Sony PCV-W600G - Manual (Page 109)

Why doesn't my keyboard work properly?
 Check that the keyboard 1 is securely plugged into the keyboard port.
 Save and close all open software programs. Turn off your computer, wait approximately 10 seconds, and then
restart your computer.
 If you are using a wireless keyboard:
1. Confirm that the supplied AA batteries are properly installed. For proper installation of the AA batteries,
see the documentation supplied with your equipment.
2. Press the Connect button on the keyboard to reestablish the connection between the two devices.
1 T he V A I O "W" s eries c omputer has a built-in keyboard.
Page 109