Optoma Technology EP721 Image is out of focus, Image is stretched when displaying 169 DVD title

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Appendices

Image is out of focus

Make sure the lens cap is removed.

Adjusts the Focus Ring on the projector lens.

Make sure the projection screen is between the required distance

3.9to 39.4 feet (1.2 to 12.0 meters) from the projector.

See page 17.

The image is stretched when displaying 16:9 DVD title

When you play anamorphic DVD or 16:9 DVD, the projector will show the best image in 16:9 format on projector side.

If you play 4:3 format DVD title, please change the format as 4:3 in projector OSD.

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

Please setup the display format as 16:9 (wide) aspect ratio type on your DVD player.

Image is too small or too large

Adjust the Zoom Ring on the top of the projector.

Move the projector closer to or further from the screen.

Press [Menu] button on the remote control or projector panel, go to “Display Format” and try the different settings.

Use of Keystone is not recommended.

Image has slanted sides

If possible, reposition the projector so that it is centered on the screen and below the bottom of the screen.

Press [Keystone +/-] button until the sides are vertical on the remote control.

Image is reversed

Select “Setup Projection” from the OSD and adjust the projection direction.

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Contents Table of Contents Important Safety Instruction Safety InformationsClass B emissions limits Precautions Don’t Eye Safety Warnings  Video Compatibility NTSC, NTSC4.43 IntroductionDocumentation Package OverviewMain Unit Product OverviewControl Panel Connection Ports Remote Control Connecting the Projector InstallationConnect to Video Sources Powering On the Projector Powering On/Off the ProjectorLens Cap Powering off the projector Adjusting the Projector’s Height Adjusting the Projected ImageAdjusting Projection Image Size Adjusting the Projector’s Zoom / FocusSelect Keys Control Panel & Remote ControlTemp LED Indicate the projector’s temperature status Four DirectionalButton LaserPC/Mouse ControlVideo Remote ControlOn-screen Display Menus How to operateMenu Tree Contrast Display ModeImage BrightnessTint SaturationImage Color ResetColor Color Temp Image AdvancedDegamma BrilliantColorTMInput Source Format DisplayInput Signal Keystone OverscanZoom Image ShiftLanguage Setup LanguageInformation Hide SetupProjection Projector IDStart Up Logo Security Timer Setup SecuritySecurity First Time Change PasswordPosition Setup SignalPhase FrequencyOptions Volume Auto Power Off min Direct Power OnSleep Timer min Lamp Hours Options Lamp SettingsBrightness Mode Lamp ResetPartial, scrolling or incorrectly displayed image TroubleshootingImage Problems No image appears on-screenImage has vertical flickering bar Image is unstable or flickeringImage has slanted sides Image is stretched when displaying 169 DVD titleImage is out of focus Image is too small or too largeLamp burns out or makes a popping sound Intermission ProblemsProjector Status Indication Projector stops responding to all controlsMessage Reminders If the remote control does not work Remote Control ProblemsReplacing the lamp Lamp Replacement Procedure  Computer Compatibility Compatibility Modes Video Compatibility RS232 Commands RS232 Protocol Function List RS232 CommandsFunction Projector Return Description Ceiling Mount Installation Optoma Global Offices Korean Regulation & Safety notices Remarque à l’intention des utilisateurs canadiens