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Dell Latitude 5420 Rugged Service Manual
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Dell Latitude 5420 Rugged Service Manual

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Dell Latitude 5420 Rugged
Service Manual
Regulatory Model: P85G
Regulatory Type: P85G001

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Summary of Contents for Dell Latitude 5420 Rugged

  • Page 1 Dell Latitude 5420 Rugged Service Manual Regulatory Model: P85G Regulatory Type: P85G001...
  • 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......................7 Safety instructions.................................7 Safety precautions................................7 Electrostatic discharge—ESD protection........................8 ESD field service kit ................................8 Transporting sensitive components..........................9 Turning off your computer..............................9 Turning off your — Windows............................9 Turning off your computer — Windows 7........................10 Before working inside your computer..........................10 After working inside your computer..........................
  • Page 4 Troubleshooting Touchpad............................48 Troubleshooting Your Pen............................49 Realtek HD audio drivers.............................. 49 Camera features................................50 Hard drive options................................51 Dell Command Configure..............................57 Intel HD Graphics drivers..............................60 3 Removing and installing components.................... 61 Safety instructions................................61 Before working inside your computer..........................61 Safety Precautions................................ 62 After working inside your computer..........................68...
  • Page 5 Installing the Bottom Chassis Cover........................... 82 Keyboard....................................84 Removing the Keyboard............................... 84 Installing the Keyboard..............................85 WWAN card..................................87 Removing the WWAN card............................87 Installing the WWAN card............................88 WLAN card...................................89 Removing the WLAN card............................89 Installing the WLAN card.............................. 89 Global Positioning System (GPS)............................90 Removing the GPS module............................
  • Page 6 Diagnostic LED................................... 154 Wi-Fi power cycle................................155 BIOS recovery..................................155 BIOS recovery using hard drive..........................155 BIOS recovery using USB key............................ 156 Self-Heal..................................... 156 Course Introduction..............................156 Self-Heal Instruction..............................157 Supported Latitude Models............................157 5 Getting help..........................158 Contacting Dell...................................158 Contents...

  • Page 7: 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 8: Electrostatic Discharge-Esd Protection

    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 9: 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 10: Turning Off Your Computer - Windows 7

    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 11: Technology And Components

    Technology and components This chapter details the technology and components available in the system. Topics: • Using your computer • AC-DC Adapters • Battery • Processors • Memory features • Graphics options • Corning Gorilla Glass • Pen Usage • Media Card Readers •...

  • Page 12: Stealth Mode

    Disabling stealth mode in the system setup (BIOS) 1. Power off the computer. 2. Power on the computer and at the Dell logo, tap the F2 key repeatedly to bring up the System Setup menu. 3. Expand and open the System Configuration menu.
  • Page 13 Customizing the backlit keyboard in System Setup (BIOS) 1. Turn off the computer. 2. Turn on the computer and when the Dell logo appears, press the F2 key repeatedly to bring up the System Setup menu. 3. Under System Configuration menu, select RGB Keyboard Backlight.

  • Page 14: Enabling And Disabling The Wireless (Wifi) Feature

    Figure 1. Fn key callouts 1. Fn lock key 2. Affected Fn keys 3. Fn key NOTE: Fn lock affects only the above keys (F1 to F12). Secondary functions will not require the Fn key to be pressed while enabled. Enabling the Function (Fn) lock 1.
  • Page 15 Table 1. Keyboard shortcuts Function Hot keys Description Fn+ESC Fn Lock Allows the user to toggle between locked and unlocked Fn keys. Fn+F1 Audio Volume Mute Temporarily mutes/unmutes the audio. The audio level before muting is returned after unmuting. Fn+F2 Audio Volume Down/Decrease Decreases the audio volume until minimum/off is reached.

  • Page 16: Ac-Dc Adapters

    1. Restart / Power on your computer. 2. At the first text on the screen or when the Dell logo appears, tap <F2> until the message Entering Setup appears. 3. Under General > Battery Information, you will see AC Adapter listed.
  • Page 17 130W Technology and components...

  • Page 18: Led And Cable

    LED and Cable Technology and components...

  • Page 19: Battery

    3-cell 51 Whr (Long-Life Cycle, includes 3 year limited warranty) The battery is located on the bottom of the system and is hot swap capable. This design is unlike any other Dell predecessors laptops, where system needs to be powered off when the battery is removed, without the need to remove the bottom cover.

  • Page 20: Skylake Processor

    NOTE: The clock speed and performance varies depending on the workload and other variables. Skylake processor Intel Skylake is the successor to the Intel® Broadwell processor. It is a microarchitecture redesign using an already existing process technology and it will be branded as Intel 6th Gen Core. Like Broadwell, Skylake is available in four variants with suffixes SKL-Y, SKL-H, and SKL-U.

  • Page 21: Kaby Lake - 7Th And 8Th Generation Intel Core Processors

    Feature Feature description SKL-Y SKL-U SKL-H Display 3 Independent Display Support HDMI 2.0 Display @60Hz 3840x2160 3840x2160 3840x2160 DP/eDP Display @60Hz 3840x2160 4096x2304 4096x2304 eDP 1.3, support for MPO, NV12 Media Intel Built-In Visuals Compute OpenCL 2.0 Platform 14nm process Hardware 16PCIe Graphic lanes (configurable as 1x16 or...

  • Page 22: Memory Features

    • Intel 14nm Manufacturing Process Technology • Intel Turbo Boost Technology • Intel Hyper Threading Technology • Intel Built-in Visuals • Intel HD graphics - exceptional videos, editing smallest details in the videos • Intel Quick Sync Video - excellent video conferencing capability, quick video editing and authoring •...

  • Page 23: Graphics Options

    Figure 5. Thickness difference Curved edge DDR4 modules feature a curved edge to help with insertion and alleviate stress on the PCB during memory installation. Figure 6. Curved edge Memory Errors Memory errors on the system display the new 2 - Amber, 3 - White failure code. If all memory fails, the LCD does not turn on. Troubleshoot for possible memory failure by trying known good memory modules in the memory connectors on the bottom of the system or under the keyboard, as in some portable systems.
  • Page 24 Controller Type Graphics Capacity External display Maximum Dependency memory type support resolution AMD Radeon Discrete Intel Core i5 - Discrete Dedicated, 4 GB HDMI 2.0 4096×2304 @60 Hz RX540 8350U DDR5 Additional video Intel Core i7 - ports via Rear 8650U Configurable IO Space...
  • Page 25 Integrated Graphics Controller Intel UHD Graphics 620 (8th Generation Intel Core) Display Support On System: HDMI 2.0 USB Type-C Maximum Vertical Refresh Rate Up to 85 Hz depending on resolution Operating Systems Graphics/ Video API Support DirectX 11 (Windows 7/8.1), DirectX 12 (Windows 10), OpenGL 4.3 Supported Resolutions and Max Refresh Rates (Hz) (Note: Analog System ports: and/or digital)
  • Page 26 Integrated Graphics Controller Intel UHD Graphics 620 (8th Generation Intel Core) Numbers of Displays Supported • System Ports - 3 displays max with LCD plus 1 display max on each output (HDMI, VGA (14 inches/15 inches) • Docked - 3 displays max (combo of LCD, VGA, DP, HDMI) Intel HD Graphics 520 The Intel HD Graphics 520 (GT2) is an integrated graphics unit, which can be found in various ULV (Ultra Low Voltage) processors of the Skylake generation.
  • Page 27 Specification Intel HD Graphics 520 Features QuickSync DirectX DirectX 12 (FL 12_1) Max. Displays Supported Up to 3 DP 1.2/eDP 1.3 max. resolution 3840 x 2160 @ 60 Hz HDMI max. resolution 3840 x 2160 @ 30 Hz Intel HD/UHD Graphics 620 The Intel HD/UHD Graphics 620 (GT2) is an integrated graphics unit, which can be found in various ULV (Ultra Low Voltage) processors of the Skylake generation.

  • Page 28: Amd Radeon 540 Graphics

    Specification Intel HD/UHD Graphics 620 Shared Memory Technology 14 nm Features QuickSync DirectX DirectX 12 (FL 12_1) Max. Displays Supported Up to 3 DP 1.2/eDP 1.3 max. resolution 3840 x 2160 @ 60 Hz HDMI max. resolution 3840 x 2160 @ 30 Hz AMD Radeon 540 Graphics Table 11.

  • Page 29: Corning Gorilla Glass

    Graphics Controller AMD Radeon RX 540 Graphics Maximum Vertical Refresh Rate Up to 395 Hz at 1920 x 1080 Up to 118 Hz at 3840 x 2160 Operating Systems Graphics/ Video API Support DirectX 12, OpenGL 4.5 Supported Resolutions and Max Refresh Rates (Hz) •...
  • Page 30 Youngs Modulus 76.7 GPa Poissons Ratio 0.21 Shear Modulus 31.7 GPa Vickers Hardness (200 g load) 489 kgf/mm • Un-strengthened • Strengthened 596 kgf/mm 596 kgf/mm Fracture Toughness 0.69 MPa m Coefficient of Expansion (0 ˚C - 300 ˚C) 78.8 x 10 /°C Chemical Strengthening Capability of >850MPa CS, at 50 µm Depth Of Layer(DOL)

  • Page 31: Pen Usage

    Frequency (MHz) Dielectric Constant Loss Tangent 7.01 0.012 1499 6.99 0.012 1977 6.97 0.014 2466 6.96 0.014 2986 6.96 0.014 Terminated coaxial line similar to that outlined in NIST Technical Notes 1520 and 1355-R Putting Corning Gorilla Glass 5 to the test. •...

  • Page 32: Pen Flicks

    You can move the Input Panel tab by dragging it up or down along the edge of the screen. Then, when you tap it, the Input Panel opens at the same horizontal location on the screen that the tab appears. Pen Flicks Pen flicks enable you to use the pen to perform actions that normally require a keyboard, such as pressing <Page Up>...

  • Page 33: Media Card Readers

    Media Card Readers NOTE: The media card reader is integrated into the system board on portable systems. If there is a hardware failure or the reader malfunctions, replace the system board. The media card reader expands the usefulness and functionality of portable systems, especially when used with other devices such as digital cameras, portable MP3 players, and handheld devices.

  • Page 34: Uefi Bios

    UEFI is the way applications are coded. Assembler was used if functions or applications had to be coded for the BIOS while a higher level language code will be used to program the UEFI. Dell UEFI BIOS implementation will supersede the existing two different sets of BIOS in the portables and desktop products into one single UEFI BIOS moving forward.

  • Page 35: Out-Of-Band Systems Management- Intel Vpro And Intel Standard Manageability

    A unique and new Dell Remote Provisioning feature for Intel vPro quickly activates vPro capabilities on a PC, reducing vPro set-up time from months to less than an hour. The Dell Remote Provisioning feature for Intel vPro is available as a part of the module: Dell Command...

  • Page 36: Fingerprint Reader

    The Portables Technology has an integrated fingerprint reader located on the palm rest to the right of the touch pad. The fingerprint reader is an option, so not all systems have it. Included with the driver for the fingerprint reader is a software package from Dell ControlVault, that provides functionality for the device.
  • Page 37 Speed Currently, there are 3 speed modes defined by the latest USB 3.0/USB 3.1 Gen 1 specification. They are Super-Speed, Hi-Speed and Full- Speed. The new SuperSpeed mode has a transfer rate of 4.8Gbps. While the specification retains Hi-Speed, and Full-Speed USB mode, 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.

  • Page 38: Usb Powershare

    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 39: Ethernet

    USB Type-C and USB 3.1 USB 3.1 is a new USB standard. USB 3's theoretical bandwidth is 5 Gbps, while USB 3.1's is 10 Gbps. That's double the bandwidth, as fast as a first-generation Thunderbolt connector. USB Type-C isn't the same thing as USB 3.1. USB Type-C is just a connector shape, and the underlying technology could just be USB 2 or USB 3.0.

  • Page 40: Hdmi 2.0

    Power • Ultra Low Power at cable disconnect (<1 mW) enables platform support for connected standby • Reduced power consumption during normal operation and power down modes • Integrated Intel Auto Connect Battery Saver (ACBS) • Single-pin LAN disable for easier BIOS implementation •...

  • Page 41: Software And Troubleshooting

    • Audio Return Channel - Allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround audio system, eliminating the need for a separate audio cable • 3D - Defines input/output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theater applications •...
  • Page 42 After installation Downloading the chipset driver 1. Turn on the computer. 2. Go to Dell.com/support. 3. Click Product Support, enter the Service Tag of your computer, and then click Submit. NOTE: If you do not have the Service Tag, use the autodetect feature or manually browse for your computer model.

  • Page 43: Processor

    8. After the download is complete, navigate to the folder where you saved the driver file. 9. Double-click the chipset driver file icon and follow the instructions on the screen. Processor Identifying processors in Windows 10 1. Tap Search the Web and Windows. 2.

  • Page 44: Verifying System Memory

    3. On the left pane, select Settings > General > System Information, The memory information is displayed on the right pane. Testing memory using ePSA 1. Turn on or restart your system. 2. Perform one of the following actions after the Dell logo is displayed: • With keyboard press F12. •...

  • Page 45: Display

    Figure 7. Display adapters Downloading drivers 1. Turn on the laptop. 2. Go to Dell.com/support. 3. Click Product Support, enter the Service Tag of your laptop, and then click Submit. NOTE: If you do not have the Service Tag, use the auto detect feature or manually browse for your laptop model.
  • Page 46 NOTE: You can also use the Brightness level slider to adjust the brightness manually. Adjusting brightness in Windows 7 To enable or disable automatic screen brightness adjustment: 1. Click Start → Control Panel → Display. 2. Use the Adjust brightness slider to enable or disable automatic-brightness adjustment. NOTE: You can also use the Brightness level slider to adjust the brightness manually.
  • Page 47 2. Click Display. 3. Change the display settings as required. Using touch screen in Windows 8/ Windows 10 Follow these steps to enable or disable the touch screen: 1. Go to the Charms Bar and tap All Settings 2. Tap Control Panel. 3.

  • Page 48: Troubleshooting Touchpad

    2. Enable the touch pad in the driver settings - Using the external mouse (or key strokes if no mouse is available), go into the Dell Touchpad Properties. Go to the Device Select section and enable the touch pad. If already enabled, get the latest driver from Dell support site.

  • Page 49: Troubleshooting Your Pen

    ResourceDVD or from dell.com/support. 3. If the audio is installed correctly in Windows but there still is no sound, run Dell Diagnostics on the audio controller. If these fail or no sound is heard, then replace the system board. If audio does play during this test, then the problem is most likely software related.

  • Page 50: Camera Features

    4. If this issue is happening only on external speakers and the previous steps did not help, then examine the audio connector for damage. Test the system with Dell Diagnostics. If the problem persists there, then the audio connector needs to be replaced.

  • Page 51: Hard Drive Options

    2. Select Camera from the apps list. 3. If the Camera App is not available in the apps list, search for it. Hard drive options This laptop supports M.2 SATA drives. Identifying the hard drive in Windows 10 1. Tap or click All Settings on the Windows 10 Charms Bar.
  • Page 52 Identifying the hard drive in the BIOS 1. Turn on or restart your system. 2. When the Dell logo appears, perform the following action to enter the BIOS setup program: • With keyboard — Tap F2 until the Entering BIOS setup message appears. To enter the Boot selection menu, tap F12.
  • Page 53 Valuable digital memories are protected against a hard drive failure when the system is configured for any one of three fault-tolerant RAID levels: RAID 1, RAID 5, and RAID 10. By seamlessly storing copies of data on one or more additional hard drives, any hard drive can fail without data loss or system downtime.
  • Page 54 Create a RAID Array 1. Double-click "Intel Rapid Storage Technology" icon, then below main screen appears. 2. Click the "Create" icon to create a RAID array. Here we take RAID 1 for example. 3. In "Select Volume Type", click "Real-time data protection (RAID 1)". Click "Next". 4.
  • Page 55 5. In "Confirm Volume Creation", you may review the selected configuration. Then click "Create Volume". 6. The volume is created successfully. But you still need to partition your new volume by using Windows Desk Management before adding any data. Click "OK". 7.
  • Page 56 8. In Windows Desk Management, you need to initialize a disk before Logical Disk Management can access it. Click "OK". 9. Right-click on Disk 0, click "New Simple Volume". 10. Then follow the instructions on the New Simple Volume Wizard. Technology and components...

  • Page 57: Dell Command Configure

    Dell Command Configure Dell Command | Configure (Command | Configure) is a packaged software offering that provides configuration capability to business client platforms. This product consists of a Command Line Interface (CLI) and Graphical User Interface (GUI) to configure various BIOS features.
  • Page 58 Dell Precision Workstation Mobile • Dell Precision Workstation NOTE: Dell Command | Configure will not be pre-loaded for the customer upon purchase. Customers will be able to download the software from the Dell support website. Command | Configure Graphical User Interface The Dell ™...
  • Page 59 The Command | Configure GUI is supported only on systems running the Microsoft Windows operating system. To launch the GUI, click Start > All Programs > Dell > Command Configure > Configuration Wizard or double-click the Dell Configuration Wizard on the desktop. The screen below appears: Command Line Interface This chapter provides a general overview of the Command Line Interface (CLI) utility.

  • Page 60: Intel Hd Graphics Drivers

    Bootable Image To run Command | Configure commands: 1. Copy Dell Command | Configure with the International Organization for Standardization (ISO) image to a Compact disc (CD). For more information, see Dell Command | Configure Installation Guide available at https://Dell.com/Command 2.

  • Page 61: Removing And Installing Components

    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 62: Safety Precautions

    Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in earlier Dell products. For this reason some previously approved methods of handling parts are no longer applicable.
  • Page 63 The more difficult type of damage to recognize and troubleshoot is the intermittent (also called latent or “walking wounded”) failure. The following image shows an example of intermittent damage to a memory DIMM trace. Although the damage is done, the symptoms may not become an issue or cause permanent failure symptoms for some time after the damage occurs.
  • Page 64 Figure 11. ESD Field Service Kit The anti-static mat is dissipative and should be used to safely place parts on during service procedures. When using an anti-static mat, your wrist strap should be snug and the bonding wire should be connected to the mat and to bare-metal on the system being worked on. Once deployed properly, service parts can be removed from the ESD bag and placed directly on the mat.
  • Page 65 Table 24. Wrist Straps Wrist Strap and Bonding Wire Wireless ESD Strap (Unacceptable) ESD Wrist Strap Tester The wires inside of an ESD strap are prone to damage over time. When using an unmonitored kit, it is best practice to regularly test the strap prior to each service call, and at a minimum, test once per week.
  • Page 66 Table 25. Placement of Insulator Elements Unacceptable — DIMM lying on an insulator part (plastic Acceptable — DIMM separated from the insulator part heat sink shroud) Consider the Working Environment Before deploying the ESD Field Service kit, assess the situation at the customer location. For example, deploying the kit for a server environment is different than for a desktop or portable environment.
  • Page 67 Figure 14. ESD Packaging 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. ESD Protection Summary It is strongly suggested that all field service engineers use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products.

  • Page 68: 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 69: Installing The Stylus

    2. Withdraw the stylus out of the slot. Installing the stylus 1. Insert the stylus in the slot. Removing and installing components...

  • Page 70: Sim Card

    2. Close the I/O door [1] and press the door until it latches [2]. SIM card Removing the SIM card 1. Remove the SIM card out of the slot on the system board. Removing and installing components...

  • Page 71: Installing The Sim Card

    2. Close the right I/O door. 3. Follow the procedure in After working inside your computer. Installing the SIM card 1. Follow the procedure in Before working inside your computer. 2. Open the right I/O door. 3. Insert the SIM card into the slot on the system board. Removing and installing components...

  • Page 72: Memory Card

    Memory card Installing the memory card 1. Open the right I/O door. 2. Insert the memory card in the slot on the system board. Removing the memory card 1. Remove the memory card from the slot on the system board. Removing and installing components...

  • Page 73: Handle

    2. Close the right I/O door. Handle Removing the Handle 1. Follow the procedure in Before working inside your computer. 2. Remove the two M3.5*7 screws [1] that secures the handle to the computer. 3. Separate the handle from the computer [2]. Removing and installing components...

  • Page 74: Installing The Handle

    Installing the Handle 1. Install the handle on the computer [1]. 2. Tighten the two M3.5*7 screws [2] securing the handle to the computer. 3. Follow the procedure in After working inside your computer. Removing and installing components...

  • Page 75: Latch Doors

    Latch Doors Removing the latch doors 1. Follow the procedure in Before working inside your computer. 2. Open the door. 3. Remove the screws [1] securing door hinges to the computer and lift the I/O door [2] away from the computer. Installing the latch doors 1.

  • Page 76: Battery

    3. Lock the door. 4. Follow the procedure in After working inside your computer. NOTE: Depending on its location each door may have one, two, or three screws. Battery Removing the Battery NOTE: This laptop can accommodate two hot-swap capable batteries(primary and optional), both the batteries follows the same installation and removal procedure.

  • Page 77: Installing The Batteries

    Installing the Batteries 1. Slide in the battery in battery bay to align the battery contacts[1], with one on the computer. 2. Press the edge of the battery [2] to engage the latch mechanism and lock the battery [3]. 3. Follow the procedure in After working inside your computer.

  • Page 78: Primary Ssd Carrier

    Primary SSD carrier Removing the Primary SSD carrier 1. Follow the procedure in Before working inside your computer. CAUTION: Attempt to retrieve the primary SSD carrier from an operational computer can cause operating system crash and potential data loss. 2. Remove the: Batteries. 3.

  • Page 79: Installing The Primary Ssd Carrier

    Installing the Primary SSD carrier 1. Insert the primary SSD carrier in to the computer. 2. Push the carrier into the slot until the blue tab clicks. 3. Close the right I/O door [1] and press the door until the latch [2] clicks up in locking position. Removing and installing components...

  • Page 80: Ssd

    4. Install the: Batteries 5. Follow the procedure in After working inside your computer. Removing the SSD from carrier 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Batteries. SSD(Primary 3. Remove the two 'M2*5' screws [1] and flip over the SSD carrier [2]. 4.

  • Page 81: Installing The Ssd In Carrier

    Installing the SSD in carrier 1. Connect the SSD to the interposer [1], flip over [2]. 2. Install the SSD with interposer on the SSD carrier tray preassembled with new thermal pad [3]. 3. Install the cover [1] on the SSD carrier and install the single 'M2*5' screw [2]. 4.

  • Page 82: Installing The Bottom Chassis Cover

    4. Remove the 17 'M2.5*5' screws on the bottom chassis cover [1] and remove the bottom chassis cover [2] from the computer. Installing the Bottom Chassis Cover 1. Install the bottom chassis cover over the bottom base [1] of the computer. 2.
  • Page 83 3. Tighten the two 'M2.5*6' screws [1] in the rear I/O space and close the rear and left I/O doors [2]. 4. Install the: Batteries 5. Follow the procedure in After working inside your computer. Removing and installing components...

  • Page 84: Keyboard

    Keyboard Removing the Keyboard 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries. 3. Remove the six 'M2.5*5' screws on the keyboard [1] and pry at the bottom edge of the keyboard [2]. 4. Slide the keyboard slightly [1] towards touch pad and flip it over inclined over the LCD panel [2]. 5.

  • Page 85: Installing The Keyboard

    6. Peel-off the tape on the keyboard and back-light FPC [1] and disconnect it from the system board [2]. NOTE: Tweezers might be required to access the keyboard and back-light FPC connectors on the system board. 7. Separate the keyboard from the system [3]. Installing the Keyboard 1.
  • Page 86 3. Install the keyboard cover [1] and tighten the four 'M2*3' screws [2] to secure it to the chassis. 4. Flip the keyboard [3] over on the chassis [3]. 5. Slide the keyboard towards LCD [1] to align it to screw holes [2]. Removing and installing components...

  • Page 87: Wwan Card

    6. Install the six 'M2.5*5' screws on the keyboard to secure it to the computer. 7. Follow the procedure in After working inside your computer. WWAN card Removing the WWAN card 1. Follow the procedure in Before working inside your computer.

  • Page 88: Installing The Wwan Card

    4. Disconnect the antennae cables [3] and remove the WWAN card [4] out of the M.2 slot on the system board. Installing the WWAN card 1. Install the WWAN card in the M.2 slot [1] on the system board and connect the antennae cables [2]. 2.

  • Page 89: Wlan Card

    Bottom chassis cover Batteries 4. Follow the procedure in After working inside your computer. WLAN card Removing the WLAN card 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover 3. Remove the single 'M2*3' screw [1] and remove the metal bracket [2] on the WLAN card. 4.

  • Page 90: Global Positioning System (Gps)

    3. Install the: Batteries Bottom chassis cover 4. Follow the procedure in After working inside your computer. Global Positioning System (GPS) Removing the GPS module 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover Rear I/O board 3.

  • Page 91: Installing The Gps Module

    5. Peel off the inductive tape on the GPS FPC connector [1] and disconnect the GPS FPC connector [2] from GPS module. 6. Remove the two 'M2.5*5' screws [3] and separate the GPS module [4] from the system board. Installing the GPS module 1.
  • Page 92 3. Install the RF bracket [1] on the system board and secure it using the single 'M2.5*5' screw [2]. 4. Route the aux cables for WLAN and WWAN cards through the RF bracket [3]. 5. Connect the antennae cable [4] on GPS module and route the main antennae cables [5] through the RF bracket. 6.

  • Page 93: Memory Modules

    Memory modules Removing the Memory 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover 3. Pull the clips securing the memory module [1] until the socket disengages and remove the memory module from the memory socket [2] on the system board.

  • Page 94: Coin-Cell Battery

    2. Install the: Batteries Bottom Chassis Cover 3. Follow the procedure in After working inside your computer. Coin-cell battery Removing the Coin cell 1. Follow the procedure in Before working inside your computer. 2. Remove the: Bottom chassis cover Batteries NOTE: Removing or Disconnecting the coin cell may reset systemboard / BIOS / system time to defaults or engage bit locker or other similar security protocol devices.

  • Page 95: Installing The Coin Cell

    Installing the Coin cell 1. Install the coin cell [1] and connect the coin cell connector to the system board [2]. 2. Install the: Bottom chassis cover Batteries 3. Follow the procedure in After working inside your computer. Removing and installing components...

  • Page 96: Pcie Heatsink Fan Assembly

    PCIe Heatsink Fan Assembly Removing the PCIe Heatsink fan assembly 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover 3. Disconnect the fan cable [1], loosen the four 'M2*3' screws from fan case [2]. 4.

  • Page 97: Installing The Pcie Heatsink Fan Assembly

    Installing the PCIe heatsink fan assembly 1. Replace the fan to th heatsink assembly [1] and secure it using four M2*3 screws [2] . Removing and installing components...
  • Page 98 2. Install the PCIe heatsink assembly [1] in the computer and install the seven 'M2.5*5' screws on heat sink pipe [2]. 3. Tighten the three 'M2*3' screws on the fan case [1] and connect the fan cable [2]. Removing and installing components...

  • Page 99: Primary Ssd Rail

    4. Install the: Bottom chassis cover Batteries 5. Follow the procedure in After working inside your computer. Primary SSD Rail Removing the Primary SSD rail 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover PCIe heatsink assembly 3.

  • Page 100: Installing The Primary Ssd Rail

    Installing the Primary SSD rail 1. Install the primary SSD rail on the system board [1] and connect the SSD FPC connector to the system board [2]. 2. Secure the FPC connection using a piece of tape [3] and install the four 'M2*3' screws [4] securing it to the system board. 3.

  • Page 101: Docking Port Assembly

    Docking Port Assembly Removing the Docking port assembly 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover PCIe Heatsink assembly 3. Peel off the tape securing the dock FPC [1] and disconnect the dock FPC [2]. 4.

  • Page 102: Installing The Docking Port Assembly

    5. Remove the two 'M2.5*5' screws [1] and separate the docking board assembly from the chassis [2]. Installing the Docking Port Assembly 1. Install the docking port assembly [1] and install the two 'M2.5*5' screws [2] securing it to the system board. 2.

  • Page 103: Heatsink Assembly

    3. Secure the antennae cables along the routing channels [1] and connect the antennae cables on RF passthrough connectors [2]. 4. Install the: PCIe Heatsink assembly Batteries Bottom chassis cover 5. Follow the procedure in After working inside your computer. Heatsink Assembly Removing the Heatsink assembly 1.
  • Page 104 2. Remove the: Batteries Bottom chassis cover WLAN card WWAN card PCIe Heatsink fan assembly Docking port assembly NOTE: Depending on the order configuration details the system may have either of the heatsink assembly. DSC Heatsink assembly Unroute the antennae cables from the tabs on the heatsink pipe. 4.

  • Page 105: Installing The Heatsink Assembly

    NOTE: Discreet and UMA bases have different types of heatsink assembly. Installing the Heatsink assembly 1. Install the heatsink assembly [1] in the computer and tighten the two 'M1.6*5' [2] cap screw near the CPU. 2. Install the five 'M2.5*5' captive screws [3] on the thermal module securing the thermal module to the system board. 3.

  • Page 106: Rear Input-Output Board

    4. Install the: Docking port assembly PCIe Heatsink assembly WWAN card WLAN card Bottom chassis cover Batteries 5. Follow the procedure in After working inside your computer. Rear Input-Output Board Removing the Rear I-O board 1. Follow the procedure in Before working inside your computer.

  • Page 107: Installing The Rear I-O Board

    5. Loosen the three 'M2.5*5' screws [1] and lift the I/O board away from the system [2]. Installing the Rear I-O board 1. Install the rear I/O board on the system board and slide the serial port through the face plate [1]. 2.
  • Page 108 3. Tighten the two cap screws on the serial port [1] in the rear I/O space. 4. Connect the I/O board FPC [2] to the system board and then to I/O board itself [3] and secure it using a piece of tape [3]. 5.

  • Page 109: Hinge Covers

    Bottom chassis cover Batteries 6. Follow the procedure in After working inside your computer. Hinge Covers Removing the Hinge Covers 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover Heatsink 3. Remove the two 'M2.5*5' on either sides [1] and lift to remove the brackets [2] from the computer. 4.

  • Page 110: Installing The Hinge Covers

    5. Hold the LCD lid at an obtuse angle and push the hinge covers from the rear end to remove it from the computer. Installing the Hinge Covers 1. Press the latch [1] and open the LCD lid [2]. Removing and installing components...
  • Page 111 2. Keep LCD lid open at an obtuse angle and insert the hinge covers from front until it clicks in its place. 3. Place the brackets[1] and secure it using two 'M2.5*5' on either sides [2]. Removing and installing components...

  • Page 112: Display Assembly

    4. Install the: Heatsink Bottom chassis cover Batteries 5. Follow the procedure in After working inside your computer. Display assembly Removing the Display assembly 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover PCIe heatsink assembly Docking port assembly WLAN card...
  • Page 113 5. Open the LCD lid. 6. Loosen the two screws on hinges [1] and to separate the LCD assembly from the computer [2]. Removing and installing components...

  • Page 114: Installing The Display Assembly

    Installing the Display Assembly 1. Install the display assembly along the hinges at an obtuse angle [1] and install the two screws on left [2] and the right side [3]. Removing and installing components...
  • Page 115 2. Install the two 'M2*3' securing the hinges to base assembly [1] and rethread the antennae cables [2]. 3. Connect the EDP cable [3] to the system board and place the EDP bracket over the cable [4]. 4. Install the two 'M2*3' screws [5] and secure the EDP bracket to the system board. 5.

  • Page 116: Lcd Bezel And Back Cover Assembly

    Heatsink GPS card WLAN card WWAN card PCIe heatsink assembly Docking port assembly Bottom chassis cover Batteries 6. Follow the procedure in After working inside your computer. LCD Bezel and Back Cover Assembly Removing the LCD with bezel and the display back cover assembly 1.

  • Page 117: Installing The Lcd With Bezel And The Display Back Cover Assembly

    5. Peel off the tape on the LCD connections [1] and open the connector [2] to disconnect the EDP cable [3] from the LCD. 6. Peel off the reflective tape [4] on the LCD panel and the touch connector [5] and disconnect the cable from the board [6]. Installing the LCD with bezel and the display back cover assembly 1.
  • Page 118 4. Align and place the bezel on the back cover [1] and secure it using the four M2.5 epoxy screws [2]. 5. Install the 12 'M2.5' screws to secure the back cover to the LCD with bezel assembly. Removing and installing components...

  • Page 119: Microphone

    6. Install the: Display assembly. Hinge covers Heatsink PCIe heatsink assembly Docking port assembly WWAN card WLAN card Bottom chassis cover Batteries 7. Follow the procedure in After working inside your computer. Microphone Removing the Microphone 1. Follow the procedure in Before working inside your computer.

  • Page 120: Installing The Microphone

    4. Peel off the insulation tape [1] and disconnect the EDP cable connectors [2]. Installing the Microphone 1. Connect the EDP cable to the microphone daughterboard [1] and secure it using a piece of tape [2]. Removing and installing components...
  • Page 121 2. Turn over the microphone daughterboard on the back cover [1] and tighten the two 'M2*3' screws [2]. 3. Secure the microphone daughterboard using a piece of reflective tape on either sides [3] to the LCD back cover. 4. Install the: LCD with bezel assembly.

  • Page 122: Camera

    5. Follow the procedure in After working inside your computer. Camera Removing the Camera 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover Memory WLAN card WWAN card PCIe heatsink assembly Docking port assembly Heatsink Hinge covers Display assembly.

  • Page 123: Battery Bay

    4. Install the: LCD with bezel assembly Display assembly. Hinge covers Heatsink PCIe heatsink assembly Docking port assembly WWAN card WLAN card Bottom chassis cover Batteries 5. Follow the procedure in After working inside your computer. Battery Bay Removing the Battery bay 1.

  • Page 124: Installing The Battery Bay

    4. Remove the five 'M2.5*5' [1] and nine 'M2.5*3' [2] screws securing the battery bay to chassis and lift to separate the battery bay [3] from the computer. Installing the Battery bay 1. Install the battery bay [1] on the computer and tighten the five 'M2.5*5' [2] and nine 'M2.5*3' [3] securing it to the chassis. Removing and installing components...

  • Page 125: Left I/O Board

    2. Connect the battery cables to the system board. 3. Install the: PCIe Heatsink assembly Batteries Bottom chassis cover 4. Follow the procedure in After working inside your computer. Left I/O board Removing the Left I/O daughterboard 1. Follow the procedure in Before working inside your computer.

  • Page 126: Installing The Left I/O Board

    2. Remove the: Batteries Bottom chassis cover PCIe Heatsink fan assembly Battery bay 3. Peel off the tape [1], disconnect the left I/O daughterboard FPC connector [2] from the system board. 4. Disconnect the speaker cable from the left I/O daughterboard [3]. 5.
  • Page 127 2. Connect the FPC to the system board [1] and secure it using a piece of insulation tape [2]. 3. Connect the speaker cable to the left I/O daughterboard [3]. 4. Install the: Battery bay PCIe Heatsink fan assembly Bottom chassis cover Batteries 5.

  • Page 128: Smart Card

    Smart Card Removing the Smart Card Reader 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover PCIe heatsink assembly Battery bay 3. Remove the tape from the smart card reader connector[1] and disconnect it [2] from the USH board. 4.
  • Page 129 6. Remove the tape [1] and disconnect the Smartcard Reader FPC connector [2] from the USH board. 7. Loosen the four 'M2*3' screws [1] and remove the smart card [2] reader from the computer. Removing and installing components...

  • Page 130: Installing The Smart Card Reader

    Installing the Smart Card Reader 1. Insert the smart card reader through the I/O face plate [1] and install the four 'M2*3' screws to secure it to the bottom chassis [2]. 2. Connect the Smart Card FPC on the underside of the USH board [1] and secure it using a piece of tape [2]. Removing and installing components...
  • Page 131 3. Install the two 'M2*3' screws [1] and turn over the USH board to secure it to the chassis [2]. 4. Connect the finger print reader connector [1] and secure it with a piece of tape [2]. 5. Connect the smart card reader connector [3] to the USH board and secure it using a piece of tape [4]. Removing and installing components...

  • Page 132: Speaker

    6. Install the: Battery bay PCIe Heatsink assembly Bottom chassis cover Batteries 7. Follow the procedure in After working inside your computer. Speaker Removing the Speaker 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover PCIe heatsink assembly Left I/O daughterboard...

  • Page 133: Installing The Speaker

    Installing the Speaker 1. Align and place the speakers [1] on the computer and install the two 'M2.5*7' screws to secure the speaker to the base [2]. 2. Install the: Battery Bay Left I/O daughterboard PCIe Heatsink assembly Docking port assembly Bottom Chassis Cover Batteries 3.

  • Page 134: System Board

    System board Removing the System board NOTE: This system cannot be disassembled further. To access underlying components, replace the base assembly as per order details. 1. Follow the procedure in Before working inside your computer. 2. Remove the: Batteries Bottom chassis cover Keyboard PCIe heatsink assembly Docking port assembly...
  • Page 135 7. Peel off the tape [1] and disconnect the left I/O board FPC connector [2] from the system board. 8. Peel off the tape [1] and disconnect the power button cable [2]. 9. Peel off the tape [3] to disconnect the USH board and touch pad cable [4] from the system board. Removing and installing components...
  • Page 136 10. Remove the two 'M2*3' screws [1] and remove the EDP bracket [2] from the system board. 11. Remove the EDP cable using the black pull tag [3] and disconnect the DC-in cable [4] from the system board. 12. Remove the two cap screws in the rear I/O space [1]. 13.

  • Page 137: Installing The System Board

    14. Remove the eight 'M2.5*5' screws [1] and single 'M2*3' screw [2] on the system board and remove the system board from the chassis [3]. Installing the System board 1. Install the system board inserting the serial port on the system board through chassis [1] and install the eight 'M2.5*5' screws [2] and single 'M2*3' screw [3] on the system board.
  • Page 138 2. Install the two cap screws on the serial port of the system board [1]. NOTE: When installing the System Board, technicians must ensure that both the battery cables (1st & 2nd Battery) and FPC cables (Left I/O FPC and Express Card reader FPC) are not pinched under the System Board. Install the USB Type-C bracket [2] and secure it with two 'M2.5*5' screws and two 'M1.6*3.0' screws on the system board [3].
  • Page 139 6. Connect the power button cable [1] and secure it using a piece of tape [2]. 7. Connect the USH board and touch pad cables [3] to the system board and secure it using a piece of tape [4]. 8. Connect the left I/O board FPC cable [1] and secure it using a piece of tape [2]. Removing and installing components...
  • Page 140 9. Connect the rear I/O board FPC cable [1] and secure it using a piece of tape [2]. 10. Connect the battery indicator LED cable [3] and secure it using a piece of tape [4]. 11. Connect the dock FPC connector [5] and secure it using a piece of tape [6]. 12.

  • Page 141: Bottom Base Assembly

    13. Install the: Rear I/O board Battery bay Primary SSD rail GPS module WWAN card WLAN card Memory Heatsink Primary SSD Docking port assembly PCIe heatsink assembly Keyboard Bottom chassis cover Batteries 14. Follow the procedure in After working inside your computer.
  • Page 142 Memory Coin cell PCIe heatsink assembly Primary SSD rail Docking port assembly Heatsink assembly Rear I/O board Display assembly Primary SSD rail Battery bay Left I/O board Smart card Speaker System board 3. Reconnect the: • Power Button • Speakers •...
  • Page 143 5. Follow the procedure in After working inside your computer. Removing and installing components...

  • Page 144: Diagnostics

    Diagnostics This chapter details the built in troubleshooting features to diagnose the Dell systems. It also lists the invoking instructions along with related information for each diagnostics method. Topics: • ePSA Diagnostics • LCD Built-in Self Test • Battery Status Lights •...
  • Page 145 ePSA Advanced Screen The advanced screen allows more directed testing and contains more detail information about the overall health of the system. The user can get to this screen by simply swiping your finger to the left on touchscreen systems or clicking the next page button on the lower right hand side of the basic screen.
  • Page 146 2. Select the device from the left pane and click Run Tests or use Advanced Option to include or exclude any Test. ePSA Error Messages When the Dell ePSA Diagnostic detects an error while running, it will pause the test and then popup a window as shown below : Diagnostics...

  • Page 147: Validation Tools

    By responding to Retry, the diagnostic will ignore the error and rerun the last test. Capture the error code with Validation code or Scan QR code and Contact Dell NOTE: As part of the new feature, user can now mute the beeping sound code when there is an error , by pressing on at the bottom right side of the error window.
  • Page 148 2. Navigate to Online ePSA Validation Tool. 3. Enter error code, validation code, and service tag. Part serial number is optional. NOTE: For error code, use only the last 3 or 4 digits of the code. (user can enter 0142 or 142 instead of 2000–0142.) 4.
  • Page 149 Valid Error Code Example After entering the correct information, the online tools will direct user to above screen which contains information of : • Confirmation of the error code and result outcome. • Suggested Part Replacement. Diagnostics...
  • Page 150 • If customer is still covered under Dell Warranty. • Case reference number if there is an open case under the service tag . Invalid Error Code Example QR APP Validation Tool Besides using the online tool, customer can also validate the error code by scanning the QR code with a QR APP on smart phone.
  • Page 151 3. QR code scanner application will scan the code and automatically generate the link out. Click on the link to proceed. Diagnostics...
  • Page 152 The link generated will navigate customer to Dell Support website which contains information of : • Confirmation of the error code and result outcome. • Suggested Part Replacement. • If customer is still covered under Dell Warranty. • Case reference number if there is an open case under the service tag.

  • Page 153: Lcd Built-In Self Test

    Overview : LCD Built-in Self Test (BIST) Dell laptop PCs 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 PC or with the video card (GPU) and PC settings .

  • Page 154: Battery Status Lights

    Battery Status Lights If the computer is connected to an electrical outlet, the battery light operates as follows: Alternately An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop. blinking amber light and green light Alternately Temporary battery failure with AC adapter present.

  • Page 155: Wi-Fi Power Cycle

    BIOS_IMG.rcv: the recovery image stored on the USB key. BIOS recovery using hard drive NOTE: Ensure that you have the previous version and the latest version of the BIOS from the Dell support site available to use. NOTE: Ensure that you have the file type extensions visible in the operating system (OS).

  • Page 156: Bios Recovery Using Usb Key

    8. Select the path on the USB drive where BIOS recovery file is stored( root directory or "\") and follow the on-screen instructions. Self-Heal Course Introduction Self-Heal is an option that helps recover a Dell Latitude system from a No Post, No Power, No Video situation. Diagnostics...

  • Page 157: Self-Heal Instruction

    Self-Heal Instruction 1. Remove the primary battery and the AC adapter. 2. Disconnect the CMOS battery. 3. Release the flea power. Press and hold the power button down for 10 seconds or leave the system idle for 45 seconds. 4. Make sure the CMOS and primary battery are not plugged into the system. 5.

  • Page 158: 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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