Schumacher XI75DU Manual Del Usuario página 7

NOTE: If more than one device is to be powered, start one device at a time to avoid a
power surge and overloading the converter. The surge load of each device should not
exceed the converter's Continuous Operation wattage rate.
IMPORTANT: If there is a short circuit or power surge in the device,  will display
and the alarm will sound. Press the ON/OFF
displays after several attempts, there is a short circuit or the device requires more
"starting" or "peak" load than the converter is capable of providing.
NOTE: After two  events, the converter will go into a mandatory 10 second cool-
down period before it will turn on again.
IMPORTANT: If you are using the power inverter to operate a battery charger,
monitor the temperature of the battery charger for about 10 minutes. If the battery
charger becomes abnormally warm, disconnect it from the inverter immediately.
NOTE: You can use an extension cord from the inverter to the device without
significantly decreasing the power being generated by the inverter. For best
operating results, the extension cord should be no longer than 50 feet.
USING THE USB PORT
The USB port provides up to 2A at 5V DC.
1. Plug the device into the USB port.
2. Press and hold the ON/OFF
speaker will make a brief "beep". This is normal.)
3. Turn the USB device on.
4. Reverse these steps when finished using the USB port.
USING THE CONVERTER TO OPERATE A TV OR AUDIO DEVICE
The converter is shielded and filtered to minimize signal interference. Despite this,
some interference may occur with your television picture, especially with weak signals.
Below are some suggestions to try and improve reception.
1. Try altering the position of the converter, antenna cables, and television power
cord. Add an extension cord from the converter to the TV, to isolate its power
cord and antenna cables from the 12 volt power source.
2. Try coiling the television power cord and the input cables running from the 12
volt power source to the converter.
3. Affix one or several "Ferrite Data Line Filters" to the television power cord. Ferrite
Data Line Filters can be purchased at most electronic supply stores.
NOTE: You may hear a "buzzing" sound being emitted from inexpensive sound
systems when operated with the converter. This is due to ineffective filters in the
sound system's power supply. Unfortunately, this problem can only be resolved by
purchasing a sound system with a higher quality power supply or higher quality filter.
button to turn off the alarm. If the 
button to turn the converter on. (The internal
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