Daewoo FRS-U20DD. Service Manual page 28

5-2. Function of Each Sensor
[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 J1 on the M-PCB, then temp. is lowered 1.5C than [Mid OFF point]
2) Cut J1 and J2 on the M-PCB, then the temp, is lowered 3C
CONTENTS
Compensation of
R-sensor ON/OFF temp.
Low ON
-11C
9.32 k ohm 15.19 k ohm
3.24V
Low ON
7.7C
23.33 k ohm 24.05 k ohm
2.96V
Return point of defrosting heater
28
Mid OFF
-16C
15.58 k ohm
2.93V
Mid OFF
5.2C
24.76 k ohm
2.83V
13C
22.56 k ohm
3.08V
REMARKS
IC1
(MICOM)
B
C
A
D
High OFF
-19C
2.73V
High OFF
3.2C
2.72V