System 80B PROM1 jumper for a 2716 or 2732 game ROM

The first 80B titles take a 2716 game ROM at PROM1 and later titles a 2732, and the board must be jumpered to match. For a 2716, E4 is fitted (a vertical link from pad E4 to the unmarked pad left of the resistor above it) and E3 left out. For a 2732, E3 is fitted, linking pads E3 and E4, and E4 left out.

Systems

• Gottlieb System 80B

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