Originally Posted by dazz87
I finally got my projector to align properly to my Elite "100 screen, now another issue that is driving me nuts. I finally was able to adjust the projector onto elite screen. The other night after watching a movie I turned off my projector for the night. Last night i fired up the projector and the image was all mess up. The focus were off and the image went beyond the screen. I thought it was weird cause both the screen and projector was not moved at all, I then went and adjusted the image again. This morning I turned it on and it was out of focus. The image this time was fine (test pattern match up with the screen) but it was out of focus. What could be causing the projector to lose the image after turning it off for the night? Both my plasma and projector is connected to a hdmi switcher. The switch is then connected to my Denon AVR-S700W. My projector sits on a stand behind my couch. Projector is about 11 feet from the screen. Projector is connected to my htpc with a intel 4000 card set to ycbcr444. Btw in order to align the image to the test pattern keystone has to be set at 4.
keystone at zero
keystone at 4
How high from floor to bottom of screen?
How high from floor to center of lens?
As for out if focus do you put the lens cap on when not in use, over night?
The easiest way to fix so you don't use keystone is.
Return keystone to 0 first like your first picture. Then lower the front of the PJ or raise the rear of the PJ. I know this will make the test pattern fall off the bottom of the screen. But you need to do this first.
After you get the 2 sides aligned with the sides (I know your image will be off the screen some at the bottom) then you have 2 options to move the image up.
1. Have you used the lens shift screw under that cover? If you have not turn that screw to make the whole image go up. If you cannot get the whole image up to the screen with out tilting the PJ then you need to raise the whole PJ up. Not by adjusting anything but whole elevation.
2. If you get the whole PJ up and it goes maybe an inch higher than the top just then adjust the screw lens shift down a little.
Right now your PJ is still to low and you are right now correcting it by tilting the PJ up by means of upping the front or lowering the back then adjusting keystone. I know it's hard to put it all together but once you see how it's done it will be supper easy any other time.
Right now basically the lens is not perfectly 90 degrees up and down with the screen. You right now are perfectly (or close ) to 90 degrees left and right if the screen.
Another way to measure for square is a piece of string and 2 people. One hold the string right at the top of the screen and other at the PJ center lens. Then have the person take the string now to the bottom of the screen. Where that same measurement intersects is where the center of lens should be. You can do this side to side also to get you in tinkering range.
I wish you were closer as I could show you easier than tell. But like I said once you do it you will see how easy it is. Right now that might not be clear.