Dell Latitude 7480 Owner's Manual
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Dell Latitude 7480 Owner's Manual

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Dell Latitude 7480
Owner's Manual
Regulatory Model: P73G
Regulatory Type: P73G001
September 2021
Rev. A07

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Summary of Contents for Dell Latitude 7480

  • Page 1 Dell Latitude 7480 Owner's Manual Regulatory Model: P73G Regulatory Type: P73G001 September 2021 Rev. A07...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2017-2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

  • Page 3: Table Of Contents

    Contents Chapter 1: Working on your computer....................7 Turning off your — Windows............................7 Turning off your computer — Windows 8........................7 Turning off your computer — Windows 7........................7 Before working inside your computer..........................8 Safety instructions................................8 After working inside your computer..........................9 Chapter 2: Disassembly and reassembly..................10 Recommended tools................................10 Screw size list..................................
  • Page 4 Removing LED board..............................23 Installing LED board..............................24 Smart card module................................24 Removing smart card cage............................24 Installing smart card cage............................26 Touchpad.....................................26 Removing touchpad buttons board.........................26 Installing touchpad buttons board...........................28 Power connector port..............................28 Removing power connector port..........................28 Installing power connector port..........................29 Display Assembly................................
  • Page 5 Clearing CMOS settings..............................71 Clearing BIOS (System Setup) and System passwords...................72 Chapter 5: Troubleshooting......................73 Handling swollen Lithium-ion batteries........................73 Dell SupportAssist Pre-boot System Performance Check diagnostics..............74 Running the SupportAssist Pre-Boot System Performance Check..............74 Built-in self-test (BIST)..............................74 M-BIST................................... 74...
  • Page 6 LCD Built-in Self Test (BIST)........................... 75 System diagnostic lights..............................76 Real-Time Clock (RTC Reset)............................77 Recovering the operating system..........................77 Backup media and recovery options..........................77 WiFi power cycle................................78 Drain residual flea power (perform hard reset)......................78 Chapter 6: Contacting Dell......................79 Contents...

  • Page 7: Chapter 1: Working On Your Computer

    Working on your computer Topics: • Turning off your — Windows • Turning off your computer — Windows 8 • Turning off your computer — Windows 7 • Before working inside your computer • Safety instructions • After working inside your computer Turning off your —...

  • Page 8: Before Working Inside Your Computer

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

  • Page 9: After Working Inside Your Computer

    CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries designed for other Dell computers. 1. Connect any external devices, such as a port replicator or media base, and replace any cards, such as an ExpressCard.

  • Page 10: Chapter 2: Disassembly And Reassembly

    The procedures in this document require the following tools: ● Phillips #0 screwdriver ● Phillips #1 screwdriver ● Small plastic scribe Screw size list Table 1. Latitude 7480 - Screw size list M2.5 x Component M2.5x 6.0 M2.5x5.0 M2.0 x 5.0 M2.0x3.0...

  • Page 11: Subscriber Identification Module (Sim) Card

    Table 1. Latitude 7480 - Screw size list (continued) M2.5 x Component M2.5x 6.0 M2.5x5.0 M2.0 x 5.0 M2.0x3.0 M2.0 x 2.5 M2.0 x 2.0 Heat sink module System fan WWAN card WLAN card Power connector port ESD bracket EDP bracket...

  • Page 12: Replacing Sim Card

    Replacing SIM card 1. Insert a paperclip or a SIM card removal tool into the pinhole on the SIM card tray. 2. Use a scribe to pull the SIM card tray 3. Place on the SIM card on the tray. 4.

  • Page 13: Base Cover

    Base cover Removing base cover 1. Follow the procedure in Before working inside your computer. 2. To release the base cover: a. Loosen the M2.5 x 6 captive screws (8) that secure the base cover to the computer [1]. NOTE: Exercise caution when loosening the screws.

  • Page 14: Installing Base Cover

    Installing base cover 1. Align the base cover tabs to the slots on the edges of the computer. 2. Press the edges of the cover until it clicks into place. 3. Tighten the M2.5 x 6.0 captive screws to secure the base cover to the computer. NOTE: Exercise caution when tightening the screws.

  • Page 15: Removing Battery

    ● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell.

  • Page 16: Pcie Solid State Drive (Ssd)

    3. Tighten the M2.0 x 5.0 screws to secure the battery to the computer. NOTE: A small battery (3-cell) has a single screw, a larger battery (4-cell) has two screws. 4. Install the base cover 5. Follow the procedure in After working inside your computer.

  • Page 17: Speaker

    NOTE: When installing the SSD bracket, ensure that the tab on the bracket is held securely with the tab on the palm rest. NOTE: Ensure to install the bracket is the system is shipped with bracket. 3. Tighten the M2 x 3 screws to secure it the SSD bracket. 4.

  • Page 18: Installing Speaker Module

    a. Remove the M2.0x3.0 screws (4) that secure the speaker module to the computer [1]. b. Lift the speaker module from the computer . NOTE: Ensure to un-route the speaker cable from the routing clips. Installing speaker module 1. Place the speaker module into the slots on the computer. 2.

  • Page 19: Installing Coin Cell Battery

    Installing coin cell battery 1. Affix the coin cell battery on the slot inside the computer. 2. Route the coin cell battery cable through the routing channel before connecting the cable. 3. Connect the coin cell battery cable to the connector on the system board. 4.

  • Page 20: Installing Wwan Card

    Installing WWAN card 1. Insert the WWAN card into the connector on the system board. 2. Connect the WWAN cables to the connectors on the WWAN card. 3. Place the metal bracket and tighten the M2.0 x 3.0 screw to secure it to the computer. 4.

  • Page 21: Installing Wlan Card

    NOTE: Ensure NOT to pull the WLAN card more than 35°, to avoid damage to pin. Installing WLAN card 1. Insert the WLAN card into the connector on the system board. 2. Connect the WLAN cables to the connectors on the WLAN card. 3.

  • Page 22: Installing Memory Module

    Installing memory module 1. Insert the memory module into the connector until snaps in. 2. Connect the battery cable to the connector on the system board. 3. Install the base cover. 4. Follow the procedures in After working inside your computer.

  • Page 23: Installing Heat Sink Assembly

    NOTE: Remove the screws in the order of the callout numbers [1, 2, 3, 4] as indicated on the heat sink. c. Lift the heat sink assembly from the system board [3]. Installing heat sink assembly Heat sink assembly consists of heat sink and the system fan. 1.

  • Page 24: Installing Led Board

    CAUTION: Avoid pulling the cable as it would result in breaking the cable connector. Instead, use a scribe to push the edges of the cable connector to release the LED cable. b. Remove the M2.0 x 3.0 screw that secures the LED board to the computer [2]. c.
  • Page 25 a. Disconnect the smart card cable [1]. NOTE: Ensure to gently push the connector, to avoid damage to the smart card head. b. Lift the smart card cable that is affixed to the touchpad module [2]. NOTE: Ensure to pull gently to release it with adhesive tape. 6.

  • Page 26: Installing Smart Card Cage

    Installing smart card cage 1. Slide the smart card cage into the slot to align with the tabs on the computer. 2. Tighten the M2 x 3 screws to secure the smart card cage to the computer. 3. Affix the smart card cable and connect it to the connector on the computer . 4.
  • Page 27 NOTE: Un-route the speaker cable from the routing clips from the touchpad buttons. 6. To remove the touchpad buttons board: a. Disconnect the touchpad buttons board cable from the touchpad board [1]. NOTE: The touchpad buttons board cable is below the smart card cable. Ensure to lift the latch, to release the touchpad button board cable.

  • Page 28: Installing Touchpad Buttons Board

    Installing touchpad buttons board 1. Insert the touchpad buttons board into the slot to align the tabs with the grooves on the computer. 2. Tighten the M2.0 x 3.0 screws to secure the touchpad buttons board to the computer. 3. Connect the touchpad buttons board cable to the connector on the touchpad board. 4.

  • Page 29: Installing Power Connector Port

    NOTE: Use a plastic scribe to release the cable from the connector. Do not pull the cable as it may result in breakage. b. Remove the M2.0x3.0 screw (1) to release the metal bracket on the power connector port [2]. c.
  • Page 30 5. Remove the WWAN card. NOTE: To identify the number of screws, see screw list 6. To remove the display assembly: a. Un route the WLAN and WWAN cables from the routing channels [1]. b. Disconnect the IR camera cable from the system board [2]. c.

  • Page 31: Installing Display Assembly

    Installing display assembly 1. Place the base of the computer on a plane surface of a table and position it closer to the edge of the table. 2. Install the display assembly to align it with the display hinge holders on the system. 3.
  • Page 32 5. Remove the WWAN card. 6. Remove the display assembly. 7. To remove the touch display panel: a. Use a plastic scribe to loosen the edges of the display panel. b. Flip the display screen over from the top. c. Peel the adhesive tape [1], Mylar shield [2]. d.

  • Page 33: Installing Touch Display Panel

    8. Remove the display bezel from the display assembly. Installing touch display panel NOTE: The touch display panel installation procedure is applicable only for systems with touch display configuration. 1. Place the display panel on the display assembly. 2. Reconnect the IR cable and eDP cable. 3.

  • Page 34: Installing Display Bezel (Nontouch)

    1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Disconnect the battery cable from the connector on the system board. 4. Remove the WLAN card. 5. Remove the WWAN card. 6. Remove the display assembly.
  • Page 35 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Disconnect the battery cable from the connector on the system board. 4. Remove the WLAN card. 5. Remove the WWAN card. 6. Remove the display assembly.
  • Page 36 d. Peel off the display connector adhesive strip from the display panel [1]. e. Peel off the mylar tape securing the display cable on the back of the display panel [2]. f. Lift the metal tab and disconnect the display cable from the back of the display panel [3,4]. g.

  • Page 37: Installing The Display Panel (Nontouch)

    Installing the display panel (nontouch) NOTE: The display panel installation procedure is applicable only for nontouch display configuration. 1. Connect the display cable on the back of the display panel. 2. Affix the mylar tape securing the display cable on the back of the display panel. 3.

  • Page 38: Installing Camera

    Installing camera The installation procedure is applicable only for systems shipping with a nontouch display configuration. 1. Connect the camera cable. 2. Insert the camera microphone module into the slot on the display assembly. 3. Affix the tape to secure the camera module. 4.

  • Page 39: Display Hinge Caps

    Display Hinge Caps Removing the display hinge cap 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Disconnect the battery cable from the connector on the system board. 4. Remove the WLAN card. 5.

  • Page 40: System Board

    1. Push the release latch located on the SIM card slot inwards. 2. Slide the dummy SIM card tray out of the system. System board Removing system board 1. Follow the procedure in Before working inside your computer. If your computer is shipped with a WWAN card, then the removal of a blank SIM card tray is a requirement. 2.
  • Page 41 12. To disconnect the eDP cable: a. Un route the WLAN and WWAN cables from the routing channels [1]. b. Disconnect the IR cable from the system board [2]. c. Remove the M2.0 x 3.0 screw that secures the eDP cable [3]. d.
  • Page 42 13. To disconnect the cables: NOTE: To disconnect the speaker, LED board, coin cell battery and the power connector port cables, use a plastic scribe to release the cables from the connectors. Do not pull the cable as it may result in breakage. a.
  • Page 43 14. To remove the system board: a. Remove the USB type-C bracket. Image does not display the USB type-C bracket removal. b. Remove the M2.0 x 5.0 screws that secure the system board [1]. c. Lift the system board away from the computer. Disassembly and reassembly...
  • Page 44 15. Remove the M2.0x5.0 screws that secure the USB Type-C bracket. 16. Flip the system board, peel off the tapes securing the bracket and remove the USB Type-C port from the system board. Disassembly and reassembly...

  • Page 45: Installing System Board

    Installing system board 1. Place the USB Type-C port along with the bracket in the slot on the system board. 2. Affix the tape to secure the Type-C bracket. 3. Flip the system board and tighten the M2 x 3 screws to secure the USB type-C port to the system board. 4.
  • Page 46 5. Remove the PCIe SSD. 6. Remove the WLAN card. 7. Remove the WWAN card. 8. Remove the heat sink assembly. 9. Remove the system board. 10. Disconnect the cables from the palmrest end: a. keyboard cable [1] b. keyboard backlight cable [2] c.

  • Page 47: Removing Keyboard From Keyboard Tray

    Removing keyboard from keyboard tray 1. Follow the procedure in Before working inside your computer. 2. Remove the keyboard assembly 3. Remove the five M2.0 x 2.0 screws that secure the keyboard to the keyboard assembly. 4. Lift the keyboard away from the keyboard tray. Installing keyboard to keyboard tray 1.

  • Page 48: Installing Keyboard Assembly

    2. Tighten the five M2.0 x 2.0 screws to secure the keyboard to the keyboard tray. 3. Install the keyboard assembly. Installing keyboard assembly NOTE: The keyboard and the keyboard tray together are called the keyboard assembly. NOTE: The keyboard has multiple snap points on the lattice side which must be pushed down firmly at the snap points in order to secure and fit it to the replacement keyboard.
  • Page 49 heat sink assembly coin cell battery speaker display assembly system board keyboard The component that you are left with is the palm rest. 3. Replace the palm rest. 4. Install the: keyboard system board display assembly speaker coin cell battery heatsink power connector port WLAN card...

  • Page 50: Chapter 3: System Specifications

    Display specifications • Physical specifications • Environmental specifications Supported operating systems The topic lists the operating systems supported for Latitude 7480 system. Table 2. Supported operating systems Supported operating systems Description Windows 10 ● Microsoft Windows 10 Pro 64-bit ● Microsoft Windows 10 Home 64-bit Other ●...

  • Page 51: System Specifications

    System specifications Feature Specification Chipset DRAM bus width 64-bit Flash EPROM SPI 128 Mbits PCIe bus 100 MHz External Bus DMI 3.0—8GT/s Frequency Memory specifications Feature Specification Memory Two SoDIMM slots connector Memory capacity 4 GB, 8 GB, 16 GB, and 32 GB Memory type DDR4 SDRAM—2133MHz Minimum...

  • Page 52: Audio Specifications

    Table 4. Video specifications (continued) Feature Specifications Type Integrated on system board Intel 7th generation i3 / i5/ i7 series NOTE: Supports one VGA, DisplayPort, HDMI through the docking station . Audio specifications Feature Specification Types Four-channel high-definition audio Controller Realtek ALC3246 Stereo 24-bit—analog-to-digital and digital-to-analog...

  • Page 53: Ac Adapter Specifications

    Operating Docking options NOTE: Docking stations are sold separately. Options ● Dell Dock WD15 ● Dell Dock Stand DS1000 ● Dell Thunderbolt Dock TB16 Port and connector specifications Table 5. Temperature specifications Feature Specifications Audio Microphone-in, stereo headphones, and headset combo...

  • Page 54: Communication Specifications

    Table 5. Temperature specifications (continued) Feature Specifications Internal microphone: Digital microphone (dual microphone with camera) No volume control buttons Support hot-key keyboard button Network adapter One RJ-45 connector Two USB 3.0One DisplayPort over USB Type-C (optional Thunderbolt 3) Memory card reader Micro Subscriber Identity Module (SIM) card Docking port Express Card...

  • Page 55: Display Specifications

    Feature Specification X-axis Y-axis X/Y position X: 1048cpi; Y:984cpi resolution Multi-touch Configurable single finger and multi-finger gestures Display specifications Feature Specification Type - 14.0" Anti Glare HD WLED-Non Touch Luminance 200 nits Height 205.6 mm (8.09 inches) Width 320.9 mm (12.63 inches) Diagonal 355.6 mm (14.0 inches) Maximum...
  • Page 56 Feature Specification Maximum +/-80° viewing angles— horizontal Maximum +/-80° viewing angles— vertical Pixel pitch 0.161 x 0.161 mm Feature Specification Type - 14.0" FHD Anti Glare IPDS - Touch Luminance 270 nits Height 205.05 mm (8.07 inches) Width 327.8 mm (12.90 inches) Diagonal 355.6 mm (14.0 inches) Maximum...

  • Page 57: Physical Specifications

    Feature Specification Maximum +/-80° viewing angles— vertical Pixel pitch 0.1209 × 0.1209 mm Physical specifications Feature Specification Front height— 11.58 mm (0.45 inch) non-touch Back height— 18.41 mm (0.72 inch) non-touch Back height— 18.41 mm (0.72 inch) touch Width 331.0 mm (13.03nches) Depth 220.9 mm (8.69 inches) Weight—non-...

  • Page 58: Chapter 4: System Setup

    System Setup Topics: • BIOS overview • Entering BIOS setup program • Navigation keys • One time boot menu • System setup options • General screen options • System Configuration screen options • Video • Security screen options • Secure Boot screen options •...

  • Page 59: One Time Boot Menu

    Table 9. Navigation keys Keys Navigation Up arrow Moves to the previous field. Down arrow Moves to the next field. Enter Selects a value in the selected field (if applicable) or follow the link in the field. Spacebar Expands or collapses a drop-down list, if applicable. Moves to the next focus area.

  • Page 60: System Configuration Screen Options

    Option Description Battery Displays the battery status health and whether the AC adapter is installed. Information Boot Sequence Allows you to change the order in which the computer attempts to find an operating system. ● Diskette Drive ● Internal HDD ●...
  • Page 61 The options are: ● Enable USB Boot Support—enabled by default ● Enable the Thunderbolt ports—enabled by default ● Always Allow dell docks—enabled by default ● Enable External USB Port—enabled by default ● Enable Thunderbolt Boot Support ● Enable Thunderbolt (and PCIE behind TBT) Preboot ●...

  • Page 62: Video

    Option Description ● 30 sec ● 1 min ● 5 min ● 15 min ● Never Touchscreen It controls whether the screen is enabled or disabled. This option is enabled by default. Unobtrusive This option, when enabled, pressing Fn+F7 turns off all light and sound emissions in the system. To Mode resume normal operation, press Fn+F7 again.
  • Page 63 Option Description ● max-32—you can decrease the number Password Bypass Allows you to enable or disable the permission to bypass the System and the Internal HDD password, when they are set. The options are: ● Disabled ● Reboot bypass Default setting: Disabled Password Allows you to enable the disable permission to the System and Hard Drive passwords when the admin Change...

  • Page 64: Secure Boot Screen Options

    Secure Boot screen options Option Description Secure Boot This option enables or disables the Secure Boot feature. Enable ● Disabled ● Enabled Default setting: Enabled Expert Key Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable Management Custom Mode option is disabled by default.

  • Page 65: Power Management Screen Options

    Standby, the system setup removes power from all the USB ports to conserve battery power. ● Enable USB Wake Support ● Wake on Dell USB-C dock Default setting: The option is disabled. Wake on WLAN Allows you to enable or disable the feature that powers on the computer from the Off state when triggered by a LAN signal.

  • Page 66: Post Behavior Screen Options

    Battery Charge ● Adaptive—enabled by default Configuration ● Standard—Fully charges your battery at a standard rate. ● ExpressCharge—The battery charges over a shorter time using Dell’s fast charging technology This option is enabled by default. ● Primarily AC use ● Custom If Custom Charge is selected, you can also configure Custom Charge Start and Custom Charge Stop.

  • Page 67: Manageability

    Manageability Option Description USB provision Enable USB provision is not selected by default MEBX Hotkey Allows you to specify whether the MEBx Hotkey function should enable, during the system boot. —enabled by ● Disabled default ● Enabled Default setting: Disabled Virtualization support screen options Option Description...

  • Page 68: System Logs

    Description Auto OS Recovery The Auto OS Recovery Threshold setup option controls the automatic boot flow for Support Threshold Assist System Resolution Console and Dell OS Recovery tool. Choose one of the following options: ● OFF ● 1 ● 2—Default ●...

  • Page 69: Updating The Bios

    For more information on this subject, see Knowledge Article: https:// www.dell.com/support/article/sln153694 1. Go to www.dell.com/support. 2. Click Product support. In the Search support box, enter the Service Tag of your computer, and then click Search. NOTE: If you do not have the Service Tag, use the SupportAssist feature to automatically identify your computer.

  • Page 70: Updating The Bios From The F12 One-Time Boot Menu

    One-Time boot menu on the computer. Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12 One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the BIOS supports this BIOS update option.

  • Page 71: Assigning A System Setup Password

    NOTE: System and setup password feature is disabled. Assigning a system setup password You can assign a new System or Admin Password only when the status is in Not Set. To enter the system setup, press F12 immediately after a power-on or reboot. 1.

  • Page 72: Clearing Bios (System Setup) And System Passwords

    Clearing BIOS (System Setup) and System passwords To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell. NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying Windows or your application.

  • Page 73: Chapter 5: Troubleshooting

    ● Using a non-Dell or incompatible battery may increase the risk of fire or explosion. Replace the battery only with a compatible battery purchased from Dell that is designed to work with your Dell computer. Do not use a battery from other computers with your computer.

  • Page 74: Dell Supportassist Pre-Boot System Performance Check Diagnostics

    Dell SupportAssist Pre-boot System Performance Check diagnostics SupportAssist diagnostics (also known as system diagnostics) performs a complete check of your hardware. The Dell SupportAssist Pre-boot System Performance Check diagnostics is embedded with the BIOS and is launched by the BIOS internally.

  • Page 75: Lcd Power Rail Test (L-Bist)

    LCD Built-in Self Test (BIST) Dell laptops have a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with the LCD (screen) of the Dell laptop or with the video card (GPU) and PC settings.

  • Page 76: System Diagnostic Lights

    System diagnostic lights Battery-status light Indicates the power and battery-charge status. Solid white — Power adapter is connected and the battery has more than 5 percent charge. Amber — Computer is running on battery and the battery has less than 5 percent charge. ●...

  • Page 77: Real-Time Clock (Rtc Reset)

    It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state. You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary operating system due to software or hardware failures.

  • Page 78: Wifi Power Cycle

    5. Press and hold the power button for 20 seconds to drain the flea power. 6. Install the battery. 7. Install the base cover. 8. Connect the power adapter to your computer. 9. Turn on your computer. NOTE: For more information about performing a hard reset, see the knowledge base article 000130881 www.dell.com/support. Troubleshooting...

  • Page 79: Chapter 6: Contacting Dell

    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: 1. Go to Dell.com/support.

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