On Thu, Apr 07, 2016, Seth Morabito wrote: > > Hey folks, > > I've been on a tear trying to resurrect old projects here, and next on > the list is an ADM 3a. > > This particular 3a has no horizontal scan. None at all. I just get a > vertical line down the center of the screen. First thing I checked was > the horizontal deflector on the yoke, which seems secure. > > Before I go diving into the schematics, I figured I'd ask here: Is > this a common failure mode? Has anyone else experienced no horizontal > scan on a 3a? Any tips on where to look first?
Is this the same one that was showing all exclamation points on every other line? -- Eric Christopherson