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BD-HP75U
[10] RS232C CIRCUIT SCHEMATIC DIAGRAM
RS232C
To MAIN
P4701
R4701
N0480GE
1K
CY
1
AT_3.3V
2
RS232C_RXD
3
RS232C_TXD
4
GND
C4701
C4702
100u
0.1u
6.3V
16V
16
15
14
SHON
VCC
GND
EN
C1+
V+
1
2
3
C4704
0.1u
R4702
C4703
10K
0.1u
CY
16V
PWB
C4709
47P
PWB
13
12
11
10
9
T1
NC
T1
NC
R1
OUT
IN
OUT
IC4701
M3221EIP
C1-
C2+
C2-
V-
R1
IN
4
5
6
7
8
C4705
C4706
0.1u
0.1u
16V
16V
16V
7 – 10
13
12
5
9
4
R4705
TL4709
100
FB4701
8
1/10W
0060TA
SC4701
3
NA901WJQZ
R4706
FB4702
7
100
0060TA
TL4710
2
1/10W
6
D4701
1
BZB84B12
1
11
10
3
2
D4702
BZB84B12
FB4703
0252TA
1
3
2
NOT USE
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