Lenovo IdeaPad U330 - Manual (Page 69)

Chapter 6. Safety, Use, and Care Information
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terminals and/or the connector terminals on a power adapter, which can
eventually result in overheating.
Always connect power cords and signal cables in the correct order and
ensure that all power cord connectors are securely and completely plugged
into receptacles.
Do not use any power adapter that shows corrosion at the ac input pins or
shows signs of overheating (such as deformed plastic) at the ac input or
anywhere on the power adapter.
Do not use any power cords where the electrical contacts on either end
show signs of corrosion or overheating or where the power cord appears to
have been damaged in any way.
Lenovo IdeaPad U330 UG V2.0_en.book Page 60 Thursday, May 14, 2009 5:05 PM