I disabled channels 3,4 and 5. Then was able to play 3 notes at a time in
tune. Sometimes I get a quick "portamento" when playing the bad channels-
scoops up in pitch on first playing.


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That generally means that one channel has some leakage current pulling the
pitch control voltage around. There is a function in the manual that you can
use to disable the bad channel, in a pinch, leaving you with the good five.
Otherwise, you'll just have to get it fixed. It's probably a leaky cap or
CMOS switch in the sample-and-hold, but could also be in the oscillator
circuit itself.

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Ciao, Paul D. DeRocco
Paul mailto:pderocco@...

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