Hey Mac,
I'm not trying to sound like a jerk, but you really haven't supplied the proper info in order for anyone to help you here.
When posting a problem, you first need to state all of the specs, what the board is, what the cabinet is that you are putting it in, etc.
When posting pics and videos, they need to be of what it is doing wrong, not pics of the board with no wiring to it, those pics don't help.
Theres seems a be a problem on these boards forums where people will post a vague problem and expect someone to know off the top of their head whats at fault.
Then when they are told to do certian first steps, such as meter for proper voltage at the board (not the power supply), they instead take the lazier way of just asking more questions and never following through with what they were told to do.
First steps in board repair: 1) visually check for anything obvious 2) Verify 5v (typically around 5.1v) at the board (best to check right at the power pins on an ic chip) 3)reseat chips and check for bent legs. Some times these chips need to be have the legs cleaned and too darn many times, some legs need to be repaired (new leg soldered on) especially in the case of older boards like Pacman, Galaga, etc.
True, there are some common known problems that can be answered quickly, but more often they can't be answered withou more info.