NEC NP-PX803UL-BK Users Manual - Page 122

[GEOMETRIC CORRECTION] 5. Using On-Screen Menu KEYSTONE Display the trapezoid correction screen and adjust the trapezoidal distortion of the projection screen. To display the [KEYSTONE] screen, select → [DISPLAY] → [GEOMETRIC CORRECTION] → [KEYSTONE] in the on-screen menu. The [GEOMETRIC CORRECTION] screen can also be displayed by pressing the 3D REFORM button on the remote control. HORIZONTAL Adjustments when projecting from a diagonal direction to the screen. VERTICAL Adjustments when projecting from the top or bottom direction to the screen. TILT Adjusts the distortion when performing trapezoidal correction with the screen moved in the vertical direction using the lens shift. THROW RATIO Adjusts according to the projection ratio of the optional lens used. Model name of lens unit NP16FL NP17ZL NP18ZL NP19ZL NP20ZL NP21ZL NP31ZL NP39ML Adjustment range 7-8 12-18 17-23 21-37 34-55 50-85 7-10 4 NOTE: • When power is supplied to the device, the adjustment value of the [KEYSTONE] used previously is retained even if the gradient of the device is changed. • When clearing the adjustment value of [KEYSTONE], press the 3D REFORM button for 2 or more seconds. • When setting other [GEOMETRIC CORRECTION] functions, the [KEYSTONE] menu cannot be selected. When performing trapezoidal correction, press the 3D REFORM button for 2 or more seconds to clear the adjustment value of [GEOMETRIC CORRECTION]. • As electrical correction is carried out by [KEYSTONE], the brightness may be reduced or the screen quality may deteriorate sometimes. 105