> Hello,
>
> Checking my A-132-4 Quad VCA I noticed that it does not have a
> jumper on position JP19, which according to
> http://www.doepfer.de/a100_man/A132_4_jumper.pdf should be in
> place. The problem is, the document explains all the other jumper
> positions but JP19 is not mentioned.
>
> Could anyone check his VCA and see if they have a connector in
> JP19 (top of the board). Or better still, tell what it does Or
> is it an error in the document
>
> Best,
> Sami

JP19 can be used to apply add a small negative voltage to the switching
contact of the CV socket #1 (C1) of the upper unit. This makes sure that the
VCA is fully closed as long as CV is applied to C1. As soon as a plug is
inserted to C1 the small negative voltage is "overwritten" by the applied
CV.

I will add the description of JP19 to the A_132_4_jumper.pdf document.

Best wishes
Dieter Doepfer