Optoma Technology EP718 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 1024 x 768. 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 1024x 768.

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 1024 x 768 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 Usage Notice PrecautionsIntroduction Product FeaturesPackage Overview Main Unit Product OverviewPanel Control Connection PortsRemote Control Laser Point Connecting the Projector to Desktop Computer InstallationConnecting the Projector to Portable Computer If you use the video cable Connecting the Projector to Other Video SourcesIf you use the s-video cable Powering On the Projection Display Power On/Off the Projection DisplayPowering Off the Projection Display Adjusting the Projector Height Adjusting the Projected ImageAdjusting the Projector Focus User Controls Zoom In Computer mode only VolumePIP Computer mode only ResetOSD Menus 4Tracking 4Tint Video mode only4Color Video mode only 4Volume4Treble 416 9 Video mode only44 3 Video mode only 4PIP Computer mode only4Exit Menu 4Lamp Reset4Reset All 4Lamp WarningAppendices Problem No image appears on screenProblem Partial, scrolling or incorrectly displayed image Problem Image is out of focus Problem Image is unstable or flickeringProblem Image has vertical flickering bar Problem The screen is outstretched when displaying 169 DVD To replace the lamp module, reverse the previous steps Lamp Changing ProcedureSpecifications Compatibility Modes