"Flipper ROMs" have nothing to do with the flippers
The two flipper ROMs are the game's operating system. A flipper that does not work is a coil, switch or wiring fault, not a flipper ROM fault.
Systems
Related tips
- Which System 3 to 7 games use which flipper ROM system
- Flipper ROM color codes by system
- Flipper ROMs at IC17 and IC20: replace the originals with new EPROMs
- Only Stellar Wars and Flash used yellow flipper ROMs
- Flipper ROM colour tells you the system generation
- Flipper ROM colours: white, yellow, green and blue
- Flash has yellow and green game ROM versions; match them to the flipper ROMs
- Reading audit 00: game number, flipper ROM version and software revision
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Two, Clay Harrell (pinrepair.com)