Common Problems & Solutions - NEC NP-M271X User Manual

Common Problems & Solutions
(→ "Power/Status/Lamp Indicator" on page 122.)
Problem Check These Items
Does not turn on • Check that the power cord is plugged in and that the power button on the projector cabinet or the remote control
or shut down
• Ensure that the lamp cover is installed correctly. (→ page 119)
• Check to see if the projector has overheated. If there is insufficient ventilation around the projector or if the room
• Check to see if you continue to use the projector for another 100 hours after the lamp has reached the end of its
• 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/1600 meters
Will turn off • Ensure that the [OFF TIMER] or [AUTO POWER OFF] is off. (→ page 85, 92)
No picture • Use the COMPUTER1, the COMPUTER2, the VIDEO or the S-VIDEO button on the remote control to select your
• Ensure your cables are connected properly.
• Use menus to adjust the brightness and contrast. (→ page 78)
• Ensure that the lens cover is open. (→ page 5)
• Reset the settings or adjustments to factory preset levels using the [RESET] in the Menu. (→ page 99)
• Enter your registered keyword if the Security function is enabled. (→ page 29)
• Be sure to connect the projector and notebook PC while the projector is in standby mode and before turning on
• See also the
Picture suddenly be- • Check if the projector is in the Forced ECO mode because of too high ambient temperature. If this is the case,
comes dark
Color tone or hue is un- • Check if an appropriate color is selected in [WALL COLOR]. If so, select an appropriate option. (→ page 84)
usual • Adjust [HUE] in [PICTURE]. (→ page 78)
Image isn't square to the • Reposition the projector to improve its angle to the screen. (→ page 18)
screen • Use the Keystone correction function to correct the trapezoid distortion. (→ page 21)
Picture is blurred • Adjust the focus. (→ page 20)
• Reposition the projector to improve its angle to the screen. (→ page 18)
• Ensure that the distance between the projector and screen is within the adjustment range of the lens.
• Condensation may form on the lens if the projector is cold, brought into a warm place and is then turned on.
F l i c k e r a p p e a r s o n • Set [FAN MODE] to other than [HIGH ALTITUDE] mode when using the projector at altitudes approximately 5500 feet/1600
screen
Image is scrolling ver- • Check the computer's resolution and frequency. Make sure that the resolution you are trying to display is supported
tically, horizontally or
both • Adjust the computer image manually with the Horizontal/Vertical in the [IMAGE OPTIONS]. (→ page 80)
Remote control does • Install new batteries.(→ page 9)
not 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 blink- • See the POWER/STATUS/LAMP Indicator. (→ page 122)
ing
Cross color in RGB • Press the AUTO ADJ. button on the projector cabinet or the remote control. (→ page 23)
mode • Adjust the computer image manually with [CLOCK]/[PHASE] in [IMAGE OPTIONS] in the menu. (→ page 79)
For more information contact your dealer.
is on� (→ pages 14, 15)
where you are presenting is particularly warm, move the projector to a cooler location�
life� If so, replace the lamp� After replacing the lamp, reset the lamp hours used� (→ page 117)
or higher� Using the projector at altitudes approximately 5500 feet/1600 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 89)
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�
source (Computer, Video or S-Video)� (→ page 17) If there is still no picture, press the button again�
the power 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�
lower the internal temperature of the projector by selecting [HIGH] for [FAN MODE]� (→ page 89)
(→ page 102)
Should this happen, let the projector stand until there is no condensation on the lens�
meters or lower� Using the projector at altitudes less than approximately 5500 feet/1600 meters and setting to [HIGH ALTI-
TUDE] can cause the lamp to overcool, causing the image to flicker� Switch [FAN MODE] to [AUTO]� (→ page 89)
by the projector� (→ page 129)
123
8. Appendix