Quoted from Insane:
i am running a NiWumph driver and cpu board. But i will test all appropriate devices.
If you have lost a solenoid (it will no longer energize when it should), you will have to trace back the logic to the corresponding drive on the board. On the System 1 board, each drive circuit is protected by a zener diode, and they protect the CPU from a broken driver board. One good way to determine if you have blown one of these diodes in this case, is to remove it.
However, before doing so, it will be necessary to correct the problem that blew this circuit to begin with, because after removing the diode, the circuit protection is lost, and a damaged driver board will then blow ever more complex components. If, by removing the diode, you can restore solenoid operation, you can replace it with a 5v nominal zener diode. If this is not the case, check the operation of the 7416 inverters.