Troubleshooting
5–2
Common Problems

Buzz in Audio Equipment

Some inexpensive stereo systems emit a buzzing noise from their
loudspeakers when operated from the PROwatt 1000. This occurs because
the power supply in the audio system does not adequately filter the
modified sine wave produced by the inverter. The only solution is to use a
sound system that has a higher quality power supply.

Television Reception

When it is operating, the PROwatt 1000 can interfere with television
reception on some channels. If interference occurs, try the following:
1. Make sure the chassis ground screw on the rear of the Prowatt 1000 is
solidly connected to the ground system of your vehicle, boat, or
home.
2. Make sure the television antenna provides an adequate (“snow-free”)
signal and that you are using good quality cable between the antenna
and the television.
3. Keep the cables between the battery and the Prowatt 1000 as short as
possible and twist them together with two to th ree twists per foot.
(This minimizes radiated interference from the cables.)
4. Move the television as far away from the Prowatt 1000 as possible.
5. Do not operate high power loads with the Prowatt 1000 while the
television is on.
PROWatt100.book Page 2 Friday, January 5, 2001 3:03 PM