LG LRSC26980TT Service Manual - Page 45

Sensor resistance characteristics table, Measuring Temperature, Freezing Sensor, Cold storage sensor

Get LG LRSC26980TT PDF manuals and user guides View all LG LRSC26980TT manuals
Add to My Manuals
Save this manual to your list of manuals

Page 45 highlights

EXPLANATION FOR MICOM CIRCUIT Sensor resistance characteristics table Measuring Temperature (°C) -20 °C (-4 °F) -15 °C (5 °F) -10 °C (14 °F) -5 °C (23 °F) 0 °C (32 °F) +5 °C (41 °F) +10 °C (50 °F) +15 °C (59 °F) +20 °C (68 °F) +25 °C (77 °F) +30 °C (86 °F) +40 °C (104 °F) +50 °C (122 °F) Freezing Sensor 22.3 kΩ 16.9 kΩ 13.0 kΩ 10.1 kΩ 7.8 kΩ 6.2 kΩ 4.9 kΩ 3.9 kΩ 3.1 kΩ 2.5 kΩ 2.0 kΩ 1.4 kΩ 0.8 kΩ Cold storage sensor 1&2 Frost removal sensor, Outside sensor 77 kΩ 60 kΩ 47.3 kΩ 38.4 kΩ 30 kΩ 24.1 kΩ 19.5 kΩ 15.9 kΩ 13 kΩ 11 kΩ 8.9 kΩ 6.2 kΩ 4.3 kΩ u Resistance value allowance of sensor is ±5%. u When measuring the resistance value of the sensor, allow the temperature of that sensor to stabilize for at least 3 minutes before measuring. This delay is necessary because of the sense speed relationship. u Use a digital tester to measure the resistance. An analog tester has too great a margin of error. u Resistance of the cold storage sensor 1 and 2 should be measured with a digital tester after separating CON8 of the PWB ASSEMBLY and the MAIN part. u Resistance of the freezing sensor shall be measured with a digital tester after separating CON7 of the PWB ASSEMBLY and the MAIN part. - 45 -

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
Sensor resistance characteristics table
u
Resistance value allowance of sensor is ±5%.
u
When measuring the resistance value of the sensor, allow the temperature of that sensor to stabilize for at least 3 minutes
before measuring. This delay is necessary because of the sense speed relationship.
u
Use a digital tester to measure the resistance. An analog tester has too great a margin of error.
u
Resistance of the cold storage sensor 1 and 2 should be measured with a digital tester after separating CON8 of the
PWB ASSEMBLY and the MAIN part.
u
Resistance of the freezing sensor shall be measured with a digital tester after separating CON7 of the PWB ASSEMBLY
and the MAIN part.
EXPLANATION FOR MICOM CIRCUIT
- 45 -
Measuring Temperature (
°
C)
Freezing Sensor
Cold storage sensor 1&2
Frost removal sensor, Outside sensor
-20
°
C (-4
°
F)
22.3 k
Ω
77 k
Ω
-15
°
C (5
°
F)
16.9 k
Ω
60 k
Ω
-10
°
C (14
°
F)
13.0 k
Ω
47.3 k
Ω
-5
°
C (23
°
F)
10.1 k
Ω
38.4 k
Ω
0
°
C (32
°
F)
7.8 k
Ω
30 k
Ω
+5
°
C (41
°
F)
6.2 k
Ω
24.1 k
Ω
+10
°
C (50
°
F)
4.9 k
Ω
19.5 k
Ω
+15
°
C (59
°
F)
3.9 k
Ω
15.9 k
Ω
+20
°
C (68
°
F)
3.1 k
Ω
13 k
Ω
+25
°
C (77
°
F)
2.5 k
Ω
11 k
Ω
+30
°
C (86
°
F)
2.0 k
Ω
8.9 k
Ω
+40
°
C (104
°
F)
1.4 k
Ω
6.2 k
Ω
+50
°
C (122
°
F)
0.8 k
Ω
4.3 k
Ω