[sdiy] Jp-8 head scratcher

[Colin f]

> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl 
> [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of 
> Florian Anwander
> Sent: 07 November 2013 08:44
> Subject: Re: [sdiy] Jp-8 head scratcher

> As far as I understand it, the autotune does adjust only the 
> absolute tune, not the octave tracking.

Check the service manual.
Power on autotune adjusts width and fine tune.

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.

Cheers,
Colin f