5) TEMP SENSOR CIRCUITS
The above circuit reads the surrounding temperature, DEFROSTING temperature, and FREEZER ROOM temperature into
MICOM (IC1). OPEN or SHORT state of each SENSOR is as follows.
6) SWITCH INPUT CIRCUIT
The following circuit is a test switch input circuit for checking the refrigerator.
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(RT– SENSOR)
(DEFROST SENSOR)
(FREEZER COMPARTMENT
SENSOR)
SENSOR
CHECK POINT
NORMAL (-30 °C~50 °C)
SHORT
OPEN
ROOM TEMPERATURE
SENSOR
POINT A Voltage
DEFROST SENSOR
POINT B Voltage
0.5 V ~ 4.5 V
0 V
5 V
FREEZER SENSOR
POINT C Voltage
