You will find the full manual here, we will additionally collect some important excerpts here.
Factory Defaults
MENU: PROJECTOR SETUP > INITIALIZE ALL
Sometimes it comes in handy to reset the projector to its factory defaults, this excerpt from p. 63 explains how to do so.
Projection Method
MENU: PROJECTOR SETUP > PROJECTION METHOD
While setting up it is important to select the right projection method. We do not recommend the AUTO mode, usually FRONT/CEILING is the right one.
Zoom, Focus and Shift
You have two levers on the lens to adjust the focus and zoom of the projection. Furthermore, there are two dials to shift the projected image.
Remote Control Setup
Corner Correction
MENU: POSITION > SCREEN ADJUSTMENT > CORNER CORRECTION
Please do not use Keystone but solely Corner Correction to adjust your Image