R: Antenna Sensor Test; S: Microwave Sensor Test - Sharp R-CD1200M Service Manual

RCD1200M
1) If it is open, the relay unit is defective.
6. Check the open and /or short of the transformer primary coil on the relay unit.
1) If it is open and /or short, it is defective.
7. Check the state of the relays contacts RY-1, RY-2 and RY-3 using an ohmmeter.
1) The relay contacts should be open. If not so, the relay unit is defective.

[18] R: ANTENNA SENSOR TEST

There is no test procedure for the antenna sensor.
When the error history display shows EE15, EE25 or EE35, if the antenna motors, control unit and wiring are normal, the antenna sensor may be
defective.

[19] S: MICROWAVE SENSOR TEST

There is no test procedure for the microwave sensor.
When the error history display shows EE18, EE28 or EE38, if the magnetrons, control unit and wiring are normal, the microwave sensor may be
defective.
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