Archived from groups: rec.games.video.arcade.collecting (More info?
Ok.. I'll ask the supid question...
could you have installled it upside down?
> I have a Missile Command board I have had for over a month and just
> know got around to testing it on a jamma test rig. The game works
> fine, however the trackball movements are backwards. Up is down and
> left is right. I have the trackball hooked up correctly and used the
> pinouts from the schematics. Am I missing something here? Thanks