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I AM WORKING ON PANASONIC MODEL TC-26LX85 IT GOES OFF ABOUT EVERY 15 MIN. TO TURN IT ON AGAIN YOU HAVE TO PULL THE PLUG ANY IDEAL WHAT PARTS TO CHANGE

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  • vdlalvarez2 Mar 02, 2009

    the tv has been OOF for more than two weeks
    I UNDERSTAND ABOUT REPAIRING TV IT JUST
    THIS SET LCD SET THAT I AM HAVING PROBLEM WITH
    I THINK IT A COMMON PROBLEM THANKYOU.

  • vdlalvarez2 Mar 02, 2009

    FROM THE ANSWER YOU SUPPLY I WE NEVER BE ABLE
    TO FIX THE TV, I THOUGHT YOU WAS FAMILIAS WITH
    THIS PROBLEM BY REPLACING COMPONETS.
    THANKYOU ANYWAY

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8 Answers

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Sounds like the cathode tubes are going bad. better to replace the tv as there are 3 tubes and they are about 350 dollars a piece.
and they are hard to find.

hope this helps.
best of luck.
please remember to rate me.

Posted on Mar 02, 2009

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By a can of Freon or freezemist from an electonc Repair supplier and spray items when it goes out to see if it will come back on. You have a heat sensitive part going bad. Note, condensation will cause it to not work at all so be very frugal when spraying and dry it with a hairdryer.

E

Posted on Mar 02, 2009

  • Eric  Kirkhuff
    Eric Kirkhuff Mar 03, 2009

    I sympathize with you, however the freon is quick and will pinpoint your bad part. Replacing it is another story. . There are times that myself, with my extensive television and power supply background cannot effectively repair a circuit board because of parts and other factors.

    good luck,

    E


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Hi,

Is your TV pushed back against a wall or covered up? Sounds like the TV is over heating and its shutting off. Dust inside the TV can also cause this too. Buy a can of compressed air and blow out the inside of the TV and move it out from the wall where the vent can get some air flow. If its by a heat vent move it away from there too.

Armymason

Posted on Mar 02, 2009

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Download bothe the files below.

To download the file, please, click here 1

To download the file, please, click here 2

Then extract them with WinRAR archiver

It is the complete service manual for a Panasonic Viera.

Some component may have different code, but they have all same troubleshooting diagrams.

On the service manual you can follow the troubleshooting diagrams to test all parts that can give you shutdown condition, starting from power board capacitor up to Jungle IC on mainboard.

Posted on Mar 02, 2009

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Hi there.
It sounds like the TV is going into protect mode, this is so no more damage can be caused to the TV.
Have a look at the PB (power board) for any swollen or blown capacitors, resistors and semiconductors, any one of these components could be causing the TV to go into protect mode.

Good luck and thanks for using Fixya!!

Posted on Mar 02, 2009

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There is some protection circuit that is being kicked after 15 minutes are so working. Might be resistor is devalued or zener diode is leaky.

Posted on Mar 02, 2009

  • Shahid Electronics
    Shahid Electronics Mar 02, 2009

    Hi
    you can buy power supply board from Shop Jimmy. Please call them and ask about board stock.


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Overheating? powersupply might be having problems or components failing. I would suggest having someone look at the powersupply. as there are deadly voltages inside.

Posted on Mar 02, 2009

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Try reset .

Unplug the unit from power chord for 30 minutes and plug back the power chord to the unit .
This will reset your unit .

Replace the fuse .

Posted on Mar 02, 2009

  • SAM ANDERSON Mar 02, 2009

    Check whether the fuse around the power supply board is good .
    If it is blown replace it .
    The circuit is going to protection mode after 15 minutes check the input power supply is proper.
    A high voltage might have damaged the power supply board . You need to test the power supply board .


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Posted on Jan 02, 2017

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