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Philips model 37pf9431d/37 no picture

On philips model 37pf9431d/37 no picture. Red led is blinking once, then twice.

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  • chavargas Oct 11, 2008

    on philips model 37pf9431d/37 no picture. Red led is blinking once, then twice.

  • chavargas Oct 11, 2008

    when the TV was ON suddenly turn OFF without touch in anything.

  • chavargas Oct 11, 2008

    on philips model 37pf9431d/37 no picture. Red led is blinking once, then twice.

  • chavargas Oct 11, 2008

    on philips model 37pf9431d/37 no picture. Red led is blinking once, then twice.

  • chavargas Oct 11, 2008

    on philips model 37pf9431d/37 no picture. Red led is blinking once, then twice.

  • chavargas Oct 12, 2008

    on philips model 37pf9431d/37 no picture. Red led is blinking once, then twice.

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8 Answers

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Check out this site hundreds of owners of your model discussing every imaginable problem. Its actually pretty cool. You may find your answer, or be led to it from here. I'd want to know about this site if I owned this tv.

http://www.avsforum.com/avs-vb/archive/index.php/t-570242-p-2.html

anaanymous

Posted on Oct 12, 2008

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Hi, This seems to be complicated. Best would be to get it fixed by Philips itself.
:)

Posted on Oct 11, 2008

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It happens due to high voltage passed at that time when you were watching the TV .its normal this same problem is faced by many clients and because of this high voltage sometimes the mini tubelight like object on the main board gets blown off, it is called FUSE.you can easily locate it on the main board and replaceit and it is not very costly.you can get this fuse at local electronics shop or at
www.radioshack.com
and the other problem is due to high voltage the extra current passes in the circuit board.that is more then what is required.so the soldering joints on the tracks gets short circuit and the tv goes off.it also happens due to moisture collected on the board and gets short circuit.you can try to repair it if you know how to use multimeters and soldering irons properly.
or the final option call the technician the most safe option.as he will be having all the required parts to exchange.and he will be having all the proper instruments and tools for reparing.and you will also get a garranty of parts which he replaces.it will be negligible as per my knowledge.

thanks.

Posted on Oct 11, 2008

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There is a short circuit somewhere in the power module that is causing the protection circuit to take over the power management. It could be something as simple as a broken solder (unusual these days, or something more complex)

I wouldn't recommend doing a DIY if you've never done this sort of thing before, as there are voltages inside a TV that can KILL. Its always best to call a repairman. At least now you know what to look for..

Posted on Oct 11, 2008

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Seems back light inverter board fried and need to be replaced.

Posted on Oct 11, 2008

  • Shahid Electronics
    Shahid Electronics Oct 11, 2008

    in my opinion, following parts seems defective. You need to call TV Tech Person to rectify and replace board.




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Anything special happened prior to this state ?

Posted on Oct 11, 2008

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The protection circuit has detected a high enough current draw from some section of the tv that it has shut the set down completely. You might get it started again by pulling the power cord for 3 or 4 hours, but it will likely shut down again.

It means there is a defective section; there are many possibilities and only a tech who knows how to get inside and check the various sections can find out for sure.

The most common is the high voltage section; it is the section that draws the highest power in the set. But, it could be the deflection amplifiers, audio amplifier or main power supply sections, etc.

Posted on Oct 11, 2008

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Try first unplugging it for half an hour, see if it restarts.

Posted on Oct 11, 2008

  • Ginko
    Ginko Oct 11, 2008

    I think that is power supply switched off by hardware protection.

    There is probably a problem with an internal part and tv had been switched in standby.

    See if unplugging power works.

    If not the tv must be tested to find the fault.

    If you decide to call a technician, or if the tv is under warranty, you can ring the number listed on the owner manual. I think Philips also sells extended guaranty, give them a call.


  • K Damico Jan 08, 2013

    test

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