Sony VGN-SZ210P User Manual page 80

To disconnect your computer from the docking station
1 Press the UNDOCK button and wait until the IN USE indicator (2) turns off.
If the IN USE indicator is unlit, you do not have to press the UNDOCK button.
Pressing the UNDOCK button while the computer is in a power saving mode returns the computer to Normal mode first, and then initiates the
disconnection process.
n 80 N
Using Peripheral Devices