Daewoo FRU-5711-FRS-U20DA Series Service Manual page 37

FRS(N)-U20DA/EA/FA/GA
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[F-sensor (A)]
1) It senses the temperature of freezer compartment and control Comp., F-fan ON/OFF
2) How it works;
Working Point
Working Temp.
Resistance
Sensing Voltage
[R-sensor (B)]
1) It senses the temperature of refrigerator compartment and control R-fan ON/OFF
2) How it works;
Working Point
Working Temp.
Resistance
Sensing Voltage
[D-sensor (C)]
1) It senses return point of defrosting heater.
2) How it works;
Working Point
Working Temp.
Resistance
Sensing Voltage
* In case temperature of refrigerator compartment is weak or insufficient,
though comp. and R-fan operate in normal way;
1) Cut J18 on the M-PCB, then temp. is lowered 1.5℃ than [Mid OFF point]
2) Cut J18 and J19 on the M-PCB, then the temp, is lowered 3 ℃
CONTENTS
Compensation of
R-sensor ON/OFF temp.
Low ON
-11℃
≒9.32㏀
≒3.24V
Low ON
7.7℃
≒23.33㏀
≒2.96V
Return point of defrosting heater
36
Mid OFF
-16℃
≒15.19㏀
≒2.93V
Mid OFF
5.2℃
≒24.05㏀
≒2.83V
13℃
≒22.56㏀
≒3.08V
REMARKS
IC1
(MICOM)
B
C
A
D
High OFF
-19℃
≒15.58㏀
≒2.73V
High OFF
3.2℃
≒24.76㏀
≒2.72V