Greetings everyone,
Happy Saturday. I'm working on my second build, an Optical Compressor. Only mod I made was swapping out the capacitors to use it for bass.
Here's my symptoms:
In bypass mode, I get sound... most of the time. Sometimes I need to hit the switch twice, and then I get sound. Then occasionally it cuts out. Big red flag: the volume knob works.
When on, I get no sound, except if I turn the volume all the way up, I get a soft, high-pitched hum. The sustain control doesn't seem to do anything in either mode. The LED does come on.
I've gone over the instructions several times, but I must be missing something obvious. I tested continuity on all the footswitch connections. I noticed that 4 and 7 are shorted, but I think that's intended (having trouble figuring out what connections on the footswitch correspond to what components of the schematic.)
Pictures below.
If the images are too big to fit on the screen:
http://imgur.com/a/fNKuq