InFocus LP 740 warranty Replacing the Projection Lamp

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M a i n t e n a n c e	&	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 setup Information 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