System 7 EPROM layout: Hyperball/Defender/Star Light vs other games
Hyperball, Defender and Star Light use 2532 EPROMs at IC14, IC17 and IC20 and have no IC26 chip. All other System 7 games use a 2532 at IC17 and 2716s at IC14, IC20 and IC26.
Systems
Games
Related tips
- System 7 CPU ROM sockets
- EPROM types used for System 3 to 7 game code
- CPU LEDs flash once, then come back on and stay on
- CPU LEDs (or System 7 digit) never light at power-up
- CPU LEDs come on and stay on with no flash
- Identifying a System 3 to 7 CPU board
- System 7 CPU board test points
- Which System 3 to 7 games use which flipper ROM system
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Two, Clay Harrell (pinrepair.com)