BS170 Booster help

[dimefan90]

I purchased a kit to build a boost pedal and followed this layout, but i cant get it to work properly.





I checked and rechecked my wiring and it all seemed to be correct but when i engaged the pedal, the LED turned on and there was no sound, plus when i adjusted my guitars volume. the LED would get brighter and there was a crackling sound.

I contacted the seller and he sent me a photo of one that he completed and the wiring for the 3pdt switch is reversed, so i tried it that way and now the LED doesn't turn on, there is sound but instead of boosting the signal it cuts it and there is a noticeable loss of bottom end.

also the variable resistor (potentiometer) doesnt seem to do anything.

Can anyone tell me what i have done wrong?

is there anything on this layout that should be changed to make it work?

i dont have a camera, so i cant take a pic of my actual pedal but here is the photo that the seller sent to me (the PCB layout in this photo is different to the one i built)

[duckpow]

doesn't look like the original schem for the SHO... 

do you have a schem?

where do you connect the ground to the board?

[caress]

there is so much wrong with that layout.   
either you got scammed or the person selling those is a complete idiot.

http://www.diystompboxes.com/smfforum/index.php?topic=82566.msg739344%3Btopicseen

[dimefan90]

Well it wasnt sold as a SHO, it came with 2 layouts and i chose to do this one.

This project didnt come with a schem, but the other one did. i will try to get a scan of it later on.

What exactly is wrong with it? how can i get it functional.

[petemoore]

  Hard to tell without a schematic.
  Making a schematic is something someone can do once, then no-one else has to do it again [if posted].
  Then we can more easily move on to what 'it actually is, and what might be right with it etc.
  In leu of that, basically you'll have to form a schematic anyway to analyze the circuit.
  I'ts possible the BP switch may have needed to be turned 1/4 turn for correct orientation/wiring.

[DougH]

Did you try to get any support from the people who sold you the kit? I would start there first.

[dimefan90]

I got the seller to send me the schematic.

[duckpow]

On the schematic the Zener seem to connect to ground... but on the layout it connects to the pot...

and have you checked the orientation of the caps?

[DougH]

At first glance, there's something goofy about the switch wiring. Check the wiki section here on how to wire a switch and make sure you understand how it is supposed to work. Then check it against what you've got.

[Ice-9]

First of all i would remove all the wiring to the switch and connect the circuit in/out directly to the jacks. That way the effect should work as perm on, If that works then you know you have a problem with the wiring/bypass. Try eleminate one thing at a time.