Amplifier Enters Standby Mode Too Early; Limiter/Protect Led Warning Indicators; Over Temp Indicator Led - Extron electronics XPA Ultra Series User Manual

Amplifier Enters Standby Mode Too Early

The input channel signal LED lights green per indicated input channel when an input signal
is detected.
Power LED Color
Green or Amber

Limiter/Protect LED Warning Indicators

The output channel Limiter/Protect LED lights red per indicated output channel as shown in
the following diagnostic information.
LED State
Blinks
Lights
steadily

Over Temp Indicator LED

This indicator does not represent a hard failure of the unit. It is a warning the amplifier has
exceeded the recommended operating temperature for optimal product lifetime.
LED State
Lights
steadily
Signal LED State
Lit intermittently
Problem Description
Audio clipping is occurring at
the rate of one blink per clip.
The amplifier may be
overheating.
Output channel leads are
shorted.
Problem Description
Amplifier has exceeded the
recommended operating
temperature. The LED turns
off after the amplifier cools
down.
Problem Description Problem Solution
Enters standby mode The output signal
early level of the source
may be too low to
cross the signal
detection threshold
of the amplifier (see
amplifier specs for
details). Increase
the signal level of
the source until the
signal LED lights
consistently, or
defeat the standby
timer.
Problem Solution
Reduce the power output to avoid
overdriving the amplifier and causing
clipping.
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.
Check speakers and speaker wiring for
shorts.
Problem Solution
Verify the placement of the amplifier allows
for sutible ventilation and airflow.
Avoid placing equipment on top or below
the amplifier.
Verify the operating temperature is within
the specified range.
XPA U 3502 • Operation 18