Printed Wiring Board - A Class Board - Sony STR-DB798 Service Manual

STR-DB798
6-27. PRINTED WIRING BOARD – A CLASS BOARD –
1 2 3
(Page 36)
31
A CLASS BOARD
A
5
6
B
C
Q2601 Q2602
B B
C C
E E
D
E
E
F
FAN BOARD
71
CN18
(Page 41)
• Semiconductor Location
Ref. No. Location Ref. No. Location Ref. No. Location
D2001 E-3 D2603 D-1 Q2005 F-4
D2101 E-5 D2604 D-3 Q2006 F-3
D2201 E-9 D2701 E-7 Q2101 D-6
D2301 E-10 Q2103 D-6
D2401 E-12 Q2001 D-4 Q2104 E-6
D2501 E-13 Q2003 D-4 Q2105 F-6
D2601 F-1 Q2004 E-4 Q2106 E-5
STR-DB798
• See page 19 for Circuit Boards Location.
4 5 6
(Page 36)
MAIN BOARD MAIN BOARD
21
CN421 CN401
1 11 1
2 12 2
C2102
C2002
5 5
1 1
Q2001 Q2101
E
E
E
E
E
E
E E
Ref. No. Location Ref. No. Location Ref. No. Location
Q2201 D-9 Q2304 E-11 Q2406
Q2203 E-9 Q2305 F-11 Q2501
Q2204 E-10 Q2306 F-10 Q2503
Q2205 F-9 Q2401 D-12 Q2504
Q2206 F-9 Q2403 E-12 Q2505
Q2301 D-11 Q2404 E-13 Q2506
Q2303 E-11 Q2405 F-12 Q2601
: Uses unleaded solder.
7 8 9
(Page 36)
MAIN BOARD
18
CN601
EB2001
11
12 2
C2702
1
5 5
1 1
Q2701 Q2201
E
E
E
E
E
E
72 STAY-1 BOARD
CN28
(Page 41)
Ref. No. Location
F-12 Q2602 D-2
D-14 Q2603 F-2
E-14 Q2701 D-8
E-14 Q2703 E-7
F-14 Q2704 E-8
F-13 Q2705 F-8
D-2 Q2706 F-7
40 40
10 11 12
(Page 36)
MAIN BOARD
22
CN651
1 9 1 11
10 2 12
5
1
Q2301 Q2401
E E
E E
E E
E E
13 14
(Page 36)
MAIN BOARD
19
CN501
1
2
5 5
1 1
Q2501
E
E E
E
E
E
11
(11)
1-867-410-
STAY-2 BOARD
73
CN38
(Page 41)