I feel like a broken record in all posts, but there isn’t enough info here or maybe you have another post. Why do suspect a board first of all? Most issues are in connections. First step for any general repair is to read the guides for the system you are repairing and test the voltages to every board.
I have helped many people, and everyone’s first action is always wanting to buy a new (whatever) board when something isn’t working. I have had so many people buy boards and still have the same issues, as they simply have no clue to what the real issue can be. Then, you still have a non-working game and much more expense, which likely wasn’t needed.
*IF* the issue is a board, then you have a decision to make, buy another or repair. Repairing takes time to read the guides (2-3 times before starting, and the beginners guide to what components are and how they work), and then to trace the problem area, but to own pinball is to fix pinball. It’s not a fun little hobby we pinball people enjoy, it’s a necessity that is a pain in the ass and happens at the worst possible time.
If it is a board, the cost of the part that is an issue will likely average under $1 for any given issue. The time is the expense here. So that is the dilemma, but again, some prep work/checks need to be done prior to being able to confidently say “it is in fact a board”.