I have a 1272Q with 109 hours on it. I have never tried to set it up but I have a pdf manual and a copy of the mooneyass guide. The screen that I plan to use is a Draper Onyx, 50"x85". What aspect ratio is this? and do I need a scaler? I also have the sony PC-1271 switcher,with I believe line doubling,and a Runco tripler. How would you set this up? Thanks pwest