Daewoo DWB-180RH-R, Руководство по обслуживанию

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3. Sensor Signal Input Circuit and Option
Port 4 of IC4 is terminal of A/D converter input.
Room temperature is sensing by change of temperature resistance.
The input voltage is determined by ratio between R8 (10.0 K
Ω
) and Room sensor value.
Relation between temperature and input voltage is as following.
Port 10 of IC1 is a type of temperature display option port.
It is determined by ratio between R11 and R12.
Relation between R1 and Display temperature type is as following.
Temperature (°C)
-5
0
5
10
15
20
25
30
35
Sensor resistance (K
Ω
)
43.67
33.40
25.79
20.10
15.80
12.52
10.00
8.05
6.52
Input Voltage (V)
0.932
1.152
1.397
1.661
1.938
2.220
2.500
2.770
3.027
R11(K
Ω
)
SHORT
2.32
Input Voltage(V)
0V
0.95V
Temperature display type
Centigrade (°C)
Fahrenheit (°F)