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I have built an Erica Synths Polivocks VCA sourcing my own components using the Erica BOM but it's not working properly. I've followed instructions for calibration with a sine wave in to CV1. There is sound but the trim pots don't do anything. On CV2 there is no sound - nothing. I'm working my way through the schematics and going over every component. Any advice greatly received.
ill pull up the schematics and see what i can find, but in the meantime i would suggest reflowing your solder joints. its pretty quick to do, and 80% of the time thats the problem. pay particular attention to ground connections, and use flux if they arent coming out right.
if one side works and not the other, you can try swapping ICs to see if its a bad IC. perhaps comparing voltages on the good and bad ICs would help narrow down the issue.
Thanks for the tips, resoldered and checked for earth, it's now working. Thanks.