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Re: CGS13 Gated Comparator troubleshooting advice . .

2011-06-22 by Adam Scramstad

Hi Ken,

First off - thank you for your input and info :)

OK..... for example:

1 - if you capture 1x pulse & loop it - then turn all stage cv/knobs
to "zero".....
2 - then monitor the CV at the "MIX" OUT .....
..... why does the voltage jump/increase as it passes through stage 8?
Seems like with all stage knobs on zero . . then there should be NO
change in the voltage out at the "MIX" out?

Is this just part of the way the "KLEE" style sequencer works?

Thanks again - and still having a blast w/ this project :)

- Adam



On Jun 21, 2011, at 5:47 PM, sasami@... wrote:

> >1 - Whenever the CV "SENS" knob is turned counter clockwise below 2-
> >oclock.... the "COMP OUT" LED turns on and a voltage is produced at
> >the "COMP OUT" jack.
>
> You are merely setting the detection point below the range of the
> incoming
> signal (or 0V if there is not signal). It is not a fault.
>
> >2 - If an external clock is patched into the "CLOCK" input and you
> >turn the CV "SENS" knob below 2-oclock.... then each of the 8x stages
> >will light in turn sequentially following the clock pulse.
>
> Not surprising. See above. You are simply clocking a High into all
> the stages.
>
> >3 - If you create a "Loop Sequence".... then whenever "Stage 8"
> lights
> >up - the "COMP OUT" light/jack will light up along with it (at the
> >same time)
>
> Correct, as the COMP OUT is now connected to Stage 8, and mimmicing
> it.
>
> >SO basically COMP OUT & Stage 8 seemed linked somehow - and the CV
> >SENS knob seem too sensitive (100k lin)
>
> If you want to change the sense, increase the value of the resistor
> between
> the CCW end of the pot and the negative rail.
> __________________________________________________________
> Ken Stone sasami@... otherunicorn@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/
> ~sasami/>
>
>
>



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