When i power up my flash gordon pin, it boots up fine and the displays come on, after about a minute or so they go out, checking the voltage on the solenoid driver board at TP4 i have 230 volts dc and at TP2, the voltage starts at 170 volts dc and slowly decreases, when it hits about 140 volts, the displays go out, anyone have any ideas

Thanks for the replies, the easiest thing to do would be to just swap out the solenoid driver board and i have several spares, the problem is someone, not me, did a hack job on connector j3 and soldered a wired connector directly to the board and it is no longer plug and play, so it looks like i have to rebuild the hv section of that board or rewire the connector