Sony PCG-FXA32 - Manual (Page 41)

Connecting a Port Replicator
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To attach your notebook to the port replicator
To supply power to your notebook while it is connected to the port replicator,
connect the AC adapter directly to the port replicator.
1 Turn off the notebook and disconnect all peripheral devices.
2 On the bottom of the notebook, slide the port replicator cover open.
3 If necessary, close the tilt stands before attaching the notebook to the port
replicator.
When attaching your notebook to the port replicator, do not attempt to insert
or remove the battery pack. Lifting and turning the notebook with an attached
port replicator could cause a temporary loss of power, and may result in data
loss.
Port replicator connector