DELL Vostro 2520
Contents
1. 1 Visit support dell com Select your support category If you are not a U S customer select your country code at the bottom of the support dell com page or select All to see more choices 4 Select the appropriate service or support link based on your need 002. Removing and Installing Components This section provides detailed information on how to remove or install the components from your computer Recommended Tools The procedures in this document may require the following tools e Small flat blade screwdriver e Phillips screwdriver e Small plastic scribe Removing the Battery 1 Follow the procedures in Before Working Inside Your Computer 2 Slide the release latches to unlock the battery 3 Slide the battery and remove it from the computer Installing the Battery 1 Slide the battery into its slot until it clicks into place 2 Follow the procedures in After Working Inside Your Computer Removing the Secure Digital SD Card 1 Follow the procedures in Before Working Inside Your Computer 2 Press in onthe SD memory card to release it from the computer 3 Slide the memory card out of the computer Installing the Secure Digital SD Card 1 Push the memory card into the compartment until it clicks into place 2 Follow the procedures in After Working Inside Your Computer Removing the Hinge Cover 1 Follow the procedures in Before Working Inside Your Computer 2 Remove the battery 3 Remove the screw that secures the hinge cover 4 Flip the computer and remove the hinge cover Installing the Hinge Cover 1 Install the hinge cover and press on it to secure it to the computer 2 Flip the computer and install the screw that secure
3. a battery b hinge cover c keyboard d palmrest e display assembly f display bezel 3 Disconnect the camera cable from the camera module 4 Remove the screws that secure the display brackets and hinges 35 5 6 7 36 Release the wireless antennae from the right hinge Lift up the display panel and brackets from the display top cover 8 Remove the screws on the left and right display brackets Remove the display panel Installing the Display Panel 1 o N Oo a a N Align and place the left and right brackets to the display panel Tighten the screws and secure the brackets to their positions Insert and route the display cable and wireless antennae to the left and right hinges Attach the low voltage differential singnaling LVDS cable to the left hinge Align the display panel with its brackets to the top cover Align the WLAN antennae routing cable to its holder and connect the antennae to the WLAN card Install the screw that secures the display panel and the brackets Connect the camera cable to the camera module Install a display bezel b display assembly c palmrest d keyboard e hinge cover f battery Follow the procedures in After Working Inside Your Computer 37 Removing the Low Voltage Differential Signaling LVDS Cable 1 Follow the procedures in Before Working Inside Your Computer 2 Remove a b c d e f g h battery hin
4. b hinge cover c keyboard d palmrest 3 Disconnect the low voltage differential signaling LVDS cable from the system board 4 Disconnect the WLAN antennae and release it from the routing channel on the chassis 5 Remove the screws that secure the left and right hinges 30 Lift up the display assembly and remove it from the computer Installing the Display Assembly 7 om Pe LY gt Insert the display assembly hinges into their holders Install the screw that secure both the hinges in place Connect the LVDS cable to the system board Align the WLAN antennae routing cable to its holder and connect the antennae to the WLAN card Connect the USB board cable Install a palmrest b keyboard c hinge cover d battery Follow the procedures in After Working Inside Your Computer Removing the Power Connector Port and Bracket 1 2 Follow the procedures in Before Working Inside Your Computer Remove a battery b hinge cover c keyboard 31 d palmrest e display assembly 3 Disconnect the power connector cable from the system board 4 5 6 Lift up the power connector port from the computer and remove it 32 Installing the Power Connector Port and Bracket 1 D SO w Insert the power connector port and the bracket into its compartment Align the bracket and tighten the screw that secures the bracket and power connector Connect the power connector
5. feature Allows USB devices to wake up the computer from standby This feature is enabled only when the AC adapter is connected Change the SATA controller mode to either ATA or AHCI Enables or disables adapter warnings Specifies the behavior of the function key lt Fn gt Specifies if the computer battery will be charged when connected to an AC power source These fields let you enable or disable various on board devices Default Enabled Default Enabled Default Enabled Default Enabled Default Disabled Default AHCI Default Enabled Default Function key first Default Enabled This field displays your system s service tag If the service tag is not already set this field can be used to enter it Allows you to change or delete the administrator password Allows you to set a password on the computer s internal hard drive HDD Allows you to bypass the system password and the internal HDD password prompts during a system restart resume from hibernate state Enable or disable the Computrace feature on your computer 43 Boot Boot Priority Order Hard Disk Drives USB Storage Device CD DVD ROM Drives Network Exit Specifies the order of different devices in which the computer will boot through at start up Specifies which hard drive the computer can boot through Specifies which USB storage device the computer can boot through Specifies which CD DVD the
6. Masala anda ondacdaniencauths 35 Installing the Display Pane lice aoccceseatacatestan tects a e Gel he ioea aor de titvmata adh atmadania a aaan 37 Removing the Low Voltage Differential Signaling LVDS Cable cccsccsessssssessseecsesssessseeceeeseesssesssesesessensesess 38 Installing the Low Voltage Differential Signaling LVDS Cable ccc ccsssssssrssseesseesseesseeeseeseeeeseesseesseeesseeeeess 39 VSS e Da A nia 41 BOOS CO UEI GC Oca cices aciaapartentnsedvanmoseatuanseturocvasceauted N e e N 41 Navigation 21 pe eee nc 41 System o eup OD ONS eina a tonal a a N 42 Manna a a a a a a Antena Rt tae 42 Advanced oraa A E N N 43 SECU aa O a E A 43 0 6 pe te a ER ea gD a oe PO 44 E i EE E E ec EA AEE E E A AE nn aan Diets E EEE A E ng A EA A E 44 Ciel CIN TEN sa Sa acon densa cust ncn ET Sate ccndisa ees Gace cence nea oncaa aera enEaaTAE 44 System and o etU Pass WOU si sac hAtich tants sentmarauee aan chatactenguiuaian as tuadeanscusaan eines axeeseaamoeut hashacavesaseenveasianeoanae 44 Assigning a System Password and Setup PaSSWOIMKd ccssscsssesssesessessseeecseeeeseeeeseeeeseeseeseesseeeessetssseeseseteses 45 Deleting or Changing an Existing System and or Setup PaSSWOMU cccssccccssscecsssesesseeeesseeeesseeeessseesesneees 45 PUGO SUG S Biten tac es ticaet ce coc acnceate ce ten ating cee a testes criusbvucuswanedtaldeeavenasts 4 Enhanced Pre Boot System Assessment PSA DiaQnOstics cccscssscssrssssrsssreeser
7. cable to the system board Install a display assembly b palmrest c keyboard d hinge cover e battery Follow the procedures in After Working Inside Your Computer Removing the Display Bezel 4 Follow the procedures in Before Working Inside Your Computer Remove the battery Starting from the bottom pry the bezel inside out from the display assembly and work your way to the right and the left corners of the display bezel Remove the bezel from the display assembly once all the tabs have been loosened 33 Installing the Display Bezel Align the display bezel in line with the top cover Starting from the bottom edge press downward on the display bezel until it clicks into place Install the battery P ON o gt Follow the procedures in After Working Inside Your Computer Removing the Camera Follow the procedures in Before Working Inside Your Computer Remove the battery Remove the display bezel P O N D Disconnect the camera cable from the camera module 5 Pry the latch lift up the camera and remove it from the computer 34 Installing the Camera 1 Insert and align the camera module to its compartment Connect the camera cable to the camera module Install the display bezel Install the battery mo o Y Follow the procedures in After Working Inside Your Computer Removing the Display Panel 1 Follow the procedures in Before Working Inside Your Computer 2 Remove
8. operating Table 15 Physical Feature Vostro 2420 Height with a WLED panel Width Depth Weight minimum Vostro 2520 Height with a WLED panel Width Depth Weight minimum Table 16 Environmental Feature Temperature Operating Storage Relative humidity maximum Operating Storage Altitude maximum Operating Non operating Airborne contaminant level Specification 0 C to 40 C 32 F to 104 F 40 C to 70 C 40 F to 158 F Specification 31 50 mm to 34 70 mm 1 24 inches to 1 36 inches 342 00 mm 13 46 inches 244 mm 9 60 inches 2 2 kg 4 85 Ib 31 50 mm to 34 50 mm 1 24 inches to 1 35 inches 376 00 mm 14 80 inches 260 mm 10 23 inches 2 37 kg 5 22 Ib Specification 0 C to 35 C 32 F to 95 F 40 C to 65 C 40 F to 149 F 10 to 90 non condensing 5 to 95 non condensing 15 2 m to 3048 m 50 ft to 10 000 ft 15 2 m to 10 668 m 50 ft to 35 000 ft G1 as defined by ISA 71 04 1985 53 04 6 Contacting Dell K 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 Dell provides several online and telephone based support and service options Availability varies by country and product and some services may not be available in your area To contact Dell for sales technical support or customer service issues
9. your work surface is flat and clean to prevent the computer cover from being scratched Turn off your computer see Turning Off Your Computer If the computer is connected to a docking device docked such as the optional Media Base or Battery Slice undock it o CAUTION To disconnect a network cable first unplug the cable from your computer and then unplug the cable from the network device Disconnect all network cables from the computer Disconnect your computer and all attached devices from their electrical outlets 11 Close the display and turn the computer upside down on a flat work surface K NOTE To avoid damaging the system board you must remove the main battery before you service the computer Remove the main battery Turn the computer top side up Open the display Press the power button to ground the system board ran CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before opening the display AN CAUTION Before touching anything inside your computer ground yourself by touching an unpainted metal surface such as the metal at the back of the computer While you work periodically touch an unpainted metal surface to dissipate static electricity which could harm internal components Remove any installed ExpressCards or Smart Cards from the appropriate slots Turning Off Your Computer AN CAUTION To avoid losing data save and close all open files and exit a
10. 60 mm 14 00 inches 396 24 mm 15 60 inches 309 40 mm x 173 95 mm 344 23 mm x 193 54 mm 200 nits 220 nits 1366 x 768 pixels at 262K colors 0 closed to 140 60 Hz 40 40 15 30 H L 0 252 mm X 0 252 mm Specification e United States and Canada e 86 keys Europe and Brazil 87 keys e Japan 90 keys Specification 90 00 mm 3 54 inches 49 00 mm 1 93 inches 51 Table 13 Battery Feature Type Dimensions Height Width Depth Weight Charge time Voltage Temperature range Operating Non operating Coin cell battery Table 14 AC Adapter Feature Type Vostro 2420 Vostro 2520 with integrated video card Vostro 2420 with discrete video card Input voltage Input current maximum Input frequency Output power Output current 65 W 90 W Rated output voltage Dimensions Height Width Depth Temperature range 52 Specification 6 cell lithium ion 2 20 Whr 20 20 mm 0 80 inch 208 36 mm 8 20 inches 56 52 mm 2 22 inches 0 33 kg 0 73 Ib approximately 4 hours when the computer is turned off 11 1 VDC 0 C to 35 C 32 F to 95 F 40 C to 65 C 40 F to 149 F 3 V CR2032 lithium coin cell Specification 65 W 90 W 100 VAC to 240 VAC 1 50 A 1 60 A 1 70 A 2 50 A 50 Hz to 60 Hz 65 W and 90 W 3 34 A continuous 462A 19 50 VDC 1 0 VDC 28 20 mm 1 11 inches 57 90 mm 2 28 inches 137 16 mm 5 40 inches Feature Operating Non
11. Board 1 Insert and align the USB board into its compartment on the computer Install the screw that secures the USB board in place Connect the USB board cable to the system board gt w P Install a palmrest 22 b optical drive c keyboard d battery Follow the procedures in After Working Inside Your Computer Removing the Microphone 4 Follow the procedures in Before Working Inside Your Computer Remove a battery b keyboard c palmrest Disconnect the microphone cable from the system board Installing the Microphone 1 Insert and align the microphone into its compartment Connect the microphone cable to the system board Install a palmrest b keyboard c battery 23 4 Follow the procedures in After Working Inside Your Computer Removing the Heat Sink Fan Assembly 4 5 24 Follow the procedures in Before Working Inside Your Computer Remove a battery b keyboard c palmrest Disconnect the CPU fan cable from the system board Remove the captive screws that secure the heat sink fan assembly by following the sequence in the image Remove the heat sink fan assembly from the computer Installing the Heat Sink Fan Assembly gt o P Place and align the heat sink fan assembly Tighten the captive screws to secure the heat sink fan assembly Connect the CPU fan cable to the system board Install a palmrest b keyboard c battery Follow the
12. Cache Size L2 Cache Size L3 Cache Size Extended Memory System Memory Memory Speed Fixed HDD SATA ODD AC Adapter Type 42 Displays the computer model number Re sets the date on the computer s internal calendar Re sets the time on the computer s internal clock Displays the BIOS revision Displays the product name and the model number Displays the service tag of your computer Displays the asset tag of your computer if available Displays the type of processor Displays the speed of the processor Displays the processor ID Displays the processor L1 cache size Displays the processor L2 cache size Displays the processor L3 cache size Displays the memory installed on the computer Displays the memory in built on the computer Displays the memory speed Displays the model number and capacity of the hard drive Displays the model number and capacity of the optical drive Displays the type of the AC adapter Advanced Intel SpeedStep Virtualization Integrated NIC USB Emulation USB Wake Support SATA Operation Adapter Warnings Function Key Behavior Charger Behavior Miscellaneous Devices Security Set Service Tag Set Supervisor Password Set HDD Password Password Bypass Computrace Enable or disable the Intel SpeedStep feature Enable or disable the Intel Virtualization feature Enable or disable the power supply to the on board network card Enable or disable the USB emulation
13. Dell Vostro 2520 Owner s Manual ype P18F0032 Notes Cautions and Warnings K NOTE A NOTE indicates important information that helps you make better use of your computer o CAUTION A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem AN WARNING A WARNING indicates a potential for property damage personal injury or death 2012 Dell Inc Trademarks used in this text Dell the DELL logo Dell Precision Precision ON ExpressCharge Latitude Latitude ON OptiPlex Vostro and Wi Fi Catcher are trademarks of Dell Inc Intel Pentium Xeon Core Atom Centrino and Celeron are registered trademarks or trademarks of Intel Corporation in the U S and other countries AMD is a registered trademark and AMD Opteron AMD Phenom AMD Sempron AMD Athlon ATI Radeon and ATI FirePro are trademarks of Advanced Micro Devices Inc Microsoft Windows MS DOS Windows Vista the Windows Vista start button and Office Outlook are either trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries Blu ray Disc is a trademark owned by the Blu ray Disc Association BDA and licensed for use on discs and players The Bluetooth word mark is a registered trademark and owned by the Bluetooth SIG Inc and any use of such mark by Dell Inc is under license Wi Fi is a regist
14. Hinge Coveren a A E A N IRANA 11 FRE NTI OUT the Keyboarder a bres A tence de A a N 11 Iistalling he Keyooai eana E S 13 REMOVING the Opica DNE aei A 13 installing the Optical AY Saas ssc Seale ives onic cnt sa ices Aaa sulisannit ae beatae wade vasdeasy wih atcas a a a 14 Removing the WIE MTOR YIM CUI e i523 ial5s casted edi cehats fence dude causal Rascie cavchiv evchwenicutcaliesaeus Avent oii wa EE ne nseude Ee ateta 14 Mstaling the Memory Modulaire n a r aea A a Ea SaS a 15 Removing tHe P almreS konsuman a rE a N NS 15 Mstaling the Palmire Stiena O 16 REMOVING heP ower piton Boards ee a a a a a a a A 17 mstalmg the FPOwWer Buton Boares A a vuasa aaiail oo ameanes maanaionaantanaaanins 18 Removing the Hard Drive c cccccsscsssssssssescseecseecsessescseecoeeesesseescsescoeesgeaseescsescoessoesseesceusceeseoessgesesusseusesessnsseaseeess 18 Hstaling the Hard Diivevceene a E a a a a 19 Removing the Wireless Local Area Network WLAN Card c ccccssssccsssessessseeecseeesseeseseteeseessseeseateeseeaeseesesaees 19 Installing the Wireless Local Area Network WLAN Card cccccccesscssessssessescseesseeesseesseesseeeseeseseessaesseeseseeseneens 20 REMOVING the COINS C El Bate Nesa a a a 20 installing the Corn Cell Baten aa a A cates tate 21 REMOVING the USB BOard aone a E A a a E A a 21 stalina the SB Board srra aa E N AA 22 Removing he Microphone mavae a a A a thancataausataneaveuces 23 Installing the MicroPhOne ccccscssscsecsee
15. computer can boot through Specifies which network device the computer can boot through This section allows you to save discard and load default settings before exiting from System Setup Updating the BIOS It is recommended to update your BIOS system setup on replacing the system board or if an update is available For notebooks ensure that your computer battery is fully charged and connected to a power outlet 1 Restart the computer Go to support dell com support downloads If you have your computer s Service Tag or Express Service Code K NOTE For desktops the service tag label is available on the front of your computer K NOTE For notebooks the service tag label is available on the bottom of your computer a Enter the Service Tag or Express Service Code and click Submit b Click Submit and proceed to step 5 If you do not have your computer s service tag or express service code select one of the following a Automatically detect my Service Tag for me b Choose from My Products and Services List c Choose from a list of all Dell products On the application and drivers screen under the Operating System drop down list select BIOS Identify the latest BIOS file and click Download File Select your preferred download method in the Please select your download method below window click Download Now The File Download window appears Click Save to save the file on your computer Click Run to install the up
16. cssesseeseessesssesceesseesseusseesseuseesseescoesceeesaesseesseesseeesesegesserssenssenssenseasseaseeeees 23 REMOVING theHeat Smk Fan Assembly cas ccscesdsacsedeisacsdesescsrsenacapsatetiesad asec steed derneadieiwiabascxsosts eetadeneebacane 24 Installing the Heat SINK Fan Assemb oniinn a N sacs soca NA 25 ALAE UNG UIE FOCCS SON E E E E E A E E E E E E EE E 25 Msta ling the PRO CES SO nonna a A 26 Removing the System B ard zeroa E A a 26 iMstalling the System B Oa sorn A a 27 R moving UES 0 COKOT S connstian a a eteantes 28 installing Meo peake Soenna E e a E 29 Removing the Display ASSEMDI ccccsccscessssssesssessesseeesseeseeesesseecsauceeucoeecoeeeoesseesseesseusseesceeesaeeeeeseessauseaseaseeess 30 installing the DIS OAV Assemb rinnan N E E E A 31 Removing the Power Connector Port and Bracket csccccssssesessseessssteeeesseeeeesseeeeesseeesessueessssnseessseeeesesseeeeessaes 31 Installing the Power Connector Port and Bracket ccccccsccsssccssssecsesesesceeessescsescseesseeeseusseessescessseessaeeseeaseass 33 REMOVING the Display BOOZE scica ties sett icine a aa a E cw essutctnaeaaters wasaawsadeanadninudsabeiaccanvecammmuntle 33 Installing the Display Be Zel ccccccccssssssssecssssssessescseecoesceeeceeeseeeseessesssesseeseesensseuseesseeeseeesaeecaneseeeseteseesessensseneas 34 Removing the Came aueren a a a A 34 Hstaling the Cameraria a a RE tse 35 REMOWING ANE Display Panel ensare a e E teins dedaut as
17. dated BIOS settings on your computer Follow the instructions on the screen System and Setup Password You can create a system password and a setup password to secure your computer 44 Password Type Description System password Password that you must enter to log on to your system Setup password Password that you must enter to access and make changes to the BIOS settings of your computer AN CAUTION The password features provide a basic level of security for the data on your computer AN CAUTION Anyone can access the data stored on your computer if is not locked and left unattended K NOTE Your computer is shipped with the system and setup password feature disabled Assigning a System Password and Setup Password You can assign a new System Password and or Setup Password or change an existing System Password and or Setup Password only when Password Status is Unlocked If the Password Status is Locked you cannot change the System Password K NOTE If the password jumper is disabled the existing System Password and Setup Password is deleted and you need not provide the system password to log on to the computer To enter a system setup press lt F2 gt immediately after a power on or reboot 1 In the System BIOS or System Setup screen select System Security and press lt Enter gt The System Security screen appears 2 Inthe System Security screen verify that Password Status is Unlocked 3 Select System Password ent
18. e 4 RAM Read Write failure Memory failure 5 Real time clock power fail CMOS battery failure 6 Video BIOS test failure Video card failure 7 Processor failure Processor failure 8 Display Display failure 48 9 Technical Specifications NOTE Offerings may vary by region For more information regarding the configuration of your computer click Start Start icon Help and Support and then select the option to view information about your computer Table 2 System Information Feature Chipset DRAM bus width Flash EPROM Table 3 Processor Feature Types L2 cache Table 4 Memory Feature Memory connector Memory capacity Memory type Minimum memory Maximum memory Table 5 Audio Feature Type Controller Stereo conversion Interface Internal Specification Intel HM75 Express chipset 64 bit SPI 32 Mbits Specification e Intel Celeron e Intel Core i3 series e Intel Core i5 series up to 6 MB Specification two SODIMM slots 2 GB or 4 GB DDR3 SDRAM 1333 MHz and 1600 MHz 1 GB 8 GB Specification 2 1 channel high definition audio Cirrus Logic CS4213D 24 bit analog to digital and digital to analog high definition audio 49 Feature External Speakers Volume controls Table 6 Video Feature Video type Data bus UMA Discrete Video controller UMA Discrete Vostro 2420 Table 7 Camera Feature Camera resolution Video resolutio
19. er your system password and press lt Enter gt or lt Tab gt Use the following guidelines to assign the system password A password can have up to 32 characters The password can contain the numbers 0 through 9 Only lower case letters are valid upper case letters are not allowed Only the following special characters are allowed space G D WY 1 C Re enter the system password when prompted 4 Type the system password that you entered earlier and click OK 5 Select Setup Password type your system password and press lt Enter gt or lt Tab gt A message prompts you to re type the setup password 6 Type the setup password that you entered earlier and click OK 7 Press lt Esc gt and a message prompts you to save the changes 8 Press lt Y gt to save the changes The computer reboots Deleting or Changing an Existing System and or Setup Password Ensure that the Password Status is Unlocked in the System Setup before attempting to delete or change the existing System and or Setup password You cannot delete or change an existing System or Setup password if the Password Status is Locked To enter the System Setup press lt F2 gt immediately after a power on or reboot 45 46 In the System BIOS or System Setup screen select System Security and press lt Enter gt The System Security screen is displayed In the System Security screen verify that Password Statu
20. ered trademark of Wireless Ethernet Compatibility Alliance Inc 2012 07 Rev A00 Contents Notes Cautions and WarningS ccccscsssesscssssersssrssseesssessesaesesaesesaesesaesevaesevaesevaeseraesenaeeenas 2 1 Working on Your COmputer cccccsesssessssssesssssssesseeesesesaesesersesesaesesevaesesaesesevaesesensesenaesesanas 5 Before Working Inside Your COMpPUTEL ccss cccessseeessseeeesseeeeesseeeesseeeecssteeecseeesssnsenessnsesessesessseeeeesseaesesasesessaeess 5 Tmn OM YOUR COMM ULE asscsscvasntanwosuts vexadnaaracuxcobcunsussacuantea ues daa vaewaneiaaSocensnusveieansennstoaveatuanteteniedidanueleeiemnmancmanian 6 Aker Workmoinside Your Computer sacarana a Aa A a a 6 2 Removing and Installing COMPONENKGS cseeseessseessesssssseseseseesesesassecenseserassetarsesereseraeses 9 Recommended LOOMS reaper aS N ia Aaa 9 Removing the Bater yesi a a a a a a A 9 Installing the Battery ccccccccssscsssssseessescseessescseesseesseeeseesseesceesssusceuseseescaeeseesceuseseassausseeseusceesseuscusesenseeneseesseass 10 REMOVING INE SE CUPEAD IG MGI SD Cafi decried chasscescet udactscucivscadsveiaasdyacsbsaceusontuacs Vesnicesadissaeatuaestendiaadalvacsiananaseteunstie 10 stalling the Secure Digital oD Cardiac cho asec nna a tate RA aa aN 10 Removing the Hinge Covel cccccscssscscssscssssseessesceecseecseseseesseeessesesuseseesseeecaeaeusceuseanseateseuseoneseesseuteseeseeneseesseess 10 iStalliig The
21. ge cover keyboard optical drive palmrest display assembly display bezel display panel 3 Peel off the tape securing the LVDS cable connection 4 Disconnect the LVDS cable from the display panel 5 Peel off the display cable from the adhesive affixing it to the display panel 38 Installing the Low Voltage Differential Signaling LVDS Cable 1 Attach the display cable to the display panel 2 Connect the display cable connector to the display panel and affix the tape to secure it 3 Install a display panel b display bezel c display assembly d palmrest e optical drive f keyboard g hinge cover h battery 4 Follow the procedures in After Working Inside Your Computer 40 3 System Setup System Setup enables you to manage your computer hardware and specify BIOS level options From the System Setup you can e Change the NVRAM settings after you add or remove hardware e View the system hardware configuration e Enable or disable integrated devices e Set performance and power management thresholds e Manage your computer security 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 e Access System Setup by pressing lt F2 gt key e Bring up the one time boot menu by pressing lt F12 gt key The one t
22. ime boot menu displays the devices that you can boot from including the diagnostic option The boot menu options are e Removable Drive if available e STXXXX Drive K NOTE XXX denotes the SATA drive number e Optical Drive e Diagnostics K NOTE Choosing Diagnostics will display the ePSA diagnostics screen The boot sequence screen also displays the option to access the System Setup screen Navigation Keys The following table displays the system setup navigation keys NOTE For most of the system setup options changes that you make are recorded but do not take effect until you restart the system Table 1 Navigation Keys Keys Navigation Up arrow Moves to the previous field Down arrow Moves to the next field 41 Keys lt Enter gt Spacebar lt Tab gt lt Esc gt lt F1 gt Navigation Allows you to select a value in the selected field if applicable or follow the link in the field Expands or collapses a drop down list if applicable Moves to the next focus area K NOTE For the standard graphics browser only Moves to the previous page till you view the main screen Pressing lt Esc gt in the main screen displays a message that prompts you to save any unsaved changes and restarts the system Displays the System Setup help file System Setup Options Main System Information System Date System Time BIOS Version Product Name Service Tag Asset Tag CPU Type CPU Speed CPU ID L1
23. ll open programs before you turn off your computer Shut down the operating system In Windows 7 Click starr then click Shut Down In Windows Vista Click Start then click the arrow in the lower right corner of the Start menu as shown below and then click Shut Down In Windows XP Click Start Turn Off Computer Turn Off The computer turns off after the operating system shutdown process is complete Ensure that the computer and all attached devices are turned off If your computer and attached devices did not automatically turn off when you shut down your operating system press and hold the power button for about 6 seconds to turn them off After Working Inside Your Computer After you complete any replacement procedure ensure you connect any external devices cards and cables before turning on your computer CAUTION To avoid damage to the computer use only the battery designed for this particular Dell computer Do not use batteries designed for other Dell computers Connect any external devices such as a port replicator battery slice or media base and replace any cards such as an ExpressCard Connect any telephone or network cables to your computer ia CAUTION To connect a network cable first plug the cable into the network device and then plug it into the computer Replace the battery Connect your computer and all attached devices to their electrical outlets Turn on your computer
24. move a battery b keyboard c palmrest 3 Peel the power button board cable from the adhesive affixing it to the palmrest 4 Flip the palmrest and remove the screw that secures the power button board to the palmrest 5 Lift up the power button board and release the power button board cable through the opening 17 Installing the Power Button Board 6 aS N gt Insert the power button board cable through the opening Fix the power button board to its compartment Tighten the screw to secure the power button board Flip the computer and attach the power button board cable to the palmrest Install a palmrest b keyboard c battery Follow the procedures in After Working Inside Your Computer Removing the Hard Drive 1 2 4 Follow the procedures in Before Working Inside Your Computer Remove a battery b keyboard c palmrest Remove the screws that secure the hard drive bracket Slide and lift the hard drive and lift it out of the computer Installing the Hard Drive ww P Install the hard drive bracket to the hard drive Tighten the screws that secure the hard drive bracket Place the hard drive in its compartment and slide it towards the SATA connector to secure itto the system board Install a palmrest b keyboard c battery Follow the procedures in After Working Inside Your Computer Removing the Wireless Local Area Network WLAN Card 4 Follow
25. mporary battery failure with AC adapter present e Constantly blinking amber light Fatal battery failure with AC adapter present 47 e Light off Battery in full charge mode with AC adapter present e White light on Battery in charge mode with AC adapter present Device Status Lights Turns on when you turn on the computer and blinks when the computer is in a power management mode 9 Turns on when the computer reads or writes data Turns on steadily or blinks to indicate battery charge status P Turns on when wireless networking is enabled Diagnostic Beep Codes The computer may emit a series of beeps during start up if the display cannot show errors or problems These series of beeps called beep codes identify various problems The delay between each beep Is 300 ms the delay between each set of beeps is 3 seconds and the beep sound lasts 300 ms After each beep and each set of beeps the BIOS should detect if the user presses the power button If so BIOS will jump out from looping and execute the normal shutdown process and power system Code Cause and Troubleshooting Steps 1 BIOS ROM checksum in progress or failure System board failure covers BIOS corruption or ROM error 2 No RAM detected No memory detected 3 Chipset Error North and South Bridge Chipset DMA IMR Timer Error Time Of Day Clock test failure Gate A20 failure Super I O chip failure Keyboard controller test failure System board failur
26. n maximum Table 8 Communications Feature Network adapter Wireless Table 9 Ports and Connectors Feature Audio Video 50 Specification microphone in stereo headphones external speakers connector 2 x 2 Watt keyboard function keys and program menus Specification e integrated on system board e discrete integrated video PCI E x16 Gen1 PCI E x16 Gen2 e Intel HD Graphics e Intel HD Graphics 3000 e Intel HD Graphics 4000 nVidia GeForce GT 620M Specification 1 3 Mega pixel 640 x 480 at 30 FPS Specification 10 100 1000 Mbps Ethernet LAN internal wireless local area network WLAN Specification One microphone connector one stereo headphone speakers connector e one 15 pin VGA connector e one 19 pin HDMI connector Feature Network adapter USB Media card reader Table 10 Display Feature Type Size Dimensions Height Width Diagonal Active area X Y Maximum brightness Maximum resolution Operating angle Refresh rate Minimum viewing angles Horizontal Vertical Pixel pitch Table 11 Keyboard Feature Number of keys Table 12 Touchpad Feature Active Area X axis Y axis Specification one RJ 45 connector three 4 pin USB 2 0 compliant connectors one 3 in 1 SD MMC MS Vostro 2420 Vostro 2520 HD WLED TrueLife HD WLED AG 14 0 inches 15 0 inches 192 50 mm 7 58 inches 193 50 mm 7 62 inches 324 00 mm 12 76 inches 344 20 mm 13 55 inches 355
27. nly be done by a certified service technician You should only perform troubleshooting and simple repairs as authorized in your product documentation or as directed by the online or telephone service and support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Read and follow the safety instructions that came with the product CAUTION To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface such as a connector on the back of the computer CAUTION Handle components and cards with care Do not touch the components or contacts on a card Hold a card by its edges or by its metal mounting bracket Hold a component such as a processor by its edges not by its pins CAUTION When you disconnect a cable pull on its connector or on its pull tab not on the cable itself Some cables have connectors with locking tabs if you are disconnecting this type of cable press in on the locking tabs before you disconnect the cable As you pull connectors apart keep them evenly aligned to avoid bending any connector pins Also before you connect a cable ensure that both connectors are correctly oriented and aligned NOTE The color of your computer and certain components may appear differently than shown in this document To avoid damaging your computer perform the following steps before you begin working inside the computer Ensure that
28. procedures in After Working Inside Your Computer Removing the Processor 4 Follow the procedures in Before Working Inside Your Computer Remove a battery b keyboard c palmrest d heat sink fan assembly Rotate the processor cam screw in a counter clockwise direction Lift up the processor and remove it from the computer 25 Installing the Processor 1 4 Insert the processor into the processor socket Ensure the processor Is properly seated Tighten the cam screw in a clockwise direction to the locked position Install a heat sink fan assembly b palmrest c keyboard d battery Follow the procedures in After Working Inside Your Computer Removing the System Board 1 2 26 Follow the procedures in Before Working Inside Your Computer Remove a battery b SD memory card c keyboard d optical drive e memory module f palmrest g hard drive h WLAN card i heat sink fan assembly Disconnect the display cable 1 power connector cable 2 USB board cable 3 speaker cable 4 4 Remove the screws that secure the system board 5 Lift up the system board at an angle and slide it out from the LAN VGA HDMI and USB sockets Installing the System Board 1 Insert the system board with the LAN VGA HDMI and USB connectors into their respective sockets and align the system board in place Install the screw that secure the system board in place Connec
29. ptions to provide extra information about the failed device s e View status messages that inform you if tests are completed successfully e View error messages that inform you of problems encountered during testing AN CAUTION Use the system diagnostics to test only your computer Using this program with other computers may a F cause invalid results or error messages NOTE Some tests for specific devices require user interaction Always ensure that you are present at the computer terminal when the diagnostic tests are performed Power on the computer As the computer boots press the lt F12 gt key as the Dell logo appears On the boot menu screen select the Diagnostics option The Enhanced Pre boot System Assessment window is displayed listing all devices detected in the computer The diagnostics starts running the tests on all the detected devices If you wish to run a diagnostic test on a specific device press lt Esc gt and click Yes to stop the diagnostic test Select the device from the left pane and click Run Tests If there are any issues error codes are displayed Note the error code and contact Dell Battery Status Lights If the computer is connected to an electrical outlet the battery light operates as follows e Alternately blinking amber light and white light An unauthenticated or unsupported non Dell AC adapter is attached to your laptop e Alternately blinking amber light with steady white light Te
30. s is Unlocked Select System Password alter or delete the existing system password and press lt Enter gt or lt Tab gt Select Setup Password alter or delete the existing setup password and press lt Enter gt or lt Tab gt 4 NOTE If you change the System and or Setup password re enter the new password when promoted If you delete the System and or Setup password confirm the deletion when promoted Press lt Esc gt and a message prompts you to save the changes Press lt Y gt to save the changes and exit from the System Setup The computer reboots Diagnostics If you experience a problem with your computer run the ePSA diagnostics before contacting Dell for technical assistance The purpose of running diagnostics is to test your computer s hardware without requiring additional equipment or risking data loss If you are unable to fix the problem yourself service and support personnel can use the diagnostics results to help you solve the problem Enhanced Pre Boot System Assessment ePSA Diagnostics The ePSA diagnostics also known as system diagnostics performs a complete check of your hardware The ePSA is embedded with the BIOS and is launched by the BIOS internally The embedded system diagnostics provides a set of options for particular devices or device groups allowing you to e Run tests automatically or in an interactive mode e Repeat tests e Display or save test results e Run thorough tests to introduce additional test o
31. s the hinge cover 3 Install the battery 4 Follow the procedures in After Working Inside Your Computer Removing the Keyboard 1 Follow the procedures in Before Working Inside Your Computer 2 Remove the battery 3 Pry up to release the tabs securing the keyboard to the computer 4 Flip the keyboard and lay it on the palmrest 5 Disconnect the keyboard cable from the system board 6 Remove the keyboard from the computer 12 Installing the Keyboard Connect the keyboard cable to the system board Press down on the keyboard until it clicks into place Install the battery a oe UN gt Follow the procedures in After Working Inside Your Computer Removing the Optical Drive Follow the procedures in Before Working Inside Your Computer Remove the battery Remove the keyboard a 0o Pon Remove the screw that secures the optical drive 5 Slide the optical drive out of the computer Insert the keyboard at an angle of 30 degrees to Its compartment Installing the Optical Drive Slide the optical drive into the compartment on the left side of the chassis Tighten the screw to secure the optical drive to the computer Install the keyboard Install the battery oo FP wns gt Follow the procedures in After Working Inside Your Computer Removing the Memory Module Follow the procedures in Before Working Inside Your Computer Remove the battery Remove the keyboard R o N n Pr
32. ssseesseeeeseeseseeeseeesseeeeseeesnees 41 Bater otas Igilisi a dusiciesidettatesa Ceanrectaantannap lan telcos tah aacu sd nateaaudted ance laeutasbatnaanannaecueteanle 41 Device status LE GIES ese ascetic acetate a T A N 48 Diagnostic Beep COE Sires cia cre cevccausnanasers taluse Dowsdusivox snus asides loudeetansusvadvaes dev esau tesaaiaensdutecsbesletel esta vdesvsaicedai ectsdcnmecsiosn evden 48 5 Technical Specifications saren bai baci Seeds tec chu pad edes tededadubnsaeedtouactanseite 49 6 Contacting DOU sass cccesceaacte cs sets teres asca cates adts ea tei cecauesdvatag teeta atresia en aati sat 55 Working on Your Computer Before Working Inside Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your personal safety Unless otherwise noted each procedure included in this document assumes that the following cond A A gt gt itions exist You have performed the steps in Working on Your Computer You have read the safety information that shipped with your computer A component can be replaced or if purchased separately installed by performing the removal procedure in reverse order WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance CAUTION Many repairs may o
33. t the LCD cable power connector cable USB board cable audio board cable coin cell battery cable and the speaker cable 4 Install 27 a processor b heat sink fan assembly c WLAN card d hard drive e palmrest f memory module g optical drive h keyboard i SD memory card j battery 5 Follow the procedures in After Working Inside Your Computer Removing the Speakers 1 Follow the procedures in Before Working Inside Your Computer 2 Remove a battery b SD memory card c keyboard d optical drive e memory module f palmrest g hard drive h WLAN card i heat sink fan assembly j system board 3 Release the speaker cable from the routing channel 4 Press the securing latches and lift up the left speaker 28 5 Press the securing latches and lift up the right speaker 6 Remove the speaker assembly and the speaker cable from the computer Installing the Speakers 1 Insert and attach the left and right speakers into their respective compartments 2 Align and route the speaker cable to the chassis Install a system board b processor c heat sink fan assembly 29 d WLAN card e hard drive f palmrest g memory module h optical drive i keyboard j SD memory card k battery 4 Follow the procedures in After Working Inside Your Computer Removing the Display Assembly 1 Follow the procedures in Before Working Inside Your Computer 2 Remove a battery
34. the procedures in Before Working Inside Your Computer Remove a battery b keyboard c palmrest Disconnect the antennae acouected to the a card i Pry the latch to release the WLAN card from its compartment 19 5 Installing the Wireless Local Area Network WLAN Card o oO P D Slide the WLAN card into its slot Clip on the WLAN card to the latch to secure itin place Connect the antennae according to the color code on the WLAN card Install a palmrest b keyboard c battery Follow the procedures in After Working Inside Your Computer Removing the Coin Cell Battery 1 2 20 Follow the procedures in Before Working Inside Your Computer Remove a battery b keyboard c palmrest Disconnect the coin cell battery cable from the system board Fuere ae HiS sr aa ANE 4 Remove the coin cell battery from the computer Installing the Coin Cell Battery 1 Install the coin cell battery in the coin cell battery compartment 2 Connectthe coin cell battery cable to the system board 3 Install a palmrest b keyboard c battery 4 Follow the procedures in After Working Inside Your Computer Removing the USB Board 1 Follow the procedures in Before Working Inside Your Computer 2 Remove a battery b keyboard c optical drive d palmrest 3 Disconnect the USB board cable from the system board 21 4 5 Installing the USB
35. y the retention clips away from the memory module until it pops up 5 Remove the memory module from the computer Installing the Memory Module Insert the memory module into the memory socket Press down on the memory module until the retention clips secure the memory module in place Install the keyboard Install the battery ae O P a Follow the procedures in After Working Inside Your Computer Removing the Palmrest Follow the procedures in Before Working Inside Your Computer Remove the battery Remove the keyboard PUND Remove the screws that secure the bottom base 5 Flip the computer and disconnect the power board cable 1 and the touchpad cable 2 6 Remove the screws that secure the palmrest to the computer 7 Starting from the left pry up the palmrest and remove it from the computer Installing the Palmrest 1 Insert the palmrest towards the display screen at a 30 degree angle Align and adjust the palmrest into position before pressing it down Connect the power board cable and touchpad cable to their respective connectors Tighten the screws that secure the palmrest to the computer a e o N Flip the computer and install the screws that secure the bottom base 6 Install the keyboard 7 Install the battery 8 Follow the procedures in After Working Inside Your Computer Removing the Power Button Board 1 Follow the procedures in Before Working Inside Your Computer 2 Re
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