79TroubleshootingBefore calling your dealer or service center for assistance, check the items below once again.1. Make sure you have properly connected the projector to peripheral equipment as described on pages 20–21.2. Check the cable connection. Make sure that all computers, video equipment, and power cords are properlyconnected.3. Make sure that all power is switched on.4. If the projector still does not produce an image, restart your computer.5. If an image still does not appear, disconnect the projector from your computer and check your computermonitor’s display. A problem may be noticed with your graphics controller rather than with the projector.(When you reconnect the projector, be sure to turn the computer and monitor off before you turn on theprojector. Turn on equipment in the order of the projector and computer.)6. If a problem still persists, check the following solutions.AppendixProblem: SolutionsNo power.– Plug the power cord of the projector into the AC outlet.– Turn the MAIN ON/OFF switch to ON.– Press the ON/STAND-BY Button to ON.– Make sure the POWER indicator lights.– Check the indicators. If the LAMP indicator lights and the other indicators blink, theprojector cannot be turned on. (Refer to page 78.)– Check the projection lamp. (Refer to pages 75, 76.)– Unlock the ley lock function. (See page 63)PIN code dialog box appearsat start-up.– PIN code lock is being set. Enter a PIN code; the “1234” or numbers you have set (seepages 24, 63, 64)The initial display is notshown.– Make sure “Off ” or “Countdown Off” are not chosen at Display function.(See page 53)The initial display is notsame with the default one.– Make sure “User” or “Off” are not chosen at Logo select function.(See page 59)When the projector is on andyou press the input button,an icon other than the Lampmode icon appears.– That is the Filter warning icon. Refer to page 71.An icon other than Inputmode or Lamp mode iconappears.– That is the Lamp replacement icon or the Filter warning icon. See pages 71, 75.No image.– Check the connection between your computer or video equipment and the projector.– See if the input signal is correctly output from your computer. Some laptop computersmay need to be changed the setting for monitor output when connected to theprojector. See your computer’s instruction manual for the setting.– It takes about 20 seconds to display an image after turning on the projector.– See if the selected system is corresponding with your computer or video equipment.– Select correct input source once again through menu operation (See pages 32-34).– Make sure the temperature is not out of Operating Temperature (41˚F–104˚F [5˚C–40˚C]).– Make sure that the shutter is open. (See pages 28, 65)