So I have a taxi who developed 'reset' symptoms. However when it first happened it was periodic and the game when allowed to sit in attract mode for a few minutes, would then play games without resetting. Now, as soon as the game boots and kicks a few coils during the boot, it 'resets' instantly and stays looping like that. When the problem first started happening, wiggling / pressing the cable connection on the power rectifier board fixed it. I am guessing its a 5v issue, and that some component is bad or the game needs some solder reflow but I am unsure how to test that theory on the board. Assume I am an idiot with a pinball machine and a multimeter. What's the first thing I should check, and how do I check that thing?