Quoted from DropTarget:
Well, It's not exactly working, But the displays power up.
I cleaned and neutralized the CPU. I re-pinned A2J1.
I was still not getting high voltage, and now the +5V output was intermittent. Then I noticed that pin 7 on the input header was pushed in about an 1/8th of an inch. I pulled it out, and voilÀ.
I had given up and ordered a new Power supply, then figured this out about 5 10 minutes later. I went to cancel the new power supply, but tit had already shipped. I'm trying to decide to put in the replacement or keep the game original. I guess I'll keep it original if the CPU is good. If I have to replace it, I may as well replay both.
I won't get around to re-pinning the other connectors until sometime next week.
Stay tuned, and thanks for the support/help.
Power supply board, or transformer? The cost of the new power board isn't too bad. You probably would want to rebuild the old one anyway. IMO sys1 can have a finicky power board, so it isn't a bad idea to use the new one...unless you would rebuild the old.