Doepfer

> Can I adjust the range somewhere? 

The 'OFFS' trimpot at the top edge of the PCB adjusts the overall range - maybe it has been knocked out of adjustment or something? If it is not working as you expect, you have little to lose by giving it a tweak!

Tim

Hi y'all,

I have an issue with my A-147 VC-LFO -- The manual promises a range of 0.01Hz - 50Hz.
Using the manual frequency control, I get frequencies in audio range and beyond, from bass (100 Hz or so) to way above audio. No sub-audio levels anywhere.

Can I adjust the range somewhere? Or should I send it back?

Thanks
Vesa

> Hi y'all,
>
> I have an issue with my A-147 VC-LFO -- The manual promises a
> range of 0.01Hz - 50Hz.
> Using the manual frequency control, I get frequencies in audio
> range and beyond, from bass (100 Hz or so) to way above audio. No
> sub-audio levels anywhere.
>
> Can I adjust the range somewhere? Or should I send it back?
>
> Thanks
> Vesa

That's totally strange as the max. frequency of the A-147 is usually around
200Hz. Maybe the LFO capacitor is defective (improbable) or one of the
solder pins of the capacitor is loose (maybe cold solder joint). I'd
recommend to return the module to the dealer or representative where you
purchased the module for repair.

Best wishes
Dieter Doepfer

Yes, thanks for the info! I'll send it back for repair then.

Vesa



> > Hi y'all,
> >
> > I have an issue with my A-147 VC-LFO -- The manual promises a
> > range of 0.01Hz - 50Hz.
> > Using the manual frequency control, I get frequencies in audio
> > range and beyond, from bass (100 Hz or so) to way above audio. No
> > sub-audio levels anywhere.
> >
> > Can I adjust the range somewhere? Or should I send it back?
> >
> > Thanks
> > Vesa
> 
> That's totally strange as the max. frequency of the A-147 is usually around
> 200Hz. Maybe the LFO capacitor is defective (improbable) or one of the
> solder pins of the capacitor is loose (maybe cold solder joint). I'd
> recommend to return the module to the dealer or representative where you
> purchased the module for repair.
> 
> Best wishes
> Dieter Doepfer
> 
> 


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