Signal Connections - Lexmark 4227 - Forms Printer B/W Dot-matrix Service Manual

4227-300

Signal connections

Power Supply ->Main Logic Board<-->Sub Logic Board
Power
Supply
+40 V dc
+40 V dc
Power Gnd
Power Gnd
+5 V dc
Signal Gnd
Main Logic Board<-->Parallel Interface Cable
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10
Pin 11
Pin 12
Pin 13
Pin 14
Pin 15
Pin 16
Pin 17
Pin 18
Main Logic Board
CN11
Pin 1 +40 V dc
Pin 2 +40 V dc
Pin 3 Power Gnd
Pin 4 Power Gnd
Pin 5 +5 V dc
Pin 6 Signal Gnd
Main Logic Board
Strobe
Data1
Data2
Data3
Data4
Data5
Data6
Data7
Data8
-Acknlg
Busy
PE
Select
-AF
NC
Signal Gnd
Chassis Gnd
+5 V dc
Sub Logic Board
CN4 - 4227-300
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
CN1
Pin 19 Signal Gnd
Pin 20 Signal Gnd
Pin 21 Signal Gnd
Pin 22 Signal Gnd
Pin 23 Signal Gnd
Pin 24 Signal Gnd
Pin 25 Signal Gnd
Pin 26 Signal Gnd
Pin 27 Signal Gnd
Pin 28 Signal Gnd
Pin 29 Signal Gnd
Pin 30 Signal Gnd
Pin 31 -INIT
Pin 32 -Error
Pin 33 Signal Gnd
Pin 34 NC
Pin 35 +5 V dc
Pin 36 -SE
Locations and connectors
+40 V dc
+40 V dc
Power Gnd
Power Gnd
+5 V dc
Signal Gnd
6-7