> Hi there
> I have Doepfer A-110-1 Standard VCO
> I power it with the Doepfer DIY-Kit 1200mA
> I cannot get the A-110 to work correctly :it constantly jumps from one frequency to another. (even unplugged with no
> entries connected)
> you can listen to the example here unplugged
> https://www.dropbox.com/s/t02uihfw14adc83/VCO_problem.mp3 dl=0
>
> At first I thought I needed to warm it a little bit but even after a few hours it keeps doing the same.
> I also suspected the CV bus so I removed the jumper but nothing helps
> I have the impression that the module never worked & so far it is totally useless
> Any advice
> Many thanks in advance

I suppose that it's a problem with the supply. Please check if the voltages +12V and -12V are OK. Maybe the transformer does not
have sufficient power. If the supplies are OK please return the module to the dealer where you purchased it for repair/replacement.

Best wishes
Dieter Doepfer