That's not the same board as in the MPC2000s. If it really isn't working even after a factory reset, I would try to get the unit replaced. Apart from that you could only try a certified Akai service to have it fixed.
@ trackheadz - VST should be able to help you. They're an authorized repair service for Akai and many other brands, and their reputation is excellent.
They also handle warranty repairs as well.
Their website is at http://www.vstservice.com/.
My 8 outs are okay, but there is some bleeding between outputs. Any ideas on how I could solve that? It's quiet but its there none the less. The 60 never did it though!
Kwality, its a possibility that you may have reverb on the sample so its bleeding to your other outs. Or you may have to pan the out hard left or hard right. See what happens.