SOLVED Fordoble boost weird issue

[zeitguy]

Finisned putting this one together. OD side works perfectly, but boost not so much. When I turn it on and dime the boost knob, sound starts to stutter frantically. And it doesn’t boost, it just just muffles the sound.

Also, with my audio probe, this is the weirdest thing I’ve seen : I clip my alligator audio probe to the input jack (which is before the signal even enters the circuit), and when I turn the boost side on, the signal/sound is affected in the same way!
How can the signal be affected by whats happening AFTER the audio probe?

 

[Feral Feline]

Short somewhere, possibly a fried 3PDT

 

[KR Sound]

Have you checked continuity on each footswitch? Make sure the signal’s routing the way it should in each position.

 

[Robert]

I don't think those breakout boards are compatible.

Those are IN/LED/GND/OUT, they need to be IN/GND/LED/OUT

 

[zeitguy]

I don't think those breakout boards are compatible.

Those are IN/LED/GND/OUT, they need to be IN/GND/LED/OUT

You’re right, I swaped the mini board for a proper one. Signal enters boost circuit and dies right away. Doesn’t even reach C10.

 

[zeitguy]

Here’s the part of the schematic

 

[Robert]

Do you have signal on R17?

 

[zeitguy]

Nope, I have it coming out of the Switch and it dies at R17.

 

[zeitguy]

Solved. Maybe some bad traces, but I ended up having to ghetto this thing like in the included picture. Using my mm for continuity solved the problem quickly.