Using The Pc Card Lock - IBM ThinkPad Dock User Manual

Using the PC Card lock

To secure PC Cards in the PC Card slots, set the PC Card lock to the locked
position and attach the mechanical lock to the security keyhole as follows:
ThinkPad Dock
1. Turn the ThinkPad Dock upside down. Loosen the screw (1) and remove
the bottom cover (2).
2. Set the PC Card lock to the locked position.
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Chapter 2. Using the ThinkPad Dock or the ThinkPad Dock II