Lexmark C750 Service Manual - Page 343
Lexmark C750 Manual
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5060-00x See "HCOF system board" on page 5-32 Connector CN14 Power Pin no 1 2 3 4 CN15 Feed Motor 1 2 3 4 5 CN16 Punch 1 2 3 4 5 6 7 8 9 10 11 12 CN17 Feed 1 2 CN18 Communications 1 2 3 4 5 CN19 Joint 1 2 3 CN20 CPU Prog 1 20 Signal +24 V dc +24 V dc P-Ground P-Ground A+ AB+ BN/C +5 V dc Drop Timing Sensor Ground +5 V dc Punch Home Sensor Ground +5 V dc Punch Timing A Sensor Ground +5 V dc Punch Timing B Sensor Ground SOL+ SOL TxD SG RxD SG FG Switch - PTR Joint N/C Ground Connector locations 5-31
Connector locations
5-31
5060-00
x
CN14 Power
1
+24 V dc
2
+24 V dc
3
P-Ground
4
P-Ground
CN15 Feed Motor
1
A+
2
A-
3
B+
4
B-
5
N/C
CN16 Punch
1
+5 V dc
2
Drop Timing Sensor
3
Ground
4
+5 V dc
5
Punch Home Sensor
6
Ground
7
+5 V dc
8
Punch Timing A Sensor
9
Ground
10
+5 V dc
11
Punch Timing B Sensor
12
Ground
CN17 Feed
1
SOL+
2
SOL -
CN18 Communications
1
TxD
2
SG
3
RxD
4
SG
5
FG
CN19 Joint
1
Switch - PTR Joint
2
N/C
3
Ground
CN20 CPU Prog
1
20
See
“HCOF system board” on page 5-32
Connector
Pin no
Signal