The below table is a list of combination short-cut key functions using the Latitude 3550 keyboard.
Esc | Fn + Esc Activates Function Key Lock |
F1 | Fn + F1 Mute Audio |
F2 | Fn + F2 Decrease Volume |
F3 | Fn + F3 Increase Volume |
F4 | Fn + F4 Go back to previous track in Windows Media Player |
F5 | Fn + F5 Play or Pause track in Windows Media Player |
F6 | Fn + F6 Skip forward to next track in Windows Media Player |
F8 | Fn + F8 Toggles between external displays and/or the internal LCD |
F9 | Fn + F9 Search (Windows 8 onwards) |
F10 | Fn + F10 Adjust Keyboard Backlight brightness and on/off |
F11 | Fn + F11 Decrease LCD Brightness |
F12 | Fn + F12 Increase LCD Brightness |
PrtScr | Fn + PrtScr Toggle Wireless on/off |
(This should not affect the Function Table above)