Casio SA-5000 Service Manual page 33

Electronic cash register
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Data buffer for graphic data : 64KB (32KB x 2)
AD[0..15]
A[0..20]
RD#
E#
U14B
4
R/W#
5
74AC32
U14D
12
13
BHE#
74AC32
HEAD_EN#
C51
0.1 µF
U15
R73
1
VCC
2
1K
NC
3
GND
4
C
5
OUT
M51953AL
C53
0.01 µF
Power control circuit for head
+24V supplies to head when start printing.
U7D
A20
12
R61
11
A15
13
33
74AC32
0000H-7FFFH
10000H-17FFFFH
Odd
U12
AD8
11
10
D1
A0
AD9
12
9
D2
A1
AD10
13
8
D3
A2
AD11
15
7
D4
A3
AD12
16
6
D5
A4
AD13
17
5
D6
A5
AD14
18
4
D7
A6
AD15
19
3
D8
A7
25
A8
24
A9
21
A10
VCC
23
A11
2
A12
26
A13
1
A14
C46
0.1 µF
22
OE
20
CS
27
WE
M5M5256AFP-10L
U14A
1
R62
3
WRO#
6
2
33
74AC32
U14C
9
R63
8
WRO#
11
10
33
VCC
74AC32
C48
0.1 µF
CN10
FB2
1
2
EXCELSA35
3
B3PS-VH
FB3
EXCELSA35
Q9
R67
2SA1115
VCC
4.7K
R69
VCC
R70
4.7K
4.7K
R71
VCC
4.7K
VCC
R72
R74
4.7K
Q11
2SA1115
4.7K
R79
Q12
2SC2603
1K
C52
R75
0.1 µF
1K
— 31 —
0000H-7FFFH
10000H-17FFFFH
Even
U13
A1
AD0
11
10
D1
A0
A2
AD1
12
9
D2
A1
A3
AD2
13
8
D3
A2
A4
AD3
15
7
D4
A3
A5
AD4
16
6
D5
A4
A6
AD5
17
5
D6
A5
A7
AD6
18
4
D7
A6
A8
AD7
19
3
D8
A7
A9
25
A8
A10
24
A9
A11
21
A10
A12
VCC
23
A11
A13
2
A12
A14
26
A13
A16
1
A14
C47
0.1 µF
22
OE
20
CS
27
WE
M5M5256AFP-10L
2SJ177
+
C49
S
D
VP
C50
100 µF/50 V
Q7
0.1 µF
R65
R64
10K
6.8K
R66
22K
Q8
2SC2603
R68
4.7K
Q10
2SC2603
CPURES#
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A16
+24 V

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