i just got this board and new eliminator dimmer paxs to use in a band gig....the board does not power up and the dimmer pax show no dmx signal present from the board-------any suggestions or ideas?...i have checked the xlr cables and connnections--------eliminator dimmer pax are standard dmx and should power this board from talking to the rep......thanks in advance for any help......also looking for a repair shop to send the board in.....