Printed Circuit Board - Yamaha YST-SW216 Service Manual

A B
Q Q
3 7 6 3 1 5 1 5 0
I PRINTED CIRCUIT BOARD
1
MAIN (2) P.C.B.
(Side A)
OUTPUT INPUT 1
/
TO SPEAKERS FROM AMPLIFIER
2
R L
+ - - +
3
1 9
T E
L 1 3 9 4 2 2 9 6 5 1 3
• Semiconductor Location
4
Ref. no. Location Ref. no. Location Ref. no. Location
D1 J2 D24 J3 Q5 G3
D2 H4 D25 F3 Q6 G3
D3 I4 D28 I3 Q9 H4
D4 H2 D29 I3 Q10 H4
D5 H2 IC1 H2 Q17 F3
D6 G2 IC4 B3 Q18 F3
D7 F2 IC5 D3 Q19 F3
D8 E3 IC6 G3 Q20 F3
D22 G2 Q1 F3
D23 G2 Q2 F3
Circuit No. U, C, R, A, L B, G
5
C79 X O
C91 X O
WH BE
6
w w w
.
7
MAIN (5) P.C.B.
(Side A)
C D
Lead Free Solder Used
DRIVER
HIGH
INPUT 2 VOLUME
CUT
0 10
L /MONO / R
HIGH LOW
INDICATOR
1 9
MAIN (3) P.C.B.
(Side A)
WH
BE
POWER
ON OFF
AC IN
x a o
y
i
MAIN (9) P.C.B.
(Side A)
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MAIN (1) P.C.B.
(Side A)
8
SP+
SP-
RE
POWER
WH
9
Q Q
3 7 6 3
MAIN (7) P.C.B.
WH
U, C, A, B, G models
U, C, A, B, G models
R, L models
BE
u 1 6 3
.
RE BE YE
R, L models
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G H
2 4
9 9 8
10 1
1
1 5 1 5 0 8 9 2 4
Power
Transformer
(Side A)
BE
WH
Power
BE
Transformer
BE
BR
m
RE
c o
YE
BR
WH
I J
YST-SW216
2
9 9
RE
BL
RE
9 8 2 9 9
RE
BL
RE
MAIN (6) P.C.B.
(Side A)
MAIN (10) P.C.B.
(Side A) R, L models
9