well, i soldered a mc2 a few weeks ago and when i tested it everything worked
fine, exept for the full-midi mode. sometimes changeing the instrument works but
when i play a note on my midi keyboard nothing happens on the gameboy (i know
how to use the keyboard mode on lsdj, thats not the problem and i also tested it
with various DMGs and GB colors and also with different cartridges).
i hope somebody can guess what the problem is, i dont understand much about
electronics but could it be a problem with the PIC?

thanks,
agikakaluna aukha