CELSIUS PREAMP KIT - ISSUE

[Artheril]

Hey,

I started to build my Celsius preamp kit, but got a problem I can't solved.

True bypass seems good, because if the pedal is not power, the sound of the guitar come from the amp.
But when I plugged the 9v DC jack, a loud "buzz"appears and no guitar sound, while the effect is on ON or OFF.
However, when the effect is turned on, the led is shinning.

Do you have any ideas to solve this ?

Thanks

 

[PJS]

Your input and output jacks are wired incorrectly. The yellow wires connected to the ground pads on the board are connected to the signal connectors on the sockets. If you reverse those connections on the sockets you should get better results