Hey guys, I am new to working on old arcade systems and stuff but at relatively inclined in all the systems involved as I am an aerospace engineer. The person I bought this system off of ran a business leasing them out to other businesses and he said it wasn’t worth his time to fix it. He said it just stopped losing the game one day. All the lights turn on and the board flashes a bunch of lights, but nothing sound wise or on the screen when turned on. Any ideas? Anything I should check for or test? Pictures are attached. I think it has had a LCD screen put in a while ago. But it has worked since then.