Question about LG 42PX5D 42 in. Plasma HDTV

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LG DU-42PX12X Plasma, picture startes flashing then goes black after a few minutes

Have a 42 in LG Plasma tv on my wall.. Couple of days ago the picture started "flashing" brightly, then all of a sudden the pictue screen does dark, I can still hear he sound, and every few minutes the pic comes back for a few seconds then goes dark again. If i shut the tv off, and turn it back on later, the picture looks fine for a few minutes then starts the same thing again, "flash" for a few seconds then dark. Any suggestions what it might be? the tv is only 3 years old, and LG HDTV Plasma. Thanks

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  • Anonymous Nov 21, 2008

    I have a 50 inch zenith plasma tv. It starts flashing sometimes but doesn't go dark. I turn it off when it does this. When I turn it back on, it seems fine but it has started to do this more often. It is only 1 year old.

  • Anonymous Dec 02, 2008

    Our TV at first got a vertical blue line across the screen on the right hand side of the monitor and in the last few weeks, the flashing and off center picture has been happening. The on and off worked until now

  • loveurdj Dec 20, 2008

    I have the same problem attempting to get a tip on what part needs replacement? I was told the sustain or control board.

  • dobs1000 Dec 20, 2008

    I have the exact same problem with my 42 inch LG plasma.
    Has anyone got his/her tv fixed? How much did it cost?

    Thanks

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  • 227 Answers

You need to get this tv service asap.i beleive that the problem is in the inverter board or yb board.


good luck

caypianan@yahoo.com

Posted on Nov 03, 2008

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Check the controller board, 6871QCH038A. This board is one layer deep into the assembly after the cover is removed. Gently lift the covering circuit board back plane to access.

To do this direct a blast of cold air unto the large chip in the center of the board. If the picture comes back on then you have found it. This means powering the TV while open and this means danger to the novice. Voltage can end your life when you become the circuit path.

Order Part number 6871QCH060Q as the suitable replacement part to this circuit board.

7060 State Road 84 #12
Fort Lauderdale, FL 33317
(800) 432-8542
Fax: (954) 723-9044

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Jun 20, 2008 | LG 42PX5D 42 in. Plasma HDTV

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Sounds like your Y-Z sustain boards. You will need to get pro help and you should be looking at a repair or 400.00
Classtorations.com

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Since I haven't heard back ,I am clearing this from my queue. Best of luck.

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