Traynor YCS90 - YCS50;90 Preamp Schematic; Input and OD Stage Circuits; Preamp Output Connections

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of
Filename:
PCB# Sheet 31
Product
Date: Rev: YsType:YS1067,4
M1294V200sch.sch2002
M1294
Gain/EQ
Thu Feb 14, 2008 2.00
YCS50/90 Preamp
of
Filename:
PCB# Sheet 31
Product
Date: Rev: YsType:YS1067,4
M1294V200sch.sch2002
M1294
Gain/EQ
Thu Feb 14, 2008 2.00
YCS50/90 Preamp
+200V
GND
GND
GND
GND
+225V
GND
LOW+
GND
R41
1/4W
100K
.
-15V
+15V
GND
GND
1/4W
113K
R7X1
.
1/4W
220K
R68
.
GND
GND
OD_GR
GND
GND
INPUT_PL
+225V
C9
250V4N7
GND
OD_OUT_PL
GND
GND
CLN_OUT_PL
LVGND
LVGND
+15V
-15V
C85
400V1N
GND
SPLIT_IN
LVGND
STANDBY
GND
NET00142
GND
CLN_GR
NET00142
+200V
-15V
GND
FIL-
STANDBY
3
W21_:C 8
GND
R43
1/4W
.
120K
GND
TO_PRE-OUT
C13
100V
10N
4
W21_:D 8
LVGND
8
W20_:H 8
7
W20_:G 8
C45
400V 2N2
W21:D
8
FIL-
R210X
22AWG
SOLID
WIR
LVGND
W26
GND
#18
BLK
C48
100V
10N
6541
J15_
To_Input
R5X
1/4W
1K2
MINI
C19X
63V
470N
+225V
FIL-
R209X
22AWG
SOLID
WIR
GND
R3X
1/4W
1K
.
C7X
63V
1U
R22X
1/4W
120K
.
R23X
1/4W
.
120K
C17X
200V1N5
C2
100V47N
C20X
63V
470N
R6X
1/4W
1K
.
P3:A
4423
M
15A
20K
MID
1
W21_:A8
OD_OUT_PL
S5:B
3522
UP
Alternate
DOWN
Modern
W21:B
8
2
W21_:B8
1/4W
10K
R71
.
C5
100V47N
C4
63V100N
C6
400V1N
R4X
1/4W
1K5
.
R21X
1/4W
220K
.
R69
1/4W
.
47K
R52
1/4W
.
100K
R158
1/4W
22K
.
C12X
250V47N
+200V
1/4W
100K
R9
.
R24
1/4W
4K7
.
C88
63V150N
R14
1/4W
.
100K
C90
63V
100N
R149
1/4W
.
82K
R150
1/4W
.
100K
S6:A
3522
UP
Alternate
DOWN
Contour
R146
1/4W
.
100K
-FDBK
XF_P1
OD_OUT_PL
OD_GR
INPUT_PL
6
W20_:F 8
C108
450V
10U
R126
1/4W
.
1M
4148
D20
+15V
R145
1/4W
.
100K
5
W30:E 8
7
W30:G 8
6
W30:F 8
8
W30:H 8
1
W30:A 8
2
W30:B 8
W20:F
8
-15V
C29
100V220P
+15V
R116
1/4W
.
15K
R115
1/4W
.
39K
P5:A
4425
M
15A
500K
OD GAIN
1/4W
2M2
R114
.
3682
W11_
To_IG
GRN
2X_TRIODE_HCT
V3:C
{Voltage}
W25_
INPUT
#18
YEL
1/4W
220K
R28
.
W25
INPUT
#18
YEL
R9X
1/4W
113K
.
C14X
400V
1N
V2:B
2X_TRIODE_HCT
{Body}
Val
.
C21X
250V100N
1/4W
120K
R73
.
R11
1/4W
47K
.
C15X
250V
470P
1/4W
113K
R10X
.
V2:A
2X_TRIODE_HCT
{Body}
Val
.
R13
1/4W
.
47K
P1:A
4424
M
1B
100K
TREBLE
P2:A
4425
M
15A
500K
BASS
R152
1/4W
82K
.
R18
1/4W
.
100K
R12
1/4W
43K
.
1/4W
113K
R7X2
.
C24
250V
4N7
C18
63V100N
DOWNUP
S8:C
3440
ALTERNATE EQ Shift
C98
400V
1N
R17
1/4W
.
47K
R151
1/4W
22K
.
R72
1.0W
.
4K7
R15
1/4W
.
47K
C84
100V
6N8
3
W30:C 8
4
W30:D 8
8
V+
4
V-
U1:C
R74
1/4W
.
120K
P16:A
4425
M
15A
500K
CL VOLUME
W20:H
8
OD_GR
C16X
400V2N2
W20:B
8
W20:D
8
CLN_GR
CLN_OUT_PL
W5:A
4
W5:D
4
C86
50V470P
NGRID
PGRID
SPLITTER
+225V
LOW+
STANDBY
CLN_OUT_PL
NET00142
C15X1
400V
1N
R70
1/4W
1M
.
C23
400V2N2
W20:G
8
R25X
1/4W
.
120K
OD Stage
3700
K1:B
3700
K2:B
R27
1/4W
.
220K
R113
1/4W
.
2M2
LVGND
R208X
22AWG
SOLID
WIR
LOW+
W26_
GND
#18
BLK
C1
400V1N
2
W20_:B8
C94X
100V
47P
R2X
1/4W
1M
.
W20:A
8
6541
J15
To_Input
INPUT_PL
Input Stage
S5:A
3522
UP
Alternate
DOWN
Modern
P8:A
4423
M
15A
20K
MID
W21:A
8
C22X
250V100N
CLN_GR
C8X
63V
220N
4
W20_:D 8
3
W20_:C 8
R26
1/4W
220K
.
S1:B
3522
DOWN UP
AlternateBRIGHT
S1:A
3522
DOWN UP
AlternateBRIGHT
W20:E
8
5
W20_:E8
CLN/BOOST
AMPLIFIER
C10
400V
1N
R19
1/4W
.
220K
DOWN UP
S8:B
3440
ALTERNATE EQ Shift
S8:A
3440
DOWN UP
ALTERNATEEQ Shift
W5:C
4
To_PowerSupply
W5:B
4
R148
1/4W
.
8K2
C89
100V10N
C30
63V330N
S4:B
3522
UP
Alternate
DOWN
Scoop
S4:A
3522
UP
Alternate
DOWN
Scoop
R29
1/4W
.
180K
R133
1/4W
.
100K
R147
1/4W
24K
.
U9:A
TL072
C83
250V
4N7
_W20
S8:D
3440
DOWN UP
ALTERNATEEQ Shift
Preamp Headers
C43
100V
220P
C3
100V47N
3700
K2:A
1
W20_:A8
R1X
1/4W
.
2K21
V1:B
2X_TRIODE_HCT
{Body}
Val
.
P6:A
4424
M
1B
100K
TREBLE
P7:A
4425
M
15A
500K
BASS
P9:A
4425
M
15A
500K
OD VOLUME
R20
1/4W
.
220K
C11
400V1N
C44
250V
470P
M
15A
P19:A
4425
500K
BOOST LEVEL
P4:A
4425
M
15A
500K
CL GAIN
W20:C
8
V1:A
2X_TRIODE_HCT
{Body}
Val
.
Q23
5101
TO92
BC550C
U9:B
TL072
8
V+
4
V-
U9:C
_W21
C47
250V4N7
S6:B
3522
UP
Alternate
DOWN
Contour
2X_TRIODE_HCT
V2:C
{Voltage}
3700
K1:A
U1:B
TL072
RING
J1X
Input
2X_TRIODE_HCT
V1:C
{Voltage}