Fellow Kiwisixers,

I have now solved most of my kiwisix' myriad of issues, but a rather large one remains:

The synth has been calibrated as outlined in the kiwisix manual (to the best of my ability using DMM & scope), and have managed to get the synth tuned and toned nicely using the sawtooth waveform.

However when i switch it to the squarewaves (PW and PWM) one of the voices (unit 0) either goes flat or high about a semitone.

Has anyone ever resolved a similar issue, or have any suggestions as to where to start the troubleshooting process?  

Thanks in advance,

Waz