Xantrex Technology 400R - Manual (Page 55)

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Troubleshooting
Troubleshooting will help you identify the common problems
than can occur with the XPower Powerpack.
Read this chapter before calling Customer Service.
If you cannot solve the problem with the XPower Powerpack,
record the information asked for on “Information About Your
System” on page B–8 and then call Customer Service at
1-800-394-0440.
Common Problems
Buzz in Audio Equipment
Some inexpensive stereo systems have inadequate internal
power-supply filtering and may buzz slightly when powered
by the XPower Powerpack. The best solution to eliminate the
buzzing is to use an audio system with a good quality filter.
Television Interference
The XPower Powerpack is shielded to minimize interference
with TV signals. If TV signals are weak, you may see
interference in the form of lines scrolling across the TV
screen. Try one of the following suggestions to minimize or
eliminate the interference:
• Use an extension cord to increase the distance between
the XPower Powerpack and the TV, antenna, and cables.
• Adjust the orientation of the XPower Powerpack,
television, antenna, and cables.
• Maximize TV signal strength by using a better antenna.
Use a shielded antenna cable where possible.