Samsung forum

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My Samsung PN50B850 turns off by itself then on again

by feeds / April 26, 2010 10:59 AM PDT

Help! This is unbelievable. I just bought this Samsung 50 inch plasma no more than 5 months ago and after about 25-30 mins of TV watching, my TV suddenly turns itself off, makes about 3 or 4 rapid "clicking" sounds (like on/off very quickly) and then turns itself on again. Once it's done it the first time, it then does it every 2 to 3 mins, non stop! The only thing I can do is shut the TV for about 15 mins before it starts doing it again after 25 mins. It seems to especially happen when I watch sports.

Can someone please help? Your help would be greatly appreciated. thank you.

thank you

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See my post in reply to Jasoo about jammed buttons
by lanman4 / April 26, 2010 10:23 PM PDT

I posted a response to this issue today in reponse to Jasoo who posted about the soft touch buttons jamming. I had same issue.
Its likely the circuit board behind behind the invisible buttons.
When it happens try tapping gently on the area behind the bezel where those buttons are and if it generates similar symptoms of turning tv on and off then you can be sure your problem is the same as the one I had.

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Not sure...
by feeds / April 27, 2010 7:28 AM PDT

Thanks for your reply, but I have doubts that it's the same thing. The tv only turns off and on, nothing else, and it always starts happening after it has been on for about 25 mins, as if it was heating up or something.

By the way, do you know how to get in touch with the Samsung tech guy? I'd sure like his opinion on this.

thanks again

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Not sure...
by Samsung_HD_Tech Samsung staff / April 30, 2010 2:18 PM PDT
In reply to: Not sure...


I wish I had a better answer, but I think my first hypothesis would also have been the touch buttons.

However, the unit is likely still in warranty. If you call 800-SAMSUNG, a tech would be able to inspect your unit and likely figure out the problem. If you haven't yet, try calling 800-SAMSUNG to see if you can get scheduled for a service.


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Power supply
by jeanne64nc / February 11, 2011 11:05 PM PST

Try buying a new power cord. Mine went completely out after doing this (powering off & on after warming up). I bought a new power cord at Radioshak and it works perfectly.

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