Optoma EP731 User Manual - Page 27

Problem: Image has vertical flickering bar

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English Appendices Problem: The screen of the notebook or PowerBook computer is not displaying your presentation. X If you are using Notebook PC: Some Notebook PCs may deactivate their own monitor's screen when a second display device is in use. Each of them has a different way to be reactivated. Refer to your computer documentation for detailed information. X If you are using an Apple PowerBook: In Control Panels, open the PowerBook Display to select Video Mirroring "On". Problem: Image is unstable or flickering X Use "Tracking" to correct it. X Change the monitor color setting from your computer. Problem: Image has vertical flickering bar X Use "Frequency" to make an adjustment. X Check and reconfigure the display mode of your graphic card to make it compatible with the product. Problem: Image is out of focus X Adjust the Focus Ring on the projector lens. X Make sure the projection screen is placed witin recommended range of 4.0 to 39.4 feet (1.2 m to 12 meters). 27

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Appendices
Problem: The screen of the notebook or PowerBook computer
is not displaying your presentation.
If you are using Notebook PC:
Some Notebook PCs may deactivate their own monitor’s screen when a second
display device is in use. Each of them has a different way to be reactivated.
Refer
to your computer documentation for detailed information.
If you are using an Apple PowerBook:
In Control Panels, open the PowerBook Display to select Video Mirroring “On”.
Problem: Image is unstable or flickering
Use “Tracking” to correct it.
Change the monitor color setting from your computer.
Problem: Image has vertical flickering bar
Use “Frequency” to make an adjustment.
Check and reconfigure the display mode of your graphic card to make it compatible
with the product.
Problem: Image is out of focus
Adjust the Focus Ring on the projector lens.
Make sure the projection screen is placed witin recommended range of 4.0 to 39.4
feet (1.2 m to 12 meters).