Inspiron 20 Owner's Manual Computer Model: Inspiron 20 Model 3048 Regulatory Model: W09B Regulatory Type: W09B001
Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. 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.
Contents Before Working Inside Your Computer.................................... 9 Before You Begin .............................................................................................. 9 Safety Instructions............................................................................................. 9 Recommended Tools...................................................................................... 10 After Working Inside Your Computer......................................
Replacing the Hard Drive........................................................... 25 Procedure.........................................................................................................25 Post-requisites................................................................................................. 25 Removing the Optical Drive...................................................... 26 Prerequisites..............................................................................................
Replacing the Converter Board................................................40 Procedure........................................................................................................ 40 Post-requisites.................................................................................................40 Removing the System-Board Shield........................................ 41 Prerequisites.....................................................................................................
Replacing the Speaker Cover....................................................49 Procedure........................................................................................................ 49 Post-requisites.................................................................................................49 Removing the Microphone........................................................ 50 Prerequisites....................................................................................................
Replacing the Heat Sink.............................................................. 61 Procedure.........................................................................................................61 Post-requisites................................................................................................. 61 Removing the Coin-Cell Battery.............................................. 62 Prerequisites................................................................................................
Replacing the System Board......................................................74 Procedure.........................................................................................................74 Post-requisites................................................................................................. 74 Removing the Camera.................................................................75 Prerequisites...............................................................................................
Before Working Inside Your Computer CAUTION: To avoid damaging the components and cards, handle them by their edges and avoid touching pins and contacts. Before You Begin 1 Save and close all open files and exit all open applications. 2 Shut down your computer. – Windows 8: Move your mouse pointer to the upper-right or lowerright corner of the screen to open the charms sidebar, and then click or tap Settings → Power → Shut down. – Windows 7: Click or tap Start → Shut down .
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.
• Philips screwdriver • Flat-head screwdriver • Plastic scribe 11
After Working Inside Your Computer CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer. 1 Replace all screws and make sure that no stray screws remain inside your computer. 2 Connect any external devices, peripherals, and cables you removed before working on your computer. 3 Replace any media cards, discs, and any other part(s) that you removed before working on your computer. 4 Connect your computer and all attached devices to their electrical outlets.
Technical Overview WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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.
System Board Components 1 fan-cable connector (FAN_CPU) 2 processor (CPU1) 3 power-adapter port cable connector (ATX2) converter-board cable connector (CONVERTER) 5 hard-drive and optical-drive 6 power cable connector (SATAP1) optical-drive cable connector (SATA_ODD) 7 hard-drive cable connector (SATA_HDD) control-buttons board cable connector (PWRCN1) 14 4 8
9 touch-control board cable connector (optional) (TOUCH) 10 speaker-cable connector (SPEAKER) 11 memory-module slot (DIMM1) 12 memory-module slot (DIMM2) 13 camera-cable connector (WEBCAM) 14 display-cable connector (LVDS) 15 wireless-card slot (NGFF_WIFI) 16 coin-cell battery (BATTERY) 15
Removing the Stand Assembly WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Place the computer face down on a soft cloth or a clean surface.
5 Pivot the stand assembly upward and slide it away from the computer. 1 screws (4) 3 stand assembly 2 back cover To remove either the stand base or stand riser from the stand assembly, follow the steps below: 6 Lift the screw handle on the stand base. 7 Using the screw handle, loosen the captive thumbscrew that secures the stand base to the stand riser.
8 18 Slide the stand base off the stand riser.
Replacing the Stand Assembly WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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.
Removing the Back Cover WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
Replacing the Back Cover WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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.
Removing the Hard Drive WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive.
3 4 Disconnect the hard-drive and optical-drive power and data cable from the hard-drive assembly. 1 hard-drive and optical-drive power and data cable 2 hard-drive assembly 3 tab 4 display-panel base Pull the sides of the hard-drive bracket to release the pins securing the hard drive.
5 24 Lift the hard drive off the hard-drive bracket.
Replacing the Hard Drive WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive.
Removing the Optical Drive WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
3 Carefully pry the optical-drive bezel and remove it from the optical-drive assembly. 4 Remove the screws that secure the optical-drive bracket to the optical drive and remove the optical-drive bracket from the optical drive.
Replacing the Optical Drive WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Align the screw holes on the optical-drive bracket with the screw holes on the optical drive.
Removing the Memory Module(s) WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
Procedure 1 2 Using the pull tab, slide the memory-module shield and remove it from the system-board shield. 1 pull tab 3 system-board shield memory-module shield Using your fingertips, pry 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.
Replacing the Memory Module(s) WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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.
Procedure NOTE: If you are installing only one memory module, insert the memory module in the memory-module slot marked as DIMM1. 1 Align the notch on the memory module with the tab on the memorymodule slot. 2 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.
1 3 memory module Slide the tabs on the memory-module shield under the tabs on the system-board shield until the memory-module shield is fully secured. Post-requisites 1 Replace the back cover. 2 Follow the procedure from step 3 to step 5 in “Replacing the Stand Assembly”.
Removing the ControlButtons Board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
3 36 Lift the control-buttons board away from the display bezel.
Replacing the Control-Buttons Board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Connect the control-buttons board cable to the control-buttons board.
Removing the Converter Board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
3 Lift the converter board off the display-panel base.
Replacing the Converter Board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Align the screw holes on the converter board with the screw holes on the display-panel base.
Removing the System-Board Shield WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
Replacing the System-Board Shield WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Slide the slots on the system-board shield into the ports on the system board.
Removing the Antenna WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
5 44 Lift the antennas along with the cables off the display-panel base.
Replacing the Antenna WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Align and adhere the antennas to the display-panel base.
Removing the VESA-Mount Bracket WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
Replacing the VESA-Mount Bracket WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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.
Removing the Speaker Cover WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
Replacing the Speaker Cover WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Align the screw holes on the speaker cover with the screw holes on the display bezel.
Removing the Microphone WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites NOTE: The instructions are applicable only for touchscreen computer.
4 Remove the microphone-module bracket off the microphone module.
Replacing the Microphone WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Align the screw hole on microphone module with the screw hole on the microphone-module bracket.
Removing the Power-Adapter Port WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
4 54 Lift the power-adapter port along with the cable off the display-panel base.
Replacing the Power-Adapter Port WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Slide the power-adapter port into the bracket on the display-panel base.
Removing the Wireless Card WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
3 Slide and remove the wireless card from the wireless-card slot on the system board.
Replacing the Wireless Card WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure CAUTION: To avoid damaging the wireless card, do not place any cables under it.
Removing the Heat Sink WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. WARNING: The heat sink may become hot during normal operation.
3 60 Lift the heat sink off the system board.
Replacing the Heat Sink WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. CAUTION: Incorrect alignment of the heat sink can cause damage to the system board and processor.
Removing the Coin-Cell Battery WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. CAUTION: Removing the coin-cell battery resets the BIOS settings to default.
3 Using a plastic scribe, gently pry out the coin-cell battery from the battery socket on the system board.
Replacing the Coin-Cell Battery WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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.
Removing the Speakers WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
4 66 Lift the speakers along with the cable off the display bezel.
Replacing the Speakers WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Align the screw holes on the speakers with the screw holes on the display bezel.
Removing the Fan WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”. 2 Remove the back cover.
3 Lift the fan along with its cable off the display-panel base.
Replacing the Fan WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Procedure 1 Align the screw holes on the fan with the screw holes on the displaypanel base.
Removing the System Board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. NOTE: Your computer’s Service Tag is stored in the system board.
Procedure 1 Lift the connector latch and disconnect the display cable from the system board. 2 Disconnect the fan cable, power-adapter port cable, converter-board cable, hard-drive and optical-drive power cable, optical-drive cable, hard-drive cable, control-buttons board cable, touch-control board cable (optional), speaker cable, and camera cable from the system board. For more information, see System Board Components.
11 touch-control board cable (optional) 12 speaker cable 3 Remove the screws that secure the system board to the display-panel base. 4 Lift the system board at an angle and release the ports on the system board from the tab on the display-panel base.
Replacing the System Board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. NOTE: Your computer’s Service Tag is stored in the system board.
Removing the Camera WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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. Prerequisites 1 Follow the procedure from step 1 to step 5 in “Removing the Stand Assembly”.
4 5 76 Disconnect the converter-board cable from the display panel. 1 routing guide 2 camera cable 3 system board 4 speaker cable 5 control-buttons board cable 6 converter-board cable Remove the screws that secure the display-panel base to the display bezel.
6 Push and release the tabs that secure the display-panel base to the display bezel. 1 tabs (3) 2 screws (16) 3 display bezel 4 display-panel base 7 Note the touch-control board cable (optional) routing and display cable routing. 8 Disconnect the touch-control board cable (optional) from the system board. 9 Lift the connector latch and disconnect the display cable from the system board.
10 Release the touch-control board cable (optional) and display cable through the slots on the display-panel base.
11 Lift the display-panel base off the display panel and keep it on a flat and clean surface. 1 display-panel base 12 Remove the screws that secure the camera assembly to the display bezel.
13 Carefully lift the camera assembly and turn it over. 1 display bezel 3 screws (2) 2 camera assembly 14 Disconnect the camera cable from the camera assembly. 15 Remove the screw that secures the camera to the camera bracket. 16 Lift the camera at an angle and remove it from under the tab on the camera bracket.
Replacing the Camera WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in 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.
Post-requisites 1 Replace the VESA-mount bracket. 2 Replace the system-board shield. 3 Follow the procedure from step 4 and step 5 in “Replacing the Optical Drive”. 4 Replace the back cover. 5 Follow the procedure from step 3 to step 5 in “Replacing the Stand Assembly”.
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: 1 Turn on the computer. 2 Go to dell.com/support. 3 If you have your computer's Service Tag, type your computer's Service Tag and click Submit. If you do not have your computer's Service Tag, click Detect My Product to allow automatic detection of the Service Tag.
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 Accessing Windows Help Windows 8 — Open the Search charm, type Help and Support in the search box and press . Windows 7 — Click Start and Support. Information about Dell products and services See dell.
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.
