Panasonic Toughbook CF-52AJC15AM Reference Manual page 4

Key Combinations
Key
Fn + F4
Speaker on/off
NOTE
Beeps do not sound if you turn off the speaker sound.
Fn + F5
Volume
(Fn + F5= down / Fn + F6= up)
Fn + F6
NOTE
When fine-tuning the sound volume, press and hold Fn, and press F5 or
F6 intermittently.
This does not work on beeps or speakers connected to the USB port.
Fn + F7
Activate sleep (
Fn + F9
Remaining battery charge
(When the battery pack is inserted in the computer)
Fn + F10
Activate hibernation (
Fn +
<Only for model with touchscreen>
Keyboard LED
Fn +
= down / Fn +
(Fn +
Function
page 10)
page 10)
= up)
4
Pop-up icon
OFF ON
(MUTE)
page 17