Lexmark 3200 Service Manual page 33

3.1.1.10 Ready and Power LED does not light on
Cause
ADF control board-
main control PCBA
connection failure
ADF control board-
main control PCBA
cable failure
Home position
sensor board
failure
Power supply-main
control board
connection failure
Power supply fails
N = See section 1.5.3 Wiring configuration
# = Refer to section 4.6
Relevant Unit Check Method
None Visual check
Sensor board-main Tester or visual
control PCBA cable check
#
Sensor board Tester check
#
None Visual check
Power supply Tester check
(+24V, GND)
#
Table 3.4
3-11
Maintenance Remark
Method
Check connector None
and the cable
between the ADF
control board and
main PCBA board.
Check ADF control
board.
Check PCBA main None
board.
Connect the None
connector.
Replace the power None
supply.
N