Optoma Technology EP759 manual Appendices, Troubleshooting, Problem No image appears on screen

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Appendices

Troubleshooting

If you experience trouble with the projector, refer to

the following information. If the problem persists, please contact your local reseller or service center.

Problem: No image appears on screen.

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

4Ensure the pins of connectors are not crooked or broken.

4Check if the projection lamp has been securely installed. Please refer to the “Replacing the lamp” section.

4Make sure you have removed the lens cap and the projector is switched on.

4Press A/V Mute button to maker sure the image has not been turned off temporarily.

Problem: Partial, scrolling or incorrectly displayed image.

4Press the “Sync” button on the Remote Control or Press the “Re-Sync” button on the Control Panel.

4If you use a PC:

If the resolution of your computer is higher than 1024 x 768. Follow the steps outlined below to reset the resolution.

For Windows 3.x:

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

2.Verify that your display resolution setting is less than or equal to 1024 x 768.

For Windows 95,98,2000,XP:

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

2.Select the “Setting” tab.

3.In the “Desktop Area” you will find the resolution setting. Verify that the resolution setting is less than or equal to 1024 x 768 resolution.

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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Contents Table of Contents Precautions Usage NoticeDon’t Introduction Product Features‹ Picture-In-Picture dual image Package Overview Product Overview Main UnitControl Panel Connection Ports Remote Control with Mouse Function & Laser Pointer IR LedsInstallation Connecting the ProjectorPowering On/Off the Projector Powering On the ProjectorPowering Off the Projector Adjusting the Projected Image Adjusting the Projector Image HeightAdjusting the Projector Zoom / Focus Adjusting Projection Image SizeControl Panel & Remote Control User ControlsUsing the Remote Control Power Display ModeSync Display FormatComponent Source LockVideo How to operate On Screen Display MenusLanguage LanguageImage-I Computer Mode Colour saturation Image-I Video ModeTint Image-II Keystone Keystone CorrectionPosition Color TempReset AdvanceAudio Management Menu LocationProjection LampDisplay Mode Source LockSource Change SwapTroubleshooting Problem No image appears on screenProblem Partial, scrolling or incorrectly displayed image AppendicesProblem Image has vertical flickering bar Problem Image is unstable or flickeringProblem Image is out of focus Problem The image is outstretched when displaying 169 DVD Problem Image is reversedProblem Lamp burns out or makes a popping sound Problem LED lighting messageProblem Message Reminders Lamp Changing Procedure Replacing the lampCompatibility Modes Analog DigitalCeiling Mount Installation Screw type M3 Maximum screw length 6mm