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Package was delivered in perfect condition from 1800Plasmas. I powered up the unit and connected a S-video and a PC-VGA input to the plasma. The unit operated for approximately 20 min. Suddenly while testing with a movie a perfect black rectangle appeared in the top left corner. The area width wise goes past 1/2 way and length wise slightly less than half. With no signal input the black area remains. Also the centered menu is cut off by the black rectangle. I suspect a portion of the plasma circuitry has failed. Please help, does anyone know what is going.
wolfman
wolfman