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

Well, then you need to find out where you lose the continuity.

Check continuity between IC6 socket pin 21 and pin 11 of IC29 and IC39
(you'll probably have that continuity because otherwise the voice board
wouldn't work at all). Check continuity between any of those pins and pin
14 of CN12 on KLM366. Then check continuity of the connecting cable.

The signal from pin 21 of IC6 (the original processor) and hence also from
the signal coming the Kiwisix board is used for those switches; it is also
used for a lot of other things. Since the voice board in general seems to
work the signal itself must be present on the voiceboard but it doesn't
make it to KLM-371.