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Loud squealing noise from dlp tv -50 inch samsung, modelHLN507W

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  • steve221 Dec 08, 2008

    Is this an easy-to-fix user serviceable part?

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  • Samsung Master
  • 8,617 Answers

Your color wheel needs to be replaced the squealing noise are the bearings.

Posted on Jun 11, 2008

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Why does my magnavox 52 inch dlp make a fairly loud humming noise for 10 minutes or so after turning the tV on? It gradually get quieter.


It is likely a bad fan that gets quiter as it warms up from use. There are two fans on that TV - one under the bulb housing and one at the left vent hole. They are special fans with three leads - +, - and an RPM indicator (yellow lead typically).

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First thing to look at is the color wheel this model uses--usually it will make a high pitched fan like sound but can make a grinding sound also.

If it slows down from the 12,000 or so RPM speed it will cause color issues.

HAVE GRINDING OR HIGH PITCHED SOUND?


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1 Answer

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1 Answer

I have a samsung 50 inch rear projection DLP. There is a loud humming noise coming from the TV. Any possible ideas?


probably a dirty or failing fan, check and clean all fans, look at the color wheel and inspect for damage (if you have one)

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