New to me light engine installed. Time to play with old one.
There appear to be 2 areas where adjustment screws to align the image live. Guessing here as well as guessing design is to set the image via these adjustments to factory spec and then end users can dial the image position in via service menu.
The first is an allen hex screw under one of the many lenses/mirror combinations. It looks to either just secure one of the lenses in place or move it up and down.
The second and where the two screws I asked about is in the image path and those screws adjust this rectangular lens. Would of course move it up or down and back and forth. I get a little lost in terms of the actual image path with all the mirrors, etc., but I'm pretty sure by this point the image is on its way to the main mirror/lens to be projected on to the screen. Clearly an adjustment whereas the allen screw maybe not.