Optoma Technology EP753, EP755 manual Problem Image is unstable or flickering

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English

Appendices

Problem : The screen of the Notebook or PowerBook computer is not displaying your presentation.

4If you are using Notebook PC:

Some Notebook PCs may deactivate their own computers’ screen 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.

Problem : Image is out of focus

4Adjust the Focus Ring on the projector lens.

4Make sure the projection screen is between the required distance 3.7ft.(1.1m)~ 40.7ft.(12.4m) from the projector.

Problem : The screen is outstretched when displaying 16:9 DVD.

The projector itself will automatically detect 16:9 DVD and adjust the aspect ratio by digitization to full screen with 4:3 default setting.

If the projector is still outstretched, you will also need to adjust the aspect ratio by referring to the following:

4Please select 4:3 aspect ratio type on your DVD player if you are playing a 16:9 DVD.

4If you can not select 4:3 aspect ratio type on your DVD player, please select 4:3 On Screen-Display(OSD) function of the projector for your display.

Problem : Image is reversed.

4To open “Menu” then select “Management” to adjust the projection.

Problem : Lamp burns out or makes a popping sound

4When the lamp reaches its end of life, it will burn out and may make a loud popping sound. If this happens, the projector will not turn back on until the lamp module has been replaced. To replace the lamp, follow the procedures in the “Changing the Lamp”.

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Contents Digital Projector EP755/753 Trademarks Table of Contents Usage Notice PrecautionsIntroduction Product FeaturesPackage Overview Main Unit Product OverviewConnection Ports Panel ControlLaser Pointer Caution Remote Control with Mouse Function & Laser PointerConnecting the Projector InstallationPowering On the Projector Power On/Off the ProjectorPowering Off the Projector Adjusting the Projector Height Adjusting the Projected ImageAdjusting Projection Image Size Adjusting the Projector Zoom / FocusUser Controls Panel Control & Remote ControlUp Computer mode only On-Screen Display Menus How to operateImage-I Computer mode Color Image-I Video modeTint SharpnessImage-II Computer mode Keystone Correction Image-II Video modeLanguage AudioManagement Appendices Problem Image is unstable or flickering Changing the lamp Lamp Changing ProcedureNTSC/NTSC 4.43/PAL/PAL-M/PAL-N SpecificationsCompatibility Modes Mode Resolution