I have had/built this pedal for a couple years, about a month ago I took it to a jam and it didnt work pulled it out to have a look at it today. Still doesn't work. I put together a test probe looking for a problem. not that good at reading schematics. I get tone up to R3, but R4 and beyond are all silent.
If anybody wants to look at the schematic and maybe offer some advice that would be great
Thanks
Scot
Main thing here is getting output at pin6 of the IC. If you have no output, then you should check over the soldering and see if any joints look bad. Take some voltages on the IC and make sure it is getting 9v at pin7 and ground at pin4.
Thank you
I took some readings,
pin 4 starts about 2.65v but drops to zero
Pin 6 shows 5.68v
and Pin 7 shows 9.28v
Should pin 4 be zero right away ?
Replaced C3 w/ a new cap and is working again :)