this diode has nothing to do with the effect switching......it is on the power circuit. The pedal works without it but still no delay effect. ANYONE WANT TO BUY A DD-3 MADE IN JAPAN THAT PROBABLY ONLY NEEDS A $2 DIODE TO WORK?
? I don't know how to diagnose these things. It is so clean you would think it is new.....barely used ever. I had it sold for $110 but agreed to give the guy his $ back since it didn't work.