[sdiy] Audio bleed-thru on a minimoog...

[Grant Richter]

This rules out misadjusted balance trimpots on the VCA's. I don't think
there's a trimmer that will solve this problem. Just tossing it around in my
head I am thinking that there may be a ground connection that's opened up.
Probably the first thing I'll do is get the scope out and probe all of the
pins along the bottom of the VCF/VCA card, ac coupled, high gain, to see
where the signal is coming from. I'll let you know what I find!!


Sounds like dried out power supply bypass electrolytics. This would be after
the voltage regulators. If the bypassing is bad the oscillators will appear
everywhere through the power supply rails.




-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20020805/59857043/attachment.htm>