Have you tried to set it up as per Ken`s instructions?
SetInitial Gain pot to 0, no CV in, feed in an audio signal and
adjust the trimmer until you cannot hear anything on the output.
Once you have done this, plug in a CV signal and adjust initial Gain
to get it VCAing as you like.
If you have tried all this, and still no effect. What voltage are
you getting on pin 1 and does it change when you adjust the initial
Gain pot? (It should!)
cheers
Andrew
SetInitial Gain pot to 0, no CV in, feed in an audio signal and
adjust the trimmer until you cannot hear anything on the output.
Once you have done this, plug in a CV signal and adjust initial Gain
to get it VCAing as you like.
If you have tried all this, and still no effect. What voltage are
you getting on pin 1 and does it change when you adjust the initial
Gain pot? (It should!)
cheers
Andrew
--- In cgs_synth@yahoogroups.com, "prophei" <prophei@...> wrote:
>
> hello all,
>
> for the life of me, i can not get any response whatsoever from
anything on the cgs65 that is
> related to control voltage. this includes the 2 pots that connect
there and the cv input.
>
> i get audio through the audio input and out that is affected by
the control pot there.
>
> i have tried rechecking all of my solder points, tried swapping
out the lm358 for another,
> tried replacing the trimmer... and i am just not sure where else i
best look. any suggestions
> regarding the critical points to check?
>
> given that nothing works down there, must the issue be between pin
1 of the lm358 and the
> 5pin of the tube?
>
> thanks!
>
> -michael
>