NEC LT154, LT155 Troubleshooting, Power/ Status Light Messages, Common Problems & Solutions

5. TROUBLESHOOTING

This section helps you resolve problems you may encounter while setting up or using the projector.

Power/ Status Light Messages

Condition	Power Indicator	Status Indicator	Note
Standby	Steady orange	–	–
Cooling down	Blinking green	–	Blinks green for 60 seconds
Lamp in High-Bright mode	Steady green	–	–
Lamp in Eco mode	Steady green	Steady green	–
One minute after lamp is turned on	Steady green	Blinking green	Fixed at High-Bright mode. Lamp mode
in Eco mode			can be changed on the menu
Lamp has reached its end of life	Steady green	Steady red (High-Bright mode)/	Message appears on screen during 1000-
(1000 hours or over)		Steady orange (Eco mode)	1100 hours of lamp usage. The projector
			reaches its end of life. Please replace the
			lamp as soon as possible.
Lamp life has reached its end of life	Steady orange	Steady red	The projector is in standby mode and can-
(1100 hours or over)			not be turned on.
Lamp or filter cover error (2 locations)	Steady orange	Blinking red (1 sec interval)	The projector is in standby mode and can-
			not be turned on.
Temperature error	Steady orange	Blinking red (4 sec interval)	The projector is in standby mode and can-
			not be turned on.
Fan error	Steady orange	Blinking red (8 sec interval)	The projector is in standby mode and can-
			not be turned on.
Lamp error	Steady orange	Blinking red (12 sec interval)	The projector is in standby mode and can-
			not be turned on.

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.
	• Ensure that the lamp cover is installed correctly. See page E-48.
	•	Check to see if the projector has overheated or the lamp usage exceeds 1100 hours (2200 hours in Eco
		mode). If there is insufficient ventilation around the projector or if the room where you’re presenting is particu-
		larly warm, move the projector to a cooler location.
No picture	•	Use the menu to select your source (Video, S-Video, RGB or PC Card Viewer). See page E-33.
	• Ensure your cables are connected properly.
	• Use menus to adjust the brightness and contrast. See page E-33.
	• Remove the lens cap.
	•	Reset the settings or adjustments to factory preset levels using the Factory Default on the Image Options
		Menu in Advanced menu. See page E-36.
Image isn’t square to the	•	Reposition the projector to improve its angle to the screen. See page E-25.
screen	•	Use the Keystone to correct the trapezoid distortion. See page E-29 or 34.
Picture is blurred	•	Adjust the focus. See page E-25.
	• Reposition the projector to improve its angle to the screen. See page E-25.
	• Ensure that the distance between the projector and screen is within the adjustment range of the lens. See
		page E-16.
Image is scrolling vertically,	•	Use menus or a source button on the remote control or the cabinet to select the source you want to input.
horizontally or both
Remote control does not	•	Install new batteries. See page E-13.
work	•	Make sure there are no obstacles between you and the projector.
	• Stand within 22 feet (7 m) of the projector. See page E-13.
	• Make sure that you are in the Projector mode or the PJ button lights in red. If not, press the PJ button.
Status indicator is lit or blink-	•	See the Power/ Status Light messages above.
ing
Cross color in RGB mode	•	If Auto Adjust is off, turn it on. If Auto Adjust is on, turn it off and balance the image with the Position and Clock
		Adjust on the Advanced Options Menu. See page E-35.

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