSIS
CHGND
W19
D19
220N
C91
4007
R179
47K
.
1/2W
LINE
W22
LV
W15
3
6
GND
4 W2:A
100N
C85
63V
U7
R183
5.0W
22R
1/2W
3682
WHT
3682
GRY GRY
4 W2:B
R180
47K
.
350V
C92
22U
X8001.PCB_DATABASE_HISTORY
IN
YEL
WHT-YEL
3682 W8
5
REF
LOW-
4007
100U
C83
25V
4 W2:C
-RAW
R181
1/4W
4K7
.
350V
C93
22U
R182
1M
.
35V
C88
1000U
1/4W
DPDT3
6 3682
5 GRY
T1
C116 680N
3
4
HV
W12
.
470U
C89
25V
LVps
2
BLK
3682
RED RED
R220
470K
GND
FIL+
R185
1.0W
100R
REF
4007
RED
PRI
W68
.
22U
C110
350V
.
U6
MC7815CT
IN
. OUT
D9
LV2
NET00000
R184
1.0W
100R
CHGND
HI1
Dummy 3682
W16
-
22U
C107
350V
0 W40
HER508
3682
-
GND
10MM
GND
5
WHT-BLK/YEL BLK-ORG
3682
W17 3682
W5
R172
150K
1/4W
C87
350v
2.0W
D15
HER508
GND
Power Amp
Header
FUSE
F1
9
T3.15A
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
7
#
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
.
YCS50, 50H, 90
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
Add YBA300 variant. Labeled AC tabs. Add mtg hole EC42.
V
Chng W2 to XH. Make blankX 18.325". pc#8018
.
1
2
3
4
5
6
7
8
9
10
11
12
13
D
D
D
D
D
D
D
D
D
D
D
D
D
V05
.
V
V
V
V
V
V
V
V
V
V
V
PC8160: Delete C112. Add score lines
No YBA300
N
N
N
N
N
N
N
N
N
N
N
Product
SCREEN
D
E
F
G
H
I
J
K
10
YCS50/90 Power Supply
Power Supply
C
9
SPLITTER
OUTX-F_CT
PCB# X8001
Date: Thu Sep 15, 2011 Rev:V05
Filename: X8001V05sch.sch2002
B
GG
+225V
11
A
8
L
M
N
O
P
Sheet 1 of 1
YsType:
Q
11
BREAK PANEL IN 2 ALONG THIS SCORE LINE BEFORE CLINCHING.
M1295 V05
ORIGIN
SCORE
StepAndRepeat - [email protected]@5.400
LONG AXIS
450V
10U
VIO
PWR
W3 N/C 120VAC
YEL
WHT
N/C 100VAC
YEL BLK/YEL 240VAC
22U
350V
R205
22U
350V
470K
470K
R220
R214
470K
2K2
2.0W
R221
RT
V
5958
RT
V
R212
5958
22U 350V
RT
V
C101
C107
RT
V
EYELET LEGEND
C110
5958
W18
HER508
6888
16AWG
R178
10K0
1.0W
5959
RT
V
W20
Choke C109
R171
W4
D40
5959
1.0W
10K0
22U
350V
R203
C93
450V
10U
1000U
35V
R181
4K7
5957
X8001
V05
4K7
1.0W
SOCKET
R219
470K
SOCKET UPSIDE DOWN
5958 RT
V
350V
22U
NORMAL
C106
NORMAL LARGE
BLK
Choke
SOCKET WITH DIRECTION
TAB
W21
R172
150K
2.0W
350v
X2
YCS90
YCS50/50H
Pcb Mech X8001V05
Top Assy X8001V05
SCORE
VCD
ORIGIN
MC7815CT
6872
TO220
100N
RT
V
PRI
ORN
BLK
ORN
C86
470U
W16
W6
W7
INSERT
W5
SHORT AXIS
W22
W9 BLK
BRN
BLK
ORN
BLK
M1295
C88 M1353
5635
X1
RT
V
150K
2.0W
-
W17
BLK/YEL
BLK/YEL
WHT
RT
V
C100
W11
LINE
RT
V
BLK
HVCT
VIO
To_PowerAmp 3538
1M
R182
5958
R179
1/2W
47K
RT
V
470U
C116
BLU
C92
350v
250V
680N
5266
H1
3692
25V
100U
5958
W29
8799
D19
4007
D16
RT
V
W8
R180
1/2W
47K
C91
5618
C85 C83
350V
22U
220N 220N
5882
5957
CHASSIS
GRN W19
WHT
C84
5.0W
250V
C87
SCORE
TO220
4709
22R
470U
25V
C89
RT
V
U7
HI V
6888
HER508
3
C11 1
645 0V
25 7
4N
U6
R183
6888
HER508
W10 D15
6871
MC7915CT
8799
X15
H2
100R
1.0W
LOC
R185
100N
LVps
2337
3692
35V
1000U
D9
D10
4007
4007
LV
W13
W15
LV
HV
HV
BlankSize - 17000x10800
C90
100U
25V
4
W1
16AWG
RED
HER508
6888
100R
1.0W
RT
V
C82
C81
5635
RT
V
D11
HER508
6888
R184
1
4007
RED D13
RED
SCORE
ORIGIN
D12
4007
YEL
CT D14
W12
WHT
YEL
N/C
CLINCH
RT
V
5635
C80
GRYGRY
W14
W2
1000U
35V
RT
V
SCORE
YCS90
BEC
SEE LAYOUT DOCUMENTATION
SCORE
CLINCH
SEE LAYOUT DIAGRAM
PRODUCTION NOTES X8001(M1295, M1353)
X8001.PCB_DATABASE_HISTORY
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
DATE
26-FEB-2007
20-MAR-2007
.
19-JUN-2007
29-AUG-2007
.
.
.
14-SEP-2007
18-SEP-2007
17-MAR-2009
2009/02/17
.
D
D
D
D
D
D
D
D
D
D
D
D
D
YCS50, 50H, 90
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
4.01
Add YBA300 variant. Labeled AC tabs. Add mtg hole EC42.
.
Chng W2 to XH. Make blankX 18.325". pc#8018
PC8160: Delete C112. Add score lines
GG
V05
No YBA300
.
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
N
V
1. BEFORE CLINCHING, BREAK PANEL IN 2 ALONG LINE WHERE INDICATED.
2. B.A. Variant parts:
BOARD
C86
M1295
#5857, 470U
M1353
#6574, 330U
C87
#5857, 470U
#6574, 330U
8799
3. B.A. WILL CUT TWO OTHER JUMPERS
M1295
M1295
M1353
YCS90
YCS50/50H
M1353
M1295
M1353
YCS90
YCS50/50H
TO220
Device
3692
PCB
TO220+3692+8799-MTG
.4"Fins
350v
16AWG
HER508
6888
R171
C109
5958
W16
Dummy
Dummy
W29
RT
V
22U
350V
R205
450V
10U
RT
V
R178
10K0
1.0W
450V
10U
RT
V
R212
WHT
W20 Choke
PWR
VIO W3
C101
5959
5958
C110
470K
2K2
2.0W
350V
22U
X8001
V4.00
4K7
1.0W
1.0W
10K0
5957
RT
V
X2
YCS90
YCS50/50H
YCS30
5958 R203
C93
R220
R214
RT
V
R172
150K
2.0W
1000U
35V
R181
22U
350V
R183
470U
D40
BLK
.
.
SHORT AXIS
W17
WHT
W6
C86
5959
C100
R182
M1295
M1353
M1357
X1
RT
V
150K
2.0W
-
BRN
PRI
W9
HVCT
VIO
W11
LINE
W7
BLK
1M
C88
5635
470K
470K
470U
3538
4K7
RT
V
5618
C89
22U
350V
TO220
Pos15Reg
MC7815CT
6872
100N
35V
1000U
X15
6871
MC7915CT
Neg15Reg
.
TO220
350V
22U
C92
470U
25V
5958
C107
RT
V
R219
470K
RT
V
350V
22U
R221
C106
5958
WHTChoke
W18
Dummy
W4
W21
22N
275V
C112 6435
.
5958
YCS90
To_PowerAmp
RT
V
C83
C85
H1
3692
25V
100U
R180
R179
RT
V
RT
V
C116 5266
680N 250V
W8
WHT LINE
WHT
100N
LV_PS
5957
W5
W15
W40
D19
C87
CHASSIS
BLK
PRI
1/2W
47K
4007
1/2W
47K
RT
V
30v
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
M1295 V4.00
CE WIRING
240 VAC
WHITE
WHITE
CH1336U
WHITE
#3702
POWER
#3698
AMP MODE
.4"Fins
W16
Dummy
Dummy
W29
RT
V
22U
350V
R205
450V
10U
RT
V
R178
10K0
1.0W
450V
10U
RT
V
R212
WHT
W20 Choke
PWR
VIO W3
C101
5959
5958
C110
470K
2K2
2.0W
350V
22U
X8001
V4.00
4K7
1.0W
1.0W
10K0
350v
R171
C109
5958
RT
V
R220
R214
470K
470K
5857
HER508
6888
1000U
35V
R181
22U
350V
R183
470U
X2
YCS90
YCS50/50H
YCS30
5958 R203
C93
4K7
C86
5959
C100
R182
M1295
M1353
M1357
X1
RT
V
R172
150K
2.0W
3538
1M
22U
350V
TO220
Pos15Reg
MC7815CT
6872
100N
6871
MC7915CT
Neg15Reg
.
TO220
350V
22U
RT
V
5618
C89
C88
5635
RT
V
D40
BLK
.
.
W6
C92
470U
25V
To_PowerAmp
RT
V
C83
R180
R179
150K
2.0W
-
BRN
W9
PRI
WHT
W17
.
W8
WHT LINE
WHT
W22
HVCT
VIO
W11
LINE
W7
BLK
5958
H1
3692
25V
100U
C85
16AWG
22N
275V
C112 6435
470U
RT
V
YCS90
5958
C107
RT
V
R219
470K
RT
V
350V
22U
R221
C106
5958
WHTChoke
W18
Dummy
W4
W21
C116 5266
680N 250V
1/2W
47K
4007
1/2W
47K
RT
V
RT
V
CHASSIS
BLK
PRI
5857
C87
GRN W19
C113
6451
250V
4N7
X15
35V
1000U
350v
D19
W5
W40
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
M1295 V4.00
WHITE
JA WIRING
100 VAC
WHITE
CH1336U
#3698
POWER
#3698
AMP MODE
.4"Fins
16AWG
R171
C109
5958
W16
Dummy
Dummy
22U
350V
R205
RT
V
R212
RT
V
450V
10U
RT
V
R178
10K0
1.0W
5958
C110
470K
2K2
2.0W
350V
22U
WHT
W20 Choke
PWR
VIO W3
C101
5959
1.0W
10K0
350v
HER508
6888
W29
R220
R214
470K
470K
5857
RT
V
X8001
V4.00
4K7
1.0W
450V
10U
470U
R172
150K
2.0W
1000U
35V
R181
22U
350V
C86
RT
V
X2
YCS90
YCS50/50H
YCS30
5958 R203
C93
X1
5959
C100
R182
M1295
M1353
M1357
4K7
RT
V
3538
1M
22U
350V
TO220
Pos15Reg
MC7815CT
6872
100N
R183
350V
22U
C92
5618
C89
C88
5635
RT
V
D40
.
BLK
5958
470U
25V
To_PowerAmp
RT
V
C83
C85
H1
3692
25V
100U
R180
R179
150K
2.0W
-
BRN
W6
.
WHT
W17
.
W8
WHT LINE
WHT
PRI
W9
HVCT
VIO
W11
LINE
W7
BLK
RT
V
YCS90
5958
C107
RT
V
R219
470K
RT
V
350V
22U
R221
C106
5958
WHTChoke
W18
Dummy
W4
W21
22N
275V
C112 6435
W22
6871
MC7915CT
Neg15Reg
.
TO220
470U
C116 5266
680N 250V
1/2W
47K
4007
1/2W
47K
RT
V
RT
V
CHASSIS
BLK
PRI
5857
C87
GRN W19
C113
6451
250V
4N7
X15
35V
1000U
350v
D19
W5
W40
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
M1295 V4.00
WHITE
N.A. WIRING
120 VAC
#3698
POWER
CH1336U
WHITE
#3698
AMP MODE
5B LIN
WIP
BOT
TOP
10K
4417
Send Level
P12
3424
DPDT SLID
4ohm/8ohm S9
500K
15A
BOOST
4425
3522
20K
4425
4425
Modern
S5
4424
4423
Alternate
NCR
CL
CR
NOL
NOR
NCL
P19
WHT
S2
CH-SELECT S3
P9
CR
NOR
WHT
4425
4423
15A
4423
P13
Alternate
NCR
CL
NOL
Scoop
S4
15A
NCL
P6
P8
NCR
CL
CR
NOL
NOR
WHT
P7
P15
Resonance MASTER VOLUME
Presence
20K
500K
20K
15A
15A
3522
15A
4423
CL GAIN
CL VOLUME
TREBLE
MID
BASS
REVERB2
FX Ret 2
500K
500K
100K
20K
500K
20K
20K
P14
4425
Voice
4425
4424
P1
4423
NCR
CL
CR
NOL
NOR
WHT
S1
P16
WHT
S8
P3
NCL
NCR
CL
CR
NOL
NOR
WHT
S6
3522
NCL
3440
P4
Contour
15A
15A
WHT
4425
4423
P2
P17
NCL
NCR
CL
CR
NOL
NOR
4423
Alternate
3522
Alternate
15A
P10
P11
P18
3522
EQ Shift
15A
3522
BRIGHT
1B
CR
4425
15A
NCR
Alternate
15A
4423
NOR
CR
NOR
FX Ret 1
20K
15A
CL
CL
NOL
WHT
REVERB1
500K
15A
NCL
NCR
BASS
20K
1B
NOL
Alternate
NCL
NCL
MID
100K
15A
Alternate
P5
TREBLE
500K
15A
3522
BOOST LEVEL OD VOLUME
500K
3522
OD GAIN
Alternate
STANDBY S7
WHT
S10
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.
YCS90 Parts List 8/14/2012
YS #
6397
5906
6398
6399
5907
5908
6825
6888
6438
6437
6450
6461
6871
6872
5101
5102
5103
5104
5108
5119
6882
5408
5199
5197
5277
5194
5416
5816
5206
5273
5208
5426
5275
5209
6451
5272
5204
5834
5205
5224
5841
5226
5212
5865
5229
5231
5882
5233
5234
5266
5254
5257
5629
5959
5631
5958
5961
5267
5879
5957
5618
5635
4417
4423
4424
4425
4520
3976
6563
8522
8570
3467
3478
3489
3490
3491
3494
3601
2280
3450
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
HER508 1000V 3A0 DIODE ULTRAFAS
1N4007 1000V 1A0 DIODE
T&R
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
J111
TO92 NCH JFET T&R TC
TL072CP IC FET DUAL OP AMP
_47P 100V 10%CAP T&R BEAD
NPO
100P 100V 2%CAP T&R RAD CER.2NPO
220P 100V 2%CAP T&R RAD CER.2NPO
220P 200V 5%CAP T&R RAD CER.2NPO
470P 1000V 10%CAP T&R RAD CER.2Y5P
470P 50V 10%CAP T&R BEAD
NPO
680P 100V 5%CAP T&R RAD CER.2NPO
__1N 400V 5%CAP T&R RAD .2FLM
__1N5 200V 5%CAP T&R RAD CER.2NPO
__2N2 400V 5%CAP T&R RAD .2FLM
__2N2 50V 10%CAP T&R BEAD
Y5R
__3N3 100V 5%CAP T&R RAD .2FLM
__4N7 250V 5%CAP T&R RAD .2FLM
__4N7 250V 20%CAP BLK 'Y' 10MM AC
__6N8 100V 5%CAP T&R RAD .2FLM
_10N 100V 10%CAP T&R RAD .2FLM
_10N 400V 10%CAP BLK RAD POLY FLM
_15N 100V 10%CAP T&R RAD .2FLM
_47N 100V 10%CAP T&R RAD .2FLM
_47N 250V 10%CAP RAD POLYFILM BULK
_68N 100V 5%CAP T&R RAD .2FLM
100N 63V 5%CAP T&R RAD .2FLM
100N 250V 10%CAP BLK RAD POLY FLM
150N 63V 10%CAP T&R RAD .2FLM
220N 63V 5%CAP T&R RAD .2FLM
220N 250VDC 10%CAP BLK RAD PLY FLM
330N 63V 5%CAP T&R RAD .2FLM
470N 63V 10%CAP T&R RAD .2FLM
680N 250V 20%CAP BLK 'X2' 30MM AC
__1U 63V 20%CAP T&R 4X7MM .2EL
__2U2 63V 20%CAP T&R RAD .2EL
_10U 160V 20%CAP BLK 10X13MM EL
_10U 450V 20%CAP BLK
EL
_22U 50V 20%CAP T&R 6X7MM .2EL
_22U 350V 20%CAP BLK 13X25 EL
_33U 16V 20%CAP T&R RAD .2IN NP
100U 25V 20%CAP T&R RAD .2EL
100U 16V 20%CAP T&R 8X7MM .2EL
470U 350V 20%CAP BLK 30X50 EL
470U 25V 20%CAP BLK 10X15MM 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
CHOKE:5000UH 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
CLIP 250X032 14-16AWG DISCO/INSL
CLIP 205/187X020 18-22AWG DISCO/INS
CLIP 205/187X020 14-16AWG DISCO/INS
RING TERMINAL 16AWG WIRE & #8 SCREW
280 PHONO PLUG
1/4" JCK PCB MT ALL-GOLD SKT
Qty.
1
1
1
1
1
1
16
5
5
1
2
1
1
1
4
4
4
1
1
4
7
1
2
8
1
2
1
1
9
1
4
4
2
4
1
1
4
4
2
3
1
1
18
2
2
1
2
3
2
1
1
3
1
3
11
6
10
2
1
2
1
3
1
8
2
8
1
3
1
4
8
2
5
2
1
4
2
1
1
3
YS #
3498
3921
3888
3902
6541
3923
3451
TFS-2B
2472
8451
3692
3438
3552
3810
3676
3674
3583
4004
3538
8430
8431
8633
3428
8269
8800
8604
8898
9977
8797
4597
4599
4703
4618
4709
4817
2019
4735
4852
4859
4857
4821
5019
4822
4823
4913
4585
4824
5005
4631
4705
4847
6104
4714
4850
4681
4827
4828
4863
4829
5031
6116
4830
4831
4832
4902
4833
4840
4853
4878
4634
4834
4837
4838
4776
4851
4790
4849
4668
4841
6145
Description
1/4" JCK PCB MT HORZ
1/4" JCK PCB MT VERT STER RT SWT
12"RCA SINGLE CABLE 0'/90' BLACK
72"RCA DUAL CABLE 0'/90' RED/WHITE
RCA JACK SNGL PCB MT HOR K901
XLR MALE PCB MT HORZ MTHOLE-V SNAP
EYELET SMALL 0.089 OD PLATED
TRAYNOR DUAL FOOTSWCH 10' CORD-BULK
T3,15A GDA BUSSMANN 5X20MM FUSE
10" STRAP HANDLE,BLACK METAL ENDCAP
HEATSINK TO-220 W/O TAB BLK ANODIZE
PWR INLET & FUSE DRAWER
NYLON SPRING CLAMP
4" NYLON CABLE TIE
8 CIR CABLE HOLDER .098
9 CIR CABLE HOLDER .098
_8 CIR WAFER W/LCK 0.1"
_9 CIR WAFER W/LCK VT 0.1"
24 PIN BREAKAWAY LOCK .156
KNOB, CHICKEN BEAK, BLACK, POINTER
KNOB BUDGIE-BEAK
KNOB ROUND PUSHBUTTON 1/4" BLACK
8' 3/18 SJT AC LINE CORD REMOVABLE
TRAYNOR LOGO PLASTIC W/ BLK INSERT
6-32 KEPS NUT ZINC
10-32 T NUT
1/4-20 CAGE NUT C79 98142027
5/16-18 NYLON INSERT LOK NUT ZN CLR
5/16-18 KEPS NUT JS500
22AWG STRAN TC WIR
JMP
22AWG SOLID SC WIR
T&R JMP
2.0W 2R 5%
T&R RES
1/2W 22R 5%
T&R RES
5.0W 22R 5%
BLK 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 150R 5%
T&R RES
1/4W 220R 5%
T&R RES
1/4W 470R 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%
T&R 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 3K9 5%
T&R RES
1.0W 4K7 5%
T&R RES
1/4W 4K7 5%
T&R RES
1/4W 6K8 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 27K 5%
T&R RES
1/4W 33K 5%
T&R RES
1/4W 39K 5%
T&R RES
1/4W 43K 5%
T&R RES
1/2W 47K 5%
T&R RES
1/4W 47K 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 120K 5%
T&R RES
2.0W 150K 5%10MM BODY T&R RES
1/4W 180K 5%
T&R RES
2.0W 220K 5%10MM BODY T&R RES
1/4W 220K 5%
T&R RES
1/4W 249K 1%MINI
T&R RES
Qty.
5
2
1
1
4
1
19
1
1
1
2
1
4
8
2
2
2
2
1.152
18
1
8
1
1
1
6
10
2
2
5
85
4
1
1
4
2
2
1
1
1
2
6
5
5
1
1
1
4
1
2
2
3
1
1
2
10
2
1
22
2
8
3
1
5
4
2
1
2
2
7
4
14
4
6
2
1
1
13
4
YS #
4843
4844
4845
3664
6615
6616
3535
3700
3537
8842
8799
8753
8727
8862
8822
8832
8801
8829
8949
8843
8780
8770
8657
3865
7083
8482
8488
8818
8817
3440
3424
3522
3698
12AX7BLK
6L6BULK
3732
3984
3731
1403
1404
CH1336M
CH1336U
Description
1/4W 470K 5%
T&R RES
1/4W 1M 5%
T&R RES
1/4W 2M2 5%
T&R RES
13.0" 8C-26AWG RIB 1 W/LCK HDR 098"
13.0" 8C-22AWG RIBBON CABLE .156"
_6.0" 9C-22AWG RIBBON CABLE .156"
10.0" 9C-26AWG RIB 1 W/LCK HDR 098"
RELAY 2C 01AMP DC24 015MA PC-S
ACC# 4EB3C1B LONG REVERB
#4 X 5/16 PAN QUAD TYPE A JS500 BLK
#6 X 1/4 PAN PH TYPE B JS500
#10 X 1/2 PAN QUAD TY A JS500 BLACK
#10 X 1" PAN PH TYPE A JS500 BLACK
#10 X 1 1/2 PAN PH TYPE A JS500
6-32 X 1/4 PAN PH MS ZN C/W SPLIT_W
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
10-32 X 3/4 IND HEX M/S BLACK OXIDE
10-32 X 1 1/8 FLAT QUAD MS JS500
5/16-18 X 3 3/4 CARRIAGE BOLT FT ZN
1/4-20 X 1 5/16 TRUSS PH MS JS500
6-32 X 3/8" HEX SPACER ALUMINUM
1/2 PLASTIC HEX SPACER #6
12" 16R 60WPGM CELEST CENTURY VINTG
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
SPST ROKR SW QUIK 180" AC PWR BL/BL
12AX7 DUAL TRIODE PREAMP TUBE
6L6G VACUUM TUBE BULK
9 PIN PC MOUNT TUBE SOCKET BE
8 PIN PC MOUNT TUBE SOCKET BE
TUBE RETAINER
YCS100H TOROID COVER VR 122 X 65
TOROID COVER VR 130 X 70
YCS90 OPT
YCS90 XFMR
Qty.
9
6
3
2
1
1
2
2
1
2
2
21
8
9
5
41
2
16
8
2
2
10
17
14
2
1
1
4
33
1
1
8
2
3
4
3
4
4
1
1
1
1