Question about Philips Magnavox 20MT4405 20" TV

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Black screen, high pitched squeal

I turned off my 6 mo old 20mt4405 a couple days ago and later when I went to turn it back on I got an almost entirely black screen with about 1/2 in line of color/video in the middle of the screen and it's making the most horrible high pitched squeal. Anyone know what caused this and how I can fix it?

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Re: black screen, high pitched squeal

A set that has only a 1/2 inch bright line through the middle of the picture, from left to right, has a vertical output IC that is not working correctly. If the 1/2 inch line is in the middle but going up and down, then the horizontal yoke circuit has stopped working. These are problems which should be looked at by a qualified tech, but if the set was purchased 6 months ago then it should still be under the manufacturer's warranty.

Posted on Aug 31, 2007

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