Sony PCG-GRX560 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 
  
 See the manual that came with your PS/2 mouse or keyboard for more information on its installation and use. 
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