Control board A1-J1 power connector
A1-J1 has +5 V on pins 1 and 2, ground on pins 4 and 5, and pin 3 spare. Both are 18 gauge (688 for +5 V, 54 for ground).
Systems
Related tips
- Control board A1-J4 to driver board pinout
- Switch matrix connectors A1-J5 and A1-J6
- Control board power-on checks
- A1-J4, A3-J1 and A3-J3 are double-sided edge connectors
- Power supply connectors A2-J1, J2 and J3
- System 80 control board chips
- How the control board reset circuit works
- Control board clock frequency
Source: System 80 Service Manual, Gottlieb