System 80 CPU board main chips
From the kit's board-wide parts list: U1 6502 processor; U2 and U3 rules ROMs; U4-U6 6532 RIOTs; PROM1/PROM2 game PROMs; Z1 4528; Z2 7474 (or 74HCT74); Z3, Z11, Z12, Z16, Z17, Z24, Z26, Z27, Z34 and Z35 7404; Z4 4081; Z5 5101 256x4 RAM; Z7 74LS04; Z8 7402; Z9, Z13 and Z14 7400; Z10 74LS05; Z15 7432; Z18, Z20 and Z22 74175; Z25 and Z33 74154 (or 74HCT154); Z28 74LS139; Z29 and Z30 7416; Z31 7408; Z32 7417; Z36 4069. TC1 is a 40-pin 0.6" socket.
Systems
Related tips
- Which System 80 CPU board goes with which games
- System 80 and 80A CPU boards swap only with the matching U2/U3
- Reading the System 80 CPU DIP switches
- U2/U3 rules ROMs decide which system a CPU board runs
- System 80 CPU board revisions D102, D107 and D20869
- Swapping CPU boards between System 80, 80A and 80B
- Use exact chip types in the CPU clock circuit
- 6532 RIOT port pins on the System 80 CPU board
Source: Gottlieb System 80 Battery Corrosion Repair Components Kit