Precipice Overdrive

[Quentin]

Having issues with this overdrive I just built. Not sure what the issue is. I gone back over the build plan and didn’t see anything out of the way. I have a clean bypass signal but when the pedal is engaged I have nothing. Any help or tips would be appreciated. Thanks.

 

[phi1]

Not seeing anything in the pics.

My process would be:

Check the DC voltage at pin 8 (should be 9v).

Use an audio probe to check for signal at various points in the signal flow.

 

[Erik S]

Can you add pics that show the connections to your dc and audio jacks?

 

[Quentin]

Here is an image of the input and output jacks.

 

[Quentin]

Here is the DC plug.

 

[Erik S]

That looks right to me.

You don't have the volume all the way down do you?

Other than that I don't see that looks like it should be wrong.

I'm with @phi1 - time to start probing for voltage and audio.

Especially since you don't have an LED confirming that voltage is present, that could be a good place to start.

 

[Quentin]

Nope made sure volume was up. And tried adjusting the pots but nothing. I’m scratching my head on this one. On a side note I built the same pedal using a new pcb and it works fine. Not sure what I did wrong on this one though.

 

[darwin999]

I think R100 is 47k not 47R, so the circuit's current draw is pulling Vcc to ~0V, i.e., you can't supply 9V to your circuit w/ enough current...