Driver board A3-J4 coil outputs
A3-J4: lamps L36-L39 on pins 1-4 with their ground on 5; coil 5 on pin 6, coil 1 on 7, outhole (coil 9) on 8, coil 6 on 12 and coil 2 on 13; coil grounds on 9-11 and 14.
Systems
Related tips
- Control board A1-J4 to driver board pinout
- Driver board A3-J2 backbox lamps
- How driver board coil transistors are switched
- A driver board output is stuck on or dead
- A1-J4, A3-J1 and A3-J3 are double-sided edge connectors
- How the System 80 driver board is laid out
- How driver board lamp latches work
- Which transistor types sit where on the driver board
Source: System 80 Service Manual, Gottlieb