Sony VGN-TT250N - Manual (Page 90)

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Using Peripheral Devices
Connecting an Optical Disc Drive
If your computer is not equipped with a built-in optical disc drive, you need to connect an external optical disc drive (not
supplied) for disc operations.
Connecting an Optical Disc Drive
!
Be sure to connect an external optical disc drive before you launch any preinstalled disc operation program.
To connect an optical disc drive
1 Plug the power cord (if any) of your external optical disc drive (not supplied) (1) into an AC outlet.
2 Choose the USB port (2) you prefer to use.
3 Plug one end of a USB cable (not supplied) (3) into the USB port, and the other end to the optical disc drive.
See the manual that came with your external optical disc drive for the detailed instructions on connecting the USB cable
to the drive.