Sound and speech board sockets need checking too
Sound and speech boards also have 24-pin EPROM and 40-pin CPU sockets. They matter less than the CPU board sockets, but closed-frame ones should still be replaced.
Systems
Related tips
- Setting up a sound board for speech
- Garbled or partial sounds from bad ROMs or sockets
- System 6/7 sound and speech board ROMs
- Sound board jumpers for sound-and-speech games (2K ROM)
- Intermittent sound: sockets and old ROMs
- Missing words or sounds from cracked connector pins
- Speech board faults
- Which sound board each game uses
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part One, Clay Harrell (pinrepair.com)