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Only have 3 seconds of power on a 42pf9531 79 plasma tv, green lite comes on then off

Tv turn off, after 3 seconds. also noise coming from what sounds like the transformer, top left of power supply. and measured voltage on primary side of circuit, just sum mains voltage readings, power mos fet maybe stuffed? OR???? help. thanks paul

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Daewoo DSP4210GM 42 in. EDTV Ready Plasma TV

Hi a quick update on this, when I turn the tv on the screen flashes for a split second then turns off? an y ideas anyone?
seems as though it turns on, buzzes then turns off am thinking of drop kicking it!! HELP

Posted on May 20, 2008

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  • 41 Answers

SOURCE: Vizio 42 in L42HDTV10A no power no lights no nothing

Yeah if you don't have any power at all, no lights or anything its the power supply.

Posted on Oct 08, 2008

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SOURCE: vizio 42" plasma tv model#p42hdtv10a

yes,veryry possible you have a bad transister on the power supply board .best way to fix it is to change the hole board.

Posted on Oct 20, 2008

  • 2 Answers

SOURCE: Broken TV

Replace the y-main board and the upper and lower buffer boards. 300.00 from Sanyo. Install them your self or get someone technically minded to do it for you. It worked for me. It's been 6 months and the t.v. is still going strong.

Posted on Jan 12, 2009

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SOURCE: TV green lite comes on for 2 seconds--goes back to

you posted the model number in reverse-----32pf double check-only thing i found so far -------replace c601 470/25v
someone else found a bad FET did u check them
do u have a pdf of this one

Posted on Sep 16, 2009

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