My wiggler started buzzing bad when activated then finally has stopped doing the effects. I engage it and can adjust the output signal and the intensity singal does something when I turn it like if it would be adjusting the trem if it were actually working and in the vibrato mode when I switch to the different modes, the sound quality changes but there is no vibrato. Also the light that shows the rate of the tremelo or vibrato is not working anymore. Could it be that the chip that creates the trem and vibrato is done? Need help, this is by far my favorite pedal and I am totally bumbed out about it.