Flash has yellow and green game ROM versions; match them to the flipper ROMs
Flash was built on both System 4 and System 6 boards, so its IC14 game ROM exists in a yellow and a green version. Either board can run either version, but the green game ROM needs green flipper ROMs and the yellow one needs yellow flipper ROMs. The newer green set is the one to use.
Systems
Related tips
- Only Stellar Wars and Flash used yellow flipper ROMs
- Flipper ROM colours: white, yellow, green and blue
- "Flipper ROMs" have nothing to do with the flippers
- Which System 3 to 7 games use which flipper ROM system
- Reading audit 00: game number, flipper ROM version and software revision
- Flipper ROM color codes by system
- Andre Boot test ROM flash codes
- Flipper ROMs at IC17 and IC20: replace the originals with new EPROMs
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Two, Clay Harrell (pinrepair.com)