Flatbed Home Position Service Check - Lexmark 363dn Service Manual

Flatbed home position service check

Step
1 POR the MFP. Does the CCD move and
return to the home position?
2 Perform the home position sensor test. See
"Scanner Tests" on page
Is the sensor working properly?
3 Check JFBM1 on the controller for proper
connection.
Is it connected properly?
4 Check pin 1 in JFBM1 for voltage. The
voltage is only present when a flatbed copy
job is running. The voltage should measure
+24V AC. Is voltage present?
5 Ensure that the home position cable (JHS1)
is connected. Is the cable connected?
6 Check pin 1 in J1 for voltage. The voltage
should measure +5V DC. Pin 2 should be
GND. Is voltage present and is it correct?
Questions / actions
3-17.
Yes
Problem solved.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
Replace the flatbed unit.
See "Flatbed removal" on
page 4-24.
7013-XXX
No
Go to step 2.
Go to step 5.
Properly connect the cable.
Replace the controller
"Controller
board. See
board removal" on
page 4-13.
Properly connect the cable.
Replace the controller
board. See "Controller
board removal" on
page 4-13.
2-47
Diagnostics information