Optoma Technology H77 manual Appendices, Troubleshooting, Problem No image appears on screen

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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.

Problem: No image appears on screen.

4Ensure that all the cables and power cord are correctly and securely connected as described in the “Installation” section.

4Ensure that connector pins are not bent or broken.

4Make sure that the projection lamp has been securely installed. Please refer to the “Replacing the lamp” section.

4Ensure that you have removed the lens cap and that the projector is turned on.

4Ensure that the “Hide” feature is not enabled.

Problem: Partial, scrolling, or incorrectly displayed images.

English

4Press “Re-Sync” on the remote control or control panel.

4If using a PC:

For Windows 3.x:

1.In the Windows Program Manager, double click the “Windows Setup” icon in the Main group.

2.Verify that your display resolution setting is less than or equal to 1280 x 720.

For Windows 95, 98, 2000, XP:

1.Open the “My Computer” icon. Next, open the “Control Panel” folder, and double click the “Display” icon.

2.Select the “Settings” tab.

3.(Above in “Windows 3.x). Click on the “Advanced Properties” button. Verify that your display resolution setting is less than or equal to 1280 x 720.

If the projector is still not projecting the image, you may need to adjust your monitor display setting. To do this, please refer to the following instructions.

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Contents Table of Contents Usage Notice PrecautionsDo not Introduction Product FeaturesPackage Overview Main Unit Product OverviewControl Panel Connection Ports Wireless Remote Control Connecting the Projector InstallationPowering On the Projector Powering On/Off the ProjectorPowering Off the Projector Adjusting the Projected Image Adjusting the Projector’s HeightTo raise or lower the projector Adjusting the Projector’s Zoom/Focus User Controls Control Panel & Remote ControlRe-Sync ContrastHue Keystone & V.KeystoneUsing the Control Panel Power Lens ShiftSource Onscreen Display Menus How to OperateMenu Tree Color ModeContrast BrightnessGamma ResetWhite Peaking Image ModeAdvanced Adjustment SignalUser Controls Source Lock Eco ModeLanguage BulbVertical Shift ProjectionFormat KeystoneDigital Zoom Appendices TroubleshootingProblem No image appears on screen Problem Partial, scrolling, or incorrectly displayed imagesProblem Image is unstable or flickering Problem Image has a vertical flickering barProblem Image is out of focus Problem Message Reminders Problem Image is reversedProblem Lamp burns out or makes a popping sound Problem LED lighting messageReplacing the Lamp Lamp Replacing ProcedureScrew type M6,M8,M10 Screw length 10,16,55 m/m Ceiling Mount Installation