Lenovo ThinkPad T540p - Manual (Page 18)

1 Camera (on some models)
Use the camera to take pictures or hold a video conference. For more information, see “Using the camera”
on page 39.
2 Microphones
The microphones capture sound and voice when used with a program capable of handling audio.
3 Power button
Use the power button to turn on the computer.
To turn off the computer, use the Start menu shutdown option on the Microsoft ® Windows ® 7 operating
system. For the Windows 8 and Windows 8.1 operating systems, move the cursor to the top-right or
bottom-right corner of the screen to bring up the charms. Then click Settings ➙ Power ➙ Shut down.
If your computer stops responding and you cannot turn it off, press and hold the power button for four
seconds or more. If the computer still is not responding, remove the ac power adapter and the battery
to reset the computer.
You also can program the power button so that by pressing the power button you can turn off the computer
or put the computer into sleep or hibernation mode. To achieve this, you need to change your power plan
settings. To access power plan settings, do the following:
• For Windows 7: Open the Power Manager program and then click Power Plan or Advanced ➙ Power
Plan. For instructions on how to start the Power Manager program, see “Accessing Lenovo programs on
the Windows 7 operating system” on page 14.
• For Windows 8 and Windows 8.1: Click the battery status icon in the Windows notification area and click
More power options. Then click Choose what the power buttons do.
4 Numeric keypad
Use the numeric keypad to quickly input numbers.
5 Fingerprint reader (on some models)
Fingerprint authentication technology provides a simple and secure user access by associating your
fingerprint with passwords. For more information, see “Using the fingerprint reader” on page 53.
6 Color sensor (on some models)
The color sensor enables you to measure and adjust the color accuracy of your displays. For more
information, see “Using the color sensor” on page 38.
ThinkPad pointing device
7 TrackPoint pointing stick
9 ThinkPad trackpad
The keyboard contains the Lenovo unique ThinkPad pointing device. Pointing, selecting, and dragging are all
part of a single process that you can perform without moving your fingers from a typing position. For more
information, see “Using the ThinkPad pointing device” on page 23.
8 NFC logo (on some models)
If there is a Near Field Communication (NFC) logo on the trackpad of your computer, it indicates that your
computer supports the NFC feature. For more information, see “Using the NFC connection” on page 33.
2 User Guide