Troubleshooting; Amplifier Fails To Exit Standby Mode Promptly - Extron electronics XPA Ultra Series User Manual

Troubleshooting

The front and rear panels have LED warning indicators, as described in the following
diagnostic information.

Amplifier Fails to Exit Standby Mode Promptly

The input channel signal LED lights green per indicated input channel when an input signal
is detected.
Power LED
Color
Amber
Green or
Amber
Amber
Amber
Signal LED Problem Description Problem Solution
State
Not lit No output signal
Lit intermittently Unit does not
promptly exit standby
mode when input
signal is present
Lit No output signal
Lit DC Fault is detected.
Unit does not exit
standby
XPA Ultra Series Power Amplifiers • Operation
No input detected, verify the
input signal. If input signal is
present, raise input level until
signal LED lights.
The output signal level of
the source may be too low
to cross the signal detection
threshold of the amplifier (see
amplifier specifications for
details).
Increase the signal level of the
source until the signal LED
lights consistently, or defeat
the standby timer.
Amplifier has been placed in
standby mode and output
has been turned off. Check
remote port. DC Fault may
have been detected (see
below).
Disconnect power then
disconnect the remote
port (if connected). Next,
reconnect power to the
unit to determine if the
unit immediately goes into
standby upon power up. In
such a case, service the unit.
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