NEC VT615 User Manual page 146

Common Problems & Solutions (See also "Power/Status/Lamp Indicator" on page 138.)
Problem
Does not turn on • Check that the power cable is plugged in and that the power button on the projector cabinet or the remote
• Ensure that the lamp cover is installed correctly. See page 136.
• Check to see if the projector has overheated or the lamp usage exceeds 2100 hours (up to 4100 hours : Eco
• If you turn on the projector immediately after the lamp is turned off or when the temperature is high, the fans
• 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. See page 134.
Will turn off • Ensure that the Power Management is off. See page 120.
No picture • Use the SOURCE button on the projector cabinet or the COMPUTER, VIDEO or VIEWER button on the remote
• Ensure your cables are connected properly.
• Use menus to adjust the brightness and contrast. See page 88.
• Open the mirror cover. See page 6.
• Reset the settings or adjustments to factory preset levels using the Reset in the Menu. See page 129.
• Enter your registered keyword if the Security function is enabled. See page 60.
• When using with a notebook PC, be sure to connect between the projector and the notebook PC before turning
• See also the next page.
Color tone or hue is • Check if an appropriate color is selected in "Wall Color". If so, select an appropriate option. See page 89.
unusual • Adjust "Hue" in "Adjust". See page 89.
Image isn't square to • Reposition the projector to improve its angle to the screen. See page 33.
the screen • Use the 3DReform function to correct the trapezoid distortion. See page 99.
Picture is blurred • Adjust the focus. See page 35.
• Reposition the projector to improve its angle to the screen. See page 33.
• Ensure that the distance between the projector and screen is within the adjustment range of the lens. See page
• Condensation may form on the mirror if the projector is cold, brought into a warm place and is then turned on.
Image is scrolling • Use the SOURCE button on the projector cabinet or the COMPUTER, VIDEO or VIEWER button on the remote
vertically, horizontally
• Adjust the computer image manually with the "Clock"/"Phase" in "Adjust" → "Image Options". See page 95.
or both
Remote control does • Install new batteries. See page 12.
not work • Make sure there are no obstacles between you and the projector.
• Stand within 22 feet (7 m) of the projector. See page 12.
Indicator is lit or • See the POWER/STATUS/LAMP Indicator on page 138.
blinking
Check These Items
control is on. See pages 29 and 31.
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.
run without displaying an image for some time and then the projector will display the image. Wait for a
moment.
After replacing the lamp, press and hold the HELP button on the remote control for a minimum of 10 seconds
to clear the lamp usage time. This will allow you to turn on the projector.
control to select your source. See page 40.
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.
* If you accidentally hit the POWER button on the remote control, wait 90 seconds and then press the POWER
button again to resume.
16.
Should this happen, let the projector stand until there is no condensation on the mirror.
control to select your source (Video, S-Video, Computer, Viewer or LAN). See page 40.
139
8. Appendix