Optoma Technology EP771RFBA, TX771 manual Image Problems, Lamp Problems

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Appendices

Image Problems

Problem: No image appears on the screen

1.Verify the settings on your notebook or desktop PC.

2.Turn off all equipment and power up again in the correct order.

Problem: The image is blurred

1.Adjust the Focus on the projector.

2.Press the Auto button on the remote control or projector.

3.Ensure the projector-to-screen distance is within the 10-meter (33-feet) specified range.

4.Check that the projector lens is clean.

Problem: The image is wider at the top or bottom (trapezoid effect)

1.Position the projector so it is as perpendicular to the screen as possible.

2.Use the Keystone button on the remote control or projector to correct the problem.

Problem: The image is reversed or upside down

Check the Projection setting on the Utility menu of the OSD.

Problem: The image is streaked

1.Set the Frequency and Tracking settings on the Utility menu of the OSD to the default settings.

2.To ensure the problem is not caused by a connected PC’s video card, connect to another computer.

Problem: The image is flat with no contrast

Adjust the Contrast setting on the Main menu of the OSD.

Problem: The color of the projected image does not match the source image.

Adjust the Color Temperature and Gamma settings on the Main menu of the OSD.

Lamp Problems

Problem: There is no light from the projector

1.Check that the power cable is securely connected.

2.Ensure the power source is good by testing with another electrical device.

3.Restart the projector in the correct order and check that the Power LED is green.

4.If you have replaced the lamp recently, try resetting the lamp connections.

5.Replace the lamp module.

6.Put the old lamp back in the projector and have the projector serviced.

Problem: The lamp goes off

1.Power surges can cause the lamp to turn off. Press the power button twice to turn off the projector. When the Ready LED is on, press the power button.

2.Replace the lamp module.

3.Put the old lamp back in the projector and have the projector serviced.

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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