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2. Projecting an Image (Basic Operation)

❻ Correcting Keystone Distortion [KEYSTONE]

You may adjust keystone distortion of image in your projector with the V keystone adjustment. Follow steps below

to adjust keystone distortion of projected image manually.

Press the KEYSTONE button on your remote controller. The keystone adjustment dialog box displays ( including

H/V keystone, 4-Corner correction, 6-Corner correction, Curved correction, Grid Image Tune, Reset) , press ▲▼◀

▶button to adjust keystone distortion.

You may save your settings for keystone adjustment.

• H/V Keystone......Adjust the projected image when the projector is on the horizontal or vertical keystone distortion.

• 4-Corner correction......Adjust the projected image when the projector is keystone distortion of four corners .

• 6-Corner correction......Adjust the projected image when the projector is keystone distortion of four corners.

• Curved correction......Adjust the projected image when the projector linearity is uneven or the projected images

bent vertically and horizontally.

• Grid Image Tune......Adjust the local points of the projected image.

• Reset......The correction values will be restored to the factory defaults.

NOTE:

• The arrow mark looks white when there is no keystone adjustment in existence.

• The arrow mark indicating the adjustment direction turns red.

• The arrow mark disappears when the maximum adjustment limit reaches.

• The keystone prompt box will disappear if you press the keystone button again when it is displaying. Press the ENTER button again to

switch the four correction items.

• The adjustable range is subject to source of signal input.

• For further details about Keystone function, please turn to page 44-48.

• When using the VIEWER, you cannot use ▼ button on the panel to directly call up the keystone correction menu.

H/V Keystone

4-Corner correction

6-Corner correction

Curved correction

Grid Image Tune

Reset value

• Only for ME403U

H/V Keystone

4-Corner correction

Reset value

• Only for ME423W/ME383W/MC423W/MC393W/ME453X/MC453X.

Questions and Answers:

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NEC MC453X Specifications

General

Native aspect ratio	4:3
Projection distance	0.9 - 10.9 m
Vertical scan range	50 - 120 Hz
Horizontal scan range	15 - 100 kHz
Projection technology	LCD
Contrast ratio (typical)	16000:1
Screen size compatibility	30 - 300 \
Projector native resolution	XGA (1024x768)
Keystone correction, horizontal	-30 - 30 °
RMS rated power	16 W
Number of built-in speakers	1
Placement	Ceiling, Floor
Product type	Standard throw projector
Product color	White
Cable lock slot type	Kensington
Lamp power	240 W
Lamps quantity	1 lamp(s)
Light source type	Lamp
Lamp power (economic mode)	150 W
Service life of light source	10000 h
Service life of light source (economic mode)	20000 h
Built-in display	-
Focus	Manual
Throw ratio	1.5 - 1.8:1
Focal length range	19.158 - 23.018 mm
Aperture range (F-F)	1.6 - 1.76
Power source	AC
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (max)	320 W
Power consumption (standby)	0.5 W
Power consumption (typical)	305 W
Power consumption (economy mode)	215 W
Power consumption (network standby)	2 W
Noise level	37 dB
Certification	UL, FCC Part15 Class B, CAN/CSA, ICES-003 Issue 6
Noise level (economic mode)	29 dB
Full HD	No
Supported video modes	480i, 480p, 576i, 576p, 720p, 1080i, 1080p
Analog signal format system	Not supported
Supported graphics resolutions	640 x 480 (VGA), 800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1400 x 1050 (SXGA+), 1600 x 1200 (UXGA), 1920 x 1200 (WUXGA)
Serial interface type	RS-232
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Ethernet LAN data rates	10, 100 Mbit/s
Storage temperature (T-T)	-10 - 50 °C
Operating temperature (T-T)	5 - 40 °C
Operating relative humidity (H-H)	20 - 80 %
Remote control type	IR