Help with Zombie Chorus

Started by Enron, April 06, 2012, 10:47:44 PM

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Enron

 I have looked at other threads dealing with the Zombie Chorus issues,
so am I aware of them. I am building one for a school project so I had
to make a custom pcb with AutoCad.

I used everything from this PDF:

http://www.geofex.com/PCB_layouts/Layouts/zombie.pdf

I bread boarded everything before I made the pcb, and it worked fine (no ticking!).
But now I have it on pcb, and all I get is ticking. I get a clean bypass with ticking and
no chorus.

My first attempt with the pcb, I had no bypass at all. I had to connect a wire from the
negative end of the the battery straight to ground in order to get any bypass (as shown
in green using microsoft paint).

All IC's are getting proper voltages. I also still have the perfectly working prototype bread
boarded. Would anyone have any advice to my project?

Here is my custom pcb for the Zombie chorus. I almost exactly the same as the original.

https://secure.flickr.com/photos/zelopast/6906334056/in/photostream/lightbox/

UPDATE FIXED: It was a micro fiber cut in my pcb. Works great besides when I flip the mod
switch and I hear a swirling noise, unless I touch my guitar strings/knobs with my fingers.