Lenovo Thinkpad T440, Руководство пользователя

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Note: Some models do not have a wireless WAN card.
Bluetooth problems
Note: Check your connection anytime and make sure that no other Bluetooth-enabled device is searching for
the device to which you want to connect. Simultaneous searching is not allowed in the Bluetooth connection.
• Problem : Sound does not come from the Bluetooth headset/headphone but comes from the local
speaker even though the Bluetooth headset/headphone is connected using a Headset profile or AV profile.
Solution : Do the following:
1. Exit the application that uses the sound device (for example, Windows Media Player).
2. Open Control Panel and click Hardware and Sound ➙ Sound ➙ Playback .
3. If you are using a Headset profile, select Bluetooth Hands-free Audio and click the Set Default
button. If you are using an AV profile, select Stereo Audio and click the Set Default button.
4. Click OK to close the Sound window.
• Problem : PIM items sent from the Windows 7 operating systems cannot be received correctly into the
address book of any other Bluetooth-enabled device.
Solution : The Windows 7 operating system sends PIM items in XML format, but most Bluetooth-enabled
devices handle PIM items in vCard format. If another Bluetooth-enabled device can receive a file through
Bluetooth, a PIM item sent from the Windows 7 might be saved as a file with the extension .contact.
Problems with the keyboard and other pointing devices
The following are the most common problems with keyboards and other pointing devices.
TrackPoint pointing device problems
• Problem : The pointer drifts when the computer is turned on or after it resumes normal operation.
Solution : The pointer might drift when you are not using the TrackPoint pointing device during normal
operation. This is a normal characteristic of the TrackPoint pointing device and is not a defect. Pointer
drifting might occur for several seconds under the following conditions:
– When the computer is turned on
– When the computer resumes normal operation
– When the TrackPoint pointing device is kept pressed for a long time
– When the temperature changes
• Problem : The TrackPoint pointing device or trackpad does not work.
Solution : Ensure that the TrackPoint pointing device or trackpad is enabled in the Mouse Properties
window.
Keyboard problems
• Problem : All or some keys on the keyboard do not work.
Solution : If an external numeric keypad is connected:
1. Turn off the computer.
2. Remove the external numeric keypad.
3. Turn on the computer and try using the keyboard again.
If the keyboard problem is resolved, carefully reconnect the external numeric keypad and the external
keyboard. Make sure that you have seated the connectors correctly.
If the problem persists, make sure that the correct device driver is installed by doing the following:
1. Open Control Panel . Change the view of Control Panel from Category to Large icons or Small icons.
Chapter 10
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Troubleshooting computer problems
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