This is the MPU from my Stern Flight 2000. It was acid damaged by the back-up battery. I sanded off and neutralized all the corrosion, then replaced all the components in the affected area. This is my first time powering on the board since repairing it. I'm using an arcade power supply to get my +5V DC and +12V DC. Ground goes to TP4, 5V goes to TP5, and 12V goes to TP2. The LED flashes each time a power on test passes. I'm hoping to get six of seven flashes.
NOTE: There should be seven flashes when this board is in the game. Without +43V DC, which my bench power supply can't provide, the board fails on the last flash. Six flashes on the bench is an encouraging sign, though.
