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Keyboard: Dell™Latitude™L400User'sGuide
Embedded Numeric Keypad
As you work, you may want to use the embedded numeric keypad (see Figure 1) to enter numbers in spreadsheet or financial programs. The
embedded numeric keypad shares some of the keys on your computer's keyboard. On these keys, the number and symbol characters of the
numeric keypad appear in blue to the right of the main keypad characters. To activate the embedded numeric keypad, press <Fn><Pad Lock>
(the Pad Lock indicator lights up while the embedded numeric keypad is active).
Figure 1. Embedded Numeric Keypad
Some key combinations can be used whether or not the keypad is activated.
Use the numeric keypad combinations in Table 1 to enable and disable several numeric keypad functions.
Table 1. Embedded Numeric Keypad Key Combinations
Display Key Combinations
Use the key combinations in Table 2 to adjust the computer's display.
Table 2. Display Key Combinations
Power Conservation Key Combinations
Embedded Numeric Keypad
Speaker Key Combinations
Display Key Combinations
System Function Key Combinations
Power Conservation Key Combinations
CD-ROM and DVD-ROM Drive Key Combinations
When Keypad Is On
Function
<Fn><F9>
Toggles the embedded numeric keypad off
When Keypad Is Off
Function
<Fn><F9>
Toggles the embedded numeric keypad on
Key Combinations
Function
<Fn> + down arrow
Incrementally decreases brightness
<Fn> + up arrow
Incrementally increases brightness
<Fn><F7>
Toggles the computer’s display between expanded
video mode and regular video mode
<Fn><F8>
Switches the video image to the next display in the
following sequence: the display, an external monitor, or
both displays simultaneously
<Fn><F1>
Turns off the display
NOTES: Contrast cannot be changed on an active-matrix (thin film transistor [TFT]) display, such as the display in your computer.
The <Fn><F1> and <Fn><F8> key combinations can be used from an external keyboard by enabling the External Hot-Key option on
the Advanced screen in the system setup program, and then pressing <Scroll Lock> instead of <Fn>.