5-9
Samsung Electronics
5-4 Fault Diagnosis of Major Parts
Parts
Temp.Sensor
Heat ex. Sensor
Indoor Fan Motor
Outdoor Fan Motor
Stepping Motor
(UP/DOWN swing motor)
Diagnosis
Measure resistance with a tester.
Normal
8
K
Ω
~27
K
Ω
at ambient temperature (+0°C ~ +30°C)
Abnormal
∞
, O
Ω
… open or short
Measure resistance between terminals (CN73) with a tester
Normal
At ambient temperature (10°C ~ 30°C)
Abnormal
Measure the voltage between ground and signal wire of the fan motor
Normal
Abnormal
Abnormal if voltage does not change from 0V to 5V.
Normal
At ambient temperature (10°C ~ 30°C)
Abnormal
∞
, O
Ω
… open or short
Measure resistance between red wire and each terminal.
Normal
Approx. 380
Ω
at ambient temperature (20°C ~30°C)
Abnormal
∞
, O
Ω
… open or short
Between
Resistance
Red, Yellow
190±10
Ω
Red, Blue
165±15
Ω
Between
Voltage
Gray, Orange
0.5V~4.5V
Yellow, Orange
5V
Between
Resistance
Black, Yellow
189±10
Ω
Black, Red
190±10
Ω
Содержание AM18A1(B1)E09
Страница 2: ...Samsung Electronics Co Ltd DEC 1998 Printed in Korea Code No DB81 10176A 2...
Страница 4: ...1 2 Samsung Electronics MEMO...
Страница 8: ...2 4 Samsung Electronics MEMO...
Страница 24: ...3 16 Samsung Electronics MEMO...
Страница 38: ...Samsung Electronics 6 1 6 Exploded Views and Parts List 6 1 Indoor Unit...
Страница 40: ...Samsung Electronics 6 3 6 2 Outdoor Unit 11 10 2 10 3 10 5 10 4 10 1 10...
Страница 44: ...6 7 Samsung Electronics MEMO...
Страница 46: ...Samsung Electronics 8 1 8 PCB Diagrams 8 1 Main PCB...
Страница 52: ...Samsung Electronics 10 1 10 Schematic Diagrams 10 1 Indoor Unit BLK L SKY BLUE BROWN BLACK PNA4612M XD 220 1 8W...
Страница 53: ...10 2 Remote Control Samsung Electronics 10 2...