LG GR-B197WV Service Manual page 36

MICOM CIRCUIT DESCRIPTION
1-5. Temperature Detecting Circuit, Duct Door Heat Working Circuit
The above circuit is fixed in the freezer compartment sensor, refrigerator compartment sensor, ice making sensor, and
defrost sensor. The condition of short or open of each temperature sensor is as follows.
SENSOR
OPEN AIR SENSOR
FREEZER SENSOR
DEFROST SENSOR
REFRIGERATOR SENSOR 1
REFRIGERATOR SENSOR 2
ICE MAKER SENSOR
* 12 Vdc shall be applied to No. 10 and 11 terminals of CON6 as duct door heater is always on.
CHECK POINT
POINT A Voltage
POINT B Voltage
POINT C Voltage
POINT E Voltage
POINT F Voltage
POINT G Voltage
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NORMAL(-30 °C ~ 50 °C)
0.5 V~4.5 V
SHORT OPEN
0 V 5 V