Which System 80 test EPROM image to use

Test EPROM 1 comes as a 2764 image for 80B boards, or earlier boards with an add-on piggyback, fitted in the piggyback socket at U3; and as a 2532 image for System 80/80A boards in place of masked ROM U3. Optional test EPROM 2 checks the game PROM socket and RIOT timers: a 2716 image for boards with a 2716 game ROM in PROM1 (called PROM2 on 80B), and a 2732 image for late 80B boards with a 2732 there (Excalibur, Hot Shots, Bone Busters, Big House). It cannot be used on boards with two masked game PROMs (Z37/Z38).

Systems

• Gottlieb System 80
• Gottlieb System 80A
• Gottlieb System 80B

Games

• Big House
• Excalibur
• Hot Shots

Related tips

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Source: Gottlieb System 80 Test EPROM V3.2 (February 2015), Pinitech