Samsung PPM63M7FS - Page 24

Troubleshooting
Samsung Electronics 4-3
■ Whentheunitisrepeatedlyturningonandoff
Symptom - The SMPS relay is repeatedly turning on and off.
Major
Checklist

connected to the SMPS.
 
each voltage output is correct.
 
 
connecting the cables one by one.
Troubleshooting
Procedures
①
②
③
Does the symptom continue when
connecting the power after removing CN810
from the SMPS?
①
Does the symptom continue when
connecting the power after removing CN809
from the SMPS?
Replace the Main SMPS

No

Replace the

Replace the

Replace the
Logic Board
②
Does the symptom continue when
connecting the power after removing CN807
from the SMPS?

③
No
No
Caution



DISCONNECTING THE POWER CORD FROM THE UNIT.