I brought home a Bally Supersonic, my first pin, a few weeks back that would boot, but not flip or have any display. I have gotten everything working except for the displays so far. All displays have been dead since I received the game. I am a total novice at electronics, but am learning a lot as I go. I checked the test points on the display boards and I am getting correct measurements on TP1, but not getting any high voltage at all on the other TP. I checked fuse F2 and it was the only one blown so of course I replaced F2, booted her up, and in a magnificent, bright green flash I quickly blew the new F2.
The only thing I can tell visually (a novice eye of course) is that I have some corrosion on the BR3 rectifier board. (Pictures included) Would this be the probable cause of F2 blowing? What would be the best solution for a complete novice (replacing the board, sending it out for repair, etc)?
Thank you for your time and any suggestions/solutions you may have!