Sharp NP-PX2201UL User Manual - NEC - Page 107

7. Appendix 7-6. Troubleshooting This section helps you resolve problems you may encounter while setting up or using the projector. Problem Does not turn on or shut down Will turn off No picture Picture suddenly becomes dark Color tone or hue is unusual Image isn't square to the screen Picture is blurred Remote control does not work Indicator is lit or blinking Check These Items • Check that the power cord is plugged in and that the power button on the projector cabinet or the remote control is on. (→ pages 13, 15) • 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. • 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 cord from the outlet. Then wait 5 minutes before plugging it in again. • Ensure that the [AUTO POWER OFF] is off. (→ page 64) • Check if the appropriate input is selected. (→ page 18) If there is still no picture, press the INPUT button on the projector cabinet or one of the source buttons on the remote control again. • Ensure your cables are connected properly. • Use menus to adjust the brightness and contrast. (→ page 54) • Check that the SHUTTER (lens shutter) button is not pressed. • Reset the settings or adjustments to factory preset levels using the [RESET ALL] in the Menu. (→ page 70) • If the HDMI 1 IN/HDMI 2 IN or the DisplayPort IN signal cannot be displayed, try the following. - Reinstall your driver for the video 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 video 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. • Signals may not be supported depending on the HDBaseT transmission device. IR and RS232C cannot be used in certain cases as well. • 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 screensaver or power management software. • See also the page 88. • Check if the projector is in the "Forced ECO MODE" because of too high ambient temperature. • Adjust [HUE] in [PICTURE]. (→ page 54) • Reposition the projector to improve its angle to the screen. (→ page 20) • Use the Keystone correction function to correct the trapezoid distortion. (→ page 34) • Adjust the focus. (→ page 24, 25) • 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 74) • Has the lens been shifted by an amount exceeding the guaranteed range? (→ page 77) • 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. • Install new batteries. (→ page 10) • Make sure there are no obstacles between you and the projector. • Stand within 22 feet (7 m) of the projector. (→ page 11) • See the POWER/STATUS/LIGHT/TEMP. Indicator. (→ page 89) For more information contact your dealer. 87