Lexmark X46 Series, Service Manual

Page: 96 / 310

2-58
Service Manual
7014-xxx
Flatbed home position service check
Step Questions / actions Yes No
1 POR the MFP. Does the CCD move and
return to the home position? Problem solved. Go to step 2.
2 Perform the home position sensor test. Go
to
“Scanner Tests” on page 3-34 .
Is the sensor working properly?
Go to step 3. Go to step 5.
3 Check J28 on the controller board for proper
connection.
Is it connected properly?
Go to step 4. Properly connect the cable.
4 Check pin 1 in J28 for voltage. The voltage
is only present when a flatbed copy job is
running. The voltage should m24V
AC. Is voltage present? Go to step 5. Replace the controller
board.
“Controller board
removal” on page 4-8
5 Ensure that the home position cable (J13) is
connected. Is the cable connected? Go to step 6. Properly connect the cable.
6 Check pin 1 in J13 for voltage. The voltage
should m5V DC. Pin 2 should be
GND. Is voltage present and is it correct? Replace the flatbed unit.
See
“Flatbed removal” on
page 4-89 .
Replace the controller
board.
“Controller board
removal” on page 4-8 .