LG LRSC26980TT Service Manual - Page 41

Temperature compensation circuit

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EXPLANATION FOR MICOM CIRCUIT 1-12. Temperature compensation circuit LRSC269**** R16 R17 Temperature compensation at refrigerator Temperature compensation at freezer Freezer Resistance value (RCF1) Temperature compensation 180 kΩ +5 °C [+9°F] 56 kΩ +4 °C [+7.2°F] 33 kΩ +3 °C [+5.4°F] 18 kΩ +2 °C [+3.6°F] 12 kΩ +1 °C [+1.8°F] 10 kΩ 0 °C [0°F] 8.2 kΩ -1 °C [-1.8°F] 5.6 kΩ -2 °C [-3.6°F] 3.3 kΩ -3 °C [-5.4°F] 2 kΩ -4 °C [-7.2°F] 470 Ω -5 °C [-9°F] Refrigerator Resistance value (RCR1) Temperature compensation 180 kΩ +2.5 °C [+4.5°F] 56 kΩ +2.0 °C [+3.6°F] 33 kΩ +1.5 °C [+2.7°F] 18 kΩ +1.0 °C [+1.8°F] 12 kΩ +0.5 °C [+0.9°F] 10 kΩ 0 °C [0°F] 8.2 kΩ -0.5 °C [-0.9°F] 5.6 kΩ -1.0 °C [-1.8°F] 3.3 kΩ -1.5 °C [-2.7°F] 2 kΩ -2.0 °C [-3.6°F] 470 Ω -2.5 °C [-4.5°F] Remarks Warmer Reference temperature Cooler u Temperature compensation table by adjustment value (difference value against current temperature) Ex) If you change compensation resistance of (RCR1) from 10 kΩ (current resistance) to 18 kΩ (modified resistance), the temperature will increase by +1°C[+1.8°F]. - 41 -

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1-12. Temperature compensation circuit
LRSC269
****
u
Temperature compensation table by adjustment value (difference value against current temperature)
Ex) If you change compensation resistance of (RCR1) from 10 k
Ω
(current resistance) to 18 k
Ω
(modified resistance), the
temperature will increase by +1
°
C[+1.8
°
F].
EXPLANATION FOR MICOM CIRCUIT
- 41 -
Temperature compensation at refrigerator
Temperature compensation at freezer
R16
R17
Freezer
Refrigerator
Resistance value
Temperature
Resistance value
Temperature
Remarks
(RCF1)
compensation
(RCR1)
compensation
180 k
Ω
+5
°
C [+9
°
F]
180 k
Ω
+2.5
°
C [+4.5
°
F]
Warmer
56 k
Ω
+4
°
C [+7.2
°
F]
56 k
Ω
+2.0
°
C [+3.6
°
F]
33 k
Ω
+3
°
C [+5.4
°
F]
33 k
Ω
+1.5
°
C [+2.7
°
F]
18 k
Ω
+2
°
C [+3.6
°
F]
18 k
Ω
+1.0
°
C [+1.8
°
F]
12 k
Ω
+1
°
C [+1.8
°
F]
12 k
Ω
+0.5
°
C [+0.9
°
F]
10 k
Ω
0
°
C [0
°
F]
10 k
Ω
0
°
C [0
°
F]
Reference temperature
8.2 k
Ω
-1
°
C [-1.8
°
F]
8.2 k
Ω
-0.5
°
C [-0.9
°
F]
5.6 k
Ω
-2
°
C [-3.6
°
F]
5.6 k
Ω
-1.0
°
C [-1.8
°
F]
3.3 k
Ω
-3
°
C [-5.4
°
F]
3.3 k
Ω
-1.5
°
C [-2.7
°
F]
2 k
Ω
-4
°
C [-7.2
°
F]
2 k
Ω
-2.0
°
C [-3.6
°
F]
470
Ω
-5
°
C [-9
°
F]
470
Ω
-2.5
°
C [-4.5
°
F]
Cooler