I have two boardsets and they both look like this when turned on. Powersupply is working perfectly. Any ideas out there? I would really like to get this out of the garage.
I had the exact same thing happen to me on my Scramble (same cab essentially). Did you check the voltage under load or was the main game pcb disconnected when you tested the voltage from the ps board? I ask because mine would test fine without the game pcb attached, but as soon as I hooked it up, the +5v dropped to +2.6v ...not enough to run the board. I tried 4 different konami boards (Scramble, Super Cobra, Super Basketball & Time Pilot), all of them came up scrambled like yours. I replaced the ps with a switcher and it fired up fine. Place to start anyway