Sony computer User Manual

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How do I switch the computer screen (LCD) from LCD to TV? 
Press the Fn+F7 keys to view the image on either the computer screen (LCD) or the TV. See 
 for more
information. 
   
The Fn+F7 key combination will not work once a DVD is inserted into the optical drive. Switching the display
while a DVD is playing may cause the computer to malfunction, and you may need to restart the DVD software. 
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