Yamaha FSW150 - YST Subwoofer - 75 Watt Service Manual page 14

A B
YST-FSW150/YST-FSW050
1
MAIN (3) P.C.B.
(Side A)
VOLUME
2
S3
E
3
S2
+15
-15
LEDG
LED
MAIN (2) P.C.B.
(Side A)
4
BE WH
CB3
AC1
AC2
5
AC IN
W7A
BE
6
W6A
WH
7
14
C D
POWER
OFF/SYSTEM ON
Power indicator
1
W3A
WH
8
W3B
BE
U, C, R, T, A, L, J models
K, B, G models
G4
CB9
CB8
CB1
L2
CB2
COM
IN
COM
IN C8
OUT
OUT
8 1
IC6
E F
YST-FSW050
MAIN (1) P.C.B.
(Side A)
12
W10A3 W10A2 W10A1
MAIN (4) P.C.B.
(Side A)
W1
JK1
SYSTEM
CONNECTOR
INPUT
K, B, G models
MAIN (6) P.C.B.
(Side A)
R, L models
BR
W12A
CB12
CB11
W14A
YE
W11A
BE
W13A
RE
110-120V 220-240V
VOLTAGE
SELECTOR
G H I
K, B, G models
IC3
1
IC2
8 1
C56
W8
W9
MAIN (7) P.C.B.
(Side A)
U, C, T, K, A, B, G, J models
BE
WH
MAIN (8) P.C.B.
(Side A)
R, L models
BE
BE
BR
RE
YE
WH
J
• Semiconductor Location
Ref no. Location Ref no. Location
D1 D2 IC2 H3
D3 C5 IC3 G1
D4 C6 IC4 C5
D5 D7 IC5 C5
D6 B7 IC6 D6
D7 C4 Q2 C7
D8 C5 Q4 C6
D10 B7 Q5 D6
D11 C4 Q6 D6
D12 C7 Q7 C7
D14 B6 Q8 C7
D15 C7 Q9 C7
D16 C7 Q10 B7
D17 B6 Q11 C6
D18 H2 Q12 C7
D19 I3 Q13 H1
D20 F2 Q14 I1
IC1 C3
SP-
DRIVER
WOOFER
SP+
K, B, G models
G3