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Posted on Jan 26, 2018

Hello; i bought a sanyo crt tv(CM21MS22) yesterday,i watched on it yesterday it was fine, but today i turned it on and it is showing 3 black thin lines running from the bottom of the screen till the top of it, what would be the problem please ?! thanks in advance for your help... regards

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frank echevarria

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  • Posted on Jan 26, 2018
frank echevarria
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Under warranty? need more info. watching cable tv, or antenna, or using as computer monitor, model # check this website to get into the menu program and follow instructions tvservicemode.eleex.com

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Anonymous

  • 3130 Answers
  • Posted on May 22, 2006

SOURCE: Red Line across Screen

sounds like you have a vertical sweep problem. Where the fault lies cpuld be the vertical output IC the verticle b+ feed, could be the capacitors in the vertical circuit?? Your gonna need to troubleshoot thr vrtical circuit if your not a tech thin my advise is to take the set to a pro for sn est. Good Luck

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Anonymous

  • 3130 Answers
  • Posted on Aug 06, 2006

SOURCE: Blue/black vertical line in the middle of screen

Sounds like a bad connection on a ribbon cable or plug comming or going to the LCD display. This is something you should not try to fix as these circuits are very very fradgile and you can easily break or tear a ribbon cable . Call the manufacturer to get a tech to assit you. Good Luck

Anonymous

  • 1 Answer
  • Posted on Dec 01, 2007

SOURCE: Tv wont come on

i think it's the built-in power surge/failure sensor.  Plug the TV into the wall and press RESET on the remote twice.

Anonymous

  • 1030 Answers
  • Posted on Dec 07, 2007

SOURCE: RCA HDTV blurry

this indications that you have a problem with convergence. first try to go into customer menu...setup....convergence. and see if the convergence will adjust.. if it wont then you have a problem with the convergence cuircit boards.

Anonymous

  • 1030 Answers
  • Posted on Dec 07, 2007

SOURCE: 3 curved lines top & bottom/blurred picture

This indicates a convergence problem..convergence power supply probally.. however ive seen 2 other cuicits cause this ..

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