Optoma Technology EP771RFBA, TX771 manual Cleaning the Projector, Using the Kensington Lock

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Appendices

Cleaning the Projector

Cleaning the projector to remove dust and grime will help ensure trouble-free operation.

Warning:

1.Be sure to turn off and unplug the projector at least an hour before cleaning. Failure to do so could result in a severe burn.

2.Use only a dampened cloth when cleaning. Do not allow water to enter the ventilation openings on the projector.

3.If a little water gets into the projector interior while cleaning, leave unplugged in a well-ventilated room for several hours before using.

4.If a lot of water gets into the projector interior when cleaning, have the projector serviced.

Cleaning the Lens

You can purchase optic lens cleaner from most camera stores. Refer to the following to clean the pro- jector lens.

1.Apply a little optic lens cleaner to a clean soft cloth. (Do not apply the cleaner directly to the lens.)

2.Lightly wipe the lens in a circular motion.

Caution:

1.Do not use abrasive cleaners or solvents.

2.To prevent discoloration or fading, avoid getting cleaner on the projector case.

Cleaning the Case

Refer to the following to clean the projector case.

1.Wipe off dust with a clean dampened cloth.

2.Moisten the cloth with warm water and mild detergent (such as used to wash dishes), and then wipe the case.

3.Rinse all detergent from the cloth and wipe the projector again.

Caution:

To prevent discoloration or fading of the case, do not use abrasive alcohol-based cleaners.

Using the Kensington® Lock

If you are concerned about security, attach the projector to a permanent object with the Kensington slot and a security cable.

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Contents Table of Contents Table of Contents Usage Notice PrecautionsPower Safety Main Features Introduction Packing ChecklistViews of Projector Front-right View3 4 5 6 Top view-On-screen Display OSD buttons and LEDsRE-SYNC VGA OUT Rear viewLabel Description Bottom view Remote Control DVI Projector and Remote Control Buttons Remote Control Operating RangeInserting the Remote Control Batteries Connecting Input Devices Setup and OperationSetup and Operation Starting and Shutting down the Projector Setup and Operation Setting an Access Password Security Lock Setup and Operation Adjusting the Projector Level Adjusting the Volume Adjusting the Zoom, Focus and KeystoneOSD Menu Controls Navigating the OSDSetting the OSD Language OSD Menu Overview Menu SettingImage Menu RGB DVI Image Menu Functions Available for Connected SourceDisplay Menu Display Menu Functions Available for Connected Source Setup Menu Setup menu functions are available to all video sources Setup Menu Functions Available for Connected Source Color setting Menu 繁體中文 Language MenuManagement Menu Menu Setting Replacing the Projection Lamp AppendicesAppendices Appendices Resetting the Lamp Using the Kensington Lock Cleaning the ProjectorTips for Troubleshooting Common problems and solutionsAppendices LED Error MessagesLamp Problems Image ProblemsAudio Problems Remote Control ProblemsOptoma Global Offices Having the Projector ServicedProjection Distance V.S. Projection Size SpecificationsSignal Resolution Frequency H Video Digital Analog Timing Mode TableProjector Dimensions Regulatory Compliance Copyright