All about the Roland Jupiter-series

No it's constant

I've made some progress. It looks like the issue is either the bender 
board or the jack board.
If I disconnect these (M4J/M4J) and then monitor the VCA output pin, I 
get unison when I'm centred.
Obviously something coming in on that connector (Bender VCO 2) that's 
throwing it out.

Might get a chance tomorrow to look further.


Will keep you posted.



B
On 05/12/2013 17:24, Nick Zampiello wrote:
> does it change once the synth warms up?  i find that it takes a half 
> hour or so for my JP6 to get stable.
>
> or maybe its one of the modulation sources on the left still detuning 
> the VCO2 even though it's center point is accurate?
>
>
> otherwise have you tried turning the VCO 2 and main pitch control 
> fully clockwise and counter clockwise a few times?  then put them back 
> to center and hit tune.
>
> z
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> On Thursday, December 5, 2013 10:47 AM, "bob@..." 
> <bob@...> wrote:
> Hi
>
> Just wondering if anyone else has had this issue, and if so, if they 
> have any insight into how to cure it.
>
> With the Tune knob set in its' mid position I have quite a detune on 
> all voices. If I move the knob into a 2 o'clock position I'm roughly 
> in unison.
>
> I've calibrated the synth but the issue persists.
> If I measure the voltage on the pot it's as it should be ie. 2.5V at 
> 12 o'clock,
> Looking at the output of the multiplexer I can see that the level is 
> consistent with the other controls.
>
> Any constructive input most appreciated.
>
>
> Bob
>
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