Question about Toshiba MD20F51 20 in. TV/DVD Combo

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Horizontal line May 03, 2007 Toshiba manufacturer; Good day, my problem is a black screen with one horizontal line at the center of the screen. the power supply is good and the horizontal ic is also good sincerely yours; olao

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  • olao tongay May 04, 2007

    my toshiba tv has a black screen and a horizontal bright line appears when i swith on

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William Rayburn

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Olao,
Your symptoms suggest that your vertical Ic401 has failed. In your Tv that Ic is a LA78040N-E Toshiba p/n# AE002783. Also it would be wise to test the feeder caps in that circuit, especially anything in the 100uf range.
This is not an expensive repair for a qualified shop. The Ic is under $20.00 dollars and caps are a buck or two - the labor will be your most expensive element of the repair and it shouldn't take an hour start to finish..
Hope this helps!
Bill

Posted on Dec 01, 2007

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