Help with Horizontal Lines Moving up and Down Screen - AVS Forum
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post #1 of 3 Old 09-09-2007, 03:46 PM - Thread Starter
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I just picked up a Samsung 61 inch DLP TV. I have all of my systems (Cable box, 360, Wii, PS2) hooked up threw an HD Pelican Component switch box.

Here is where the craziness happens. When the cable box is plugged in to my switch box everything gets a green line and a purple line moving horizontally across the screen. This includes the 360, Wii, and PS2. The second I unplug the cable box video cables from the switch box everything is fine. What I can't figure out is I had this same setup before I got the DLP and everything worked great.

I removed the cable box from the component switch box and plugged it into the second component port on the television it self and am still getting the lines, but now much much fainter the before.

If anyone has any ideas please help me out. I have been consumed with this problem all day.
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post #2 of 3 Old 09-11-2007, 06:40 AM
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Most likely this is related to some sort of ground loop. try plugging in the cable box without the coax cable attached to it (from the wall to the box), and see if the issue goes away. If so, try a coax ground loop isolator, they are available for under $50.

To quote Socrates: I drank what?
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post #3 of 3 Old 09-12-2007, 10:51 AM
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Did you add any dimmer switches near this set up lately!?!?!? My dimmers in the kitchen were causing havoc in the living room! Just thought I would ask......:-)
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