Optoma EP709S Manual page 33

Appendices
5. Select the "Change" button under the "Monitor" tab .
6. Click on "Show all devices." Next, select "Standard monitor
If you are using a Notebook:

1. First, follow the steps above to adjust resolution of the computer.
2. Press the toggle output settings. Example :[Fn]+[F4]
If you experience difficulty changing resolutions or your monitor

freezes, restart all equipment including the projector.
Problem: The screen of the Notebook or PowerBook computer
is not displaying a presentation
If you are using a Notebook PC:

Some Notebook PCs may deactivate their own screens when a
second display device is in use. Each has a different way to be
reactivated. Refer to your computer's documentation for detailed
information.
Problem: Image is unstable or flickering
Use "Phase" 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
Adjusts the Focus Ring on the projector lens.

English 32
types" under the SP box; choose the resolution mode you need
under the "Models" box.
Compaq  [Fn]+[F4]
Dell  [Fn]+[F8]
Gateway  [Fn]+[F4]
IBM  [Fn]+[F7]
Mac Apple:
System Preference  Display  Arrangement  Mirror
display
Packard
 [Fn]+[F4]
Hewlett
NEC  [Fn]+[F3]
Toshiba  [Fn]+[F5]