Question about Philips 42PF9946 42 in. EDTV-Ready Plasma Television

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Screen mass of colours

Help with plasma, the screen is all a mass of colours, sound is ok but i cant get a picture?

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The display driver board may be at fault, or the screen backplane electronics may have a failure. The service tech will try the boards as suspected to service this type of fault.

If the backplane of the display is defective the service cost will not be acceptable.

Jerry G.

Posted on Sep 13, 2008


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Posted on Jan 02, 2017


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If the Video (Picture/Pix) is gone but you can hear the Audio (sound), then it could mean the YSUS PCB Assembly is gone/kaput/finish. Can replace the PCB, not repair the PCB due to timing circuitry involve. Cost maybe roughly $500 depending where you located. The PCB is located on the left hand side of your TV when you are facing the back (Back open). Might find 3-4 brown flex membrane connecting to the plasma panel. The PCB has a silver or black aluminum heatsink (big) on it.
Good Luck.

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