Question about Toshiba 36A40 36" TV

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Toshiba 27" 27DF46

Hello, we have owned a Toshiba 27" 27DF46 model for about 18 months that we bought brand new. It has only ever been used as a gaming tv with our xbox 360 hooked to it to play games and watch dvds.

Last week, after it being on for approximately 30 minutes, I noticed that the screen had reduced itself to a thin horizontal line in the middle of the screen. I turned the set off. It wasn't turned back on till maybe 4 hours later (which I'm sure the tv had cooled down by then), and the same problem happened maybe 10 minutes after it being turned on.

Could someone give me some idea as to what the problem could be before I go calling tv techs to see how much it will cost to fix. I want them to know I have an idea of the problem so they won't try to rip me off.

Also if someone could give me a price range that I could be looking at would also be appreciated. I'm not going to pay too high a price for it to be fixed when I could probably go and buy another, better tv.

Thanks :)

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The other thing that most often causes this is an intermittent/leaky diode D402 located next to the vertical IC heatsink.

Posted on Jul 06, 2009

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Since your problem is coming and going your vertical output Ic is prob still good at this time, It needs to be resoldered and this should fix your problem the repair tech may want to replace the Ic and this is ok too. Location of IC on board is Q301 Part number 23319832 and costs about 10-15 dollars plus labor.

Posted on Feb 06, 2008

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