Rhodes Chroma Polaris

> From: spistrich
>
> I just got my polaris back from a repair shop that did some surgery to
> replace the assignable slider and swap a front panel that had switch
> problems. ( parts from another polaris) note  It appears that the
> circuits now work and the controls work but there  now is this odd
> DETUNE? problem.  As you play through an octave the notes sound sour
> and progressively more off till there is a ppoint when one sounds
> markedly flat then seems to return to being more tonal by the next
> octave, this occurs on almost all presets, some very bad others less
> so. ( possibly noticeable in all sounds to some degree) I tried
> the 'tune all' voice reset button , no improvement, and also the
> detune slider seems to have some effect but  when centered this effect
> is still present, moving the detune slider modifies it but it sounds
> wrong regardless of setting.  Couild the ossillators be out of sync?
> Is there a way to adjust them? the unit plays but as a friend
> says.. "it sounds like you are playing a sour blues scale when you
> play c major."  so far the repair shop is reluctant to repond to my
> complaints and I wonder if anyone has a clue as to what may have
> happenned.

There's no alternative but to poke around with a scope. It sounds like the
usual bad capacitors in the sample-and-hold circuits, but step one is always
to make sure the power supply is stable.

--

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