LG LRSPC2051AB Service Manual page 37

EXPLANATION FOR MICOM CIRCUIT
2) GR-C247, B247, C207, B207
The above circuits are circuits attached to freezer sensor or refrigerator sensor for adjusting setting temperature at the
freezer and refrigerator, icemaking sensor for sensing water temperature in icemaking, or an evaporator for sensing
temperature of a frost removal sensor necessary for frost removal. Short or open status of every temperature sensor is as
follows:
SENSOR
Freezing sensor
Frost removal sensor
Cold storage sensor 1
Cold storage sensor 2
Room temperature sensor
A
B
C
D
E
CHECK POINT
POINT A Voltage
POINT B Voltage
POINT C Voltage
POINT D Voltage
POINT E Voltage
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NORMAL(-30 °C ~ 50 °C)
0.5 V~4.5 V
(Sensor for freezing room)
(Sensor for frost removal)
(Sensor for cold storage room)
(Sensor for cold storage room)
IN SHORT IN OPEN
0 V 5 V