9
5.3 Mains phase detection
The EPX is able to detect the correct polarization of the mains plug. After
pressing the power key on the front panel of the mother unit, the speed of
the LED flashing indicates the polarization of the mains plug.
•
If the polarization is correct, the LED flashes slowly:
⊗
___
⊗
___
⊗
If you see the LED flashing rapidly
⊗
_
⊗
_
⊗
_
⊗
_
⊗
... please switch off
the unit and flip the mains plug. If you now switch on the EPX again, the
unit should show the correct mains polarization by a slowly flashing
LED.
Note
•
If the EPX issues the mains polarization warning or no warning at all
for both positions of the mains plug, check the connection to earth of
your mains socket and mains cord.
You have to ensure a stable
connection to earth for the mains phase detection of the EPX to
work correctly!
6
Protection system
Your Audionet EPX is equipped with a powerful protection system that
safeguards the mother device and itself. In case of an error the EPX will
show this error state by a special LED flash code. If the EPX LED flashes
like this:
⊂
x
⊃
_
⊂
x
⊃
_
⊂
x
⊃
_
⊂
x
⊃
… (long on, short off)
one of the following errors have occurred:
•
Thermal protection: The EPX will power down if its heatsinks over-
heat.
•
Shortcut protection: The EPX will power down if an excessive cur-
rent is drawn from its outputs over a longer period of time.
In this case you have to power off the EPX at mains power switch at the
back panel. Before turning on again the EPX should cool down, and you
should check for the cause of error and remove the problem.
