Dell Laptop D620 User's Manual
Contents
1. Back to Contents Page Dell Latitude D620 Service Manual K NOTE A NOTE indicates important information that helps you make better use of your computer NOTICE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem _ CAUTION A CAUTION indicates a potential for property damage personal injury or death Information in this document is subject to change without notice 2006 Dell Inc All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Inc is strictly forbidden Trademarks used in this text Dell the DELL logo and Latitude are trademarks of Dell Inc Microsoft and Windows are registered trademarks of Microsoft Corporation Bluetooth is a registered trademark owned by Bluetooth SIG Inc and is used by Dell under license Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Inc disclaims any proprietary interest in trademarks and trade names other than its own November 2006 Rev A01 Back to Contents Page2. Keyboard Dell Latitude D620 Service Manual Removing the Keyboard Replacing the Keyboard Removing the Keyboard A CAUTION Before working inside your Dell computer follow the safety instructions in your Product Information Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the three screws at the top of the keyboard NOTICE The keycaps on the keyboard are fragile easily dislodged and time consuming to replace Be careful when removing and handling the keyboard 4 Lift the keyboard and rotate it slightly forward to allow access to the keyboard connector on the system board 5 Disconnect the keyboard cable connector from the system board Replacing the Keyboard NOTICE To avoid scratching the palm rest when replacing the keyboard hook the tabs along the front edge of the keyboard into the palm rest and then secure the keyboard in place 1 To replace the keyboard connect the keyboard connector to the system board 2 Place the tabs along the front edge of the keyboard into the palm rest and lay the keyboard down on the palm rest 3 Replace the three screws at the top of the keyboard 4 Replace the h
3. Page Back to Contents Page Before You Begin Dell Latitude D620 Service Manual Recommended Tools Turning Off Your Computer Before Working Inside Your Computer Computer Orientation Screw Identification This chapter provides procedures for removing and installing the components in your computer Unless otherwise noted each procedure assumes that the following conditions exist You have performed the steps in Turning Off Your Computer and Before Working Inside Your Computer You have read the safety information in the Product Information Guide A component can be replaced by performing the removal procedure in reverse order Recommended Tools The procedures in this document may require the following tools Small flat blade screwdriver 1 Phillips screwdriver Small plastic scribe 5 mm hex nut driver Flash BIOS update program CD Turning Off Your Computer NOTICE To avoid losing data save and close any open files and exit any open programs before you turn off your computer Shut down the operating system a Save and close any open files and exit any open programs b Click Start gt Shut Down Shut down The computer turns off after the operating system shutdown process finishes Ensure that the computer and any attached devices are turned off If your computer and attached devices do not automatically turn off when you shut down your operating system press and hold the power button for 4
4. consecutive order the four captive screws labeled 1 through 4 on the assembly 8 Lift the assembly out of the computer Replacing the Processor Thermal Cooling Assembly A CAUTION Before performing the following procedures follow the safety instructions in the Product I nformation Guide a NOTE To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Remove the processor thermal cooling assembly see Processor Thermal Cooling Assembly K NOTE The original pad can be reused if the original processor and heat sink are reinstalled together If either the processor or heat sink is replaced use the thermal pad provided in the kit to ensure that thermal conductivity is achieved 2 Peel the backing off the thermal cooling pad and adhere the pad to the portion of the thermal cooling assembly that covers the processor 3 Place the assembly on the system board 4 Tighten in consecutive order the four captive screws labeled 1 through 4 on the thermal cooling assembly 5 Replace the palm rest see Palm Rest 6 Replace the coin cell battery see Coin Cell Battery 7 Replace the keyboard see Keyboard 8 Replace the optical drive see Media Bay Devices 9 Replace the hinge cover see Hinge Cover 10 Replace the battery Back to Contents Page
5. located in the bottom edge of the top cover 3 Replace the display bezel Removing the Display Hinges A CAUTION Before performing the following procedures follow the safety instructions in the Product I nformation Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the display assembly see Display Assembly 3 Remove the display bezel see Removing the Display Bezel 4 Remove the display Panel see Removing the Display Panel 5 Remove the M2 5 x 5 mm screw from the right display hinge 6 Lift the right display hinge off the two alignment pins and out of the top cover 7 Repeat step 5 and step 6 for the left display hinge M2 5 x 5 mm screw right display hinge alignment pins 2 4 topcover EE d Back to Contents Page Back to Contents Page Fan Dell Latitude D620 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product I nformation Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instr
6. mm Back to Contents Page NOTE This screw is optional and might not be installed on Display Hinges to Top Cover M2 5 x 8 mm M3 x 3mm Fan Module 4 each pd HH M2 5 x 5mm Display Bezel 6 each Base Plastics to Palm Rest From Bottom 7 each Cha System Board to Base Plastics 5 each system board Display Assembly to Computer Base 4 each I m M2 5 x 8 mm Display Panel 8 each j H M2 x 3mm Hard Drive Carrier to Hard Drive 2 each Keyboard to Palm Rest 3 each H M2 5 x mm Back to Contents Page Flashing the BIOS Dell Latitude D620 Service Manual Flashing the BIOS From a CD Flashing the BIOS From the Hard Drive If a BLOS update program CD is provided with the new system board flash the BIOS from the CD If you do not have a BIOS update program CD flash the BIOS from the hard drive Flashing the BIOS From a CD 1 Ensure that the AC adapter is plugged in and that the main battery is installed properly K NOTE If you use a BIOS update program CD to flash the BIOS set up the computer to boot from a CD before inserting the CD 2 Insert the BIOS update program CD and restart the computer Follow the instructions that appear on the screen The computer continues to boot and updates the new BIOS When the flash update is complete the computer will automatically reboot 3 Press lt F2 gt during POST t
7. Dell Latitude D620 Service Manual Before You Begin Palm Rest System Components Modem Media Bay Devices Processor Thermal Cooling Assembly Hard Drive Processor Module Hinge Cover Speaker Keyboard Microphone Memory PC Card Reader Display Assembly System Board Internal Card with Bluetooth Wireless Technology Fan_ Communications Cards Base Coin Cell Battery Flashing the BIOS Model PP18L Notes Notices and Cautions K NOTE A NOTE indicates important information that helps you make better use of your computer NOTI CE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem _ CAUTION A CAUTION indicates a potential for property damage personal injury or death Information in this document is subject to change without notice 2006 Dell Inc All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Inc is strictly forbidden Trademarks used in this text Dell the DELL logo and Latitude are trademarks of Dell Inc Microsoft and Windows are registered trademarks of Microsoft Corporation Bluetooth is a registered trademark owned by Bluetooth SIG Inc and is used by Dell under license Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Inc disclaims any proprietary interest in trademarks and trade names other than its own No
8. Page Hinge Cover Dell Latitude D620 Service Manual CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide NOTICE 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 NOTICE The hinge cover is fragile and can be damaged if extreme force is used Be careful when removing the hinge cover Op i Follow the procedures in Before You Begin 2 Turn the computer top side up and then open the display all the way 180 degrees so that the display rests on your work surface NOTICE To avoid damaging the hinge cover do not lift the cover on both sides simultaneously Removing the hinge cover in a different way than described may cause the plastic to break 1 hinge cover 2 plastic scribe 3 indent 3 Starting on the right side of the computer use a plastic scribe to pry up the hinge cover Lift the cover away from the computer going from the right toward the left and lay the cover aside Before installing the hinge cover ensure that all cables are routed correctly Improper routing of the cables can cause damage to the cables 4 To replace the hinge cover insert the left edge of the cover into place 5 Press from left to right until the cover snaps into place Back to Contents Page Back to Contents Page
9. The system board s BIOS chip contains the Service Tag which is also visible on a barcode label on the bottom of the computer The replacement kit for the system board includes a CD that provides a utility for transferring the Service Tag to the replacement system board 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 4 Remove the display assembly see Display Assembly 5 Remove the hard drive see Hard Drive 6 Remove the optical drive see Media Bay Devices 7 Remove the memory module see Memory 8 Remove and installed wireless communications cards see Communications Cards 9 Remove the palm rest see Palm Rest 10 Remove the modem see Modem 11 Remove the speaker see Speaker 12 Remove the PC Card reader see PC Card Reader 13 Remove the processor thermal cooling assembly see Processor Thermal Cooling Assembly 14 Remove the processor see Processor Module 15 Remove the microphone see Microphone 16 Disconnect the fan cable from the system board 17 Disconnect the cables near the WLAN card and the modem connector from the system board 18 Remove the three M2 5 x 5 mm system board screws from the bottom of the computer o fa fvasxsimmscrews 5 S o 19 Remove the four 5 mm hex screws on the back of the computer 20 Lift the system board out and away from the base plastics I nstalling the Syste
10. aker 12 hard drive 13 coin cell battery 14 modem 15 processor 16 internal card with Bluetooth wireless technology 17 processor thermal cooling assembly 18 Mobile Broadband card 19 WLAN card 20 display feed flex cable 21 22 display hinge Back to Contents Page Back to Contents Page Processor Thermal Cooling Assembly Dell Latitude D620 Service Manual Removing the Processor Thermal Cooling Assembly Replacing the Processor Thermal Cooling Assembly Removing the Processor Thermal Cooling Assembly A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the optical drive see Media Bay Devices 4 Remove the keyboard see Keyboard 5 Remove the coin cell battery see Coin Cell Battery 6 Remove the palm rest see Palm Rest 1 processor thermal cooling assembly 2 captive screws 4 K NOTE The processor thermal cooling assembly may differ in appearance depending on your computer configuration However the removal procedure is the same for all assemblies 7 Loosen in
11. and Card Subscriber Identity Module SIM Card Wireless Local Area Network WLAN Card If you ordered a WLAN card with your computer the card is already installed A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide 1 Follow the procedures in Before You Begin 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard ae F aros Lvi TT HAL AMAA fee nae E iX 1 WLAN card 2 antenna cables 2 NOTICE To prevent damage to the connector do not use tools to spread the securing clips 4 Ifa WLAN card is not already installed go to step 5 If you are replacing a WLAN card remove the existing card a Disconnect the WLAN card from any attached cables b Use your fingertips to carefully spread apart the metal securing tabs until the card pops up slightly c Slide and lift the WLAN card out of its connector WLAN card metal securing tabs 2 NOTICE The connectors are keyed to ensure correct insertion If you feel resistance check the connectors and realign the card K NOTE Do not insert a Mobile Broadband card into the WLAN card slot 5 To install a WLAN card a Move any antenna cables out of the way to make space for the WLAN card b Align the WLAN card with the connector at a 45 degree angle and press the card into the connector until you feel a click 1 WLAN card antenna cable
12. ay Assembly 3 Use a plastic scribe to pry the six circular screw covers bumpers out of the screw holes on the front of the bezel 4 Remove the six M2 5 x 5 mm screws from the front of the bezel NOTICE Carefully separate the bezel from the top cover to avoid damage to the bezel 5 Starting from the inside edges of bezel use your fingers to pry the bezel upward and outward from the display panel 1 screw covers display bumpers 6 2 M2 5 x 5 mm screws 3 display bezel 4 top cover Se A E Removing the Display Panel A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface Follow the instructions in Before Working Inside Your Computer 2 Remove the display assembly see Display Assembly 3 Remove the display bezel see Removing the Display Bezel 4 Remove the four M2 x 3 mm screws from each side of the display panel 5 Lift the display panel out of the top cover display panel top cover M2 x 3 mm screws Installing the Display Panel 1 Replace the eight M2 x 3 mm screws that secure the display panel to the top cover 2 Route the display feed flex cable and antenna cables so that they rest in the notch
13. click Stop 3 Press the device latch release 4 Pull the device out of the media bay To install a device push the new device into the bay until it clicks into place Back to Contents Page Back to Contents Page Palm Rest Dell Latitude D620 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide A CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove any devices installed in the media bay see Media Bay Devices 4 Remove the keyboard see Keyboard 5 Remove the display assembly see Display Assembly 6 Remove the internal card with Bluetooth wireless technology see Internal Card with Bluetooth Wireless Technology 7 Remove the coin cell battery see Coin Cell Battery 8 Remove the three screws labeled P from the top of the palm rest 9 Turn the computer upside down 10 Remove the hard drive see Hard Drive 11 Loosen the two captive screws located at the front of the hard drive bay 12 Remove the seven M2 5 x 8 mm screws from the bottom of the computer NOTICE Carefully separate the palm rest from the base plastics t
14. connectors NOTI CE To avoid damaging the WLAN card never place cables on top of or under the card K NOTE Your WLAN card may have two or three antenna cable connectors depending on the type of card you ordered K NOTE For more specific information about which cable to connect to which connector see the documentation that came with your WLAN card c Connect the antenna cables to the WLAN card ensuring that you route the cables correctly Mobile Broadband Card If you ordered a Mobile Broadband card with your computer the card is already installed A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide 1 Follow the procedures in Before You Begin 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 1 Mobile Broadband card 2 antenna wires 2 NOTICE To prevent damage to the connector do not use tools to spread the securing clips 4 Ifa Mobile Broadband card is not already installed go to step 5 If you are replacing a Mobile Broadband card remove the existing card a Disconnect the Mobile Broadband card from any attached cables Mobile Broadband card metal securing tabs 2 b Use your fingertips to carefully spread apart the metal securing tabs until the card pops up slightly c Slide and lift the Mobile Broadband card out of its connector NOTICE The connectors are keyed to ensure
15. correct insertion If you feel resistance check the connectors and realign the card K NOTE Do not insert a WLAN card into the Mobile Broadband card slot NOTICE The Mobile Broadband card may have one or two connectors depending on the type of card you ordered 5 To install a Mobile Broadband card a Move any antenna cables out of the way to make space for the Mobile Broadband card b Align the card with the connector at a 45 degree angle and press the card into the connector until you feel a click 1 Mobile Broadband card 2 antenna wires 2 NOTICE To avoid damaging the Mobile Broadband card never place cables on top of or under the card NOTE For more specific information about which cable to connect to which connector see the documentation that came with your Mobile Broadband card 6 Connect the antenna cable or cables to the Mobile Broadband card ensuring that you route the cables correctly Subscriber Identity Module SIM Card A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide 1 Follow the procedures in Before You Begin SIM card metal brackets 2 NOTICE Do not touch the SIM card connectors to protect the card from electrostatic discharge ESD To prevent ESD hold the card in your hand before you insert or remove the card 2 With the cut off corner on the card facing away from the card compartment insert th
16. ct a network cable first unplug the cable from your computer and then unplug it from the network device 3 Disconnect any telephone network and USB cables from the computer 4 Disconnect your computer and all attached devices from their electrical outlets 5 Turn over the computer NOTICE To avoid damaging the system board you must remove the main battery before you service the computer 6 Remove the battery a Slide the two battery bay latch releases on the bottom of the computer toward the sides of the computer until they are engaged b Grasp the battery by the battery tab and slide the battery horizontally toward the front of the computer c Lift to remove the battery from the bay battery bay latch release 7 Press the power button to ground the system board 8 Remove any installed ExpressCards from the ExpressCard slot Computer Orientation 1 front 2 left 3 back 4 right Screw Identification When you are removing and replacing components print this section as a tool to lay out and keep track of the screws The printout provides the number of screws and their sizes mE ee E H H H M2x3mm M2 5x5mm Optical Drive 1 each ja H M2 5 x 8 mm the computer Modem to System Board 2 each i H M2 x 3mm Top of Palm Rest to Computer Base 3 each Luss Hi M2 5 x 5 mm Speaker to Base Plastics 1 each H M2 x 3 mm 2 each j H M2 5 x 5
17. dule connector until the module pops up b Remove the module from the connector securing clips 2 per connector NOTICE Insert memory modules at a 45 degree angle to avoid damaging the connector 4 Ground yourself and install the new memory module K NOTE If the memory module is not installed properly the computer may not boot properly No error message indicates this failure a Align the notch in the module edge connector with the tab in the connector slot Slide the module firmly into the slot at a 45 degree angle and rotate the module down until it clicks into place If you do not feel the click remove the module and reinstall it b 5 Replace the memory module cover NOTICE If the cover is difficult to close remove the module and reinstall it Forcing the cover to close may damage your computer 6 Insert the battery into the battery bay or connect the AC adapter to your computer and an electrical outlet 7 Turn on the computer As the computer boots it detects the additional memory and automatically updates the system configuration information To confirm the amount of memory installed in the computer click Start Help and Support Use Tools to view your computer information and diagnose problems My Computer I nformation Back to Contents Page Back to Contents Page Communications Cards Dell Latitude D620 Service Manual Wireless Local Area Network WLAN Card Mobile Broadb
18. e SIM card into the compartment so that it slides under the metal tabs on the sides Back to Contents Page Back to Contents Page Modem Dell Latitude D620 Service Manual A CAUTION Before you begin the following procedure see the safety instructions in the Product I nformation Guide NOTICE To avoid damaging the system board you must remove the main battery before you begin working inside the computer see Before Working Inside Your Computer A CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the optical drive see Media Bay Devices 4 Remove the keyboard see Keyboard 5 Remove the coin cell battery see Coin Cell Battery 6 Remove the display assembly see Display Assembly 7 Remove the palm rest see Palm Rest 8 Remove the M2 x 3 mm screw that attaches the modem to the system board 9 Pull up on the pull tab to disconnect the modem from the connector on the system board 1 2 3 modem pull tab M2 x 3 mm screw modem cable A system board connector se S NOTICE Do not disconnect the modem cable from the system board 10 Disconnect the modem cable from the modem Back to Contents Page Bac
19. he Product Information Guide NOTICE To prevent data loss turn off your computer before removing the hard drive Do not remove the hard drive while the computer is on in standby mode or in hibernate mode NOTICE Hard drives are extremely fragile even a slight bump can damage the drive K NOTE Dell does not guarantee compatibility or provide support for hard drives from sources other than Dell To replace the hard drive in the hard drive bay 1 Follow the procedures in Before You Begin screws 2 2 Turn the computer over and remove the two hard drive screws NOTI CE When the hard drive is not in the computer store it in protective antistatic packaging See Protecting Against Electrostatic Discharge in the Product Information Guide 3 Slide the hard drive out of the computer 4 Remove the new drive from its packaging Save the original packaging for storing or shipping the hard drive NOTI CE Use firm and even pressure to slide the drive into place If you use excessive force you may damage the connector 5 Slide the hard drive into the bay until it is fully seated 6 Replace and tighten the two screws 7 Use the Operating System CD to install the operating system for your computer see your User s Guide for information 8 Use the Drivers and Utilities CD to install the drivers and utilities for your computer see your User s Guide for information Back to Contents Page Back to Contents
20. inge cover see Hinge Cover 1 keyboard 2 system board connector Back to Contents Page Back to Contents Page Memory Dell Latitude D620 Service Manual DIMMA DIMMB A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide NOTICE If your computer has only one memory module install the memory module in the connector labeled DIMMA NOTICE If you remove your original memory modules from the computer during a memory upgrade keep them separate from any new modules that you may have even if you purchased the new modules from Dell If possible do not pair an original memory module with a new memory module Otherwise your computer may not function at optimal performance K NOTE Memory modules purchased from Dell are covered under your computer warranty Your computer has two user accessible SODIMM sockets one accessed from beneath the keyboard DIMM A and the other accessed from the bottom of the computer DIMM B DI MM A 1 Follow the procedures in Before You Begin 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 1 memory module DIMM A 2 securing clips 2 NOTI CE To prevent damage to the memory module connector do not use tools to spread the memory module securing clips 4 If you are replacing a memory module ground yourself and remove the existing module a Use your fingert
21. ips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up b Remove the module from the connector 1 securing clips 2 per connector 2 memory module 5 Ground yourself and install the new memory module K NOTE If the memory module is not installed properly the computer may not boot properly No error message indicates this failure a Align the notch in the module connector with the tab in the connector slot b Slide the module firmly into the slot at a 45 degree angle and rotate the module down until it clicks into place If you do not feel the click remove the module and reinstall it DIMM B NOTICE If you need to install memory modules in two connectors install a memory module in the connector labeled DIMMA before you install a module in the connector labeled DIMMB Insert memory modules at a 45 degree angle to avoid damaging the connector 1 Follow the procedures in Before You Begin 2 Turn the computer bottom side up loosen the captive screw in the memory module cover and then remove the cover 1 1 memory module cover 2 captive screw NOTI CE To prevent damage to the memory module connector do not use tools to spread the memory module securing clips 3 If you are replacing a memory module ground yourself and remove the existing module a Use your fingertips to carefully spread apart the securing clips on each end of the memory mo
22. k to Contents Page Microphone Dell Latitude D620 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the optical drive see Media Bay Devices 4 Remove the keyboard see Keyboard 5 Remove the coin cell battery see Coin Cell Battery 6 Remove the palm rest see Palm Rest 7 Disconnect the microphone board from the system board Back to Contents Page Back to Contents Page Media Bay Devices Dell Latitude D620 Service Manual K NOTE If the device security screw is not present you can remove and install devices while the computer is running and connected to a docking device docked NOTI CE To prevent damage to devices store them in a safe dry place when they are not installed in the computer Avoid pressing down on them or placing heavy objects on top of them 1 If present remove the device security screw from the bottom of the computer 2 Ifthe computer is running double click the Safely Remove Hardware icon on the taskbar click the device you want to eject and
23. ker Dell Latitude D620 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the optical drive see Media Bay Devices 4 Remove the keyboard see Keyboard 5 Remove the coin cell battery see Coin Cell Battery 6 Remove the palm rest see Palm Rest 7 Disconnect the speaker connector from the system board speaker connector NOTICE Handle the speakers with care to avoid damaging them 8 Pull the speaker straight up and out of the base plastics Back to Contents Page Back to Contents Page System Board Dell Latitude D620 Service Manual Removing the System Board Installing the System Board Removing the System Board A CAUTION Before performing the following procedures follow the safety instructions in the Product I nformation Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface
24. king inside the computer 1 Follow the procedures in Before You Begin 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard coin cell battery connector plastic mylar coin cell battery 4 Remove the coin cell battery connector from the connector on the system board 5 Being careful not to break the plastic slightly raise the corner of the plastic mylar above the battery 6 While holding the mylar grasp the battery and pull out of the battery compartment Back to Contents Page Back to Contents Page Processor Module Dell Latitude D620 Service Manual Removing the Processor Module Installing the Processor Module Removing the Processor Module A CAUTION Before performing the following procedures follow the safety instructions in the Product I nformation Guide A CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface NOTICE Press and hold the processor down by applying slight pressure to the center of the processor while turning the cam screw to prevent intermittent contact between the cam screw and processor NOTICE To avoid damage to the processor hold the screwdriver so that it is perpendicular to the processor when turning the cam screw 1 Follow the instructions in Before Working Inside Your Co
25. m Board 1 Perform all the steps in Removing the System Board in reverse order K NOTE When installing the system board ensure that you align the wireless switch on the base with the switch on the system board 2 Insert the battery into the battery bay See Before Working Inside Your Computer 3 Connect the AC adapter to the computer and to an electrical outlet NOTICE Before turning on the computer replace all screws and ensure that no stray screws remain inside the computer Failure to do so may result in damage to the computer 4 Turn on the computer K NOTE After replacing the system board enter the computer Service Tag into the BIOS of the replacement system board 5 Insert the CD that accompanied the replacement system board into the appropriate drive Follow the instructions on the screen Back to Contents Page Back to Contents Page System Components Dell Latitude D620 Service Manual A CAUTION Only a certified service technician should perform repairs on your computer Damage due to servicing that is not authorized by Dell is not covered by your warranty NOTICE Unless otherwise noted each procedure in this document assumes that a part can be replaced by performing the removal procedure in reverse order a titties display latch display hinge cover keyboard 1 2 3 4 5 palm rest 6 fan assembly 7 system board 8 base plastics 9 optical drive 10 battery 11 spe
26. mputer 2 Remove the hinge cover see Hinge Cover 3 Remove the optical drive see Media Bay Devices 4 Remove the keyboard see Keyboard 5 Remove the coin cell battery see Coin Cell Battery 6 Remove the palm rest see Palm Rest 7 Remove the processor thermal cooling assembly see Processor Thermal Cooling Assembly NOTICE When removing the processor module pull the module straight up Be careful not to bend the pins on the processor module 8 To loosen the ZIF socket use a small flat blade screwdriver and rotate the ZIF socket cam screw counterclockwise until it comes to the cam stop The ZIF socket cam screw secures the processor to the system board Take note of the arrow on the ZI F socket cam screw ZIF socket cam screw ZIF socket pin 1 corner of processor 9 Use a processor extraction tool to remove the processor module Installing the Processor Module NOTICE Ensure that the cam lock is in the fully open position before seating the processor module Seating the processor module properly in the ZIF socket does not require force NOTICE A processor module that is not properly seated can result in an intermittent connection or permanent damage to the processor and ZIF socket 1 Align the pin 1 corner of the processor module so that it points to the triangle on the system board and insert the processor module into the ZIF socket When the processor module is correctly seated all four corners a
27. o avoid damage to the palm rest 13 Remove the palm rest a Starting at the back center of the palm rest use your fingers to separate the palm rest from the base plastics by lifting the inside edge of the palm rest b After the back of the palm rest is unsnapped push the palm rest forward to unhook the remainder of the palm rest from the front of the base 14 Disconnect the touch pad connector from the system board 1 touch pad connector Back to Contents Page Back to Contents Page PC Card Reader Dell Latitude D620 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product I nformation Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the optical drive see Media Bay Devices 4 Remove the keyboard see Keyboard 5 Remove the coin cell battery see Coin Cell Battery 6 Remove the palm rest see Palm Rest 7 Remove the four M2 x 3 mm screws that secure the PC Card reader to the computer 1 2 8 Use the pull tab to disconnect the PC Card reader connector from the system board Back to Contents Page Back to Contents Page Spea
28. o enter the system setup program 4 Press lt Alt gt and lt F gt to reset the computer defaults 5 Press lt Esc gt select Save changes and reboot and press lt Enter gt to save configuration changes 6 Remove the flash BIOS update program CD from the drive and restart the computer Flashing the BIOS From the Hard Drive 1 Ensure that the AC adapter is plugged in the main battery is properly installed and a network cable is attached 2 Turn on the computer 3 Locate the latest BIOS update file for your computer at support dell com 4 Click Download Now to download the file 5 If the Export Compliance Disclaimer window appears click Yes Accept this Agreement The File Download window appears 6 Click Save this program to disk and then click OK The Save In window appears 7 Click the down arrow to view the Save In menu select Desktop and then click Save The file downloads to your desktop 8 Click Close if the Download Complete window appears The file icon appears on your desktop and is titled the same as the downloaded BIOS update file 9 Double click the file icon on the desktop and follow the instructions on the screen Back to Contents Page Back to Contents Page Internal Card with Bluetooth Wireless Technology Dell Latitude D620 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in your Product Information Guide NOTICE To av
29. oid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of the computer NOTICE To avoid damaging the system board you must remove the main battery before you begin working inside the computer If you ordered an internal card with Bluetooth wireless technology with your computer it is already installed 1 Follow the procedures in Before You Begin 2 Remove the hinge cover see Hinge Cover 3 Gently pull left on the cable for the card with Bluetooth wireless technology 4 When there is enough clearance between the right edge of the card and the card holder insert a plastic scribe and pry the card to the left until it is released from the metal clip a faraave E S NOTICE Be careful when removing the card to avoid damaging the card card cable or surrounding components 5 Disconnect the card from the cable and remove the card from the computer Back to Contents Page Back to Contents Page Coin Cell Battery Dell Latitude D620 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of the computer NOTICE To avoid damaging the system board you must remove the main battery before you begin wor
30. re aligned at the same height If one or more corners of the module are higher than the others the module is not seated correctly NOTICE Hold the processor down while turning the cam screw to prevent intermittent contact between the cam screw and processor 2 Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board 3 Peel the backing off the thermal cooling pad and adhere the pad to the portion of the thermal cooling assembly that covers the processor 4 Replace the processor thermal cooling assembly see Processor Thermal Cooling Assembly 5 Replace the palm rest see Palm Rest 6 Replace the coin cell battery see Coin Cell Battery 7 Replace the keyboard see Keyboard 8 Replace the optical drive see Media Bay Devices 9 Replace the hinge cover see Hinge Cover 10 Replace the battery 11 Update the BIOS using a flash BIOS update program CD See Flashing the BIOS From a CD Back to Contents Page Back to Contents Page Display Assembly Dell Latitude D620 Service Manual Removing the Display Assembly Removing the Display Bezel Removing the Display Panel Installing the Display Panel Removing the Display Hinges Removing the Display Assembly A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide CAUTION To prevent static damage to components inside your computer discharge sta
31. seconds Before Working Inside Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety A o 00 CAUTI ON Before you begin any of the procedures in this section follow the safety instructions in the Product I nformation Guide CAUTI ON 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 NOTI CE Only a certified service technician should perform repairs on your computer Damage due to servicing that is not authorized by Dell is not covered by your warranty NOTI CE When you disconnect a cable pull on its connector or on its pull tab not on the cable itself Some cables have a connector 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 NOTI CE To avoid damaging the computer perform the following steps before you begin working inside the computer Ensure that the work surface is flat and clean to prevent the computer cover from being scratched Turn off your computer see Turning Off Your Computer NOTICE To disconne
32. tic electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 4 Pull straight up on the pull tab that is attached to the display feed flex cable to disconnect the cable from the system board 5 Disconnect the antenna cable s 6 Carefully remove the antenna cable and the display cables from their routing guides 7 Close the display 8 Turn the computer upside down with the back of the computer facing you 9 From the bottom of the computer remove the two M2 5 x 8 mm screws labeled D 10 From the back of the computer remove the two M2 5 x 8 mm screws 11 Turn the computer right side up and open the display 1 antenna cables 2 isplaycable J 12 Lift the display assembly out of the computer base Removing the Display Bezel A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the display assembly see Displ
33. uctions in Before Working Inside Your Computer 2 Remove the hard drive see Hard Drive 3 Remove any installed media bay device see Media Bay Devices 4 Remove the memory module s see Memory 5 Remove any installed wireless communications cards see Communications Cards 6 Remove the processor thermal cooling assembly see Processor Thermal Cooling Assembly 7 Remove the processor see Processor Module 8 Remove the hinge cover see Hinge Cover 9 Remove the keyboard see Keyboard 10 Remove the display assembly see Display Assembly 11 Remove the palm rest see Palm Rest 12 Remove the modem see Modem 13 Remove the speaker see Speaker 14 Disconnect the fan power cable from the system board 15 Remove the system board see System Board 16 Remove the M2 5 x 5 mm screw that secures the fan to the base fan assembly M2 5 x 5 mm screw 17 Lift the fan assembly out of the base Back to Contents Page Back to Contents Page Hard Drive Dell Latitude D620 Service Manual 4 NOTE You need the Operating System CD to install the Microsoft Windows operating system You also need the Drivers and Utilities CD for your computer to install the drivers and utilities on the new hard drive A CAUTION If you remove the hard drive from the computer when the drive is hot do not touch the metal housing of the hard drive A CAUTION Before working inside your computer follow the safety instructions in t
34. vember 2006 Rev A01 Back to Contents Page Base Dell Latitude D620 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product I nformation Guide CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hard drive see Hard Drive 3 Remove any installed media bay device see Media Bay Devices 4 Remove the memory module s see Memory 5 Remove any installed wireless communications cards see Communications Cards 6 Remove the processor thermal cooling assembly see Processor Thermal Cooling Assembly 7 Remove the processor see Processor Module 8 Remove the hinge cover see Hinge Cover 9 Remove the keyboard see Keyboard 10 Remove the display assembly see Display Assembly 11 Remove the palm rest see Palm Rest 12 Remove the modem see Modem 13 Remove the speaker see Speaker 14 Disconnect the fan power cable from the system board 15 Remove the system board see System Board 16 Remove the fan see Fan NOTE If the base has the improved K Lock the K Lock is held down with a screw Remove and discard the screw when installing this base as the screw is not needed Back to Contents
Download Pdf Manuals
Related Search