Doepfer

Are you able to measure the output voltage of the A-141? There are some
tolerances in the OTA circuit used in the A-141 that may cause some +/-10 mV
offset offset voltage. If it is much more (e.g. 0.5 V or more) the module is
probably defective. If there is a small offset voltage only and you are
familiar with electronics there is a patch to remove the offset: inserting a
Schottky diode (e.g. BAT42) into the output.

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von erase
> Gesendet: Freitag, 6. Oktober 2006 10:50
> An: Doepfer_a100@yahoogroups.com
> Betreff: [Doepfer_a100] A141 trouble
>
>
> Hi, just got a used A141 and there is some trouble with it, just
> wondering if there is a quick fix to this. Problem:
>
> it seems to not shut the envelope voltage correctly, the led is there
> although I have no gate input and when I drive it with my MCV24 it is
> very hard to get it to shut, doing a fast noteon/noteoff simply
> leaves it "open". not at all what my A140´s acts like. of course I
> have nothing else plugged into it (except adsr out when testing)
>
> thanks
>
> d
>
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