Schematic Diagram - Main Section (2/3) - Sony STR-DG520 Service Manual
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Also See for STR-DG520:
- Operating instructions manual (72 pages) ,
- Quick setup manual (2 pages) ,
- Specifications (2 pages)
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STR-DG520
Ver. 1.1
5-9.
SCHEMATIC DIAGRAM – MAIN Section (2/3) –
1
2
3
A
15
14
13
12
11
B
C
OUT_FR_1
MAIN
OUT_FL_1
1
BOARD
OUT_C_1
(1/3)
OUT_SR_1
(Page 23)
OUT_SL_1
D
15
14
13
12
11
C753
100p
500V
E
F
15
14
13
12
11
G
H
I
R545
1
PROTECTOR
MAIN
2
BOARD
(1/3)
SW_PREOUT_RY
(Page 23)
J
K
STR-DG520
• See page 40 for IC Block Diagrams.
4
5
6
IC B/D
MAIN BOARD ( 2 / 3 )
IC601
IC601
STK350-530T-E
PRE DRIVER
10
9
8
7
6
5
4
3
2
1
C653
C654
100p
100p
JR605
JR606
500V
0
0
R600
2SA1115TP-EF
56k
C655
1.2
3p
C652
500V
100p
R654
68k
R652
R602
-1.1
2%
68k
56k
C662
C657
220
47
10V
25V
C660
10
50V
IC B/D
Q751
2SA1115TP-EF
IC701
STK350-530T-E
IC701
1.2
PRE DRIVER
10
9
8
7
6
5
4
3
2
1
-1.1
C757
47
25V
C545
C546
C754
C704
C703
10
10
100p
100p
100p
100V
100V
500V
C705
C755
C752
C702
3p
3p
100p
100p
500V
500V
Q701
R752
R702
R704
2SA1115TP-EF
R754
68k
68k
68k
68k
1.2
2%
2%
C712
220
10V
-1.1
C762
C760
C710
220
10
10
10V
50V
50V
C707
47
25V
IC B/D
IC801
STK350-530T-E
IC801
Q851
2SA1115TP-EF
PRE DRIVER
1.2
10
9
8
7
6
5
4
3
2
1
-1.1
C857
47
C853
C854
C804
C803
25V
100p
100p
100p
100p
500V
500V
C855
C852
C802
C805
3p
100p
100p
3p
500V
500V
R854
R852
R802
R804
68k
68k
68k
68k
2%
2%
Q801
C812
2SA1115TP-EF
220
1.2
10V
C862
220
10V
C860
C810
-1.1
10
10
50V
50V
C807
47
25V
7
8
9
10
Q651-654,701-704,751-754,
Q661,662,711,712,761,
Q801-804,851-854
Q762,811,812,861,862
POWER AMP
CURRENT DETECT
1.2
R661
C661
R659
B
0
Q651
4 . 7 k
220p
100
2%
55.5
0
C
C679
R656
Q661
R657
C658
0.022
2 . 2 k
0
2SA1163L-TE85L
82k
47p
C670
E
0
R670
R662
500V
22k
0 . 0 1
6 . 2 k
0.5
R664
1 . 5 k
D661
R671
MA2J1110GLS0
3 . 3 k
-0.6
-1.1
R663
B
0
R658
R665
0.22X2 5W
560
-55.7
15k
-1.1
0
C
Q652
R660
Q662
R666
C659
2SC3623ATP-LK
0
100
47p
2SA1163L-TE85L
68k
E
-44.7
500V
R761
C779
1.2
C761
B
0
R759
4 . 7 k
0.022
220p
100
2%
55.5
0
C
R756
R757
Q761
C758
0
2 . 2 k
82k
2SA1163L-TE85L
47p
E
R762
0
R770
C770
500V
0 . 0 1
6 . 2 k
22k
0.5
R764
1 . 5 k
D761
R771
R772
-0.6
MA2J1110GLS0
3 . 3 k
15k
-1.1
R758
B
R763
0
R765
0.22X2 5W
560
-55.7
15k
-1.1
0
C
Q752
R760
C759
Q762
R766
2SC3623ATP-LK
0
2SA1163L-TE85L
68k
100
47p
E
-44.7
500V
1.2
R711
C711
B
0
R709
4 . 7 k
220p
100
2%
55.5
0
C
R706
R712
Q711
R707
C708
0
2 . 2 k
6 . 2 k
2SA1163L-TE85L
82k
47p
E
0
R720
C720
500V
0 . 0 1
22k
0.5
R714
1 . 5 k
D711
R721
-0.6
MA2J1110GLS0
3 . 3 k
-1.1
R708
B
R713
0
R715
0.22X2 5W
560
-55.7
15k
-1.1
0
C
Q702
R710
C709
Q712
R716
0
2SC3623ATP-LK
100
2SA1163L-TE85L
68k
47p
E
-44.7
500V
1.2
R861
C861
B
0
R859
4 . 7 k
220p
100
2%
55.5
0
C
C879
R856
R857
R862
C858
Q861
0
0.022
2 . 2 k
82k
6 . 2 k
47p
2SA1163L-TE85L
E
0
R870
C870
500V
0 . 0 1
22k
0.5
R864
1 . 5 k
D861
R871
MA2J1110GLS0
3 . 3 k
-0.6
-1.1
B
R863
0
R865
R858
0.22X2 5W
560
-55.7
15k
-1.1
0
R880
C
47k
Q852
R860
C859
Q862
R866
0
2SC3623ATP-LK
2SA1163L-TE85L
68k
100
47p
E
-44.7
500V
1.2
R811
C811
B
0
R809
220p
4 . 7 k
100
2%
55.5
0
C
R806
R807
R812
C808
Q811
0
6 . 2 k
2 . 2 k
82k
47p
2SA1163L-TE85L
E
0
R820
C820
500V
22k
0 . 0 1
0.5
R814
1 . 5 k
D811
R821
MA2J1110GLS0
3 . 3 k
-0.6
-1.1
R808
B
R813
0
R815
0.22X2 5W
560
-55.7
15k
-1.1
0
R830
C
47k
Q802
Q812
R816
R810
C809
0
2SC3623ATP-LK
2SA1163L-TE85L
68k
100
47p
E
-44.7
500V
4
MAIN BOARD (3/3)
(Page 25)
24
24
11
12
13
Q670,720,770,820,870
Q350,355,360,375
OVERLOAD DETECT
RELAY DRIVER
R680
47k
R678
4 . 7
L678
R673
22k
R679
RY350
12V
10
Q670
4
2SC3052EF-T1-LEF
R674
0
22k
D670
MA2J1110GLS0
C671
R352
R351
10
R672
15k
47
33
50V
D350
MA2J1110GLS0
0.2
0.8
Q350
2SC3052EF-T1-LEF
R350
R353
2 . 2 k
47k
R778
4 . 7
RY355
12V
R779
10
L778
R773
22k
Q770
4
2SC3052EF-T1-LEF
R357
R356
R774
47
33
0
22k
D770
D355
C771
MA2J1110GLS0
MA2J1110GLS0
10
0.2
50V
Q355
0.8
2SC3052EF-T1-LEF
R780
47k
R355
R358
1k
47k
JR320
R728
RY360
12V
4 . 7
0
L728
R723
22k
C729
R729
R362
R361
0.022
10
47
33
Q720
4
2SC3052EF-T1-LEF
R724
D360
0
22k
MA2J1110GLS0
0.2
D720
C721
Q360
0.8
MA2J1110GLS0
2SC3052EF-T1-LEF
10
R722
15k
50V
R360
R363
1k
47k
R730
47k
R878
4 . 7
R392
RY375
680
2W
12V
L878
R873
22k
R879
10
Q870
4
R393
680
2W
2SC3052EF-T1-LEF
R874
0
R376
R377
22k
33
47
D870
C871
MA2J1110GLS0
10
D375
R872
15k
MA2J1110GLS0
50V
15.6
0
Q375
2SC3052EF-T1-LEF
R375
R378
2 . 2 k
47k
R828
4 . 7
L828
R823
22k
-47.1
C829
R829
0.022
10
Q820
Q320
4
2SA1163L-TE85L
2SC3052EF-T1-LEF
R824
0
22k
R320
100k
D820
C821
MA2J1110GLS0
10
R822
15k
50V
R327
10k
D327
D326
MA2J1110GLS0
MA2J1110GLS0
R326
R328
1k
14
15
16
CNP350
6P
7
FRONT RY
6
SW PREOUT RY
DIGITAL
5
FRONT A/ST SW RY
BOARD
C
(3/3)
4
C/SUR RY
CNP503
3
HP RY
(Page 30)
1
HP DETECT
EXCEPT US,CND MODEL
CC12
RR12
0 . 0 1
10
CC11
RR11
SPEAKERS
0 . 0 1
10
IMPEDANCE USE 8-16Ω
TB601
JS393
JS394
4P
-
L
-
FRONT
JS392
+
+
R
EXCEPT US,CND MODEL
RR15
CC15
10
0 . 0 1
TB607
2P
JS388
+
CENTER
-
JS389
EXCEPT US,CND MODEL
CC17
RR17
0 . 0 1
10
CC16
RR16
0 . 0 1
10
TB604
4P
+
L
-
SURROUND
+
R
-
HEADPHONE BOARD
CNP790
CN792
4P
4P
1
HP DETECT
HP DETETCT
1
J790
3
R-CH
R-CH
2
PHONES
4
GND
GND
3
5
L-CH
L-CH
4
C791
0 . 1
TP790
(CHASSIS)
Q320,321,325
PROTECTOR
3.3
0
Q321
2SC3052EF-T1-LEF
C320
220
10V
D325
D320
MA2J1110GLS0
MA2J1110GLS0
R325
6 . 8 k
2.9
-48.4
Q325
2SC3052EF-T1-LEF
C325
10
-55.9
39k
50V
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