Yamaha CS80

--- In yamahacs80@yahoogroups.com, "erikfromhere" <moogsynthex@...> 
wrote:
>
> My guess would be the saw- and/or pulse-gate is always open. Try 
> replacing the FET6 or FET7 (2SK30) or TR6 or TR7 (2SA561). However, 
> you say the waveform can be heard even when the vcf-volume is 
> closed. Then I would say the sinewave is not a pure sinewave. Does 
> the waveshaper output a perfect sine ? You'll need a scope for that 
> on pin 2 of ic9. Or does vca3 (IG00151) distort the sine-wave ? Try 
> replacing vca3...
> Good luck.

Thank you. 
Will try to do so, just back from a few days of vacation.