The monitor in my Mario Bros cab was flickering bright then dull then back to normal. Was told by a few people this meant the flyback needed replacing. I picked up a new flyback a couple months ago from Chad (ArcadeCup) and finally got around to installing it last night but didn't have a chance to test it out until tonight. Now when I power the game up I get nothing. Nothing on the monitor. No boot-up sound. The coin door lights do come on so I know the cab is getting power. I tested the B+ and got a reading right about 75v but adjusting it did nothing. What might have happened? Any ideas?