Optoma Technology EP705H specifications Appendices, Problem No image appears on screen

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Appendices

Troubleshooting

If you are experiencing trouble with the projection display, refer to the following. If the problem persists, please contact your local dealer or our service center.

Problem: No image appears on screen.

4Ensure all the cables and power connections are correctly and securely connected as described in the “Installation” section.

4If the projector is plugged into a power strip, make sure the power strip is turned on.

4Ensure the pins of connectors are not crooked or broken.

4Check if the projection lamp has been securely installed. Please refer to the “Changing the lamp” section.

4Make sure you have removed the lens cap and the projector is switched on.

Problem: Partial, scrolling or incorrectly displayed image.

4Press the “Resync”button on the Remote Control.

4If you are using a PC:

If the resolution of your computer is higher than 800 x 600. Follow the steps outlined below to reset the resolution.

For Windows 3.x:

1.In the Windows Program Manager, click the “Windows Setup” icon in the Main group.

2.Verify that your display resolution setting is less than or equal to 800 x 600.

For Windows 95:

1.Open “My Computer” icon, the “Control Panel” folder, and then double click the “Display” icon.

2.Select the “Setting” tab.

3.In the “Desktop Area” you will find the resolution setting. Verify that the resolution setting is less than or equal to 800 x 600 resolution.

If the projection display is still not projecting the whole image, you will need to also change the monitor display you are using. Refer to the following steps.

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Contents Table of Contents Precautions Usage NoticeProduct Features IntroductionPackage Overview Product Overview Main UnitConnection Ports Panel ControlRemote Control Installation Connecting the Projector to Desktop ComputerConnecting the Projector to Portable Computer Connecting the Projector to Other Video Sources If you use the video cableIf you use the s-video cable Power On/Off the Projection Display Powering On the Projection DisplayPowering Off the Projection Display Adjusting the Projected Image Adjusting the Projector HeightImage Size Adjustment User Controls Power / StandbyReset MenuZoom Out Computer mode only VolumeZoom In Computer mode only EnterOn-Screen Display Menus 4Volume 4Tint Video mode only4Color Video mode only 4Tracking4Mute Video mode only4Treble 4Mono / Stereo / Stereo-enhance4Lamp Warning 4Lamp Reset4Reset All 4Exit MenuProblem Partial, scrolling or incorrectly displayed image Problem No image appears on screenAppendices Problem Image has vertical flickering bar Problem Image is unstable or flickeringProblem Image is out of focus Problem The screen is outstretched when displaying 169 DVD Lamp Changing Procedure To replace the lamp module, reverse the previous stepsSpecifications Compatibility Modes