Panasonic EP1273-U1 Service Manual page 20

7. Unscrew three screws and remove the Up/down sensor block.
Unscrew one screw from the Up/down sensor block and remove
the Up/down sensor.
8. Unscrew two screws from the Connection PCB (A) and remove
the Connection PCB.
Unscrew two screws from the Connection PCB board (B) and
remove the Connection PCB board.
20