NEC VT37 manual Appendix, Problem Check These Items

	7. Appendix
Common Problems & Solutions (See also "Power/Status/Lamp Indicator" on page 49.)
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 18 and 19.
	• Ensure that the lamp cover is installed correctly. See page 47.
	• Check to see if the projector has overheated or the lamp usage exceeds 3100 hours (up to 4100 hours : Eco
	mode). If there is insufficient ventilation around the projector or if the room where you’re presenting is par-
	ticularly warm, move the projector to a cooler location.
	• The lamp may fail to light. Wait a full minute and then turn on the power again.
	• The lamp has reached the end of its usable life. Replace the lamp.
Will turn off	• Ensure that the Power Management is off. See page 41.
No picture	• Use the VIDEO, the S-VIDEO or the COMPUTER button on the remote control to select your source (Computer,
	Video or S-Video). See page 21. If there is still no picture, press the button again.
	• Ensure your cables are connected properly.
	• Use menus to adjust the brightness and contrast. See page 34.
	• Remove the lens cap.
	• Reset the settings or adjustments to factory preset levels using the “Default” in the Menu. See page 43.
	• Enter your registered keyword if the Security function is enabled. See page 38.
	• When using with a notebook PC, be sure to connect between the projector and the notebook PC before turning
	on the power to the notebook PC. In most cases signal cannot be output from RGB output unless the notebook
	PC is turned on after connecting with the projector.
	* If the screen goes blank while using your remote control, it may be the result of the computer's screen-
	saver or power management software.
	• See also the next page.
Picture suddenly	• When one of the following happens, the Lamp mode automatically changes from Normal to Eco.
becomes dark	* When there are no signals (blue or black screen) → To return to the Normal mode, select another available
	source.
	* When the image is muted using the PIC-MUTE button on the remote control → Press the PIC-MUTE button
	again to return to the Normal mode.
	* When the room where you' re presenting is particularly warm → Move the projector to a cooler location.
Color tone or hue is	• Check if an appropriate color is selected in "Wall Color". If so, select an appropriate option. See page 33.
unusual	• Adjust "Hue" in "Picture". See page 34.
Image isn’t square to	• Reposition the projector to improve its angle to the screen. See page 22.
the screen	• Use the Keystone correction function to correct the trapezoid distortion. See page 24.
Picture is blurred	• Adjust the focus. See page 23.
	• Reposition the projector to improve its angle to the screen. See page 22.
	• Ensure that the distance between the projector and screen is within the adjustment range of the lens. See page
	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	• Use the VIDEO, the S-VIDEO or the COMPUTER button on the remote control to select your source (Video, S-
vertically, horizontally	Video or Computer).
or both	See page 21.
	• Adjust the computer image manually with the Horizontal/Vertical in the “Advanced → Page 2”. See page 41.
Remote control does	• Install new batteries. See page 10.
not work	• Make sure there are no obstacles between you and the projector.
	• Stand within 22 feet (7 m) of the projector. See page 10.
Indicator is lit or	• See the POWER/STATUS/LAMP Indicator on page 49.
blinking
Cross color in RGB	• Press the AUTO ADJ. button on the projector cabinet or the remote control. See page 25.
mode	• When “Off” is selected in Auto Adjust, adjust the computer image manually with Clock/Phase in “Advanced →
	Page 2” in the menu. See pages 41 and 42.

For more information contact your dealer.

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