NEC VT46 user manual E-28, Common Problems & Solutions, Check These Items

Common Problems & Solutions

Problem	Check These Items
Does not turn on	• Check that the power cable is plugged in and that the power button on the projector cabinet or the remote
	control is on. See pages E-14 and 15.
	• Ensure that the lamp cover or lamp housing is installed correctly. See page E-25.
	• Check to see if the projector has overheated or the lamp has reached the end of its usable life. If there is
	insufficient ventilation around the projector or if the room where you’re presenting is particularly warm, move
	the projector to a cooler location.
No picture	• Use the RGB, VIDEO or S-VIDEO button on the cabinet or the SOURCE button on the remote control to select
	your source (RGB, Video or S-Video). See page E-15.
	• Ensure your cables are connected properly.
	• Use menus to adjust the brightness and contrast. See page E-21.
	• Remove the lens cap.
	• Reset the settings or adjustments to factory preset levels using “Factory Default” in the menu. See page E-24.
Image isn’t square to the	• Reposition the projector to improve its angle to the screen. See page E-16.
screen	• Use the Keystone correction function to correct the trapezoid distortion. See page E-21.
Picture is blurred	• Adjust the focus. See page E-16.
	• Reposition the projector to improve its angle to the screen. See page E-16.
	• Ensure that the distance between the projector and screen is within the adjustment range of the lens. See
	pages E-10 and 11.
	• Condensation may form on the lens if the projector is cold, brought into a warm place and is then turned on.
	Should this happen, let the projector stand until there is no condensation on the lens.
Image is scrolling verti-	• Use the RGB, VIDEO or S-VIDEO button on the cabinet or the SOURCE button on the remote control to select
cally, horizontally or	your source (RGB, Video or S-Video). See page E-15.
both
Remote control does	• Install new battery. See page E-9.
not work	• Make sure there are no obstacles between you and the projector.
	• Stand within 22 feet (7 m) of the projector. See page E-9.
Indicator is lit or blink-	• See the Power/Status/Lamp Indicator on page E-27.
ing
Cross color in RGB	• If Auto Adjust is off, turn it on or adjust the image manually with Horizontal / Vertical / Clock / Phase in the
mode	Advanced menu. See page E-24.

E-28