Dell Latitude CPt S, Service Manual

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Page 5: ...r 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 their products Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own February...

Page 6: ... Drive DVD ROM Drive CD RW Drive SuperDisk LS 120 Drive Battery or Travel Module 12 Memory Module Cover 12 Removing the Memory Module Cover 12 Memory Modules 13 Removing the Memory Modules 13 Replacing the Memory Modules 13 Keyboard Assembly 14 Removing the Keyboard Assembly 14 Replacing the Keyboard Assembly 16 Microprocessor Module 18 Removing the Microprocessor Module 18 Replacing the Microproc...

Page 7: ...ssembly 36 Module Latch Assemblies 37 Figure 1 Computer Orientation 1 Figure 2 Main Battery Removal 3 Figure 3 Screw Identification 3 Figure 4 Disconnecting a Cable from an Interface Connector 5 Figure 5 Exploded View Computer 10 Figure 6 Hard Disk Drive Assembly Removal 11 Figure 7 Modular Bay Device Removal 12 Figure 8 Memory Module Removal 13 Figure 9 Removing the Keyboard Assembly Screws 14 Fi...

Page 8: ...33 Figure 22 System Board Assembly 35 Figure 23 Thermal Cooling Assembly Removal 36 Figure 24 Module Latch Assemblies Removal 37 Figure 25 Left Module Latch and Spring 38 Table 1 Screw Placement Mat With Component Screw Counts and Sizes 4 Table 2 Parts and Assemblies 6 ...

Page 9: ...ll provides the User s Guide for troubleshooting procedures and instructions on using the Dell Diagnostics to test the computer system 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...

Page 10: ...rt can be replaced by performing the removal procedure in reverse order It is recommended that you use a book or something similar to support the display assembly when it is open nearly 180 degrees The angle of the display assembly with respect to the bottom case should never be allowed to exceed 180 degrees Also when performing the procedures in this manual the locations or directions relative to...

Page 11: ...mode If you cannot shut down the computer using the com puter s operating system press and hold the power button for 4 seconds 3 If the computer is docked in a C Dock Family Expansion Station or C Port Family 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...

Page 12: ...g the unpainted metal surface of the I O panel on the back of the computer While you work periodically touch the I O panel to dissipate any static electricity that might harm components The illustrations in the following removal procedures provide the correct screw length as part of the screw s label A graphic for that length screw is also included in the illustration Examples are shown in Figure ...

Page 13: ...4 each Plastic Screw Covers 2 each Display Assembly Bezel M2 5 x 4 6 each 14 1 Inch Display Assembly LCD to Top Cover M2 0 x 3 6 each 12 1 Inch Display Assembly LCD to Top Cover M3 0 x 5 4 each 12 1 Inch Display Assembly Inverter M3 0 x 3 3 each Palmrest Assembly M2 5 x 20 5 each System Board Assembly M2 5 x 4 2 each w o modem assembly M2 5 x 4 1 each M2 5 x 10 1 each w modem assembly Microprocess...

Page 14: ... of the connector 2 Push gently sideways 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 1 Use a 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 the connector 3 While holding the cable ...

Page 15: ...US Customer kit main battery CUS BTRY 14 4V 8CELL LITH CUS BTRY 9 6V 8CELL NiMH option for CPt S Series only 2 Main battery BTRY 53WHR 14 4V 8CELL LITH BTRY MAIN 9 6V 8 NIMH option for CPt S Series only Diskette drive CUS SUBASSY FD F3 INT EXT 7 LS 120 drive subassembly CUS SUBASSY VAS LS120 120MB F3 7 CD ROM drive CUS CD 650M I 24X zzz 7 CD RW ROM drive CUS CD RW 650M I zzz 7 DVD ROM drive SUBASS...

Page 16: ...onal KYBD 87 US INT D PTG EMEA Keyboard screws 7 SCR M2 5X10 PHH LP ZPS 9 Substitute the number of keys for nn and the specific language for iiii 0 14 1 inch LCD display LCD TFT 14 1 zzz 14 0 12 1 inch LCD display LCD TFT 12 1 zzz 16 0 12 1 inch LCD display panel inverter INVRTR LCD 12 1 zzz 16 18 1 14 1 inch display top cover ASSY CVR TOP LCD TFT 14 1 14 14 1 inch display bezel ASSY BZL LCD TFT 1...

Page 17: ...lay latch assembly ASSY LATCH SPR DIS 14 16 Bottom assembly ASSY CVR BTM BASE PLSTC CH ST 22 Internal Modem installed MOD MDM INT NBK CH ST 21 Modem Cable Kit KIT CBL PHONE 4P RJ11 MOM Internal Modem MDM INT NBK CHRL ST Modem Screw SCR M2 5X15 KSH MS BCS W WSHR Internal Modem not installed MOD NO MDM INT NBK CH ST Modem Screw SCR M2 5X4 RND MS NPL W WSHR Case Plug PLUG PLSTC MDM CH ST Customer kit...

Page 18: ...bly ASSY PWA ENGINE Main system board PWA PLN 0M NB Exhaust fan and cable FAN 25X25X10 Thermal cooling assembly SVC SUBASSY HTSNK CPU HYB Microprocessor Service Kit SVC PRM PCA 12 Microprocessor shield thermal cooling assembly arm screw SCR M2X3 PHH LP ZPS 12 Thermal cooling assembly SCR M2 5X4 PHH LP ZPS 23 System board assembly SCR M2 5X4 PHH LP ZPS 22 0 Microprocessor shield ASSY SHLD EMI PRC M...

Page 19: ... subsections provide instructions for removing and replacing field replaceable parts and assemblies display assembly keyboard palmrest assembly main battery modular bay device bottom case assembly system board hard disk drive internal modem may not apply to your system case plug for modem ...

Page 20: ...er of the hard disk drive door see Figure 6 The drive is on the left side of the computer 3 Slide the drive door up and pull the drive assembly out of the computer 1 Push the drive assembly into the opening on the left side of the computer 2 Slide the drive door down until it aligns with the cover 3 Turn the computer over and replace the 5 mm screw on the drive door bottom of computer hard disk dr...

Page 21: ... icon Keep holding the latch open while pulling the device out of the modular bay with the other hand see Figure 7 1 Remove the main battery and secondary battery if present 2 Close the display and turn the computer upside down on a flat work surface 3 Release the memory module cover Insert a flat blade screwdriver under the indentation in the bottom case assembly and lift the cover latch lock ...

Page 22: ...If you only have one memory module install it in the DIMM A socket NOTES 192 MB memory modules are designed for either the socket labeled DIMM A or the socket labeled DIMM B they are not interchangeable Be sure that the memory module is inserted with the double stacked memory chips facing you A 192 MB memory module inserted with the double stacked memory chips facing down does not fit properly in ...

Page 23: ...edge connector firmly into the memory module socket 3 Pivot the memory module down until it clicks into place If you do not hear a click as each end of the memory module snaps into the tabs remove the memory module and reinstall it 4 Replace the memory module cover 1 Remove the main battery and secondary battery if present 2 Close the display assembly and turn the computer upside down on a flat wo...

Page 24: ...open the display 5 5 Release the keyboard from the palmrest assembly by inserting a small flat blade screwdriver under the edge of the blank key see Figure 10 and lift the right edge of the keyboard 7 6 6 Lift the keyboard out of the palmrest 7 Rotate the keyboard over the left edge of the computer see Figure 11 8 Rest the key face of the keyboard on the left side of the computer keyboard scallope...

Page 25: ...move the keyboard assembly 1 Place the keyboard on the left side of the computer with the keys face down see Figure 11 2 Connect the track stick cable to the ZIF connector Ensure that the contact side of this cable is face down when you insert the cable into the track stick ZIF interface connector 3 Connect the keyboard cable to the connector on the system board Ensure that the contact side of thi...

Page 26: ...wer the keyboard into the palmrest 5 To push the keyboard down press on the blank key located below the right Shift key 6 Check that the keyboard is correctly installed The keys should be flush with the left and right surfaces of the palmrest 7 Carefully turn the computer over and reinstall the seven 10 mm screws Start by installing the outermost screws on the left and right sides of the computer ...

Page 27: ...ocessor shield securing the thermal cooling assembly to the microprocessor module see Figure 12 4 Loosen the three captive screws securing the microprocessor shield to the microprocessor module 3 mm screws 2 microprocessor module microprocessor shield white marks on the microprocessor board 2 captive screws 3 thermal cooling assembly arm M2 0x3 4 mm screw 1 shield brace may not apply to your syste...

Page 28: ...ess down firmly on the metal plate that is directly over the connector When the microprocessor module is fully 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 2 To ensure the microprocessor module is fully seated apply pressure over the corner without the mounting screw hole NOTE If your syste...

Page 29: ...ee Figure 13 4 Open the display and disconnect the LCD flex cable from the connector on the system board by pulling the connector straight up 5 Lift the display assembly from the bottom case assembly Pry the hinge cover loose at the seam from the snap tabs on the bottom assembly see Figure 13 NOTE Always remove and replace the LCD panel as a complete assembly 4 mm screws 3 LCD flex cable display a...

Page 30: ...s located at the top of the bezel on the front of the display assembly 2 Remove the four 4 mm screws located at the top of the bezel on the front of the display assembly see Figure 14 LCD panel display assembly top cover LCD flex cable 4 mm screws 6 bezel latch rubber screw covers 4 plastic screw covers 2 3 mm screws 6 display assembly bezel hinge cover M2 0x3 M2 5x4 plastic tabs 6 ...

Page 31: ...anel see Figure 14 3 Lift and rotate the top of the LCD panel out of the top cover Disconnect the ZIF interface connector and the display assembly interface cable connector 4 Lift the LCD panel out of the top cover 1 Remove the LCD panel 2 Turn the display assembly upside down on a flat work surface 3 Remove the 4 mm screw securing the metal cable clip to the left hinge of the display assembly top...

Page 32: ...ade screwdriver see Figure 15 8 9 3 Install the new flex cable that accompanied the replacement LCD display 4 Pry the hinge cover assembly apart from the display assembly allowing just enough space for the flex cable to pass through the opening 5 Slide the cable through the opening 6 Attach the flex cable retaining clip to the bottom of the hinge cover located at the bottom of the display assembly...

Page 33: ...in the bottom of the top cover and elevate the top of the panel with your hand 2 Carefully connect the LCD flex cable to the connector on the left edge of the LCD panel Do not force the LCD flex cable into the connector If you have trouble check to make sure the LCD flex cable is aligned correctly and try again 3 Lay the LCD panel in the top cover 4 Reinstall the six 3 mm screws securing the LCD p...

Page 34: ...he connector on the inverter 3 Lift the LCD panel and carefully disconnect the flex cable from the connector on the left edge of the LCD panel 4 Remove the LCD panel from the top cover 4 mm screws 6 rubber screw covers 4 plastic screw covers 2 latch LCD panel display assembly top cover LCD flex cable inverter back light plug 5 mm screws 4 3 mm screws 3 display assembly bezel M3 0x3 M2 5x4 M3 0x5 Z...

Page 35: ...ay assembly 4 Pry the hinge cover assembly apart from the display assembly allowing just enough space for the flex cable to pass through the opening 5 Slide the cable through the opening 1 Pry the hinge cover assembly apart from the display assembly allowing just enough space for the flex cable to pass through the opening 2 Slide the cable through the opening 3 Attach the flex cable clip to the bo...

Page 36: ... printed on the cable see Figure 17 If you are installing a Torisan LCD panel fold the cable at the crease so the word Torisan is facing up If you are installing a Sharp LCD panel fold the cable at the crease so the word Sharp is facing up 3 1 To replace the 12 1 inch display LCD panel inverter perform the following steps 1 Find the manufacturer s name on the back of the LCD panel that is to be in...

Page 37: ...lacing the 12 1 Inch LCD Flex Cable 3 Verify that the inverter jumpers are set to accommodate the LCD panel being installed For more information see Replacing the 12 1 Inch LCD Panel Inverter 4 Place the bottom edge of the LCD panel in the bottom of the top cover and elevate the top of the panel with your hand 5 Carefully connect the LCD flex cable to the connector on the left edge of the LCD pane...

Page 38: ...not in the connector correctly Pull the plug out turn the plug over and reinsert it into the connector 8 Reinstall the four 5 mm screws to secure the LCD panel to the top cover 1 Remove the main battery and secondary battery if present 2 Remove the device from the modular bay if present 3 Remove the display assembly 4 Remove the LCD panel 5 Remove the display assembly bezel latch by unsnapping the...

Page 39: ...vice Manual The palmrest assembly consists of the touch pad and the palmrest 5 1 Remove the main battery and secondary battery if present 2 Remove the device from the modular bay if present 3 Remove the keyboard 4 Remove the display assembly 20 mm screws 5 M2 5x20 ...

Page 40: ...ese screws labeled with a circle P are located underneath the front edge of the computer see Figure 19 7 Turn the computer right side up on the work surface 8 Disconnect the palmrest flex cable from the touch pad connector on the system board see Figure 20 7 9 Carefully remove the palmrest assembly from the bottom case assembly see Figure 20 palmrest assembly touch pad connector bottom case assemb...

Page 41: ...t the palmrest bracket and turn it over taking care not to twist the touch pad cable 9 Disconnect the reserve battery cable from the connector on the palmrest bracket 10 Remove the reserve battery from the palmrest bracket as follows a Pry the reserve battery free from the foam pad b Remove the remnants of the foam pad from the palmrest bracket NOTES When you replace the reserve battery first conn...

Page 42: ...ve the keyboard assembly 3 Remove the display assembly 4 Remove the palmrest assembly 5 Remove the 10 mm screw and washer securing the modem assembly see Figure 21 1 Press the RJ11 connector of the modem assembly into the hole in the bot tom case assembly 2 Carefully align and press the modem into the system board connector 3 Replace the internal modem 10 mm screw and washer see Figure 21 10 mm sc...

Page 43: ...that all PC Cards or plastic blanks are removed from the PC Card slot 8 Verify that the PC Card ejectors do not extend from the PC Card slot 9 Remove the two screws securing the system board assembly see Figure 22 Locate and remove the 4 mm screw with captive washer on the far left side of the computer between the hard disk drive assembly and the PC Card slot Locate and remove the 4 mm screw with ...

Page 44: ...he replacement system board assembly 5 Replace the modular bay devices and any PC Cards or plastic blanks in the PC Card slot 6 Insert the diskette or CD ROM that accompanied the replacement system board assembly into the appropriate drive and turn on the computer Follow the instructions on the display screen NOTE After replacing the system board assembly be sure to enter the sys tem s service tag...

Page 45: ...ly 5 Remove the palmrest assembly 6 Remove the microprocessor module 7 Remove the modem if present 8 Remove the system board assembly 9 Disconnect the exhaust fan power cable from the connector on the system board 10 Remove the two 4 mm screws securing the thermal cooling assembly and exhaust fan and then remove the thermal cooling assembly and exhaust fan see Figure 23 4 mm screws 2 thermal cooli...

Page 46: ... Remove the main battery and secondary battery if present 2 Remove the device from the modular bay 3 Remove the keyboard assembly 4 Remove the display assembly 5 Remove the palmrest assembly module latches 2 springs 2 sliders 2 module latch button 2 bottom case assembly location of snap tabs 2 ...

Page 47: ...o the slider on the module latch and reinstall the module latch into the holding features on the inside of the case b Ensure that the slider is inserted in its respective hole that the side of the latch with the two bumps is facing the back of the case and that the surface with the wear ribs is facing the bottom of the case see Figure 25 7 Snap in the new latch button from the bottom of the base m...

Page 48: ... bay removal 12 battery reserve removal 32 CD ROM drive removal 12 computer exploded view 10 working inside 2 diskette drive removal 12 display assembly bezel removal 21 removal 20 display assembly latch removal 29 display panel 12 1 inch LCD removal 25 replacement 28 field replaceable parts and assemblies illustrated 10 list of 6 flex cable 12 1 inch LCD removal 26 replacement 26 flex cable 14 1 ...

Page 49: ...moval 13 memory module cover removal 12 microprocessor module removal 18 modular bay devices removal 12 module latch assemblies removal 37 palmrest assembly removal 30 reserve battery removal 32 screw identification and tightening 3 sockets memory module 13 SuperDisk LS 120 drive removal 12 system board assembly removal 18 thermal cooling assembly removal 36 tools 2 travel module removal 12 ZIF co...

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