The Kawai & Teisco Analog Synths Group

Next step I'd determine on which oscillator the problem lays and find 
the defected chip in that circuit. I had two defective 4066 on two 
different oscillators in my SX-210, making the env sound strange ("ta 
ta ta ta") when that oscillator was engaged in a chord, but your 
particular problem seems to me more like a defective 2044 chip...

You can compare the voltages between all 2044 and the oine you 
suspect, it may show different values.



--- In kawai_sx210@yahoogroups.com, "texhand" <texhand@y...> wrote:
> --- In kawai_sx210@yahoogroups.com, "nhanalog" <p_tengstrand@y...> 
> 
> 
> Peter:
> 
>  I wonder if it happens on all your patches? Only 8 notes can be
> played at a single moment without running out of poly. If the note 
is
> played and released, the next note should have a chance to retrigger
> reguardless of the sequence.
> 
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> 
> wrote:
> > Greetings all,
> > 
> > I'm new to the group and a have a question for anyone who might be
> > able to answer it. I have the dreaded missing note problem with my
> > sx-240. If I play any long series of unique notes the eighth 
(16th,
> > 24th, etc) is always very faint. I know it's not the keyboard b/c 
I
> > can cycle through say a nine note pattern and its always every 
eight
> > note played which means the missing note is on a different key 
each
> > time through.
> > 
> > What I was wondering was if there is a diagnostic mode that the 
synth
> > can be put in? I have another synth that I can cycle through each 
of
> > the voices (oscillators actually) in turn using a special mode and
> > it's very helpful when trying to track down these types of 
problems.
> > 
> > Cheers, and thanks for you help, Peter
> > 
> > P.S. Does anyone know what a service manual for one of these 
costs and
> > where I could get one?