Extron electronic XTRA SERIES Amplifier Enters Standby Mode Too Early, Over Temp Indicator LED

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	Signal LED	Problem Description	Problem Solution
Color	State
Green or	Lit	Enters standby mode	The output signal level of the
Amber	intermittently	early.	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	Reduce the power output to
	of one blink per clip.	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	•	Verify that the placement of the
	recommended operating		amplifier allows for adequate
	temperature. The LED turns off after		ventilation and airflow.
	the amplifier cools down sufficiently.	•	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