SCD-XB780
40
40
5-21. PRINTED WIRING BOARDS – POWER/POWER SW/PT Boards –
•
See page 25 for Circuit Boards Location.
IC901
IC903
IC902
IC906
IC905
IC904
1
3
1
3
1
3
1
3
1
3
1
3
E
C
B
(CHASSIS)
3
1
8
1
1-683-974-
11
(11)
POWER BOARD
1
10
E
MAIN
BOARD
CN707
1
9
G
AUDIO
BOARD
CN301
H
AUDIO
BOARD
CN306
J
DISPLAY
BOARD
CN802
1
5
CN991
1
2
2
1
2
1
S991
POWER
1-683-975-
11
(11)
1-683-973-
11
(11)
PT BOARD
POWER SW BOARD
(AC IN)
1
2
L901
LINE
FILTER
T902
POWER
TRANSFORMER
∗
∗
NOT REPLACEABLE:
BUILT IN TRANSFORMER
T901
POWER
TRANSFORMER
∗
A
B
C
D
E
1
2
3
4
5
6
7
8
9
10
11
12
• Semiconductor Location
Ref. No.
Location
D901
A-6
D902
A-6
D903
C-6
D904
C-6
D905
C-6
D906
C-6
D907
C-5
D909
D-5
D910
D-5
D911
D-5
D912
D-5
D913
E-5
D914
E-5
D915
E-5
D916
E-5
D917
E-6
D918
E-6
D919
E-6
D920
E-6
D921
D-2
D922
D-1
D923
A-3
IC901
A-3
IC902
B-4
IC903
A-4
IC904
D-3
IC905
E-3
IC906
C-4
Q921
D-1
Ref. No.
Location
(Page 37)
(Page 37)
(Page 28)
(Page 38)