Schematic Diagram - Main Board (4/4) - Sony STR-DH520 Service Manual

4-11. SCHEMATIC DIAGRAM – MAIN Board (4/4) –
1 2 3
A
B
MAIN BOARD (4/4)
C
MAIN BOARD
8 35
(3/4)
36
(Page 22)
D
E
F
G
H
37
MAIN BOARD
9
(3/4)
38
JWH603
(Page 22)
75
39
I
W001
J
K
STR-DH520
4 5 6
R360 R355 R367
2.2k
1k 1k
R363
47k
R361
33
R366
47k
Q360
2SC3052EF-T1-LEF
R358
RELAY DRIVER R356
47k
33
Q365
D360 2SC3052EF-T1-LEF
DA2J10100L RELAY DRIVER
Q355
2SC3052EF-T1-LEF
RELAY DRIVER
RY360
D365
12V
DA2J10100L
1 2
D355
DA2J10100L
SBL
3 4
RY365
12V
5 6 SBR
1
RY355
12V
1 2 3
4 SR 5
3
5 6 SL
CL374
(UK, TW, AUS, ECE)
CL375
CC13
0.01
CC18
CC17
0.01
0.01
RR13
RR18
RR17 10
10
10
1 2 3 4 1 2 3 4 5 6
TB502
TB503
- + - + - + - + - +
R R
L L
CENTER
SURROUND BACK/ SURROUND
FRONT HIGH
7 8 9 10
MAIN BOARD (2/4)
(Page 21)
7
30 28 29 27
R350
2.2k
R353
47k R351
R365
33
33
Q350
2SC3052EF-T1-LEF
RELAY DRIVER
D350
D921
DA2J10100L
D5SBA60-F
RY350
C930
12V
6800
1 2
71V
2
3 4 FL
C931
6800
4 C 71V
5 6 FR
6
CC11
CC12
0.01
0.01
RR11
RR12
10
10
1
TB504
+ + - -
R L
FRONT
SPEAKERS
23 23
11 12 13 14
31
32 33 34
D910 ~ D913
1SR154-400TE-25
D910
C912
C910
2200 D911 D912
0.1
25V T2.5A 250V
D913
C911
0.1
C913
1000
25V
F911
T2.5A 250V
T6.3A 250V
C932
0.1
7
6
8
C933
4 T6.3A 250V
0.1
3
5
1 2
R921
2.2k
R925
RY920
47k
CL393
R920
33
D920 Q920
2SC3052EF-T1-LEF
DA2J10100L
RELAY DRIVER
STR-DH520
15 16 17
CNP930
F910
5P
CL366
1 R2 AC
MAIN POWER
2 NC
B
CL367
TRANSFORMER
3 CENTER TAP
4 NC T901
CL368
5 R2 AC
(Page 31)
CNP920
F912
5P
CL369
R1 (UPPER TAP)
MAIN POWER
CL370
R1 (LOWER TAP)
C
CL371 TRANSFORMER
R1 GND
CL373
R1 (LOWER TAP)
T901
CL372
F913
R1 (UPPER TAP)
(Page 31)