Discussion about the Korg PolySix synthesizer

I haven't looked into the issue yet, but I figure I'd start here by 
simply asking.  One of the voices goes sharp. I repaired this PolySix 
at the beginning of the year and things have been fine up until the 
past few days. Sometimes now when I turn it on, I have to turn it off 
then on again to get the bank and program buttons to light and 
function.  Is there a correlation here or are these separate issues?