Lenovo ThinkPad T520 User Manual page 204

2. Press the button of the ThinkPad Mini Dock Series 3, the ThinkPad Mini Dock Plus Series 3, or the
ThinkPad Mini Dock Plus Series 3 (170 W) (1). Pull the sliding adjuster in the direction shown by the
arrow (2).
3. Put your computer on the platform of the ThinkPad Mini Dock Series 3, the ThinkPad Mini Dock Plus
Series 3, or the ThinkPad Mini Dock Plus Series 3 (170 W), making sure that the top-left corner of the
computer is aligned to the guide plate on the ThinkPad Mini Dock Series 3, the ThinkPad Mini Dock
Plus Series 3, or the ThinkPad Mini Dock Plus Series 3 (170 W).
4. Insert your computer into the ThinkPad Mini Dock Series 3, the ThinkPad Mini Dock Plus Series 3, or
the ThinkPad Mini Dock Plus Series 3 (170 W), along the surface, until you hear a click. The computer
is now attached to the ThinkPad Mini Dock Series 3, the ThinkPad Mini Dock Plus Series 3, or the
ThinkPad Mini Dock Plus Series 3 (170 W).
Note: If the docking indicator is not lighted after you attach the ThinkPad Mini Dock Series 3, the
ThinkPad Mini Dock Plus Series 3, or the ThinkPad Mini Dock Plus Series 3 (170 W), your computer
is not properly connected to the dock. Check the ac power adapter of the dock, or disconnect and
re-attach the ac power adapter. Then attach your computer to the dock.
Notes:
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User Guide