Bugera 333XL Strange popping

[Danglin' Fury]

Hey all, first thing Happy Easter. Second, My personal amp, a Bugera 333XL starts making a popping noise about 2 or 3 minutes after I switch it off standby.The load is * ohms and I have the impedence switch in the correct position. The effects loop on or off. And when I put the standby switch back on, I hear a cap draining through my speakers. Anybody have any ideas before I crack it open?

[Jazz P Bass]

First thing that comes to mind is the infamous 3 pin molex connector.