That is correct, the “C” and “D” terminals.Are you talking about the pins marked as "C" and "D"? That could be a switch, IDK.
As for all of your input on the delay, I turned the power on, and nothing. No flicker, nothing, nada. I might try shorting those terminals on the connector and see what it does. Unless, that is, someone knows how to operate this board and can tell me what to do.
I may try replacing the laser tube with another one if nothing else works(I found four additional ones), though a couple have tiny chips out of the main lense sides. Nothing catastrophic, but still deadly if the tubes were to be powered on since the laser beam could be diffracted into an unwanted direction, e.g. in an area that safety glasses do not cover - So I’m not going to use those ones. Just the ones with intact, clean lenses.
If after all of this pain and nothing happens still, I’ll just give in and buy a driver off of eBay.