Troubleshooting
Samsung Electronics
4-5
4-1-3 Faults and Corrective Actions
Symptom
Related Image
Causes and Countermeasures
A blank vertical cell (block) appears
on the screen.
Address buffer defect
- Replace the corresponding upper/
lower buffers (E, F or G)
COF defect (burnt)
- Replace the module
A green screen appears when the
TV is turned on.
The Scale is not reseting
- Replace the Main board
The OSD box appears but there is
no text.
Incorrect program version
- Check the version of each
program
- Replace the Main board
A blank upper (or lower) block
appears on the screen.
Upper/Lower Y Buffer defect
- Replace the corresponding upper/
lower buffers
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