Hello, I've started using my trusty old SE again after many years collecting dust, and I've noticed that the screen flickers once in awhile (the display switches to a static of horizontal lines for a few moments), and the geometry is slightly off, so I decided to take the paper guard off the analog board and look at the solder joints. After reading plenty of posts here (thanks to all!), I suspected that the solder joints on the yoke connector might be a problem, and sure enough, one of the joints is brown and looks wrong (see pictures). I think this connector is the yoke connector, right? Its