Ah ok. It's connected to the credit board in my cabinet. It works fine apart from something strange has happened to £2 coin. It's 30p per play. All coins work accordingly but for some reason £2 coin now only counts as 2 credits when it should be 6 or 8. Thinking I'm maybe accidentally touched a dip switch on the credit board? It's not a big issue but wouldn't mind finding out what went wrong