Directed Video VDC301 - Manual (Page 24)

2 24 4 © 2006 Directed Electronics - all rights reserved
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Televisions will not start, power tools will start but will not continue
to run.
Certain induction motors (motors without brushes) may require two to
six time their wattage ratings to start up. If the power tool runs
momentarily then stops when power is applied, try leaving the power
to the tool "on" while quickly turning the power switch on the
Inverter on and off.
Buzz in audio systems
Some inexpensive stereo systems and "boom boxes” will emit a
buzzing sound from their loudspeakers when operated from the
Inverter. This is because the power supply in the device does not ade-
quately filter the modified sine wave produced by the Inverter. The
only solution is to use a sound system that incorporates a higher qual-
ity power supply.
Television interference
The Inverter is shielded and filtered to minimize interference with TV
signals. In some cases, particularly with weak TV signals, some inter-
ference may still be visible. Try the following corrective measures: