Common Problems & Solutions - NEC PH1202HL1 User Manual

Common Problems & Solutions
(→ "POWER/STATUS/LIGHT/TEMP./SHUTTER/KEY LOCK Indicator" on page 175, 176.)
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.
• Set [FAN MODE] to [HIGH] when using the projector at highlands. Using the projector at highlands can
• 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 108, 123)
No picture • Check if the appropriate input is selected. (→ page 18) 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 82)
• Is the [POWER ON SHUTTER] in the on-screen menu set to [CLOSE]?
• Check that the SHUTTER (lens shutter), the LIGHT SOURCE, or AV MUTE (image off) buttons are not
• Reset the settings or adjustments to factory preset levels using the [RESET] in the Menu. (→ page 124)
• Enter your registered keyword if the Security function is enabled. (→ page 37)
• 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 179.
Picture suddenly • Check if the projector is in the Forced ECO mode because of too high ambient temperature. If this is the
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 83)
Image isn't square to • Reposition the projector to improve its angle to the screen. (→ page 20)
the screen • Use the Keystone correction function to correct the trapezoid distortion. (→ page 34)
Picture is blurred • Adjust the focus. (→ page 24)
• 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.
• Has the lens been shifted by an amount exceeding the guaranteed range? (→ page 158)
• 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 85)
control is on. (→ pages 13, 14)
room where you are presenting is particularly warm, move the projector to a cooler location.
cause the projector to overheat and the projector could shut down. If this happens, wait a couple minutes
and turn on the projector. (→ page 104)
If you turn on the projector immediately after the light module 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.
cord from the outlet. Then wait 5 minutes before plugging it in again. (→ page 26)
or one of the source buttons again.
pressed.
- 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.
case, lower the internal temperature of the projector by selecting [HIGH] for [FAN MODE]. (→ page 104)
104)
(→ page 156)
on. Should this happen, let the projector stand until there is no condensation on the lens.
supported by the projector. (→ page 161)
177
9. Appendix