6. MAINTENANCE

This section describes the simple maintenance procedures you should follow to replace the lamp and clean the filter.

Replacing the Lamp

After your lamp has been operating for 1500 hours (2000 hours : Eco mode) or longer, the “Status” light in the cabinet will go on and the message will appear. Even though the lamp may still be working, re- place it at 1500 (up to 2000 hours : Eco mode) hours to maintain opti- mal projector performance.

CAUTION

DO NOT TOUCH THE LAMP immediately after it has been used. It will be extremely hot. Turn the projector off, wait a full minute, and then disconnect the power cable. Allow at least one hour for the lamp to cool before handling.

DO NOT REMOVE ANY SCREWS except the lamp cover screw and two lamp housing screws. You could receive an electric shock.

The projector will turn off and go into stand by mode after 1600 (2100 hours : Eco mode) hours of service. If this happens, be sure to replace the lamp. If you continue to use the lamp after 1500 hours (2000 hours : Eco mode) of use, the lamp bulb may shatter, and pieces of glass may be scattered in the lamp housing. Do not touch them as the pieces of glass may cause injury. If this happens, contact your NEC dealer for lamp replacement.

To replace the lamp:

1.Loosen the lamp cover screw until the screwdriver goes into a freewheeling condition and remove the lamp cover. The lamp cover screw is not removable.

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2.Loosen the two screws securing the lamp housing until the screw- driver goes into a freewheeling condition. The two screws are not removable.

Remove the lamp housing by pulling out the handle.

NOTE: There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circumvent this interlock.

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Interlock

3.Insert a new lamp housing until the lamp housing is plugged into the socket.

CAUTION: Do not use a lamp other than the NEC replacement lamp (GT50LP). Order this from your NEC dealer.

Secure it in place with the two screws.

Be sure to tighten the screws.

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4.Reattach the lamp cover.

Tighten the lamp cover screw.

Be sure to tighten the screw.

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5.After you install a new lamp, select [Menu] [Projector Op- tions] [Setup][Page 4][Clear Lamp Hour Meter] to reset the lamp usage hours.

NOTE: When the lamp exceeds 1600 hours (2100 hours : Eco mode) of ser- vice, the projector cannot turn on and the message is not displayed. If this happens, press Help button on the remote control for a minimum of 10 sec- onds while in standby mode. When the lamp time clock is reset to zero, the STATUS indicator goes out.

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NEC GT1150 user manual Maintenance, Replacing the Lamp, To replace the lamp, Interlock

GT1150 specifications

The NEC GT1150 is a high-performance projector designed to meet the demands of various applications in educational, business, and professional environments. Equipped with advanced technologies, it offers exceptional image quality and versatility, making it an ideal choice for presentations and multimedia displays.

One of the standout features of the NEC GT1150 is its brightness. With a remarkable output of 5,000 ANSI lumens, the projector delivers vibrant images even in well-lit rooms. This high brightness level ensures that presentations can be seen clearly in various lighting conditions, lending itself to classrooms, conference rooms, and auditoriums alike.

The resolution of the GT1150 is another key aspect. It supports XGA (1024 x 768), which provides a sharp and detailed image, crucial for displaying text-heavy presentations or intricate visuals. The projector’s contrast ratio enhances this experience, offering deep blacks and bright whites, thus elevating the overall viewing experience for audiences.

In terms of connectivity, the NEC GT1150 is equipped with multiple input options. It includes VGA, composite, and S-Video connections, enabling users to connect a variety of devices such as laptops, document cameras, and DVD players seamlessly. Additionally, the projector features a built-in 10-watt speaker, providing adequate sound output for most presentation settings.

Another interesting characteristic of the GT1150 is its portability. Weighing approximately 7.5 pounds, it is designed with ease of transport in mind, allowing users to set it up quickly in different locations. This mobility makes it a preferred choice for educators and business professionals who need to move between multiple venues regularly.

The GT1150 is also designed with user convenience in mind. It features an intuitive on-screen menu, providing easy access to a range of functions including picture adjustments, source selection, and setup options. This user-friendly interface contributes to a smoother operation, allowing presenters to focus on their content rather than technical difficulties.

Moreover, the NEC GT1150 is built to last, with an expected lamp life of up to 4,000 hours in normal mode, which can stretch to 5,000 hours in eco mode. This longevity reduces maintenance costs and minimizes downtime due to lamp replacements.

In summary, the NEC GT1150 is a versatile and robust projector that excels in delivering high-quality images, a variety of connectivity options, and user-friendly features, making it an excellent choice for a wide array of presentations and multimedia applications. Whether in the classroom or a corporate setting, the GT1150 helps ensure that your content is delivered effectively and efficiently.