Common Problems & Solutions - NEC PX803UL-WH User Manual

Common Problems & Solutions
(→ "POWER/STATUS/LIGHT/TEMP. Indicator" on page 186, 187.)
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
or shut down
• Check to see if the projector has overheated. If there is insufficient ventilation around the projector or if the
• The light module may fail to light. Wait a full minute and then turn on the power again.
• In case it's hard to think the trouble is not caused on the above mentioned conditions, unplug the power
Will turn off • Ensure that the [OFF TIMER], [AUTO POWER OFF] or [PROGRAM TIMER] is off. (→ page 120, 135)
No picture • Check if the appropriate input is selected. (→ page 20) If there is still no picture, press the SOURCE button
• Ensure your cables are connected properly.
• Use menus to adjust the brightness and contrast. (→ page 93)
• Check that the SHUTTER (lens shutter) or AV MUTE (image off) buttons are not pressed.
• Check the [POWER ON SHUTTER] in the onscreen menu is not set to [CLOSE].
• Reset the settings or adjustments to factory preset levels using the [RESET] in the Menu. (→ page 136)
• Enter your registered keyword if the Security function is enabled. (→ page 45)
• If the HDMI IN or the DisplayPort IN signal cannot be displayed, try the following.
• Signals may not be supported depending on the HDBaseT transmission device. IR and RS232C cannot be
• Be sure to connect the projector and notebook PC while the projector is in standby mode and before turning
• See also the page 190�
Picture suddenly • Check if the projector is in the Forced ECO mode because of too high ambient temperature.
becomes dark
Color tone or hue is • Check if an appropriate color is selected in [WALL COLOR]. If so, select an appropriate option. (→ page
unusual
• Adjust [HUE] in [PICTURE]. (→ page 93)
Image isn't square to • Reposition the projector to improve its angle to the screen. (→ page 22)
the screen • Use the Keystone correction function to correct the trapezoid distortion. (→ page 42)
Picture is blurred • Adjust the focus. (→ page 26)
• Reposition the projector to improve its angle to the screen. (→ page 22)
• Ensure that the distance between the projector and screen is within the adjustment range of the lens.
• Has the lens been shifted by an amount exceeding the guaranteed range? (→ page 174)
• Condensation may form on the lens if the projector is cold, brought into a warm place and is then turned
Image is scrolling • Check the computer's resolution and frequency. Make sure that the resolution you are trying to display is
vertically, horizontally
or both • Adjust the computer image manually with the Horizontal/Vertical in the [IMAGE OPTIONS]. (→ page 94)
Remote control does • Install new batteries. (→ page 11)
not work • Make sure there are no obstacles between you and the projector.
• Stand within 22 feet (7 m) of the projector. (→ page 12)
Indicator is lit or • See the POWER/STATUS/LIGHT/TEMP. Indicator. (→ page 186, 187)
blinking
control is on� (→ pages 14, 15)
room where you are presenting is particularly warm, move the projector to a cooler location�
cord from the outlet� Then wait 5 minutes before plugging it in again� (→ page 34)
or one of the source buttons again�
- Reinstall your driver for the graphics card built in your computer, or use the updated driver�
For reinstalling or updating your driver, refer to the user guide accompanied with your computer or
graphics card, or contact the support center for your computer manufacturer�
Install the updated driver or OS on your own responsibility�
We are not liable for any trouble and failure caused by this installation�
used in certain cases as well�
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�
115)
(→ page 171)
on� Should this happen, let the projector stand until there is no condensation on the lens�
supported by the projector� (→ page 177)
189
9. Appendix