[sdiy] Jp-8 head scratcher
Maarten Halmans
diy at artefacts.nl
Thu Nov 7 11:31:54 CET 2013
Hi all,
> There is a test point on each voice for the square wave output that feeds
> the autotune.
> You should check the duty cycle is 50% and compare the level between oscs.
Duty cycle is 50% and the levels are the same. If I set scaling and tuning a
bit off, it retunes it to the exact same error. So it seems something is
switched off or on when it goes into autotune. Tunes it neatly, leaves
autotune and switches something on or off again. Leaving me with the pitch
error. Because I already disconnected all summing resistors which carry
modulation sources and disconnected the x-mod vca. All supply voltages stay
the same before, during and after autotune.
Best,
Maarten
> Cheers,
> Colin f
>
>
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