3. Appendix
43
Common Problems & Solutions
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.
• Check to see if the projector has temperature error, If projector inside temperature is too hot or cool,
it disabled to turn on the projector as the protection. Wait for a moment and try turn on the projector
again.
• Set [FAN MODE] to [HIGH ALTITUDE] when using the projector at altitudes approximately 5500
feet/1600 meters 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.
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.
• In case it’s hard to think the trouble is not caused on the above mentioned conditions, unplug the
power cord from the outlet. Then wait 5 minutes before plugging it in again.
Will turn off
• Ensure that the [OFF TIMER] or [AUTO POWER OFF] is off.
No picture
• Check if the appropriate input is selected. If there is still no picture, press the INPUT button or one
of the input buttons again.
• Ensure your cables are connected properly.
• Use menus to adjust the brightness and contrast.
• Reset the settings or adjustments to factory preset levels using the [RESET] in the Menu.
• Enter your registered keyword if the Security function is enabled.
• If the HDMI input signal cannot be displayed, try the following.
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.
• The signal may not be supported depending on the HDBaseT transmission device. In addition, RS232C
interface may not be supported.
• 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.
Picture suddenly becomes
dark
• A hot room may trigger the projector’s protection functions, which can result in a temporary reduction
in luminance (brightness). Reduce the temperature in the room.
Color tone or hue is unusual
• Check if an appropriate color is selected in [WALL COLOR]. If so, select an appropriate option.
• Adjust [HUE] in [PICTURE].
Image isn’t square to the
screen
• Reposition the projector to improve its angle to the screen.
• Perform [KEYSTONE] when the trapezoid is distorted.