Should you correct production mistakes?

It was wroking when I lat used the terminal some 20 years ago (and it was an old unit then). But I am not the sort of person to apply power to somethign that's not been run in 20 years without checking it over first. So I can't be sure it's still working. I can be sure (and am sure -- I've tested it ) that this pin is is correctly grounded even though its' not going through the hole. If the conenction failed, then the output of this circuit would become a TTL high, I guess. Dure to an iverter on the board, this would turn off the horizontla drive transistor. Sinec the output of that is transfoemr coupled to the horizontal output transistor, that would be turend off (no change in drive form the driver transsitor -> no base current in the output stage). At which point I'd loose all the CRT voltages, but there would be no damage. One thing that had worreid me was that in some video boards if there was a failure of the horizotnal drive sircuit then the ouput transitor could be turned on, leading to damage to it and/or the flyback transfotmer. The former would be a pain, the latter would be a very large pain! But this doesn't apply here. On the other hand, I know it's an erorr. And getting to it involves dismantling most of the terminal, including disconnecting the EHT connector form the CRT. So I'd rather not have to keep on removing this PCB. -tony