Build Your Own Clone Message Board

Hello all,

I completed my Lazy Sprocket build yesterday and after testing it and finding it working fine, I made a big oops. I have a 9V supply for my soldering iron and had it next to my Onespot. While doing another test after finding that it worked, I accidentally plugged in the 9V supply from my soldering iron (tip positive). I quickly disconnected it after realizing my error. It was too late, as the damage had been done. The state of the Sprocket was then that it would pass a bypass signal through fine, but when engaged, would only pulse the LED, accompanied by a pulsing, slight thump sound, with no guitar/bass audio passing through. My first thought was to check the Zener diode, which had gone bad and was now showing continuity both directions. I work in an EMC lab and was able to swap out the diode with the same Zener. However, the pulsing problem persists. My guess is it's another diode, or I have smoked the chip. I did pull the chip out of the socket and the pedal continues its' pulsing. No caps appear to have popped. Attached below are photos of the board. Hopefully we can figure this out and help someone else who pulls the same boneheaded move I did, as I haven't seen this particular issue on the forums.
Thanks for your help, and have a great day.
-Anthony
(PS: I know one of the jacks is different, my kit was missing a jack so I grabbed one I had lying around and used it for the mono connection.)

that pulsing power supply is almost always an indication of a short from 9V to ground. the pulsing is the supply overloading, flipping into safety mode, then trying again.

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