NetPA Ultra Series • DSP Configurator Software
•
Standby (Contact Closure triggered)
— The amplifier has been forced into
standby via the
STANDBY
port (contact closure), and remains in this state until
the contact is opened. Once opened, the amplifier returns to its last known
active standby state. This function overrides all other standby conditions.
4
Global Status faults
—
(see
figure 92
on page 58)
These are faults that are not specific
to an amplifier channel, see table below for details on the specific faults.
Status
Possible Triggers
Possible Causes
Possible Solutions
Over Temp
The amplifier has exceeded
the recommended operating
temperature.
See specifications on the
Extron website,
www.
extron.com
.
The ambient environment
exceeds the recommended
operating temperature.
•
Verify that the placement of
the amplifier allows for suitable
ventilation and airflow
•
Avoid placing equipment on top or
below the amplifier.
•
Verify that the operating
temperature is within the specified
range.
DC Protection
A DC signal has been
detected on an amplifier
channel.
Hardware failure.
•
Disconnect power then reconnect
power to the unit to determine
if the unit immediately goes into
standby upon power up
•
The amplifier may need to be
serviced.
Loss of AC
•
If a “2” is reported: Loss
of AC is detected.
•
If a “1” is reported:
A momentary loss of
AC power has been
detected in the past.
There is or has been a
disruption in power.
Check the system power distribution.
Main power supply
fault
The main power supply
has shut down for reasons
other than loss of AC, going
into standby, or DC protect
and is effectively muting all
output channels.
•
The power supply has
overheated.
•
There is a damaged
component.
•
Allow the amplifier to cool down.
•
Make sure the correct speaker
load is connected.
•
Check that speakers are tapped
appropriately.
•
Recheck the amplifier gain
structure.
•
Verify that the amplifier ambient
environment does not exceed
the recommended operating
temperature (see suggestions for
Over Temp).
5
Amplifer Output Status section
—
(see
figure 92
on page 58)
Indicates the presence of
or lack of a signal on a particular channel.
•
Green when the audio signal crosses the signal detection threshold of the output
channel (−60 dBFS).
•
Gray when the audio signal does not cross the signal detection threshold of the
output channel.
59
