Sunking problem

[onthetundra]

So I put together another sunking pedal and it has a negative quirk.  The active signal sounds awesome.  When the pedal is on its amazing.  The problem is when its off, theres no passive signal and its making a really shitty buzzing, farting, dying computer sound.  I thought maybe its the switch.  That didnt work.  Maybe its a wire. Nope.  Why would the active signal sound perfect and then there be no passive signal?
Thoughts?

Thanks

[jkokura]

Did you wire it for true bypass or buffered bypass? What about your chips, have you tried replacing them?

Jacob

[onthetundra]

Buffered with a DPDT as per the diagram.  And I tried different chips.  It has to be some kind of wiring thing right?  Why else would it work when engaged and then not work when disengaged?  I compared it with another I had built that works perfectly and I am stumped.  Has this ever happened to you?

[madbean]

I would audio probe just before and after C3. A bad cap there could be causing a problem.

[onthetundra]

I will try that and report back.