NEC LT150Z User Manual - Page 56

5. TROUBLESHOOTING This section helps you resolve problems you may encounter while setting up or using the projector. Status Light Messages Condition OFF Status • Normal On continually • The projector lamp has exceeded 1000 hours of operation and should be replaced. The projector will turn off and go into the standby mode after 1100 hours of service. Blinking very rapidly (On • The lamp cover is not fastened properly. Check and reattach it if necessary. and off in a cycle of 1 sec.) Blinking rapidly (On and off • The temperature protector has been triggered. If the room temperature is high, move the projector to a in a cycle of 4 sec) cooler location. If the temperature inside the projector is high, check the cooling fan hole on the bottom of the projector. If the hole is blocked, remove whatever is blocking it. Blinking slowly (On and off • The cooling fan has stopped. Contact your NEC dealer for service. in a cycle of 8 sec.) Blinking very slowly (On • The lamp is not turned on. and off in a cycle of 12 sec.) The projector was turned off and back on too quickly. Turn off the projector, wait 90 seconds, then turn the projector back on. Or the lamp is burnt out. Common Problems & Solutions Problem Does not turn on Check These Items • Check that the power cable is plugged in and that the power button on the projector cabinet or the remote control is on. • Ensure that the lamp cover is installed correctly. See page E-52. • Check to see if the projector has overheated or the lamp usage exceeds 1100 hours. 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. No picture • Use the menu to select your source (Video, S-Video, RGB or PC Card Viewer). See page E-36. • Ensure your cables are connected properly. • Use menus to adjust the brightness and contrast. See page E-36 • Remove the lens cap. • Reset the settings or adjustments to factory preset levels using the Factory Default in the Adjustment Menu. See page E-39 Image isn't square to the • Reposition the projector to improve its angle to the screen. See page E-28 screen • Use the Keystone in the Adjustment Menu to correct the trapezoid distortion. See page E-37 Picture is blurred • Adjust the focus. See page E-28 • Reposition the projector to improve its angle to the screen. See page E-28 • Ensure that the distance between the projector and screen is within the adjustment range of the lens. See page E-19 Image is scrolling verti- • Use menus or Source button on the remote control or the cabinet to select the source you want to input. cally, horizontally or both Remote control does not work • Check the card remote control. If the insulation tape remains, remove it. See page E-13 • Install a new battery. See page E-13 or E-16 • Make sure there are no obstacles between you and the projector. • Stand within 22 feet (7 m) of the projector. See page E-13 • Make sure that you are in the Projector mode and the PJ button lights in red when using the optional presentation remote control. If not, press the PJ button. Status indicator is lit or blinking Cross color in RGB mode • See the Status Light messages above. • If Auto Adjust is off, turn it on. If Auto Adjust is on, turn it off and balance the image with the Position/ Clock in the Image Options. See page E-38 or E-41 E-53