Sony VGN-S150 Quick Start Manual page 22

VAIO® Computer Quick Start
Indicator Function
Scroll Lock Press this key to change how you scroll the display. Normal
scrolling resumes when the Scroll Lock indicator is off. The
Scroll Lock key functions differently depending on the
program you are using and does not work with all programs.
*
Bluetooth® Turns on when the wireless switch is set to ON and Bluetooth
technology is enabled.
Wireless Turns on when the wireless LAN function is running.
*
LAN
* On selected models only.
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