LG GR-K192UF Service Manual page 20

MICOM function and circuit description
5-2-9. Storing temperature compensation and over-cool/under-cool cut compensation circuit
(1) Storing temperature compensation
u This is the circuit to input the temperature compensation level required for adjusting storage temperature at the left or
right compartment.
u Temperature compensation table by adjustment of resistance value (difference against current temperature)
Ex) If you change the resistance of compensation at the left compartment (RCL) from 10KΩ (current resistance) to 18KΩ
(adjusted resistance), the storage temperature in the left compartment will be increased by 1°C.
Modified
resistance 470 Ω
Classification
Current
resistance
470KΩ No change
Left
2 KΩ 0.5°C DOWN No change
compartment
3.3 KΩ 1°C DOWN 0.5°C DOWN No change
(RCL)
5.6 KΩ 1.5°C DOWN 1°C DOWN 0.5°C DOWN No change 0.5°C UP
8.2 KΩ 2°C DOWN 1.5°C DOWN 1°C DOWN 0.5°C DOWN No change
ƒU
10 KΩ 2.5°C DOWN 2°C DOWN 1.5°C DOWN 1°C DOWN 0.5°C DOWN No change
12 KΩ 3°C DOWN 2.5°C DOWN 2°C DOWN 1.5°C DOWN 1°C DOWN 0.5°C DOWN No change 0.5°C UP
Right
18 KΩ 3.5°C DOWN 3°C DOWN 2.5°C DOWN 2°C DOWN 1.5°C DOWN 1°C DOWN 0.5°C DOWN No change
compartment
(RCR)
33 KΩ 4°C DOWN 3.5°C DOWN 3°C DOWN 2.5°C DOWN 2°C DOWN 1.5°C DOWN 1°C DOWN 0.5°C DOWN No change
56 KΩ 4.5°C DOWN 4°C DOWN 3.5°C DOWN 3°C DOWN 2.5°C DOWN 2°C DOWN 1.5°C DOWN 1°C DOWN 0.5°C DOWN No change
180 KΩ 5°C DOWN 4.5°C DOWN 4°C DOWN 3.5°C DOWN 3°C DOWN 2.5°C DOWN 2°C DOWN 1.5°C DOWN 1°C DOWN 0.5°C DOWN No change
Left compartment Right compartment
(RCL) (RCR)
180 KΩ
56 KΩ
33 KΩ
18 KΩ
12 KΩ
10 KΩ
8.2 KΩ
5.6 KΩ
3.3 KΩ
2 KΩ
470 Ω
2 KΩ 3.3 KΩ 5.6 KΩ
0.5°C UP 1°C UP 1.5°C UP
0.5°C UP 1°C UP
0.5°C UP
Temperature
compensation value
+2.5 ˚C
+2.0 ˚C
+1.5 ˚C
+1.0 ˚C
+0.5 ˚C
0 ˚C
-0.5 ˚C
-1.0 ˚C
-1.5 ˚C
-2.0 ˚C
-2.5 ˚C
8.2 KΩ 10 KΩ 12 KΩ
2°C UP 2.5°C UP 3°C UP
1.5°C UP 2°C UP 2.5°C UP
1°C UP 1.5°C UP 2°C UP
1°C UP 1.5°C UP
0.5°C UP 1°C UP
0.5°C UP
- 20 -
Remarks
Warmer
Standard temperature
Cooler
18 KΩ 33 KΩ 56 KΩ
3.5°C UP 4°C UP 4.5°C UP
3°C UP 3.5°C UP 4°C UP
2.5°C UP 3°C UP 3.5°C UP
2°C UP 2.5°C UP 3°C UP
1.5°C UP 2°C UP 2.5°C UP
1°C UP 1.5°C UP 2°C UP
1°C UP 1.5°C UP
0.5°C UP 1°C UP
0.5°C UP
180 KΩ
5°C UP
4.5°C UP
4°C UP
3.5°C UP
3°C UP
2.5°C UP
2°C UP
1.5°C UP
1°C UP
0.5°C UP