Panasonic SD-ZB2502BXC Service Manual page 34

4. Remove three screws which fix a base for P.C.B. to the
main body, and exclude a base for P.C.B..
5. Remove one screw.
Remove a flat cable.
Remove a control board B from a base for P.C.B.
6. Open a claw and exclude P.C.Board A assy from a base
for P.C.B..
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