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Poor sound cqality on a Samsung DLP TV

My 71" Samsung DLP TV model HL-S7178W suddenly started to have a "tin can" sound when tuned to any digital broadcast channel, but the regular analog broadcast channels sound fine.

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  • cglaestander Feb 19, 2009

    I am receiving HD via an outdoor antenna. I have also verified the audio settings.



    I think that something failed on the digital receiver sound board. Any idea where I can get a service manual or a circuit diagram?



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If you are receving your HD via a cablebox, check the volume and audio settings in the box's menu. Some boxes have internal volume controls. If the level coming out of the box is below a certain level, you may experience low or poor sound quality. You can also check the audio settings to assure that they are set to the original settings.


michtech

Posted on Feb 19, 2009

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Posted on Jan 02, 2017

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I HAVE A 2006 SAMSUNG DLP HL-S7178W {73" PROJECTION TV},IT WILL ONLY WORK ON AIR 3, COMPONENT 1,NOTHING, COMPONENT 2 HAS PICTURE,BUT NO SOUND.I PURCHASE A "CHEAPER" REPLACEMENT BULB INSTEAD OF A SAMSU


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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.

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HAVE GRINDING OR HIGH PITCHED SOUND?


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Check the fans for dust and dirt if duirty clean them. If you do not see any that are dirty then it means Fan is defective if it stops running while set is trying to come on.
Samsung Parts.com 1-800-627-4368

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The lamp would make you picture dark.The colorwheel will affect color quality.If brightness is an issue = lamp.If color is the issue = Colorwheel.

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