3
2.4
FRONT PANEL
MCA 525 model shown. MCA 225, MCA 325 models are similar.
Power Button LED
This is blue when the amplifier is operating normally. It also indicates abnormal operation
according to the codes below. In most cases only the abnormal channel is shut down
so the others can keep playing, and it resumes playing automatically once normal
conditions are restored.
Rapid flashing (less than 1 second)
- short-circuited channel.
Inspect the speaker
cables and connectors and make sure they do not touch other wires or amplifier chassis
or any piece of metal.
Slow flashing (more than 1 second)
- thermal protection.
Allow amplifier to
cool and ensure that ventilation is adequate. In an over-temperature condition the
temperature must drop before output resumes. This could take several minutes
depending on ambient temperature.
Red LED - total shutdown.
This can be caused by a ground fault or DC protection.
Verify whether the cause is in the amplifier by disconnecting all inputs and the power
cord. Reconnect the power cord only and turn on the amp. If the LED is still red, contact
your dealer or Anthem Technical Support. For the MCA 525, the LED will also be red if
either fuse on the rear panel is open.