Archive of the former Yahoo!Groups mailing list: Discussion about the Korg PolySix synthesizer

it appears from many recent posts that a very common issue with the
Polysix after battery leakage is that certain LEDs stay on all the
time. Commonly the patch selection ones, but others as well. Now a few
people (including myself) have replaced IC 30 and 31 but this hasnt
helped. Aparrently digging out corroded traces doesnt solve the problem
either... Thus I will propose that the problem is UNWANTED
CONTINUITIES. The pushbutton switches stay on..or is it that they are
bypassed and the LEDs light up because they get current regardless of
the switch position. Can the battery acids, if they are indeed
conductive , actually soak into the plastic board? Would there be a way
to literally SOAK the board in a neutralizer that wouldnt hurt the
chips etc? any other thoughts?