Samsung DW80M9 Series Service Manual page 52

Check type Check code
Thermistor
tC
check
Main-Sub PBA
Communication AC
check
50 _ Troubleshooting
Checking method
1. Check the connections for the Thermistor connector
2. Check whether the Thermistor is operating normally.
- Measure the voltage between both ends of the Thermistor.
► Normal: 0.05 to 4.95V
- Measure the resistance between both ends of the Thermistor.
: Remove the connector before measuring. (See the Table right.)
Thermistor table
Temp(℃)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
1. Check the connections between MAIN PBA CN802 connector and
Display Control Module CN101 connector.
2. That check code is produced continuously after method 1 confirmation.
3. That check code is produced continuously after method 2 confirmation.
4. That check code is produced continuously after method 2 confirmation.
- Reconnect the Thermistor connector.
- Faulty: Replace the Thermistor.
- Normal: Replace the Main PBA Assy.
Resistance(kΩ)
125.814
98.36
77.48
61.477
49.12
39.51
31.985
26.053
21.347
17.59
14.573
12.136
10.157
8.541
- Reconnect the MAIN PBA CN802 connector and SUB PBA CN101
connector.
- Replace: Sub-Wire
- Replace: Sub-PBA
- Replace: Main-PBA
Corrective actions