Here are a couple of Electro Harmonix Memory Man Deluxe delay pedals we’ve had in for repair.
The pedal in the right was distorting badly with an ES-335 when set to unity gain; a problem with the Memory Man is that they don’t like hot guitar signals. This can be reduced somewhat by calibrating the pedal for optimum performance, which I did with this pedal. However, the problem can only really be cured by modification.
The pedal on the left was not passing signal at all, and on investigation the leg to the gain pot had broken off.
This is a very common problem with EH pedals (not just the Memory Man) as the PCB is often secured solely by the legs from the pots.