Optoma EP721 User Manual

42

English

 6.  Select the “Change” button under the “Monitor” tab.
 7.  Click on “Show all devices”. Next, select “Standard monitor 

types” under the SP box; choose the resolution mode you need 

under the “Models” box. 

 8.  Verify that the resolution setting of the monitor display is 

lower than or equal to UXGA (1600 x 1200). 



 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.

 The screen of the Notebook or PowerBook computer is not 

displaying your 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 manual for detailed  

information.

 Image is unstable or flickering



 

Use “Phase” to correct it. See page 36

 

for more information.



 

Change the monitor color setting on your computer.

 Image has vertical flickering bar



 

Use “Frequency” to make an adjustment. See page 36 for more 

information.



 Check and reconfigure the display mode of your graphic card to 

make it compatible with the projector. 

Compaq    [Fn]+[F4]

Dell   

[Fn]+[F8]

Gateway  [Fn]+[F4]

IBM   

[Fn]+[F7]

Mac Apple: 

System Preference  Display  Arrangement  Mirror 

display

Hewlett 

  [Fn]+[F4]

Packard 

NEC   

[Fn]+[F3]

Toshiba    [Fn]+[F5]