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YORKVILLE YCV4050 Instructions De Service page 8

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A
B
C
D
1
2
3
4
YEL
5
TO W3
RING
6
BLK
TO W4
7
8
9
10
11
12
13
14
15
16
17
A
B
C
D
E
F
G
H
3700
.
RED
W20
TO W25
C16
100N
250V
PRE-AMP
.
.
Val
YEL
W2
W3
R4
V1:A
1/4W
47K
2X_TRIODE_HCT
.
TO W2
{Body}
.
.
BLK
W1
W4
TO W1
R5
1/4W
220K
MINI
3700
3700
K2:A
K1:A
C17
10N
C85
DNS
PRE-AMP
500K
Val
15A
4425
V1:B
P1:A
2X_TRIODE_HCT
M
DRIVE
E
F
G
H
I
J
K
L
M
K2:B
C33
1N
400V
100K
1B
4424
C35
P8:A
220P
100V
M
TREBLE
Alternate
C23
47N
100V
500K
15A
4425
500K
P7:A
15A
4425
M
BASS
P9:A
M
CLEAN VOLUME
C22
47N
100V
20K
15A
4423
BRIGHT
P6:A
Alternate
M
MID
S6:A
R11
This part is stuffed ONLY
1/4W
113K
.
on M581 (YCV40)
400V
and M645 (YCV4050)
This part is stuffed ONLY
400V
on M613 (YCV50BLUE)
PRE-AMP
Val
R114
V2:A
C18
1/4W
1N5
200V
100K
2X_TRIODE_HCT
.
I
J
K
L
M
N
O
P
Q
R58
C34
1/4W
2N2
400V
499K
MINI MF
R56
R57
1/4W
1/4W
113K
499K
.
MINI MF
C24
22N
400V
PRE-AMP
Val
2X_TRIODE_HCT
R21
V2:B
1/4W
100K
.
3522
C19
C32
100N
250V
1N
400V
100K
1B
4424
R14
P2:A
1/4W
100K
M
TREBLE
Modern
Alternate
S1:A
C20
3522
47N
100V
500K
15A
4425
P3:A
M
BASS
P5:A
C21
33N
100V
Alternate
Modern
20K
S1:B
15A
P4:A
4423
3522
R52
68K
M
MID
.
N
O
P
Q
R
S
T
U
R112
C71
1/4W
470P
100V
27K
.
R22
R23
1/4W
1/4W
100K
100K
.
.
3700
K1:B
500K
15A
4425
R24
1/4W
47K
.
M
MASTER
Product
.
YCV4050 M645
Input/Pre
PCB#
X8040
Sheet
Date:
Tue Jan 21, 2020
Rev:
V01
YsType:
Filename:
X8040V16sch.sch2006
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