Wow, I had not checked back here until I noticed a reply to my post in my spammed fill email. The monitor is still working OK after the repair. Every once in a while, it flickers, but seems to go away. When it flickers, I can hear a little electronic pop, but it sometimes doesn't happen for weeks. I don't know if it's something that will degrade and fail, or just continue every once in a while. It's good to know others with the Happs monitor are having success, because after October I will be out of the warranty period and rather than fix this one (if it needs it) I might buy another one. I use the arcade about once per week also, but my 2 year old daughter is starting to show more interesting in it. It could be turned on every day in the near future.
As for future projects, I might make another arcade for another location we sometimes go on the weekends. I would have to get those plans past the significant other which might not fly too well. But you never know.
Thanks for replying everyone,