Strange popping noises and no music

Hi guys,

The last two gigs I've had, I've had strange, regular popping noises through my headphones and no sound through the speakers or the headphones (except for the popping noise). At the first gig this was fixed my simply turning the unit off and on again, but at the most recent gig the issue remained no matter how often I switched the unit, and my laptop, off and on again. The laptop is responding to the controller.

When I arrived home I connected it up and it worked fine. Any assistance would be greatly appreciated. I am using a DDJ-RX.

Cheers,

Al