Has anyone ever had problems with the on board speakers? I have had my Tyros for about four years and am currently having problems hearing my right hand voices through the on board speakers. I have the volume to Max and can hear the left hand but the right hand is very quiet. The sound comes through my Peavy Escort system just fine; but not through the on board ones.
Anu suggestions or opinons?

Do a check on headphones, this will tell you if it's the Tyros or the speakers at fault.