Common Problems & Solutions - NEC ME342U User Manual

Common Problems & Solutions
(→ "Power/Status/Lamp Indicator" on page 116.)
Problem Check These Items
Does not turn on or shut • Check that the power cord is plugged in and that the power button on the projector cabinet or the remote control is on.
down
• Ensure that the lamp cover is installed correctly. (→ page 113)
• Check to see if the projector has overheated. If there is insufficient ventilation around the projector or if the room where
• Check to see if you continue to use the projector for another 100 hours after the lamp has reached the end of its life. If
• The lamp may fail to light. Wait a full minute and then turn on the power again.
• Set [FAN MODE] to [HIGH ALTITUDE] when using the projector at altitudes approximately 5500 feet/1700 meters or higher.
Will turn off • Ensure that the [OFF TIMER] or [AUTO POWER OFF] is off. (→ page 64, 72)
No picture • Use the COMPUTER, HDMI1, HDMI2, VIDEO, USB-A, USB-B or APPS button on the remote control to select your source
• Ensure your cables are connected properly.
• Use menus to adjust the brightness and contrast. (→ page 57)
• Reset the settings or adjustments to factory preset levels using the [RESET] in the Menu. (→ page 77)
• Enter your registered keyword if the Security function is enabled. (→ page 30)
• Be sure to connect the projector and notebook PC while the projector is in standby mode and before turning on the power
• See also the
Picture suddenly
• Check if the projector is in the Forced ECO mode because of too high ambient temperature. (→ page 69)
becomes dark
Color tone or hue is
• Check if an appropriate color is selected in [WALL COLOR]. If so, select an appropriate option. (→ page 64)
unusual
• Adjust [HUE] in [PICTURE]. (→ page 57)
Image isn't square to the • Reposition the projector to improve its angle to the screen. (→ page 15, 16)
screen
• Use the Keystone correction function to correct the trapezoid distortion. (→ page 18)
Picture is blurred • Adjust the focus. (→ page 17)
• Reposition the projector to improve its angle to the screen. (→ page 15, 16)
• Ensure that the distance between the projector and screen is within the adjustment range. (→ page 85)
• Condensation may form on the lens if the projector is cold, brought into a warm place and is then turned on. Should this
Flicker appears on screen • Set [FAN MODE] to other than [HIGH ALTITUDE] mode when using the projector at altitudes approximately 5500 feet/1700 meters
Image is scrolling verti- • Check the computer's resolution and frequency. Make sure that the resolution you are trying to display is supported by
cally, horizontally or both
• Adjust the computer image manually with the Horizontal/Vertical in the [IMAGE OPTIONS]. (→ page 59)
Remote control does not
• Install new batteries. (→ page 9)
work
• Make sure there are no obstacles between you and the projector.
• Stand within 22 feet (7 m) of the projector. (→ page 9)
Indicator is lit or blinking
• See the POWER/STATUS/LAMP Indicator. (→ page 116)
Cross color in RGB mode • Press the AUTO ADJ. button on the projector cabinet or the remote control. (→ page 20)
• Adjust the computer image manually with [CLOCK]/[PHASE] in [IMAGE OPTIONS] in the menu. (→ page 58)
For more information contact your dealer.
(→ pages 11, 12)
you are presenting is particularly warm, move the projector to a cooler location�
so, replace the lamp� After replacing the lamp, reset the lamp hours used� (→ page 77)
Using the projector at altitudes approximately 5500 feet/1700 meters or higher without setting to [HIGH ALTITUDE] can
cause the projector to overheat and the projector could shut down� If this happens, wait a couple minutes and turn on
the projector� (→ page 69)
If you turn on the projector immediately after the lamp is turned off, the fans run without displaying an image for some
time and then the projector will display the image� Wait for a moment�
(COMPUTER, HDMI1, HDMI2, VIDEO, USB-A, LAN or USB-B)� (→ page 14) If there is still no picture, press the button again�
to the notebook PC�
In most cases the output signal from the notebook PC is not turned on unless connected to the projector before being
powered up�
* 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�
next page�
happen, let the projector stand until there is no condensation on the lens�
or lower� Using the projector at altitudes less than approximately 5500 feet/1700 meters and setting to [HIGH ALTITUDE] can cause
the lamp to overcool, causing the image to flicker� Switch [FAN MODE] to [AUTO]� (→ page 69)
the projector� (→ page 127)
120
9. Appendix