Samsung SR-L677EV Service Manual

Also see for SR-L627EV: Owner's instructions

Contents

1) If door is open, door S/W contact is closed. Then MICOM receives “low” signal and detectsdoor open then, Relay control circuit receives “HIGH” signal and turn Lamp on.2) If door is closed, door S/W contact is open. Then MICOM receives “high” signal and detectsdoor close then, Relay control circuit receives “LOW” signal and turn Lamp off.DOORFRDoor ConditionsCLOSEOPENCLOSEOPENDoor S/W ContactOPENCLOSEOPENCLOSEMICOMPIN NO# 39# 40Micom Input Voltage“HIGH”“LOW”“HIGH”“LOW”6-5. Temperature Sensor1) The sensor uses the characteristics of thermistor. If temperature goes higher, resistance goeslower. On the contrary, if temperature goes lower, resistance goes higher.2) MICOM input voltage is counted by sensor as follows.(VCC : 5V, R TH : Sensor reisitance)3) For the resistance information on temperature and MICOM input voltage, please refer theconversion table. (Page. 41)RTHVF = X VccRTH + R301When Sensor is openMICOM input “HIGH”When sensor is cut offMICOM input “LOW”( Air Sensor)21