Question about Philips 42FD9954 42 in. Plasma HDTV

1 Answer

Screen lower half goes black/blank

After approximately an hour the lower half of my plasma screen goes completely black. If I turn the TV off and than back on in 15 minutes the picture returns , for about another hour and once again goes black ?

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  • Anonymous Mar 16, 2014

    i have a black bar about half the screen ..it goes away when you push a button on the remote but comes back in a minite

  • Anonymous Mar 30, 2014

    After it has been on for half an hour to an hour the bottom half of the screen flick on and off as black and then the whole bottom half goes and stays black?

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  • 80 Answers

The lower "Y Buffer" board is defective. Best repaired by a technician, or contact Phillips support for the part if you think you are able to replace a small circuit board on your own.

Posted on May 21, 2009

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My plasma screen goes black on bottom 1/2 of the screen


In most cases the lower Y-Buffer board causes this issue. Unless you know how to work on a TV it is suggested that you have a technician look at the TV and repair it for you.

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Screen Problem


I have been trying to fix one of these tvs and found out from a repair man that the lower half going blank means a problem with the lower buffer. and that is also what the manual I downloaded says.
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Today, after speaking to the Sansui Manufacturer representative from Japan. He stated that all you need to do is to turn off the closed caption from the TV remote and not the DVR remote. Black screen can occur at the top half or the bottom half of the screen depending on how it was originally setup during installation. Try this and hopefully this fixes the problem.

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On a plasma there are 2 buffer boards, upper and lower, it all depends which half of the screen is on as to which buffer to replace, the buffer boards are located usually on the left hand side if you have the back off the unit. You maybe able to reseat the ribbon cables and get the video back up

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