Common problems & solutions, Appendix – NEC LT380 User Manual

Page 118

Advertising

108

8. Appendix

Common Problems & Solutions

(

→ "Power/Status/Lamp Indicator" on page

107

)

Does not turn on

Will turn off

No picture

Color tone or hue is
unusual

Image isn’t square to
the screen

Picture is blurred

Image is scrolling
vertically, horizontally
or both

Remote control does
not work

Indicator is lit or
blinking

Vertical stripes in RGB
mode

USB mouse does not
work

• Check that the power cable is plugged in and that the power button on the projector cabinet or the remote

control is on. (

→ page

)

• Ensure that the lamp cover is installed correctly. (

→ page

105

)

• Check to see if the projector has overheated. If there is insufficient ventilation around the projector or if the

room where you are presenting is particularly warm, move the projector to a cooler location.

• Check to see if the lamp usage exceeds 2100 hours (up to 3100 hours : Eco mode). If so, replace the lamp.

After replacing the lamp, reset the lamp hours used. (

→ page

101

)

• The lamp may fail to light. Wait a full minute and then turn on the power again.

• Ensure that the Power Management or Off Timer is off. (

→ page

)

• Use the SOURCE button on the projector cabinet or the VIDEO, the S-VIDEO, the COMPUTER 1, the COM-

PUTER 2, the COMPUTER 3 (LT380 only), COMPONENT, the VIEWER or the LAN button on the remote control
to select your source. (

→ page

)

• Ensure your cables are connected properly.
• Use menus to adjust the brightness and contrast. (

→ page

)

• Check to see if the image is muted. (

→ page

)

• Remove the lens cap.
• Reset the settings or adjustments to factory preset levels using the Reset in the Menu. (

→ page

101

)

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

→ page

)

• Be sure to connect the projector and notebook PC while the projector is in standby mode and before turning on

the power to the notebook PC.
In most cases the output signal from the notebook PC is not turned on unless connectedto the projector be-
fore being powered up.
* If the screen goes blank while using your remote control, it may be the result of the computer's screen-

saver or power management software.

• See also the next page.

• Check if an appropriate color is selected in [Wall Color]. If not, select an appropriate option. (

→ page

)

• Adjust [Hue] in [Adjust]. (

→ page

)

• Reposition the projector to improve its angle to the screen. (

→ page

)

• Use the 3DReform function to correct the trapezoid distortion. (

→ page

)

• Adjust the focus. (

→ page

)

• Reposition the projector to improve its angle to the screen. (

→ page

)

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

→ page

)

• Condensation may form on the lens if the projector is cold, brought into a warm place and is then turned on.

Should this happen, let the projector stand until there is no condensation on the lens.

• Use the SOURCE button on the projector cabinet or the VIDEO, the S-VIDEO, the COMPUTER 1, the COM-

PUTER 2, the COMPUTER 3 (LT380 only), COMPONENT, the VIEWER or the LAN button on the remote control
to select your source (Video, S-Video, Computer, Component, Viewer or LAN). (

→ page

)

• Adjust the computer image manually with the [Clock]/[Phase] in [Adjust]

→ [Image Options]. (→ page

)

• Install new batteries. (

→ page

)

• Make sure there are no obstacles between you and the projector.
• Stand within 22 feet (7 m) of the projector. (

→ page

)

• See the POWER/STATUS/LAMP Indicator. (