@ssrock64 - I see the oxidizing on the coil, not really a big deal. You can just clean it off. However, it appears a resistor has gone bad, and possibly took some of the capacitor with it when it sparked off. I would get that replaced if I'm seeing it correctly in the picture. :)
If that is part of the tuner board, then it is most likely not the cause of the problem you are hearing - unless of course it only happens when using the tuner. That said would be good to have it checked out. If the problem always gets better after sitting, unused, a while - could be a thermal issue too.