Optoma Technology TH7500NL manual Appendices, Troubleshooting

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Appendices

Troubleshooting

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

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.

Ensure that the “AV Mute” feature is not turned on.

Partial, scrolling or incorrectly displayed image

Press “Re-SYNC” on the remote control or control panel.

If you are using a PC:

For Windows 95, 98, 2000, XP, Windows 7:

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 equal to WUXGA (1920 × 1200).

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.

5.Verify the resolution setting is lower than or equal to WUXGA

(1920 × 1200).

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

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Contents Table of Contents Safety Information Usage NoticePrecautions Do not Eye Safety Warnings Product FeaturesIntroduction Package OverviewProduct Overview Main UnitControl Panel Input/Output Connections Remote Control Connecting the Projector Install the Projection LensConnect to Computer/Notebook Connect to Video Sources Powering the projector On / Off Powering On the ProjectorPowering off the projector See pages For more information Adjusting the Projected Image Adjusting the Projector’s HeightAdjusting the Projector’s Position Lens Control Panel & Remote Control User ControlsUsing the Remote Control Hdmi How to operate On-screen Display MenusMenu Tree ImageSetup Brightness Display ModeContrast Color SharpnessTint Image Advanced Color Space Color SettingsInput Source Display FormatZoom Digital Zoom Edge MaskImage Shift KeystoneAuto Keystone Screen PIP LocationPIP Size PIP SourceLanguage ProjectionMenu Location Screen TypeProjector ID Lens Function Setup Security Security TimerChange Password SecurityUser Controls Setup Signal RGB PhaseFrequency PositionSetup Signal Video White LevelBlack Level SaturationSetup Advanced LogoLogo Capture Closed CaptioningSetup Network How to use web browser to control your projector Click Change settings of this connection Source Lock High AltitudeInformation Hide Keypad LockReset VGA OutOption Remote Settings FunctionIR Function Remote CodeUser Controls Option Advanced Lamp Settings Information Brightness ModeInformation Troubleshooting AppendicesImage is unstable or flickering Image is reversed Projector stops responding to all controls On Screen Messages Replacing the lamp Lamp Replacement Procedure Compatibility Modes  Computer Compatibility PCMode Resolution Sync Hz Sync KHz Analog Digital  Video Compatibility Computer Compatibility MAC RS232 Commands and Protocol Function List RS232 Pin AssignmentsRS232 Protocol Function List Send to projectorIRE Send from projector automatically Ceiling Mount Installation Optoma Global Offices USALatin America Regulation & Safety Notices FCC noticeRemarque à l’intention des utilisateurs canadiens