Sony PCG-FX270 Primary Specifications page 36

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4 Plug the cable attached to the AC adapter into the DC IN jack on the port
replicator. Plug the power cord into the AC adapter and an AC outlet.
Connecting AC adapter to port replicator
✍
Use the AC adapter that comes with your notebook or an optional Sony adapter.
The power indicator turns green.
Power indicator
5 Turn on the notebook.
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AC adapter
Power
Port replicator connector
Power cord
Release lever