Hey all,

I’ll start by saying that this is only my 3rd pedal and it’s the first time I’ve run into an issue. Like the subject line says, my EA Tremolo worked yesterday but today I get no tremolo effect. The bypass switch and all LEDs work fine (change from red to green when operating footswitch & kill switch) but the pots no longer effect flash rate of the LED.

I followed the “first’ set of wiring instructions in the build guide (https://guitarpcb.com/wp-content/uploads/2018/06/BD_EA-Tremelo-v3.pdf)

I’ve read through Tonmann’s Guide and have checked for continuity which all seems to check out. I’m reading up on how to troubleshoot the transistors to see if they might be the culprit but other than that I’m all out of ideas. Photos to follow.

Any help is greatly appreciated!

Bill