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Dell Inspiron 3472 Service Manual
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Dell Inspiron 3472 Service Manual

Dell Inspiron 3472 Service Manual

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Inspiron 3472
Service Manual
Computer Model: Inspiron 3472
Regulatory Model: D14S
Regulatory Type: D14S003

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Summary of Contents for Dell Inspiron 3472

  • Page 1 Inspiron 3472 Service Manual Computer Model: Inspiron 3472 Regulatory Model: D14S Regulatory Type: D14S003...
  • Page 2 WARNING: 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: Table Of Contents

    Contents Before working inside your computer......8 ..................8 Before you begin ..................8 Safety instructions ..................9 Recommended tools ....................10 Screw list After working inside your computer......12 Technical overview............13 ..............14 System board components Removing the computer cover ........16 ....................
  • Page 4 Replacing the 2.5-inch hard drive........ 26 ....................26 Procedure ..................26 Post-requisites Removing the 3.5-inch hard drive.........27 ....................27 Prerequisites ....................27 Procedure Replacing the 3.5-inch hard drive......... 31 ....................31 Procedure ..................31 Post-requisites Removing the optical drive...........32 ....................32 Prerequisites ....................32 Procedure Replacing the optical drive...........35 ....................
  • Page 5 Replacing the coin-cell battery........42 ....................42 Procedure ..................42 Post-requisites Removing the wireless card......... 43 ....................43 Prerequisites ....................44 Procedure Replacing the wireless card..........46 ....................46 Procedure ..................47 Post-requisites Removing the antenna modules........48 ....................48 Prerequisites ....................48 Procedure Replacing the antenna modules........50 ....................
  • Page 6 Replacing the thermal-cooling assembly...... 57 ....................57 Procedure ..................57 Post-requisites Removing the system board.........58 ................... 58 Prerequisites ....................58 Procedure Replacing the system board......... 62 ....................62 Procedure ..................62 Post-requisites Downloading drivers.............64 ..............64 Downloading the audio driver ............. 65 Downloading the graphics driver ..............
  • Page 7 ............79 Running the ePSA diagnostics ....................79 Diagnostics .................. 80 Flea power release ................... 80 Wi-Fi power cycle Getting help and contacting Dell........81 .................. 81 Self-help resources ..................82 Contacting Dell...

  • Page 8: Before Working Inside Your Computer

    WARNING: Before working inside your computer, read the safety information that shipped with your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. WARNING: Disconnect all power sources before opening the computer cover or panels. After you finish working inside the computer, replace all...

  • Page 9: Recommended Tools

    CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety instructions that shipped with the product or at www.dell.com/...

  • Page 10: Screw List

    Screw list The following table provides the list of screws that are used for securing different components to the computer. Table 1. Screw list Component Secured to Screw type Quantity Screw image Computer Chassis #6-32xL6.35 cover 2.5-inch hard Drive cage #6-32xL3.6 drive 2.5-inch hard...
  • Page 11 Component Secured to Screw type Quantity Screw image Front I/O Chassis #6-32xL6.35 bracket System board Chassis #6-32xL6.35...

  • Page 12: After Working Inside Your Computer

    After working inside your computer CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer. Replace all screws and ensure that no stray screws remain inside your computer. Connect any external devices, peripherals, or cables you removed before working on your computer.

  • Page 13: Technical Overview

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance.

  • Page 14: System Board Components

    System board components power-button cable connector coin-cell battery...
  • Page 15 wireless-card slot hard-drive and optical drive power- cable connector hard-drive data cable connector optical-drive data cable connector (SATA 1) (SATA 2) processor-fan cable connector CMOS clear jumper password clear jumper service mode jumper memory-module slot...

  • Page 16: Removing The Computer Cover

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Place the computer on its side. Remove the two screws (#6-32xL6.35) that secure the cover to the chassis.

  • Page 17: Replacing The Computer Cover

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align the tabs on the computer cover with the slots on the chassis and slide it towards the front of the computer until it snaps into place.

  • Page 18: Removing The Front Bezel

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the computer cover. Procedure Place the computer in an upright position.
  • Page 19 Release the tabs on the front bezel sequentially from the top, by pushing them outwards from the chassis.
  • Page 20 Rotate and pull the front bezel away from the front of the computer to release the tabs on the front bezel from the chassis.

  • Page 21: Replacing The Front Bezel

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align and insert the tabs on the front bezel into the slots on the chassis. Rotate the front bezel towards the chassis until the tabs on the front bezel snap into place.

  • Page 22: Removing The 2.5-Inch Hard Drive

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the computer cover.

  • Page 23: Procedure

    Procedure Place the computer with the side-chassis facing up. Disconnect the power cables and the data cables from the hard-drive assembly. Remove the screw (#6-32xL3.6) that secures the hard-drive assembly to the drive cage.
  • Page 24 Slide the hard-drive assembly, and lift it off the drive cage. Remove the four screws (M3xL3.5) that secure the hard drive to the hard-drive bracket.
  • Page 25 Slide the hard drive out of the hard-drive bracket. NOTE: Note the orientation of the hard drive so that you can replace it correctly.

  • Page 26: Replacing The 2.5-Inch Hard Drive

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Slide the hard drive into the hard-drive bracket. Align the screw holes on the hard drive with the screw holes on the hard-drive bracket.

  • Page 27: Removing The 3.5-Inch Hard Drive

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the computer cover. Procedure Disconnect the power cable and the data cable from the hard-drive assembly.
  • Page 28 Remove the two screws (#6-32xL6.35) that secure the hard-drive assembly to the drive cage.
  • Page 29 Slide the hard-drive assembly and lift it off the drive cage. Turn the hard-drive assembly over and remove the two screws (#6-32xL3.6) that secure the hard-drive bracket to the hard-drive assembly.
  • Page 30 Slide the hard drive out of the hard-drive bracket.

  • Page 31: Replacing The 3.5-Inch Hard Drive

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Slide the hard drive into the hard-drive bracket. Align the screw holes on the hard drive with the screw holes on the hard-drive bracket.

  • Page 32: Removing The Optical Drive

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the computer cover. Procedure Disconnect the data cable and power cable from the optical-drive assembly.
  • Page 33 Push the release tab on the chassis and slide the drive cage off the chassis. Turn the drive cage over and remove the three screws (M2xL2) that secure the optical-drive assembly to the drive cage.
  • Page 34 Slide the optical-drive assembly out of the optical-drive bracket. Gently pull and remove the optical-drive bezel from the optical drive.

  • Page 35: Replacing The Optical Drive

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align and snap the optical-drive bezel to the optical drive. Align the screw holes on the optical-drive assembly with the screw holes on the drive cage.

  • Page 36: Removing The Memory Module

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 37: Procedure

    Procedure Locate the memory module on the system board. Using your fingertips, carefully spread apart the securing clip at each end of the memory-module slot until the memory module pops up.
  • Page 38 Slide and remove the memory module from the memory-module slot. CAUTION: To prevent damage to the memory module, hold the memory module by the edges. Do not touch the components on the memory module. NOTE: If the memory module is difficult to remove, gently ease the memory module back and forth to remove it from the slot.

  • Page 39: Replacing The Memory Module

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align the notch on the memory module with the tab on the memory-module slot. Slide the memory module into the memory-module slot.

  • Page 40: Removing The Coin-Cell Battery

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default. It is recommended that you note the BIOS setup program’s settings before removing the coin-cell battery.
  • Page 41 Remove the coin-cell battery from the socket.

  • Page 42: Replacing The Coin-Cell Battery

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Insert a new coin-cell battery (CR2032) into the battery socket with the positive side facing up, and snap it into place.

  • Page 43: Removing The Wireless Card

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.

  • Page 44: Procedure

    Procedure Locate the wireless card on the system board. Remove the screw (M2xL3.5) that secures the wireless card to the system board. Slide and remove the wireless-card bracket from the wireless card. Disconnect the antenna cables from the wireless card.
  • Page 45 Slide and remove the wireless card from the wireless-card slot.

  • Page 46: Replacing The Wireless Card

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Connect the antenna cables to the wireless card. Align the screw hole on the wireless-card bracket with the screw hole on the wireless card.

  • Page 47: Post-Requisites

    Post-requisites Follow the procedure from step 4 to step 8 in “Replacing the optical drive”. Replace the front bezel. Replace the computer cover.

  • Page 48: Removing The Antenna Modules

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 49 Remove the antenna modules, along with the cables, off the chassis.

  • Page 50: Replacing The Antenna Modules

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align and adhere the antenna modules to the chassis. Route the antenna cables through the routing guides on the chassis.

  • Page 51: Removing The Power-Button Module

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the computer cover. Remove the front bezel.
  • Page 52 Swivel open the front I/O bracket from the chassis. NOTE: Do not extend the front I/O bracket too far to prevent damage to the antennas. Disconnect the power-button cable from the system board. Press the tab on the top of the power-button module and push the power- button module to release it from the front panel.
  • Page 53 Remove the power-button module along with its cable through the slot on the front panel.

  • Page 54: Replacing The Power-Button Module

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Route the power-button board cable through the slot on the front panel. Align and snap the power-button module into the slot on the front panel.

  • Page 55: Removing The Thermal-Cooling Assembly

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the computer cover. Procedure Disconnect the processor-fan cable from the system board.
  • Page 56 Lift the thermal cooling assembly off the system board.

  • Page 57: Replacing The Thermal-Cooling Assembly

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align the screw holes on the thermal cooling assembly with the screw holes on the system board.

  • Page 58: Removing The System Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
  • Page 59 Swivel open the front I/O bracket from the Chassis. NOTE: Do not extend the front I/O bracket too far to prevent damage to the antennas. Disconnect the optical-drive data cable (SATA 2) from the system board. Disconnect the hard-drive data cable (SATA 1) from the system board. Disconnect the hard-drive and optical drive power cable from the system board.
  • Page 60 Disconnect the power-button cable from the system board. Remove the six screws (#6-32xL6.35) that secure the system board to the chassis.
  • Page 61 Slide and lift the system board off the chassis.

  • Page 62: Replacing The System Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
  • Page 63 Replace the memory module. Follow the procedure from step 5 to step 8 in “Replacing the optical drive”. Replace the front bezel. Replace the computer cover.

  • Page 64: Downloading Drivers

    Downloading drivers Downloading the audio driver Turn on your computer. Go to www.dell.com/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 65: Downloading The Graphics Driver

    Downloading the graphics driver Turn on your computer. Go to www.dell.com/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 66: Downloading The Chipset Driver

    Downloading the chipset driver Turn on your computer. Go to www.dell.com/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 67: Downloading The Network Driver

    Downloading the network driver Turn on your computer. Go to www.dell.com/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 68 If necessary, your computer starts to download and install SupportAssist. NOTE: Review on-screen instructions for browser-specific instructions. Click View Drivers for My System. Click Download and Install to download and install all driver updates detected for your computer. 10 Select a location to save the files. If prompted, approve requests from User Account Control to make changes on the system.

  • Page 69: System Setup

    Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example: optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears, you can: •...

  • Page 70: Bios Overview

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

  • Page 71: System Setup Options

    During POST, when the DELL logo is displayed, watch for the F2 prompt to appear, and then press F2 immediately. NOTE: The F2 prompt indicates that the keyboard is initialized. This prompt can appear very quickly, so you must watch for it, and then press F2.
  • Page 72 Main System Memory Displays the total computer memory installed. Memory Speed Displays the memory speed. Table 3. System setup options—Advanced menu Advanced Advanced BIOS Features Intel SpeedStep Technology Enables you to enable or disable Intel Speedstep Technology. Default: Enabled NOTE: If enabled, the processor clock speed and core voltage are adjusted dynamically based on the processor load.
  • Page 73 Enables you to set the status of the Numlock key during boot to On or Off. Default: Disabled SupportAssist System Resolution Auto OS Recovery Threshold Control the automatic boot flow for SupportAssist System Resolution Console and for Dell OS Recovery tool.
  • Page 74 Advanced The SupportAssist OS Recovery option SupportAssist OS Recovery will enable or disable the boot flow for SupportAssist OS Recovery tool in the event of certain system errors. If the SupportAssist OS Recovery setup option is set to disabled then all automatic boot flow for SupportAssist OS Recovery tool will be disabled.
  • Page 75 Security Default: Enabled PPI Bypass for Clear Command Allows you to control the TPM Physical Presence Interface (PPI). When enabled, this setting will allow the OS to skip BIOS PPI user prompts when issuing the Clear command. Changes to this setting take effect immediately.

  • Page 76: Flashing The Bios

    Follow these steps to flash the BIOS: Turn on your computer. Go to www.dell.com/support. 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 auto-detect feature or manually browse for your computer model.

  • Page 77: Troubleshooting

    Follow these steps to flash the BIOS: Turn on your computer. Go to www.dell.com/support. 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 auto-detect feature or manually browse for your computer model.

  • Page 78: Enhanced Pre-Boot System Assessment (Epsa) Diagnostics

    Press F12 after the Dell logo is displayed on the screen to access the boot menu. A Preparing one-time boot menu message appears. After the boot menu loads, select the USB recovery device under UEFI BOOT. The system reboots and a screen to Choose the keyboard layout is displayed.

  • Page 79: Running The Epsa Diagnostics

    Running the ePSA diagnostics Power-on the computer. As the computer boots, press the F12 key as the Dell logo appears. On the boot menu screen, select the Diagnostics option. Click the arrow key at the bottom left corner. Diagnostics front page is displayed.

  • Page 80: Flea Power Release

    Number of LED Beep code Problem description flashes 3 amber, 7 white Recovery image invalid 3 amber, 6 white Recovery image not found Flea power release Flea power is the residual static electricity that remains on the computer even after it has been powered off and the battery has been removed.

  • Page 81: Getting Help And Contacting Dell

    Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 8. Self-help resources Information about Dell products and www.dell.com services Dell Help & Support app Tips Contact Support In Windows search, type Contact Support, and press Enter.

  • Page 82: Contacting Dell

    Enter the Service Tag number or Product ID in the search bar. Contacting Dell To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell. NOTE: Availability varies by country and product, and some services may not be available in your country.

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