Broken connector pins and rust. I have questions! (Stargate project)

[andykmv]

Provided you have neutralised any acid present on the board, apply solder to the exposed copper areas, then overpaint with green conformal coating - it provide electrical insulation etc and should give a close to original finish

 

[mitchschaft]

I was waiting on your links . I found some here: http://www.elexp.com/pro_gcop.htm

I scraped away all visible green stuff and poured vinegar all over that area and let it soak for a bit. Then rinsed it off. I hope that did the trick.

 

[RetroHacker]

Yeah, the key is simply to neutralize any remaining corrosive crud on the board, so it doesn't continue to corrode and spread over time. Tin any bare copper with solder, but beyond that, you don't need any "green stuff" - it's just there to protect and provide an insulator for the traces. This is a ground plane, it's hardly critical. If you want, you can paint it with a little clear nail polish as an insulator.

-Ian

 

[ELutz]

Don't forget to leave the area around the screw holes un-coated. The trace is supposed to make contact with the metal plate....to create a larger ground plane. (but I agree, the green stuff is unnecessary).

Edward

 

[RetroHacker]

Don't forget to leave the area around the screw holes un-coated. The trace is supposed to make contact with the metal plate....to create a larger ground plane. (but I agree, the green stuff is unnecessary).

And that larger ground plane is again unnecessary... but nice. The board was designed to be bolted to that metal plate, making good electrical contact, but it's not required, and it will work without it. But, since you have the plate, there is no reason not to make the electrical contact with it as designed. I think having that larger ground plane helps with RF noise and the like.

-Ian