Question about Sony DAV-C770 System

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Strong humming sound coming from the over head speakers

As the volume is turned up, a strong hum comes through the overhead speakers. If I disconnect the top white and red connections in back of the unit, it goes away, but so does the volume in the above speakers. What is wrong?

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Are you running a stand alone dvd player or is it built in?check all plugs for sources coming ineg.dvd,vcr,xbox etc,if one is not in all the way,this will cause a hum.

Posted on Oct 21, 2008

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