System 6/7 sound and speech board ROMs
From Gorgar on, the sound board holds its sound ROM at IC12 (labelled Sound1 to Sound5, or by colour). Games with speech add a smaller speech board, joined by ribbon cable, with its own 2716 or 2532 ROMs. When fitting EPROMs or moving a sound board to another game, the sound board jumpers may need changing.
Systems
Related tips
- System 9 sound and speech boards fit System 6/7
- Setting up a sound board for speech
- Garbled or partial sounds from bad ROMs or sockets
- Intermittent sound: sockets and old ROMs
- System 6/7 speech boards take 2532 EPROMs
- Sound and speech board sockets need checking too
- Joust sound board jumpers (4K 2532 sound ROM)
- Hyperball sound board jumpers (4K 2532 sound ROM)
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Two, Clay Harrell (pinrepair.com)