I'm installing my new Samsung The Premier LSP7T Smart 4K UHD ultra-short throw laser projector at home; projecting against a plain white wall. I oriented it correctly to obtain a perfect ratio & rectangular projection.
However, while the lower area results in a sharp projection, the upper area does not and text & images appear blurry.
I tried testing the projection screen through auto-diagnose (under maintenance section of settings), which resulted in the default shown test image having a yellow overlay line in the upper area. Not sure if this is related, since I do not see this yellow overlay line on other displays.
Anybody who can advice me what to do please?
