Kids post-Christmas dance party cut short!

My workhorse Wurlitzer OMT vinyl made a loud buzz then quit playing mid-song. Reject button wouldn't work nor will manually triggering tone arm to center of record. Record spins, no sound, no reject. There was a smokey smell inside. It appears credit system is working properly. Upon closer inspection the 3a fuse was blown: Si4 which when replaced immediately cause same buzz and pop of fuse-- with some smoke coming from fuse. I believe this is for the 30 volt portion? Trying to find info online... thought maybe someone on here has some insight? Help!