Sounds like maybe peavy has this happen to point out a burnt out fuse which im not possitive how to get to it but look for a little knob sticking out and if there is one push in and turn it and it will come out with the fuse. im pretty sure that happens so you dont end up playing it more and then something worse happens . im not 100 percent possitive on that but alot of musical equipment has that shut down and something like the lightys to warn you so it doesnt become a major fix. actually a good option on there part. let us know ,im curious.

Hi Mark, for what you say, you would have a problem with the power supply of +/- 15 volts
Control tensions and comment

It is possible that you have issues with caps in the power supply...I would check those first...and you can get the schematics from Peavey....