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Dell Vostro 5391 Service Manual
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Dell Vostro 5391 Service Manual

Dell Vostro 5391 Service Manual

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Dell Vostro 5391
Service Manual
Regulatory Model: P114G
Regulatory Type: P114G001

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Summary of Contents for Dell Vostro 5391

  • Page 1 Dell Vostro 5391 Service Manual Regulatory Model: P114G Regulatory Type: P114G001...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2018 - 2019 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 1 Working on your computer......................6 Safety instructions.................................6 Before working inside your computer..........................6 Electrostatic discharge—ESD protection.......................... 6 ESD field service kit ................................7 Transporting sensitive components............................ 8 After working inside your computer............................ 8 2 Removing and installing components..................... 9 Recommended tools................................9 Screw list....................................
  • Page 4 Removing the display assembly........................... 32 Installing the display assembly............................35 Power-adapter port................................36 Removing the power-adapter port..........................36 Installing the power-adapter port..........................37 I/O board....................................38 Removing the I/O board...............................38 Installing the I/O board..............................39 Power-button board................................40 Removing the power-button board..........................40 Installing the power-button board..........................41 Power button with fingerprint reader..........................
  • Page 5 Enhanced Pre-Boot System Assessment (ePSA) diagnostics..................73 Running the ePSA diagnostics............................. 73 System diagnostic lights..............................73 Flashing BIOS (USB key)..............................74 Flashing the BIOS................................74 Backup media and recovery options..........................75 WiFi power cycle..................................75 Flea power release................................75 5 Getting help..........................76 Contacting Dell..................................76 Contents...

  • Page 6: Working On 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 7: Esd Field Service Kit

    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. Two recognized types of ESD damage are catastrophic and intermittent failures.

  • Page 8: Transporting Sensitive Components

    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.

  • Page 9: Removing And Installing Components

    Removing and installing components Recommended tools The procedures in this document require the following tools: • Phillips #0 screwdriver • Phillips #1 screwdriver • Philips #2 screwdriver • Plastic scribe • T-30 torx screwdriver NOTE: The #0 screw driver is for screws 0-1 and the #1 screw driver is for screws 2-4 Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws,...
  • Page 10 Component Secured to Screw type Quantity Screw image Hard-drive bracket Hard drive M3x3 Heat sink System board M2x3 Palm rest and keyboard Hinges M2.5x5 assembly Display back-cover and Hinge brackets M2.5x4 antenna assembly Display back-cover and Hinge brackets M2x2 antenna assembly •...

  • Page 11: Base Cover

    Base cover Removing the base cover 1. Follow the procedure in Before working inside your computer. The following image indicates the location of the base cover and provides a visual representation of the removal procedure. Removing and installing components...

  • Page 12: Installing The Base Cover

    1. Loosen the three captive screws on the base cover. 2. Remove the four screws (M2x6) that secure the base cover to the palm-rest and keyboard assembly. 3. Using a plastic scribe, pry the base cover from the palm-rest and keyboard assembly. 4.

  • Page 13: Battery

    1. Place the computer with the hinges facing towards you. 2. Align the base cover on the palm-rest and keyboard assembly, and snap the base cover into place. 3. Replace the four screws (M2x6) that secure the base cover to the palm-rest and keyboard assembly. 4.

  • Page 14: Installing The Battery

    1. Disconnect the battery cable from the system board. 2. Remove the two screws (M2x2) that secure the battery to the palm-rest and keyboard assembly. 3. Remove the screw (M1.6x4) that secures the battery to the system board and palm-rest and keyboard assembly. 4.

  • Page 15: Coin-Cell Battery

    1. Connect the battery cable to the system board. 2. Replace the two screws (M2x2) that secure the battery to the palm-rest and keyboard assembly. 3. Replace the screw (M1.6x4) that secures the battery to the system board and palm-rest and keyboard assembly. 1.

  • Page 16: Installing The Coin-Cell Battery

    1. Disconnect the coin-cell battery cable from the system board. 2. Remove the coin-cell battery cable from the routing guide. 3. Peel the coin-cell battery off the palm-rest and keyboard assembly. Installing the coin-cell battery If you are replacing a component, remove the existing component before performing the installation procedure. The following image indicates the location of the coin-cell battery and provides a visual representation of the installation procedure.

  • Page 17: Solid-State Drive

    3. Follow the procedure in After working inside your computer. Solid-state drive Removing the M.2 2280 solid-state drive 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. The following image indicates the location of the solid-state drive and provides a visual representation of the removal procedure. 1.

  • Page 18: Removing The M.2 2230 Solid-State Drive

    The following image indicates the location of the solid-state drive and provides a visual representation of the installation procedure. 1. Align the notch on the solid-state drive with the tab on the solid-state drive slot and slide the solid-state drive into the solid-state drive slot on the system board.

  • Page 19: Installing The M.2 2230 Solid-State Drive

    1. Peel the mylar tape that secures the heat sink to the system board. 2. Remove the screw (M2x2.5) that secures the solid-state drive bracket to the system board. 3. Slide and remove the solid-state drive bracket off the solid-state drive on the system board. 4.

  • Page 20: Heat Sink

    1. Align the notch on the solid-state drive with the tab on the solid-state drive slot and slide the solid-state drive into the solid-state drive slot on the system board. 2. Slide the solid-state bracket on to the solid-state drive on the system board. 3.

  • Page 21: Installing The Heat Sink

    1. Peel the mylar tape that secures the heat sink to the system board. 2. In the reverse sequential order (7>6>5>4>3>2>1), loosen the seven captive screws that secure the heat sink to the system board. 3. Lift the heat sink off the system board. Installing the heat sink If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 22: Fan

    The following image indicates the location of the base cover and provides a visual representation of the installation procedure. 1. Align and place the screw holes on the heat sink with the screw holes on the system board. 2. In sequential order (as indicated on the heat sink), tighten the seven captive screws that secure the heat sink to the system board. 3.

  • Page 23: Installing The Fan

    1. Disconnect the I/O-board cable from the system board and I/O board. NOTE: This step is only applicable for computers shipped with a WWAN configuration. 2. Remove the two (M2x3) screws that secure the fan to the system board. 3. Lift the fan slightly off the palm-rest and keyboard assembly. 4.

  • Page 24: Speakers

    1. Connect the fan cable to the system board. 2. Align the screw holes on the fan with the screw holes on the palm-rest and keyboard assembly. 3. Replace the two (M2x3) screws that secure the fan to the palm-rest and keyboard assembly. 4.

  • Page 25: Installing The Speakers

    1. Open the latch and disconnect the touchpad cable from the system board. 2. Disconnect the speaker cable from the system board. 3. Peel the tapes that secure the speaker cable to the palm-rest and keyboard assembly. 4. Note the routing of the speaker cable and remove the speaker cable from the routing guides on the palm-rest and keyboard assembly. NOTE: Note the position of the rubber grommets before lifting the speakers.

  • Page 26: Wlan Card

    1. Using the alignment posts and rubber grommets, place the speakers in the slots on the palm-rest and keyboard assembly. 2. Route the speaker cable through the routing guides on the palm-rest and keyboard assembly. 3. Adhere the tapes that secure the speaker cable to the palm-rest and keyboard assembly. 4.

  • Page 27: Installing The Wlan Card

    The following image indicates the location of WLAN card and provides a visual representation of the removal procedure. 1. Peel the mylar tape that secures the heat sink to the system board. 2. Remove the screw (M2x2.5) that secures the WLAN-card bracket to the WLAN card and lift the WLAN-card bracket off the WLAN card.

  • Page 28: Wwan Card

    1. Connect the antenna cables to the WLAN card. 2. Align the notch on the WLAN card with the tab on the WLAN card slot and insert the WLAN card at an angle into the WLAN card slot. 3. Align and place the WLAN card bracket on the WLAN card. 4.

  • Page 29: Installing The Wwan Card

    The following image indicates the location of WWAN card and provides a visual representation of the removal procedure. 1. Remove the screw (M2x2.5) that secures the WWAN card bracket to the WWAN card. 2. Note the alignment of the WWAN-card bracket before lifting it off the WWAN card. 3.

  • Page 30: Touchpad

    1. Align the notch on the WWAN card with the tab on the WWAN-card slot and insert the WWAN card at an angle into the WWAN-card slot. 2. Connect the antenna cables to the WWAN card and align the WWAN-card bracket on the WWAN card. 3.

  • Page 31: Installing The Touchpad

    1. Peel the tapes that secure the touchpad to the palm-rest and keyboard assembly. 2. Open the latch and disconnect the touchpad cable from the system board. 3. Remove the three (M1.6x2) screws that secure the touchpad bracket to the palm-rest and keyboard assembly. 4.

  • Page 32: Display Assembly

    1. Align and place the touchpad into the slot on the palm-rest and keyboard assembly. 2. Replace the two (M1.6x2) screws that secure the touchpad to the palm-rest and keyboard assembly. 3. Align and place the touchpad bracket into the slot on the palm-rest and keyboard assembly. 4.
  • Page 33 Removing and installing components...
  • Page 34 1. Remove the two screws (M2x4) that secure the left and right display hinges to the I/O board and palm-rest and keyboard assembly. 2. Peel the tape and using the pull tab, remove the display cable from the system board. 3.

  • Page 35: Installing The Display Assembly

    Installing the display assembly If you are replacing a component, remove the existing component before performing the installation procedure. The following image indicates the location of display assembly and provides a visual representation of the installation procedure. Removing and installing components...

  • Page 36: Power-Adapter Port

    1. Align and place the palm-rest and keyboard assembly on the display assembly. 2. Using the alignment posts, close the display hinges. 3. Replace the two screws (M2x4) that secures the left and right display hinge to the I/O board and palm-rest and keyboard assembly. 4.

  • Page 37: Installing The Power-Adapter Port

    1. Disconnect the power-adapter port cable from the system board. 2. Remove the screw (M2x3) that secures the power-adapter port to the palm-rest and keyboard assembly. 3. Lift the power-adapter port, along with its cable, off the palm-rest and keyboard assembly. Installing the power-adapter port If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 38: I/O Board

    1. Connect the power-adapter port cable to the system board. 2. Replace the screw (M2x3) that secures the power-adapter port to the palm-rest and keyboard assembly. 3. Align and place the display-cable bracket on the system board. 4. Replace the screw (M2.5x3.5) that secure the display-cable bracket to the system board. 5.

  • Page 39: Installing The I/O Board

    1. Remove the screw (M2x4) that secure the left display hinge to the palm-rest and keyboard assembly. 2. Open the display hinges at an angle of 90 degrees. 3. Peel the mylar tape that secures the I/O board to the palm-rest and keyboard assembly. 4.

  • Page 40: Power-Button Board

    1. Align and place the I/O board on the palm-rest and keyboard assembly. 2. Replace the screw (M2x3) that secures the I/O board to the palm-rest and keyboard assembly. 3. Replace the screw (M2.5x2.5) that secures the I/O board to the palm-rest and keyboard assembly. 4.

  • Page 41: Installing The Power-Button Board

    2. Remove the base cover. 3. Remove the battery. 4. Remove the WLAN card. 5. Remove the fan. 6. Remove the board. The following image indicates the location of power button and provides a visual representation of the removal procedure. 1.

  • Page 42: Power Button With Fingerprint Reader

    1. Align the screw hole on the power-button board with the screw hole on the palm-rest and keyboard assembly. 2. Replace the screw (M1.6x2) that secures the power-button board to the palm-rest and keyboard assembly. 3. Align the screw hole on the power-button bracket with the screw hole on the palm-rest and keyboard assembly. 4.
  • Page 43 Removing and installing components...

  • Page 44: Installing The Power Button With Fingerprint Reader

    1. Peel the tape that secures the fingerprint-reader board to the palm-rest and keyboard assembly. 2. Open the latch and disconnect the fingerprint-reader cable from the fingerprint-reader board. 3. Open the latch and disconnect the fingerprint-reader cable from the system board. 4.
  • Page 45 Removing and installing components...
  • Page 46 1. Align and place the power button with fingerprint reader on the palm-rest and keyboard assembly. 2. Replace the screw (M1.6x2) that secure the power button with fingerprint reader to the palm-rest and keyboard assembly. 3. Align the screw holes on the power-button bracket with the screw holes on the palm-rest and keyboard assembly. 4.

  • Page 47: System Board

    System board Removing the system board 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 4. Remove the M.2 2280 solid-state drive M,2 2230 solid-state drive, whichever applicable. 5. Remove the WLAN card.

  • Page 48: Installing The System Board

    7. Open the latch and disconnect the keyboard backlit cable from the system board. 8. Disconnect the coin-cell battery cable from the system board. 9. Disconnect the power-adapter port cable from the system board. 10. Using the pull tab, disconnect the display cable from the system board. 11.

  • Page 49: Display Bezel

    7. Connect the keyboard cable to the system board and close the latch to secure the cable. 8. Connect the touchpad cable to the system board and close the latch to secure the cable. 9. Connect the fingerprint-reader cable to the system board and close the latch to secure the cable. 10.

  • Page 50: Installing The Display Bezel

    Installing the display bezel If you are replacing a component, remove the existing component before performing the installation procedure. The following image indicates the location of display bezel and provides a visual representation of the installation procedure. Align the display bezel with the display back-cover, and gently snap the display bezel into place. 1.
  • Page 51 Removing and installing components...

  • Page 52: Installing The Display Panel

    1. Using a plastic scribe, slide out the pull tab of the SR tape from both sides of the display panel. 2. Pull out a small section of the SR tape. 3. Roll the SR tape around the plastic scribe. NOTE: To avoid severing/breaking the SR tape, pull out only a small section of the SR tape and then roll the SR tape around the scribe.
  • Page 53 Removing and installing components...

  • Page 54: Display Hinges

    1. Peel off the transparent protective films from the SR tapes. 2. Align and adhere both the SR tapes to the plastic edge of the display back-cover. 3. Peel off the blue protective films from the SR tapes. 4. Starting from the top, align and place the display panel on the display back-cover. 5.

  • Page 55: Installing The Display Hinges

    The following image indicates the location of display hinges and provides a visual representation of the removal procedure. 1. Remove the four (M2.5x2.5) screws that secure the display hinges to the display back-cover. 2. Remove the two (M2x2) screws that secure the display hinges to the display back-cover. 3.

  • Page 56: Camera

    2. Replace the two (M2x2) screws that secure the display hinges to the display back-cover. 3. Replace the four (M2.5x2.5) screws to secure the display hinges to the display back-cover. 1. Install the display bezel. 2. Install the display assembly. 3.

  • Page 57: Display Cable

    1. Adhere the camera to the display cable (tape) and connect the camera cable to the camera and turn it over. 2. Using the alignment post, turn the camera over and adhere to the display back-cover. 1. Install the display panel.

  • Page 58: Installing The Display Cable

    1. Peel off the tape securing the display cable to the back-cover. 2. Peel the display cable off the display back-cover. Installing the display cable If you are replacing a component, remove the existing component before performing the installation procedure. The following image indicates the location of display cable and provides a visual representation of the installation procedure.

  • Page 59: Display Back-Cover

    5. Install the base cover. 6. Follow the procedure in After working inside your computer. Display back-cover Removing the display back-cover 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 4.

  • Page 60: Palm-Rest And Keyboard Assembly

    Place the display back-cover on a flat surface. 1. Install the camera. 2. Install the display cable. 3. Install the display panel. 4. Install the display hinges. 5. Install the display bezel. 6. Install the display assembly. 7. Install the WLAN card.

  • Page 61: Installing The Palm-Rest And Keyboard Assembly

    After performing the steps in the pre-requisites, we are left with the palm-rest and keyboard assembly. NOTE: System board can be removed with heatsink attached. Installing the palm-rest and keyboard assembly If you are replacing a component, remove the existing component before performing the installation procedure. The following image indicates the palm-rest and keyboard assembly and provides a visual representation of the installation procedure.
  • Page 62 8. Install the battery. 9. Install the base cover. 10. Follow the procedure in After working inside your computer. Removing and installing components...

  • Page 63: 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 64: System Setup Options

    System setup options NOTE: Depending on the tabletcomputerlaptop and its installed devices, the items listed in this section may or may not appear. General options Table 2. General Option Description System Information Displays the following information: • System Information: Displays BIOS Version, Service Tag, Asset Tag, Ownership Tag, Ownership Date, Manufacture Date, and the Express Service Code.

  • Page 65: Video

    Option Description Drives Allows you to enable or disable the various drives on-board: • SATA-0 (enabled by default) • SATA-1 (enabled by default) • SATA-2 (enabled by default) • M.2 PCIe SSD-0 (enabled by default) Smart Reporting This field controls whether hard drive errors for integrated drives are reported during system startup.

  • Page 66: Secure Boot

    Option Description Password Change This option lets you determine whether changes to the System and Hard Disk passwords are permitted when an administrator password is set. Allow Non-Admin Password Changes - This option is enabled by default. Non-Admin Setup Changes Determines whether changes to the setup option are permitted when an administrator password is set.

  • Page 67: Intel Software Guard Extensions

    Option Description Secure Boot Mode Allows you to modify the behavior of Secure Boot to allow evaluation or enforcement of UEFI driver signatures. • Deployed Mode (default) • Audit Mode Expert key Management Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable Custom Mode option is disabled by default.

  • Page 68: Power Management

    Option Description Intel SpeedStep Allows you to enable or disable the Intel SpeedStep mode of processor. • Enable Intel SpeedStep This option is set by default. C-States Control Allows you to enable or disable the additional processor sleep states. • C states This option is set by default.

  • Page 69: Post Behavior

    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. • Primarily AC use • Custom If Custom Charge is selected, you can also configure Custom Charge Start and Custom Charge Stop.

  • Page 70: Virtualization Support

    Virtualization support Option Description Virtualization This field specifies whether a virtual Machine Monitor (VMM) can utilize the conditional hardware capabilities provided by Intel Virtualization Technology. Enable Intel Virtualization Technology—enabled by default. VT for Direct I/O Enables or disables the Virtual Machine Monitor (VMM) from utilizing the additional hardware capabilities provided by Intel®...

  • Page 71: System Logs

    System logs Option Description BIOS Events Allows you to view and clear the System Setup (BIOS) POST events. Thermal Events Allows you to view and clear the System Setup (Thermal) events. Power Events Allows you to view and clear the System Setup (Power) events. SupportAssist System Resolution Option Description...

  • Page 72: Deleting Or Changing An Existing System Setup Password

    The computer reboots. Deleting or changing an existing system 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 F2 immediately after a power-on or reboot.

  • Page 73: Troubleshooting

    Running the ePSA diagnostics 1. Turn on your computer. 2. As the computer boots, press the F12 key as the Dell logo appears. 3. On the boot menu screen, select the Diagnostics option. 4. Click the arrow at the bottom left corner.

  • Page 74: Flashing Bios (Usb Key)

    4. Connect the bootable USB drive to the computer that needs the BIOS update. 5. Restart the computer and press F12 when the Dell logo is displayed on the screen. 6. Boot to the USB drive from the One Time Boot Menu.

  • Page 75: Backup Media And Recovery Options

    Backup media and recovery options It is recommended to create a recovery drive to troubleshoot and fix problems that may occur with Windows. Dell proposes multiple options for recovering Windows operating system on your Dell PC. For more information. see Dell Windows Backup Media and Recovery Options.

  • Page 76: Getting Help

    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: 1.

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