Dell Latitude 7390 Owner's Manual
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Dell Latitude 7390 Owner's Manual

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Dell Latitude 7390
Owner's Manual
Regulatory Model: P28S
Regulatory Type: P28S002

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Summary of Contents for Dell Latitude 7390

  • Page 1 Dell Latitude 7390 Owner's Manual Regulatory Model: P28S Regulatory Type: P28S002...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2018 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: Working On Your Computer

    Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.
  • Page 4 • Transporting Sensitive Components – When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. Working on your computer...

  • Page 5: Before Working Inside Your Computer

    Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.

  • Page 6: 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. Connect any external devices, such as a port replicator or media base, and replace any cards, such as an ExpressCard.

  • Page 7: Removing And Installing Components

    The procedures in this document require the following tools: • Phillips #0 screwdriver • Phillips #1 screwdriver • Small plastic scribe Screw size list Table 1. Latitude 7390 - screw size list M2.5 x Component M2.5x 6.0 M2.0 x 5.0 M2.0x3.0 M2.5x4.0 M2.0 x 2.5 M2.0 x 2.0...
  • Page 8 M2.5 x Component M2.5x 6.0 M2.0 x 5.0 M2.0x3.0 M2.5x4.0 M2.0 x 2.5 M2.0 x 2.0 Keyboard support plate Keyboard System board Memory module bracket Subscriber Identification Module (SIM) card Removing SIM card or SIM card tray NOTE: SIM card or SIM card tray removal is only available on systems that are shipped with WWAN module. Hence, removing procedure is only applicable for systems that are shipped with WWAN module.

  • Page 9: Base Cover

    Base cover Removing base cover Follow the procedure in Before working inside your computer. To release the base cover: Loosen the M2.5 x 6.0 captive screws (8) that secure the base cover to the computer [1]. Remember: Exercise caution when loosening the screws. Angle the screw driver to match the head of the screw to avoid a possible stripped screw head.
  • Page 10 Installing base cover Align the base cover tabs to the slots on the edges of the computer. Press the edges of the cover until it clicks into place. Tighten the M2.5 x 6.0 captive screws to secure the base cover to the computer. Remember: Exercise caution when tightening the screws.
  • Page 11 Installing 3-cell battery Insert the battery into the slot on the computer. Route the battery cable through the routing clip and connect the battery cable to the connector on the system board. NOTE: Route the battery cable, if the cable at the base of the battery is un-routed. Replace the M2.0 x 5.0 screw to secure the battery to the computer.
  • Page 12 Installing 4-cell battery Insert the battery into the slot on the computer. Route the battery cable through the routing clip and connect the battery cable to the connector on the system board. NOTE: Route the battery cable, if the cable at the base of the battery is un routed. Replace the two M2.0 x 5.0 screws to secure the battery to the computer.
  • Page 13 Removing PCIe SSD without bracket Follow the procedure in Before working inside your computer. Remove the : base cover battery To remove the PCIe SSD: Loosen the M2.0x3.0 captive screw that secure the SSD bracket [1]. b Slightly lift the SSD and pull out from its connector [2]. NOTE: Ensure to lift the PCle SSD card by an angle NOT more than 30°.
  • Page 14 Installing PCIe SSD Insert the PCIe SSD card into the connector. Install the SSD bracket over the PCIe SSD card. 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.
  • Page 15 Installing SATA SSD Insert the SATA SSD card into the connector. Tighten the screw to secure the SATA SSD to the system board. Install the base cover. Follow the procedure in After working inside your computer. Speaker Removing speaker module Follow the procedure in Before working inside your computer.
  • Page 16 b Un-route the speaker cable from the routing clips [2,3]. Remove the tape that secures the speaker cables to the touchpad board [4]. To remove the speaker module: Remove the M2.0x3.0 screws (4) that secure the speaker module to the computer [1]. b Lift the speaker module from the computer [2].
  • Page 17 Installing speaker module Place the speaker module into the slots on the computer. Route the speaker cable through the retention clips on the computer. Connect the speaker cable to the connector on the system board. Install the: battery base cover Follow the procedure in After working inside your computer.

  • Page 18: Wwan Card

    Installing coin cell battery Affix the coin cell battery on the slot inside the computer. Route the coin cell battery cable through the routing channel before connecting the cable. Connect the coin cell battery cable to the connector on the system board. Install the : battery base cover...
  • Page 19 b Lift the metal bracket that secures the WWAN card [2]. Disconnect the WWAN cables from the connectors on the WWAN card with a plastic scribe.[3]. NOTE: Ensure to press the WWAN card, and then release the cables from the connectors. d Slide and lift the WWAN card from the connector on the system board [4].Lift the WWAN card from the computer .

  • Page 20: Wlan Card

    WLAN card Removing WLAN card Follow the procedure in Before working inside your computer. Remove the : base cover battery To remove the WLAN card: Remove the M2.0 x 3.0 screw that secures the metal bracket to the WLAN card [1]. b Lift the metal bracket [2].

  • Page 21: Memory Modules

    Install the .: battery base cover Follow the procedure in After working inside your computer. Memory modules Removing memory module Follow the procedure in Before working inside your computer. Remove the : base cover battery To remove the memory module: Pull the clips securing the memory module until the module snaps-out [1].

  • Page 22: Installing Memory Module

    Installing memory module Insert the memory module into the connector until snaps in. Install the : battery base cover Follow the procedures in After working inside your computer. Heat sink Removing heat sink assembly Heat sink assembly comprises of heat sink and the system fan. Follow the procedure in Before working inside your computer.
  • Page 23 Installing heat sink assembly Heat sink assembly comprises of heat sink and the system fan. Align the heat sink assembly with screw holders on the system board and tighten the screws (4) to the system board. Tighten the M2.0 x 5.0 screws to secure the fan to the system board Connect the fan cable to the connector on the system board.

  • Page 24: Led Board

    b Remove the M2.0x3.0 screw (1) to release the metal bracket on the power connector port [2]. Lift the metal bracket from the computer [3]. d Remove the power connector port from the computer [4]. Installing power connector port Install the power connector port into the slot on the computer. Place the metal bracket on the power connector port.
  • Page 25 To remove the LED board: Disconnect the LED cable from the LED board [1]. CAUTION: Avoid pulling the cable as it would result in breaking the cable connector. Instead, use a scribe to release the LED cable from its connector. b Unroute the LED cable from the routing channel [2].
  • Page 26 Smart card module Removing smart card cage Follow the procedure in Before working inside your computer. Remove the: base cover battery PCIe SSD card To disconnect the smart card cable: 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].
  • Page 27 Installing smart card cage Slide the smart card cage into the slot to align with the tabs on the computer. Tighten the M2.0 x 3.0 screws to secure the smart card cage to the computer. Affix the smart card cable and connect it to the connector on the computer . Install the: PCIe SSD card battery...
  • Page 28 To disconnect the smart card cable: Disconnect the smart card cable [1]. b Lift the smart card cable that is affixed to the computer [2] to reveal the touchpad buttons board cable. Remove the adhesive tape that secures the speaker cable to the touchpad panel [3]. To remove the touchpad buttons board: Disconnect the touchpad buttons board cable from the touchpad board [1].

  • Page 29: Display Assembly

    Installing touchpad buttons board Insert the touchpad buttons board into the slot to align the tabs with the grooves on the computer. Tighten the screws to secure the touchpad buttons board to the computer. Connect the touchpad buttons board cable to the connector on the touchpad board. Affix the smart card cable and connect it to the connector on the computer Install the: speaker...
  • Page 30 WWAN card NOTE: To identify the number of screws, see screw list To remove the display assembly: Unroute the WLAN and WWAN cables from the routing channels [1]. b Remove the M2.0 x 5.0 screws that secures the eDP bracket [2]. Lift the eDP bracket from the eDP cable [3].
  • Page 31 Installing display assembly Place the base of the computer on a plane surface of a table and position it closer to the edge of the table. Install the display assembly to align it with the display hinge holders on the system. Holding the display assembly, tighten the M2.5 x 4.0 screws to secure the display hinges on the system display assembly with the system unit.
  • Page 32 Display hinge cap Removing display hinge Cap Follow the procedure in Before working inside your computer. Remove the: base cover battery WLAN card WWAN card display assembly NOTE: To identify the number of screws, see screw list Push the display hinge cap to the right. Remove the display hinge cap.

  • Page 33: System Board

    Install the: display assembly WLAN card WWAN card battery base cover Follow the procedure in After working inside your computer. System board Removing system board 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. Remove the: SIM card base cover...
  • Page 34 To disconnect the eDP cable: Un route the WLAN and WWAN cables from the routing channels [1]. b Remove the M2.0 x 3.0 screw (2) and lift the eDP cable bracket that secures to the system board [2,3]. Disconnect the clip that secures the cable to the system board [4]. d Remove the adhesive tape that secures the eDP cable [5].
  • Page 35 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 speaker cable [1] b LED board cable [2] coin cell battery cable [3]...
  • Page 36 To remove the system board: Remove the M2.0x5.0 screws (8) that secure the USB Type-C bracket [1]. NOTE: Image does not display the USB type-C bracket removal. b Flip the system board, peel off the tapes securing the bracket and remove the USB Type-C port from the system board. Lift the system board away from the computer [2].
  • Page 37 Installing system board Place the USB Type-C port along with the bracket in the slot on the system board. Affix the tape to secure the Type-C port bracket. Flip the system board and tighten the M2.0x5.0 screws to secure the USB type-C port. Align the system board with the screw holders on the computer.

  • Page 38: Keyboard Assembly

    base cover Follow the procedure in After working inside your computer. Keyboard assembly Removing keyboard assembly NOTE: The keyboard and the keyboard tray together are called the keyboard assembly. Follow the procedure in Before working inside your computer. Remove: base cover battery memory module PCIe SSD...
  • Page 39 NOTE: To identify the screws, see screw list Remove the M2.0 x 2.5 screws (19) that secure the keyboard [1]. b Lift the keyboard assembly from the chassis [2]. Remove the screws (5) that secures the keypad to the keyboard chassis and lift the keyboard [1,2]. Removing and installing components...
  • Page 40 NOTE: Remove the keyboard chassis when you encounter malfunction in the keyboard, after validating with a working laptop. Installing keyboard assembly NOTE: The keyboard and the keyboard tray together are called the keyboard assembly. Align the keyboard assembly with the screw holders on the computer. Tighten the M2.0 x 2.5 screws that secure the keyboard to the chassis.
  • Page 41 Keyboard Removing keyboard from keyboard tray Follow the procedure in Before working inside your computer. Remove the keyboard assembly Remove the M2.0 x 2.0 screws that secure the keyboard to the keyboard assembly [1]. Lift the keyboard away from the keyboard tray [2]. Installing keyboard to keyboard tray Align the keyboard with the screw holders on the keyboard tray.

  • Page 42: Palm Rest

    Palm rest Replacing palm rest Follow the procedure in Before working inside your computer. Remove the: base cover battery memory module PCIe SSD WLAN card WWAN card power connector port heat sink assembly coin cell battery speaker display assembly system board keyboard The component you are left with is the palm rest.
  • Page 43 speaker coin cell battery heatsink power connector port WLAN card WWAN card PCIe SSD memory battery base cover Follow the procedure in After working inside your computer. Removing and installing components...
  • Page 44 Technology and components This chapter details the technology and components available in the system. Topics: • USB features • HDMI 1.4 USB features Universal Serial Bus, or USB, was introduced in 1996. It dramatically simplified the connection between host computers and peripheral devices like mice, keyboards, external drivers, and printers.
  • Page 45 commonly known as USB 2.0 and 1.1 respectively, the slower modes still operate at 480Mbps and 12Mbps respectively and are kept to maintain backward compatibility. USB 3.0/USB 3.1 Gen 1 achieves the much higher performance by the technical changes below: •...
  • Page 46 Compatibility The good news is that USB 3.0/USB 3.1 Gen 1 has been carefully planned from the start to peacefully co-exist with USB 2.0. First of all, while USB 3.0/USB 3.1 Gen 1 specifies new physical connections and thus new cables to take advantage of the higher speed capability of the new protocol, the connector itself remains the same rectangular shape with the four USB 2.0 contacts in the exact same location as before.
  • Page 47 Key Features of Thunderbolt 3 over USB Type-C Thunderbolt, USB, DisplayPort and power on USB Type-C on a single cable (features vary between different products) USB Type-C connector and cables which are compact and reversible Supports Thunderbolt Networking (*varies between different products) Supports up to 4K displays Up to 40 Gbps NOTE:...

  • Page 48: Advantages Of Hdmi

    • Content Type - Real-time signaling of content types between display and source devices, enabling a TV to optimize picture settings based on content type • Additional Color Spaces - Adds support for additional color models used in digital photography and computer graphics •...
  • Page 49 System specifications System specifications Feature Specification Chipset Intel KabyLake U & R (integrated with processor) DRAM bus width 64-bit Flash EPROM SPI 128 Mbits PCIe bus 100 MHz External Bus DMI 3.0—8GT/s Frequency Processor specifications Feature Specification Types • 7th Generation Intel Core up to i5 processors •...

  • Page 50: Audio Specifications

    Feature Specification NOTE: Supports one VGA, DisplayPort, HDMI through the docking station . Audio specifications Feature Specification Types Four-channel high-definition audio Controller Realtek ALC3246 Stereo conversion 24-bit—analog-to-digital and digital-to-analog Internal interface High-definition audio External interface Microphone-in, stereo headphones, and headset combo connector Speakers Internal speaker 2 W (RMS) per channel...

  • Page 51: Ac Adapter Specifications

    Feature Specification Coin cell battery 3 V CR2032 lithium coin cell AC adapter specifications Feature Specification Type 65 W or 90 W 65W E5 for India NOTE: The system is shipped with 65 W adapter and also supports 90 W adapter for fast charging. Input voltage 100 V AC to 240 V AC Input current—...
  • Page 52 Feature Specification Network adapter One RJ-45 connector • One DisplayPort over USB Type-C (optional Thunderbolt 3) • Type-C USB 3.1 Gen 1 Display port (optional Thunderbolt) • Two USB 3.1 Gen1 ports - (one PowerShare capable) Memory card reader MicroSD 4.0 card reader and One 3042, One 2280 M.2 slots Micro Subscriber External tray tied to WWAN hinge up Identity Module...
  • Page 53 Imaging Rate Up to 30 frames per second Up to 30 frames per Up to 30 frames per second second Display Table 4. 13.3" (16:9) AG FHD WLED 300 nits eDP 1.3 WVA Feature Specification Type FHD Anti-Glare Luminance (typical) 300 nits Dimensions (Active Area) •...

  • Page 54: Dimensions And Weight

    Dimensions and Weight Table 6. Dimensions Dimensions Inches Millimeter Width 12.00 304.80 Depth 8.19 207.95 Height (front, full ) for NT FHD and Touch FHD 0.64 16.33 Height (rear, full) for all configurations 0.66 16.86 Table 7. Weight Starting weight Pounds Kilograms 2.59...

  • Page 55: System Setup

    Boot menu Press <F12> when the Dell™ logo appears to initiate a one-time boot menu with a list of the valid boot devices for the system. Diagnostics and BIOS Setup options are also included in this menu. The devices listed on the boot menu depend on the bootable devices in the system.

  • Page 56: System Setup Options

    Keys Navigation Spacebar Expands or collapses a drop‐down list, if applicable. Moves to the next focus area. NOTE: For the standard graphics browser only. Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a message that prompts you to save any unsaved changes and restarts the system.
  • Page 57 Option Description • Always • Never NOTE: These options have no relevance if the Admin password is not set BIOS settings. Date/Time Allows you to change the date and time. Video screen options Option Description LCD Brightness Allows you to set the display brightness depending up on the power source (On Battery and On AC). NOTE: The video setting will be visible only when a video card is installed into the system.
  • Page 58 Option Description Non-Admin Setup Allows you to determine whether changes to the setup options are allowed when an administrator password is set. Changes If disabled the setup options are locked by the admin password. UEFI Capsule This option controls whether the system allows BIOS updates via UEFI capsule update packages. Firmware Updates Enable UEFI Capsule Firmware Updates option is selected by default.
  • Page 59 Option Description Enable Master Password Lockout This option is not selected by default. SSM Security Allows you to enable or disable additional UEFI SMM Security Mitigation protections. The OS can use the feature Mitigation to help protect the secure environment created by virtualization based security. SSM Security Mitigation This option is disabled by default.
  • Page 60 Performance screen options Option Description Multi Core Support This field specifies whether the process has one or all cores enabled. The performance of some applications improves with the additional cores. This option is enabled by default. Allows you to enable or disable multi-core support for the processor.
  • Page 61 Adaptive This option is enabled by default. Configuration • Standard Fully charges your battery at a standard rate. • ExpressCharge The battery charges over a shorter period of time using Dell’s fast charging technology. • Primarily AC use • Custom If Custom Charge is selected, you can also configure Custom Charge Start and Custom Charge Stop.

  • Page 62: Post Behavior

    Option Description Type-C Connector Allows you to set the maximum power the computer can drawn from the Type-C connectors. The options are: Power 7.5 Watts 15 WattsThis option is enabled by default. POST Behavior Option Description Adapter Warnings Allows you to enable or disable the system setup (BIOS) warning messages when you use certain power adapters. Enable Adapter Warnings This option is selected by default.
  • Page 63 Option Description Prompt on Warnings and Errors. This option is enabled by default. Continue on Warnings Continue on Warnings and Errors MAC Address Pass- Allows you to replace the external NIC MAC address in a supported dock or dongle with the selected MAC address Through from the system.
  • Page 64 Option Description • WWAN • GPS (on WWAN Module) • WLAN • Bluetooth All the options are enabled by default. NOTE: For WLAN and WiGig enable or disable controls are tied together and they cannot be enabled or disabled independently. Wireless Device Allows you to enable or disable the internal wireless devices.

  • Page 65: Supported Operating Systems

    Microsoft Windows 10 Home 64 bit Other • Ubuntu OS media support • Dell.com/support to download eligible Windows OS • USB media available as upsell Downloading drivers Turn on the notebook. Go to Dell.com/support. Click Product Support, enter the Service Tag of your notebook, and then click Submit.
  • Page 66 Human Interface Devices drivers Verify if the Human Interface Devices drivers are already installed in the computer. Network drivers Install the WLAN and Bluetooth drivers from the Dell support site. Verify if the Network drivers are already installed in the computer. Software...

  • Page 67: Audio Drivers

    Audio drivers Verify if the Realtek Audio drivers are already installed in the computer. Disk drives Verify if the Disk drives drivers are already installed in the computer. Dynamic Platform and Thermal Framework Driver Verify if the Dynamic Platform and Thermal Framework Driver are already installed in the computer. Software...
  • Page 68 Management Engine Interface Verify if the Intel Management Engine Interface drivers are already installed in the computer. Serial IO driver Verify if the drivers for Touchpad, and Portable Device are installed. Figure 3. Serial IO driver Software...
  • Page 69 USB drivers Verify if the USB drivers are already installed in the laptop. Security drivers This section lists the security devices in the Device Manager. Security device drivers Verify if the security device drivers are installed in the computer. Software...
  • Page 70 Fingerprint sensor drivers Verify if the Fingerprint sensor drivers are installed in the computer. Software...

  • Page 71: Troubleshooting

    Troubleshooting Dell Enhanced Pre-Boot System Assessment — ePSA diagnostic 3.0 You can invoke the ePSA diagnostics by performing either of the following steps: • Press the F12 key when the system boots and choosing Diagnostics option. • Press Fn+PWR when the system boots.
  • Page 72 Real Time Clock reset The Real Time Clock (RTC) reset function allows you or the service technician to recover the recently launched model Dell Latitude and Precision systems from select No POST/No Boot/No Power situations. You can initiate the RTC reset on the system from a power off state only if it is connected to AC power.

  • Page 73: Contacting Dell

    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/support.

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