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M A I N T E N A N C E

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This section describes the simple maintenance procedures you should follow to replace the lamp, clean or replace the filter, and replace the batteries in the remote control.

Replacing The Lamp

After your lamp has been operating for 2000 hours or longer, the “status” light in the cabinet will go on. Even though the lamp may still be working, replace it at 2000 hours to maintain optimal projector performance.

CAUTION

 

• DO NOT TOUCH THE LAMP immediately after it has been used. It will

 

be extremely hot. Allow at least one hour for the lamp to cool before

 

handling.

 

• DO NOT REMOVE ANY SCREWS except the lamp cover set screw

 

and two lamp case screws. You could receive an electric shock.

 

• Turn off the main power to the projector and disconnect the power cord.

 

Allow at least one hour for the lamp to cool.

 

• The projector will turn off and go into stand by mode after 2100 hours of

 

service. If this happens, be sure to replace the lamp. If you continue to

 

use the lamp after 2000 hours of use, the lamp bulb may shatter, and

 

pieces of glass may be scattered in the lamp case. Do not touch them as

 

the pieces of glass may cause injury. If this happens, contact your NEC

 

dealer for lamp replacement.

Interlock

Step 1A

Step 1B

Step 2

To replace the lamp:

1.Remove the single screw that secures the lamp housing cover and remove the cover.

2.Remove the two screws securing the lamp case. (There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circum- vent this interlock.)

3.Remove the lamp by pulling out the complete assembly.

4.Install a new lamp case assembly and secure it in place with the two screws.

CAUTION: Do not use a lamp other than the NEC replacement lamp. Order this from your NEC dealer using your projector's model number.

5.Reattach the lamp cover and reinstall the single screw.

6.After you install a new lamp, select the lamp Usage icon and press and hold the "Power On" button on the remote control for ten seconds to reset the lamp time clock to zero.

NOTE: If resetting the lamp clock back to zero after 2100 hours of service, press the "Power Off" (not "Power On") button on the remote control for ten seconds .

NOTE: When you replace the lamp, it is also wise to replace the filter. The filter comes in the same package with your replacement lamp.

CAUTION: Do not put the LCD projector on end except to replace the air filter.

Step 3

Step 4

Step 5

 

MAINTENANCE

 

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NEC MT820, MT1020 user manual I N T E N a N C E, Replacing The Lamp, Step To replace the lamp
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MT1020, MT820 specifications

The NEC MT820 and MT1020 are high-performance projectors designed to meet the needs of various presentation environments. Renowned for their reliability and image quality, these projectors are ideal for educational institutions, corporate settings, and public venues.

One of the standout features of both models is their impressive brightness. The MT820 boasts a brightness of up to 2700 ANSI lumens, while the MT1020 offers an even higher brightness level of 3000 ANSI lumens. This makes them suitable for use in well-lit rooms where clear visibility is critical. The high brightness levels ensure that images and presentations remain vibrant and easy to read, even in challenging lighting conditions.

In terms of resolution, the MT820 and MT1020 support XGA (1024x768) native resolution, allowing for detailed and sharp visuals. Additionally, both projectors can handle various input sources, including VGA, HDMI, and composite video, providing excellent versatility for connecting to different devices such as laptops, DVD players, and multimedia players.

The NEC MT820 and MT1020 utilize DLP (Digital Light Processing) technology, which enhances their performance by providing better color accuracy and improved longevity when compared to other projection technologies. This means that users can expect high-quality images that remain consistent over time without the risk of color degradation.

Portability is another key characteristic of these projectors. Weighing in at around 4.5 kg (approximately 10 lbs), the MT820 and MT1020 are designed for ease of transport, making them suitable for on-the-go presentations. Their compact size facilitates quick setup and dismantle, making them ideal candidates for traveling professionals and educators who need to move from one location to another.

For ease of use, both models come equipped with a user-friendly interface, making system navigation intuitive for first-time users as well as seasoned professionals. The projectors also feature built-in speakers, providing decent audio output without the need for external sound systems, which is a great advantage in smaller presentation settings.

In summary, the NEC MT820 and MT1020 projectors stand out due to their excellent brightness levels, reliable DLP technology, versatile input options, portability, and user-friendly features. These characteristics make them suitable for diverse presentation environments, ensuring that audiences receive clear, high-quality visuals regardless of the setting. Whether used in a classroom or a business meeting, these projectors provide a reliable solution for all projection needs.
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