Lexmark 4227-X00 Service Manual page 55

4227-X00
FRU
2 Main Logic Board
3 Tractor 2 Motor
Board /Cable Asm
2-32
Service Manual
Action
Remove Tractor 2 from the printer but leave the
cable connected.
Make sure the slider (the black plastic piece
just above the right cover) moves after turning
the printer off and then on. If the slider does
not move after turning the printer off and then
on:
• Make sure the slider and gear train are
properly connected and move freely with the
power off.
• Make sure the Tractor 2 board is receiving:
+26 V dc on CN1-1 and
+ 5 V dc on CN1-5.
If not, check the cable connection and the
voltages at main logic board CN13-1.
The upper right pin at CN13 is pin 1 (+26 V dc)
and the pin just beneath it is pin 5 (+5 V dc).
If these voltages are not present replace the
main logic board.
Check the following resistances of the Tractor 2
motor windings:
101 ± 5 ohms between pins:
1 and 6, 3 and 6,
If the motor is good, replace the board/cable
assembly.
For information on the Tractor 2 cable
"Tractor 2 Cable
connectors, see
Connectors" on page 5-21
2 and 5, 4 and 5.
.