Dell P117F003 Service Manual
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Dell P117F003 Service Manual

Dell P117F003 Service Manual

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Vostro 7620
Service Manual
Regulatory Model: P117F
Regulatory Type: P117F003
April 2022
Rev. A00

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Summary of Contents for Dell P117F003

  • Page 1 Vostro 7620 Service Manual Regulatory Model: P117F Regulatory Type: P117F003 April 2022 Rev. A00...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2022 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, 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 Chapter 1: Working inside your computer..................6 Safety instructions................................6 Before working inside your computer........................6 After working inside your computer..........................9 Chapter 2: Removing and installing components................10 Recommended tools................................10 Screw list..................................... 10 Major components of Vostro 7620..........................11 Base cover................................... 13 Removing the base cover............................13 Installing the base cover.............................15 Memory module..................................
  • Page 4 Updating the BIOS from the F12 One-Time boot menu..................72 Chapter 5: Troubleshooting......................73 Handling swollen Lithium-ion batteries........................73 Locate the Service Tag or Express Service Code of your Dell computer ..........73 System-diagnostic lights..............................74 SupportAssist diagnostics............................... 75 Built-in self-test (BIST)..............................75 M-BIST...................................
  • Page 5 LCD Built-in Self Test (BIST)........................... 76 Recovering the operating system..........................76 WiFi power cycle................................76 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 Ensure that your computer is shut down and the AC adapter is disconnected. a. Hold <B> key on the keyboard and press the power button for 3 seconds or until the Dell logo appears on the screen. b. Press any key to continue.
  • Page 8 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

    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. After working inside your computer About this task CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer.

  • Page 10: Chapter 2: Removing And Installing Components

    Removing and installing components NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Recommended tools The procedures in this document may require the following tools: ● Phillips screwdriver #0 ● Phillips screwdriver #1 ●...

  • Page 11: Major Components Of Vostro 7620

    Table 1. Screw list (continued) Component Screw type Quantity Screw image System board M2x2 USB Type-C bracket M2x4 Power button with fingerprint M2x3 reader Power button board M2x3 Power-adapter port M2.5x5 I/O board M2x3 RJ45 network-port assembly M2x5 Touchpad bracket M1.6x2 Touchpad M2x1.8...
  • Page 12 1. Base cover 2. Power-adapter port 3. Memory module 4. Speaker (tweeters) module 5. Right Fan 6. System board 7. Battery 8. Speaker (woofers) module 9. Palm-rest and keyboard assembly 10. Display assembly 11. RJ45 bracket 12. I/O board 13. Wireless card 14.

  • Page 13: Base Cover

    19. Power board 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 (M2x4) that secure the base cover to the palm-rest and keyboard assembly. 2. Loosen the two captive screws that secure the base cover to the palm-rest and keyboard assembly. 3. Using a plastic scribe, pry the base cover from the top left and continue to work on the sides to open the base cover. 4.
  • Page 16 Removing and installing components...

  • Page 17: Memory Module

    Steps 1. Ensure that the battery cable has been connected to 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 on the base cover that secure the base cover to the palm-rest and keyboard assembly. 4.

  • Page 18: Installing The Memory Module

    Steps 1. Lift the Mylar covering the memory module. 2. Using your fingertips, carefully spread apart the securing-clips on each end of the memory-module slot until the memory module pops-up. 3. Remove the memory module from the memory-module slot on the system board. Installing the memory module Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 19: Solid-State Drive

    Steps 1. Lift the Mylar covering the memory-module slot. 2. Align the notch on the memory module with the tab on the memory-module slot on the system board. 3. Slide the memory module into the memory-module slot on the system board. 4.
  • Page 20 If you are replacing the M.2 2280 solid-state drive (shipped with the computer) with an M.2 2230 solid-state drive, a mounting bracket for the M.2 2230 solid-state drive is required. Please contact Dell support to purchase the mounting bracket for the M.2 2230 solid-state drive.

  • Page 21: Installing The M.2 2230 Solid-State Drive

    If you are replacing the M.2 2280 solid-state drive (shipped with the computer) with an M.2 2230 solid-state drive, a mounting bracket for the M.2 2230 solid-state drive is required. Please contact Dell support to purchase the mounting bracket for the M.2 2230 solid-state drive.

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

    If you are replacing the M.2 2280 solid-state drive (shipped with the computer) with an M.2 2230 solid-state drive, a mounting bracket for the M.2 2230 solid-state drive is required. Please contact Dell support to purchase the mounting bracket for the M.2 2230 solid-state drive.

  • Page 23: Installing The M.2 2280 Solid-State Drive

    If you are replacing the M.2 2280 solid-state drive (shipped with the computer) with an M.2 2230 solid-state drive, a mounting bracket for the M.2 2230 solid-state drive is required. Please contact Dell support to purchase the mounting bracket for the M.2 2230 solid-state drive.

  • Page 24: Wireless Card

    2. Slide the M.2 2280 solid-state drive into the solid-state drive slot 3. Slide the M.2 thermal shield back in place and replace the screw (M2x3) that secures it to the system board. Next steps 1. Install the base cover. 2.

  • Page 25: 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 wireless card. 3. Disconnect the antenna cables from the wireless card. 4. Slide and remove the wireless card from the wireless-card slot. Installing the wireless card Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
  • Page 26 Steps 1. Align the notch on the wireless card with the tab on the wireless-card slot and insert the wireless card at an angle into the wireless-card slot. 2. Connect the antenna cables to the wireless card. Table 2. Antenna-cable color scheme Connectors on the Antenna-cable color Silkscreen marking...

  • Page 27: 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 28: Installing The Battery

    Steps 1. Disconnect the battery cable from the system board. 2. Remove the five screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 3. Lift the battery off the palm-rest and keyboard assembly. Installing the battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 29: Power-Adapter Port

    Steps 1. Align the screw holes on the battery with the screw holes on the palm-rest and keyboard assembly. 2. Replace the five screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 3. Connect the battery cable to the system board. Next steps 1.

  • Page 30: Installing The Power-Adapter Port

    Steps 1. Remove the two screws (M2.5x5) that secure the left display hinge to the system board. 2. Open the right display hinge at an angle of 90 degrees. 3. Peel the tape that secures the display-cable connector latch to the system board. 4.

  • Page 31: Fan

    Steps 1. Place the power-adapter port into the slot on the palm-rest and keyboard assembly. 2. Adhere the tapes that secure the power-adapter port cable to the system board. 3. Connect the power-adapter port cable to the system board. 4. Adhere the tape that secures the power-adapter port cable to the system board. 5.

  • Page 32: Installing The Left Fan

    Steps 1. Disconnect the left-fan cable from the system board. 2. Remove the two screws (M2x5) that secure the left fan to the palm-rest and keyboard assembly. 3. Lift the left fan off the palm-rest and keyboard assembly. Installing the left fan Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 33: Removing The Right Fan

    Steps 1. Align the screw holes of the left fan with the screw holes on the palm-rest and keyboard assembly. 2. Replace the two screws (M2x5) that secure the left fan to the palm-rest and keyboard assembly. 3. Connect the left fan cable to the system board. Next steps 1.

  • Page 34: Installing The Right Fan

    Steps 1. Disconnect the right-fan cable from the system board. 2. Remove the two screws (M2x5) that secure the right fan to the palm-rest and keyboard assembly. 3. Lift the right fan off the palm-rest and keyboard assembly. Installing the right fan Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 35: Heat Sink

    Steps 1. Align the screw holes of the right fan with the screw holes on the palm-rest and keyboard assembly. 2. Replace the two screws (M2x5) that secure the right fan to the palm-rest and keyboard assembly. 3. Connect the right-fan cable to the system board. Next steps 1.

  • Page 36: Installing The Heat Sink

    Steps 1. In reverse sequential order (7>6>5>4>3>2>1), loosen the seven captive screws that secure the heat sink to the system board. 2. Lift the heat sink off the system board. Installing the heat sink Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task NOTE: If either the system board or the heat sink is replaced, use the thermal grease provided in the kit to ensure that...

  • Page 37: Removing The Heat Sink (From Computers With A Discrete Graphics Card)

    Steps 1. Align the captive screws on the heat sink to the screw holes on the system board. 2. In sequential order (1>2>3>4>5>6>7), tighten the seven captive screws that secure the heat sink to the system board. Next steps 1. Install the base cover.

  • Page 38: Installing The Heat Sink (In Computers With A Discrete Graphics Card)

    Steps 1. In reverse sequential order (7>6>5>4>3>2>1), loosen the seven captive screws that secure the heat sink to the system board. 2. Lift the heat sink off the system board. Installing the heat sink (in computers with a discrete graphics card) Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 39: Display Assembly

    Steps 1. Align the screw holes on the heat sink to the screw holes on the system board. 2. In sequential order (1>2>3>4>5>6>7), tighten the seven captive screws that secure the heat sink to the system board. Next steps 1. Install the base cover.
  • Page 40 Steps 1. Remove the two screws (M2.5x5) that secure the left display hinge to the system board. 2. Open the left display hinge at an angle of 90 degrees. 3. Remove the two screws (M2.5x5) that secure the right display hinge to the system board. 4.

  • Page 41: Installing The Display Assembly

    Installing the display assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image(s) indicate the location of the display assembly and provides a visual representation of the installation procedure.

  • Page 42: I/O Board

    3. Close the left display hinge and align the screw holes on the left display hinge with the screw holes on the palm-rest and keyboard assembly. 4. Replace the two screws (M2.5x5) that secure the left display hinge to the palm-rest and keyboard assembly. 5.
  • Page 43 Steps 1. Remove the two screws (M2x5) that secure the RJ45 network-port assembly to the I/O board. 2. Lift the RJ45 network-port assembly off the I/O board. 3. Peel the tape that secures the I/O-board cable connector latch to the I/O board. 4.

  • Page 44: 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 image(s) indicate the location of the I/O board and provides a visual representation of the installation procedure. Steps 1.

  • Page 45: Speakers

    6. Close the latch and replace the clear adhesive tape. 7. Connect the optional fingerprint-reader cable to the I/O board and close the latch to secure the cable. 8. Align the screw holes on the RJ45 network-port assembly with the screw holes of the I/O board. 9.

  • Page 46: Installing The Speakers (Woofers)

    Steps 1. Open the latch and disconnect the touchpad cable from the system board. 2. Peel the tapes that secure the speaker (woofers) cable to the system board. 3. Disconnect the speaker (woofers) cable from the system board. 4. Remove the speaker (woofers) cable from the routing guides on the palm-rest and keyboard assembly. 5.
  • Page 47 About this task The following image(s) indicate the location of the speakers (woofers) and provides a visual representation of the installation procedure. Steps 1. Using the alignment posts, place the speakers (woofers) on the palm-rest and keyboard assembly. NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speaker. 2.

  • Page 48: Removing The Speakers (Tweeters)

    3. Install the base cover. 4. Follow the procedure in After working inside your computer. Removing the speakers (tweeters) Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer.

  • Page 49: Touchpad

    Steps 1. Using the alignment posts, place the speakers (tweeters) on the palm-rest and keyboard assembly. NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speaker. 2. Connect the speaker (tweeters) cable to the system board. Next steps 1.

  • Page 50: Installing The Touchpad

    Steps 1. Open the latch of the touchpad connector and disconnect the touchpad cable from the touchpad. 2. Peel off the adhesive tape off the touchpad. 3. Remove the three screws (M1.6x2) that secure the touchpad bracket to the palm-rest and keyboard assembly. 4.

  • Page 51: Power-Button Board

    Steps 1. Slide the touchpad onto the palm-rest and keyboard assembly. 2. Replace the two screws (M2x1.8) that secure the touchpad to the palm-rest and keyboard assembly. 3. Align the touchpad bracket and place it on the palm-rest and keyboard assembly. 4.

  • Page 52: Installing The Power-Button Board

    Steps 1. Remove the two screws (M2.5x5) that secure the left display hinge of the display assembly to the system board. 2. Open the left display hinge at an angle of 90 degrees. 3. Open the latch and disconnect the power-button board cable from the I/O board. 4.

  • Page 53: Power Button With Optional Fingerprint Reader

    Steps 1. Place the power-button board on the palm-rest and keyboard assembly. 2. Align the screw holes of the power-button board with the screw holes on the palm-rest and keyboard assembly. 3. Replace the two screws (M2x3) that secure the power-button board to the palm-rest and keyboard assembly. 4.
  • Page 54 NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer. 2. Remove the base cover. 3. Remove the left fan. 4. Remove the heat sink.. 5. Remove the power-button board.

  • Page 55: Installing The Power Button With Optional Fingerprint Reader

    Installing the power button with optional fingerprint reader Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image(s) indicate the location of the power button with optional fingerprint reader and provides a visual representation of the installation procedure.

  • Page 56: System Board

    Next steps 1. Install the power-button board. 2. Install the heat sink. 3. Install the left fan. 4. Install the base cover. 5. Follow the procedure in After working inside your computer. System board Removing the system board Prerequisites 1. Follow the procedure in Before working inside your computer.
  • Page 57 7. Speaker (woofers) cable connector 8. Touchpad-cable connector 9. I/O board-cable connector 10. Left fan cable connector The following image(s) indicate the location of the system board and provides a visual representation of the removal procedure. Steps 1. Disconnect the speaker (tweeter) cable from the system board. 2.

  • Page 58: Installing The System Board

    Installing the system board Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the connectors on your system board. 1. Speaker (tweeters) cable connector 2. Power-cable connector 3.
  • Page 59 Steps 1. Install the system board at an angle and ensure that the ports are properly aligned with the port openings. 2. Place the system board on the palm-rest and keyboard assembly. 3. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly. 4.

  • Page 60: Palm-Rest And Keyboard Assembly

    2. Install the heat sink. 3. Install the wireless card. 4. Install the M.2 2230 solid-state drive M.2 2280 solid-state drive, whichever applicable. 5. Install the memory module. 6. Install the base cover. 7. Follow the procedure in After working inside your computer.

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

    Steps After performing the pre-requisites, you are left with the palm-rest and keyboard assembly. NOTE: The palm-rest and keyboard assembly consists of the following components: ● Keyboard ● Wireless antenna (2) 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 image(s) indicate the location of the palm-rest and keyboard assembly and provides a visual representation of the installation procedure.
  • Page 62 Steps Place the palm-rest and keyboard assembly on a flat and clean surface and perform the post-requisites to install the palm-rest and keyboard assembly. NOTE: The palm-rest and keyboard assembly consists of the following components: ● Keyboard ● Wireless antenna (2) Next steps 1.

  • Page 63: 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 000123347. Drivers and downloads...

  • Page 64: 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 65: Boot Sequence

    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: ● Access System Setup by pressing F2 key ●...
  • Page 66 Table 4. System setup options—System information menu (continued) Overview Processor ID Displays the processor identification code. Processor L2 Cache Displays the processor L2 Cache size. Processor L3 Cache Displays the processor L3 Cache size. Microcode Version Displays the microcode version. Intel Hyper-Threading Capable Displays whether the processor is Hyper-Threading (HT) capable.
  • Page 67 Table 5. System setup options—Boot Configuration menu (continued) Boot Configuration Expert Key Management Enable Custom Mode Allows the PK, KEK, db, and dbx security key databases to be modified. Default: OFF NOTE: If Custom Mode is not enabled, any changes made with respect to the keys will not be saved.
  • Page 68 Enables or disables cloud Service OS recovery if the main OS fails to boot within the number of failures equal or greater than the value specified by Dell Auto OS Recovery Threshold, and local Service does not boot, or is not installed.

  • Page 69: System And Setup Password

    Table 12. System setup options—Pre-boot Behavior menu Pre-boot Behavior Adapter warnings Enable Adapter warnings Enables or disables the computer to display adapter warning messages when adapters with too little power capacity are detected. Default: ON Warnings and Errors Selects an action on encountering a warning or error during boot. Default: Prompt on Warnings and Errors.

  • Page 70: Deleting Or Changing An Existing System Setup Password

    About this task To enter the system setup, press F12 immediately after a power-on or reboot. Steps 1. In the System BIOS or System Setup screen, select Security and press Enter. The Security screen is displayed. 2. Select System/Admin Password and create a password in the Enter the new password field. Use the following guidelines to assign the system password: ●...

  • Page 71: Clearing Bios (System Setup) And System Passwords

    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 72: Updating The Bios From The F12 One-Time Boot Menu

    One-Time boot menu on the computer. Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12 One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the BIOS supports this BIOS update option.

  • Page 73: Chapter 5: Troubleshooting

    ● Using a non-Dell or incompatible battery may increase the risk of fire or explosion. Replace the battery only with a compatible battery purchased from Dell that is designed to work with your Dell computer. Do not use a battery from other computers with your computer.

  • Page 74: System-Diagnostic Lights

    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. Table 15. Diagnostic-light LED codes...

  • Page 75: Supportassist Diagnostics

    Table 15. Diagnostic-light LED codes (continued) Diagnostic light codes Problem description (Amber,White) Memory error Power rail error Camera status light: Indicates whether the camera is in use. ● Solid white—Camera is in use. ● Off—Camera is not in use. Caps Lock status light: Indicates whether Caps Lock is enabled or disabled. ●...
  • Page 76 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 77 NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device. Steps 1. Turn off your computer. 2. Turn off the modem. 3. Turn off the wireless router. 4. Wait for 30 seconds. 5. Turn on the wireless router. 6. Turn on the modem. 7.

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