Intermittent sound: sockets and old ROMs
Intermittent sound is usually Scanbe sockets on the sound board or old masked ROMs (black, no window) with tarnished silver legs. Replace the sockets and swap the ROMs for new EPROMs.
Systems
Related tips
- System 6/7 sound and speech board ROMs
- Sound board jumpers for sound-and-speech games (2K ROM)
- Garbled or partial sounds from bad ROMs or sockets
- Sound and speech board sockets need checking too
- Joust sound board jumpers (4K 2532 sound ROM)
- Hyperball sound board jumpers (4K 2532 sound ROM)
- Which sound board each game uses
- Sound board jumpers for 2K sound-only games
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Three, Clay Harrell (pinrepair.com)