Sony VGN-FS415E User Manual page 110

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Precautions
Do not use cut or damaged connection cables.
If the computer is brought directly from a cold location to a warm one, moisture may condense inside the computer. In this
case, allow at least one hour before turning on the computer. If any problems occur, unplug the computer and contact
VAIO-Link.
Make sure you disconnect the power cord before cleaning the computer.
To avoid losing data if the computer is damaged, back up your data regularly.