Hi guys,

I currently have an Ibanez TB50R combo amp that decided to start putting out a veeerry low volume.  The knobs all seem to work, yet the speaker won't go above a whisper.  I don't see any burnt components or popped caps, and unfortunately I can't find any schematics online.

So I guess...does anyone have experience with this type of response to where they'd know beyond a guess which component went?  Thank you.