Mad Catz Street Fighter IV FightPad help

I just received my brand new fight pad today but when i plug it in my xbox 360 the controller dosent start at all,Ive tried pressing the guide button but nothing happens.I think that the controller is not getting power and think that the wire might be the problem.
Is there anyone here that can tell me how can i find out if the pcb on the controller is getting power or to check the continuity of the cable and pcb.

I really hope someone here can help me out