Question about Samsung HL-R7178W 71" HDTV
You have a ground loop problem. Rolling shaded bars are the classic sign of a ground loop. Your TV & AV gear are likely not on the same
ground level as the input cable line. The cable line is likely floating
to a different ground. But this is not hard to fix.
Posted on Mar 14, 2011
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Posted on Jan 02, 2017
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