Sony STR-DH720 / STR-DH720HP Service Manual ▷ View online
STR-DH720/DH720HP
49
IC203 NJM2505AF (TE2) (STANDBY-A VIDEO PC BOARD)
IC400 BD3470KS2 (MAIN BOARD (3/4))
4 Vin
VGND
V+
GND
Vout
–
+
+
1
2
3
5
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
STR-DH720/DH720HP
50
IC220 NJM2586AM (STANDBY-A VIDEO PC BOARD)
IC210 NJM2595M-TE2 (STANDBY-A VIDEO PC BOARD)
1
VOUT1
2
SW5
8
V-
3
VIN5
4
SW3
5
VIN4
6
SW4
7
VIN3
S3
S1
S2
S4
S6
S7
S5
16 V+
SW2
VIN2
VIN2
VOUT2
SW1
VIN1
GND
VOUT3
VIN1
GND
VOUT3
6dB
AMP
75ȍ
DRIVER
10
9
15
14
13
12
11
13
12
11
-V
+V
6dB
AMP
75ȍ
DRIVER
CONT1
CONT2
6dB
AMP
75ȍ
DRIVER
CONT1
6dB
AMP
75ȍ
DRIVER
CONT1
CONT2
CONT2
1
2
3
4
5
6
8
9
10
11
12
24
23
22
21
20
19
17
16
15
14
13
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
BIAS
CH1 IN1
SW1
CH1 IN2
SW2
CH1 IN3
GND
CH2 IN1
GND
CH2 IN2
GND
CH2 IN3
CH1 OUT
PS
CH2 OUT
V+2
CH3 OUT
GND
7
18
V+1
V-2
CH3 IN1
V-1
CH3 IN2
GND
CH3 IN3
STR-DH720/DH720HP
51
IC4101 NJM2903V (TE2) (USB BOARD)
A OUTPUT
A- INPUT
A+ INPUT
GND
+
A
1
2
3
4
+
B
B+ INPUT
B- INPUT
B OUTPUT
V+
8
7
6
5
IC4100 BU81459KV-E2 (USB BOARD)
AM
UTE
DA
VDD
RESETX
SEL_
S
LA
V
E
SEL_
M
P
3
SE
L_
D
O
U
T
SEL
_VOL
SEL_
A
P
LA
Y
SEL
_U
TP
KT
IR
P
TO
KE
Y_
R
O
W
1/
MCHN
G
KEY_
R
O
W
2/
BUS
Y
KEY_
C
O
L1/
A
0
DVDDIO
TEST3
SD_CON
TMODE
DVSS
LED_PUSB/TEST12
LED_PSD/TEST11
LED_PLAY/TEST10
DA
VS
S
LACK
LED_ERROR/TEST9
XOUT_
PLL
XI
N_
PL
L
TEST_
PLL
REX
TI
AV
S
S
C
SD_CLK
SD_DI
SD_CS
DVSS
TEST4
TEST5/
CLKOUT12
DVDD_M2
TEST6
TEST7
AVDDC
TEST
2
SD_DO
TEST8
VO
REF
I
VD
DPL
L
BCK
TEST17
TEST16
TEST15
DATA
DVDDIO
ATEST1
RD
ACO
VCDA
C
O
Audio DAC
AAC / WMA /
MP3
Decoder
PLL
USB
PHY
System
Controller
FAT
File system
KE
Y_
R
O
W4
/S
DA
TEST13
DVDD_M1
TEST14
SD I/F
Controller
Sound Effecter
KEY_
RO
W
3/
S
C
L
KE
Y
_C
O
L2
/A
1
KEY_
C
O
L3/
SE
L_
S
M
AN
US
B
_DM
US
B
_DP
VS
S
_P
LL
LDACO
USB
Controller
LDO
I2C I/F
Controller
iPod
Controller
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
STR-DH720/DH720HP
52
• IC Pin Function Description
D-VIDEO BOARD (1/4) IC3000 MB91F627PMC-GE1 (HDMI CONTROLLER)
D-VIDEO BOARD (1/4) IC3000 MB91F627PMC-GE1 (HDMI CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VSS
-
Ground terminal
2
C
-
Regulator stabilization capacity
3
NO_USE
-
Not Used
4
MU_SDA
I/O
Communication line between Main Micom and Video Micom - I2C SDA
5
NO_USE
-
Not Used
6
MU_SCL
I/O
Communication line between Main Micom and Video Micom - I2C SDL
7
NO_USE
-
Not Used
8
NON_LPCM
O
HDMI: Non LPCM Stream Info Line Notifi cation
9
MUTE
O
HDMI: Audio Mute Request
10
SEL_JIG_ST
O
UART Selector A: Chip Select
11
SEL_USB_UP_ST
O
UART Selector B: Chip Select
12
USB_UPDATE_TX
I
UART Selector B: USB Update UART Tx
13
USB_UPDATE_RX
I
UART Selector B: USB Update UART Rx
14
SEL_USB_UPDATE
O
UART Selector B: Chip Enable
15
SEL_JIG
O
UART Selector A: Chip Enable
16
CSDA
I/O
HDMI: Communication Line - I2C SCL for HDMI-Rx, HDMI-Tx, EDID device
17
NO_USE
-
Not Used
18
CSCL
I/O
HDMI: Communication Line - I2C SCL for HDMI-Rx, HDMI-Tx, EDID device
19
NO_USE
-
Not Used
20
RESET
-
UCOM Reset input
21
MD0
-
UCOM Mode setting terminal
22
MD1
-
UCOM Mode setting terminal
23
XIN
-
UCOM Oscillator connecting terminal
24
XOUT
-
UCOM Oscillator connecting terminal
25
VSS
-
Ground terminal
26
NO_USE -
Not
Used
27
NO_USE
-
Not Used
28
NO_USE
-
Not Used
29
NO_USE
-
Not Used
30
NO_USE
-
Not Used
31
NO_USE
-
Not Used
32
NO_USE
-
Not Used
33
NO_USE
-
Not Used
34
232OUT_TX
O
Flash Programming: Update data Tx
35
232IN_RX
I
Flash Programming: Update data Rx
36
SCK
O
Flash Programming: Update data Sck
37
NO_USE
-
Not Used
38
TX_5VPWR
O
HDMI: 5V Power for HDMI-Tx Device
39
RX_RST
O
HDMI: RESET for HDMI-Rx Device
40
RX_INT
I
HDMI: Rx Interrupt port from HDMI-Rx Device
41
TX_RST
O
HDMI: RESET for HDMI-Tx Device
42
TX_INT
I
HDMI: Tx Interrupt port from HDMI-Tx Device
43
NO_USE
-
Not Used
44
NO_USE
-
Not Used
45
AVCC
-
Analog power supply pin for A/D converter
46
AVRH
-
Standard power supply pin for A/D converter
47
AVSS
-
Analog ground for A/D converter
48
NO_USE
-
Not Used
49
NO_USE
-
Not Used
50
VSS
-
Ground terminal
51
VCC
-
Power supply pin (+3.3V)
52
NO_USE
-
Not Used
53
NO_USE
-
Not Used
54
NO_USE
-
Not Used
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