Ibanez DMD2000 not working

[Mateoo]

I’ve had this dmd 2000 for about a month and everything worked except when I would change the delay time it would make a loud noise. Now the delay doesn’t work when ever I play all I hear is my dry signal. I’ve checked every thing it’s going out of the “ mix” output and all the knobs are turned up effect is on. I also took it out of my effects loop and tested it just the guitar going in and the output to an amp. Any thoughts?