NEC LT180 manual Common Problems & Solutions, Does not turn on

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-19and E-20.

• Ensure that the lamp cover or lamp housing is installed correctly. See page

E-46.

• 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;

• Wait for 60 seconds (cooling period)to see if the lamp turns on by itself.

POWER

and

STATUS

POWER

and

STATUS

LEDs blinking green at the same time indicates the

LEDs are blinking green

main power was interrupted during previous operation.

at the same time

Will turn off

• Ensure that the Power Management is off. See page E-41.

No picture

• Use the

or

button on the re-

VIDEO,

S-VIDEO,

COMPUTER

COMPONENT

mote control or the

button on the cabinet to select your source

SOURCE

(Video, S-Video, Component or Computer). See page E-22.

• Ensure your cables are connected properly.

• Use menus to adjust the brightness and contrast. See page E-34.

• Reset the settings or adjustments to factory preset levels using “Reset” in

the menu. See page E-43.

• Enter your registered keyword if the Security function is enabled. See page

E-38.

• 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-51.

Image isn’t square to the

• Reposition the projector to improve its angle to the screen. See pages E-22

screen

and E-23.

• Use the Keystone correction function to correct the trapezoid distortion. See

page E-25.

Color tone or hue is un-

• Check if an appropriate color is selected in “Wall Color”. If so, select an

usual

appropriate option. See page E-34.

• Adjust “Hue” in “Picture”. See page E-34.

E-49