Optoma Technology EP723, EP728 Image is unstable or flickering, Image has vertical flickering bar

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Appendices

6.Select the “Change” button under the “Monitor” tab.

7.Click on “Show all devices”. Next, select “Standard monitor types” under the SP box; choose the resolution mode you need under the “Models” box.

8.Verify that the resolution setting of the monitor display is lower than or equal to UXGA (1600 x 1200).

If you are using a Notebook:

1.First, follow the steps above to adjust resolution of the computer.

2.Press the toggle output settings. Example: [Fn]+[F4]

Compaq

[Fn]+[F4]

Hewlett

[Fn]+[F4]

Dell

[Fn]+[F8]

Packard

 

 

Gateway [Fn]+[F4]

NEC

 

[Fn]+[F3]

IBM

[Fn]+[F7]

Toshiba

[Fn]+[F5]

Mac Apple:

System Preference Display Arrangement Mirror display

If you experience difficulty changing resolutions or your monitor freezes, restart all equipment including the projector.

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

If you are using a Notebook PC

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

Image is unstable or flickering

Use “Phase” to correct it. See page 36 for more information.

Change the monitor color setting on your computer.

Image has vertical flickering bar

Useinformation.“Frequency” to make an adjustment. See page 36 for more

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

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Contents Table of Contents Safety Informations Important Safety InstructionClass B emissions limits Precautions Don’t Eye Safety Warnings Introduction  Video Compatibility NTSC, NTSC4.43Package Overview DocumentationProduct Overview Main UnitControl Panel Connection Ports Remote Control Installation Connecting the ProjectorConnect to Video Sources Powering On/Off the Projector Powering On the ProjectorLens Cap Powering off the projector Adjusting the Projected Image Adjusting the Projector’s HeightAdjusting the Projector’s Zoom / Focus Adjusting Projection Image SizeFour Directional Control Panel & Remote ControlTemp LED Indicate the projector’s temperature status Select KeysControl LaserPC/Mouse ButtonRemote Control VideoHow to operate On-screen Display MenusMenu Tree Brightness Display ModeImage ContrastSaturation TintReset Image ColorColor BrilliantColorTM Image AdvancedDegamma Color TempInput Source Display FormatInput Signal Image Shift OverscanZoom KeystoneSetup Language LanguageProjector ID SetupProjection Information HideStart Up Logo Setup Security Security TimerSecurity Change Password First TimeFrequency Setup SignalPhase PositionOptions Volume Direct Power On Auto Power Off minSleep Timer min Lamp Reset Options Lamp SettingsBrightness Mode Lamp HoursNo image appears on-screen TroubleshootingImage Problems Partial, scrolling or incorrectly displayed imageImage is unstable or flickering Image has vertical flickering barImage is too small or too large Image is stretched when displaying 169 DVD titleImage is out of focus Image has slanted sidesProjector stops responding to all controls Intermission ProblemsProjector Status Indication Lamp burns out or makes a popping soundMessage Reminders Remote Control Problems If the remote control does not workReplacing the lamp Lamp Replacement Procedure Compatibility Modes  Computer Compatibility Video Compatibility RS232 Commands RS232 Commands RS232 Protocol Function ListFunction Projector Return Description Ceiling Mount Installation Optoma Global Offices Korean Regulation & Safety notices Remarque à l’intention des utilisateurs canadiens