One Cactus Jack's would not run on an AA pack
The author met an older-RAM Cactus Jack's CPU board that would not boot on a two-AA pack but ran fine on a CR2430. If an AA pack fails to bring a board up, try the coin cell.
Systems
Games
Source: Repairing Gottlieb System 3 Electronic Pinball Games from 1989 to 1996, Clay Harrell (pinrepair.com)