Bedienungsanleitung Nec np400 (Seite 92 von 109) (Englisch)

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7. Appendix

Common Problems & Solutions (→ “Power/Status/Lamp Indicator” on page 82.)

Does not turn on

or shut down

Will turn off

No picture

Picture suddenly

becomes dark

Color tone or hue is

unusual

Image isn’t square to

the screen

Picture is blurred

Flicker appears on

screen

Image is scrolling

vertically, horizontally

or both

Remote control does

not work

Indicator is lit or blinking

Cross color in RGB

mode

Problem Check These Items

For more information contact your dealer.

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

control is on. (→ pages 25 and 38)

• Ensure that the lamp cover is installed correctly. (

→ page 81)

• 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 3100 hours (up to 4100 hours : Eco mode). If so, replace the lamp.

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

→ page 75)

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

• Set [FAN MODE] to [HIGH ALTITUDE] when using the projector at altitudes approximately 5500 feet/1600

meters or higher. Using the projector at altitudes approximately 5500 feet/1600 meters or higher without setting

to [HIGH ALTITUDE] can cause the projector to overheat and the projector could shut down. If this happens,

wait a couple minutes and turn on the projector. (→ page 69)

Also when the lamp is turned off, the projector internal temperature is hot. If the power is turned on before

the projector has cooled down, the fan will run a short time before the lamp will turn on.

• Ensure that the [OFF TIMER] or [AUTO POWER OFF] is off. (→ page 71, 72)

• Use the COMPUTER1, the COMPUTER2, the VIDEO or the S-VIDEO button on the remote control to select

your source (Computer, Video or S-Video). (→ page 29) If there is still no picture, press the button again.

• Ensure your cables are connected properly.

• Use menus to adjust the brightness and contrast. (

→ page 57)

• Remove the lens cap.

• Reset the settings or adjustments to factory preset levels using the [RESET] in the Menu. (

→ page 75)

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

→ page 42)

• 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 connected to the projector

before 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 the projector is in the Forced ECO mode because of too high ambient temperature. If this is the case,

lower the internal temperature of the projector by selecting [HIGH] for [FAN MODE]. (→ page 69)

• Check if an appropriate color is selected in [WALL COLOR]. If so, select an appropriate option. (→ page 64)

• Adjust [HUE] in [PICTURE]. (

→ page 57)

• Reposition the projector to improve its angle to the screen. (→ page 30)

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

→ page 34)

• Adjust the focus. (→ page 33)

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

→ page 30)

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

(→ page 15)

• 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.

•

Set [FAN MODE] to other than [HIGH ALTITUDE] mode when using the projector at altitudes approximately 5500 feet/1600

meters or lower. Using the projector at altitudes less than approximately 5500 feet/1600 meters and setting to [HIGH

ALTITUDE] can cause the lamp to overcool, causing the image to ﬂicker. Switch [FAN MODE] to [AUTO]. (→ page 69)

• Use the COMPUTER1, the COMPUTER2, the VIDEO or the S-VIDEO button on the remote control to select

your source (Computer, Video or S-Video). (→ page 29)

• Adjust the computer image manually with the Horizontal/Vertical in the [IMAGE OPTIONS]. (

→ page 59)

• Install new batteries.(→ page 10)

• Make sure there are no obstacles between you and the projector.

• Stand within 22 feet (7 m) of the projector. (

→ page 10)

• See the POWER/STATUS/LAMP Indicator. (→ page 82)

• Press the AUTO ADJ. button on the projector cabinet or the remote control. (→ page 37)

• Adjust the computer image manually with [CLOCK]/[PHASE] in [IMAGE OPTIONS] in the menu. (→ page 58)

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