Daewoo DSA-101L Service manual - Sensor(3)

33

Room temperature and Evaporator temperature Sensor Input

DESCRIPTION

Number 24, 25 of Micom is Terminal of A/D convertor Input.

Room temperature and Evaporator temperature is sensing by change of Thermister Resistance, Micom is put

in 5V by ratio between R10 (12.7K

Ω

) and R11 (12.7K

Ω

).

Relation between temperature and voltage is following Table 3-1.

CC5, 6 is Noise filter.

Temperature

(°C)

No. 1

No. 3

-5

1.127

1.127

0 1.378

1.378

5 1.650

1.650

10 1.936

1.936

15

2.228

2.228

Voltage (V)

Table 3-1

Sensor(3)

Room

PT-K43C

EVA

PT-K43C

5267-04A

CN10

5V

1

2

3

4

R10

12.7K

330

CC6

103

R6

330

R7

R11

12.7K

CC5

10

24

25

MICOM