Discussion about the Korg PolySix synthesizer

Thanks Tony! Unfortunately the octocoupler has already been replaced.  So we can rule that out. Both sides of the  board have been thoroughly cleaned and all the traces redone everywhere that the battery acid leak occurred. I am open to other thoughts / suggestions you or anyone may have. I am even half tempted to by a kiwi six replacement board and power supply If could be sure it would fix these issues but would hate to drop that kind of money and still not have the P6 fixed.... Jack