The Kawai & Teisco Analog Synths Group

Thanks for your answer!

--- In kawai-teisco@yahoogroups.com, "gil_we" <gil_we@...> wrote:
>
> Does it happen on all voices ?

Yes, all voices are affected. I am wondering, what kind of waveform
should show on pin KCV on the sound board, I guess, a simple
rectangle, whose amplitude is magnifying by changing the KCV-value on
the User panel... but several times a second, there's an impulse in
the amplitude (same wavelength), its about 3V while the normal waves
ride at 2.5V.
Is this waveform connected to some addressable sample-hold thingy? if,
yes, there might be the problem...

how does a bad 4066 feel? how did you locate it?

 
> Someone on the vintagesynthrepair group has just noted about a 
> spanish company sending him the schematics for SX240, you might be 
> able to get the one for the SX210 too...

> "I get it from spanish official service 'Bilbao Trading' in Madrid."

Seems to be the only solution to try it, I'll scan and post it, when i
have a copy of the schematics

best reg, claudio