[sdiy] Minibrute issues w/ volume

[Bruno Afonso]

Hi everyone,

I'm having an issue w/ my minibrute where triggered sounds from keyboard
come out at a very low volume. Both headphones and main outs show the same
issue.
I'm wondering if you guys can point me in the right direction and I wonder
if it is possible to diagnose with a multimeter (maybe check rms value?)
since I don't have an oscilloscope with me at the moment.

Full schematics are here:
http://hackabrute.yusynth.net/MINIBRUTE/schematics_en.html

If I set LFO to control AMP can get the sound back to normal levels which
leads me to believe the issue may be in the output of the envelope OR
before the Amp input ? I'm guessing at the output of env I should see a DC
CV-like signal? I could potentially compare signals between filter and amp
envelopes.

What else should I be looking for? Any advice would be good for my lack of
knowledge in debugging these issues!

Thanks
b
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20161008/f639ff3a/attachment.htm>