Sony PCG-GRX570 Manual

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To connect an external mouse or keyboard 
1.
Shut down the notebook before you connect or disconnect the PS/2 external mouse or keyboard connector. 
2.
Connect the optional port replicator to the notebook. 
3.
Locate the Mouse/Keyboard (PS/2) port on the port replicator identified by the 
symbols. 
4.
Plug the mouse or keyboard connector into this port with the arrow facing upward. 
  Connecting External Mouse or Keyboard 
  Note: 
 
See the manual that came with your PS/2 mouse or keyboard for more information on its installation and use. 
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