DLA-4910 Image size problem
Hi - hoping someone can help me here!
I am installing a DLA 4910 and have run into a strange problem where the image is not square. No amount of adjustments seem to work. Here are the basics:
92" inch screen16:9
throw = 137"
ceiling mount, front. Projector is above screen, but totally within shift limits
When I use the lens control to adjust the image, the image box is not square. We did every adjustment possible with both lens control and the ceiling mount. We doubled checked to make sure there was not a manufacturing defect with the screen (it's right - 45 x 80, level, etc).
finally we measured the actual image outline in the lens control (the green lines used for focus, shift and zoom). We found that the left and right vertical lines (outer box) are not the same height - they are off by 1/2" . so facing the screen, the right hand side is 1/2" longer (lower) than the left hand side. Consequently there is no way to fit the image precisely in the 92" screen. we can get the top right, but then the bottom corner is way low, etcf.
I have contacted JVC support, and should get more info from them on Monday when there expert is in, but thought I'd post this on the chance that someone else has encountered this and it's a something simple. We did mess with the keystone setting, but it doesn't address the issue.
thanks for any help.