Got it! This last message got me to figurin'. I had the VCA and IN patch
cables reversed. Works great! I am now waiting for my first big
soldering/wiring mishap.
The indecipherable line was supposed to say something like I haven't trimmed
the pots on my VCO yet.
THANKS to ALL!
Todd
> -----Original Message-----
> From: JWBarlow@... [mailto:JWBarlow@...]
> Sent: Saturday, May 15, 1999 12:20 AM
> To: motm@onelist.com
> Subject: Re: [motm] Still having possible ADSR problems
>
>
> From: JWBarlow@...
>
>
> In a message dated 5/14/99 7:33:19 PM, tentochi@... writes:
>
> >Not quite sure I understand the ground wire test.
>
> I believe there exists equipment where audio ground isn't
> connected to the
> PSU ground so you would need to connect a wire across to both electrical
> grounds of the different synths. I use banana jacks and can attest to the
> need to make sure that you have a common ground between different
> systems,
> and to the fact that (when not done) the systems will behave very
> weirdly!
> But this is probably not the problem.
>
> >Are there some simple tests I can do to more or less isolate the VCA?
> >The
>
> If you have a second audio source (preferably MOTM to help isolate the
> problem) you can use your VCO in the subaudio range to control your VCA.
> Try this simple patch:
> 1) Noise (MOTM 100 -- or use a signal from a second VCO MOTM 300
> if you have
> one) out to VCA IN.
> 2) VCO (MOTM 300) SINE OUT to VCA CV input.
> Adjust VCO to a low frequency setting below the audio range.
> 3) Monitor the VCA output.
>
> You should hear the amplitude of your signal source change at the rate
> determined by the sine wave of the VCO.
>
> >Ring Mod portion seems to be OK.
>
> The pot I recently mentioned frying, was the CV MOD pot on my 110
> -- the VCA
> would work properly at low CV input levels, but cut out just a
> little above
> it. As I said, it took a while to figure out where the problem lay.
>
> >BTW, I have not touched to pots yet on my VCO. I would believe
> this would
> >
> >make a difference, right?
>
> I don't understand this bit.
>
> Happy hunting!
> John B.
>
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