4-2
SCHEMATIC DIAGRAM OF MPX BOARD (2/4) (RS4
8
5, POWER, VD IN/OUT)
+5V–F
C46
100/16
GND
C45
100/16
+5V
+9V
GND
+5V–C
CF1
3
4
5
6
7
8
9
10
1
2
R11
2.2k
D8
D7
D5
D6
R99
2.2k
R98
2.2k
R54
36k
+5V
L4
8.2
R55
36k
R10
2.2k
R7
1
R16
36k
R17
36k
C53
2.2
GND
TXD1
R31
10k
RXD1
TXD1EN
RXD2
R22
1k
R32
10k
TXD2
R52
0
R23
OPEN
D3
OPEN
D4
OPEN
D2
OPEN
D1
OPEN
R24
1k
R51
0
R49
0
TXD2EN
R25
1k
IC15
1
1A
2
1B
3
1CLR
4
1Q
5
2Q
6
2Cext
7
2Rext/Cext
8
GND
9
2A
10
2B
11
2CLR
12
2Q
13
1Q
14
1Cext
15
1Rext/Cext
16
Vcc
C51
0.1
C50
0.1
C54
0.1
GND
R27
10k
COL
C22
0.1
R36
150k
R57
150k
C33
0.1
R33
OPEN
C32
220/10
VS4
OPEN
VS2
OPEN
VS1
OPEN
VS3
OPEN
C21
100p
C20
100p
C19
100p
R8
4.7
R9
4.7
R96
OPEN
R97
OPEN
R50
4.7k
IC11
1 NC1
2 R
3 RE
4 DE
5 D
6
GND1
7
GND2
8
NC2
9
Y
10
Z
11
B
12
A
13
VCC1
14
VCC2
IC12
1
NC1
2 R
3 RE
4 DE
5 D
6
GND1
7
GND2
8
NC2
9
Y
10
Z
11
B
12
A
13
VCC1
14
VCC2
VD-EXTOUT
VD-EXTIN
D12
1
2
3
D13
1
2
3
GND
R47
47
R48
47
CN709
1
+9V
2
+5V
3
GND
4
Reserved
Attachment1
Attachment2
CN3
1
TXD+
2
TXD–
3
RXD+
4
RXD–
5
GND
6
BOARD DET
7
VD IN
8
VD OUT
Attachment1
Attachment2
RA
RB
TB
TA
TO (4/4)
(CAMERA
CONTROL
G/A,
VD GEN.)
TO (1/4)
(CPU)
TO CPU
TO CPU
1/4W
1/4W
1/4W
TO
CPU
BOARD
(TO J15)
TO
CPU
BOARD
(TO J14)
MPX BOARD (2/4)
(RS485, POWER, VD IN/OUT)
10
A
B
C
11
12
13
<INDEX>
MPX BOARD (2/4)
IC11 B11
IC12 A11,B11
IC15 A10
D1 OPEN
D2 OPEN
D3 OPEN
D4 OPEN
D5 B12
D6 B12
D7 B12
D8 B12
D12 B12,C12
D13 B12
