<br><br><div class="gmail_quote">On Tue, Oct 21, 2008 at 5:16 PM, Robert Johnston <span dir="ltr"><<a href="mailto:anaerin@gmail.com">anaerin@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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* Connect the grounds of the two devices together. This should eliminate<br>
the Ground Loop, but may not be possible, as the TV may not have a<br>
grounding screw/jack (The "Ground" on a PC is the case).<br>
<br>
* Finally, if none of those work, you'll need to get an isolation<br>
transformer.<br>
<br>
For more details, see here:<br>
<a href="http://en.wikipedia.org/wiki/Ground_loop_%28electricity%29" target="_blank">http://en.wikipedia.org/wiki/Ground_loop_(electricity)</a><br>
--<br>
<font color="#888888">Robert Johnston<br>
</font><div></div></blockquote><div><br>I'd look for an isolation transformer before I tried hooking the grounds from 2 separate devices together. Some devices use a hot chassis, so attempting to connect them together could cause a short circuit. <br>
<br>When I was young and stupid, I once connected the ground probe of an oscilloscope to a television set I was working on. When I turned the TV on, I vaporized over 12 inches of copper traces on the board, blew several components in the power supply section, and set the fire alarm off in the building. Needless to say, I never did that again without having an isolation transformer on hand. It won't happen very often, but when it does....<br>
<br>--Darrin<br></div></div><br>