SERVICE MANUAL
Contents
1. 14 Figure 13 Removing the Keyboard Assembly Screws 18 Figure 14 Removing the Palmrest Assembly Screws 19 Figure 15 Palmrest Assembly Removal 21 Figure 16 Bottom Assembly 22 Figure 17 Main Battery Release Latch a 23 Figure 18 Thermal Cooling Solution Removal 24 Figure 19 System Board Assembly Removal 26 Figure 20 Microprocessor a rehus Owns See eS 29 Table 1 Screw Placement Mat with Component Screw Counts and Sizes 4 Tables lii Read This First A prerequisite for using this manual to service Dell computer systems is a basic knowledge of PCs and prior training in PC troubleshooting techniques In addition to information provided in this manual Dell provides theUser s Guide for trou bleshooting procedures and instructions on using the Dell Diagnostics to test the computer system Notes Notices and Cautions Throughout this guide blocks of text may be accompanied by an icon and printed in bold type or in italic type These blocks are notes notices and cautions and they are used as follows NOTE A NOTE indicates important information that helps you make better use of your computer system 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 potentially hazardous situation which if not avoided may result in minor or mod2. Bottom Assembly fan Alp assembly thermal cooling solution main battery release latch location system board MARS assembly main battery compartment touch pa N F bottom case cover Figure 16 Bottom Assembly reserve battery N The bottom assembly consists of the following field replaceable components Reserve battery Main battery Main battery release latch e Thermal cooling solution e System board assembly Fanassembly e Touch pad e Bottom case cover Reserve Battery NOTICE The reserve battery provides power to the computer s real time clock RTC and nonvolatile random access memory NVRAM when the computer is turned off Removing the battery causes the computer to lose its date and time information as well as all user settable parameters in NVRAM If possible make a copy of this information before you remove the reserve battery 1 Remove the status indicator panel see Figure 9 2 Remove the keyboard see Figure 13 22 Dell Latitude CS Portable Computers Service Manual 3 Disconnect the reserve battery cable from the connector on the system board and lift the reserve battery see Figure 16 The reserve battery is located behind the hard disk drive and is attached to the system board with an adhesive foam pad 4 Tear the reserve battery free from the foam pad 5 Remove the remnants of the foam pad from the system board Main Battery See the Preparing to W
3. Remove the keyboard see Figure 13 Remove the two M2 x 2 5 mm screws located at the top of the palmrest assembly see Figure 15 1 2 3 NOTICE Make sure that the work surface is clean to prevent scratching the computer cover Turn the computer upside down on a flat work surface Remove the seven M2 x 4 mm screws that secure the palmrest to the computer These screws are located along the left and right sides on the bottom of the computer see Figure 14 Remove the five M2 x 2 5 mm screws located in the main battery compartment see Figure 14 Turn the computer right side up on the work surface Lift the front of the palmrest assembly up and rotate it to a 90 degree angle from the bottom assembly Carefully disconnect the microphone and speaker connectors from the system board the microphone and speaker connections are located on the back right hand corner of the system board 4 5 NOTE The female connectors are keyed to fit into the male connectors one way only Also the microphone and speaker connectors are keyed to fit their specific connectors only 10 Carefully remove the palmrest assembly from the bottom assembly see Figure 15 Dell Latitude CS Portable Computers Service Manual 20 21 ee M2 x 2 5 mm screws 2 6 9 7 o ga 4 oy Re ri palmrest assembly M2 x 2 5 mm Figure 15 Palmrest Assembly Removal Dell Latitude CS Portable Computers Service Manual
4. 2 media bay port cover E 7 M2 X 2 5 screws 2 M2x 2 5 mm M2x4mm M26x6 mm Figure 19 System Board Assembly Removal The system board s BIOS chip contains the system service tag number which is also visible on a barcode label on the bottom of the computer The replacement kit for the system board assembly includes a diskette that provides a utility for transferring the service tag number to the replacement system board assembly 26 Dell Latitude CS Portable Computers Service Manual To remove the system board assembly perform the following steps NOTICE To avoid damaging the system board you must remove the main battery before you service the computer 1 Remove the palmrest assembly see Figure 15 2 Remove the thermal cooling solution seeFigure 18 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 3 Remove the media bay port cover from the bottom assembly by removing the two M2 x 2 5 screws from the bottom of the media bay port cover and removing the two media bay port screws see Figure 19 4 Remove the main battery release latch seeFigure 17 5 Use a 5 mm socket wrench to remove the four 5 mm sockets for the VGA and parallel ports located on the back of the bottom assembly 6 Use a 7 mm socket wrench to remove the two 7 mm sockets for the docking co
5. A 8 R P N 0708R Rev A01 87 8
6. half of the packing bezel holds the LCD panel in place with six hooks two located on the top left two located on the top right and one located on each side approximately two thirds up the length of each side Packing a Defective Sharp LCD Panel for Return Shipping To assemble the Sharp LCD panel and packing bezel for return shipment perform the following steps 1 Place the LCD panel in to the bottom half of the packing bezel 2 Place the top half of the packing bezel on the LCD panel Dell Latitude CS Portable Computers Service Manual 17 3 Make sure that the six hooks on the shipping bezel hold the LCD panel firmly in place behind Keyboard Assembly Pa M2 18mm black screwsZ keyboard assembl M2 x 16 mm Figure 13 Removing the Keyboard Assembly Screws To remove the keyboard assembly perform the following steps NOTICE To avoid damaging the system board you must remove the main battery before you service the computer NOTICE Make sure that the work surface is clean to prevent scratching the computer cover 1 Remove the status indicator panel seeFigure 9 2 Remove the two black M2 x 16 mm screws located at the top of the keyboard see Figure 13 3 Carefully disconnect the keyboard cable connector from the system board NOTICE The keycaps on the keyboard are fragile easily dislodged and time consuming to replace Be careful when removing and handling the keyboard 4 Release the key
7. screws located at the top and bottom of the bezel on the front of the display assembly see Figure 12 3 Separate the bezel from the display assembly top cover The bezel is secured by slot openings that snap into the display assembly top cover Lift the inside edge of the bezel working your way around the inside perimeter to unsnap and remove it from the display assembly 14 Dell Latitude CS Portable Computers Service Manual NOTICE A magnet is mounted on the back side of the bezel behind the left hinge extension cover Keep diskettes and other magnetic storage media away from this area to avoid the potential for data loss Display Assembly Latch NOTICE To avoid damaging the system board you must remove the main battery before you service the computer 1 Remove the Sharp display assembly bezel seeFigure 11 or the Samsung display assembly bezel see Figure 12 2 Remove the display assembly latch by sliding the latch from the inside of the display assembly bezel see Figure 11 LCD Panel NOTICE To avoid damaging the system board you must remove the main battery before you service the computer NOTE This computer contains an LCD panel manufactured by Sharp or Sam sung The display assembly bezel and the display assembly top cover are unique for each manufacturer s LCD panel When viewed from the back of the computer there is a notch on the lowerright corner of the hinged edge of the Samsung display assembly see Figu
8. seeFigure 18 3 Carefully disconnect the fan wire connector from the system board see Figure 19 Dell Latitude CS Portable Computers Service Manual 29 The female connector on the fan wire is keyed to fit into the male connector one way only 4 Remove the two M2 x 4 mm screws that secure the fan assembly to the bottom assembly 30 Dell Latitude CS Portable Computers Service Manual 1 LCD panel removal 15 M main battery release latch removal 23 removal 3 23 memory module cover removal 8 removal 8 microprocessor removal 29 P palmrest assembly removal 21 screws removal 19 R reserve battery removal 22 S screw identification and tightening 3 sockets memory module 8 status indicator panel removal 10 system board assembly Index 31 Index bottom assembly components 22 illustrated 22 D display assembly bezel removal 13 14 removal 11 F fan removal 29 field replaceable parts and assemblies illustrated 6 G grounding to dissipate static electricity 3 H hard disk drive assembly removal 7 K keyboard assembly removal 18 illustration 6 27 removal 6 ZIF connectors 5 T thermal cooling solution removal 24 tools 2 top memory module removal 9 touch pad removal 29 32 Dell Latitude CS Portable Computers Service Manual Printed in Ireland 8 R P N 0708R Rev A01 87 8 e Printed in the U S
9. A socket To install a microprocessor in a type B socket place the microprocessor in the socket and use a Phillips head or flat blade screwdriver to turn the cam clockwise 180 degrees so that the tab on the cam points toward the C closed position see Figure 20 type B socket X NOTE When replacing the microprocessor save the package material from the new microprocessor to repackage the old microprocessor for transport 17 Attach the hard disk drive EMI clips and the PC Card cover to the new system board assembly After replacing the system board assembly be sure to enter the system s service tag number into the BIOS of the replacement system board assembly Insert the diskette that accompanied the replacement system board assembly into the diskette drive and turn on the computer Follow the instructions on the display screen 28 Dell Latitude CS Portable Computers Service Manual open position microprocessor view window socket type A socket open position socket type B socket Figure 20 Microprocessor Removal Touch Pad 1 Remove the palmrest assembly see Figure 15 2 Remove the two M2 x 2 5 mm screws from the top of the touch pad see Figure 19 3 Carefully disconnect the ZIF connector to release the touch pad cable from the system board refer to Figure 4 4 Remove the touch pad Fan Assembly 1 Remove the palmrest assembly see Figure 15 2 Remove the thermal cooling solution
10. CD panel with a Samsung LCD 88 annaa 15 Replacing a Sharp LCD Panel with a Samsung LCD Panel or Replacing a Samsung LCD Panel with a Sharp LCD Panel 0n 16 Removing the Packing Bezel on a New Sharp LCD Panel 17 Packing a Defective Sharp LCD Panel for Return Shipping 17 Keyboard Assembly eee 18 Palmrest Assernbly u uen ave dun am esr bI bo ly Sea 19 Bottom Assembly subo NG eC ee a UR b p e es 22 Reserve Battery 22 Main Battery uat mta seats dpi Ebo betty a A ea dod 23 Main Battery Release 0 23 Thermal Cooling i ce i ss aret mb ARE RR Ros 24 System Board Assembly x hend scc ha Siero EX A erba ae Enc iet 26 Touch Bad 325 ed EE rr eR e eter das 29 Fan AsSembly uu leere bald RA Free UE 29 Index Figures Figure 1 Computer Orientation iius iccodu dll i used Peddrgen 1 Figure 2 Main Battery Assembly Removal 3 Figure 3 Screw 00 26e a pea quc Eudora b edd 3 Figure 4 Disconnecting an Interface Cable 5 Figure 5 Exploded View Computer 0 0 00 6 Figure 6 Hard Disk Drive Assembly 608 7 Figure 7 Bottom Memory Module Removal wu saa naks e 8 Figure 8 Top Memory Module Removal 9 Figure 9 Status Indicator Panel Removal 5 10 Figure 10 Display Assembly Removal 11 Figure 11 Sharp Display Assembly Bezel Removal 13 Figure 12 Samsung Display Assembly Bezel Removal
11. CS Portable Computers Service Manual 12 Display Assembly Bezel large rubber screw covers a OO M2 x 4 mm screws gap display assembly bezel small rubber screw covers 4 WA A 8 i LCD panel M2 x 4 mm screws 6 display assembly interface wire display assembly top cover inverter LLL display assembly Ez inverter wire H right hinge M2 x 4mm Figure 11 Sharp Display Assembly Bezel Removal NOTICE To avoid damaging the system board you must remove the main battery before you service the computer 1 Use a scribe to carefully pry the six rubber screw covers out of the six screw holes located along the top and bottom of the bezel on the front of the display assembly 2 Fora Sharp display assembly bezel remove the six M2 x 4 mm screws located at the top and bottom of the bezel on the front of the display assembly see Figure 11 For a Samsung display assembly bezel remove Dell Latitude CS Portable Computers Service Manual 13 large rubber screw covers 2 O display assembly bezel M2 x 4 mm screws LCD panel d a screv O T d tabs 2 N Samsung o SML identification Pag notch 71 Pd Pd screws 6 left hing inverter display assembly interface wire display assembly l inverter wire H display assembly top cover right hinge M2 x 4 mm Figure 12 Samsung Display Assembly Bezel Removal the six M2 x 4 mm
12. Dell Latitude CS Portable Computers Dell Latitude CS Portable Computers Information in this document is subject to change without notice 1999 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 DELL logo and Latitude are 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 tleir products Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own November 1999 P N 0708R Rev A01 X Contents 0 7 2 Preparing to Work Inside Your 60 2 Screw Identification and Tightening 3 os e ora a9 bore horn Sin RO wh dred Sard AA a Heise 4 5 Removing Field Replaceable Parts and Assemblies 6 Hard Disk Drive Assembly lille 7 Memory 00 gaan teense cett a A em tes 7 Bottom Memory Module 0 000000 2c A 8 Top Memory Module oaks Sad i Saas Re ee SOS 9 Display Assembly i a ces evade PAGA ay ere aW E D e tcs 11 Display Assembly Bezel 13 Display Assembly Latch 15 COD Panel M C R 15 Replacing a Sharp LCD panel with a Sharp LCD panel or Replacing a Samsung L
13. before you service the computer 1 Remove the status indicator panel 2 Remove the right plastic hinge cover by sliding it to the right of the display assembly 3 Remove the two M2 6 x 6 mm hinge screws that secure the right hinge to the bottom case see Figure 10 4 Remove the left plastic hinge cover by sliding it to the left of the display assembly Dell Latitude CS Portable Computers Service Manual 11 5 Remove the two M2 6 6 mm hinge screws that secure the left hinge to the bottom case Carefully disconnect the display assembly interface wire connector located on the left side of the display assembly from the system board The female connector attached to the display assembly interface wire is keyed to fit into the male connector one way only On some models the interface wire is routed under the left hinge To remove the wire from under the hinge remove all three M2 X 4 mm screws attaching the left hinge to the display assembly top cover see Fig ure 11 For models that do not route the interface wire under the left hinge the wire is removed without removing the left hinge Carefully disconnect the display assembly inverter wire connector located on the right side of the display assembly from the system board The female connector attached to the display assembly inverter wire is keyed to fit into the male connector one way only 8 Lift the display assembly from the bottom assembly Dell Latitude
14. board from the palmrest assembly by lifting the top edge of the keyboard up and sliding it toward the back of the computer 18 Dell Latitude CS Portable Computers Service Manual NOTE Five metal tabs retain the bottom of the keyboard in the palmrest assembly Remove the keyboard assembly seeFigure 13 5 To replace the keyboard assembly perform the following steps NOTICE Position the keyboard cable so it is not twisted when con nected to the system board Connect the keyboard cable tothe connector on the system board Fit the keyboard into place by sliding the five tabs on the bottom of the keyboard into the palmrest assembly Press on the upper left and right edges of the keyboard to snap the upper tabs into the palmrest Verify that the keyboard is correctly installed The keys should be flush with the left and right surfaces of the palmrest Reinstall the two black M2 x 16 mm screws Snap the status indicator panel in place 1 2 Palmrest Assembly e M2 x 4 mm screws 7 M2 x 2 5 mm screws 2n Cw Ez E H H M2x2 5mm M2x4 mm Figure 14 Removing the Palmrest Assembly Screws The palmrest assembly consists of the palmrest speaker microphone and power button with spring Dell Latitude CS Portable Computers Service Manual 19 X NOTICE avoid damaging the system board you must remove the main battery before you service the computer Remove the display assembly see Figure 10
15. ch Dell Latitude CS Portable Computers Service Manual and Sizes Hard Disk Drive Assembly M2 x4 mm 2 each Display Assembly including Bezel M2 x4 mm 6 each Sharp LCD and 8 each Samsung LCD Rubber Screw Covers 2 each large and 4 each small Thermal Cooling Solution M2 x 13 mm 4 each M2 x 4 mm 3 each Media Bay Port M2 x 2 5 mm 2 each 4 5 ZIF Connectors Some of the computer s interface connectors are zero insertion force ZIF connectors These connectors are not removable but they must be released to disconnect a cable from them see Figure 4 movable part of connector S C3 do not remove Figure 4 Disconnecting an Interface Cable NOTICE The ZIF connectors are fragile To avoid damage do not apply too much pressure to the movable part of the connector To disconnect an interface cable from a ZIF connector perform the following steps 1 Insert a small flat blade screwdriver under the movable part of the connector 2 Pull gently upward on the movable part of the connector until it releases the interface cable 3 Grasp the interface cable and pull it out of the connector To reconnect an interface cable to a ZIF connector perform the following steps 1 Usea small flat blade screwdriver to open the movable part of the ZIF connector 2 Orient the end of the interface cable with the ZIF connector and insert the end of the cable into t
16. crews 3 M2x4mm M2x 13mm Figure 18 Thermal Cooling Solution Removal 24 Dell Latitude CS Portable Computers Service Manual 25 NOTICE avoid damaging the system board you must remove the main battery before you service the computer NOTE The thermal cooling solution screw holes are labeled with screw sizes and numbered for the order that the screws should be removed or installed 1 Remove the keyboard assembly seeFigure 13 2 Remove the four M2 x 13 mm screws grouped around the section of the thermal cooling solution that covers the microprocessor see Figure 18 The screw holes are labeled on the thermal cooling solution in the order that the screws should be removed 1 through 4 3 Remove the three M2 x 4 mm screws in the corners of the thermal cooling solution The screw holes are labeled on the thermal cooling solution in the order that the screws should be removed 5 through 7 NOTICE To ensure maximum cooling for the microprocessor do not touch the heat transfer areas on the thermal cooling solution The oils in your skin reduce the heat transfer capability of the thermal pads Dell Latitude CS Portable Computers Service Manual System Board Assembly system board M2 X 4 mm screws 8 M2 6 X 6 mm screws 2 PC Card cover aM 7 mm sockets 2 j 5 mm sockets 4 fan assembl fan wire conne M2 X 2 5 screws 2 f s 8tx media bay port screws
17. dges of the microprocessor to lift it out of the socket If the socket is type B use a Phillips head or a flat blade screwdriver to turn the cam 180 degrees counterclockwise When the cam is in the open position a tab on the cam points toward the O open position see Figure 20 type B socket Grasp the edges of the microprocessor to lift it out of the socket NOTICE The microprocessor die the purple rectangular area must remain free of any scratches dust residue and fingerprints NOTICE Do not touch the microprocessor die or the microprocessor pins Pick up the microprocessor by the edges touching only the brown perimeter area surrounding the die NOTICE Do not drop the microprocessor from a distance of more than 6 inches and do not bend the microprocessor pins Replace the microprocessor if it is dropped from a distance of more than 6 inches or if the pins are bent more than 45 degrees 15 Remove the two M2 x 4 mm screws located on the back corners of the hard disk drive bay that attach the hard disk drive electromagnetic interference EMI clips to the system board 16 Install a new microprocessor To install a microprocessor in a type A socket place the microprocessor in the socket and use a flat blade screwdriver to turn the triangularshaped pointer on the cam clockwise 180 degrees toward the L locked position The view window displays a half circle when the cam is in the locked position see Figure 20 type
18. erate injury Dell Latitude CS Portable Computers Service Manual This manual provides instructions for removing and replacing field replaceable components assemblies and subassemblies in your Dell Latitude portable computer Unless otherwise noted each procedure in this manual assumes the following conditions The computer and any attached peripherals are turned off and the peripherals are disconnected from thel O panel on the back and right side of the computer e A part can be replaced by performing the removal procedure in reverse order When the display assembly is open nearly 180 degrees use a book or something similar to support it The angle of the display assembly with respect to the bottom case should never exceed 180 degrees Also when performing the procedures in this manual the locations or directions relative to the computer are as shown in Figure 1 unless otherwise specified back of computer left side right side front of computer Figure 1 Computer Orientation Dell Latitude CS Portable Computers Service Manual Recommended Tools Most of the procedures in this manual require the use of one or more of the following tools 0 and 1 magnetized Phillips head screwdrives e Small flat blade screwdriver e 5 mm socket wrench e 7 mm socket wrench Small plastic scribe Preparing to Work Inside Your Computer Before you start to work on the computer perform the following steps 1 Save any
19. erter Press down on the top of the inverter and then rotating the top up and slide the inverter out of the bottom clip 6 Remove the old display assembly interface wire LCD panel and display assembly inverter wire NOTICE The LCD panel is fragile Handle it carefully NOTE A new display assembly top cover inverter inverter wire and bezel are supplied in the service kit NOTICE Before removing the packing bezel from a new Sharp LCD panel read Removing the Packing Bezel on a New Sharp LCD Panel Samsung LCD panels do not require a packing bezel 7 Install the new display assembly interface wire LCD panel and inverter wire into the new top cover provided in the service kit 8 Attach the new bezel to the display assembly 9 Turn the computer over 10 Reinstall the main battery in the main battery compartment Installation of the new LCD panel is completed Removing the Packing Bezel on a New Sharp LCD Panel New Sharp LCD panels are shipped with a packing bezel to provide support and prevent damage Prepare the new Sharp LCD panel for installation in the display assembly by performing the following steps 1 Carefully peel the protective laminate film off of the LCD panel 2 Remove the top half of the packing bezel NOTICE The LCD panel is fragile Handle it carefully 3 Pull the bezel out from the LCD panel near the hook locations to release the LCD panel from the bottom half of the packing bezel The bottom
20. he connector 3 While holding the cable in place close the ZIF connector To ensure a firm connection make sure the ZIF connector is completely closed Dell Latitude CS Portable Computers Service Manual Removing Field Replaceable Parts and Assemblies display assembly keyboard TU left hinge cove E ed IS 4 status indicator panel j KID SITES SESS Ao i palmrest assembly right hinge cover thermal cooling solution system board bottom case assembly hard disk drive media bay port covei Figure 5 Exploded View Computer The following subsections provide instructions for removing and replacing field replaceable parts and assemblies Dell Latitude CS Portable Computers Service Manual 6 Hard Disk Drive Assembly bottom of computer M2 x 4mm d H hard disk drive door M2 x 4 mm Figure 6 Hard Disk Drive Assembly Removal NOTICE To avoid damaging the system board you must remove the main battery before you service the computer NOTICE The hard disk drive is very sensitive to shock Handle the assembly by its edges do not squeeze the top of the hard disk drive case and avoid dropping it NOTICE Make sure that the work surface is clean to prevent scratch ing the computer cover 1 Turn the computer over and remove the two M2 x 4 mm screws from the bottom of the hard disk drive door seeFigure 6 The drive is located on the left side of the computer w
21. hen the computer is turned over 2 Grasp the drive door slide it up and pull the drive out of the computer Memory Module Cover NOTICE To avoid damaging the system board you must remove the main battery before you service the computer NOTICE Make sure that the work surface is clean to prevent scratch ing the computer cover 1 Close the display and turn the computer upside down on a flat work surface 2 Remove the two M2 6 x 3 mm screws from the memory module cover and lift the cover up and out two tabs are located on the opposite side of the screw holes on the cover Dell Latitude CS Portable Computers Service Manual Bottom Memory Module memory module memory module lt N Socket o inner tabs 2 Figure 7 Bottom Memory Module Removal To remove the bottom memory module perform the following steps NOTICE To avoid damaging the system board you must remove the main battery before you service the computer NOTICE The 192 MB memory module does not fit in the bottom memory module socket 1 Remove the memory module cover 2 Ground yourself by touching the unpainted metal surface of an I O connector on the computer s back panel 3 Torelease the memory module from its socket carefully spread apart the inner tabs of the memory module socket just far enough for the memory module to disengage from the socket it should pop up slightly see Figure 7 4 Lift the memory module out
22. nector on the interface wire is keyed to fit into the male connector on the system board one way only NOTICE The LCD panel is fragile Handle it carefully 9 Lift the LCD panel out of the display assembly top cover 10 Install the display assembly interface wire LCD panel and inverter wire NOTICE Before removing the packing bezel from a new Sharp LCD panel read Removing the Packing Bezel on a New Sharp LCD Panel on page 17 Samsung LCD panels do not require a packing bezel 11 Install the display assembly top cover and display assembly bezel 12 Turn the computer over 13 Reinstall the main battery in the main battery compartment Installation of the new LCD panel is completed Replacing a Sharp LCD Panel with a Samsung LCD Panel or Replacing a Samsung LCD Panel with a Sharp LCD Panel 1 Ground yourself by touching the unpainted metal surface of the I O panel on the back of the computer 2 Remove the status indicator panel see Figure 9 3 Remove the display assembly see Figure 10 4 Remove the old display assembly top cover and display assembly bezel see Figure 11 for a Sharp LCD panel or Figure 12 for a Samsung LCD panel 5 Remove the inverter see Figure 11 for a Sharp LCD panel or Figure 12 for a Samsung LCD panel 16 Dell Latitude CS Portable Computers Service Manual If you have a Sharp or Samsung LCD panel the inverter is held in place by two plastic clips located at the top and bottom of the inv
23. nnector located on the back of the bottom assembly or use a flat blade screwdriver to remove these 7 mm sockets 74 Remove the eight M2 x 4 mm screws connecting the system board to the bottom assembly These eight M2 x 4 mm screws are marked with white circles around the screw head on the system board 8 Remove the two M2 6 x 6 mm screws connecting the system board to the bottom assembly These two M2 6 x 6 mm screws are marked with white circles around the screw head on the system board 9 Remove any PC Cards or plastic blanks from the PC Card slot 10 Verify that the PC Card ejectors do not extend from the PC Card slot 11 Carefully disconnect the fan wire connector from the system board see Figure 19 The female connector on the fan wire is keyed to fit into the male connector one way only 12 Lift the system board assembly out of the bottom assembly 13 Transfer the memory module s to the replacement system board assembly 14 Remove the microprocessor The microprocessor socket is either type A or type B see Figure 20 Dell Latitude CS Portable Computers Service Manual 27 If the socket is type A use a flat blade screwdriver to turn the cam 180 degrees counterclockwise When the cam is in the open position the triangularshaped pointer on the cam points toward the O open position and a view window on the lower right hand side of the cam displays a full circle see Figure 20 type A socket Grasp the e
24. of its socket To replace a memory module perform the following steps 1 Align the memory module s edge connector with the slot in the center of the memory module socket Memory modules are keyed or designed to fit into their sockets in only one direction The slots on the system board are notched so that the memory module can be firmly seated only one way 2 With the module at a 45 degree angle press the memory module s edge connector firmly into the memory module socket 3 Pivot the memory module down until it clicks into place 4 f you do not hear a click as each end of the memory module snaps into the tabs remove the memory module and reinstall it 8 Dell Latitude CS Portable Computers Service Manual 9 Top Memory Module Zs P AU memory modul AL inner tabs 2 SS IT r gt c y Figure 8 Top Memory Module Removal NOTICE To avoid damaging the system board you must remove the main battery before you service the computer Remove the status indicator panel Use a flat blade screwdriver to press in on the three tabs that secure the status indicator panel to the back panel of the computer see Figure 9 Remove the keyboard see Figure 13 Remove the thermal cooling solution seeFigure 18 Ground yourself by touching the unpainted metal surface of an I O connector on the computer s back panel To release the memory module from its socket carefully spread apart the inner tabs of the memor
25. on the back of the computer While you work periodically touch the I O panel to dissipate any static electricity that might harm components Screw Identification and Tightening The illustrations in the following removal procedures provide lengths of the correct screws for each procedure Figure 3 shows examples Match the actual screw to the illustration to check for correct length H H H H M2 x 16 mm M2 13 mm M2x4mm M2x2 5 mm M2 8x 3mm M2 6x 6mm Figure 3 Screw Identification NOTICE When reinstalling a screw you must use a screw of the cor rect length Otherwise you could damage the hardware Make sure that the screw is properly aligned with its corresponding hole and avoid overtightening Dell Latitude CS Portable Computers Service Manual When you are removing and replacing components photocopy the Table 1 placement mat as a tool to lay out and keep track of the component screws Table 1 Screw Placement Mat with Component Screw Counts Display Assembly Hinge to Bottom Case Assembly M2 6 x 6 mm 4 each Palmrest Assembly M2 x 2 5 mm 2 each palmrest top M2 x 4 mm 7 each computer bottom M2 x 2 5 mm 5 each battery bay PC Card Cover M2 x4 mm 4 each part of system board screws Memory Module Cover M2 6 3 mm 2 each Keyboard Assembly M2 x 16 mm 2 each System Board Assembly M2 x4 mm 8 each M2 6 x 6 mm 2 each Touch Pad M2 x 2 5 mm 2 ea
26. ork Inside Your Computer section found earlier in this manual for detailed instructions for removing the battery Main Battery Release Latch touch pad cable tension spring release button assembly main battery release latch 0 1 Figure 17 Main Battery Release Latch 1 Remove the status indicator panel see Figure 9 Remove the display assembly seeFigure 10 Remove the keyboard assembly seeFigure 13 2 3 4 Remove the palmrest assembly seeFigure 14 5 Remove the thermal cooling solution seeFigure 18 6 Carefully disconnect the touch pad cable from the ZIF connector on the system board see Figure 4 and Figure 17 Dell Latitude CS Portable Computers Service Manual 23 7 Grasp the top of the battery release latch and gently pull up to free it from the release button assembly which is located underneath the system board see Figure 17 The battery release latch is mounted on the back side of the battery compartment next to the system board assembly NOTICE When reinstalling the battery release latch connect the touch pad cable to the ZIF connector on the system board after installing the battery release latch 8 Unhook the small tension spring from the metal post to remove the battery release latch The spring attaches the right end of the battery release latch to a small metal post located next to the hard disk drive Thermal Cooling Solution thermal cooling solution M2 X 4 mm s
27. re 12 Close the LCD display assembly and view the back of the computer to identify the Samsung notch Replacing a Sharp LCD panel with a Sharp LCD panel or Replacing a Samsung LCD panel with a Samsung LCD panel 1 Ground yourself by touching the unpainted metal surface of the I O panel on the back of the computer 2 Remove the status indicator panel see Figure 9 3 Remove the display assembly see Figure 10 4 Remove the display assembly bezel see Figure 11 for a Sharp LCD panel or Figure 12 for a Samsung LCD panel 5 Remove the inverter see Figure 11 for a Sharp LCD panel or Figure 12 for a Samsung LCD panel If you have a Sharp or Samsung LCD panel the inverter is held in place by two plastic clips located at the top and bottom of the inverter Press down on the top of the inverter and then rotating the top up and slide the inverter out of the bottom clip Dell Latitude CS Portable Computers Service Manual 15 NOTICE Samsung LCD panels have two M2 x 4 mm screws located on the right side of the panel Remove these screws before rotating the panel 6 Rotate the top of the LCD panel away from the display assembly top cover 7 From the back side of the LCD panel carefully disconnect the display assembly interface cable connector 8 Disconnect the display assembly inverter wire connector from the bottom of the inverter see Figure 11 for a Sharp LCD panel or Figure 12 for a Samsung LCD panel The female con
28. work in progress and close all open application programs 2 Turn off the computer and any attached peripherals NOTE Make sure that the computer is turned off and not in suspend to X disk mode S2D If you cannot shut down the computer using its operating system press the power button for 4 seconds 3 If the computer is docked in a C Dock Expansion Station or C Port Advanced Port Replicator APR undock the computer 4 Disconnect the computer and any attached peripherals from their electrical outlets to reduce the potential for personal injury or shock Also disconnect any telephone or telecommunications lines from the computer 5 Remove the power cable 6 Disconnect all other external cables from the computer 74 Remove any installed PC Cards NOTICE Make sure that the work surface is clean to prevent scratch ing the computer cover NOTICE To avoid damaging the system board you must remove the main battery before you service the computer 8 Turn the computer over so the battery is on the lower right corner of the computer and remove the main battery assembly from the battery bay Slide the battery bay latch toward the right side of the computer to push the back side of the battery up out of the battery bay seeFigure 2 Dell Latitude CS Portable Computers Service Manual 2 3 battery latch Figure 2 Main Battery Assembly Removal 9 Ground yourself by touching the unpainted metal surface of the I O panel
29. y module socket just far enough for the memory module to disengage from the socket it should pop up slightly see Figure 8 Dell Latitude CS Portable Computers Service Manual 1 6 Lift the memory module out of its socket tabs 3 be e E Jo omo IOI Figure 9 Status Indicator Panel Removal To replace a memory module perform the following steps NOTICE The 192 MB memory module fits the top memory module socket only 1 Align the memory module s edge connector with the slot in the center of the memory module socket Memory modules are keyed or designed to fit into their sockets in only one direction The slots on the system board are notched so that the memory module can be firmly seated only one way 2 With the module at a 45 degree angle press the memory module s edge connector firmly into the memory module socket 3 Pivot the memory module down until it clicks into place 4 f you do not hear a click as each end of the memory module snaps into the tabs remove the memory module and reinstall it 10 Dell Latitude CS Portable Computers Service Manual Display Assembly display assembl M2 6 x 6 mm Screws iC display assembly interface wire left hinge cover lig display assembly inverter wire panel right hinge cove M2 6 x 6mm Figure 10 Display Assembly Removal NOTICE To avoid damaging the system board you must remove the battery
Download Pdf Manuals
Related Search