Toshiba Satellite C640 - Manual (Page 94)

User’s Manual 4-27
Operating Basics
This feedback occurs repeatedly and causes a very loud, high-pitched
noise. It is a common phenomenon that occurs in any sound system when
the microphone input is output to the speaker (throughput) and the speaker
volume is too loud or too close to the microphone. You can control
throughput by adjusting the volume of your speaker or through the Mute
function in the Master Volume panel. Refer to your Windows documentation
for details on using the Master Volume panel.
Wireless Communications
The computer’s wireless communication function supports some wireless
communication devices.
Wireless LAN
The Wireless LAN is compatible with other LAN systems based on Direct
Sequence Spread Spectrum/Orthogonal Frequency Division Multiplexing
radio technology that complies with IEEE 802.11 Wireless LAN standard
(Revision B, G or N).
Setting
1. Please make sure that the Wireless Communication function is on.
2. Click Start  Control Panel  Network and Internet  Network and
Sharing Center.
3. Click Set up a new connection or network.
4. Follow the wizard. You will need the name of the wireless network
together with security settings. Consult the documentation
accompanied with your router or ask your wireless network
administrator for the settings.
■ Do not use the Wireless LAN (Wi-Fi) functionality near a microwave
oven or in areas subject to radio interference or magnetic fields.
Interference from a microwave oven or other source can disrupt Wi-Fi
operation.
■ Turn all wireless functionalities off when near a person who may have
a cardiac pacemaker implant or other medical electric device. Radio
waves may affect pacemaker or medical device operation, possibly
resulting in serious injury. Follow the instruction of your medical device
when using any wireless functionality.
■ Always turn off wireless functionality if the computer is near automatic
control equipment or appliances such as automatic doors or fire
detectors. Radio waves can cause malfunction of such equipment,
possibly resulting in serious injury.
■ It may not be possible to make a network connection to a specified
network name using the ad hoc network function. If this occurs, the
new network(*) will have to be configured for all computers connected
to the same network in order to re-enable network connections.
* Please be sure to use new network name.