Question about NEC PlasmaSync PX-50XM2A 50 in. Television

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The plasma turn on OK(green light), after 2-3 minutes, the power is reset auto(red light to green), off to on, and turn on again. That happen 3-4 times and after that the plasma turn off and the red light keep present.

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Could be a faulty power supply board. check for dry-joints

Posted on Mar 13, 2010

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On power up the led flashes 6 times and then turns red, tv will not turn on for 30 minutes or so then it works again for maybe 2 -3 hours then it happens again


Your power board is defective. diy price about 50 to 100.00. Check on Ebay with your model # for power board. Board has about 4 screws and 3 to 4 plugin.

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Most likely the power supply capacitors are going bad.
Opening the TV and replacing any swollen caps may solve your issue.
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Roety

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Ok I have a Samsung SPK4215 42 in. Plasma TV, what happening is when I turn it on it won't come on, just green light come for 3 second and turn to flashing red light, then i use the Remote control, to turn...


The most common issue with these are the power supplies that were made with bad capacitors. All makes and most models are effected by this. Here is something to read on this issue.
http://www.ccl-la.com/blog/index.php/capacitors/

They can be fixed or replaced, but if you don't replace all the capacitors with a newer better type you will be repairing this again.

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Hello,

Your power supply board is dead, u know basic electronics’ and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
hope this helps...

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problem on power supply , u may have 2 bAD capacitor

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1 Answer

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Check the power board for capacitors with the tops bulged up. They are 3300uf 10v. There are either 2 or 4 of them depending on your set.

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it sounds like you could have a signal board problem they are pretty expensive but there is a web site that sells refurbed parts

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Hi to all, My 42" Panasonic plasma have the same problem. It turned itself off and now red light flashes 7 times, than after short pause 7 times again. And so on. Any ideas what is wrong??

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