Sony PCG-FX270K Manual

You can use a projector, such as the Sony LCD Projector, as an external display.

When you connect an external display to the monitor jack, you can toggle the 
output between the Liquid Crystal Display (LCD), the external monitor, or both 
devices.

Use the 

Fn+F7

 keys to select a display. See also “Selecting the Display Mode”  

for more information.

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See the manual that came with your multimedia computer display for more 
information on its installation and use.

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See the manual that came with your projector for more information on its installation 
and use.