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(4) Remove the four screws that secure the AIS processing circuit, and replace it.
(Phillips screwdriver for 3 mm screws)
[Mounting]
(1) Confirm that the DIP switch and short plug settings are the same between the old and new AIS
processing circuits.
(2) Connect the connector-attached cables to the new AIS processing circuit.
(3) Assemble the unit in reverse order of removal.
[Operation check]
(1) Check that the equipment starts normally.
(2) Check that an error message is not displayed.