If the frequency shifter works with an external quadrature VCO (A-143-9 or
A-110-4) it clear that the internal CEM3382 based VCO is faulty.

Best wishes
Dieter Doepfer

> Sorry, but I forgot to mention that I did the readjustment
> [without scope], but things stay the same. But it was remarkable that:
>
>
>
> 1. only the Y2 bal. could minimize the signal appearing; but it
> did it very well.
> 2. the signal did not get as high as before, when turning fully
> with the Shift knob. And it hears like the signal is not a real
> sinus/cosinus; its a bit different like before.
>
> Today I remembered I tried to make the simple
> A126_A143_9_connection years ago. But something went wrong and I
> decided to cancel the mod, because other things got priority.
>
> And now I wonder if I try it again succesfully, that I do not
> need the internal osc.
>
> And if it then works well with the extern osc of A143_9, can one
> say that the CEM was broken
>
>
> Thanks for offer repairing, but I want to challenge it, otherwise
> I just wait for the upcoming new FS.
>