Welcome. You're in good company, as there is a decent Sac contingency here.
The best advice you can get here is to search, search, search, any questions you have, before posting a question. A vast majority of all possible arcade repair and restoration-related questions have been asked and discussed at length, and are in the archives here. It's a goldmine of information. The only tricky part is finding it, but the search function here is decent. (Tip: Use the Advanced Search page, in the pulldown above, as it's much better).
That said, don't be afraid to participate in discussions, if you have things to contribute. This is a great community, once you get to know the do's and do not's, so to speak.