Casio TE-3000S - Page 69

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26. SN751178NSR (IC3)
27. SN74AHC1G32DCKR (IC4)
28. SN74LV373APWR (IC1)
■ CAT5 PCB (E468-ARC PCB)
29. HYC2000 (IC1)
120
219
318
417
516
615
714
8
1Q
1D
2Q
2D
3Q
3D
4Q 13
Vcc
8Q
8D
7D
7Q
6D
6Q
5D
912
10
4D
GND 11
5Q
Output
Control
Enable
G
Q
G
OE
D
D
G
OE
Q
Q
G
OE
D
D
G
OE
Q
D
G
OE
Q
Q
G
OE
D
D
G
OE
Q
Q
G
OE
D
1Q
1D
Output
Control
Enable
G
Q
DG
2Q
2D
Q
DG
3Q
3D
Q
DG
4Q
4D
Q
DG
5Q
5D
Q
DG
6Q
6D
Q
DG
7Q
7D
Q
DG
8Q
8D
Q
DG
1B
1A
1R
10E
2R
2A
2B
GND
Vcc
1D
1Y
1Z
2DE
2Z
2Y
2D
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1DE
1D
4
15
14
13
1Y
1Z
1R
3
2
1
1A
1B
2DE
2D
12
9
10
11
2Y
2Z
2R
5
6
7
1A
2B
A
B
GND
Vcc
Y
1
2
3
5
4
A
B
Y
1
2
4
1
2
2
2
5
4
PH-A
PH-B
Isolation
Transformer
PULSE1
RXIN
8
3
7
TXEN
126
Vref +5V GND
Pulse
Modulator
and
Differential
Driver
RS485 type
Differential
Receiver
Voltage
Threshold
Detector
RXIN
PH-B
PH-A
GND
8
7
6
5
4
3
2
1
PIN CONFIGURATION
+ 5V (Vcc)
Vref
TXEN
PULSE1