Service Manual - InformaticaNapoli
Contents
1. 32 Removing and Replacing Parts 3 Reinstall the 4 mm screw that secures the flex cable mounting bracket to the top cover 4 Starting on the left side use amagnetic screwdriver to reinstall the six 3 mm screws that secure the display panel in the top cover 5 Reinstall the display flex cable strain relief screw and reconnect the flex cable to the graphics card 6 Reinstall the display assembly bezel Removing the Display Latch Removing the Display Latch 1 Remove the hinge cover 2 Detach the display flex cable from the strain relief and the graphics card 3 Remove the display assembly bezel 4 Remove the display panel from the top cover 5 Remove the display latch by unsnapping the latch and captive spring Removing and Replacing Parts 33 www dell com support dell com Microprocessor Thermal Cooling Assembly NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Retaining Clip microprocessor retaining clip microprocessor thermal cooling assembly Removing the Microprocessor Thermal Cooling Assembly 1 Follow the instructions in Preparing to W ork Inside the C omputer 2 Remove the keyboard 3 Remove the hinge cover 34 Removing and Replacing Parts 4 Insert a flat blade screwdriv2. Preparing to W ork Inside the C omputer 2 Remove the keyboard 3 Remove the hinge cover 4 Detach the display flex cable from the strain relief and the graphics card 5 Remove the three 8 mm screws that secure the video graphics board 6 Separate the video graphics board from the system board connector Replacing the Video Graphics Board 1 Align the three screw holes and press down firmly on the word Dell to seat the board in its connector Removing and Replacing Parts 39 www dell com support dell com 40 NOTICE Make sure the board is correctly and firmly seated before continuing Failure to do so will cause intermittent video failures 2 Replace the three screws Palmrest Assembly NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Palmrest Assembly NOTICE The reserve battery provides power to the computer s time RTC and NVRAM when the computer is turned off Removing the palmrest disconnects the reserve battery and causes the computer to lose the date and time information as well as all user specified parameters in NVRAM If possible make a copy of this information before you disconnect the reserve battery Removing and Replacing Parts Removing the Palmrest Assembly 1 Follow the i
3. 10 placement map 11 system board assembly 44 system components 14 Index 57 T tools recommended 9 V video graphics board removing 39 replacing 39 58 Index 064MCW A01 P N 64MCW Rev AOL Printed inthe U S A www dell com support dell com
4. NOTICE Unless otherwise noted each procedure in this manual assumes that a part can be replaced by performing the removal procedure in reverse order Hard Drive NOTICE Disconnect the computer and attached devices from the electrical outlet and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer NOTICE The hard drive is very sensitive to shock Handle it by its edges do not squeeze the top of the case and avoid dropping it Hard Drive bottom of computer 5 mm screw pa H M3 x5mm hard drive door Removing and Replacing Parts 15 www dell com support dell com 16 Removing the Hard Drive 1 Follow the instructionsin Preparing to W ork Inside the C omputer 2 Removethe drive door screw 3 Pull the hard drive out Replacing the Hard Drive 1 Gently push the hard drive into the drive bay until the drive door is flush with the computer case 2 Push down on the drive until it snaps into place 3 Replacethe screw in thehard drive door Fixed Optical Drive NOTICE Disconnect the computer and attached devices from the electrical outlet and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Fixed Optical Drive Removing and Replacing Parts Removing the F
5. Screws 4 mm captive washer screws 3 20 mm y MO system board assembly bottom case assembly M2 3 4mm Removing and Replacing Parts captive washer M2 5 x 20 mm The system board s BIOS chip contains the system service tag number which isalso visible on a bar code label on the bottom of the computer Removing and Replacing Parts 45 www dell com support dell com 46 The replacement kit for the system board assembly includes a diskette or CD that provides a utility for transferring the service tag number to the replacement system board assembly NOTICE If you received a flash BIOS update program diskette or CD with the replacement microprocessor you must update the BIOS after replacing the microprocessor module For instructions on updating or reflashing the BIOS see the Del Portable Computer BIOS Update Guide Removing the System Board 1 o o N O U R W N FPP HE _H BH B WN o Follow the instructions in Preparing to W ork Inside the C omputer Remove the hard drive and the fixed optical drive Remove any installed M ini PCI Cards If migrating the memory remove all installed memory modules Remove the keyboard Remove the hinge cover Remove the display assembly Remove the palmrest assembly Remove the video graphics board Remove the microprocessor thermal cooling assembly If migrating the microprocessor remove the microprocessor module Remove the three 4 mm captive wa
6. covered by your warranty NOTICE To avoid damaging the computer perform the following steps before you begin working inside the computer Make sure that the work surface is flat and clean to prevent scratching the computer cover Save any work in progress and close all open application programs Turn off the computer and all attached devices Ea NOTE Before turning off the computer make sure the computer is not in a power management mode M ake sure the computer is undocked Disconnect the computer from the electrical outlet To avoid possible damage to the system board wait 10 to 20 seconds and then disconnect any attached devices Disconnect all other external cables from the computer Remove any installed PC Cards or plastic blanks from the PC Card slot Close the display and turn the computer upside down on a flat work surface Remove the battery from the battery bay i NOTICE To avoid component damage always remove any installed batteries before you service the computer Remove any device installed in the modular bay To dissipate static electricity while you work periodically touch an unpainted metal surface on the computer chassis Handle components and cards by their edges and avoid touching pins and contacts Recommended Tools The procedures in this manual require the following tools e 1 magnetized Phillips screwdriver Small flat blade screwdriver e Small plastic scribe Microproces
7. ed 15 Removing the Hard Drive 16 Replacing the Hard Drive 16 Fixed Optical Drive 2 Fa Yg 16 Removing the Fixed Optical Drive 17 Memory Module A FA yg Lig Removing the Memory Module Cover 17 Removing the Memory Modules 18 ReplacingtheMemoryModules 04 18 Mini PCI Card Assembly yg 19 Removing the M ini PCI Card Assembly 20 Replacing the M ini PCI Card Assembly 1 1 21 Keyboard Assembly 0 0000 eee a Ag 22 Removing the Keyboard Assembly 0 4 23 Replacing the Keyboard Assembly 1 1 25 Display and Bezel Assemblies 26 Removing the Hinge Cover ag 27 Removing the Display Assembly 28 Removing the Display Assembly Bezel 30 Removing the Display Panel ag 31 Replacing the Display Panel 32 Removing the Display Latch 21 33 Microprocessor Thermal Cooling Assembly 3 4 Removing the Microprocessor Thermal Cooling Assembly 34 MicroprocessorModue a 35 Removing the Microprocessor Module 36 Replacing the Microprocessor Module 37 Video Graphics Board A 38 Removing the Video Graphics Board 39 Replacing the Video GraphicsBoard 39 Palmrest Assembly Y A FR a 40 Removing
8. located across the top of the bezel Use ascribe at the indentations to pry out the two plastic screw covers located at the bottom of the bezel Remove the two 4 mm screws located at the bottom of the bezel Separate the bezel from the display assembly top cover The bezel is secured to the display assembly top cover with plastic tabs around the sides U se a plastic scribe to help separate the bezel from the top cover Removing the Display Panel 1 2 Remove the hinge cover Detach the display flex cable from the strain relief and the graphics card Remove the display assembly bezel Remove the 4 mm screw securing the plastic flex cable mounting bracket to the top cover assembly Remove the six 3 mm screws three on each side from the right and left sides of the panel Lift the display panel and flex cable out of the top cover assembly Disconnect the flex cable from the two connectors a ZIF and a standard connector on the display panel assembly Removing and Replacing Parts 31 www dell com support dell com Flex Cable Connectors on Display Panel ZIF connector standard connector Replacing the Display Panel F NOTE Use a magnetic screwdriver to reassemble the display panel in the display 1 Connect the flex cable to the two connectors on the back of the display panel 2 Place the display panel assembly in the top cover taking care that the flex cable isin place and is not crushed or crimped
9. the Reserve Battery 1 o ut A W N Follow the instructionsin Preparing to W ork Inside the C omputer Remove the keyboard Remove the hinge cover Remove the display assembly Remove the palmrest assembly On the underside of the palmrest disconnect the flex cable from the ZIF connector Palmrest Flex Cable and Bracket 10 4 mm screw 2 palmrest bracket P i A 2 palmrest flex cabl m M2 5x4mm Remove the two 4 mm screws securing the palmrest bracket W hile supporting the palmrest flex cable lift out the palmrest bracket and turn it over Disconnect the reserve battery cable Remove the reserve battery a Pry the reserve battery free from the metal palmrest bracket b Remove the foam pad remnants from the palmrest bracket Removing and Replacing Parts 43 www dell com support dell com Replacing the Reserve Battery 1 Seat the reserve battery and press it into place 2 Connect the reserve battery cable 3 Place the palmrest bracket loosely in the palmrest and connect the palmrest flex cable to the ZIF connector 4 Replace the two 4 mm screws that secure the palmrest bracket to the pal mrest System Board Assembly NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer System Board
10. thePalmrest Assembly 0 41 Reserve Battery 2 2 FR A 42 Removing the Reserve Battery 004 43 Replacing the Reserve Battery 1 44 System BoardAssembly 2000000005 44 Removing the System Board 46 Battery and Modular Bay Latch Assemblies 47 Removing and Replacing the Battery and Modular Bay Latch Assemblies 0 48 Battery Charger Board 00000000 49 Removing the Battery Charger Board 50 Replacing the Battery Charger Board 50 LED Boardi a chi ne PAO ope BD Misa 51 Removing the LED Board 21 51 ReplacingtheLEDBoard 2 00 52 Fan Assembly us wwa FAG ee a dea e WA PSS 52 Removing theFanAssembly 11 52 RJ 11 RJ 45 Board 0 53 Removing the Protective Covers From the RJ 11 and RJ 45 Connectol Siu ao w i wawa ee AO ek dd 53 Removing the RJ 11 R 45 Board 54 SECTION 1 Before You Begin Preparing to Work Inside the Computer Recommended Tools Screw Identification z o p n ie 3 wm i ko go ie aj rt o 2 O ie 3 www dell com support dell com 8 Before You Begin Preparing to Work Inside the Computer 10 11 12 13 NOTICE Only a certified service technician should perform repairs on your computer Damage due to servicing that is not authorized by Dell is not
11. Dal Latitude C800 SERVICE MANUAL www dell com support dell com SERVICE MANUAL www dell com DELL support dell com Notes Notices and Cautions Ei NOTE A NOTE indicates important information that helps you make better use of your computer O NOTICE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem N CAUTION A CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury Information in this document is subject to change without notice 2000 2001 Dell Computer Corporation All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden Trademarks used in this text Dell the DE LL logo and L atitudeare trademarks of Dell Computer Corporation 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 Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own January 2001 P N64MCW Rev A01 Contents 1 Before Y ou Begin Preparing to Work Inside the Computer 8 Recommended Tools 0 0 00208 9 Screw Identification 0 0 0 000000 004 10 2 Removing and Replacing Parts System Components FF A FR A Ra 14 Hard DRIVE 2 se pi dt a RA OEM NS ee
12. ay from the back panel bracket NOTICE When reconnecting the fan cables connect the shorter cable to the connector closest to the fan assembly Route both cables so that they will not be pinched by the thermal cooling assembly RJ 11 RJ 45 Board NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer RJ 11 and RJ 45 Connector Covers 3 connector covers a Removing the Protective Covers From the RJ 11 and RJ 45 Connectors Remove a plastic connector cover if necessary by slipping a nonmarring tool into the cutout at the top and pivoting the tool up to disengage the inner securing tab Removing and Replacing Parts 53 www dell com support dell com 54 To replace aconnector cover orient the cover notch side up and snap it into the connector cutout RJ 11 RJ 45 Board 4 mm screw ja H M2 5 x4 mm Removing the RJ 11 RJ 45 Board 1 Follow the instructionsin Preparing to W ork Inside the C omputer 2 Remove the system board 3 Remove the 4 mm screw from the RJ 11 RJ 45 board NOTICE The plastic tab is fragile pull it back only far enough to remove the board assembly 4 Reach into the enclosure and while pulling the tall plastic tab away from the board assembly to release it lift o
13. e the microprocessor module Ou NOTICE To avoid damage to the microprocessor hold the screwdriver so that it is perpendicular to the microprocessor when removing the cam lock screw see Microprocessor Cam Lock Screw a Loosen the microprocessor socket cam lock screw The location of the screw and the rotation direction may vary with the socket manufacturer look for small icons indicating open and locked positions Removing and Replacing Parts Microprocessor Cam Lock Screw Example NOTICE Hold the microprocessor down while turning the cam lock screw to prevent intermittent contact between the cam lock screw and microprocessor perpendicular penewaciveso processor die b Use the microprocessor extraction tool to remove the microprocessor module Replacing the Microprocessor Module NOTICE If you received a flash BIOS update program diskette or CD with the replacement microprocessor you must update the BIOS after replacing the microprocessor module For instructions on updating or reflashing the BIOS see the Dell Portable Computer BIOS Update Guide NOTICE Proper seating of the microprocessor module does not require force NOTICE A microprocessor module that is not properly seated can result in an intermittent connection and subsequent failures 1 Align the pin 1 triangle on the microprocessor toward the pin 1 triangle in the socket insert the microprocessor into the socket and move it around
14. econd memory module in the socket labeled DIMM B 18 Removing and Replacing Parts Ed NOTE Memory modules are keyed to fit into their sockets in only one direction 2 Insert the memory module s edge connector into the socket slot at a 45 degree angle and press the module firmly into the slot 3 Pivot the module down until it clicks into place If you do not hear a click remove the module and reinstall it 4 Insert the metal tabs on the memory module cover into the bottom case assembly rotate the cover down and replace the screw Mini PCI Card Assembly You must remove the optional M ini PCI Card assembly before the system board assembly can be removed A M ini PCI Card assembly may consist of a modem a NIC a modem and NIC combination or a wireless NIC A modem NIC or modem and NIC combination must be connected to the wiring harness as appropriate a wireless NIC must be connected to the system s internal antenna NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Removing and Replacing Parts 19 www dell com support dell com Mini PCI Card Cover 20 mm screw A M2 5 x 20 mm Removing the Mini PCI Card Assembly 1 2 3 Follow the instructions in Preparing to W ork Inside the C omputer R
15. emove theM ini PCI Card cover To release the Mini PCI Card assembly spread the metal securing tabs until the assembly pops up slightly Disconnect the assembly from the wiring harness or internal antenna Lift out the assembly and disconnect any attached cables 20 Removing and Replacing Parts Replacing the Mini PCI Card Assembly 1 Align the Mini PCI Card assembly with the socket at a 45 degree angle and press theM ini PCI Card into the socket 2 Depending on what type of M ini PCI Card you are installing either connect the wiring harness to the Mini PCI Card assembly or connect the mini coax antenna cable from the Mini PCI Card assembly to the intemal antenna NOTICE The connectors are keyed for correct insertion do not force the connections Mini PCI Card Assembly Using Wiring Harness wiring harness Removing and Replacing Parts 21 www dell com support dell com Mini PCI Wireless NIC Assembly Using Antenna Cable connection to internal system antenna mini coax antenna cable outermost antenna connector on card wiring harness o NOTICE If a wireless NIC card contains two mini coax antenna connectors connect the mini coax antenna cable to the outermost antenna connector on the card as shown NOTICE If you are installing a wireless NIC fold and tuck the unused wiring harness into the slot so it does not interfere with the cover 3 Pivot the Mini PCI Card assembly down until i
16. er into the latch mechanism at the left side of the microprocessor retaining clip Pry open the clip by pivoting the top of the screwdriver toward the right side of the computer Microprocessor Thermal Cooling Assembly microprocessor thermal cooling assembly o NOTICE To ensure maximum cooling for the microprocessor do not touch the heat transfer areas on the microprocessor thermal cooling assembly The oils in your skin reduce the heat transfer capability of the thermal pads 5 Lift out the thermal cooling assembly Microprocessor Module NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Removing and Replacing Parts 35 www dell com support dell com 36 Microprocessor Module Removing the Microprocessor Module 1 Follow the instructionsin Preparing to W ork Inside the C omputer Remove the keyboard Remove the hinge cover 2 3 O NOTICE To ensure maximum cooling for the microprocessor do not touch the heat transfer areas on the thermal cooling assembly The oils in your skin reduce the heat transfer capability of the thermal pads Remove the microprocessor thermal cooling assembly O NOTICE When removing the microprocessor module pull the module straight up Do not bend the pins Remov
17. ixed Optical Drive 1 Follow the instructions in Preparing to W ork Inside the C omputer 2 Loosen the captive screw on the bottom of the computer NOTICE To keep the pull tab from catching on the captive screw turn the computer over before removing the fixed optical drive 3 Turn the computer over pull out the pull tab and use the pull tab to remove the fixed optical drive Memory Module NOTICE Disconnect the computer and any attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Removing the Memory M odule Cover Memory Module Cover 20 mm screw oo m M2 5 x 20 mm Removing and Replacing Parts 17 www dell com support dell com 1 Follow the instructions in Preparing to W ork Inside the C omputer 2 Remove the screw 3 Disengage the metal tabs at the opposite end of the cover Memory Modules memory module sockets 2 DIMM B DIMM A tabs 2 per socket Removing the Memory Modules 1 Removethe memory module cover 2 To release a memory module from its socket spread apart the tabs at each side of the module until the module pops up slightly 3 Lift the memory module out of its socket Replacing the Memory Modules 1 If you only have one memory module install it in the socket labeled DIMM A Install a s
18. mbly upright on its left end connect the keyboard cable to the interface connector on the system board NOTICE Position the keyboard track stick flex cable so it is not pinched when you replace the keyboard in the bottom case assembly 2 Insert the metal tabs at the left end of the keyboard under the edge of the bottom case assembly and fit the keyboard into place 3 Check that the keyboard is correctly installed The keys should be flush with the left and right surfaces of the palmrest 4 Reinstall the four screws in the holes labeled circle K Removing and Replacing Parts 25 www dell com support dell com Display and Bezel Assemblies o NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Display Assembly display flex cable hinge cover 6 mm screws 3 aa H M2 5 x 6 mm bottom case assembly 26 Removing and Replacing Parts Removing the Hinge Cover Hinge Cover hinge cover 1 Follow the instructions in Preparing to W ork Inside the C omputer 2 Useanonmarring tool to loosen the hinge cover at the back and at each side of the computer 3 Open the display and lift off the hinge cover Removing and Replacing Parts 27 www dell com support dell com Removing the Dis
19. mrest to Bottom C ase Assembly M2 5 x 20 mm 9 each i Palmrest B racket M2 5 x 4mm 2 each ma System Board M 2 5 x 4mm captive washer 3 each M 2 5 x 20mm 1 each Emmy LED Board M 2 0 x 4mm 2 each 2a Fan Assembly M 2 0 x 4 mm 3 each kz RJ 11 RJ 45 Board Assembly M 2 5 x 4mm 1 each a Before You Begin 11 woos gt sep jaoddns uos sep mMMM Before You Begin 12 SECTION 2 Removing and Replacing Parts System Components Hard Drive Fixed Optical Drive M emory M odule Mini PCI Card Assembly Keyboard Assembly Display and Bezel Assemblies Microprocessor Thermal Cooling Assembly Microprocessor M odule Video Graphics Board Palmrest Assembly Reserve B attery System Board Assembly Battery and M odular Bay Latch Assemblies Battery Charger Board LED Board Fan Assembly RJ 11 RJ 45 Board z o p n ie 3 wm c ko o ie rt o 2 O ie 3 www dell com support dell com 14 System Components Exploded View display assembly keyboard palmrest assembly fixed optical drive main battery Removing and Replacing Parts thermal cooling assembly system board bottom case assembly NOTICE 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
20. nstructions in Preparing to W ork Inside the C omputer 2 Remove the hard drive and the fixed optical drive 3 Remove the keyboard 4 Remove the hinge cover 5 Remove the display assembly NOTICE To avoid damaging the palmrest assembly you must first remove the display assembly 6 Turn the computer over 7 Remove the nine 20 mm screws labeled with a circle P that secure the palmrest to the computer Palmrest Screws P M2 5 x 20 mm Removing and Replacing Parts 41 www dell com support dell com 42 8 Turn the computer over 9 Usethe pull loop to disconnect the palmrest flex cable from the touch pad connector on the system board 10 Carefully lift out the palmrest assembly Reserve Battery NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Reserve Battery mn reserve battery cable reser ve battery palmrest bracket NOTICE The reserve battery provides power to the computer s RTC and NVRAM when the computer is turned off Removing the battery causes the computer to lose the date and time information as well as all user specified parameters inNVRAM If possible make a copy of this information before you remove the reserve battery Removing and Replacing Parts Removing
21. nto the slider and reinstall both pieces in the latch housing on the inside of the case b Ensure that the slider is inserted so that the side with the two bumpsis facingthe back of the case and the surface with the wear ribs is facing the bottom of the case 7 Hold the upper latch assembly in place while you snap the new latch button in from undemeath the base making certain the snap tabs are fully engaged in the slider 8 Ensure that the newly installed latch assembly moves smoothly and freely when pushed and released Battery Charger Board NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries o NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Removing and Replacing Parts 49 www dell com support dell com 50 Battery Charger Board Removing the Battery Charger Board 1 Follow the instructionsin Preparing to W ork Inside the C omputer Remove the keyboard Remove the hinge cover Remove the display assembly Remove the palmrest assembly Remove the video graphics board y o O R W N Lift the battery charger board out of the system board connector Replacing the Battery Charger Board Align the screw holes on the battery charger board with the screw holes on the bottom case assembly see Battery Charger Board and then pressthe battery charger board do
22. play Assembly Display Assembly 6 mm screws 2 ir M2 5 x 6 mm 1 Removethe hinge cover NOTICE Make sure you remove the flex cable before you remove the display assembly 28 Removing and Replacing Parts Flex Cable 6 mm screw pull loop strain relief M2 5 x 6mm 2 Removethe 6 mm screw that secures the display flex cable to the strain relief and then usethe pull loop to remove the display flex cable from the graphics card NOTICE When reconnecting the flex cable press down on both ends of the connector not in the middle Pressing the middle of the connector can damage fragile components 3 Open the display and from the back of the computer remove the two screws labeled with a circle D that secure the display assembly to the bottom case assembly 4 With the display in an upright position lift the display assembly from the bottom case assembly Removing and Replacing Parts 29 www dell com support dell com Display Assembly Bezel and Panel 4 mm screws 6 rubber screw covers 4 plastic screw covers 2 display assembly bezel plastic tabs 6 display panel F yi flex ode 4 mm 4 screw hinge cover 3 mm a ja H M2 x3 mm M2 5 x4 mm Removing the Display Assembly Bezel 1 Usea scribe to pry out the four rubber screw covers located across the top of the bezel 30 Removing and Replacing Parts Remove the four 4 mm screws
23. sher screws from the system board Remove the 20 mm screw from the center of the LED board Lift the front of the system board and work it out of the back panel Removing and Replacing Parts System Board Battery and Modular Bay Latch Assemblies NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Removing and Replacing Parts 47 www dell com support dell com location of snap tabs 2 latch buttons 2 48 Battery and Modular Bay Latch Assemblies wear ribs 2 on underside bumps slider spring bottom case assembly Removing and Replacing the Battery and Modular Bay Latch Assemblies 1 Uu R W N Follow the instructions in Preparing to W ork Inside the C omputer Remove the keyboard Remove the hinge cover Remove the display assembly Remove the palmrest assembly Removing and Replacing Parts 6 Remove alatch button from the bottom case assembly by squeezing the snap tabs in the center of the latch Apply downward pressure to the tabs while squeezing them together tweezers work well to eject the latch button from the bottom of the case without loosening the upper latch assembly spring and slider If the upper latch assembly does come loose a Reinsert the spring o
24. slightly until you feel it settle into the socket W hen the microprocessor module is correctly seated all four corners are aligned to the same height If one or more corners of the module are higher than the others the module is not seated correctly Removing and Replacing Parts 37 www dell com support dell com NOTICE Hold the microprocessor down while turning the cam lock screw to prevent inter mittent contact between the cam lock screw and microprocessor see Microprocessor Cam Lock Screw 2 Tighten the cam lock screw o NOTICE Do not over or undertighten the screw Tighten it until the screw indicator points to the closed or locked indicator on the socket 3 Replace the microprocessor thermal cooling assembly Closing the Microprocessor Retaining Clip 4 While pressing lightly down on the center of the retaining clip insert a flat blade screwdriver into the latch mechanism and pivot the top of the screwdriver away from the clip to close the latch Video Graphics Board NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries 38 Removing and Replacing Parts NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Video Graphics Board 8 mm screws 3 z mm M2 5 x 8 mm Removing the Video Graphics Board 1 Follow the instructions in
25. sor extractor e Nonmarring tool Flash BIOS upgrade program diskette or CD provided when needed to upgrade the system BIOS System Orientation back of computer left right front of computer BeforeYou Begin 9 www dell com support dell com Screw Identification W hen you are removing and replacing components photocopy the placemat as a tool to lay out and keep track of the component screws T he placemat provides the number of screws and the sizes Screw Identification Uu poa ua lu n Hu e EHH H M3 x5mm M2 5 x 20mm M2 5 x 8 mm M2 5 x 6 mm M2 5 x4 mm captive washer a a H H H M2 5 x4 mm M2 x4 mm M2 x 3 mm o NOTICE When reinstalling a screw you must use a screw of the correct diameter and length M ake sure that the screw is properly aligned with its corresponding hole and avoid overtightening 10 Before You Begin Screw Placement Map Hard D rive D oor Security M3 0x 5 mm 1 each Keyboard to Bottom C ase Assembly M 2 5 x 20 mm 4 each onein memory door and one in mini Display to Base M 2 5 x6 mm 3 each 2 at back of system 1 at flex cable strain relief a PCI door imi oo Display Bezel Display Panel to Display Video Graphics Board Rubber screw covers 4 each M ounting Bracket M 2 5 x 8 3 each Plastic screw covers 2 each M 2 0 x 3 mm 6 each M2 5 x 4mm 6 each am a FlexC able M ounting Bracketto Top Cover M25x4mm leach ma Pal
26. t clicks into place 4 Replace the M ini PCI Card assembly cover Keyboard Assembly NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer 22 Removing and Replacing Parts Keyboard Screws 20 mm screws 4 M2 5 x 20 mm Removing the Keyboard Assembly 1 Follow theinstructionsin Preparing to W ork Inside the C omputer 2 Turn the computer over and remove the four screws labeled with a cirdeK 3 Turn the computer over and open the display NOTICE Be careful when handling the keyboard The keycaps are fragile easily dislodged and time consuming to replace 4 Useanonmarring tool under the blank key to pry up the keyboard Removing and Replacing Parts 23 www dell com support dell com 24 Keyboard Removal scalloped edge of blank key right side of computer 5 Lift the right end of the keyboard and slide it slightly toward the right side of the computer to disengage the tabs at the left end 6 Pivot the keyboard and balance it upright on the left side of the computer Removing and Replacing Parts Keyboard Cable keyboard cable 7 Disconnect the keyboard cable and lay the keyboard assembly aside Replacing the Keyboard Assembly 1 While bracing the keyboard asse
27. ut the assembly W hen replacing the RJ 11 RJ 45 board assembly protect the wiring harness by routing it between the plastic posts Removing and Replacing Parts RJ 11 RJ 45 Board Harness Routing Removing and Replacing Parts 55 www dell com support dell com 56 Removing and Replacing Parts Index B battery charger board removing 50 replacing 50 D display and bezel assemblies illustrated 26 display assembly 28 bezel removal 30 display assembly bezel 30 display assembly bezel and panel illustrated 30 display flex cable 29 32 display latch 33 display panel removing 31 replacing 32 F fan assembly 52 fixed optical drive 16 flex cable display 29 32 palmrest 43 H hard drive removing 16 replacing 16 hinge cover 27 K keyboard assembly removing 23 replacing 25 L latch assemblies battery and modular bay 47 LED board removing 51 replacing 52 M memory module removing modules 18 removing the cover 17 replacing modules 18 microprocessor module removing 36 replacing 37 microprocessor thermal cooling assembly 34 mini PCI card assembly removing 20 replacing 21 P palmrest assembly 40 palmrest flex cable 43 preparing to work inside the computer 8 R reserve battery removing 43 replacing 44 RJ 11 and RJ 45 board assembly removing and replacing 54 removing the covers 53 5 screws identification
28. wn into its connector Removing and Replacing Parts LED Board NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer LED Board 4 mm screws 2 Removing the LED Board 1 Follow the instructionsin Preparing to W ork Inside the C omputer 2 Remove the hinge cover 3 Remove the two 4 mm screws 4 Lift the LED board away from its connector Removing and Replacing Parts 51 www dell com support dell com Replacing the LED Board 1 Align the two screw holes with the two mounting holes on the bottom case assembly and press the board into its connector 2 Replace the two 4 mm screws Fan Assembly NOTICE Disconnect the computer and attached devices from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the computer Fan Assembly 4 mm screws 3 ye M2x4mm Removing the Fan Assembly Follow the instructions in Preparing to W ork Inside the C omputer Remove the system board Remove the three 4 mm screws from the fan assembly Disconnect the two fan cables from the system board fan cables 1 2 3 4 52 Removing and Replacing Parts 5 Pull the fan assembly aw
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