Sharp UP-3300 - Page 70

8 7 6 5 4
3
2 1
A
B
C D
12345678
D C
B A
R S232
FB25 BLM 31
C63 100pF
C66 330pF
C72 330pF
FB6 BLM 31
10 8
9
IC 4 C SN 75189
13
11
1 2
IC 4 D SN 75189
C221 0.1uF
C37 10uF/16V
/C I1
/C I1
VCC
C151
R115
R130
C141
FB34
BLM 31
FB35
BLM 31
FB36
BLM 31
FB38
BLM 31
R102
10K X3
C132
100pF X3
TXD 3 /D T R 3 /R T S 3 RCVDT3_1 /D S R 3 _ 1 /C T S 3 _ 1
VCC
to P R IN T E R
C68
100pF
C74
100pF
FB33
BLM 31
FB37
BLM 31
1 2 3 4 5 6 7 8 9 10
CN20
53014-1010
/R T S 1
/C T S 1
RCVDT1
TXD 1 /D T R 1
/D S R 1
/DCD1
/DCD1
CD3 RD3 ER3 SD3 GND DR3 RS3 CS3 CI3
VCKDC
14 15 12 13 10 11 8 116
3 2 5 4 7 6 9
IC 2 M C 145406
C70 100pF
FB17
BLM 31
FB10
BLM 31
FB23 BLM 31
FB20
BLM 31
FB14 BLM 31
FB1
BLM 31
+12V -1 2 V
/C T S 1 /D T R 1 /D S R 1 /R T S 1 TXD 1
RCVDT1
VCC
5 9 4 8 3 7 2 6 1
CN18
SDEB-9P
D-SUB 9PIN
GND CI1 ER1 CS1 SD1 RS1 RD1 DR1 CD1
5 9 4 8 3 7 2 6 1
CN19
SDEB-9P
D-SUB 9PIN
GND CI2 ER2 CS2 SD2 RS2 RD2 DR2 CD2
14 15 12 13 10 11 8 116
3 2 5 4 7 6 9
IC 3 M C 145406
FB18 BLM 31
FB11 BLM 31
FB24
BLM 31
FB21 BLM 31
FB15
BLM 31
FB7 BLM 31
FB26 BLM 31
C71 100pF
C73 330pF
/C T S 2 /D T R 2 /D S R 2 /R T S 2 TXD 2
RCVDT2
1 3
2
IC 4 A SN 75189
IC44 VCC---GND
C69
100pF
C75
100pF
C220 0.1uF
/R T S 2
/C T S 2
/C I2
TXD 2
RCVDT2
/D T R 2
/D S R 2
RCVDT3_1
/D S R 3 _ 1
/C T S 3 _ 1
/C I2
VCC
IC 4 4 1 4 P IN - - - V C C
7 P IN - - - G N D
RCVDT3
/D S R 3
/C T S 3
3
4
IC 4 4 B 74LV14A
9
8
IC 4 4 D 74LV14A
11
10
IC 4 4 E 74LV14A
1
2
IC 4 4 A 74LV14A
5
6
IC 4 4 C 74LV14A
13
12
IC 4 4 F 74LV14A
/DCD2
/DCD2
7 P IN - - - G N D
IC 4 14PIN - - - VC C
FB2
BLM 31
C64 100pF
C67 330pF
4 6
5
IC 4 B SN 75189
7/17
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