Sony STR-DG520 Service Manual ▷ View online
STR-DG520
STR-DG520
37
37
E
8
A
4
D
7
3
G
C
6
2
10
F
B
1
5
9
L
F
Q
O
MAIN
CNP930
BOARD
(3/3)
(3/3)
BOARD
CNS513
DIGITAL
CN2001
BOARD
DCAC
CNP152
POWER
BOARD
IC B/D
- 1 8 . 5
-18.5
-20
-20.1
-18.2
-16.3
-14.5
-20
-20
-20
-12.6
- 1 0 . 4
- 1 4 . 6
- 1 2 . 8
- 9
- 1 0 . 9
- 1 8 . 3
- 2 0 . 2
- 1 8 . 3
- 1 0 . 9
4 . 9
- 1 4 . 6
- 1 2 . 8
- 9
- 1 0 . 9
- 1 8 . 3
- 2 0 . 2
- 1 8 . 3
- 1 0 . 9
4 . 9
- 1 8 . 5
- 1 8 . 5
- 1 8 . 5
- 1 8 . 5
- 1 8 . 5
- 1 8 . 5
- 1 8 . 4
- 1 8 . 5
- 1 8 . 4
- 1 8 . 5
- 1 8 . 5
- 1 8 . 5
- 1 8 . 5
- 1 8 . 5
- 1 8 . 4
- 1 8 . 5
- 1 8 . 4
4 . 9
2.9
0
5
5
5
5
5
5
3.3
5
5
3.3
5
0
5
0
3 . 3
3
(US,CND)
(EXCEPT US,CND)
(EXCEPT US,CND)
(EXCEPT US,CND)
(US,CND)
(EXCEPT US,CND)
EXCEPT US,CND MODEL
2200p
C106
0 . 1
C100
0 . 1
C101
0 . 1
C144
0 . 1
C145
0 . 1
C150
0 . 1
C151
220p
C110
220p
C111
220p
C147
220p
C148
220p
C149
100
R115
100
R116
100
R117
100
R119
220
R101
330
R102
680
R104
1k
R105
1.5k
R106
2.2k
R107
82k
R118
220
R108
330
R109
470
R110
10
R121
S101
S102
S103
S104
S105
S106
S107
S108
S109
S1
10
S
111
VCC
GND
OUT
IC103
NJL24H400A
1
2
3
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
11
12
13
14
15
16
17
17P
CNS102
DC-CONTROL
GND
GND
+3.3V(STDBY)
+5V
VOL_JOG_2A
VOL_JOG_2B
PW_SW
SIRCS
AD2
AD1
FL_LAT
FL_DIN
FL_CLK
INPUT_JOG_4A
INPUT_JOG_4B
DCAC_IN
GND
GND
+3.3V(STDBY)
+5V
VOL_JOG_2A
VOL_JOG_2B
PW_SW
SIRCS
AD2
AD1
FL_LAT
FL_DIN
FL_CLK
INPUT_JOG_4A
INPUT_JOG_4B
DCAC_IN
220p
C112
2200p
C107
S124
2
7
8
9 10 11 12
5
6
14
19
18
17
13
16
20
15
23 24
27
21
28
26
25
22
31
33
35
30
32
36
34
29
42
44
43
40
37
39
38
41
46
48
47
45
49 50
53
FL101
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TC74ACT08P
IC101
RV101
1
2
3
CL104
CL105
CL106
CL107
CL108
CL109
CL110
CL111
CL112
CL106
CL107
CL108
CL109
CL110
CL111
CL112
CL113
CL114
CL115
CL116
CL117
CL118
CL114
CL115
CL116
CL117
CL118
CL119
CL120
CL121
CL125
CL127
CL128
CL127
CL128
1
3
4
3
4
CN104
-20V
F1
F2
F1
F2
470
R103
1
3
4
3
4
CN101
3P
AD1
PW_SW
GND
RV102
1
2
3
50V
10
C146
50V
10
C161
R198
R199
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
35
36
37
38
39
40
41
42
43
44
PT6315
IC100
SW1
SW2
SW3
SW4
OSC
DOUT
DIN
CLK
STB
KEY1
KEY2
VSS
VDD
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG1
1
SEG12
SEG13
SEG14
SEG15
SEG16
VEE
SEG17
GRID1
1
GRID10
GRID9
GRID8
GRID7
GRID6
GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
GRID8
GRID7
GRID6
GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
CL103
10
R120
C114
0.22
50V
10
C105
1G
2G
3G
4G
5G
6G
7G
8G
9G
17P
3G
4G
16P
5G
15P
14P
13P
12P
11
P
10P
9P
8P
6P
7P
5P
4P
2P
1P
6G
7G
8G
9G
10G
11
G
3P
17P
16P
15P
14P
13P
12P
11
P
10P
9P
8P
7P
6P
5P
4P
3P
2P
1P
8P
7P
6P
5P
4P
3P
2P
1P
2G
11G
10G
10G
1G
IC103
REMOTE CONTROL
IC101
BUFFER
IC100
FL DISPLAY DRIVER
DISPLAY BOARD
INPUT SELECTOR
VACUUM FLUORESCENT DISPLAY
3 . 3
2 . 2
2 . 2
3 . 3
2 . 2
2 . 2
VDD
VSS
SIGNAL RECEIVER
MASTER VOLUME
W101
3P
2CH
A.F.D.
MOVIE
MUSIC
DISPLAY
INPUT MODE
MUTING
TUNING
+
-
TUNING
MODE
MEMORY/
ENTER
ANALOG
DIRECT
5-23. SCHEMATIC DIAGRAM – DISPLAY Section –
• See page 43 for IC Block Diagrams.
(Page 35)
(Page 35)
(Page 30)
(Page 25)
Ver. 1.1
STR-DG520
STR-DG520
38
38
5-24. PRINTED WIRING BOARDS – POWER Section –
• See page 14 for Circuit Boards Location.
•
: Uses unleaded solder.
1
A
B
C
D
E
F
G
2
3
4
5
6
7
8
9
10
11
12
13
14
1-875-591-
(12)
12
1-875-598-
(11)
11
DCDC CONVERTER BOARD
STANDBY BOARD
~ AC IN
I
H
G
MAIN
BOARD
CNP921
M
DIGITAL
BOARD
CNP512
MAIN
BOARD
CNP940
MAIN
BOARD
CNP912
N
DIGITAL BOARD
CNP505
T901
POWER
TRANSFORMER
(MAIN)
D4001
JW4001
L4101
C4103
C4007
CN4001
CL003
CL004
CNP911
1
6
D910
C953
C910
R911
JW909
C911
D912
C999
CL901
JW914
CNP910
ET901
US,CND MODEL
3
1
D911
JW912
JW913
CN912
CN912
R902
Q990
B900
CL902
US,CND
MODEL
MODEL
CNP901
CNP902
R993
R990
T902
POWER TRANSFORMER
(SUB)
C951
D953
D951
D950
D952
1
3
4
WHT
*
*
1
1
6
1
6
5
1
RY901
JW905
ORG (US,CND)
VIO (AEP,UK)
VIO (AEP,UK)
CNP914
JW908
R903
R904
Q901
E C B
E C B
JW906
C950
JW900
CL903
JW911
C913
ORG
BLK
BRN
BLU
GRY
GRY
GRY
GRY
RED
GRY
GRY
GRY
GRY
D913
C912
JW910
JW907
C992
JS903
L
N
R901
D901
F901
D990
JS951
D991
R991
R910
1
6
JW4010
JW4011
D4805
R4100
C4102
R4102
JW4013
ORG
GRY
1
4
JW4005
JW4012
CL005
JW4003
C4002
CL002
CL001
JW4007
CL006
CN4103
JW4009
JW4014
C4009
JW4006
IC4100
JW4008
C4100
L4100
JW4002
F4001
F4002
5
3
4
2
1
Ref. No. Location
• Semiconductor
Location
D901
E-11
D910
D-9
D911
E-9
D912
E-9
D913
E-9
D950
B-9
D951
B-9
D952
C-9
D953
B-9
D990
B-10
D991
C-10
D4001 A-4
D4805 D-4
D4805 D-4
IC4100 E-4
Q901
E-11
Q990
C-10
(Page 27)
(Page 22)
(Page 22)
(Page 22)
(Page 27)
STR-DG520
STR-DG520
39
39
4
7
C
1
6
F
8
B
E
D
3
5
2
G
9
A
BOARD
CNP912
(3/3)
MAIN
G
N
BOARD
CNP505
(3/3)
DIGITAL
H
I
MAIN
(3/3)
BOARD
CNP940
CNP921
MAIN
(3/3)
BOARD
BOARD
DIGITAL
M
(1/3)
CNP512
IC B/D
0.8
0.2
0
0.6
(US,CND)
(AEP,UK,AUS,ECE)
(TW)
US,CND MODEL
US,CND
MODEL
16
5.7
3.3
2.3
IC4100
~
~
50V
1
C992
1
R902
RY901
RELAY
E
ET901
CL902
JS951
1
2
3
2
3
3P
CNP910
R2 AC
R2 CENTER TAP
R2 AC
R2 CENTER TAP
R2 AC
25V
1000
C913
1
3
3
CNP901
2P
LIVE
NEUTRAL
NEUTRAL
16V
C953
3300
25V
2200
C912
1
4
4
CNP902
2P
LIVE
NEUTRAL
NEUTRAL
F901
0.1
C910
0.1
C911
2SC3052EF-T1-LEF
Q990
AC IN DETECT
22k
R991
10k
R993
47k
R990
0.1
C951
0.1
C950
MA2J1110GLS0
D901
MA2J1110GLS0
D991
MA2J1110GLS0
D990
1
3
4
8
6
T902
POWER TRANSFORMER
(SUB)
1
2
3
4
5
6
2
3
4
5
6
CNP911
6P
R2 AC
R2 AC
R2 CENTER TAP
R2 CENTER TAP
R2 AC
R2 AC
R2 AC
R2 CENTER TAP
R2 CENTER TAP
R2 AC
R2 AC
2SC3052EF-T1-LEF
Q901
RELAY DRIVER
2.2k
R903
0.1
C999
1/2W
0.22
R910
1/2W
0.22
R911
JS903
Mount Mecha
492490681
B900
47k
R904
1
3
4
5
6
3
4
5
6
CN912
5P
+15V
R2 GND
STBY GND
-15V
R2 RETURN GND
1
2
3
4
5
2
3
4
5
5P
CNP914
+15V
POWER RY
STANDBY GND
STOP (AC-OFF-DET)
STANDBY (+9V)
D953
1SR154-400TE-25
D950
1SR154-400TE-25
D952
1SR154-400TE-25
D951
1SR154-400TE-25
D912
1SR154-400TE-25
D911
1SR154-400TE-25
D913
1SR154-400TE-25
D910
1SR154-400TE-25
R901
3.3M
1/2W
STANDBY BOARD
D910-913
RECT
D950-953
RECT
6.3A/125V
T2.5AL/250V
5A/250V
T2.5AL/250V
5A/250V
F901
~ AC IN
2
2
3
(MAIN)
5
2
POWER TRANSFORMER
5
3
4
4
3
2
T901
NOT REPLACEABLE:
BUILT IN TRANSFORMER.
35V
3300
C4002
CL001
CL002
CL004
C4102
0 . 1
C4007
0.47
1
3
4
3
4
CN4103
3P
DGND
NC
+5.8V
NC
+5.8V
D4001
RECT
D3SB60F3
C4009
0.47
16V
C4103
1000
1
2
3
4
5
6
2
3
4
5
6
6P
CN4001
R2 AC
R2 AC
R2 AC
R2 CENTER TAP
R2 CENTER TAP
R2 CENTER TAP
R2 AC
R2 AC
R2 AC
35V
C4100
1000
RB060M-30
D4805
CL005
L4101
100uH
L4100
100uH
R4100
1k
R4102
560
1
2
3
4
5
SI-8033S
IC4100
CL003
F4002
T3.15AL/250V
F4001
T3.15AL/250V
+5.8V REG
VIN
SWOUT
GND
VOS
S.S
DCDC CONVERTER BOARD
5-25. SCHEMATIC DIAGRAM – POWER Section –
• See page 44 for IC Block Diagrams.
(Page 28)
(Page 25)
(Page 25)
(Page 30)
(Page 25)
Ver. 1.1
STR-DG520
STR-DG520
40
40
• IC Block Diagrams
IC400 BD3471KS2 (MAIN BOARD (1/3))
IC1301 LC89056W-E (DIGITAL BOARD (1/3))
INL2
INR2
INL1
INR1
AGND
SBLIN1
SBRIN1
SLIN1
SRIN1
CIN1
SWIN1
FLIN1
FRIN1
AGND
ADCR
ADCL
AGND
AGND
SUB1R
SUB1L
FRIN2
FLIN2
SWIN2
CIN2
AGND
SRIN2
SLIN2
SBRIN2
SBLIN2
RECR1
RECL1
RECR2
RECL2
AGND
RECR3
RECL3
RECR4
RECL4
AGND
AGND
INR3
INL3
INR4
INL4
INR5
INL5
INR6
INL6
INR7
INL7
INR8
INL8
INR9
INL9
INR10
INL10
INL11
INR11
INL12
INR12
HPFN
LPF01
LPF02
LPFN2
AGND
LPFN1
SWVOL
VCC
DGND
VEE
OUTFR
OUTFL
OUTSW
OUTC
OUTSR
OUTSL
OUTSBL
OUTSBR
MainL
MainR
Mode
selector
Mode
selector
Mode
selector
Logic
FR
Volume
FL
Volume
SW
Volume
C
Volume
SR
Volume
SL
Volume
SBR
Volume
SBL
Volume
Mode
selector
Sub2
Rec
Sub2
Main
Sub1
ADC
Main
Sub1
CL
DA
EQ
Multi1
Multi2
SubR1
SubR2
SubL1
SubL2
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
64
63
65
67
66
68
70
69
71
73
72
74
76
75
77
79
80
78
39
40
37
38
36
34
35
33
31
32
30
28
29
27
25
26
24
22
21
23
IC601 STK350-530T-E (MAIN BOARD (2/3))
IC701 STK350-530T-E (MAIN BOARD (2/3))
IC801 STK350-530T-E (MAIN BOARD (2/3))
IC701 STK350-530T-E (MAIN BOARD (2/3))
IC801 STK350-530T-E (MAIN BOARD (2/3))
PROTECTOR
DRIVE
1
2 3 4 5 6
7
8 9 10 11 12 13 14 15
PRE
DRIVE
PRE
DRIVE
BIAS CIRCUIT
REG
+VOUT1
MUTE
–VOUT1
NF1
COMP1
COMP2
IN1
GND
IN2
NF2
–VOUT2
+VOUT2
VCC
VCC
VEE
DRIVE
13
14
14
CKOUT
12
A.GND
11
AV
D
D
4
DIN1
10
LPF
9
VIN
8
R
7
DVDD
6
D.GND
5
DIN2
2
DOUT
1
DISEL
3
DIN0
25
CSFLAG
33
BPSYNC
32
AUT
O
31
DGND
30
DVDD
26 27 28 29
F3/P3/C3
F2/P2/C2
F1/P1/C1
F0/P0/C0
35
DO
36
DI
34
ERROR
BCK
15
16
16
LRCK
DATAO
17
XSTATE
18
19
19
DGND
DVDD
20
21
21
XMCK
XOUT
22
XIN
23
24
24
EMPHA
AUDIO
48
47
47
XMODE
CKSEL1
CKSEL1
46
45
45
CKSEL0
DOSEL1
DOSEL1
44 DOSEL0
43
42
43
42
DVDD
DGND
DGND
41
40
40
MODE1
MODE0
MODE0
39 XSEL
38
38
37
CLK
CE
INPUT
PLL
DATA
DEMODULATOR
C BIT
DETECTION
Pa,Pb DETECTION
MICROPROCESSOR INTERF
ACE
LOCK
DETECTION
fs
CALCULATION
TIMING
X'TAL1
IC1014 TC7WH74FU (TE12R) (DIGITAL BOARD (1/3))
6
CLR
7
PR
8
VCC
5
Q
R
S
Q
3
Q
2
D
4
GND
1
CK
Q
D
C
IC1906 SI-3050KM-TL (DIGITAL BOARD (2/3))
1
VC
2
VIN
4
VOUT
5
SENSE
3
GND
TSD
–
+
+
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