Sony STR-DH720 Service Manual page 110

STR-DH720/DH720HP
2-19. SCHEMATIC DIAGRAM – MAIN Board (4/4) –
1 2 3
A
30
B
MAIN BOARD (4/4)
C
MAIN BOARD
8 36
(3/4)
35
(Page 21)
D
E
F
G
H
37
MAIN BOARD
9
(3/4)
39
JWH603
(Page 21)
CL374
75
38
I
W001
CL375
J
K
TB502
STR-DH720/DH720HP
4 5 6 7
R360
R355 R367
2.2k
1k 1k
R363
47k
R361
33
R366
47k
Q360
2SC3052EF-T1-LEF
R358
R356
RELAY DRIVER
47k
33
Q365
D360 2SC3052EF-T1-LEF
DA2J10100L RELAY DRIVER
Q355
2SC3052EF-T1-LEF
RELAY DRIVER
RY360
D365
12V
DA2J10100L
1 2
D355
DA2J10100L
3 4 SBL
RY365
12V
5 6
SBR
1 2
RY355
12V
C
1 2 3 4
SR
3 4 5 6
SL
5 6
(ECE)
CC13
0.01
CC17 CC18
0.01
0.01
RR13
RR17 RR18 10
10
10
1 2 3 4 1 2 3 4 5 6
TB503
- + - + - + - + - +
R L R L
CENTER
SURROUND BACK/ SURROUND
FRONT HIGH
8 9 10
MAIN BOARD (2/4)
(Page 20)
7
31
28 29 27
R350
2.2k
R353
R351
47k
R365
33
33
Q350
2SC3052EF-T1-LEF
RELAY DRIVER
D921
D350 D5SBA60-F
DA2J10100L
C930
RY350 6800
71V
12V
1 2
C931
6800
3 4 FL
71V
5 6 FR
CC11
CC12
0.01
0.01
RR12 RR11
10 10
1
TB504
+ + - -
R L
FRONT
SPEAKERS
22 22
11 12 13 14
32 33 34
D910 ~ D913
1SR154-400TE-25
D910
C912
C910
2200 D911 D912 F910
0.1
25V T2.5A 250V
D913
C911
0.1
C913
1000
25V
F911
T2.5A 250V
F912
T6.3A 250V
C932
0.1
7
6
8
F913
C933
0.1 4 T6.3A 250V
3
5
1
2
R921
2.2k
RY920
R925
47k
CL393
R920
33
D920 Q920
DA2J10100L 2SC3052EF-T1-LEF
RELAY DRIVER
15 16 17
CNP930
5P POWER
CL366
1 R2 AC
TRANSFORMER
2 NC
I
CL367 (MAIN)
3 CENTER TAP
T901
4 NC
CL368
5 R2 AC (Page 24)
CNP920
5P
POWER
CL369
R1 (UPPER TAP)
TRANSFORMER
CL370
R1 (LOWER TAP)
J
CL371
(MAIN)
R1 GND
CL373
R1 (LOWER TAP) T901
CL372
R1 (UPPER TAP)
(Page 24)