Question about Samsung HP-R4252 42 in. Plasma HDTV

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Samsung Plasma lines

I am a technician but have not done much work on Plasma's. I have one I started on today and any help would be appriciated.
It has one single horizontal white line on the picture about 1/3 of the way down from the top and then any changes in brightness level will give a vertical shadow (for lack of a better description). And all of this being digital the shadow is not solid but made up of (random) pixels.
I checked all the voltages and they are very close to the spec's stamped on the display. The problem happened all of a sudden, no symptoms leading up to it.
Any ideas?
Thanks

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  • 261 Answers

Panel could be bad or possibly a cold solder joint on driver ic. Or board that ic is on is bad. Good luck. Jay

Posted on Mar 22, 2008

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