Video Game Repair/Blown Hyper Olympics monitor, continued...
Oddly, I don't see the "follow-up" button on your latest response, so I am just starting another question (this is about the Hyper Olympics game that's playing blind).
The model of the monitor is Hitachi, and the model number is 510YTB22-TC01 - there are no other words or information on this monitor. It's a 19" screen (along the diagonal).
Hope this helps with your diagnosis.
I'm going to guess that you've got a Wells monitor...the model you gave me is for the tube, not the actual monitor, but im making an educated guess. Knowing what I know about the situation and looking at the symptoms, it's my guess that the HV unit on the monitor has died (that or the power supply portion is malfunctioning). Either way, you're not getting the voltages needed to run the monitor. At this point, if you're technically inclined, you can order a rebuild kit for the monitor and repair it yourself. Please note that there are lethal voltages, even in a monitor that is not working, and it can kill you if handled improperly. You can search google for arcade monitor rebuild kits.
An alternative would be to replace the monitor with a used one. Looking on Craigslist, you should be able to find a cabinet or monitor for very little money and just swap them out.
I'm sorry that I couldn't be of more help, but monitor problems are notoriously difficult to repair if you're not in front of it.