OVER VOLTAGE PROTECTION - The MAXX 750 SST will automatically shut down
when the input voltage exceeds 15.5 volts DC.
SHORT CIRCUIT PROTECTION - Reverse polarity or a short circuit condition will
usually result in an external or internal fuse being blown.
OVERLOAD PROTECTION - The inverter will automatically shut down when the
continuous draw exceeds 750 watts. When the overload is removed the inverter
will self-start.
OVER TEMPERATURE PROTECTION - If the temperature inside the MAXX 750 SST
is too high to operate, the unit will automatically shut down. Allow the unit to cool
for at least 15 minutes before restarting after a heat-related shutdown. Unplug
unit while cooling.
LOW BATTERY ALARM - An alarm will sound when the voltage from the battery
drops to 10.6 volts. This is an indication that the battery needs to be recharged.
The user should stop operation of the electronic device at this time, since the
inverter will shut down automatically shortly thereafter, when the battery voltage
drops to 10 volts. Start your engine to recharge the battery.
If the low voltage alarm sounds when the battery is fully charged, follow the steps
for solving lack of output power in the Troubleshooting Guide. The alarm will
sound when the inverter is overloaded, in thermal shutdown, or if there is an
excessive voltage drop between the battery and inverter.
NOTE:
It is normal for the alarm to sound while the unit is being connected to,
or disconnected from, the power source. This is not indicative of a problem.
7. COMMON PROBLEMS
“BUZZING” SOUND IN AUDIO SYSTEMS:
Some inexpensive stereo systems and “boom boxes” emit a buzzing sound from
their speakers when operated from the MAXX 750 SST power inverter. This occurs
because the power supply in the electronic device does not adequately filter the
modified sine wave produced by the inverter. The only solution to this problem is
to use a higher quality sound system that incorporates a higher quality power
amplified supply.
TELEVISION INTERFERENCE:
The Vector MAXX 750 SST is shielded to minimize interference with TV signals.
However, in some instances, some interference may still be visible, particularly
with weak TV signals. Try the following corrective measures:
• Position the inverter as far as possible from the television, the antenna
and the antenna cables. Use an extension cable, if necessary
• Adjust the orientation of the inverter, the antenna cables and the TV power
cord to minimize interference
• Make sure that the antenna feeding the television provides an adequate
(“snow free”) signal and that high quality, shielded antenna cable is used
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