NEC HT510 HT510_510 UM - Page 61

7. TROUBLESHOOTING Common Problems & Solutions Problem Check These Items Does not turn on • Check that the power cable is plugged in and that the power button on the projector cabinet or the remote control is on. See pages E-20 and E-21. • Ensure that the lamp cover or lamp housing is installed correctly. See page E-47. • Check to see if the projector has overheated or the lamp has reached the end of its usable life. If there is insufficient ventilation around the projector or if the room where you're presenting is particularly warm, move the projector to a cooler location. • The lamp may fail to light. Wait a full minute and then turn on the power again. • The lamp has reached the end of its usable life. Replace the lamp. Lamp does not turn on; POWER and STATUS LEDs are blinking green at the same time • Wait for 60 seconds (cooling period)to see if the lamp turns on by itself. POWER and STATUS LEDs blinking green at the same time indicates the main power was interrupted during previous operation. Will turn off • Ensure that the Power Management is off. See page E-42. No picture • Use the VIDEO, S-VIDEO, C-VIDEO or COMP. button on the remote control or the SOURCE button on the cabinet to select your source (Video, S-Video, Component or Computer). See page E-23. • Ensure your cables are connected properly. • Use menus to adjust the brightness and contrast. See page E-35. • Reset the settings or adjustments to factory preset levels using "Reset" in the menu. See page E-44. • Enter your registered keyword if the Security function is enabled. See page E-39. • When using with a notebook PC, be sure to connect between the projector and the notebook PC before turning on the power to the notebook PC. In most cases signal cannot be output from RGB output unless the notebook PC is turned on after connecting with the projector. * If the screen goes blank while using your remote control, it may be the result of the computer's screensaver or power management software. * For more detailed, see page E-52. Image isn't square to the screen • Reposition the projector to improve its angle to the screen. See pages E-23 and E-24. • Use the Keystone correction function to correct the trapezoid distortion. See page E-26. Color tone or hue is unusual • Check if an appropriate color is selected in "Wall Color". If so, select an appropriate option. See page E-35. • Adjust "Hue" in "Picture". See page E-35. E-50