Switch the mixer on – Press the ON/OFF switch. 
The blue Power indicator on the rear panel lights.

The blue 'power good' LED indicates the PSU is supplying the correct voltages.

If you experience loss of audio and the power LED is not illuminated, but the rest of the desk appears to be functioning normally, this suggests there is a hardware issue.

As a precaution the output has been muted to prevent potential damage to connected PA / speakers.

Please contact your dealer or local distributor to arrange for a service