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KEY_AUTO
KEY_ONOFF
KEY_UP
KEY_DOWN
KEY_RIGHT
KEY_LEFT
WP
VCC
U6
8
R78
C72
4.7K
4
0.1u
VSS
1
A0
SCL
2
A1
3
A2
SDA
WP
7
WP
R79
24LC16B
NC
VCC
VCC
R84
R85
CN8
10K
10K
6
SCL
5
SDA
4
TxD
3
RxD
2
1
JST1X8
2.0 m m
No. 0422
R9
100#
3
12M
C70
22p
Y2
R50
12MH Z
1M
RES ET
C71
22p
3
IR Q-
VCC
R133
10K#
R63
100#
R67
100
R68
100
R69
100
R71
100
R72
100
R73
33
SDA
SDA
3
3
SCL
R76
R77
33
33
6
5
6
DC_VOL
C73
C74
22P
22P
R83
4.7K
R86 4.7K
LED_GREEN
R87
4.7K
R88 4.7K
LE D_ RED
VL-720 MAIN / DISPLAY CONTROL BOARD - SHEET 4
VCC
C69
0.1u
U5
35
43
EA/VP
AD0 / P0.0
42
AD1 / P0.1
21
41
X1
AD2 / P0.2
40
AD3 / P0.3
39
AD4 / P0.4
20
38
X2
AD5 / P0.5
37
AD6 / P0.6
36
AD7 / P0.7
10
RESET
24
A8 / P2.0
25
A9 / P2.1
14
26
INT0 / P3.2
A10 / P2.2
15
27
INT1 / P3.3
A11 / P2.3
16
28
T0 / P3.4
A12 / P2.4
17
29
T1 / P3.5
A13 / P2.5
30
A14 / P2.6
2
31
P1.0 / T2
A15 / P2.7
3
P1.1 / T2EX
4
19
P1.2
P3.7/ RD
5
18
P1.3
P3.6 / WR
6
32
P1.4
PSEN
7
33
P1.5
ALE
8
13
P1.6
P3.1 / TXD
9
11
P1.7
P3.0 / RXD
8051PL CC
LE D_ OR
R132
LE D_ GRN
10K#
KEY_ONOFF
KEY_UP
KEY_DOWN
KEY_RIGHT
+
KEY_LEFT
C130
KEY_AUTO
47uF/16V#
C75
C76
C77
0.1u
0.1u
0.1u
VCC
C79
C80
0.1u
0.1u
R81
R82
220
220
Q3
2SA1036
2
1
3
LE D_ GRN
Q4
2SA1036
2
1
3
LE D_ OR
VCC
VCC
R51
R52
R53
R54
R126
10K
10K
10K
10K
10K
LED_GREEN
LE D_ RED
R57
100
TM DS-SEL
R64
100
R65
100
R66
100/NC
R127
TxD
0/NC
RxD
R74
220
DDCA-SCL
R75
220
DDCA-SDA
CN3
1
2
3
Hi
4
5
6
Low
7
8
9
E&T 96113-8P
pitch 1.25
Keyboard
Connector
C78
0.1u#
VCC
MAX810
U7
3
2
VCC
RESET
GND
1
C81
0.1u
1,2,7
MUT E
6
ISP -EN
1
RESET _MASCOT 3
PD-AU DIO
6,7
PC-DETECT
1
DVI-CON
VBLCRL
1,3
1
1
TM DS-SEL
Ana only
Dau l
RES ET
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