Quote:
Originally Posted by domingos38 
does ceiling mounting ruin the convergence?
does ceiling mounting ruin the convergence?
Quote:
Originally Posted by Kirnak
I discovered something about the problem with inverting some 5020/6020s. Some people have reported problems, which may not have been problems in some cases.
When you adjust the pixel convergence, you tell the red pixels to go up. (For instance.) When you invert the screen, up becomes down. However, the pixel alignment is still telling the red pixels to go up. Except that Up is now down, so the alignment adjustment is now telling the pixels to go exactly the wrong direction. So instead of aligning the pixels, the adjustment you had is un-aligning the pixels. Am I making sense? I tested this by not moving the projector, but changed the projection setting back to "Front" from "Front/Ceiling". Sure enough the pixels went out of alignment.
So, if you test a 50020/6020 on a bench before you ceiling mount it, and if you enable "LCD Alignment" while testing on that bench, and then you ceiling mount it, it's going to look like something moved inside because the convergence will now be horrible. The solution is to "reset" the LCD Alignment and start over.
Hopefully this information will help some people.
I discovered something about the problem with inverting some 5020/6020s. Some people have reported problems, which may not have been problems in some cases.
When you adjust the pixel convergence, you tell the red pixels to go up. (For instance.) When you invert the screen, up becomes down. However, the pixel alignment is still telling the red pixels to go up. Except that Up is now down, so the alignment adjustment is now telling the pixels to go exactly the wrong direction. So instead of aligning the pixels, the adjustment you had is un-aligning the pixels. Am I making sense? I tested this by not moving the projector, but changed the projection setting back to "Front" from "Front/Ceiling". Sure enough the pixels went out of alignment.
So, if you test a 50020/6020 on a bench before you ceiling mount it, and if you enable "LCD Alignment" while testing on that bench, and then you ceiling mount it, it's going to look like something moved inside because the convergence will now be horrible. The solution is to "reset" the LCD Alignment and start over.
Hopefully this information will help some people.
Actually though, you should reset even a brand new PJ if you ceiling mount it. Some PJs are tested by Epson and adjusted. This is done with the PJ right side up on a bench. The only way to know that you are looking at actual convergence, is to turn off LCD alignment. Resetting before adjustment ensures that none of the squares have an adjustment left over from Epson.
