Stealth Mode; Using The Backlit Keyboard - Dell Latitude 7424 Rugged Extreme Service Manual

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1. Press LCD latch located on the bottom chassis.

2. Lift the LCD lid at an convenient viewing angle.

NOTE:

Laptops are designed to allow LCD lid movement to a maximum of 180°, however lid should not be opened more

than 140°, if the rear I/O ports are in use or when docked.

Stealth mode

Latitude rugged products come equipped with a stealth mode feature. Stealth mode allows you to turn off the display, all the

LED lights, internal speakers, the fan and all wireless radios with a single key combination.

NOTE:

This mode is aimed at using the computer in covert operations. When the stealth mode is enabled, the computer

remains functional but does not emit any light or sound.

Turning stealth mode on/off

1. Press the Fn+F7 key combination (Fn key not needed if Fn lock is enabled) to turn on stealth mode.

NOTE:

Stealth mode is a secondary function of the F7 key. The key can be used to perform other functions on the

computer when not used with the Fn key to enable stealth mode.

2. All the lights and sounds are turned off.

3. Press the Fn+F7 key combination again to turn off the stealth mode.

Disabling stealth mode in the system setup (BIOS)

1. Power off the computer.

2. Power on the computer and at the Dell logo, tap the F2 key repeatedly to bring up the System Setup menu.

3. Expand and open the System Configuration menu.

4. Select Stealth Mode Control.

NOTE:

Stealth mode is enabled by default.

5. To disable stealth mode uncheck the Enable Stealth Mode option.

6. Click Apply changes and click Exit.

The Latitude rugged series comes equipped with a backlit keyboard that can be customized. The following colors are enabled:

1. White

2. Red

3. Green

4. Blue

Alternatively, the system can be configured with two additional custom colors in the System Setup (BIOS).

Technology and components

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