LG SxS GR-P247 Service Manual page 49

EXPLATION FOR MICOM CIRCUIT
2) GR-C247, B247, C207, B207
FRZ TEMP
REF TEMP
2. Sensor resistance characteristics table
Measuring Temperature (°C)
-20 °C
-15 °C
-15 °C
-5 °C
0 °C
+5 °C
+10 °C
+15 °C
+20 °C
+25 °C
+30 °C
+40 °C
+50 °C
u Resistance value allowance of sensor is ±5%.
u In measuring resistance value allowance of sensor, perform measuring after leaving the sensor for more than 3 minutes
at the measuring temperature (delay is required due to sense speed relation relationship).
u Since an analog tester has a large measuring temperature, measuring with a digital tester is required as possible as.
u Resistance of the cold storage sensor 1 and 2 shall be measured with a digital tester after separating CON8 of the PWB
ASSY and the MAIN part.
u Resistance of the freezing sensor shall be measured with a digital tester after separating CON7 of the PWB ASSY and
the MAIN part.
Reception
Transmission
MIN
TEMP
MIN
TEMP
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
MAX
ROOM
TEMP
MAX
OFF
Cold storage sensor 1, 2.
Frost removal sensor, Outside sensor
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Transmission
Reception
LOCK
SUPER FRZ
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