LG GR-B197DVCA Service Manual page 44

EXPLATION FOR MICOM CIRCUIT
1-10. Temperature compensation and over-cool/weak-cool compensation circuit
1. Temperature compensation at freezing room, cold storage room
1) GR-L207, GR-L247
2) GR-B197, GR-B207, GR-B247
Freezing room
Resistance value
(RCF1)
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
u Temperature compensation table by adjustment value (difference value against current temperature)
Ex) If changing compensation resistance at a cold storage room (RCR1) from 10 kΩ (current resistance) to 18 kΩ
(modified resistance), temperature at the cold storage will increase by +1°C.
Temperature Resistance value
compensation
+5 °C
+4 °C
+3 °C
+2 °C
+1 °C
0 °C
-1 °C
-2 °C
-3 °C
-4 °C
-5 °C
Cold storage room
Temperature
(RCR1) compensation
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
- 44 -
Remarks
+2.5 °C Warmly
+2.0 °C compensate
+1.5 °C
+1.0 °C
+0.5 °C
0 °C Reference temperature
-0.5 °C
-1.0 °C
-1.5 °C
-2.0 °C Coolly
-2.5 °C compensate