MTX 81000D

Hey guys.

I've got this amp up and running again. The only isssue at this point is some audible noise (scratchy/screechy)

It's not terribly loud, but is audible.

Here is what the output looks like even with no signal on the inputs

Scope= 0.2v/div


After a search, I don't assume anyone has a schematic? :eek: