Hi everyone, I'm new to this section and thought I'd post a question about an amp I've been trying to repair. It's an MTX TC6001 switcher. I've checked the power supply and the output devices and they're all good. I've been tracing the schematic the old fashion way since I read here that MTX doesn't give them out. So far I've replaced a bad regulator circuit for the opamp rails (zener+transistor) but it still does not work. I've got a new NE5532 opamp on order since I found one that gets so hot it reflows on it's own. Might be what blew the opamp rail regulator. Anyone have any ideas what else to check before I power up with the new parts installed? Thanks for any help.