Unfortunately I've never worked on a EM, but this place is the gold mine of guru's with these types of machines..
Best advise I can give is sort one problem out at a time, have a really good read of:
http://www.pinrepair.com/em/index.htmThen read it again! Second of all, ask questions and take pics. You dont want to damage anything further. If you can get a hold of the schematics it will also help. I had no experience at all with them previously, but after asking questions here, getting answers then looking at machine with schematics it all starts to make sense.
Goodluck!
Hmm, is that a coil on with the score reel? It looks a bit funky....!