NEC LT260, LT240 user manual Common Problems & Solutions, Problem Check These Items

TROUBLESHOOTING

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-36 and 37.
	• Ensure that the lamp cover is installed correctly. See page E-120.
	• Check to see if the projector has overheated or the lamp usage exceeds 1600 hours
	(up to 2100 hours : Eco mode). If there is insufficient ventilation around the projec-
	tor or if the room where you’re presenting is particularly warm, move the projector
	to a cooler location.
No picture	• Use the menu to select your source (RGB 1/2, Video, S-Video, Viewer or LAN). See
	page E-40.
	• Ensure your cables are connected properly.
	• Use menus to adjust the brightness and contrast. See page E-85.
	• Remove the lens cap.
	• Reset the settings or adjustments to factory preset levels using the Factory Default
	in the Adjustment Menu. See page E-117.
Image isn’t square to the	• Reposition the projector to improve its angle to the screen. See page E-42 or 43.
screen	• Use the 3DReform function to correct the trapezoid distortion. See page E-45.
Picture is blurred	• Adjust the focus. See page E-44.
	• Reposition the projector to improve its angle to the screen. See page E-42 or 43.
	• Ensure that the distance between the projector and screen is within the adjustment
	range of the lens. See page E-22-26.
	• 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 menus or Source button on the remote control or the cabinet to select the
cally, horizontally or	source you want to input.
both
Remote control does	• Install new batteries. See page E-19.
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-20.
	• Make sure that you are in the Projector mode and the PJ button lights in red. If not,
	press the PJ button. See page E-53.
Indicator is lit or blink-	• See the Status Indicator on pages E-123 and 124.
ing
Cross color in RGB	• If Auto Adjust is off, turn it on or adjust the image manually with the Position/Clock
mode	in the Image Options. See pages E-87, 88 and 98.
USB mouse does not	• Make sure that your USB mouse is properly connected to the projector.
work	The projector may not support some brands of a USB mouse.

E-125