One EPROM instead of three
The single 2764 costs less than three 2716s, works with programmers that cannot handle 2716s, and means fewer ROM sockets to replace when refurbishing a CPU board.
Systems
Related tips
- EPROM types used for System 3 to 7 game code
- Leon's test EPROM: what to burn and where it goes
- Running Leon's test EPROM with the boards still in the game
- Set System 6 jumpers J3/J4 for a single game EPROM at IC14
- Use Leon's test EPROM, not the Williams one, for boot faults
- Flipper ROMs at IC17 and IC20: replace the originals with new EPROMs
- Convert a System 3 CPU board to a single 2716 game EPROM at IC14
- CPU locked: check the EPROM chip select
Source: Use any Williams 3/4 or type 6 board for any pinball from this series (2764 EPROM remapping)