XE-A302U
CIRCUIT DIAGRAM AND PWB LAYOUT
– 23 –
EFCB322513T
S X 8
JUMPER WIRE
(CI)
1000pF*
5
100ohm
*5
EFCB322513T
S X 8
1000pF*
5
100ohm
*5
CD1
RD1
SD1
ER1
CI1
DR1
RS
1
CS
1
CI2
SD2
DR2
CD2
CS
2
CI/+5V
ER2
RD2
RS
2
P9
1
1,3,4
RXD
1
1
/CD1
1
/DR1
1
/C
TS1
1
/C
TS2
3
RXD
2
1
/DR2
3
/CI2
3
/CD2
3
/RS2
1
/ER2
1
TX
D2
1
/RS1
1
/ER1
1
TX
D1
1
/S9
3
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
C1
25
0.1u
F
C1
22
0.1uF
+
C1
24
10u
F/50V
C1
11
0.1uF
C1
26
0.1uF
C1
27
C128
C129
C1
30
R161
10
K
C1
31
R1
62
R148
10K
R1
63
R1
64
R1
47
10
K
R1
65
R1
66
FB14
R1
59
10
K
C1
14
0.1u
F
FB15
FB16
CN1
0
RS232C CN(D-SUB
9Pin)
1
2
3
4
5
6
7
8
9
FB17
FB18
FB19
FB20
FB21
FB6
CN1
1
RS232C CN(D-SUB
9Pin)
1
2
3
4
5
6
7
8
9
R1
49
10
K
Q13
KR
C111S
B
E
C
C117
10
00pF
C1
12
0.1u
F
C1
10
0.1u
F
IC27
HIN211
12
14
15
16
7
6
20
21
8
5
26
22
19
24
13
17
2
3
1
28
9
4
27
23
18
25
11
10
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
T4IN
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
/EN
V+
V-
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
R5IN
/SHDN
VCC
10
R1
55
10
K
R1
56
10
K
R1
57
10
K
FB9
R1
58
10
K
F7
T500mA/250
V
R1
51
C1
19
10
00pF
R160
10K
FB10
FB7
FB11
FB8
C1
15
0.1uF
R1
50
FB12
+
C1
13
10u
F/50V
SP
1
13
2
R1
52
R1
53
C120
1000pF
FB13
D1
7
1SS3
55
A
K
C1
18
10
00pF
C116
10
00pF
IC28
HIN211
12
14
15
16
7
6
20
21
8
5
26
22
19
24
13
17
2
3
1
28
9
4
27
23
18
25
11
10
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
T4IN
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
/EN
V+
V-
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
R5IN
/SHDN
VCC
10
C1
21
0.1u
F
C1
23
0.1u
F
R1
54
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
7/7
RS232 DRIVER