WayneDean,
I would definitely call 800-SAMSUNG to get your unit serviced. It could be either the mainboard, or likely the power supply - without looking at it, it's difficult to properly diagnose based on one symptom. Hope that helps, and keep me posted.
--HDTech
I bought my 50" Samsung PNA50A530 Plasma about five months ago and I am having a problem with it. While watching TV it turns off for a split second and right back on.
It can go for a week with no problem but last night it was doing it every five minutes and driving me crazy. Sometimes when you turn it on the TV will turn itself off and on over and over again until you turn it off and wait a few minutes.
I Googled this and found this seems to be an issue with Samsung. Anyone else have this problem?

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