Question about Sony KP-57WS500 57" Rear Projection Television

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Pink line scrolling from bottom to the top of screen in 57 inch Sony rear projection TV

I have a 57 inch Sony rear projection TV model KP-57WS500. Recently (last 10 days), I noticed pink color line moving from bottom to the top of screen continuously. If you are watching a news wher they show face of the news man. You can see first bottom of face turns pink, then slowly middle portion of face and then forehad of the face changing color.

This problem is not bad however, it is not good for the quality of picture expected from Sony. Anyone experienced similar problem. Please help and give suggestion to fix it. Thanks a lot.

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1 Answer

Its your receiver, not your tv! Switch receivers and it will go away!

Posted on Oct 21, 2008

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Rolling lines are color bars that scroll from the top of the screen to the bottom and generally represent a malfunction of one or more raster patterns. The TV picture is made up of scanning lines; however yours has an additional color line moving in between the normal synchronization process. Various electronic elements such as resistors, capacitors, diodes, and resistors, may change in value over time. Changes can make various electronic functions change from a normal routine to an abnormal routine such as you are seeing on the TV. If the problem is too difficult to put up with, you can have the mainboard or video RGB projection tubes replaced if found defective by a professional technician. Other than that, you cannot fix the problem yourself.

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