A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
YST-SW015
9
J48
C65
MAIN (1) P. C. B.
(Lead Type Device)
MAIN (2) P. C. B.
(Lead Type Device)
MAIN (3) P. C. B.
(Lead Type Device)
1
1
9
1
8
1
9
1
9
10
MAIN (4)
VCC
PWS
-15
+15
E
TO
V
L
+V2
BASS
MAIN
E
+15
-15
PWS
+V1
TO
V
L
E
SP-
SP+
+V1
VCC
E
W9A
W5A
+V1
VCC
-15
+15
TO
V
L
+V1
PWS
E
MAIN
(6)
Driver
U, C, A, B, G, J models:
MAIN (7)
R, T, K models:
MAIN (10)
Power Cable
MAIN
(5)
W8A
W11A
W12A
INPUT
AUTO STANDBY
PHASE
OFF
LOW
HIGH
REV
NORM
CONFIRMATION OF
AUTO STANDBY OPERATION
R60 1M
Ω
■
PRINTED CIRCUIT BOARD (Foil side)
Ref. No.
Location
D1
E3
D2
E4
D3
E4
D4
A3
D5
B3
D6
C2
D7
B3
D9
C4
D10
G4
D11
H4
D14
H4
D19
C3
D20
C3
D21
C3
D22
A3
D23
B3
IC1
C6
IC2
C3
IC3
D4
IC4
E6
IC5
E7
IC8
C2
IC9
G4
Q1
B3
Q2
B3
Q4
G4
Q5
A3
Q6
B3
Q7
A3
Q8
B3
Q9
E4
Q10
E4
Q11
G4
Q12
E6
Q13
G4
Q14
C4
Q15
C4
Q16
B3
• Semiconductor Location
Circuit No.
J
U, C
R, T, K
A
B, G
C40
O
O
X
O
O
C53
X
X
X
X
O
C62, 63
X
X
O
X
X
CB7, 8
X
X
O
X
X
D14
X
X
O
X
X
F2
X
X
O
X
X
Q4, 13
X
X
O
X
X
R62
O
O
X
O
O
R73
X
X
O
X
X
SW6
X
X
O
X
X
W13~16
X
X
O
X
X
X: NOT USED
O: USED / APPLICABLE
