Optoma Technology TXR774 manual Troubleshooting, Image Problems

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Appendices

Troubleshooting

If you experience a problem with your projector, please refer to the follow- ing information. If a problem persists, please contact your local reseller or service center.

Image Problems

No image appears on-screen

Ensure all the cables and power connections are correctly and securely connected as described in the Installation section.

Ensure all the pins of connectors are not bent or broken.

Check if the projection lamp has been securely installed. Please refer to the Replacing the lamp section.

Make sure you have removed the lens cap and the projector is switched on.

Partial, scrolling or incorrectly displayed image

Press “Re-Sync” on the remote.

If you are using a PC:

For Windows 95, 98, 2000, XP:

1.Open the My Computer icon, the Control Panel folder, and then double click on the Display icon.

2.Select the Settings tab.

3.Verify that your display resolution setting is lower than or

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4.Click on the Advanced Properties button.

If the projector is still not projecting the whole image, you will also need to change the monitor display you are using. Refer to the following steps.

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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

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51English

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Contents Table of Contents Important Safety Instruction Safety InformationHFHSWSURSHUO\TXDOLÀHGVHUYLFHSHUVRQQHO Precautions RQW UDWKHUWKDQSODFLQJLWRQÁRRURUWDEOHWRS Eye Safety WarningsIntroduction Product FeaturesRCA Package OverviewMain Unit Product OverviewControl Panel Rear View Remote Control Connect to Computer / Notebook Connecting the ProjectorConnect to Video Sources Powering On the Projector Powering On / Off the ProjectorThecoolingfanscontinuetooperateforabout10secondsforcooling Powering Off the ProjectorAdjusting the Projector’s Height Adjusting the Projected ImageAdjusting Projection Image Size Adjusting the Zoom / Focus 0.7 XGA SeriesHeight Width Adjusting the Zoom / Focus 0.55 XGA SeriesAdjusting the Zoom / Focus 0.65 Wxga Series User Controls Control Panel & Remote ControlRemote Control DVI-I On-screen Display Menus How to operateMenu Tree Contrast Display ModeImage BrightnessAdvanced Color SettingSaturation TintBias Image Color SettingReset GainImage Advanced Image Advanced Input Source Format DisplayImage Shift 169 only OverscanZoom Image ShiftMenu Location SetupLanguage ProjectionAudio SignalSecurity Projector IDSetup Language Setup Signal PhasePosition Security Timer Setup SecurityChange Password Enable or disable the security password Security SettingAudio Input Setup AudioVolume MuteClose Caption Setup AdvancedLogo Logo CaptureNetwork Setup NetworkInformation Hide OptionsSource Lock High AltitudeLamp Setting Keypad LockBackground Color Options Advanced Direct Power OnAuto Power Off Sleep TimerLamp Reminder Options Lamp SettingBrightness Mode Lamp HourLamp Reset LANRJ45 LANRJ45 RJ45 models onlyClick Properties User Controls Image Problems TroubleshootingPDJHLVXQVWDEOHRUÁLFNHULQJ Image is stretched when displaying 169 DVD title Intermission ProblemsProjector Status Indication Message Reminders There is no soundSound is distorted Replacing the Lamp Cleaning the Lens Cleaning the ProjectorComputer Compatibility Compatibility ModesApple Mac Compatibility RS232 Commands RS232 Protocol Function List RS232 Commands6LJQDO UHTXHQF\ VG a Ceiling Installation 2SWRPD*OREDO2IÀFHV Latin America FCC notice Regulation & Safety noticesDeclaration of Conformity for EU countries Operation conditions