Lexmark T520 - 20ppm 8MB Par USB Pcl6 Ps3 Ppds Service Manual page 106

4520-xxx
FRU
4 Motor does not turn, no
gear error code 936 or User
message 201 Paper Jam
displays.
2-78
Service Manual
Action
Check the voltages at J12 on the
engine board.
Pin number and voltage:
J12-11 = +24 V dc
J12-8 = +5 V dc (static) 0 V dc
(when main drive motor running)
J12-7= + 5 V dc (static) 0 V dc
(when main drive motor running)
J12-6 = +5 V dc (static) +2.5 V dc
(when main drive motor running)
J12-5= +5 V dc (static) 0 V dc
(when main drive motor running)
J12-4 = +5 V dc (static) +5 V dc
(when main drive motor running)
J12-1 = + 5 V dc (static) 0 V dc
(when main drive motor running)
If the voltage is incorrect, replace the
FRUs in the following order:
1. Main drive motor assembly
2. Engine board