Samsung PPM63M7FS Service Manual page 31

Troubleshooting
4-1-3 Faults and Corrective Actions
Symptom
A blank vertical cell (block)
appears on the screen.
A green screen appears when
the TV is turned on.
The OSD box appears but
there is no text.
A blank upper (or lower) block
appears on the screen.
4-10
Related Image Causes and Countermeasures
Address buffer defect
- replace the corresponding upper/lower
buffers (e, f or g)
CoF defect (burnt)
- Replace the module
The Scale is not reseting
- Replace the Main board
Incorrect program version
- Check the version of each program
- Replace the Main board
upper/lower Y Buffer defect
- replace the corresponding upper/lower
buffers
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