NEC LT155 Projector User Manual

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E – 50

5. TROUBLESHOOTING

This section helps you resolve problems you may encounter while setting up or using the projector.

Standby

Cooling down

Lamp in High-Bright mode

Lamp in Eco mode

One minute after lamp is turned on

in Eco mode

Lamp has reached its end of life

(1000 hours or over)

Lamp life has reached its end of life

(1100 hours or over)

Lamp or filter cover error (2 locations)

Temperature error

Fan error

Lamp error

Power/ Status Light Messages

Common Problems & Solutions

Condition

Does not turn on

No picture

Image isn’t square to the

screen

Picture is blurred

Image is scrolling vertically,

horizontally or both

Remote control does not

work

Status indicator is lit or blink-

ing

Cross color in RGB mode

• 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-48.

• Check to see if the projector has overheated or the lamp usage exceeds 1100 hours (2200 hours in Eco

mode). If there is insufficient ventilation around the projector or if the room where you’re presenting is particu-

larly warm, move the projector to a cooler location.

• Use the menu to select your source (Video, S-Video, RGB or PC Card Viewer). See page E-33.

• Ensure your cables are connected properly.

• Use menus to adjust the brightness and contrast. See page E-33.

• Remove the lens cap.

• Reset the settings or adjustments to factory preset levels using the Factory Default on the Image Options

Menu in Advanced menu. See page E-36.

• Reposition the projector to improve its angle to the screen. See page E-25.

• Use the Keystone to correct the trapezoid distortion. See page E-29 or 34.

• Adjust the focus. See page E-25.

• Reposition the projector to improve its angle to the screen. See page E-25.

• Ensure that the distance between the projector and screen is within the adjustment range of the lens. See

page E-16.

• Use menus or a source button on the remote control or the cabinet to select the source you want to input.

• Install new batteries. See page E-13.

• 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 or the PJ button lights in red. If not, press the PJ button.

• See the Power/ 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 and Clock

Adjust on the Advanced Options Menu. See page E-35.

Problem Check These Items

Steady orange

Blinking green

Steady green

Steady orange

–

Steady green

Blinking green

Steady red (High-Bright mode)/

Steady orange (Eco mode)

Steady red

Blinking red (1 sec interval)

Blinking red (4 sec interval)

Blinking red (8 sec interval)

Blinking red (12 sec interval)

–

Blinks green for 60 seconds

–

Fixed at High-Bright mode. Lamp mode

can be changed on the menu

Message appears on screen during 1000-

1100 hours of lamp usage. The projector

reaches its end of life. Please replace the

lamp as soon as possible.