HP 2730p - EliteBook - Core 2 Duo 1.86 GHz, Maintenance And Service Manual

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External component identification
Maintenance and Service Guide 2–3
Buttons and switches
Item Component Description
1 Internal display switch Turns off the display if the display is closed while the power is on.
2
Presentation button Starts the presentation feature.
3 Volume mute button Mutes and restores speaker sound.
4
Volume scroll zone Adjusts speaker volume:
■
To decrease volume, slide your finger across the volume scroll zone from
right to left. You can also press and hold the left end of the volume
scroll zone.
■
To increase volume, slide your finger across the volume scroll zone from
left to right. You can also press and hold the right end of the volume
scroll zone.