Printed Circuit Board; Lead Free Solder Used; Semiconductor Location - Yamaha YST-SW515 Service Manual

A B
Q Q
3 7 6 3 1 5 1 5 0
1
I PRINTED CIRCUIT BOARD (Foil side) Lead Free Solder Used

• Semiconductor Location

Ref. No. Location Ref. No. Location
D1 J6 Q1A F5
D2 J3 Q1C H5
D3 H3 Q2 H3
D4 H2 Q3 H3
D5 H3 Q4 H3
D6 F3 Q5 H3
2
D7 E6 Q6 H3
D9 I2 Q7 H3
D14 F3 Q8 H3
MAIN ( 3 ) P.C.B.
D15 H6 Q9 G5
D20 G2 Q10 G3
D21 F6 Q16A F5
D22 G3 Q16C H5
D23 G6 Q17A G5
D24 H6 Q17C H5
D25 G3 Q18 F2
CONFIRMATION OF
D26 G3 Q19 F2
AUTO STANDBY
3
D27 G7 Q20 F3
OPERATION
D28 G6 Q21 F3
R252
add 10kΩ
D29 G6 Q22 H6
D30 F6 Q23 H6
D31 F6 Q24A G6
D32 F6 Q24C F6
D33 F6 Q26A F7
D34 F3 Q26C G7
D36 I2 Q27 H2
D100 H7 Q28 H2
T E
L 1 3 9 4 2 2 9 6 5 1 3
D205 E6 Q29 G3
4
D206 J6 Q30 G3
IC1 I3 Q31 G6
IC4 B5 Q32 F6
IC6 I3 Q37 I2
IC8 E2 Q38 I2
IC10 C6 Q100 H6
IC11 B4 Q101 I6
IC201 B5 Q102 H6
Q103 H6
Q201 B7
Q202 B6
5
Q203 B7
Q204 B7
Q205 C6
6
w w w
.
7
C D http://www.xiaoyu163.com
MAIN (4) P.C.B.
MAIN ( 1 ) P.C.B.
DRIVER
+
–
x a o u 1 6 3
y
i
http://www.xiaoyu163.com
E F G
8 9
R274
Q Q
3 7 6 3 1 5
c o
.
H I
2 4
9 8
MAIN ( 10 ) P.C.B.
1 5 0 8 9 2 4 9
m
J
YST-SW515
2
9 9
MAIN (2) P.C.B.
BE
BL
BE
MAIN (6) P.C.B.
8 2 9 9
RE
BL
RE
11