Sony STR-DG520 Service Manual ▷ View online
STR-DG520
STR-DG520
17
17
5-3. BLOCK DIAGRAM – VIDEO Section –
1
CH1 IN1
CH2 IN1
CH3 IN1
CH1 IN2
CH2 IN2
CH3 IN2
CHI OUT
CH2 OUT
CH3 OUT
3
8
10
17
15
15
2
4
Y
P
B/
C
B
P
R/
C
R
Y
SW1
SW2
COMPONENT
SW1
COMPONENT
SW2
SW2
P
B/
C
B
P
R/
C
R
J220 (1/2)
J210 (1/2)
24
75Ω
DRIVER
6dB AMP
22
75Ω
DRIVER
6dB AMP
20
75Ω
DRIVER
6dB AMP
23
PS
PS(V-MUTE)
6
14
4
13
J211 (1/2)
5
3
DVD
IN
SAT
IN
VIDEO
IN
VIDEO
IN
COMPONENT
VIDEO
-4
-5
-6
-1
-2
-3
Y
P
R/
C
R
P
B/
C
B
J220 (2/2)
MONITOR
OUT
COMPONENT
VIDEO
-7
1
75Ω
DRIVER
6dB AMP
15
3
1
75Ω
DRIVER
6dB AMP
-2
J210 (2/2)
J211 (2/2)
-8
-9
-1
VIDEO
SAT
DVD
-1
VIDEO
IN
-2
VIDEO
OUT
VIDEO
-3
VIDEO
OUT
MONITOR
+5V
REG
IC201
+5V-3
3
2
-5V
REG
IC202
-5V-3
COMP_S1
COMP_S2
COMP_S2
V_SW2
V_SW3
V_SW3
V_MUTE
V_SW1
V_SW1
COMPONENT SW1
COMPONENT SW2
COMPONENT SW2
COMPOSITE SW2
COMPOSITE SW3
COMPOSITE SW4
COMPOSITE SW3
COMPOSITE SW4
PS(V-MUTE)
COMPOSITE SW1
COMPOSITE SW1
SYSTEM CONTROL
IC1101 (3/6)
-5V
-5V-3
+5V
+5V-3
+15V
-15V
VOUT1
VOUT2
V-1,-2
-5V-3
V+1,+2
+5V-3
VIN1
VIN4
VIN5
COMPOSITE SW4
COMPOSITE
SW1
COMPOSITE SW2
COMPOSITE SW3
SW4
D211
D210
SW1
2
SW5
10
SW2
SW3
INPUT SELECT
IC210
COMPONENT VIDEO SELECT
IC220
4
3
2
5
6
7
3
2
5
6
7
V_SW4
9
• Signal path
: VIDEO
: VIDEO
STR-DG520
STR-DG520
18
18
5-4. BLOCK DIAGRAM – HDMI SW Section –
HDMI_CTRL
HDMI_DET
HDMI_OEB
HDMI_SI
SYSTEM CONTROL
IC1101 (4/6)
87
88
86
34
88
86
34
77 A24
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
SCL (5V)
SDA (5V)
HOT PLUG DET
CEC
+5V POWER
CN5001
DVD IN
4
6
6
1
3
3
7
9
9
10
12
15
16
19
13
18
12
15
16
19
13
18
B24
A23
B23
A22
B22
A21
B21
SCL2
A23
B23
A22
B22
A21
B21
SCL2
76
74
73
71
70
68
67
64
74
73
71
70
68
67
64
15 A14
B14
A13
B13
A12
B12
A11
B11
A13
B13
A12
B12
A11
B11
OEB
S1
14
12
11
12
11
9
8
6
5
8
6
5
SCL1
SDA1
SDA1
3
2
2
HPD1
80
25 Y4
Z4
Y3
Z3
Y2
Z2
Y1
Z1
Y3
Z3
Y2
Z2
Y1
Z1
26
28
29
31
32
34
35
28
29
31
32
34
35
SCL SINK
SDA SINK
SDA SINK
38
39
39
HPD SINK
40
SDA2
HPD2
HPD2
63
62
62
CN5002
4
6
6
1
3
3
7
9
9
10
12
15
16
19
13
18
12
15
16
19
13
18
CN5003
4
6
6
1
3
3
7
9
9
10
12
15
16
19
13
18
12
15
16
19
13
18
1
LEVEL SHIFT
IC5004
HDMI RECEIVER/TRANSCEIVER
IC5001
ANALOG SWITCH
IC5005
5
4
5
3
7
1
6
3
4
42
21
1
POWER
CONTROL
4
2
1
+5.8V
REG
3
1
+3.3V
REG
IC5003
IC5006
HDMI+3.3V
+7V (VCC)
IC5002
OUT
BD IN
HDMI
STR-DG520
STR-DG520
19
19
83
FL DISPLAY DRIVER
IC100
14
I
29
•
31
82
29
30
5
6
65
64
64
54
SW NETWORK
S101-107,124
RV102
MASTER
VOLUME
VOLUME
56
51
49
49
28
27
27
77
+3.3V
(STBY)
X1
X0
SDA
38 DCAC_IN
EXCEPT US,CND MODEL
SCL
POWER_KEY
FLASH1/DMPORT_TX
FLASH2/DMPORT_RX
MD2
MD0
FLASH2/DMPORT_RX
MD2
MD0
RSTX
SDA
SCL
EEPROM
IC1131
X1101
24MHz
SIRCS
F1
F2
F2
75
FL_DATA
7 DIN
76
FL_LAT
9 STB
74
FL_CLK
8 CLK
GRID1
I
GRID11
SEG1
I
SEG17
VOL_ENCODER(A)
VOL_ENCODER(B)
VOL_ENCODER(B)
ENC_A
DMPORT_RX
DMPORT_TX
ENC_B
A/D2
SW NETWORK
S108-111,120
A/D1
2
3
3
31
32
32
RV101
INPUT
INPUT
SELECTOR
2
3
3
2
REMOTE
CONTROL
SIGNAL
RECEIVER
IC103
OUT
SIRCS
SYSTEM
CONTROL
IC1101 (5/6)
BUFFER
IC101
CNS504
S153
@
FLASH2
MD2
MD0
RESET
MD2
MD0
RESET
5
6
FLASH1
8
9
3
9
3
FLASH
PROGRAMMING
1
2
39
40
FL101
VACUUM
FLUORESCENT
DISPLAY
IC1111
RESET
42
I
32
9
4
2
8
6
3
1
5
MIC AMP
IC2000
DETECT
D2013,2014
AUTO CAL MIC
J2000
TUNER/AUDIO
SECTION
D
• Abbreviation
CND : Canadian model
CND : Canadian model
5-5. BLOCK DIAGRAM – KEY/DISPLAY Section –
(Page 15)
Ver. 1.1
STR-DG520
STR-DG520
20
20
5-6. BLOCK DIAGRAM – POWER Section –
6
2
3
3
DRIVE
POWER AMP
Q701-704
CURRENT
DETECT
Q711,712
RY350
PRE DRIVER
IC701
IN 1
+VOUT1
-VOUT1
R
L
L
AUDIO
OUT
SUB
WOOFER
CENTER
SURROUND
R
R-CH
R-CH
L-CH
R-CH
SL-CH
C-CH
R-CH
SR-CH
R-CH
TUNER/
AUDIO
SECTION
C
RY901
D920
F1
F2
F2
-20V
+3.3V
(STBY)
+7V
(VCC)
+5V
-7V
+7V
TU+9V
-20V
RECT
D950-953
D990
D991
D1001
D1108
D1107
OVERLOAD
DETECT
D720,Q720
8
61
12
11
11
DRIVE
POWER AMP
Q651-654
CURRENT
DETECT
Q661,662
-20V REG
Q930
B-SWITCH
Q500,501
RELAY
DRIVER
Q901
AC IN
DETECT
Q990
PRE DRIVER
IC601
IN 2
+VOUT2
-VOUT2
OVERLOAD
DETECT
D670,Q670
6
2
3
3
DRIVE
POWER AMP
Q801-804
CURRENT
DETECT
Q811,812
PRE DRIVER
IC801
IN 1
+VOUT1
-VOUT1
OVERLOAD
DETECT
D820,Q820
RY355
RY301
70
PROTECTOR
D320,325-327
Q320,321,325
D320,325-327
Q320,321,325
58
48
D1111
+9V
(STBY)
OVERLOAD
DETECT AMP
7
2
IC565
–55V
-B
+A5V
+5V
REG
1
3
IC1001
+5.8V
+5.8V
REG
1
2
IC4100
+3.3V
REG
1
3
IC1904
+9V
REG
1
3
IC1902
-15V
+15V
+7V
REG
1
3
IC350
-7V
REG
2
3
IC352
+5V
REG
1
3
IC1031
+B
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
RECT
D921
RECT
D910-913
RECT
D4001
RECT
D940-943
T901
POWER
TRANSFORMER
(MAIN)
TB604
TB601
TB607
J405
FRONT
RY375
PHONES
J790
R-CH
RELAY
DRIVER
Q375
FRONT
R
Y
HP
R
Y
C/SUR R
Y
SW_PREOUT_R
Y
HP
DET
FRONT_A_RY
PROTECTOR
HP_DETECT
FUSE_DETECT
STOP
63
55
HP_RY 62
POWER_RY
69
PRE_OUT_SW_RY
66
C/SW/REAR/SB_RY
FRONT RY
HP DETECT
HP RY
SW_PREOUT_RY
C/SUR RY
SYSTEM
CONTROL
IC1101 (6/6)
PRE
DRIVE
PRE
DRIVE
SW-CH
-55V +B
-55V +B
-55V +B
PRE
DRIVE
R910
F4001
F901
F4002
R911
R940
T902
POWER
TRANSFORMER
(SUB)
SPEAKERS
IMPEDANCE
USE 8-16Ω
RELAY
DRIVER
Q355
RELAY
DRIVER
Q301
RELAY
DRIVER
Q350
AC IN
~
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to
: TUNER (FM/AM)
• R-ch is omitted due to
same as L-ch.
(Page 15)
Click on the first or last page to see other STR-DG520 service manuals if exist.