LG LSC27990TT Service Manual page 26

EXPLANATION FOR MICOM CIRCUIT
1-6. Door opening sensing circuit
(1) GR-G277STSA(LSC27990TT)
ICI
(MICOM)
40 C6_
CCZI*
F-_ _Jw
R_030R S/_
....... Measuring part
................ ............ ICl (MICOM) No. (44, 45) / (45, 46) / (47, 48) Pin
Door of Freezer and Refrigerator
Closing 5 V ((_)- (_, (_- @. Switch at both ends are at Off status)
Opening 0 V ((_) - (_, (_)- (_). Switch at both ends are at On status)
Since door switches (A) and (B) are interconnected, if either fails, the other will not respond properly.
If either switch fails, the light will not come on.
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