Flatbed Home Position Service Check - Lexmark MX310 Service Manual

Actions
Step 3
Replace the controller board. See
page 299.
Did this solve the problem?

Flatbed home position service check

Actions
Step 1
POR the MFP.
Does the CCD move and return to the home position?
Step 2
Perform the home position sensor test. See
page 235.
Is the sensor working properly?
Step 3
Check JFBM1 on the controller for proper connection.
Is it connected properly?
Step 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?
Step 5
Ensure that the home position cable JHOME1 is connected.
Is the cable connected?
Step 6
Check pin 1 in JHOME1 for voltage. The voltage should measure
+5V DC. Pin 2 should be GND.
Is voltage present and is it correct?
"Controller board removal" on
"Scanner tests" on
Diagnostics and troubleshooting
185
Yes No
The problem is Contact the next
solved. level of support.
Yes No
The problem is Go to step 2.
solved.
Go to step 3. Go to step 5.
Go to step 4. Properly connect the
cable.
Go to step 5. Replace the
controller board. See
"Controller board
removal" on
page
Go to step 6. Properly connect the
cable.
Replace the flatbed. Replace the
See "Flatbed controller board. See
assembly removal" "Controller board
on page 398. removal" on
page
7015
299.
299.