Problem with SONIC DISTORTION

[Carlos Best]

Guys

I have a problem with a clon of a Sonic Distortion. The problem is that if I feed te circuit with a music signal (I mean a walkman, CD player and so on ) the thing distorts like is supposed to do, I can see that cause I used  leds for the clipping section. But when I plug the guitar (and I made the test with diferents guitars) the thing doesn't sound
In fact, when is all connected without the guitar, I can hear the usual buzz that we hear in those cases; the same when I touch the tip of the plug.

Please help me!!!!!!!!

[petemoore]

Also, Using the DMM manual as reference, try to apply the tool to the ckt every way you think might show you something...

[Gearbuilder]

Hi,

There's a ground forgotten somewhere ! Check your cord too,your input jack , join input jack,pcb,pot's,output jack and supply plug  ring together ,sometimes the box is anodized or paint ,and the contact is not good .Best of all ,i do a star grounding with a screw in the box .
Bruno