Okay... Dissected the DJ mixer...

[bogie]

...and nothing obviously looks like it has been smoked. Didn't remove the boards from the box, and haven't pulled any wires/pots/etc., so I'm gonna put it back together and donate it to something...

Thing made NO SOUND at all... Nothing from any switches, pots, faders, etc...

[wg_ski]

> ...and nothing obviously looks like it has
> been smoked. Didn't remove the boards from
> the box, and haven't pulled any
> wires/pots/etc., so I'm gonna put it back
> together and donate it to something...

> Thing made NO SOUND at all... Nothing from
> any switches, pots, faders, etc...

You give up too soon. See if you have power to the op-amps. Put signals in to the individual channels, and see if anything comes out of the stages immediately following the input jacks. Don't need a scope - just a small amp and speaker. Stay away from where the transformer hooks up (except to verify that you have secondary voltage) and you can't get fried on anything.