InFocus LP 840/LP 850 manual Maintenance, Cleaning the lens, Changing the lens

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Maintenance

NOTE: When you are performing maintenance activities on your projector, keep in mind that you should only remove screws that are single-slot, or flathead, screws. Any other type of screw, such as a phillips or star should not be removed. These types of screws should only be removed by technical support experts.

Cleaning the lens

1Apply a non-abrasive camera lens cleaner to a soft, dry cloth.

Avoid using an excessive amount of cleaner, and don’t apply the cleaner directly to the lens. Abrasive cleaners, solvents or other harsh chemicals might scratch the lens.

2Lightly wipe the cleaning cloth over the lens in a circular motion. If you don’t intend to use the projector immediately, replace the lens cap.

Changing the lens

clean the lens

with a soft dry cloth and non-abrasive cleaner

turn off and unplug the projector

Long throw and short throw lenses are available with your projector.

 

 

 

front

slide lever in slot to

1

Turn off the projector and unplug the power cable.

lens release holes

pop open cover

bezel

2

Turn the projector upright with the lens facing upward and use a screw-

 

 

 

cover

 

 

 

 

 

 

 

driver to remove the two screws from the front bezel release holes on the bottom of the projector.

3Lift off the front bezel.

4 Gently place a flathead screwdriver into the slot on the top of the projec- tor (it is by the right speaker) and slide the small lever toward the right speaker. The cover that protects the lens and the lamp housing pops up.

5Loosen the captive screw to the door that covers the lens housing.

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Contents USER’S Guide Trademarks Important Operating Considerations Table of ContentsPage Online Registration AccessoriesProjector components and features back IntroductionConnector Panel Positioning the projector Connecting a computer Required computer connectionsOptional computer connections Visit our website for information on ProjectorNet Displaying a computer image First-time projector use with Windows For Windows 2000, Windows ME, and Windows XP Wizard launches two timesAdjusting the image Connecting a video device Standard video connectionsOptional video connections Connect BNC cables Displaying a video image You can also adjust the zoom and focus via the menus. See Screen Save Troubleshooting your setupPower Save Shutting down the projectorComputer image projected SolutionRange Out Image clear and not cropped Page Color Lamp won’t turn on, Temp LED solid red Lamp won’t turn on, Lamp LED blinking redLamp must be replaced Lamp turns on Still having problems? Using the keypad buttons Troubleshooting the remote Using the remote controlUsing the audio Troubleshooting audioConnecting external speakers Optimizing computer images Presentation featuresCustomizing the projector Optimizing video imagesUsing the menus Picture menu Presets Advanced settings Settings menu Save Screen PiP Enable PiP Position Effect Key Network Maintenance Cleaning the lensChanging the lens Lamp module is on the right Resetting the lamp timer Cleaning the dust filter Using the security lockTroubleshooting Projected image size AppendixDistance Image Width 2.3 25/7.6 LED color/behavior Meaning LED BehaviorSetting Value RS-232 commandsCommunication Configuration Command FormatLimitations Error Conditions= Japanese = Korean = Portuguese = Russian = Norwegian NND Ntsc Function Com Min Max Step Mand Fault Numerics Page XGA Warranty Limitation and Exclusion Limited WarrantyLimited Warranty Period To Be Eligible For Limited Warranty CoverageTo Obtain Warranty Service If YOU Need ASSISTANCE… USER’S Guide

LP 840/LP 850 specifications

The InFocus LP 840 and LP 850 projectors are designed to meet the needs of professional environments, offering powerful features, advanced technologies, and high-quality performance. These projectors are ideal for business presentations, educational purposes, and corporate events, providing a reliable solution for any scenario requiring clear and vibrant visual displays.

Both the LP 840 and LP 850 deliver impressive brightness levels, with the LP 850 boasting 5000 ANSI lumens, while the LP 840 offers slightly lower brightness at 4500 ANSI lumens. This high level of brightness ensures that presentations are visible even in well-lit rooms, allowing for seamless visibility without compromising image quality. They support a native resolution of 1920 x 1200, ensuring that detailed graphics and text remain sharp and clear for maximum impact.

One of the standout features of these projectors is their built-in collaboration tools, which provide seamless integration with various devices. This functionality allows multiple users to connect their laptops or mobile devices wirelessly or via USB, facilitating interactive presentations and discussions. The LP 840 and LP 850 also include HDBaseT connectivity, which simplifies installation and reduces cable clutter, allowing for the transmission of video, audio, and control signals over long distances.

The projectors utilize advanced lamp technology, which increases their lifespan and reduces maintenance costs. With an operational lifespan of up to 10,000 hours in eco mode, users can rely on these projectors for extended periods without worrying about frequent lamp replacements. Additionally, both models offer a quick start-up and shut-down feature, enhancing user convenience.

Another key characteristic of the InFocus LP 840 and LP 850 is their comprehensive set of connectivity options, including HDMI, VGA, and audio jacks, making it compatible with a wide range of devices. This versatility ensures that users can easily connect laptops, DVD players, and other multimedia sources without any hassle.

The design of the LP 840 and LP 850 is also noteworthy, featuring a sleek and professional appearance that complements any office or classroom environment. The lightweight yet durable construction makes it easy to transport between different locations, catering to the needs of dynamic workspaces.

In conclusion, the InFocus LP 840 and LP 850 projectors stand out as exceptional tools for communication, collaboration, and engagement. With their robust brightness, high resolution, advanced connectivity options, and user-friendly features, they are well-suited for any audience that demands reliability and performance in their visual displays.
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