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
