Optoma Technology EP727, EP728, EP723, EP721 manual Options

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User Controls

Options

Menu Location

Choose the menu location on the display screen.

Source Lock

On: The projector will search specified connection port.

Off: The projector will search for other signals if the current input signal is lost.

High Altitude

Choose “On” to turn on High Altitude mode. Operates the fans at full speed continuously to allow for proper high altitude cooling of the projector.

Keypad Lock

When the keypad lock function is on, the control panel will be locked, but the projector can still be operated by the remote control. If canceling this function, use the remote control or press the “Enter” key on the control panel for 7 seconds to turn it off.

Background Color

Use this feature to display a “Blue” or “Black” screen when no signal is available.

Mute

Choose the “On” to turn mute on.

Choose the “Off” to turn mute off.

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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 / FocusTemp LED Indicate the projector’s temperature status Control Panel & Remote ControlFour Directional Select KeysPC/Mouse LaserControl ButtonVideo Remote ControlOn-screen Display Menus How to operateMenu Tree Image Display ModeBrightness ContrastTint SaturationImage Color ResetColor Degamma Image AdvancedBrilliantColorTM Color TempInput Source Format DisplayInput Signal Zoom OverscanImage Shift KeystoneLanguage Setup LanguageProjection SetupProjector ID Information HideStart Up Logo Security Timer Setup SecuritySecurity First Time Change PasswordPhase Setup SignalFrequency PositionOptions Volume Auto Power Off min Direct Power OnSleep Timer min Brightness Mode Options Lamp SettingsLamp Reset Lamp HoursImage Problems TroubleshootingNo image appears on-screen Partial, scrolling or incorrectly displayed imageImage has vertical flickering bar Image is unstable or flickeringImage is out of focus Image is stretched when displaying 169 DVD titleImage is too small or too large Image has slanted sidesProjector Status Indication Intermission ProblemsProjector stops responding to all controls Lamp burns out or makes a popping soundMessage 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