Casio QT-2100 Service Manual

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2. HD74HCT1G08CME (IC45,46)
5
4
V CC
1
2
3
IN B
IN A
GND
OUT Y
3. HD74LV00 (IC20,29)
11
12
13
14
V
CC
4B
4A
4Y
3B
3A
1
2
3
4
5
6
7
8
9
10
1A
GND
1B
1Y
2A
2B
2Y
3Y
A
Y
B
4. HD74LV07 (IC19,22)
5. HD74LV10 (IC28)
A
Y
11
12
13
14
V
CC
6A
6Y
5A
5Y
4A
1
2
3
4
5
6
7
8
9
10
1A
GND
1Y
2A
2Y
3A
3Y
4Y
11
12
13
14
V
CC
1C
1Y
3C
3B
3A
1
2
3
4
5
6
7
8
9
10
1A
GND
1B
2A
2B
2C
2Y
3Y
A
B
Y
C
6. HD74L1G00 (IC18)
7. HD74LV74 (IC24)
5
V
CC
OUT Y
1
2
3
4
IN B
IN A
GND
11
12
13
14
V
CC
2CLR
2D
2CK
2PR
2Q
1
2
3
4
5
6
7
8
9
10
1CLR
GND
1D
1CK
1PR
1Q
1Q
2Q
D
CK
PR CLR
QQ
D
CK
CLR PR
QQ
8. HD74LV86 (IC27)
9. HD74LVC08 (IC23,25)
11
12
13
14
V
CC
4B
4A
4Y
3B
3A
1
2
3
4
5
6
7
8
9
10
1A
GND
1B
1Y
2A
2B
2Y
3Y
A
Y
B
11
12
13
14
V
CC
4B
4A
4Y
3B
3A
1
2
3
4
5
6
7
8
9
10
1A
GND
1B
1Y
2A
2B
2Y
3Y

Casio QT-2100 Specifications

General

Brand	Casio
Model	QT-2100
Category	Cash Register
Language	English