Service Manual

2-156 Service Manual
4062
2
Check the system card assembly.
Was the system card assembly recently replaced?
Go to step 4. Contact next level
of support.
3
Replace the current operator panel assembly with the
original operator panel assembly.
Does the error remain?
Go to step 5. Problem solved.
4
Replace the current system card assembly with the original
system card assembly.
Go to “System card assembly removal (T650, T652,
T654, T656)” on page 4-76.
Go to step 6. Problem solved.
5
If problem continues, replace the original operator panel
assembly with a new and not previously installed operator
panel assembly.
Does the error continue?
Contact the next
level of support.
Problem solved.
6
If the problem continues, replace the original panel
assembly with a new and not previously installed operator
panel door assembly.
Go to “Operator panel door assembly removal (T650,
T652, T654)” on page 4-44.
Contact the next
level of support.
Problem solved.