Dell Latitude E7240 Owner's Manual Regulatory Model: P22S Regulatory Type: P22S001 April 2021 Rev.
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws.
Contents Chapter 1: Working on Your Computer...........................................................................................5 Before Working Inside Your Computer...........................................................................................................................5 Turning Off Your Computer.............................................................................................................................................. 6 After Working Inside Your Computer...........
Removing the Display Assembly.................................................................................................................................... 24 Installing the Display Assembly...................................................................................................................................... 25 Removing the System Fan..............................................................................................................................................
1 Working on Your Computer Topics: • • • Before Working Inside Your Computer Turning Off Your Computer After Working Inside Your Computer Before Working Inside Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following conditions exist: ● You have read the safety information that shipped with your computer.
NOTE: To avoid damaging the system board, you must remove the main battery before you service the computer. 7. Remove the main battery. 8. Turn the computer top-side up. 9. Open the display. 10. Press the power button to ground the system board. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the display.
CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into the computer. 3. Replace the battery. 4. Connect your computer and all attached devices to their electrical outlets. 5. Turn on your computer.
2 Docking Your Computer Follow the steps to dock your computer: a. Place the docking spacer until the docking spacer clicks on its place in the docking station. b. Place the computer on the docking spacer to dock your computer. NOTE: This docking spacer can be used to dock only the Latitude E7240 / Latitude E7440 computers. You cannot dock any other Dell computers using this docking station.
3 Removing and Installing Components This section provides detailed information on how to remove or install the components from your computer.
Recommended Tools The procedures in this document may require the following tools: ● Small flat-blade screwdriver ● Phillips screwdriver ● Small plastic scribe System Overview Figure 1. Inside View — Back 1. 2. 3. 4. 5. 6. 7. 8. system fan mSATA card battery bay SD card WLAN card WWAN card memory module heatsink Figure 2.
1. 3. 5. 7. coin-cell battery speaker wi-fi switch board display assembly 2. SIM card board 4. system board 6. system fan Removing the SD Card 1. Follow the procedures in Before Working Inside Your Computer. 2. Press in on the SD card to release it from the computer. 3. Slide the SD card out of the computer. Installing the SD Card 1. Slide the SD card into its slot until it clicks into place. 2. Follow the procedures in After Working Inside Your Computer. Removing the Battery 1.
3. Lift the battery from the computer. Installing the Battery 1. Slide the battery into its slot until it clicks into place. 2. Follow the procedures in After Working Inside Your Computer.
Removing the Base Cover 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove battery. 3. Remove the screws that secure the base cover to the computer. 4. Lift the base cover to remove it from the computer.
Installing the Base Cover 1. Place the base cover to align with the screw holes correctly on the computer. 2. Tighten the screws to secure the base cover to the computer. 3. Install battery. 4. Follow the procedures in After Working Inside Your Computer. Removing the mSATA SSD card 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove: a. battery b. base cover 3. To remove the mSATA SSD card: a. Remove the screw that secures the mSATA SSD card to the computer. b.
Installing the Keyboard Trim 1. Align the keyboard trim to its slot. 2. Press along the sides of the keyboard trim until it clicks in place. 3. Install battery. 4. Follow the procedures in After Working Inside Your Computer. Removing the Keyboard 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove: a. battery b. base cover c. keyboard trim 3. Lift the battery bay and remove the screw that secures the keyboard to the computer. 4.
Installing the Keyboard 1. Connect the keyboard cable and tighten the screw that secures the keyboard to the computer. 2. Slide the keyboard into its compartment and ensure that it clicks into place. 3. Flip the computer, place the keyboard, and tighten the screws that secure the keyboard to the computer. 4. Install: a. keyboard trim b. base cover c. battery 5. Follow the procedures in After Working Inside Your Computer. Removing the Palmrest 1. Follow the procedures in Before Working Inside Your Computer.
5. Remove the screws that secure the palmrest assembly to the front of the computer. Pry the edges and lift the palmrest assembly from the computer. Installing the Palmrest 1. Align the palm rest assembly to its original position in the computer and snap it into place. 2. Tighten the screws to secure the palmrest assembly to the front of the computer. 3. Route the touch cable and connect to the system board. 4. Tighten the screws that secure the palmrest assembly to the base of the computer. 5. Install: a.
Installing the Wi‐Fi Switch Board 1. Insert the wi-fi switch board in its slot. 2. Connect the wi-fi switch board to the system board. 3. Tighten the screw that secures the wi-fi switch board to the system board. 4. Install: a. b. c. d. e. f. palmrest keyboard keyboard trim base cover battery SD card 5. Follow the procedures in After Working Inside Your Computer. Removing the Memory Module 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove: a. battery b. base cover 3.
Installing the WLAN Card 1. Insert the WLAN card into its connector at a 45–degree angle into its slot. 2. Tighten the screw to secure the WLAN card to the computer. 3. Connect the antenna cables to their respective connectors marked on the WLAN card. 4. Install: a. base cover b. battery 5. Follow the procedures in After Working Inside Your Computer. Removing the WWAN Card 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove: a. battery b. SD card c. base cover 3.
c. battery 5. Follow the procedures in After Working Inside Your Computer. Removing the Display Bezel 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove the battery. 3. Pry the edges of the display bezel. Remove the display bezel from the display assembly. Installing the Display Bezel 1. Align the display bezel in place and snap it in place. 2. Align the hinge covers on display assembly and snap it in place. 3. Install the battery 4.
Installing the Display Panel 1. Connect the display cable (LVDS cable) to its connector on the display panel. 2. Place the display panel to its original position on the display assembly. 3. Tighten the screws to secure the display panel to the display assembly. 4. Install: a. display bezel b. battery 5. Follow the procedures in After Working Inside Your Computer. Removing the Coin-Cell Battery 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove: a. b. c. d. e. f.
Installing the Coin-Cell Battery 1. Place the coin-cell battery in its slot. 2. Route the cables and connect the coin-cell battery cable to the system board. 3. Connect the I/O cable to the system board. 4. Tighten the screw that secures the coin-cell battery to the system board. 5. Install: a. b. c. d. e. f. palmrest keyboard keyboard trim base cover battery SD card 6. Follow the procedures in After Working Inside Your Computer. Removing the Speakers 1.
d. base cover e. battery f. SD card 4. Follow the procedures in After Working Inside Your Computer. Removing the Display-Hinge Cover 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove battery. 3. Remove the screws that secure the display-hinge cover to the computer. Lift the display-hinge cover. Installing the Display-Hinge Cover 1. Place the display-hinge cover and tighten the screws to secure the display-hinge cover to the computer. 2. Install battery. 3.
Installing the Heatsink 1. Place the heatsink into its original position on the computer. 2. Tighten the screws to secure the heatsink to the computer. 3. Install: a. b. c. d. e. f. g. h. i. display assembly display-hinge cover palmrest keyboard keyboard trim mSATA base cover battery SD card 4. Follow the procedures in After Working Inside Your Computer. Removing the Display Assembly 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove: a. b. c. d. e.
4. Perform the following steps as shown in the illustration: Disconnect the antenna cables from the wireless solution. a. Disconnect the LVDS cable from the system board [1]. b. Unroute the cable from the slot [2]. c. Remove the screws and pull the antenna cables from the holes on the base chassis that secure the display assembly to the computer. 5. Remove the screws that secure the display assembly to the computer and lift the display assembly from the computer. Installing the Display Assembly 1.
b. c. d. e. keyboard base cover SD card battery 8. Follow the procedures in After Working Inside Your Computer. Removing the System Fan 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove: a. b. c. d. e. f. g. battery SD card base cover keyboard trim keyboard palmrest display-hinge cover 3. Remove the screws that secure the system fan to the computer and lift the system fan. Disconnect the system fan cable and lift the fan from the computer. Installing the System Fan 1.
b. c. d. e. f. g. h. i. j. k. l. m. battery base cover mSATA keyboard trim keyboard palmrest speaker display-hinge cover display assembly system fan heat sink I/O cable 3. Perform the following steps as shown in the illustration: a. b. c. d. e. Lift the I/O latch [1]. Remove the I/O cable from the system board [2]. Disconnect the I/O cable from system board[3]. Disconnect the speaker cable from the system board. Remove the screws that secure the system board to the computer. 4.
a. b. c. d. e. f. g. h. i. j. k. l. system fan heat sink display assembly display-hinge cover speaker palmrest keyboard keyboard trim mSATA base cover battery SD card 5. Follow the procedures in After Working Inside Your Computer. Removing the Power Connector 1. Follow the procedures in Before Working Inside Your Computer. 2. Remove: a. b. c. d. e. f. SD card battery base cover keyboard palmrest system fan 3.
4 Docking Port Information The docking port is used for connecting the laptop to a docking station (optional). 1.
5 System Setup Topics: • • • • • Boot Sequence Navigation Keys System Setup Options Updating the BIOS System and Setup Password Boot Sequence Boot Sequence allows you to bypass the System Setup‐defined boot device order and boot directly to a specific device (for example: optical drive or hard drive).
System Setup Options NOTE: Depending on your computer and its installed devices, the items listed in this section may or may not appear. Table 2. General Option Description System Information This section lists the primary hardware features of your computer. ● System Information: Displays BIOS Version, Service Tag, Asset Tag, Ownership Tag, Ownership Date, Manufacture Date, and the Express Service Code.
Table 3. System Configuration (continued) Option Description SATA Operation Allows you to configure the internal SATA hard-drive controller. The options are: ● Disabled ● AHCI ● RAID On (Default Setting) NOTE: SATA is configured to support RAID mode. Drives Allows you to configure the SATA drives on board. The options are: ● SATA-0 ● SATA-1 ● SATA-2 ● SATA-3 Default Setting: All drives are enabled.
Table 5. Security Option Description Admin Password This field lets you set, change, or delete the administrator (admin) password (sometimes called the setup password). The admin password enables several security features. ● Enter the old password ● Enter the new password ● Confirm the new password Default Setting: Not set System Password Allows you to set, change or delete the system password.
Table 5. Security (continued) Option Description ● Disable Admin Setup Lockout Allows you to prevent users from entering Setup when an Administrator password is set. Default Setting: Disabled Table 6. Secure Boot Secure Boot Enable Allows you to enable or disable Secure Boot feature ● Disabled ● Enabled(Default Setting) NOTE: For enable system needs to be UEFI boot mode and enable legacy option ROMs to be turned off.
Table 7. Performance (continued) Option Description Rapid Start Technology The Intel Rapid Start feature might improve the battery life by automatically putting the system into a low power state during sleep after a user specified time. The options are enabled by default: ● Intel Rapid Start Feature ● Transition to Rapid Start when using Timer The Rapid Start Timer value can be configure to put the system into Rapid State as per requirement. Table 8.
Table 8. Power Management (continued) Option Description ● Express Charge ● Primary AC Use ● Custom Charge — you can set the percentage to which the battery must charge. Intel Smart Connect Technology The option is disabled by default. If option enables will periodically sense nearby wireless connection while the system is asleep. It will synchronize emails or social media application that were open when system entered the sleep state. ● Smart Connection(Disabled) Table 9.
Table 10. Virtualization Support (continued) Option Description Trusted Execution This option specifies whether a Measured Virtual Machine Monitor (MVMM) can utilize the additional hardware capabilities provided by Intel Trusted Execution Technology. The TPM virtualization Technology, and Virtualization technology for direct I/O must be enabled to use this feature. Trusted Execution — disabled by default. Table 11.
4. If you are unable to locate or find the Service Tag, click the Product Category of your computer. 5. Choose the Product Type from the list. 6. Select your computer model and the Product Support page of your computer appears. 7. Click Get drivers and click View All Drivers. The Drivers and Downloads page opens. 8. On the Drivers and Downloads screen, under the Operating System drop-down list, select BIOS. 9. Identify the latest BIOS file and click Download File.
7. Press and a message prompts you to save the changes. 8. Press to save the changes. The computer reboots. Deleting or Changing an Existing System and/or Setup Password Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing System and/or Setup password. You cannot delete or change an existing System or Setup password, if the Password Status is Locked. To enter the System Setup, press immediately after a power-on or reboot. 1.
6 Diagnostics If you experience a problem with your computer, run the ePSA diagnostics before contacting Dell for technical assistance. The purpose of running diagnostics is to test your computer's hardware without requiring additional equipment or risking data loss. If you are unable to fix the problem yourself, service and support personnel can use the diagnostics results to help you solve the problem.
Table 14. Device Status Lights (continued) Turns on when wireless networking is enabled. The device status LEDs are usually located either on the top or left side of the keyboard. They display the storage, battery and wireless devices connectivity and activity. Apart from that they can be useful as a diagnostic tool when there's a possible failure to the system. The following table lists how to read the LED codes when possible errors occur. Table 15.
7 Specifications NOTE: Offerings may vary by region. The following specifications are only those required by law to ship with your computer. For more information about the configuration of your computer, go to Help and Support in your Windows operating system and select the option to view information about your computer. Table 16.
Table 20. Video Feature Specification Type integrated on system board Controller: UMA Intel HD Graphics 4400 Discrete AMD Radeon HD 8690M Graphics Data bus PCI-E Gen3 x8 External display support ● one HDMI NOTE: Support two DP/DVI ports through Docking station. Table 21. Camera Features Specification Camera Resolution 1280 x 720 pixels Video Resolution (maximum) 1280 x 720 pixels Diagonal viewing angle 74 ° Table 22.
Table 24. Display (continued) Feature Specification Latitude 7240 Latitude 7440 Horizontal +/-40° +/-40° Vertical +15°/-30° +15°/-30° 1.05 1.05 Pixel pitch Table 25. Keyboard Feature Specification Number of keys United States: 86 keys, United Kingdom: 87 keys, Brazil: 87 keys, and Japan: 90 keys Table 26. Touchpad Feature Specification Latitude 7240 Latitude 7440 X-axis 98.8 mm 100 mm Y-axis 60.8 mm 47 mm Active Area: Table 27.
Table 28. AC Adapter (continued) Feature Specification Input voltage 100 VAC to 240 VAC Input current (maximum) 1.50 A Input frequency 50 Hz to 60 Hz Output power 65 W Output current 3.34 A (continuous) Rated output voltage 19.5 VDC Weight 0.51 lb (0.23 kg) Dimensions 0.87 x 2.60 x 4.17 inches (22 x 66 x 106 mm) Temperature range: Operating 0 °C to 40 °C (32 °F to 104 °F) Non-Operating –40 °C to 70 °C (–40 °F to 158 °F) Table 29.
8 Contacting Dell NOTE: If you do not have an active internet connection, you can find the contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: Go to Dell.com/contactdell.
