Promate 240 - Troubleshooting Guide; Buzz in Audio Equipment; Television Interference

IX. TROUBLE SHOOTING GUIDE
Buzz in Audio Equipment
Some inexpensive stereo systems have inadequate internal power-supply filtering and may buzz slightly when powered by the
Powerstation. The best solution to eliminate the buzzing is to use an audio system with a good quality filter.
Television Interference
The Powerstation 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 Powerstation and the TV, antenna, and cables.
· Adjust the orientation of the Powerstation, television, antenna, and cables.
· Maximize TV signal strength by using a better antenna. Use a shielded antenna cable where possible.
· Try a different TV. Different models vary considerably in their susceptibility to interference.
AC Power Supply Problems
Problem
Possible Cause
Solution
1.
Use an AC product with
AC product not operating
1.AC product is more than 400W
power rating less than
2.AC product is rated at less than 400W,
400W
but the high starting surge has tripped
2.Use an AC product with a
the safety overload.
starting surge within
3. Battery has discharged to 9V ± 0.3V
800W surge rating of the
Powerstation
3.
Turn the AC outlet off and
recharge the
Powerstation
Overload shutdown
Appliance power requirements exceed
the capability of the Powerstation
Unplug the appliance and
confirm that the appliance’s
power requirement is 400W
or less before attempting to
restart the appliance.
Over temperature shutdown
Inverter has overheated due to poor
Turn the AC Outlet On/Off switch
ventilation or excessively warm environmental
off and allow Powerstation to cool
conditions.
for 15 minutes or more. Clear
blocked fan opening or remove
objects covering the unit. Move to
a cooler environment.
Alarm sounds
4.Internal battery is nearly discharged
Recharge the Powerstation
10.3V ± 0.3V
5. If you ignore this warning, the Powerstation
will automatically shut down when the
Battery reaches 9V ± 0.3V.