Korg M1R EX Power board problem

Hello everybody, I’m trying to revive a Korg M1R EX that I picked up as a little project. It was DOA with no information about what potential issues it might have. Opened it up and checked the easy things first and noticed a blown fuse. Replaced with correct value fuse, switched it on and immediately blew again. I then noticed heat coming from the common mode choke. Could the failure of this part explain fuses blowing? And also does anyone happen to know a replacement for it? I thank you all in advance!image