Read Sony STR-DG820 (serv.man2) Service Manual online
STR-DG820
STR-DG820
5
5
2-3. SCHEMATIC DIAGRAM - MAIN Board (2/3) (AEP, ECE, UK models) -
3
BOARD
MAIN
(3/3)
BOARD
(3/3)
4
MAIN
V2
FRONT
C
CN725
BOARD
CN2223
BOARD
(2/2)
B
DIGITAL
AUDIO
DIGITAL
(Refer to
page 35 on
original
service
manual)
page 35 on
original
service
manual)
(Refer to
page 35 on
original
service
manual)
page 35 on
original
service
manual)
(Refer to
page 43 on
original
service
manual)
page 43 on
original
service
manual)
A
(2/2)
BOARD
AUDIO
CN2222
2
(1/3)
MAIN
BOARD
0
0
0
0
0
0
0
0
0
-6.8
0.6
0.6
6.9
0.1
0.2
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0
0
0
0
0
0
0
7
0
0
0
0
0
-6.9
R301
1
47k
C3037
1
C3032
1
R3022 47k
C3025
0.1
C3022
1
R3020
47k
C3026
0.1
8
7
6
5
4
3
2
1
NJM4565M(TE2)
IC3002
CC02
100p
CC52
100p
50V
C409
4.7
R451
1k
50V
C459
4.7
R402
1k
R459
1k
R409
1k
CC01
100p
CC51
100p
CC09
100p
R401
1k
R452
1k
J401
6P
CC59
100p
R453
1k
CC03
100p
CC53
100p
R403
1k
R454
1k
CC04
100p
CC54
100p
R404
1k
C403
2200p
R405
1k
50V
C458
4.7
R455
1k
R408
1k
CC05
100p
CC08
100p
50V
C408
4.7
CC58
100p
CC55
100p
R458
1k
C405
2200p
0.1
C489
100p
C449
0.1
C499
100p
C450
JR434
0
JR435
0
C430
220p
C431 220p
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
GND
GND
RECL
4
RECR4
RECL3
RECR3
RECL
2
RECR2
RECL
1
RECR1
GND
INL16
INR
16
INL15
INR15
INL1
4
INR14
INL1
3
INR13
GND
INL12
INR12
INL1
1
INR1
1
INL10
INR
10
INL9
INR
9
INL8
INR
8
INL7
INR
7
INL6
INR6
INL5
INR5
INL4
INR
4
INL3
(DC
AC_MIC)
INR3
(DCAC_MIC)
INL2
DMPOR
T_L)
INR2
(DMPOR
T_R)
INL1 (TU
NER_
L)
INR
1 (T
UNER_R)
GND
SBLIN
SBRI
N
SLIN
SRIN
CIN
SWI
N
LIN
RIN
GND
ROUT
LOU
T
GND
ROUT
SU
B
LOUT
SUB
GND
13P
CNP410
15P
CNP411
R3023
47k
R430
1k
R431
1k
JS409
JS410
JS411
JS461
JS459
JS460
JS400
1k
R449
1k
R450
J403
4P
J404
4P
JS401
R488
2.2
25V
C488 47
94
88
89
91
87
96
86
93
92
95
97
98
99
100
101
W001-002
MAIN BOARD (2/3)
VEE
VCC
6P
CNP432
(CHASSIS)
(CHASSIS)
(CHASSIS)
SA-CD/CD/
R
TV IN
R
L
R
L
L
SA-CD/CD/
CD-R IN
CD-R OUT
DVD AUDIO
R
R
L
L
IN
IN
SAT AUDIO
L
AUDIO OUT
AUDIO IN
VIDEO 1
VIDEO 1
R
R
L
7
11
D
B
6
9
10
F
5
15
K
3
G
1
12
C
E
H
8
J
4
13
A
14
2
I
MIX AMP
IC3002
BD3471KS2
IC400
IC400
INPUT SELECTOR,
ELECTRICAL VOLUME
GND
HPFN
LPF01
LPF02
LPFN2
LPFN1
SWVOL
VCC
DGND
DA
TA
CLK
VEE
FROUT
FLOU
T
SWOUT
COUT
SROUT
SLO
UT
SBROUT
SBLOUT
VIDEO2-AU_R
NC
MIC_GND
A-GND
MIC MONO
VIDEO2-AU_L
2
6
4
3
5
1
AGND
SL OUT
+7V
SBR OUT
SBL OUT
L IN
AGND
R IN
TUNER R
AGND
TUNER L
DMPORT L-
DMPORT R-
DMPORT L+
DMPORT R+
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VOL IC CLK
VOL IC DATA
VACS CTRL
PROTECTOR
+7V
-7V
FR OUT
AGND
FL OUT
SW
AGND
C OUT
SR OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
50V
C3034
4.7
R3021
47k
C3027
1
R3012
47k
R3013
47k
R3010
47k
50V
C3024
4.7
R487
2.2
25V
C487
47
(Page 4)
(Page 6)
(Page 6)
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