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Dell Inspiron 20 Service Manual
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Dell Inspiron 20 Service Manual

All-in-one desktop dell inspiron 20
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Inspiron 20
Service Manual
Computer Model: Inspiron 20 Model 3043
Regulatory Model: W13B
Regulatory Type: W13B001

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Summary of Contents for Dell Inspiron 20

  • Page 1 Inspiron 20 Service Manual Computer Model: Inspiron 20 Model 3043 Regulatory Model: W13B Regulatory Type: W13B001...
  • Page 2 WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2014 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell and the Dell logo are trademarks ™...

  • Page 3: Table Of Contents

    Contents Before Working Inside Your Computer........7 ....................7 Before You Begin ....................7 Safety Instructions ..................8 Recommended Tools After Working Inside Your Computer........10 Technical Overview..............11 .................11 Inside View of Your Computer ................12 System Board Components Removing the Hard Drive............14 ......................14 Procedure Replacing the Hard Drive............18...
  • Page 4 Replacing the Control-Buttons Board........27 ......................27 Procedure ....................27 Post-requisites Removing the Wireless Card............. 28 ....................28 Prerequisites ......................28 Procedure Replacing the Wireless Card............. 30 ......................30 Procedure ....................30 Post-requisites Removing the Power-Status Light Board....... 31 ..................... 31 Prerequisites ......................
  • Page 5 Replacing the System Board............42 ......................42 Procedure ....................43 Post-requisites ..............43 Entering the Service Tag in the BIOS Removing the Coin-Cell Battery..........44 ....................44 Prerequisites ......................45 Procedure Replacing the Coin-Cell Battery..........46 ......................46 Procedure ....................46 Post-requisites Removing the Memory Module..........47 .....................47 Prerequisites ......................
  • Page 6 ....................65 Post-requisites Removing the Display Bezel............66 ....................66 Prerequisites ......................66 Procedure Replacing the Display Bezel............68 ......................68 Procedure ....................68 Post-requisites Flashing the BIOS................. 69 Getting Help and Contacting Dell........... 70 ..................70 Self-Help Resources ....................70 Contacting Dell...

  • Page 7: Before Working Inside Your Computer

    Before Working Inside Your Computer CAUTION: To avoid damaging the components and cards, handle them by their edges and avoid touching pins and contacts. NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Before You Begin Save and close all open files and exit all open applications.

  • Page 8: Recommended Tools

    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 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 covers, panels, and screws before connecting to the power source.
  • Page 9 • Philips screwdriver • Flat-head screwdriver • Plastic scribe...

  • Page 10: 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 make sure that no stray screws remain inside your computer. Connect any external devices, peripherals, and cables you removed before working on your computer.

  • Page 11: 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 dell.com/regulatory_compliance. Inside View of Your Computer back cover hard-drive assembly display panel...

  • Page 12: System Board Components

    System Board Components memory-module slot (DDR3L) hard-drive cable connector (HDD) wireless-card slot (WLAN) display-backlight cable connector display-cable connector (LVDS) speaker-cable connector (SPK) power-status light board cable connector (LED)
  • Page 13 camera and control-buttons coin-cell battery cable board cable connector connector coin-cell battery...

  • Page 14: Removing The Hard Drive

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive. CAUTION: To avoid data loss, do not remove the hard drive while the computer is in Sleep or On state.
  • Page 15 Lift and slide the hard-drive assembly out of the slot on the back cover. hard-drive assembly screws (4) pull tab hard-drive cable interposer board Turn the hard-drive assembly over.
  • Page 16 Peel off the tape that secures the interposer board to the hard-drive assembly. hard-drive assembly interposer board tape Turn the hard-drive assembly over. Pull the interposer board to disconnect it from the hard-drive assembly. 10 Remove the screws that secure the hard-drive bracket to the hard drive.
  • Page 17 11 Lift the hard-drive bracket off the hard drive. interposer board screws (4) hard drive hard-drive bracket...

  • Page 18: Replacing The Hard Drive

    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 dell.com/regulatory_compliance. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive. Procedure Align the screw holes on the hard-drive bracket with the screw holes on the hard drive.

  • Page 19: Removing The Back Cover

    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 dell.com/regulatory_compliance. Prerequisites Follow the procedure from step 1 to step 5 in “Removing the Hard...

  • Page 20: Procedure

    Procedure Slide the tabs on the hard-drive door into the slots on the back cover and snap the hard-drive door into place. Remove the screws that secure the back cover to the display bezel. screws (4) back cover notch...
  • Page 21 Using a plastic scribe, pry the back cover from the display bezel starting from the notch at the bottom of the back cover. CAUTION: To avoid damaging the rubber foot, do not use the plastic scribe under the rubber-foot area. back cover rubber foot (2) plastic scribe...
  • Page 22 Carefully lift the back cover and turn it over. back cover display bezel Follow the instructions from step 1 to step 4 in “Removing the Control- Buttons Board”. Remove the hard-drive cable from the slot on the back cover. back cover hard-drive cable display bezel...
  • Page 23 Lift the back cover off the surface. back cover...

  • Page 24: Replacing The Back Cover

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Slide the hard-drive cable into the slot on the back cover. Follow the instructions from step 1 to step 3 in “Replacing the...

  • Page 25: Removing The Control-Buttons Board

    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 dell.com/regulatory_compliance. Prerequisites Follow the instructions from step 2 to step 4 in “Removing the Back Cover”.
  • Page 26 Lift the control-buttons board off the back cover. screws (3) control-buttons board control-buttons board tape cable...

  • Page 27: Replacing The Control-Buttons Board

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Align the screw holes on the control-buttons board with the screw holes on the back cover.

  • Page 28: Removing The Wireless Card

    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 dell.com/regulatory_compliance. Prerequisites Follow the instructions from step 2 to step 4 in “Removing the Back Cover”.
  • Page 29 Slide and remove the wireless card from the wireless-card slot. antenna cables (2) wireless card screw notch wireless-card slot...

  • Page 30: Replacing The Wireless Card

    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 dell.com/regulatory_compliance. Procedure CAUTION: To avoid damaging the wireless card, do not place any cables under it.

  • Page 31: Removing The Power-Status Light Board

    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 dell.com/regulatory_compliance. Prerequisites Follow the instructions from step 2 to step 4 in “Removing the Back Cover”.
  • Page 32 Lift the power status-light board off the display bezel. power status-light cable screws (2) power status-light board connector latch...

  • Page 33: Replacing The Power-Status Light Board

    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 dell.com/regulatory_compliance. Procedure Slide the power status-light board into the alignment post on the display bezel.

  • Page 34: Removing The Speakers

    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 dell.com/regulatory_compliance. Prerequisites Follow the instructions from step 2 to step 4 in “Removing the Back Cover”.
  • Page 35 Lift the speakers along with the cable off the display bezel. speaker cable screws (5) tape speakers (2) power-status light cable connector latch...

  • Page 36: Replacing The Speakers

    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 dell.com/regulatory_compliance. Procedure Align the screw holes on the speakers with the screw holes on the display bezel.

  • Page 37: Removing The System Board

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the System Setup after you replace the system board.

  • Page 38: Procedure

    Procedure Lift the connector latch and disconnect the power-status light cable from the system board. Disconnect the hard-drive cable, speaker cable, display cable, and display-backlight cable from the system board. For more information, see “System Board Components”. hard-drive cable display cable speaker cable power-status light cable connector latch...
  • Page 39 Carefully lift the system-board bracket and turn it over. screws (3) system-board bracket Disconnect the camera and control-buttons board cable from the system board. camera and control- system board buttons board cable system-board bracket...
  • Page 40 Remove the screws that secure the system-board to the system-board bracket. Lift the system board at an angle and release the ports on the system board from the slots on the system-board bracket. Turn the system board over and place it on a clean and flat surface. coin-cell battery coin-cell battery cable screws (6)
  • Page 41 11 Remove the system board off the surface. system board...

  • Page 42: Replacing The System Board

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the System Setup after you replace the system board.

  • Page 43: Post-Requisites

    Turn on the computer. Enter System Setup: – during POST, when the DELL logo is displayed, watch for the F2 prompt to appear, press F2 key on your keyboard immediately. – press the power and volume-down button simultaneously to enter System Setup.

  • Page 44: Removing The Coin-Cell Battery

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. CAUTION: Removing the coin-cell battery resets the BIOS settings to default. It is recommended that you note the BIOS settings before removing the coin-cell battery.

  • Page 45: Procedure

    Procedure Disconnect the coin-cell battery cable from the system board. Pry the coin-cell battery off the system board. coin-cell battery cable system board coin-cell battery...

  • Page 46: Replacing The Coin-Cell Battery

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Adhere the coin-cell battery to the system board. Connect the coin-cell battery cable to the system board.

  • Page 47: Removing The Memory Module

    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 dell.com/regulatory_compliance. Prerequisites Follow the instructions from step 2 to step 4 in “Removing the Back Cover”.

  • Page 48: Procedure

    Procedure Use your fingertips to spread apart the securing clips on each end of the memory-module slot until the memory module pops up. Remove the memory module from the memory-module slot on the system board. memory-module slot securing clips (2) memory module...

  • Page 49: Replacing 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 dell.com/regulatory_compliance.

  • Page 50: Procedure

    Procedure Align the notch on the memory module with the tab on the memory- module slot. Insert the memory module into the memory-module slot, and press the memory module down until it clicks into place. NOTE: If you do not hear the click, remove the memory module and reinstall it.

  • Page 51: Removing The Heat Sink

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. WARNING: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it.

  • Page 52: Procedure

    Procedure Loosen the captive screws that secure the heat sink to the system board. Lift the heat sink off the system board. captive screws (2) heat sink system board...

  • Page 53: Replacing The Heat Sink

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. CAUTION: Incorrect alignment of the heat sink can cause damage to the system board and processor. NOTE: The original thermal grease can be reused if the original system board and fan are reinstalled together.

  • Page 54: Removing The Display Assembly

    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 dell.com/regulatory_compliance. Prerequisites Follow the instructions from step 2 to step 4 in “Removing the Back Cover”.
  • Page 55 Peel off the tapes that secure the display cable to the display panel. Aluminium foil tapes (2) camera and control- buttons board cable display-backlight cable tapes (2) display panel display bezel display cable connector latches (2) Peel off the Aluminium foil tapes that secure the antenna modules to the display panel.
  • Page 56 Remove the screws that secure the display panel to the display bezel. Aluminium foil tapes (2) screws (8) display panel display bezel Pry the display panel off the display bezel and place it on a flat and clean surface. Remove the screws that secure the display-panel brackets to the display panel.
  • Page 57 10 Lift the display panel off the surface. screws (4) display panel display-panel brackets (2)

  • Page 58: Replacing The Display Assembly

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Place the display panel on a flat and clean surface. Align the screw holes on the display-panel brackets with the screw holes on the display panel.

  • Page 59: Removing The Antenna

    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 dell.com/regulatory_compliance. Prerequisites Follow the instructions from step 2 to step 4 in “Removing the Back Cover”.
  • Page 60 Remove the antenna cables from routing guides on the display bezel. Aluminium foil tapes (2) camera and control- buttons board cable wireless card antenna cables (2) Note the location of the antenna modules and peel off the Aluminium foil tapes that secure the antenna modules to the display panel. Pry off the antenna modules from the display bezel.
  • Page 61 Lift the antenna modules along with the antenna cables off the display bezel. antenna modules (2) Aluminium foil tapes (2) display bezel...

  • Page 62: Replacing The Antenna

    After Working Inside Your Computer. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. Procedure Adhere the antenna modules to the display bezel and secure the antenna modules with the Aluminium foil tapes.

  • Page 63: Removing The Camera

    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 dell.com/regulatory_compliance. Prerequisites Follow the instructions from step 2 to step 4 in “Removing the Back Cover”.
  • Page 64 Disconnect the camera cable from the camera module. Aluminium foil tape screws (2) camera cable camera module...

  • Page 65: Replacing The Camera

    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 dell.com/regulatory_compliance. Procedure Connect the camera cable to the camera module. Turn the camera module over.

  • Page 66: Removing The Display Bezel

    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 dell.com/regulatory_compliance. Prerequisites Follow the instructions from step 2 to step 4 in “Removing the Back Cover”.
  • Page 67 display bezel...

  • Page 68: Replacing The Display Bezel

    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 dell.com/regulatory_compliance. Procedure Place the display bezel on a flat and clean surface. Post-requisites Replace the antenna.

  • Page 69: Flashing The Bios

    You may need to flash (update) the BIOS when an update is available or when you replace the system board. To flash the BIOS: Turn on the computer. Go to dell.com/support. If you have your computer's Service Tag, type your computer's Service Tag and click Submit.

  • Page 70: 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 online self-help resources: Self-Help Information Self-Help Options Windows 8.1 — Open the Search Accessing Windows Help charm, type Help and Support in the search box and press Enter.
  • Page 71 NOTE: If you do not have an active internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog.

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