hey what’s up? new to the forum, but i’m having some issues and i’m not sure who else to ask.

a few years ago i was using the poly chorus as a means to do double tracking vocals and i think i blew up the input or delay diode? i dunno. whenever i play guitar through it it clips and cuts the sound out, which is a HUGE problem when playing live. i’d like to just repair the thing instead of outright replacing it. let me know! thanks!!!!