Appendix – NEC NP110 User Manual
Page 78
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7. Appendix
Common Problems & Solutions (
→ “Power/Status/Lamp Indicator” on page
Problem
Check These Items
Does not turn on
or shut down
• Check that the power cable is plugged in and that the power button on the projector cabinet or the remote
control is on. (
→ pages
)
• Ensure that the lamp cover is installed correctly. (
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• Check to see if the projector has overheated. If there is insufficient ventilation around the projector or if
the room where you are presenting is particularly warm, move the projector to a cooler location.
• 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 so, replace the lamp. After replacing the lamp, reset the lamp hours used. (
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• 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. 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. (
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)
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 [OFF TIMER] or [AUTO POWER OFF] is off. (
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No picture
• Use the COMPUTER1, the VIDEO or the S-VIDEO button on the remote control to select your source
(Computer, Video or S-Video). (
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) If there is still no picture, press the button again.
• Ensure your cables are connected properly.
• Use menus to adjust the brightness and contrast. (
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)
• Remove the lens cap.
• Reset the settings or adjustments to factory preset levels using the [RESET] in the Menu. (
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)
• Enter your registered keyword if the Security function is enabled. (
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)
• 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
.
Picture suddenly be-
comes 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]. (
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)
Color tone or hue is
unusual
• Check if an appropriate color is selected in [WALL COLOR]. If so, select an appropriate option. (
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• Adjust [HUE] in [PICTURE]. (
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)
Image isn’t square to
the screen
• Reposition the projector to improve its angle to the screen. (
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)
• Use the Keystone correction function to correct the trapezoid distortion. (
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)
Picture is blurred
• Adjust the focus. (
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)
• Reposition the projector to improve its angle to the screen. (
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)
• Ensure that the distance between the projector and screen is within the adjustment range of the lens.
(
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)
• 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 approxi-
mately 5500 feet/1700 meters 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]. (
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)
Image is scrolling verti-
cally, 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. (
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• Adjust the computer image manually with the Horizontal/Vertical in the [IMAGE OPTIONS]. (
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)
Remote control does
not work
• Install new batteries.(
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• Make sure there are no obstacles between you and the projector.
• Stand within 22 feet (7 m) of the projector. (
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• Make sure that the remote control's ID corresponds with the projector's ID. (
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)
Indicator is lit or blink-
ing
• See the POWER/STATUS/LAMP Indicator. (
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Cross color in RGB
mode
• Press the AUTO ADJ. button on the projector cabinet or the remote control. (
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)
• Adjust the computer image manually with [CLOCK]/[PHASE] in [IMAGE OPTIONS] in the menu. (
→
LAN control is not ac-
tive or PC Control is
not active
• Make sure that [CONTROL TERMINAL] is set correctly. (
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)
Cannot control the pro-
jector from external
equipment
• Check to see if [STANDBY MODE] is set to [POWER-SAVING] and if it is, try to set it to [NORMAL]. (
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For more information contact your dealer.