Cgs synth

On 09.03.2006, at 04:59, c10h14no2i wrote:

> I can answer two of your questions...
>
>>
>> 2)
>>
>> How do i need to connect the POT ? Middle Pin goes to CV (right
>> beside the PLS connector), left pin to jacket and right pin to
>> Ground ?
>> Info: Pot is 100Klin, so as all pots are.
>
> the CV1 and CV2 inputs on the pcb are for the processor section.
> Those jacks connect directly to the PCB w/out going through a pot.
>

> The processor pots both connect to "pcw" and "pccw" The middle of
> processor pot 1 connects to "pw1", and middle pin of processor pot two
> to "pw2"
>

okay, will try that.

> If you were wiring up a pot for FM or something, then you would wire
> the right to ground, left to the jack and middle to the PCB
>

Got that, that works now.

>>
>> 3)
>>
>> COARSE/FINE. have a TUNE input and 2 pots (both 100klin). How do
>> those get connected ?
>> cause i got a "Tune" connector on the PCB and 2 pots.
>
> For both tune pots you connect the left ends to the positive and right
> ends to negative supplies (when looking at the back of the pot w/ pins
> down). The middle of the main tune pot goes to "tune" on the pcb.
> The middle of the fine tune pot goes to "cvsn" on the PCB, but you
> have to put it through a high value resistor. 4 to 10m.

Hum, will try that tomorrow -- i just finished the whole cabling
stuff (except the "Waveshape Pot", where i am puzzled up, where to
connect it..

middle pin to PCB (SPW)
left side (CCW) to Ground
right side (CW) to SP+

am i right with this assumption ?


Not to forget ... i still have the "have-to-touch TL072" thingie
before the VCO works, anybody got a _good_ idea of that ? it works
after touching,
even CV works (was using FM AC instead of CV, because CV is not wired
100% right ..

Thanks again for any help -- i think i've got good waymarks to the
final end :-)

--jan