Sony STR-DG720 Service Manual ▷ View online
STR-DG720
STR-DG720
17
17
C-CH
SR-CH
FR-CH
SL-CH
FL-CH
FR-IN
FL-IN
SW
SEL
C
SEL
SL
SEL
R-CH
R-CH
R-CH
R-CH
ELECTRICAL VOLUME
IC400
VCC
VEE
+7V
SEL
SW
MCU
I/F
–7V
SW OUT
C OUT
SL OUT
FL OUT
• Signal path
: TUNER (FM/AM)
: VIDEO (AUDIO)
: CD (ANALOG)
• R-ch is omitted due to
: TUNER (FM/AM)
: VIDEO (AUDIO)
: CD (ANALOG)
• R-ch is omitted due to
same as L-ch.
117
21
24
24
AUDIO
L
R
VIDEO 2 IN/
PORTABLE AV IN
TV
AM
DMPORT AMP
IC3002
TN1
TUNER UNIT
SYSTEM
CONTROL
IC1010 (1/6)
SA-CD/CD/CD-R
L
R
L
R
J298 (2/2)
R-CH
TUNE_LAT
R–CH
22 TUNE_DI
23 T_CLK
23 T_CLK
VOL_DA
RCH
VOL_CL
US,CND MODEL
AEP,TH MODEL
RDS SIGNAL
TUNE_DO
L-CH
R-CH
SD
CE
DO/ST/SD
DI
CL
C LINK_RX
C LINK_TX
DET
L
5
6
7
6
7
13
14
2
4
R
VBUS+5V
VIDEO 5V
R-CH
R-CH
R-CH
R-CH
TU+9V
100 CLINK_RX
CLINK_TX
101 CLINK_DET
XM RESET
XML
XMR
XMR
11
10
10
XM RESET 94
XMDACMS
XM DBPOWER
XM DACMS 2
FM 75Ω
COAXIAL
ANTENNA
DMPORT
J1302
DC 5V
0.7A MAX
-3
-4
-5
-6
L
R
R-CH
-3
-4
-2
-3
86 RDS INT/XMDBPOWER
87
87
99
RDS DATA
AEP MODEL
RDS INT
RDS DATA
17
DMPORT_VIDEO
DMPORT VIDEO
63
34
AUDIO IN
L
L
R
VIDEO 1
J404 (1/2) J401 (1/2)
R-CH
-3
-4
R-CH
AUDIO OUT
L
R
J404 (2/2)
VIDEO 1
-1
-2
R-CH
OUT
L
R
J401 (2/2)
SA-CD/CD/CD-R
-1
-2
IN
IN
L
R
J403
-1
-2
SAT
AUDIO IN
DVD
AUDIO IN
12
8
10
11
11
75
14
13
18
17
SW-CH
16
71
70
68
72
43
41
47
51
39
55
51
39
55
61
15
SBL
SEL
SEL
SBL OUT
SBL-CH
66
20
SBR-CH
19
76
27
29
L
SEL
3
1
4
2
+5V REG
IC1012
2
1
+6.3V REG
IC4001
2
1
+4.1V REG
IC4100
F4001
+6.3V
+4.1V
RECT
D4001
R2 AC
R2 AC
F4002
DIGITAL
SECTION
B
DIGITAL
SECTION
A
POWER
SECTION
F
VIDEO
SECTION
C
XM
SECTION
D
POWER
SECTION
E
JR435
• Abbreviation
CND : Canadian model
TH : Thai model
CND : Canadian model
TH : Thai model
5-1. BLOCK DIAGRAM – TUNER/AUDIO Section –
(Page 21)
(Page 23)
(Page 18)
(Page 18)
(Page 23)
(Page 19)
Ver. 1.1
STR-DG720
STR-DG720
18
18
DPSOA
DPSOD
DPSOC
DPSOC
DPSOB
DOUT
9
2
3
3
NONAUDIO
AUDIO 24
XMCK
20
97
DPSIA
78
CKOUT 13
BCK 14
LRCK 15
DATAO
64
71
70
65
71
70
65
X1302
25MHz
X1301
12.288MHz
CLKIN 142
DPFSCK 94
DPDVLRCK 86
XTAL 143
15
49
65 75 73
64
FLAG1
ERROR
HDMI ERROR
HDMI SPDIF
BCK
MCK
SD0-SD3
LRCK
21
22
SCKI
6
BCK
8
LRCK
7
45
46
47
48
38
37
36
35
47
17
INPUT
DATA
DEMODULATOR
Pa,Pb DETECTION
LOCK
DETECTION
MICROPROCESSOR
I/F
C bit DETECTION
34
16
DPSIB
SD2
SD1
SD0
SD3
79
DPSIE
82
DPSIC
80
DPSID
81
16
DVD
IN
DIGITAL
(ASSIGNABLE)
(COAXIAL)
1
TV
IN
(OPTICAL)
OUT
OPTICAL
RECEIVER
IC1352
IC1303
DIGITAL AUDIO
INTERFACE RECEIVER
IC1301
J1301
2
3
WAVE
SHAPER
+3.3V
VDD
FL-IN
DIGITAL
DECIM.
FILTER
ADC
IC1401
DSP EX3
IC1009
CLOCK SELECTOR
IC1008
8
DSP_SELECT
50
DIR ERROR
63
DIR DA
TAO
DSP
RESET
HDMI_FSRA
TE
DSP
SPIDS
DSP
MOSI
DSP
SPICLK
DSP
MISO
RESET
SPIDS
MOSI
SPICLK
MISO
FLAG0
DIR CLK
66
74ACT153_B
67
74ACT153_A
DIR CE
DIR DI
DIR DO
DIR XST
ATE
CLK
CE
DI
DO
CKSEL1
38
48
DIR XMODE
39
29
DIRCKST
XMODE
XST
ATE
5
XOUT
DIN2
1
SAT
IN
(OPTICAL)
OUT
OPTICAL
RECEIVER
IC1351
3
DIN0
XIN
D1301
D1501
SYSTEM
CONTROL
IC1010 (2/6)
TUNER/
AUDIO
SECTION
B
TUNER/
AUDIO
SECTION
HDMI RE
SECTION
A
G
$3
MOD.
DSP
INT
11
14
26
27
DAC_MUTE
DAC_DI
DAC_CLK/XMDACMC
DAC_A
TC
XMDACMDI
MUTE
M
12
1
MC
13
4
MD
3
DIN3
FL OUT
R-CH
VO3L
VO3R
VO1L
VO1R
VO2L
VO2R
9
5
26
25
7
AMP
IC1406
7
8
10
2 MCK
3 BCK
3 BCK
LRCK
US,CND MODEL
4
DPDVBCK 87
8CH DAC
IC1452
DAC
DIN1
SL OUT
R-CH
5
R-CH
22
21
7
XM
SECTION
H
POWER
SECTION
I
XM DACMDI
XM DACMC
PROTECTOR
AMP
IC1404
DAC
DIN2
C OUT
5
23
7
SW OUT
3
24
1
AMP
IC1405
DAC
VO4L
VO4R
DIN4
SBL OUT
5
19
7
20
AMP
IC1403
DAC
13
VINL
FR-IN
14
VINR
D1504
D1503
D1502
SELECTOR
IC1302
7
5 IC1
3
14 2
IC3
4 IC2
1Y
ERROR
DETECT
IC1017
5
1 A
2
6
B
A/B
Y
IC1016
1
8
A B
4
5
6
6
SPLRCK
88
7
11
10
14
13
10
14
13
DPBCK
89
1
12
CLOCK
GENERATOR
+1.2V
VDDI
+3.3V
VDDE
74 81
125
127
122
121
126
9
SWITCH
IC1014
5
1
• Signal path
: TUNER (FM/AM)
: VIDEO (AUDIO)
: DVD (DIGITAL)
• R-ch is omitted due to
: TUNER (FM/AM)
: VIDEO (AUDIO)
: DVD (DIGITAL)
• R-ch is omitted due to
same as L-ch.
• Abbreviation
CND : Canadian model
• Abbreviation
CND : Canadian model
5-2. BLOCK DIAGRAM – DIGITAL Section –
(Page 17)
(Page 17)
(Page 21)
(Page 20)
(Page 23)
STR-DG720
STR-DG720
19
19
1
CH1 IN1
CH2 IN2
CH2 IN1
CH3 IN2
CH3 IN1
CH1 IN2
CH2 IN3
CH3 IN3
CH1 OUT
CH2 OUT
CH3 OUT
2
4
Y
P
B/
C
B
P
R/
C
R
Y
SW1
SW2
COMPONENT
SW1
SW1
COMPOSITE
SW4
SW4
COMPOSITE
SW3
SW3
COMPOSITE
SW2
SW2
COMPOSITE
SW1
SW1
COMPONENT
SW2
SW2
P
B/
C
B
P
R/
C
R
Y
P
B/
C
B
P
R/
C
R
J221
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)
(V-MUTE)
14
D210
D211
10
4
13
J211 (1/2)
3
5
SAT
IN
DVD
IN
VIDEO 1
IN
VIDEO
IN
VIDEO
IN
COMPONENT
VIDEO
–1
–2
–3
–1
-2
–3
-4
–5
–6
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 1
DVD
SAT
–2
VIDEO
IN
–1
VIDEO
OUT
VIDEO 1
-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_SW4
PS(V-MUTE)
V_SW1
V_SW1
COMPONENT SW1
COMPONENT SW2
PS(V-MUTE)
COMPOSITE SW1
COMPOSITE SW2
COMPOSITE SW3
COMPOSITE SW4
COMPONENT SW2
PS(V-MUTE)
COMPOSITE SW1
COMPOSITE SW2
COMPOSITE SW3
COMPOSITE SW4
SYSTEM CONTROL
IC1010 (3/6)
V–
–5V-3
V+
+5V-3
+15V
–15V
VOUT1
VOUT2
V-1,-2
–5V-3
V+1,+2
+5V-3
VIN1
J298 (1/2)
9
VIDEO
–1
VIDEO 2 IN/
PORTABLE AV IN
VIN2
7
VIN3
VIN5
VIN4
SW1
SW2
SW3
6
SW4
INPUT SELECT
IC210
COMPONENT VIDEO SELECT
IC220
2
SW5
35
36
37
34
33
36
37
34
33
V_SW3
32
31
31
3
CH1 IN3
5
8
10
12
12
17
15
13
15
13
DMPORT VIDEO
TUNER/AUDIO
SECTION
C
• Signal path
: VIDEO
: VIDEO
5-3. BLOCK DIAGRAM – VIDEO Section –
(Page 17)
STR-DG720
STR-DG720
20
20
58 A34
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
CEC
SCL(5V)
SDA(5V)
+5V POWER
HOT PLUG DET
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
CEC
SCL(5V)
SDA(5V)
+5V POWER
HOT PLUG DET
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
CEC
SCL(5V)
SDA(5V)
+5V POWER
HOT PLUG DET
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
CEC
SCL(5V)
SDA(5V)
+5V POWER
HOT PLUG DET
57 B34
55 A33
54 B33
55 A33
54 B33
39
SDA_SINK
1
3
4
6
7
9
3
4
6
7
9
10
12
13
15
16
18
19
12
13
15
16
18
19
1
3
4
6
7
9
3
4
6
7
9
10
12
13
15
16
18
19
12
13
15
16
18
19
CN3501
CN3502
SWITCHER
IC3503
SAT IN
10
7
38
SCL_SINK
52 A32
51 B32
49 A31
48 B31
51 B32
49 A31
48 B31
46 SCL3
45 SDA3
45 SDA3
44 HPD3
A24
B24
A23
B23
A22
B22
A21
B21
B24
A23
B23
A22
B22
A21
B21
SCL2
SDA2
SDA2
HPD2
41 DSDA
42 DSDL
42 DSDL
51 RXC+
1
VSYNC
QE23
I
QE0
128
HSYNC
127
DE
70
SPDIF
75
WS
76
SCK
SD3
I
SD0
79
MCLK
39
CSDA
40
CSCL
67
MUTE
50 RXC–
55 RXO+
54 RXO–
59 RX1+
58 RX1–
63 RX2+
62 RX2–
55 RXO+
54 RXO–
59 RX1+
58 RX1–
63 RX2+
62 RX2–
44 PWR5V
91 INT
89 RESET
91 INT
89 RESET
21 RX_HPDI
51 TMDS_S1
52 TMDS_S2
51 TMDS_S1
52 TMDS_S2
19 RX_RST
20 RS_INT
20 RS_INT
XOUT
XIN
35
11
13
EEPROMSEL1
41
TX_5VPWR
42
TX_RST
43
28
27
TX_INT
65
MUTE
33
TX
34
RX
30 HDMI_ERR
102 HDMI RX
103 HDMI TX
103 HDMI TX
88
104
7
CEC IN
HDMI RESET
HDMI REG CTRL
10
RESET
29
232C_OUT
30
232C_IN
7
CNVSS
53 TMDS_S3
54 TMDS_OEB
55 P5V_SELA
56 P5V_SELB
54 TMDS_OEB
55 P5V_SELA
56 P5V_SELB
3
10
9
EEPROM DATA SELECT
IC3521
EEPROM
IC3509
HDMI RX
IC3511
92-96,
99-105,
108-111,
114-117,
119,
121-124
35
33
33
36
32
2
HDMI SPDIF
SD0
–
SD3
HDMI ERROR
HDMI TX
IC3513
1
80
5
11
12
12
6
44
43
43
30
29
27
26
29
27
26
20
19
19
+6.3V
42
18
17
17
49-58,
61-70,
75-79
40
HPD_SINK
21
S1
22
S2
23
S3
42
OE
35
Z1
34
Y1
32
Z2
31
Y2
29
Z3
28
Y3
26
Z4
25
Y4
DATA BUFFER
Q3504
IC3501 (2/2)
5
4
1
77
76
74
73
71
70
68
67
76
74
73
71
70
68
67
64
63
63
62
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
CEC
SCL(5V)
SDA(5V)
+5V POWER
HOT PLUG DET
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
CEC
SCL(5V)
SDA(5V)
+5V POWER
HOT PLUG DET
1
3
4
6
7
9
3
4
6
7
9
10
12
13
15
16
18
19
12
13
15
16
18
19
A14
B14
A13
B13
A12
B12
A11
B11
B14
A13
B13
A12
B12
A11
B11
SCL1
SDA1
SDA1
HPD1
15
14
12
11
14
12
11
9
8
6
5
8
6
5
3
2
2
80
+5V REG
Q305
–
307
POWER DETECT
IC3501 (1/2)
POWER SELECT
IC3504
1
5
2
4
3
6
5
14
1
3
5 SDA
13
6 SCL
CN3503
BD IN
HDMI
DVD IN
HDMI
CN3504
OUT
CN3510
2 RESET
232C_OUT
232C_IN
CNVSS
3.3V
232C_IN
CNVSS
3.3V
3
5
1
5
1
7
9
8
+4.1V
HDMI+1.8V
HDMI+3.3V
4
2
4
2
1
1
3
1
+1.8V REG
IC3528
+3.3V REG
IC3527
+3.3V REG
IC3526
SYSTEM CONTROL
IC1010 (4/6)
X3501
28.322MHz
84 XTALOUT
85 XTALIN
X3502
10MHz
HDMI CONTROL
IC3519
DIGITAL
SECTION
G
12
71
I
74
7
I
10
CSCL
CSDA
CEC BUFFER
Q1103-1106
CSDA
CSCL
CSCL
RESET
HPD
INT
TX2–
TX2+
TX1–
TX1+
TX0–
TX0+
TXC–
TXC+
VSYNC
D23
I
D0
HSYNC
DE
DE
SPDIF
WS
SCK
MCLK
WS
SCK
MCLK
DSCL
DSDA
SD3
I
SD0
POWER
CONTROL
IC3516
DATA2+
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
DATA2–
DATA1+
DATA1–
DATA0+
DATA0–
CLOCK+
CLOCK–
CLOCK–
CEC
HDMI+3.3V
SCL(5V)
SDA(5V)
+5V POWER
HOT PLUG DET
1
3
4
6
7
9
3
4
6
7
9
10
12
18
15
16
16
19
13
13
DATA BUFFER
IC3507
3 SDAA
6
SDAB
2 SCLA
SCLB 7
WP
5
LRCK
BCK
MCK
BCK
MCK
5-4. BLOCK DIAGRAM – HDMI RE Section –
(Page 18)
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