HP Compaq 620 Notebook-PC - Manual (Page 47)

Increasing speaker sound (fn+f9) (select models)
Press fn+f9 to increase speaker volume. Hold down the hotkey to increase speaker volume
incrementally.
Playing the previous track or section of an audio CD or a DVD (fn+f10) (select models)
While an audio CD or a DVD is playing, press fn+f10 to play the previous track of the CD or the previous
section of the DVD.
Playing, pausing, or resuming an audio CD or a DVD (fn+f11) (select models)
The fn+f11 hotkey functions only when an audio CD or a DVD is inserted.
● If the audio CD or the DVD is not playing, press fn+f11 to begin or resume the play.
● If the audio CD or the DVD is playing, press fn+f11 to pause the play.
Playing the next track or section of an audio CD or a DVD (fn+f12) (select models)
While an audio CD or a DVD is playing, press fn+f12 to play the next track of the CD or the next section
of the DVD.
Using the keyboard 35