Question about Philips Magnavox 20MT4405 20" TV

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?

lovelabs Aug 31, 2007

Thanks. That's EXACTLY what's wrong, horizontal line. I called Magnavox again this morning, they said it was out of warranty (3 months labor and repair) and offered me an exchange for $57. Not sure if I should take it or not.

1 Answer

Mike Longo

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398 Answers

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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