Debugging, audio probe, Crunch Box

[ulfax]

Hi.

Im trying to debug my crunch box clone. Schematics http://img201.imageshack.us/img201/7144/crunchboxschemfinalv2gf2.jpg

When i tried first i hade no sound, bypass worked though.

This is my 5th stompbox and the second one i've run into trouble with.
So i started to probe it.

I not sure exactly how the probing works. I've pluged the guitar to stompbox input and the probe to the amp input.

I get sound to the first cap (C1) and then silent. I tried replacing the cap twice. But still dead silent. Then i remove the cap lead, that goes to R1, from the pcb. Then i got sound on that cap lead, when i was solder to the board it was dead silent.

So can it be a short circuit after the C1?

Would a short circuit kill all sound?

[J0K3RX]

Pictures? Crunch Box is a real easy build shouldn't be hard to spot... 

[MikeH]

Would a short circuit kill all sound?

Absolutely - especially if it were to ground.  Continuity meter is also a helpful debugging tool - it can be used to determine if your signal path is grounded out at any point.

[Goodrat]

If you had an ohm meter you could tell us some measurements to ground on those input components for example.

[DIMstompboxes]

I not sure exactly how the probing works. I've pluged the guitar to stompbox input and the probe to the amp input.

Then i remove the cap lead, that goes to R1, from the pcb. Then i got sound on that cap lead,

What exactly do you mean by "and probe to the amp input" ? Is it the Opamp input? what pin number?
I would measure first all the circuit volt reading so I could know which should have or should be 0v reading. There you'll find if something or somewhere is shorted or maybe grounded.