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Connec-
Pin
tor
YC24
9
MK2_ENBL
Con-
10
24V2
nected to
11
MK2_RKEY7
the key
12
MK2_RKEY6
card
13
MK2_RKEY5
14
MK2_RKEY4
15
MK2_RKEY3
16
MK2_RKEY2
17
MK2_RKEY1
18
MK2_RKEY0
19
GND
20
MK2_COUNT
YC27
1
SC_CLK
Con-
2
SC_SO
nected to
3
SC_SI
the main
4
SC_BSY
PWB
5
SC_DIR
6
SC_IRN
7
GND
YC29
1
12V5
Con-
2
12V5
nected to
3
12V5
the CCD
4
12V5
PWB
5
NC
6
LED_PWM
7
GND
8
DSI_CIS_5P
9
DSI_CIS_5N
10
GND
11
DSI_CIS_4P
12
DSI_CIS_4N
13
GND
14
DSI_CIS_3P
15
DSI_CIS_3N
16
GND
Y118240-1
Signal
I/O
I
0/3.3 V DC
O
24 V DC
O
0/3.3 V DC
O
0/3.3 V DC
O
0/3.3 V DC
O
0/3.3 V DC
O
0/3.3 V DC
O
0/3.3 V DC
O
0/3.3 V DC
O
0/3.3 V DC
-
-
O
0/3.3 V DC
I
0/3.3 V DC (pulse)
O
0/3.3 V DC (pulse)
I
0/3.3 V DC (pulse)
I
0/3.3 V DC
I
0/3.3 V DC
I
0/3.3 V DC
-
-
O
12 V DC
O
12 V DC
O
12 V DC
O
12 V DC
-
-
O
0/3.3 V DC (pulse)
-
-
I
LVDS
I
LVDS
-
-
I
LVDS
I
LVDS
-
-
I
LVDS
I
LVDS
-
-
Voltage
Key card enable signal
24 V DC power output to the key counts
Key card control signal
Key card control signal
Key card control signal
Key card control signal
Key card control signal
Key card control signal
Key card control signal
Key card control signal
Ground
Key card count signal
Scanner clock signal
Serial communication data signal
Serial communication data signal
Scanner busy signal
Scanner communication direction signal
Scanner interrupt signal
Ground
12 V DC power output
12 V DC power output
12 V DC power output
12 V DC power output
Not used
LED driver PWM signal
Ground
Serial input data
Serial input data
Ground
Serial input data
Serial input data
Ground
Serial input data
Serial input data
Ground
2-3-21
Description
Service Manual
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