Reading the System 80 CPU DIP switches

The CPU board has 32 DIP switches in four banks of eight; facing the board, left to right, they are S1-S8, S9-S16, S17-S24 and S25-S32. The game reads them only at power-up and when player one starts a new game, so cycle power or start a game after changing them. 80A and 80B settings differ a lot from these.

Systems

• Gottlieb System 80

Related tips

• System 80 DIP switches 25 to 32
• System 80 DIP switches 17 to 24: game play
• Which System 80 CPU board goes with which games
• System 80 ignores the DIP switch settings
• System 80 CPU board main chips
• Testing the DIP switch inputs with the test EPROM
• System 80 and 80A CPU boards swap only with the matching U2/U3
• U2/U3 rules ROMs decide which system a CPU board runs

Source: Repairing & Upgrading Gottlieb System 80 Pinballs from 1980 to 1989, Part Two, Clay Harrell (pinrepair.com)