InFocus LP 740 warranty Replacing the Projection Lamp

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M a i n t e n a n c e

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T r o u b l e s h o o t i n g

 

 

 

WARNING: To avoid burns, allow the projector to cool for at least 30 minutes before you open the lamp module door. Never extract the lamp module while the lamp is operating.

FIGURE 15

Removing the filter door

3Clean the filter.

•Use a vacuum cleaner set on low power to remove the dust and dirt.

4Re-install the filter.

Replacing the Projection Lamp

The lamp hour counter in the menus counts the number of hours the lamp has been in use. The LP 740 uses a metal halide bulb. These types of bulbs deteriorate over time. Replace the lamp when the brightness is no longer acceptable. The lamp LED blinks slowly after 950 hours; it blinks more rapidly after 1000 hours. You can order new lamp modules from your In Focus dealer. See “Accessories” on page 34 for information.

Follow these steps to replace the projection lamp:

1Turn off the projector and unplug the power cord.

2Wait 30 minutes to allow it to cool thoroughly.

3Place the projector on its side, then remove the 2 screws on the lamp module door (Figure 16).

4Pull the lamp door up and remove it.

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Contents Table of Contents Index AppendixPower Source Safety SummaryPower Cord Do Not Look Into The LensLamp GroundingLamp Compartment Hot SurfacesIntroduction Image ResolutionCompatibility Unpacking the ProjectorT r o d u c t i o n Back view of projector If You Need Assistance WarrantyUsage Guidelines Setting UP the Projector T t i n g O j e c t o r Do you want to play your computer’s audio on the projector? Connecting a ComputerConnecting a Video Player Powering up the Projector and Adjusting the Image Turning Off the Projector Adjusting the Projector Using the ProjectorBasic Image Adjustment I n g O j e c t o r Keypad Using the Remote Control and Keypad ButtonsVolume PowerSource Computer, Video, or S-Video on remote MenuRestore Remote Control Only Buttons AutoBright Zoom + and ZoomMenu Main Using the On-Screen MenusItems are different for video Computer sources Here is the menu structure Image control Video only adjustmentsAudio control Submenu Function Custom setupInformation InformationUsers memory Load Users memory SaveCleaning the Fan Intake Filter Maintenance & TroubleshootingCleaning the Lens Replacing the Projection Lamp Removing the lamp door Installing a new lamp module Problem Color or text not being projected Troubleshooting Problem Nothing on projection screenProblem The screen resolution is not right Problem Image isn’t centered on the screenProblem Image is too wide or narrow for screen Problem Image and menus are reversed left to right Problem Image is out of focusProblem no sound Problem Image is noisy or streakedProblem Lamp shuts off Problem Lamp seems to be getting dimmerAppendix SpecificationsOptional Accessories AccessoriesKey command to Computer Activate port De-activate port Portable and Laptop Activation ChartFN-F6 FN-F4 FN-F1 FN-F2 FN-F1 FN-F7 FN-F5 Using SimulScan Using Video Mirroring with a PowerBook ComputerDistance to Diagonal Width Height Projected Image SizeImage Size, Width and Height for lens at Minimum Image Size Communication configuration RS-232 Terminal SpecificationsSetting Value Command formatSupported commands Function Command Meaning Index D e

LP 740 specifications

The InFocus LP 740 is a highly regarded projector that has made a significant impact in various settings, from educational institutions to corporate environments. Known for its reliability and impressive performance, the LP 740 brings a multitude of features and technologies that cater to the diverse needs of users.

One of the standout features of the InFocus LP 740 is its brightness level. With a remarkable brightness rating of 3,200 ANSI lumens, this projector ensures clear and vibrant images even in well-lit rooms. This makes it an ideal choice for presentations in classrooms or conference halls where ambient light can often compromise image quality.

The LP 740 boasts a native resolution of XGA (1024 x 768 pixels), delivering sharp and detailed images that enhance the overall viewing experience. This native resolution is especially beneficial for displaying text, graphics, and detailed presentations, ensuring that every detail is visible and legible.

In terms of connectivity, the InFocus LP 740 offers a variety of options, including VGA, composite video, and S-Video inputs. This versatility allows users to connect the projector to a wide range of devices, from laptops and desktops to DVD players and other multimedia sources. The inclusion of an audio output also enables users to pair the projector with external speakers for enhanced sound quality.

Another notable technology featured in the LP 740 is its DLP (Digital Light Processing) technology. DLP projectors are known for their superior color accuracy and consistency, providing a more immersive visual experience. The LP 740 delivers vibrant colors and deep blacks, making it well-suited for both business presentations and cinematic displays.

The projector also incorporates advanced cooling technology, which ensures it operates quietly, reducing distractions during presentations. Furthermore, it features a low maintenance design, including a long-lasting lamp life of up to 3,000 hours, which minimizes the need for frequent replacements.

Portability is another key characteristic of the InFocus LP 740. Weighing in at a convenient size, it can be easily transported, making it suitable for individuals who frequently move between different locations for meetings or lectures.

Overall, the InFocus LP 740 combines robust performance with practical features, making it a versatile choice for professionals and educators alike. Its high brightness, advanced DLP technology, and variety of connectivity options make it a reliable solution for a wide array of projection needs. Whether in a boardroom or a classroom, the LP 740 continues to impress with its quality and reliability.
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