System 1 games and their game PROM letters
Each System 1 game PROM is marked with a letter: Cleopatra A (or "409"), Sinbad B, Joker Poker C, Dragon D, Solar Ride E, Count-Down F, Close Encounters G, Charlie's Angels H, Pinball Pool I, Totem J, Incredible Hulk K, Genie L, Buck Rogers N, Torch P, Roller Disco R and Asteroid Annie S. A "T" PROM is the factory test PROM.
Systems
Related tips
Source: Gottlieb System 1 Pinball Repair from 1977 to 1980, Clay Harrell (pinrepair.com)