Optoma Technology EP723, EP728, EP727, EP721 manual Overscan, Zoom, Image Shift, Keystone

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User Controls

Display

Overscan

Overscan function removes the noise in a video image. Overscan the image to remove video encoding noise on the edge of video source.

Zoom

Press the to reduce the size of an image.

Press the to magnify an image on the projection screen.

H Image Shift

Shifts the projected image position horizontally.

V Image Shift

Shifts the projected image position vertically.

V Keystone

Press the or to adjust image distortion vertically and makes a squarer image.

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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