Dukane 28A7250 Problem Image is unstable or flickering, Problem Image has vertical flickering bar

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6.Under “Manufacturers”, select “Standard monitor types”

7.Verify that the resolution setting of the monitor display is less than or equal to 800x600.

4If you are using a Notebook PC:

1.You are required to implement above steps of resolution setting of computer first.

2.Switch the Notebook PC display to the “external display only” or “CRT only” mode.

4If you are using an Apple Macintosh or Apple PowerBook:

1.Insert a Mac signal adapter and change the mode into Macintosh 13” of 640 x

480resolution.

2.Change the adapter into VGA mode for IBM PC 640 x 480, 800 x 600, or 1024 x 768 display settings.

4If you are experiencing difficulty in changing resolutions or your monitor freezes, restart all the equipment and the projection display.

Problem: The screen of the Notebook or PowerBook computer is not display- ing your presentation.

4If you are using Notebook PC:

Some Notebook PCs may deactivate their own computers’ screens when a second display device is in use. Each of them has different way to be reactivated. Refer to your computer’s documentation for detailed information.

4If you are using an Apple PowerBook:

In Control Panels, open the PowerBook Display to select Video Mirroring “On”.

Problem: Image is unstable or flickering

4Use “Tracking” to correct it.

4Change the monitor color setting from your computer.

Problem: Image has vertical flickering bar.

4Use “Frequency” to make an adjustment.

4Check and reconfigure the display mode of your graphic card to make it compatible with the product.

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Contents 28A7250 ImagePro Projector Page Table of Contents Precautions Usage NoticeIntroduction About the ProductPackage Overview Main Unit InstallationProduct Overview Remote Control Start Your Installation Connecting the Projection DisplayRemote Control Connections Setting Up ProcedurePowering Off the Projection Display Powering On/Off the Projection DisplayPowering On the Projection Display Adjusting the Image Size Positioning the projection displayPanel Control User ControlsUser Control Overview OSD Menus LanguageFunction Descriptions Basic FunctionsPresentation Functions computer source Tracking Frequency Custom Memory Auto ImagePresentation Functions -- video source 4Color/TintTint from OSD menus 4Freeze Press the Freeze button to still the screen imageTroubleshooting Problem No image appears on screenProblem Partial, scrolling or incorrectly displayed image AppendicesProblem Image is unstable or flickering Problem Image has vertical flickering barMaintenance Changing the LampBottom Screws Head Screw Fuse Changing Procedure Changing the FuseSpecifications IBM & Vesa VGAMode Resolution Frequency KHz Compatibility ModesLegal Information Audio Visual Products