Question about Toshiba 27A50 TV
The picture plays fine for hours then I get a black screen and no sound with a flashing red power light , the TV will eventually power down. Is this a major problem? Is it worth repairing or should I just purchase another TV (don't want to do that)?
I read online that another person had a similar problem and it was some type of cold solder joint. Does this sound like my problem?
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Posted on Jan 02, 2017
just fixed one with that problem it was the vertical output ic Q301
that was shorted. try wicking it out. it is a LA7833S.
Postings say to be sure to use the Toshiba part
Posted on Aug 28, 2008
Same problem with mine. Relays click, sound, no picture and a flashing power LED. I finally found a schematic online. I went through the high voltage circuits and found the power transistor 2SC5570 was shorted out. There is also a pico fuse in that area but my was not open. I replaced the transistor and prayed the flyback transformer was not shorted. It wasn't, I'm watching my old 36" right now. Not a bad fix (17.00) bucks. Wonder what a service tech would have charged ;)
Posted on Jun 14, 2009
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