Schematic Diagram - Main Board (2/7) - Sony STR-DH550 Service Manual

5-10. SCHEMATIC DIAGRAM – MAIN Board (2/7) –
1 2 3
A
MAIN BOARD (2/7)
2
6
8
3
7
9
B
4
5
1
12
10
>002S
MAIN BOARD
(1/7)
11
C (Page 24)
13
D
14
>004S
25
MAIN BOARD
E (1/7)
(Page 24) 24
26
27
F
28
29
CL857
30
>005S
G
MAIN BOARD
(3/7)
(Page 26)
H
31
CL855
I
W001
CL856
W003
J
K
STR-DH550/DH750
4 5 6
-59 3.3
Q320 Q321
0
MSB92T1G 2PD601ART
C320
PROTECTOR 0 R320 PROTECTOR
220u
22k
10V
C323
R323
0 220u
22k
Q323
10V
MSB92T1G D327
0
PROTECTOR BAV70
-59 Q324 3.3
2PD601ART
PROTECTOR
R325
R327
6.8k
10k
3.3
Q325
-59
D326
2SC2713-G
BAV70
C325 PROTECTOR
R326
10u -59
39k
50V
R328
1k
Q360
2PD601ART
RELAY
DRIVER
AGND
7 8 9 10
DH750
R360 R355
R363 R358 R366
2.2k 1k
47k 47k 47k
R361 Q355 R356 Q365
33 2PD601ART 33 2PD601ART
RELAY RELAY
0.8 0.8 0.8
DRIVER DRIVER
0.2 0.2 0.2
D360 D355
DA2J10100L DA2J10100L DA2J10100L
RY360 RY355 RY365
12V 12V
6 1 6 1 6
2 3 2 3 2
5 4 5 4 5
C016 C017 C018 C015
0.01u 0.01u 0.01u 0.01u
R016 R018
R017 R015
10 10
10 10
TB503 TB502
4P 4P
R L R L
SURROUND
SURROUND BACK/ BI-AMP/
FRONT HIGH/ FRONT B
SPEAKERS IMPEDANCE USE 6-16
25 25
11 12 13
RY380
R937 R938
12V
330 330
R939 R940
330 330
D937
DA2J10100L
Q929
14
2PD601ART
0 R926
RELAY
33
DRIVER
D910 ~ D913
GS1G
R927
47k
D910
R928
2.2k
D912
D911
C912
2200u
25V
C911
D913
0.1u
CL931
C913
1000u
25V
D921
D5SBA60-F
C934
0.1u
C930
6800u
C931
C935
6800u
0.1u
R920
DA2J10100L
33
R921
2.2k
R925
47k
R367 R350
R353
1k 2.2k
47k
R365 Q350 R351
33 2PD601ART 33
RELAY
0.8
DRIVER
0.2
D365 D350
DA2J10100L
RY350
12V 12V
1 6 1
3 2 3
4 5 4
C014 C013 C012
0.01u
0.01u 0.01u
R012
R013
R014
10
10 10
TB501
6P
CENTER R L
FRONT A
STR-DH550/DH750
Ver. 1.2
14 15 16 17
CN391 >006S
4P
CL364
1 HP-Detect
HEADPHONE
CL362
2 R-CH
CL363 BOARD
3 GND
CL361
CN107
4 L-CH
(Page 42)
C322
0.01u
ET301
(CHASSIS)
CN950 >007S
F910
5P
2.5A 250V
CL366
1 R2 AC POWER
C910
2 NC
0.1u TRANSFORMER
CL367
3 CENTER TAP
(MAIN)
4 NC
CL368
5 R2 AC T901
F911
(Page 36)
2.5A 250V
>008S
CN951
5P
CL369
F912
5 R1 (UPPER TAP) POWER
6.3A 250V
CL370
4 R1 (LOWER TAP)
TRANSFORMER
CL371
3 R1 GND
CL373 (MAIN)
2 R1 (LOWER TAP)
CL372
T901
1 R1 (UPPER TAP)
F913
6.3A 250V (Page 36)
RY920
D920
0.1 Q920
0.8 2PD601ART
RELAY
DRIVER