A SERVICE OF

logo

1-6. Door opening sensing circuit
(1) GR-P227/L227/P257/L257
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.
EXPLATION FOR MICOM CIRCUIT
- 30 -
Closing 5 V ( A - B , C - D . Switch at both ends are at Off status)
Opening 0 V ( A - B , C - D . Switch at both ends are at On status)
Measuring part
IC1 (MICOM) No. (44, 45) / (45, 46) / (47, 48) Pin
Door of Freezer and Refrigerator