ALC2 User’s Manual. Rev. 01
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5. Overview _____________________________________________________
Front panel
1 Power LED.
Blue power indicators indicate that the amplifier is switched on.
2 Signal LED.
A yellow LED illuminates when signal is present on the amplifier’s inputs, independent of the gain settings.
3 Clip LED.
A red LED flashes when the amplifier reaches its maximum output voltage. Continuous clipping will trigger the amplifiers active clip
limiter
circuits.
4 Protect LED.
These LEDs indicate a number of fault conditions. Flashing indicates high internal temperatures and level limiting of the input signal.
When these LEDs are constantly illuminated, the amplifier is in ‘protect’ mode and the signal to the amplifier is muted. This indicates
either: High temperatures in the amplifier’s output section or power supply, RF on the input, DC on the output. These LEDs also
illuminate during power-up.
