Question about RCA F36450 36" TV

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NO PICTUR JUST A BEEP SOUND

I HAVE THIS TV FOR ABOUT 7 YEARS AND ONE DAY IT STOPED WORKING, IT JUST MAKE A NOISE AND WOULDN'T TURN OFF.pLEASE HELP

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  • ExInsideTech May 14, 2008

    I encountered the same problem a year ago. Likewise I replaced both the transformer and the horizontal output transistor. It worked fine for about a year then recently it broke down again with the same symptoms and the output transistor is shorted again. I replaced that transistor and the set came on with just a vertical line, no horiz deflection and shortly the screen went blank and that hissing noise again. The transistor shorted again. Does that mean that the transformer is bad again and caused the transistor to fail or are there any other things that could it to fail?

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I replaced both the Horizontal output xformer and xsistor. The set came on for few secs and then made that buzzing noise again. I unplugged the TV and checked the xsistor and it shorted again. If I have a schematic that would help tremendously. Again, thanks for your help.

Posted on May 20, 2008

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Shorted Horizontal output transistor caused by bad horiz
transformer....parts to replace = Asti 2078 ( 257805 ) xformer
and 237470 RCA xistor..............................T.

Posted on Mar 03, 2008

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