noise problem...(distortus maximus debug)

[josesito]

Hi guys...!
A few months ago i decided to build a krank distortus maximus clone... a few day ago i finished the proyect and it works! But when i turn on the pedal some kind of noise apear... is somethin' like UUUUUUUUUUHM... in that moment i tried the pedal with a strat (single coil) so i changed to an other guitar with humbuckers and the same problem... the same uuuuuuuuuuuuhm but a bit louder.... so i checked the pcb and i don't found any problem... when i play the guitar sounds the distortion but when the note decay again UUUUUUUUUUUUUUMH... no hi gain feedback.... only UUUUUUUUUUUHM.... i don't have idea what was the error... somobody have any idea? Thank's for the help!!!!!!! Cheers!

Name of the effect: krank distortus maximus
Layout:
http://img5.rajce.idnes.cz/d0508/3/3519/3519984_f39eb41cbe4aad0697025104c3c0fdb9/images/Krank_Distortus_Maximus_Layout_da_Net_Upload_M.jpg

Schematic:
http://i76.photobucket.com/albums/j6/IvIark_2006/Layouts/Schematics/KrankDistortusMaximusaccurateoriginal.gif

PD: I didn't change any value in the project

[peterg]

Josesito

Welcome to the forum. Please take a look at the "Debugging Page" and provide more info.

[PRR]

If it hums like a non-humbucker, put it in a metal box and check all your grounds.

[josesito]

Well i did that and the same problem... the uuuuhm isn't like pickup huuuuum... is more louder... when i turn the gain or bass knobs up the noise is really loud...

[deadastronaut]

did you add the 'green' jumpers...?.

and use shielded wire on input?.

[josesito]

Green jumpers: yes, i did it...
input wire: i use the standard wire for all...
How can i upload a video of the problem?