Daewoo FRS-U20FA Series - Relay Function

37
1. Circuit Diagram
#14≒12V
#12≒12V
#10≒12V
#14≒0.7V
#12≒0.7V
#10≒0.7V
IC7#3≒0V#3≒5.0VRelay 3Louver Heater
OFF ConditionON Condition
#5≒0V#5≒5.0VRelay 5D-Heater
Relay 1
Control Mode
Method
IC7
IC ULN2004
Output pin
#1≒5.0V
MICOM Port
#1≒0V
MICOM Port
Comp
IC ULN2004
Output pin
Control
CONTENTS
REMARKS
5-3. Relay Function
■. FRS(N)-U20IA
2. How it works;
IC1
(MICOM)
Comp
D-Heater
Louver Heater
D-Heater
Louver Heater
Comp
R-Lamp
F-Lamp