NEC NP-VE281 REPLACED BY NP-VE303 2800-Lumen High-Brightness Mobile Projector

User Manual - Page 77

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68
7. Appendix
Common Problems & Solutions ( “Power/Status/Lamp Indicator” on page 67.)
Problem Check These Items
Does not turn on
or shut down
Check that the power cord is plugged in and that the power button on the projector cabinet or the remote control
is on. ( pages 16 and 17)
Check to see if the projector has overheated. If there is insufcient ventilation around the projector or if the
room where you are presenting is particularly 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.
Set [FAN MODE] to [HIGH ALTITUDE] when using the projector at altitudes approximately 1200 meters/4000
feet or higher. Using the projector at altitudes approximately 1200 meters/4000 feet 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 57)
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.
Will turn off
Ensure that the [AUTO POWER OFF] is off. ( page 54, 60)
No picture Use the COMPUTER or the VIDEO button on the remote control to select your source (Computer or Video).
( page 19) If there is still no picture, press the button again.
Ensure your cables are connected properly.
Use menus to adjust the brightness and contrast. ( page 48)
Reset the settings or adjustments to factory preset levels using the [RESET] in the Menu. (
page 64)
Be sure to connect the projector and notebook PC while the projector is in standby mode and before turning
on 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.
See also the next page.
Picture suddenly
becomes dark
Check if the projector is in the Forced ECO mode because of too high ambient temperature. If this is the case, lower
the internal temperature of the projector by selecting [HIGH] for [FAN MODE]. (
page 57)
Color tone or hue is
unusual
Check if an appropriate color is selected in [WALL COLOR]. If so, select an appropriate option. (
page 53)
Adjust [HUE] in [PICTURE]. ( page 47)
Image isn’t square to the
screen
Reposition the projector to improve its angle to the screen. ( page 20)
Use the Keystone correction function to correct the trapezoid distortion. ( page 23)
Picture is blurred
Adjust the focus. ( page 22)
Reposition the projector to improve its angle to the screen. ( page 20)
Ensure that the distance between the projector and screen is within the adjustment range of the lens.
( page 10)
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.
Flicker appears on
screen
Set [FAN MODE] to other than [HIGH ALTITUDE] mode when using the projector at altitudes approximately
1200 meters/4000 feet or lower. Using the projector at altitudes less than approximately 1200 meters/4000 feet
and setting to [HIGH ALTITUDE] can cause the lamp to overcool, causing the image to icker. Switch [FAN
MODE] to [AUTO]. ( page
57
)
Image is scrolling
vertically, horizontally
or both
Check the computer's resolution and frequency. Make sure that the resolution you are trying to display is
supported by the projector. ( page 74)
Adjust the computer image manually with the Horizontal/Vertical in the [IMAGE OPTIONS]. (
page 50)
Remote control does
not work
Install new batteries.( page 8)
Make sure there are no obstacles between you and the projector.
Stand within 22 feet (7 m) of the projector. ( page 8)
Indicator is lit or blinking
See the POWER/STATUS/LAMP Indicator. ( page 67)
Cross color in RGB
mode
Press the AUTO ADJ. button on the projector cabinet or the remote control. ( page 25)
Adjust the computer image manually with [CLOCK]/[PHASE] in [IMAGE OPTIONS] in the menu. ( page
49)
Cannot control the
projector from external
equipment
Check to see if [STANDBY MODE] is set to [NORMAL] and if it is, try to set it to [NETWORK STANDBY]. (
page 59)
3D picture is not display See "Troubleshooting on viewing 3D images" on page 42.
For more information contact your dealer.
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