Full CPU jumper settings by board version
As printed: Laser War on a version 1 board has J1b, J3, J4, J6a, J7a and J8 in. A version 2 board row with EPROMs at 5B and 5C lists J1b, J3, J4, J5a, J6a, J7b and J8 in. The games Secret Service to Batman (EPROMs at 5B and 5C) are listed with J1b, J3, J4, J5b, J6b, J7b and J8 in. Games with one 27512 at 5C (Star Trek 25th to Batman Forever) have J1b, J3, J5, J5b, J6b, J7b and J8 in. All others are removed.
Systems
Related tips
- CPU EPROM jumpers J4 and J5
- CPU board versions 520-5003-01, -02 and -03
- CPU jumpers J4 and J5 set the EPROM size at 5C
- Version "3b" CPU boards have extra printer pins at CN3
- Bench-testing a CPU board on +5 V
- CPU boards are only downward compatible
- Where the TIP122 drivers are on the CPU board
- CPU board PIA positions and jobs
Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part One, Clay Harrell (pinrepair.com)