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Dell LATITUDE D400: Keyboard: Dell™Latitude™CS/CS

Keyboard: Dell™Latitude™CS/CS: Dell LATITUDE D400

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Keyboard: Dell™Latitude™CS/CS

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Portable Computers User's Guide

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 <Num Lk> (the Num

Lock indicator lights up).

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

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

Processing Speed Key Combinations

NOTE: On an external keyboard, use <Scroll Lock> with the appropriate keys if the External Hot Key option is enabled in the System

Setup program.

When Keypad Is On

Function

<Num Lk>

Toggles the embedded numeric keypad off

<Fn><key>

Temporarily disables the embedded numeric keypad; enables the

lowercase characters/functions of the keyboard

<Fn><Shift><key>

Temporarily disables the embedded numeric keypad; enables the

uppercase characters/functions of the keyboard

When Keypad Is Off

Function

<Num Lk>

Toggles the embedded numeric keypad on

<Fn><Shift><number key>

Temporarily enables a number or symbol key in the embedded

numeric keypad

NOTE: On an external keyboard, use <Scroll Lock> with the appropriate keys if the External Hot Key option is enabled in the System

Setup program.

Key Combinations

Function

* This key combination may not be supported by future operating systems.

Power Conservation Key Combinations

Use the key combinations in Table 3 to activate or turn off the computer's power conservation features.

Table 3. Power Conservation Key Combinations

* This key combination may not be supported by future operating systems.

Processing Speed Key Combinations

Use the key combinations in Table 4 to change the computer's processing speed.

Table 4. Processing Speed Key Combinations

<Fn> + down arrow

Incrementally decreases brightness.

<Fn> + up arrow

Incrementally increases brightness.

<Fn> + right arrow

Has no effect on your computer.

Decreases contrast on passive-matrix displays; has no effect on active-matrix

displays.

<Fn> + left arrow

Has no effect on your computer.

Increases contrast on passive-matrix displays; has no effect on active-matrix

displays.

<Fn><F5> *

Toggles the computer's display between regular video mode and reverse video mode

(white on black). This key combination works only if the computer is in text mode; it has no

effect if the computer is running a graphical operating system or application program.

<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><d>*

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.

To use key combinations on an external keyboard, enable the External Hot Key option in the System Setup program and use <Scroll

Lock> instead of <Fn>.

NOTE: On an external keyboard, use <Scroll Lock> with the appropriate keys if the External Hot Key option is enabled in the System

Setup program.

Key Combinations

Function

<Fn><d>*

Turns off the display

<Fn><h>*

Turns off the hard-disk drive

<Fn><Esc>*

Activates suspend or standby mode

<Fn><a> or

<Fn><q> on French

keyboards

Activates suspend-to-disk mode

NOTE: On an external keyboard, use <Scroll Lock> with the appropriate keys if the External Hot Key option is enabled in the System

Setup program.

<Fn><\> *

Switches between the microprocessor's maximum speed and a slower

compatibility speed

* This key combination may not be supported by future operating systems.

Speaker Key Combinations

Use the key combinations in Table 5 to adjust the computer's speaker volume and to enable and disable the speakers.

Table 5. Speaker Key Combinations

System Function Key Combinations

Use the key combinations in Table 6 to access MS-DOS, open the System Setup program, and open the Battery Status screen of the System

Setup program.

Table 6. System Function Key Combinations

* This key combination may not be supported by future operating systems.

CD-ROM and DVD-ROM Drive Key Combinations

To eject the CD-ROM or DVD-ROM tray, press <Fn><F10>.

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<Ctrl><\>

In full MS-DOS®mode or in a full-screen DOS box, switches between the

microprocessor’s maximum speed and a slower compatibility speed

NOTE: On an external keyboard, use <Scroll Lock> with the appropriate keys if the External Hot Key option is enabled in the System

Setup program.

Key Combinations

Function

<Fn><Page Up>

Increases the volume of the integrated speaker and the

external speakers, if attached

<Fn><Page Dn>

Decreases the volume of the integrated speaker and the

external speakers, if attached

<Fn><End>

Enables and disables the integrated speaker and the

external speakers, if attached

NOTE: On an external keyboard, use <Scroll Lock> with the appropriate keys if the External Hot Key option is enabled in the System

Setup program.

Key Combinations

Function

<Ctrl><Alt><Del>

Restarts (reboots) the computer in MS-DOS mode. In the Microsoft®

Windows®95, Windows 98, and Windows NT®operating systems, click

the Start button and click Shut Down.

<Fn><F1>*

Opens the System Setup program.

<Fn><F3>*

Opens the Battery Status screen of the System Setup program.

NOTE: On an external keyboard, use <Scroll Lock> with the appropriate keys if the External Hot Key option is enabled in the System

Setup program.

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