Printed Wiring Board - Power Section - Sony STR-DB900 Service Manual

STR-DB900
4-19. PRINTED WIRING BOARD — POWER SECTION —
3
1 2
POWER BOARD (SIDE A)
A
B
C
D
E
POWER BOARD (SIDE B)
F
5 1
4 2
G
E
H
I
J
STR-DB900
• See page 10 for Circuit Boards Location.
4 5 6 7
4 5
E
E
1 8
3
1 E
E
A K A
1
3
2 4
1 5
:Uses unleaded solder.
8 9 10
1-862-297-
2
E
1 1
E
3
E
1
E
E
3
1
E
1
5
4
2
1
11
5
A K
1
1 3
1 3
1
E
3
E
1-862-297-
32 32
11 12 13
REG BOARD (SIDE A)
11
1-863-921-
(11)
REG BOARD (SIDE B)
B E C E B
11
1-863-921-
(11)
H
AMP BOARD
(Page 23)
11
(11)
AC SW BOARD
DIGITAL BOARD
D
(Page 21)
POWER
AMP BOARD
G
(Page 23)
11
(11)
14
• Semiconductor
Location
Ref. No. Location
D901 J-7
D902 J-5
D903 G-2
D904 J-5
D905 J-4
D906 G-2
D907 I-7
D908 H-3
D909 G-3
D911 I-5
D912 G-3
D913 H-9
D914 J-8
D915 J-8
D916 G-3
D917 H-7
D918 H-8
D919 G-7
D920 G-9
D921 G-9
D925 F-7
D926 G-8
D927 G-8
D928 G-10
D929 G-2
D930 I-10
D931 F-10
D932 G-7
D933 F-7
D990 C-12
IC901 J-6
IC902 G-3
IC903 I-8
IC904 H-9
IC905 F-6
IC906 I-10
IC907 J-9
IC908 F-9
IC909 F-7
IC910 G-9
PC901 F-5
PC902 F-5
Q901 J-7
Q902 F-10
Q903 J-8
Q904 H-3
Q905 G-7
Q906 F-6
Q907 F-9
11
Q908 F-7
1-862-300- (11)
Q910 F-7
Q912 G-8
Q914 F-8
Q917 F-6
Q920 F-10
Q990 C-13