LG/ZENITH PLASMA p42w46x.....I've had it for about 3 years, turned it off one night and it was working fine. The next night I had sound but, just moving colored "snow" and no picture. Also my hd converter box was not working and had to be replaced but, didn't fix the picture problem. There was no electrical storm or anything that I know of that could have caused lightning damage. I'm a computer repair tech. and could probably replace the part if I knew what part to order...any ideas on the cause of this?
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