SV: [sdiy] Moog Source service manual or calibration help needed please

[karl dalen]

--- Chris Manders <wight446 at yahoo.com> skrev:

> Hi folks
> 
> My Source is now quite badly out of tune on both
> oscillators.
> 
> I wondered if anyone had any information about how I
> can go about servicing my Moog Source, please? I did a
> thorough search on the Net, but can't find anything.
> 
> I did manage to gain a snippet of information off the
> Encore MIDI retrofit for the Source.
> Apparently for tuning Oscillator 1, you use
> Potentiometer R127 for the low end of the keyboard and
> R123 for the upper end.
> For Oscillator 2, you use Potentiometer R78 for the
> lower end, and R73 for the upper end. Is this right?
> 
> It is a shame that a PDF version of the service manual
> isn't easily available.
> 
> Thanks once again for any assistance.
> Chris

The source has truck loads of  tuning potentiometers, one from any
CV source and they are plenty, you need a schematic of that section
or you can get quite lost. Or if you can very exactly determine wich 
one it is its easy you just adjust that particularely one, 

Test by listening if the outoftuning are cuased by octave change,
detune, notes etc, each have a pot ,figure out wich one it is.
KD 

> 
> 
> 
>  
>
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