thanks for your reply! I posted some pictures on the group site today, hope you can find them, and maybe help identify what MIDI kit is installed. Cant see any writing on it apart from the ICs.
I totally agree that it is most important to have the mini in playable condition as it is now, gorgeous instrument btw!
I have in collaboration with a tech managed to get this one in good playable condition, so now Im just fooling around to see if I can get the MIDI part working as well, just to work with sequencers and such. (I dont have an external CV generator/converter, Motu Volta or such unfortunately...)
I was hoping that it would be possible to adjust the CV output from the midi kit separately from internal pots, please look at the pictures. This could make it play in tune from internal keyboard and MIDI!?!
I tried to give the pictures self explanatory names, and here are some of my findings.
- After being employed, MIDI outrules internal keyboard CV leaving it to work in gate only mode, ie playing last received midi note on all keys. A power flick restores "normal" mode.
- There are two MIDI DIN plugs but only "in" seems operational, the other one is not receiving or sending messages AFAIK.
- Mod wheel controls filter freq. There may be other MIDI controls available, I didnt really dig in...
- No velocity response.
- There are two added flip switches on the back, they simply attenuate/boost output level and filter freq. Next to these is a dented (about 32 steps) wheel, thought it had to do with MIDI functions (select channel) but I cant seem to figure out its use.
All the best!
Thor
--- In vintagesynthrepair@yahoogroups.com, PeWe wrote:
>
> Depends on the MIDI kit ...
>
> Which is it ?
>
> In general:
> There are 2 ways of calibration,- you calibrate using the MINI´s
>; keyboard CV as a reference,- or you have the CV generated by the MIDI
> kit as the reference.
>
> The CVs generated by MINI´s keyboard electronic are more inaccurate than
> these of a good MIDI-CV interface.
>
> Minimoog´s keyboard devision in semi-tone steps is done by resistors
> which have tolerances and might suffer from age too.
>
> Incoming MIDI note events (note numbers) representing semi-tone steps
> too are digitally accurate.
>
> Given the fact your MIDI-CV interface is in excellent condition, it will
> produce slightly different CV per semi tone step compared to the MINI
> keyboard.
> So,- if you calibrate the MINI to the CVs generated by the MIDI-CV
> interface, the MINI itself will be slightly out of tune across it´s own
> keyboard.
>
> If you calibrate to the MINI´s keyboard,- it will be slightly out of
> tune over MIDI.
>
> AFAIK, there´s only one MIDI kit for the MINI allowing to play the MINI
> over MIDI and w/ it´s keyboard in tune,- the Linntronics.
>
> Have also in mind, if the MIDI kit itself is faulty (damaged or by age),
> you better avoid calibrating your MINI to that kit.
> But it´s also possible your MINI needs restoration,- or both, the kit
> and the MINI.
>
> Eventually it´sa idea to throw out the it 1st, then calibarte the MINI
> itself according to the proceedures described in the manual/servixce
> manual and see if it works and how good that calibration is.
> In that case and w/ luck, you can play a fine instrument as it was and
> is and be sure is working as expected.
>
> MIDI comes 2nd row.
>
> PeWe
>
>
>
> Am 27.12.2010 16:31, schrieb thorkvande:
> >
> > Hi there,
> >
> > My first post I think in this group. I have a Minimoog D with MIDI kit
> > built in under the keyboard.
> >
>; > The kit seems to receive MIDI messages ok, but it need to be
>; > calibrated, in a way, because it plays way off key...
> >
> > Does anyone have any experience with this?
> >
> > Merry Christmas!
> >
> > Thor
> >
>