Optoma Technology EP550 Appendices, Troubleshooting, Problem No image appears on screen

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Appendices

Troubleshooting

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

Problem: No image appears on screen.

4Press “Power on/Standby” button.

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

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

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

4Ensure the cooling fan is on. If not, you may need to change the fuse. Please refer to the “Changing the fuse” section.

Problem: Partial, scrolling or incorrectly displayed image.

4If you are using a PC:

Resolution of your computer is higher than 800x600. 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 800x600.

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 800x600 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.

4.Follow above steps 1~2. Click on the “Change Display Type” button.

5.Select the “Change” button under the “Monitor Type” box.

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Contents Table of Contents Usage Notice PrecautionsAbout the Product IntroductionPackage Overview Installation Product OverviewMain Unit Remote Control Connecting the projection display Start Your InstallationPositioning the projection display Setting up the projection displayUser Controls User Control OverviewPanel control Language OSD MenusBasic Functions Function DescriptionsPresentation Functions computer source Auto Image Tracking Frequency Custom Memory4Freeze Press the Freeze button to still the screen image Presentation Functions -- video source4Color/Tint Tint from OSD menusAppendices TroubleshootingProblem No image appears on screen Problem Partial, scrolling or incorrectly displayed imageProblem Image has vertical flickering bar Problem Image is unstable or flickeringFor 800 x 600 Resolution Connecting a Macintosh Desktop ComputerConnecting an Apple PowerBook Computer For 640 x 480 ResolutionChanging the lamp MaintenanceChanging the fuse Vesaxga SpecificationsCompatibility Modes Mode Resolution Frequency KHz