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STR-DH550/DH750
STR-DH550/DH750
25
25
5-10. SCHEMATIC DIAGRAM – MAIN Board (2/7) –
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MAIN BOARD (2/7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
25
24
28
27
29
31
30
26
(CHASSIS)
-59
-59
0
-59
0
3.3
-59
0
3.3
3.3
0
14
0
0.1
0.8
0.8
0.2
0.8
0.2
0.8
0.2
0.8
0.2
SB-LR-RY
LR-RY
BRIDGE-RY
FL_SP
SR_SP
C-SURR-RY
HP-RY
SL_SP
FR_SP
C_SP
AGND
C935
0.1u
C934
0.1u
C912
2200u
25V
C913
1000u
25V
C062
220p
C063
220p
C064
220p
C065
220p
C068
220p
C930
6800u
C931
6800u
C320
220u
10V
C323
220u
10V
C325
10u
50V
CL931
CL372
CL358
CL359
CL855
CL856
CL857
CL361
CL363
CL362
CL364
CL356
CL371
CL370
CL360
CL357
CL373
CL369
CN391
4P
1
HP-Detect
2
R-CH
3
GND
4
L-CH
CN951
5P
1
R1 (UPPER TAP)
2
R1 (LOWER TAP)
3
R1 GND
4
R1 (LOWER TAP)
5
R1 (UPPER TAP)
D327
BAV70
D326
BAV70
D921
D5SBA60-F
D937
DA2J10100L
D350
DA2J10100L
D920
DA2J10100L
ET301
C910
0.1u
C911
0.1u
D911
D910
D910 ~ D913
GS1G
D912
D913
CL366
CL368
CL367
CN950
5P
1
R2 AC
2
NC
3
CENTER TAP
4
NC
5
R2 AC
F911
2.5A 250V
F910
2.5A 250V
F913
6.3A 250V
F912
6.3A 250V
Q323
MSB92T1G
PROTECTOR
Q320
MSB92T1G
PROTECTOR
Q929
2PD601ART
RELAY
DRIVER
Q350
2PD601ART
RELAY
DRIVER
Q324
2PD601ART
PROTECTOR
Q920
2PD601ART
RELAY
DRIVER
Q325
2SC2713-G
PROTECTOR
Q321
2PD601ART
PROTECTOR
R937
330
R938
330
R940
330
R939
330
R012
10
R015
10
R018
10
R926
33
R013
10
R920
33
R014
10
R351
33
6.8k
R325
47k
R925
2.2k
R921
39k
R326
10k
R327
1k
R328
2.2k
R350
47k
R353
47k
R927
2.2k
R928
22k
R320
22k
R323
RY350
12V
1
2
3
4
5
6
D365
DA2J10100L
Q365
2PD601ART
RELAY
DRIVER
R365
33
1k
R367
47k
R366
RY365
12V
1
2
3
4
5
6
D355
DA2J10100L
Q355
2PD601ART
RELAY
DRIVER
R356
33
1k
R355
47k
R358
RY355
12V
1
2
3
4
5
6
D360
DA2J10100L
Q360
2PD601ART
RELAY
DRIVER
R361
33
2.2k
R360
47k
R363
RY360
12V
1
2
3
4
5
6
RY380
12V
RY920
W003
W001
C018
0.01u
C013
0.01u
C012
0.01u
C014
0.01u
C015
0.01u
SBR_SP
SBL_SP
C067
220p
C066
220p
CL365
CL355
R017
10
R016
10
TB503
4P
TB502
4P
TB501
6P
C016
0.01u
C017
0.01u
C322
0.01u
~
-
+
~
R
L
SURROUND
R
L
SURROUND BACK/ BI-AMP/
FRONT HIGH/ FRONT B
CENTER R
L
FRONT A
SPEAKERS IMPEDANCE USE 6-16
>004S
MAIN BOARD
(1/7)
(Page 24)
>006S
HEADPHONE
BOARD
CN107
(Page 42)
>007S
POWER
TRANSFORMER
(MAIN)
T901
(Page 36)
>008S
POWER
TRANSFORMER
(MAIN)
T901
(Page 36)
>002S
MAIN BOARD
(1/7)
(Page 24)
>005S
MAIN BOARD
(3/7)
(Page 26)
DH750
Ver. 1.2