I'm working on a Gerber 408 for a customer that doesn't recognize when a job is sent to it. Everything else seems to be working correctly. I can align the machine, run the test job, passes the keyboard coms test. Spindle works.

I looked online and at the service manual and thought for sure it was the single UART board. So I changed UART's slot, ohm'd out the serial cable, rebuilt the card minus the PLA Chip, and tried a new board from Gerber as I was sure it was that, and it wasn't.

If it were up to me the 408 would be running LinuxCNC like yesterday, but the customer wants to use the Gerber Software.

Any ideas would be extremely helpful.