I couldn’t believe it a little bit myself, for how bad those lines were, but that is exactly what it was. Once I started messing around with both vertical and horizontal sync, I got the picture back square and almost stationary. Except, no matter how fine of an adjustment I make, the screen still rolls. The lines are gone, so Mark’s fix worked just fine, but I can’t fix the vertical sync.
I made sure the card was seated, and adjusted everything but it still slowly rolls. I just replace the caps in that, what, a month ago, so those shouldn’t be an issue. I suppose the connection could be bad. Not sure what to do, need to have time to research a solution, but I suppose I could finalize one of my other two almost working monitors and swap them in. But then, I would still have this one that I would have to fix at some point….
Or I could just sell it. It mostly works and would just need a touch of tlc. I don’t know how desirable a 19K4600 Wells Gardner monitor is…
I got them earlier in the week, on Wednesday actually, but didn’t put them in until tonight. I had some time to kill while waiting for the buyer to arrive for the Space Invaders Deluxe, so I put them in the machine and tested it. I was so excited at the possibility of having that game fully working too and ready to sell.
Well, I got lines on the screen. I have no idea what that means, it is weird, fast horizontally moving lines. I wanted to check voltages before putting the boards in, and I got a pinout for the game, but wasn’t really sure because of the weird connections in the game if I should check them at the connection to the cage or at the connection to the one board.
I hope that wasn’t a mistake. I am going to email the guy that repaired them, he’ll probably know the problem, he is really knowledgeable. It almost looks like a sync issue, which is an easy enough fix if that were true. But it looks a little more serious than that.