Functionality; Front Panel - Optimus UP-1000U3 Manual De Instalación Y Funcionamiento

4. FUNCTIONALITY

4.1. Front panel

(1) POWER indicator:
It lights when the amplifier is working.
(2) Power ON/OFF switch:
It turns on and off the amplifier.
(3) CLIP, SIGNAL, PROT and TEMP indicators:
The red LED CLIP lights when the signal level is near the saturation limit.
The green LED SIGNAL lights when audio signal is detected in XLR or JACK Line inputs.
The red LED PROT lights when protection circuit is activated, which may be due to an
overload or short circuit in the speaker line.
The yellow LED TEMP lights when the internal amplifier's temperature reaches dangerous
levels for it.
(4) Volume control:
Turning the potentiometer clockwise, increases amplifier's volume.
UP-1000U3 Version 1.0
UP-1000U3
Fig 1. UP-1000U3 Front Panel
Amplifier
Page 4 of 9