PT 1 Williams & Bally WPC Pinball games CPU replacement review & Install the new PIN-TEK board

In part one I will unbox the new board, remove the 3 chips from my old board, install the chips in the new board. In part two Power up the new board and test its operation. Will it work? Are battery required? Part 2 of this video    • Part TWO PIN-TEK CPU-89 WPC A-12742 AND MP...   Battery acid eaten up your pinball board. Battery acid eaten up your pinball boards Unrepairable pinball board Unrepairable pinball boards WITH NVRAM, PLUG & PLAY. REPLACES WPC A-12742 AND MPU089