I have a YCV80Q which has worked fine but now the buttons on my amp won't switch channels and the boost button no longer works. Both of these can be switched on/off from the foot pedal but not on the amp itself. Is this an easy fix or a bad sign of something worse? I'm a total noob with these things.
should be a pretty easy fix if it works on footswitch. my guess is that switches on amp are not making contact internally. I hope that is all it is. Worth a look. Remember, poking around inside a tube amp can be a deadly affair. Try spraying some contact cleaner on the switch internals.