Differences between the -54 and -132 power modules
The -132 module (Baby Pac-Man, Granny and the Gators) uses 6 A diodes at CR5-CR8 where the -54 has 3 A ones, and splits the GI into two strings on F5 and F6 instead of the -54's single F5. A -132 can stand in for a -54, but not the other way round.
Systems
Games
Related tips
- How the pre-Xenon power supply works
- Safe first power-up of an unknown game
- Make sure the power cord has its ground prong
- Line filter, power switch and service outlet
Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part One, Clay Harrell (pinrepair.com)