Question about Toshiba 20AF44 20" TV

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Toshiba 21S3E TV Problem

This is a Toshiba model 21S3E
when turn ON power come and go for few scand and stay for while then off
could you till me this is due power capacitor fuiler or fram CCt. ?    Thanks

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SOURCE: TV Toshiba 27af53 shuts down after a few minutes.

please give more detail

Posted on Jun 03, 2009

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Toshiba 27af45 repeatedly turns itself off. Sometimes (usually) every few minutes, other times will stay on for hours. Works perfectly otherwise.

The fact that the television stays on for hours and other times turns in five minutes shows that your problem is intermitent .A defective component in the power supply is probaly causing the B plus voltage to go up.The TV can also have a dry joint which looks more likley i am curtain if you gave the TV a firm tap to the side when it come off it would come on back. Try it .

Dec 29, 2010 | Toshiba 27AF45 27" TV

1 Answer

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maybe you have weak filter capacitor! at the regulated power supply in cold area..


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Black box showing up in center of tv

your closed caption feature is turn on and in the text mode. either turn off the closed captions or change it from text to cc1

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Your set needs demagnatizing if it hasn't been dropped. Only a tv repairman has a demgnatizing coil. However one try: unplug it and turn it back on because all standard tv's have an automatic demagnatizing coil circuit around the tube inside. but doesn't always demagnatize completely.

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1 Answer

Toshiba television

Is it a Toshiba or RCA? What's the model number?? When it "stays on..." do you get a picture and audio okay??? If you continue turning it back on does the lapse in time continue to get longer????

Nov 27, 2007 | RCA F27450 27" TV

3 Answers

Tv comes on for 2-5 minutes then turns off

Solder any / all bad connections in power regulator circuits,
good visual inspect for over-heated areas caused bad small
defective electrolytic caps...Use ESR meter to check,esp.
Horiz driver xformer area............................T.

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1 Answer

TV shuts off after few minutes

tap it on its side then try to turn it on and see if it stays on if it does bad solder connections

Aug 11, 2006 | Sanyo DS31520 31" TV

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