Optoma Technology TX771, EP771RFBA Common problems and solutions, Tips for Troubleshooting

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Appendices

Common problems and solutions

These guidelines provide tips to deal with problems you may encounter while using the projector. If the problem remains unsolved, contact your dealer for assistance.

Often after time spent troubleshooting, the problem is traced to something as simple as a loose con- nection. Check the following before proceeding to the problem-specific solutions.

Use some other electrical device to confirm that the electrical outlet is working.

Ensure the projector is turned on.

Ensure all connections are securely attached.

Ensure the attached device is turned on.

Ensure a connected PC is not in suspend mode.

Ensure a connected notebook computer is configured for an external display. (This is usu- ally done by pressing an Fn-key combination on the notebook.)

Tips for Troubleshooting

In each problem-specific section, try the steps in the order suggested. This may help you to solve the problem more quickly.

Try to pin point the problem and thus avoid replacing non-defective parts.

For example, if you replace batteries and the problem remains, put the original batteries back and go to the next step.

Keep a record of the steps you take when troubleshooting-the information may be useful when calling for technical support or for passing on to service personnel.

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Contents Table of Contents Table of Contents Precautions Usage NoticePower Safety Main Features Packing Checklist IntroductionFront-right View Views of ProjectorTop view-On-screen Display OSD buttons and LEDs 3 4 5 6RE-SYNC Rear view VGA OUTLabel Description Bottom view Remote Control DVI Remote Control Operating Range Projector and Remote Control ButtonsInserting the Remote Control Batteries Setup and Operation Connecting Input DevicesSetup 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 Zoom, Focus and Keystone Adjusting the VolumeNavigating the OSD OSD Menu ControlsSetting the OSD Language Menu Setting OSD Menu OverviewImage Menu Image Menu Functions Available for Connected Source RGB DVIDisplay 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 Language Menu 繁體中文Management Menu Menu Setting Appendices Replacing the Projection LampAppendices Appendices Resetting the Lamp Cleaning the Projector Using the Kensington LockCommon problems and solutions Tips for TroubleshootingLED Error Messages AppendicesImage Problems Lamp ProblemsRemote Control Problems Audio ProblemsHaving the Projector Serviced Optoma Global OfficesSpecifications Projection Distance V.S. Projection SizeTiming Mode Table Signal Resolution Frequency H Video Digital AnalogProjector Dimensions Regulatory Compliance Copyright