Troubleshooting a busted mainboard

[Eugene Plavskin]

We're using a mainboard that seems to have stopped responding and we're wondering if there's a good protocol for troubleshooting what might be wrong (rather than making a new one from scratch). The mainboard is still supplying power to the OD boards (both stirring and lasers work), but does not seem capable of sending/receiving any data. The pinch valves and motor do not respond, and no OD data comes in; we've also tried just running clo and sel commands to activate the pinch valves, but they do not respond. Any ideas of where we might go from here?

Thank you,

- Eugene

[Chris Takahashi]

Are you able to program the mainboard?  Unfortunately, It sounds like it's either the microcontroller or the oscillator is bad.