Lexmark 2390 003 - B/W Dot-matrix Printer Service Manual page 158

Sub Logic Board <--> Operator Panel (23XX-001)
Sub Logic Board
CN7(239X) CN8(238X)
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Sub Logic Board <--> Operator Panel (23XX-002, 003)
Sub Logic Board
CN7(239X) CN8(238X)
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10
5-18
SIGNAL GND Pin 9
SIGNAL GND Pin 8
+5 V Pin 7
LEDD Pin 6
SW LTCH Pin 5
SWD Pin 4
SIGNAL GND Pin 3
SCLK Pin 2
+5 V Pin 1
SIGNAL GND Pin 10
SIGNAL GND Pin 9
+5 V Pin 8
LEDD Pin 7
SW LTCH Pin 6
SWD Pin 5
SIGNAL GND Pin 4
SCLK Pin 3
+5 V Pin 2
MSW Pin 1
Operator Panel
CN1
SIGNAL GND
SIGNAL GND
+5 V
LEDD
SW LTCH
SWD
SIGNAL GND
SCLK
+5 V
Operator Panel
CN1
SIGNAL GND
SIGNAL GND
+5 V
LEDD
SW LTCH
SWD
SIGNAL GND
SCLK
+5 V
MSW