All about the Roland Jupiter-series

great! it's always a treat when it's that easy with old gear!

z
 
NEW ALLIANCE EAST!!!!

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On Friday, December 6, 2013 5:08 AM, Robert Stewart <bob@blzproductions.com> wrote:
 
  
OK. Issue sorted.

The fault was down to dirt in the VCO-2 bend switch. Once cleaned
    and the bender recalibrated the problem has gone.

Bit of a weird one to be sure.




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
> 
>NEW ALLIANCE EAST!!!!
>
>--------------------------------------
>
>
>New Alliance East - Mastering
>
>
>New Alliance East - Facebook
>X :::: B :::: S
>
>
>
>
>
>
>
>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
>
>