Ayre preamp no output


Any answers on why my Ayre preamp quit giving any output signal to my amp after power company switched my meter. This would have turned off and back on my power to house. I can hook my OPPO BDP 105d direct to amp and everything plays fine. When hooking OPPO to preamp and preamp to amp nothing. All the lights and volume goes up and down on the preamp, but zero signal being sent to the amp. 
lnitm
Power down everything by pulling the AC black plug from the gear while its on.
 Let it sit for ten minutes and try again make sure you Oppo volume is up.
 Best JohnnyR
I agree with Audioconnection. And would add while it is unplugged press every button, power switch, rotate volume, input selection etc., this will drain any capacitance that may be stored and causing a processor brain fart in the unit.
Thanks for the ideas. I tried and all i get now is sputtering/ crackling type sound not very loud thru each input all off Oppo input only. Funny I just talked to Ayre about the MP upgrade now it sure needs to go in.