Common Problems & Solutions - NEC VT46 User Manual

Common Problems & Solutions
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 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
No picture • Use the RGB, VIDEO or S-VIDEO button on the cabinet or the SOURCE button on the remote control to select
• 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
• Condensation may form on the lens if the projector is cold, brought into a warm place and is then turned on.
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
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
Check These Items
control is on. See pages E-14 and 15.
insufficient ventilation around the projector or if the room where you're presenting is particularly warm, move
the projector to a cooler location.
your source (RGB, Video or S-Video). See page E-15.
pages E-10 and 11.
Should this happen, let the projector stand until there is no condensation on the lens.
your source (RGB, Video or S-Video). See page E-15.
Advanced menu. See page E-24.
E-28