Extron Electronics XTRA Series - Manual (Page 27)

Amplifier Enters Standby Mode Too Early
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
Green or
Amber Lit
intermittently Enters standby mode
early. 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.
Limiter/Protect LED Warning Indicators
The output channel (channels 1 and 2) Limiter/Protect LED lights red per indicated output
channel as shown in the following diagnostic information.
LED State Problem Description Problem Solution
Blinks Audio clipping is occurring at the rate
of one blink per clip. Reduce the power output to
avoid overdriving the amplifier,
causing clipping.
Lights steady The amplifier may be overheating. Determine the reason for the
overheated state and allow the
amplifier to cool. The LED will not
be lit after the amplifier recovers
from the overheated state.
Output channel leads are shorted Check speakers and speaker
wiring for shorts.
Over Temp Indicator LED
This indicator does not represent a hard failure of the unit. It is meant as a warning that
the amplifier has exceeded the recommended operating temperature for optimal product
lifetime.
LED State Problem Description Problem Solution
Lights steady Amplifier has exceeded the
recommended operating
temperature. The LED turns off after
the amplifier cools down sufficiently.
• Verify that the placement of the
amplifier allows for adequate
ventilation and airflow.
• Avoid placing equipment on top
of the amplifier.
• Verify that the ambient
temperature is within the
specified range.
XTRA Series Half-Rack Audio Power Amplifiers • Troubleshooting 21