10Adjusting the Projection PositionBefore adjustingadjust the focus of the projected image.For information on how to project an image, see “Installation and Connections” and“ P rojectingan Image (Basic Operation)” in the user’s manual included with the projector.• From the on-screen menu, select "Ceiling Front" as the method of projection.1. Check the tilt adjust knobs.Verify that the four tilt adjust knobs are all set to the sameadjustment height.If the projector fixation plate is slanted, correct verticaladjustment and horizontal adjustment cannot be performed.Projector fixation plateKnob adjustment height2. Adjust the size of the projected image and the left/right tilt.* The illustrations in this manual show the adjustment for an image with a 4:3 aspect ratio.Connecting cables for screen and projector are omitted.Adjust the size of the projected image and, if necessary, the tilt in clockwise or anticlockwisedirection.Loosen the vertical adjust/arm fixation knobs.- Loosen the two knobs shown in black in the illustration.Move the projector back and forth to match the size ofthe projected image to the screen.To do this, grasp the projector firmly on both sides andmove it carefully.- To adjust tilt in the left/right direction, proceed to step.- If only size adjustment is to be performed, tighten thetwo knobs shown in black in the illustration.PreparationsProject an image from the projector, then rst use the focus lever of the projector to roughly