Quoted from TheNoTrashCougar:Very interesting. When you get this running, I would definitely think it would be a cool write-up to read. The System 11 boardset would seem like a better option in terms of reliability compared to System 9.
The system 9 board is very close to a system 11 board. The sound section is a bit different and the ROM sizes are different.
Actually a system 3-7 board really isnt all that much different than system 9. The driver board is just combined with the MPU. Lamps, switches, solenoids, are all driven in the same way.
Meggett, SC
