Texas Instruments TravelMate 5000 Series User Reference Manual page 155

DOS Utilities
Adjusting the Left and Right Channels
The Mixer and Volume Control slide knobs initially appear
as solid bars and extend across both the left and right
channels. When the name of the slide control is
highlighted, you can adjust that control when you press
either the PgUP or the Right Arrow key.
Channel
Left
Right
Both Simultaneously
Adjusting the Master Volume Control
The Master Volume Control controls the volume you hear
through headphones or speakers. This includes all sound
sources set for either recording or not recording input. The
control is located on the right side of the Main Control
Panel.
Selecting Record Source
Position the cursor on the Record Source. Use the Left and
Right arrow keys to select between three sources
(microphone, CD-Audio, and Line-In).
8-4 Sound
Record Source - displays the source that is currintly
used as the input device
Keys
Home to lower the volume
PgUP to raise the volume
End to lower the volume
PgDn to raise the volume
Right arrow to lower the volume
Left arrow to raise the volume