Casio I/O-PB-11 Service Manual

— 9 —
3-2. Scale buffer circuit
When a measured object is put on the scale, the scale starts weighing. During
weighing, MO signal is "H". When the weighing is finished with indication of the
weight of measures object, the MO signal becomes "L".
Then EN signal is output to the scale and the scale output the weight data
(D0~D3) to the scale buffer.
Pin description of scale connector
Pin No. Signal Name Descriptions
1 NC Non connection
2 NC Non connection
3 NC Non connection
4 NC Non connection
5 NC Non connection
6 NC Non connection
7 D1 Data
8 D2 Data
9 D3 Data
10 ENABLE Enable signal
11 D0 Data
12 CLOCK Clock signal
13 MOTION Motion signal
14 RANGE Out of range signal
15 GND GND
16 GND GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NC
NC
NC
NC
NC
NC
D1
D2
D3
ENABLE
D0
CLOCK
MOTION
RANGE
GND
GND
To E570-1
1
2 3 4 5 6 7
RA1
GND
2 3 4 5 6 7
1
R13
R14
R15
R16
R17
R18
Vcc
C28
C19
9
8
11
12
11
10 14
15
IC5 IC1
IC5
IC1
7
13
14 6
515
16 4
3
17
18 2
IC8
IC8
IC8
IC8
IC8
IC8
1
1
1
19
19
19
GND
Vcc
CA1
Vcc
Vcc
GND
D1
D2
D3
ENABLE
D0
CLOCK
D6
D7
RDTM

Casio I/O-PB-11 Specifications

General

Brand	Casio
Model	I/O-PB-11
Category	Cash Register
Language	English