Extron Electronics XTRA Series - Manual (Page 26)

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 (channels 1 and 2) Signal LED lights green per indicated input channel
when an input signal is detected.
Power LED
Color Signal LED
State Problem Description Problem Solution
Amber Not lit No output signal No input detected, verify the
input signal.
If input is present, raise input
level until signal LED lights.
Green or
Amber Lit
intermittently Does not promptly exit
standby mode with
signal present. 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.
Amber Lit No output signal Amplifier has been placed in
standby mode and output has
been turned off. Check remote
port. DC Fault may have been
detected (see below).
Amber Lit DC Fault is detected
on either channel. Unit
does not exit standby. Disconnect power then
disconnect the remote port (if
connected). Next, reconnect
power to the unit to determine
if the unit continues to go
into immediate standby upon
power up. In such a case, the
unit should be serviced.
XTRA Series Half-Rack Audio Power Amplifiers • Troubleshooting 20