Repair information 4-147
7500-432, -632, and -832
Operator panel controller card removal
1. Remove the operator panel assembly. See “Operator panel assembly removal” on page 4-135.
2. Remove the operator panel cover assembly. See “Operator panel cover assembly removal” on
page 4-140.
3. Disconnect all the connectors from the operator panel controller card (A).
4. Remove the four screws securing the operator panel controller card (A) to the top cover.
5. Remove the operator panel controller card (A).
Note: Before reinstalling the operator panel controller card (A), ensure that all connections are properly
replaced.
Note: Before reinstalling the operator panel assembly, ensure that all ground wires are properly replaced.