Sony PCG-R505GL - Manual (Page 109)

Connecting the Docking Station
109
Disconnecting the docking station
You can disconnect the docking station when the computer is on or off.
Disconnecting the docking station when the docking station indicator is on, the
computer is in a power saving mode (Standby or Hibernate), or the battery power
is low may result in data loss or a computer malfunction.
To disconnect the docking station when the computer is off
1 Disconnect all peripheral (attached) devices from the computer and the
docking station.
2 Remove all objects placed on top of the computer.
3 Pull the two release levers on the rear corners of the docking station to
release the computer from the docking station.
Securing the Docking Station
✍
When the battery is low, turn off the computer before you disconnect the docking
station.
Two rear corners click into place