Owner's Manual

Basic Troubleshooting (Continued)
In this case you can get a ground-loop isolator from Radio Shack or your local
electronics store. These are inexpensive and
easy to connect inline with your
video cable.
Sometimes something
as simple as a portable heater or dehumidifier will
add noise into your wall wiring
that could be picked up by your subwoofer or
powered speakers. A
dimmer switch on a halogen floor lamp or a wireless
internet router positioned near the subwoofer, for example, could also be
possible culprits.
The best solutions are
to use an AC line filter, plug the unit into a different AC
circuit, or in the case of a wireless router just physically move it further away
from the subwoofer or powered speakers.
Support
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