Toshiba Portege R400 User Manual Page 30

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2-4 User’s Manual
The Grand Tour
Back side
The following figure shows the computer’s back side.
Figure 2-4 The back side of the computer
Volume control
switch
Use this dial to adjust the volume of the internal
monaural speaker and optional external stereo
headphones (if connected).
Move the Volume control switch to the right to
increase the volume and to the left to decrease
the volume.
Press the Volume control switch to Mute the
sound. Press the Volume control switch again to
turn Mute off. The mute icon will be displayed
when the Volume control switch is pressed. The
same function can be performed by pressing the
Fn + Esc keys. Refer to the Hot keys section in
Chapter 5 for details on the Fn + Esc keys.
Headphone jack A 3.5 mm mini headphone jack enables
connection of stereo headphones.
Microphone jack A 3.5 mm mini microphone jack enables
connection of a three-conductor mini jack for
monaural microphone input.
Universal Serial Bus Ports
LAN jack
DC IN 15V jack
Cooling vents
LAN active indicator (orange)
Link indicator (green)
Universal Serial Bus
(USB 2.0) ports
Two Universal Serial Bus ports, which comply to
the USB 2.0 standard, are provided on the back
side of the computer.
Keep foreign metal objects, such as screws, staples and paper clips, out of
the USB connectors. Foreign metal objects can create a short circuit,
which can cause damage and fire, possibly resulting in serious injury.
Please note that it is not possible to confirm the operation of all functions of
all USB devices that are available. In view of this it may be noted that some
functions associated with a specific device might not operate properly.
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