Dell Inspiron 3505 Service Manual
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Dell Inspiron 3505 Service Manual

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Inspiron 3505
Service Manual
Regulatory Model: P90F
Regulatory Type: P90F004
August 2020
Rev. A00

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Summary of Contents for Dell Inspiron 3505

  • Page 1 Inspiron 3505 Service Manual Regulatory Model: P90F Regulatory Type: P90F004 August 2020 Rev. A00...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2020 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

    Transporting sensitive components..........................8 After working inside your computer..........................9 Chapter 2: Removing and installing components................10 Recommended tools................................10 Screw list..................................... 10 Major components of Inspiron 3505..........................11 Base cover................................... 13 Removing the base cover............................13 Installing the base cover.............................15 Battery....................................17 Lithium-ion battery precautions..........................17...
  • Page 4 Installing the heat sink..............................36 Fan......................................37 Removing the fan................................ 37 Installing the fan................................37 Power button with optional fingerprint reader......................38 Removing the power-button with optional fingerprint reader................. 38 Installing the power-button with optional fingerprint reader................39 Fingerprint-reader board..............................40 Removing the fingerprint-reader board......................... 40 Installing the fingerprint-reader board........................
  • Page 5 Chapter 5: Troubleshooting......................76 System diagnostic lights..............................76 SupportAssist diagnostics............................... 77 Recovering the operating system..........................77 Flashing BIOS (USB key)..............................77 Flashing the BIOS................................77 WiFi power cycle................................78 Flea power release................................78 Chapter 6: Getting help and contacting Dell................79 Contents...

  • Page 6: Chapter 1: Working Inside Your Computer

    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 is shipped with the product or at www.dell.com/regulatory_compliance.

  • Page 7: Electrostatic Discharge-Esd Protection

    ESD protection is an increasing concern. 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 8: Transporting Sensitive Components

    It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.

  • Page 9: After Working Inside Your Computer

    After working inside your computer About this task CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer. Steps 1. Replace all screws and ensure that no stray screws remain inside your computer. 2. Connect any external devices, peripherals, or cables you removed before working on your computer. 3.

  • Page 10: Chapter 2: Removing And Installing Components

    Removing and installing components Recommended tools The procedures in this document may require the following tools: ● Phillips screwdrivers #0/#1 ● Plastic scribe Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box.

  • Page 11: Major Components Of Inspiron 3505

    Palm-rest and keyboard M2x4 assembly Touchpad Palm-rest and keyboard M2x2 assembly Touchpad bracket Palm-rest and keyboard M2x2 assembly Wireless-card bracket System board M2x3 Major components of Inspiron 3505 The following image shows the major components of Inspiron 3505. Removing and installing components...
  • Page 12 1. Base cover 2. Battery 3. Power-adapter port 4. Wireless card 5. M.2 2280 solid-state drive, if installed 6. M.2 2230 solid-state drive, if installed 7. System board 8. Memory module 9. Speakers 10. Palm-rest and keyboard assembly 11. Touchpad 12.

  • Page 13: Base Cover

    17. Heat sink 18. Fan NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options.
  • Page 14 Removing and installing components...

  • Page 15: Installing The Base Cover

    Steps 1. Remove the seven screws (M2.5x6) that secure the base cover to the palm-rest and keyboard assembly. 2. Loosen the two captive screws (M2.5x2.5+5) that secure the base cover to the palm-rest and keyboard assembly. 3. Using a plastic scribe, pry the base cover from the bottom left and continue to work on the sides to open the base cover. 4.
  • Page 16 Removing and installing components...

  • Page 17: Battery

    Steps 1. Connect the battery cable to the connector on the system board. 2. Place and snap the base cover into place on the palm-rest and keyboard assembly. 3. Tighten the two captive screws (M2.5x2.5+5) that secure the base cover to the palm-rest and keyboard assembly. 4.

  • Page 18: Removing The Battery

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

  • Page 19: Solid-State Drive

    About this task The following images indicate the location of the battery and provides a visual representation of the installation procedure. Steps 1. Slide the notch on the battery under the tab on the palm-rest and keyboard assembly and place the battery on the palm-rest and keyboard assembly.

  • Page 20: Installing The M.2 2230 Solid-State Drive

    ● M.2 2230 solid-state drive + 2230 mounting bracket ● M.2 2280 solid-state drive The following images indicate the location of the M.2 2230 solid-state drive and provides a visual representation of the removal procedure. Steps 1. Remove the screw (M2x2.2) that secures the M.2 thermal shield to the palm-rest and keyboard assembly. 2.

  • Page 21: Removing The M.2 2280 Solid-State Drive

    Steps 1. Place the M.2 2230 solid-state drive on the M.2 thermal shield. 2. Align the screw hole on the M.2 2230 solid-state drive to the screw mount on the M.2 thermal shield. 3. Replace the screw (M2x2) that secures the M.2 2230 solid-state drive to the M.2 thermal shield. 4.

  • Page 22: Installing The M.2 2280 Solid-State Drive

    ● M.2 2280 solid-state drive The following images indicate the location of the M.2 2280 solid-state drive and provides a visual representation of the removal procedure. Steps 1. Remove the screw (M2x2.2) that secures the M.2 thermal shield to the palm-rest and keyboard assembly. 2.

  • Page 23: Wireless Card

    Steps 1. Align the notch on the M.2 2280 solid-state drive with the tab on the M.2 card slot on the system board. 2. Slide the M.2 2280 solid-state drive into the M.2 card slot on the system board. 3. Place the the M.2 thermal shield on the M.2 2280 solid-state drive. 4.

  • Page 24: Installing The Wireless Card

    Steps 1. Remove the screw (M2x3) that secures the wireless-card bracket to the system board. 2. Lift the wireless-card bracket off the system board. 3. Disconnect the antenna cables from the wireless card. 4. Slide and remove the wireless card from the M.2 card slot on the system board. Installing the wireless card Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
  • Page 25 Steps 1. Connect the antenna cables to the wireless card. The following table provides the antenna-cable color scheme for the wireless card supported by your computer. Table 2. Antenna-cable color scheme Connectors on the wireless card Antenna-cable color Main (white triangle) White Auxiliary (black triangle) Black...

  • Page 26: I/O Board

    I/O board Removing the I/O board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The following images indicate the location of the I/O board and provides a visual representation of the removal procedure. Steps 1.

  • Page 27: Installing The I/O Board

    Installing the I/O board Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the I/O board and provides a visual representation of the installation procedure. Steps 1.

  • Page 28: Coin-Cell Battery

    Coin-cell battery Removing the coin-cell battery Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the board. About this task The following images indicate the location of the coin-cell battery and provides a visual representation of the removal procedure. Steps 1.

  • Page 29: Hard Drive

    Steps 1. Place the coin-cell battery into the coin-cell battery holder on the I/O board with the plus sign facing up. 2. Press down on the coin-cell battery to lock it in place in the coin-cell battery holder. 3. Turn the I/O board over. Next steps 1.

  • Page 30: Installing The Hard Drive

    Steps 1. Disconnect the hard-drive cable from the system board. 2. Remove the three screws (M2x3) that secure the hard-drive assembly to the palm-rest and keyboard assembly. 3. Lift the hard-drive assembly along with its cable from the palm-rest and keyboard assembly. 4.
  • Page 31 Steps 1. Place and slide the hard drive into the hard-drive bracket. 2. Align the screw holes on the hard-drive bracket with the screw holes on the hard drive. 3. Replace the four screws (M3x3) that secure the hard-drive bracket to the hard drive. 4.

  • Page 32: Memory Modules

    Memory modules Removing the memory modules Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task NOTE: Depending on the configuration ordered your computer may come shipped with one or two memory modules installed.

  • Page 33: Speakers

    Steps 1. Align the slot on the memory module with the notch on the memory module slot on the system board. 2. Slide the memory module into the slot on the system board. 3. Press down on the memory module to snap it into place. 4.

  • Page 34: Installing The Speakers

    Steps 1. Disconnect the speaker cable from the system board. 2. Remove the speaker cable from the routing guides on the palm-rest and keyboard assembly. 3. Lift the speakers along with its cable off the palm-rest and keyboard assembly. Installing the speakers Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 35: Heat Sink

    Steps 1. Using the alignment posts, place the speakers on the palm-rest and keyboard assembly. NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speaker. 2. Route the speaker cable through the routing guides on the palm-rest and keyboard assembly. 3.

  • Page 36: Installing The Heat Sink

    Steps 1. In reverse sequential order (4>3>2>1) loosen the four captive screws that secure the heat sink to the system board. NOTE: The number of screws varies depending on the configuration ordered. 2. Lift the heat sink from the system board. Installing the heat sink Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 37: Fan

    Removing the fan Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The following images indicate the location of the fan and provides a visual representation of the removal procedure. Steps 1.

  • Page 38: Power Button With Optional Fingerprint Reader

    Steps 1. Place the fan on the palm-rest and keyboard assembly. 2. Align the screw holes on the fan to the screw holes on the palm-rest and keyboard assembly. 3. Replace the two screws (M2.5x5) that secure the fan to the palm-rest and keyboard assembly. 4.

  • Page 39: Installing The Power-Button With Optional Fingerprint Reader

    Steps 1. Remove the two screws (M2x3) that secure the power-button with optional fingerprint reader to the palm-rest and keyboard assembly. 2. Open the latch and disconnect the power-button cable from the fingerprint-reader board, if applicable. NOTE: This step is only applicable if your computer was shipped with the optional fingerprint reader. 3.

  • Page 40: Fingerprint-Reader Board

    Steps 1. Using the alignment posts, place the power-button into its slot on the palm-rest and keyboard assembly. 2. Replace the two screws (M2x3) that secure the power-button to the palm-rest and keyboard assembly. 3. Connect the power-button cable to the fingerprint-reader board and close the latch, if applicable. NOTE: This step is only applicable if your computer was shipped with the optional fingerprint reader.

  • Page 41: Installing The Fingerprint-Reader Board

    The following images indicate the location of the fingerprint-reader board and provides a visual representation of the removal procedure. Steps 1. Open the latch and disconnect the power-button cable from the fingerprint-reader board. 2. Open the latch and disconnect the fingerprint-reader board cable from the fingerprint-reader board. 3.

  • Page 42: Display Assembly

    Steps 1. Place and slide the fingerprint-reader board under the securing clip on the palm-rest and keyboard assembly. 2. Connect the fingerprint-reader board cable to the fingerprint-reader board and close the latch. 3. Connect the power-button cable to the fingerprint-reader board and close the latch. Next steps 1.
  • Page 43 Removing and installing components...

  • Page 44: Installing The Display Assembly

    Steps 1. Disconnect the display cable from the system board. 2. Remove the display cable from the routing guides on the palm-rest and keyboard assembly. 3. Open the display and place the computer with the lid open at the edge of a stable elevation with the display hanging downwards.

  • Page 45: Display Bezel

    Steps 1. Place the display assembly on the palm-rest and keyboard assembly. 2. Align the screw holes on the display hinges with the screw holes on the palm-rest and keyboard assembly. 3. Replace the 6 screws (M2.5x6) that secure the display hinges to the palm-rest and keyboard assembly. 4.

  • Page 46: Installing The Display Bezel

    Steps 1. Using a plastic scribe, pry the the display bezel from the display assembly at the location shown. 2. Work around the edge of the display assembly to pry the display bezel from the display assembly. 3. Lift the display bezel from the display assembly. Installing the display bezel Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 47: Display Panel

    Steps 1. Place the display panel and display assembly on a clean and flat surface. 2. Place the display bezel on the display assembly. 3. Align the tabs on the display bezel to the slots on the display assembly. 4. Press down on the display bezel and snap the display bezel in place. Next steps 1.
  • Page 48 5. Remove the display bezel. About this task The following images indicate the location of the display panel and provides a visual representation of the removal procedure. Removing and installing components...

  • Page 49: Installing The Display Panel

    Steps 1. Remove the six screws (M2.5x2.5) that secure the display panel to the display assembly. 2. Remove the two screws (M2x2.5) that secure the display panel to the display assembly. 3. Lift and rotate the display panel forward. NOTE: Ensure that the display panel has a smooth and clean surface to rest on to prevent damage.
  • Page 50 Removing and installing components...

  • Page 51: Camera

    Steps 1. Place the display panel and display assembly on a clean and flat surface. 2. Connect the display cable to the connector on the diplay panel and close the latch. 3. Adhere the tape that secures the display-cable connector latch to the display panel. 4.

  • Page 52: Installing The Camera

    About this task The following images indicate the location of the camera and provides a visual representation of the removal procedure. Steps 1. Using the pull tab, disconnect the camera cable from the camera. 2. Using a plastic scribe, pry the camera from the display assembly. 3.

  • Page 53: Touchpad

    Steps 1. Adhere the camera in its slot on the display assembly. 2. Connect the camera cable to the camera. Next steps 1. Install the display panel. 2. Install the display bezel. 3. Install the display assembly. 4. Install the wireless card.

  • Page 54: Installing The Touchpad

    Steps 1. Open the latch and disconnect the the touchpad cable from the touchpad. 2. Remove the three screws (M2x2) that secure the touchpad bracket to the palm-rest and keyboard assembly. 3. Lift the touchpad bracket off the touchpad. 4. Remove the two screws (M2x2) that secure the touchpad to the palm-rest and keyboard assembly. 5.

  • Page 55: System Board

    Steps 1. Place the touchpad into its slot on the palm-rest and keyboard assembly. 2. Align the screw holes on the touchpad to the screw holes on the palm-rest and keyboard assembly. 3. Turn the computer over and open the display to ensure that the touchpad is equally aligned on all sides. 4.
  • Page 56 9. Remove the display assembly. About this task The following image indicates the connectors on the system board. 1. Power-adapter port cable 2. Speaker cable 3. Keyboard cable 4. Keyboard-backlight cable 5. Touchpad cable 6. Battery cable 7. Hard-drive cable 8.

  • Page 57: Installing The System Board

    Steps 1. Disconnect the power-adapter port cable from the system board. 2. Disconnect the fan cable from the system board. 3. Open the latch and disconnect the fingerprint-reader cable from the system board, if applicable. 4. Open the latch and disconnect the I/O-board cable from the system board. 5.
  • Page 58 About this task The following image indicates the connectors on the system board. 1. Power-adapter port cable 2. Speaker cable 3. Keyboard cable 4. Keyboard-backlight cable 5. Touchpad cable 6. Battery cable 7. Hard-drive cable 8. I/O-board cable 9. Fingerprint-reader cable 10.
  • Page 59 Steps 1. Place the system board on the palm-rest and keyboard assembly. 2. Align the screw hole on the system board to the screw hole on the palm-rest and keyboard assembly. 3. Replace the screw (M2x4) that secures the system board to the palm-rest and keyboard assembly. 4.

  • Page 60: Power-Adapter Port

    5. Install the memory modules. 6. Install the M.2 2230 solid-state drive, if applicable. 7. Install the M.2 2280 solid-state drive, if applicable. 8. Install the base cover. 9. Follow the procedure in After working inside your computer. Power-adapter port Removing the power-adapter port Prerequisites 1.

  • Page 61: Installing The Power-Adapter Port

    Installing the power-adapter port Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the power-adapter port and provides a visual representation of the installation procedure.

  • Page 62: Palm-Rest And Keyboard Assembly

    Palm-rest and keyboard assembly Removing the palm-rest and keyboard assembly Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the M.2 2230 solid-state drive, if applicable. 4. Remove the M.2 2280 solid-state drive, if applicable.

  • Page 63: Installing The Palm-Rest And Keyboard Assembly

    Installing the palm-rest and keyboard assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the palm-rest and keyboard assembly and provides a visual representation of the installation procedure.

  • Page 64: Chapter 3: Drivers And Downloads

    Drivers and downloads When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ SLN128938. Drivers and downloads...

  • Page 65: Chapter 4: System Setup

    System setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain changes can make your computer work incorrectly. NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed. NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen information for future reference.

  • Page 66: One Time Boot Menu

    One time boot menu To enter one time boot menu, turn on your computer, and then press F2 immediately. NOTE: It is recommended to shutdown the computer if it is on. The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options are: ●...
  • Page 67 Table 5. System setup options—Advanced menu Advanced PowerNow! Enable Enables or disables the dynamic frequency scaling and power-saving technology for the AMD processor. Default: Enabled Virtualization Enables or disables the Virtualization technology. Default: Enabled Integrated NIC Enables or disables the on-board LAN controller. Default: Enabled USB Emulation Enables or disables the USB emulation feature.
  • Page 68 Default: Disabled SupportAssist System Resolution Auto OS Recovery Threshold Controls the automatic boot flow for SupportAssist System Resolution Console and for the Dell OS Recovery tool. Default: 2 SupportAssist OS Recovery Enables or disables the boot flow for the SupportAssist OS Recovery tool in the even of certain system errors.

  • Page 69: Updating The Bios In Windows

    Default: Enabled WINDOWS SMM SECURITY MITIGATIONS TABLE Enables or disables configuration of platform features on (WSMT) Dell Client Systems with WSMT-enabled BIOS. Default: Enabled Secure Boot Enables or disables Secure Boot. Default: Enabled Table 7. System setup options—Boot menu...

  • Page 70: Updating Bios On Systems With Bitlocker Enabled

    3. Insert the USB flash drive into the computer that requires the BIOS update. 4. Restart the computer and press F12 when the Dell logo appears to display the One Time Boot Menu. 5. Using arrow keys, select USB Storage Device and press Enter.

  • Page 71: Flashing The Bios From The F12 One-Time Boot Menu

    Time boot menu on the system. Most Dell systems built after 2012 have this capability and you can confirm by booting your system to the F12 One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your system. If the option is listed, then the BIOS supports this BIOS update option.
  • Page 72 3. The flash BIOS menu will open, and then click the Flash from file. 4. Select external USB device. System setup...
  • Page 73 5. Once the file is selected, Double click the flash target file, then press submit. 6. Click the Update BIOS then system will reboot to flash the BIOS. System setup...

  • Page 74: System And Setup Password

    7. Once complete, the system will reboot and the BIOS update process is completed. System and setup password Table 9. System and setup password Password type Description System password Password that you must enter to log in to your system. Setup password Password that you must enter to access and make changes to the BIOS settings of your computer.

  • Page 75: Deleting Or Changing An Existing System Setup Password

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

  • Page 76: Chapter 5: Troubleshooting

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

  • Page 77: Supportassist Diagnostics

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

  • Page 78: Wifi Power Cycle

    Steps 1. Turn on your computer. 2. Go to www.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 auto-detect feature or manually browse for your computer model.

  • Page 79: Chapter 6: 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 11. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell Tips...

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