Question about Televison & Video
Your TV specs as a flat screen and not a projection TV. So this diagnosis is for that of a flat screen CRT. It appears that your filament voltage might be low or the CRT cathodes have excessive oxidation on them. These are the two primary reasons for this type of failure. The secondary reasons would be low video signal, problems with the screen, focus, or control grids, or low anode voltage (which would also cause picture shrinkage). I would suggest that you take the TV to a qualified TV repair shop to have the work done.
Have them run a diagnostic on the CRT with a CRT analyzer and check the CRT voltages with the TV connected to a video analyzer set at the normal configuration for a color picture.
I hope this helps
Posted on May 26, 2008
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Posted on Jan 02, 2017
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