Printed Wiring Board - Key Board - Sony MDX-CA680 Service Manual

MDX-CA680/CA680X
4-15. PRINTED WIRING BOARD – KEY Board – •
1 2 3
A
3 4
3 4
2 5
2 5
1 6
1 6
B
3
2
1
A K
3
LED902, LED903
2
C
1
A K
6 1
6 1
5 2
5 2
4 3
4 3
D
E
F
G
• Semiconductor Location
Ref. No. Location
Ref. No. Location
D902 G-12
LED902 B-1
D903 G-12 LED903 C-1
D904 G-11
LED905 B-4
D906 G-11 LED906 B-11
D908 G-11 LED909 C-11
D971 B-11
LED910 C-4
LED913 C-12
IC900 F-8
LED914 B-13
IC971 A-11
Q901 F-4
LED900 B-2
Q902 E-4
LED901 C-2
See page 28 for Circuit Boards Location.
4 5 6
3 4
2 5
1 6
4
5
6
4
5
6
6 1
5 2
4 3
7 8 9
LSW901-911, 914-919
(CA680)
3 4
2 5
1 6
38 38
10 11 12
3 4
2 5
1 6
3 4
2 5
1 6
A
A
3 4
2 5
1 6
6 1
6 1
5 2
5 2
4 3
4 3
LED900, 901, 913, 914
(CA680X)
(CA680) (CA680X)
3 4
K A K A (Page 36)
2 5
K A K A
1 6
13
3 4
2 5
1 6
1 2 3
6 5 4
K A
K A
1 2 3
K
K
6 5 4
6 1
5 2
4 3