Question about Protron PLTV3250 32 in. LCD Television

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Made a "poof' sound now it's dead!

The tv is maybe 1 year old at most. As I was watching there was a poof sound and the tv went dead. Tv is totally dead, no reaction when try to turn it on. Help! thank you

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  • Anonymous Nov 14, 2008

    My television purchased Feb 2007 did exactly the same thing, "poof" no sound, no lights, no nothing for about 30 seconds then it popped back on with a picture but no sound for about 30 more seconds, then it died.

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  • Protron Master
  • 5,568 Answers

If your sets also produced kind of an acrid chemical odor when they failed, it was likely an electrolytic capacitor that failed catastrophically.
If you haven't done it yet, pull the plug on your set, allow it to stand for at least hours (better overnight) remove the back panel and look for the main power supply. It will have one or more transformers on the (probably separate) board. Check the board carefully for cylindrical devices anywhere between 1/4" - 1.5" in diameter and 1/2" - 2" high that have distorted cases or have dumped nasty looking deposits on the board around them.
Because of the way these turkeys fail, they may have damaged other parts as well so if you choose to replace them, don't be surprised if they immediately fail again. Depending on the manufacturing date of the sets, they may have additional capacitors waiting to fail; between ~ 2003 & 2005, millions of this kind of part were manufactured by otherwise reputable Asian companies but using (unknown to them) defective, counterfeit Chinese electrolyte that guarantees the eventual failure of the parts. 
This kind of problem does not lend itself to DIY repairs.    

Posted on Nov 23, 2008

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