Lenovo IdeaPad U455 Lenovo IdeaPad U455 User Guide V1.0 - Page 16

OneKey Rescue, system button

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Chapter 1. Getting to know your computer Attention: • Do NOT open the display panel beyond 130 degrees. When closing the display panel, be careful NOT to leave pens or any other objects in between the display panel and the keyboard. Otherwise, the display panel may be damaged.  Integrated Use the camera for video communication. camera  Wireless module The built-in antennas ensure optimal reception of wireless antennas communication radio.  Computer display The LCD display with LED backlight provides brilliant visual output.  OneKey Rescue system button Press this button to open OneKey Rescue system (If OneKey Rescue system has been preinstalled) when the computer is powered off. Note: For details, see "Chapter 4. OneKey Rescue system" on page 39.  Power button Press this button to turn on the computer.  Built-in microphone The built-in microphone (with noise reduction) can be used for video conferencing, voice narration, or simple audio recordings.  Ambient light sensor The ambient light sensor detects the environmental illuminance and automatically adjusts the brightness of the LCD backlight. Note: Ambient light sensor is designed to conserve energy. If you want to set the brightness of the LCD backlight manually, you can disable this feature in Lenovo Energy Management. To disable ambient light sensor, launch Lenovo Energy Management. On the main panel, click and then click Smart Control. Clear the checkbox before ALS Control. 2

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2
Chapter 1. Getting to know your computer
Attention:
•
Do NOT open the display panel beyond 130 degrees. When closing the display
panel, be careful NOT to leave pens or any other objects in between the display
panel and the keyboard. Otherwise, the display panel may be damaged.
Integrated
camera
Use the camera for video communication.
Wireless module
antennas
The built-in antennas ensure optimal reception of wireless
communication radio.
Computer
display
The LCD display with LED backlight provides brilliant
visual output.
OneKey Rescue
system button
Press this button to open OneKey Rescue system (If
OneKey Rescue system has been preinstalled) when the
computer is powered off.
Note:
For details, see “Chapter 4. OneKey Rescue system” on page 39.
Power button
Press this button to turn on the computer.
Built-in
microphone
The built-in microphone (with noise reduction) can be used
for video conferencing, voice narration, or simple audio
recordings.
Ambient light
sensor
The ambient light sensor detects the environmental
illuminance and automatically adjusts the brightness of the
LCD backlight.
Note:
Ambient light sensor is designed to conserve energy. If you want to set the
brightness of the LCD backlight manually, you can disable this feature in
Lenovo Energy Management. To disable ambient light sensor, launch Lenovo
Energy Management. On the main panel, click
and then click
Smart
Control
. Clear the checkbox before
ALS Control
.
²