Zoë, Nick,

thanks for your help.  I gave found the jumper now.  It seems to have been fitted correctly, however I have removed and then reset it, just in case.  I am still baffled as to how my A-110's can develop a 5th note offset completely on their own.  Maybe this is a case of  the "ghost in the machine"

Who knows.  They sound good though, when they are not misbehaving!

Blair

---In Doepfer_a100@yahoogroups.com, <maq163x2@...> wrote:

Yeah that's it.  You can see at BU2 that Int. CV is normalized to CV1 Input. 

Nick

On Dec 2, 2013, at 7:34 AM, Zoë Blade < zoe@... > wrote:

 

> Guys, can you tell me where the jumper is on the A-110 circuit board which enables or disables access to the CV signal of the Buss please I am not sure that this is what is causing my occasional 'transpositions', but it is the closest thing I have to a clue as to how to resolve my issue.

Is it the "Int. CV" jumper directly above where the buss pins are I'm just going by what's shown on http://www.doepfer.de/a110_tec.htm and http://www.doepfer.de/A100_pictures/doepfer_a110.jpg ...

Good luck!
Zoë.