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NEC VT770 manual 114, For more information contact your dealer

Models: VT770

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9. Appendix

Common Problems & Solutions (See also "Power/Status/Lamp Indicator" on page 113.)

 

 

 

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 28 and 30.

 

 

• Ensure that the lamp cover is installed correctly. See page 110.

 

 

• Check to see if the projector has overheated or the lamp usage exceeds 2100 hours (up to 3100 hours : Eco

 

 

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

 

 

ticularly 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.

 

 

 

 

Will turn off

• Ensure that the Power Management is off. See page 96.

 

 

 

 

No picture

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

 

 

PUTER 1/2 or the VIEWER button on the remote control to select your source (Computer 1/2, Component,

 

 

Video, S-Video or Viewer). See page 32.

 

 

• Ensure your cables are connected properly.

 

 

• Use menus to adjust the brightness and contrast. See page 78.

 

 

• Remove the lens cap.

 

 

• Reset the settings or adjustments to factory preset levels using the Reset in the Menu. See page 103.

 

 

• Enter your registered keyword if the Security function is enabled. See page 49.

 

 

• 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 screen-

 

 

saver or power management software.

 

 

* If you accidentally hit the POWER button on the remote control, wait 60 seconds and then press the POWER

 

 

button again to resume.

 

 

• See also the next page.

 

 

 

 

Picture suddenly

• When one of the following happens, the Lamp mode automatically changes from Normal to Eco.

 

becomes dark

* When there are no signals (blue or black screen) → To return to the Normal mode, select another available

 

 

source.

 

 

* When the image is muted using the PIC-MUTE button on the remote control → Press the PIC-MUTE button

 

 

again to return to the Normal mode.

 

 

* When the room where you' re presenting is particularly warm → Move the projector to a cooler location.

 

 

 

 

Color tone or hue is

• Check if an appropriate color is selected in "Wall Color". If so, select an appropriate option. See page 80.

 

unusual

• Adjust "Hue" in "Picture". See page 78.

 

 

 

 

Image isn’t square to

• Reposition the projector to improve its angle to the screen. See page 33.

 

the screen

• Use the 3DReform function to correct the trapezoid distortion. See page 35.

 

 

 

 

Picture is blurred

• Adjust the focus. See page 34.

 

 

• Reposition the projector to improve its angle to the screen. See page 33.

 

 

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

 

 

22.

 

 

• 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.

 

 

 

 

Image is scrolling

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

 

vertically, horizontally

PUTER 1/2 or the VIEWER button on the remote control to select your source (Video, S-Video, Component,

 

or both

Computer or Viewer). See page 32.

 

 

• Adjust the computer image manually with the Pixel Adjust/Position in the Image. See page 84.

 

 

 

 

Remote control does

• Install new batteries. See page 19.

 

not work

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

 

 

• Stand within 22 feet (7 m) of the projector. See page 19.

 

 

• Check if one or more remote sensors are enabled. Select [Setup] → [Page 4] → [Remote Sensor] from the

 

 

menu. See page 98.

 

 

• Make sure that you are in the Projector mode and the PJ button lights in red. If not, press the PJ button. See

 

 

page 40.

 

 

 

 

Indicator is lit or

• See the POWER/STATUS/LAMP Indicator on page 113.

 

blinking

 

 

 

 

 

Cross color in RGB

• Press the AUTO ADJUST button on the projector cabinet or the AUTO ADJ. button on the remote control. See

 

mode

page 37.

 

 

• Adjust the computer image manually with the Pixel Adjust/Position in the Image. See page 84.

 

 

 

 

For more information contact your dealer.

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NEC VT770 manual 114, For more information contact your dealer
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VT770 specifications

The NEC VT770 is a versatile and powerful projector designed for various applications, primarily in educational and corporate environments. It stands out for its remarkable image quality, ease of use, and innovative features that cater to both presenters and audiences.

One of the key features of the VT770 is its native XGA resolution (1024 x 768 pixels), which ensures clear and detailed images. It utilizes a 3LCD technology, which contributes to bright, vibrant colors and high light output. With a brightness rating of 2800 ANSI lumens, it performs exceptionally well in diverse lighting conditions, making it suitable for medium to large-sized rooms without compromising image quality.

The VT770 offers a contrast ratio of up to 600:1, which enhances the distinction between the brightest whites and the deepest blacks. This feature is particularly beneficial for presentations that involve detailed graphs or images, as it allows for precise visual communication. The projector’s lamp life extends to approximately 6000 hours in eco mode, thus reducing operational costs and the frequency of replacements.

Connectivity is another area where the VT770 excels. It comes equipped with multiple input options, including VGA, composite video, S-video, and HDMI. This flexibility allows users to connect various devices such as laptops, DVD players, and video game consoles seamlessly. Additionally, the projector supports optional wireless connectivity, enabling presentations without the hassle of cables.

User-friendly features are integrated into the VT770, including an intuitive control panel and remote control, allowing easy adjustments and navigation through settings. The projector also incorporates keystone correction, which aids in aligning the image and ensuring a squared display despite the projection angles.

Another distinguishing characteristic of the VT770 is its lightweight and portable design, making it an excellent choice for professionals on the go. It can be easily transported between locations, enabling spontaneous presentations without the need for extensive setup time.

In conclusion, the NEC VT770 is a feature-packed projector that combines high-quality imaging with flexible connectivity and user-friendly operation. Its suitability for educational and business presentations makes it an invaluable tool for professionals seeking reliable performance and portability.