Lenovo ThinkPad A21e Hardware Maintenance Manual for ThinkPad A22m (wireless m - Page 50

Fn key combinations, The Fn key works independently from the operating

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Fn key combinations Product overview The following table shows the function of each combination of Fn with a function key. The Fn key works independently from the operating system. Key Description combination Fn+F1 Reserved. Fn+F2 Reserved. Fn+F3 Turn off the LCD display, leaving the screen blank. To turn the LCD display on again, press any key or the TrackPoint stick. Fn+F4 Turn standby mode on. To return to normal operation, press the Fn key independently, without pressing a function key. Fn+F5 Reserved. Fn+F6 Reserved. Fn+F7 Switch between the LCD and an external monitor (CRT). If an external monitor is attached, computer output is displayed in the following three patterns by turns: v CRT display v LCD + CRT display v LCD Fn+F8 Turn screen expansion on or off. (There is no symbol on the key.) Fn+F9 Reserved. Fn+F10 Reserved. Fn+F11 Reserved. Fn+F12 Turn hibernation mode on. To return to normal operation, press the power button for less than four seconds. Fn+PgUp Turn the ThinkLight on or off. Fn+Home The LCD becomes brighter. Fn+End The LCD becomes less bright. 46 ThinkPad A22m wireless models

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Fn key combinations
The following table shows the function of each combination
of Fn with a function key.
The Fn key works independently from the operating
system.
Key
combination
Description
Fn+F1
Reserved.
Fn+F2
Reserved.
Fn+F3
Turn off the LCD display, leaving the screen
blank. To turn the LCD display on again, press
any key or the TrackPoint stick.
Fn+F4
Turn standby mode on. To return to normal
operation, press the Fn key independently,
without pressing a function key.
Fn+F5
Reserved.
Fn+F6
Reserved.
Fn+F7
Switch between the LCD and an external monitor
(CRT). If an external monitor is attached,
computer output is displayed in the following
three patterns by turns:
v
CRT display
v
LCD + CRT display
v
LCD
Fn+F8
Turn screen expansion on or off. (There is no
symbol on the key.)
Fn+F9
Reserved.
Fn+F10
Reserved.
Fn+F11
Reserved.
Fn+F12
Turn hibernation mode on. To return to normal
operation, press the power button for less than
four seconds.
Fn+PgUp
Turn the ThinkLight on or off.
Fn+Home
The LCD becomes brighter.
Fn+End
The LCD becomes less bright.
Product overview
46
ThinkPad A22m wireless models