rev1 no master output

Hello all, I have a ddj rev1. I can't get any sound out of the master outputs at the rear of this unit.  I get sound from the connected laptop, I can get sound through headphones through either cue buttons and or master button associated with headphones. I have all levels turned up... what am I missing here? I am using serato lite. it is up to date as is my Mac. I believe there are no drivers to update for the actual Rev1. Any help will be greatly appreciated