LG LSC 26945SW, Service Manual

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1-5. Temperature sensing circuit
(1) LSC26945TT/ LSC26945SW
The circuits involving the freezer and refrigerator sensors controls the temperature in both the freezer and the refrigerator.
The Icemaker sensor detects when ice is made. The defrost sensor determines both the need for defrosting and the
efficiency of the defrost operation. See the table below for voltages and checkpoints.
EXPLANATION FOR MICOM CIRCUIT
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E
F
B
A
D
G
C
SENSOR CHECK POINT NORMAL(-30 °C ~ 50 °C) IN SHORT IN OPEN
Freezing sensor POINT A Voltage
Defrost sensor POINT B Voltage
Refrigerator sensor 1 POINT C Voltage
Refrigerator sensor 2 POINT D Voltage 0.5 V~4.5 V 0 V 5 V
Room temperature sensor POINT E Voltage
Water tank sensor POINT F Voltage
Optichill sensor POINT G Voltage