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Hard Drive : Dell Latitude C400 Service Manual

1 bottom of computer

2 M2.5 x 12-mm screw (1)

3 hard drive door

4. Slide the hard drive straight out of the computer.

Replacing the Hard Drive

NOTICE:

Use firm and even pressure to slide the hard drive into place. If you

force the hard drive into place using excessive force, you may damage the

connector.

1. Push the hard drive into the drive bay until it is fully seated in the bay.

2. Replace the M2.5 x 12-mm screw in the hard drive door.

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Summary of Contents for Latitude C400

Page 1: ... Audio Board System Board Battery Latch Pin Assignments for I O Connectors Notes Notices and Cautions NOTE A NOTE indicates important information that helps you make better use of your computer NOTICE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem CAUTION A CAUTION indicates a potential for property damage personal injury or death file...

Page 2: ...rporation 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 October 2001 Rev A00 file F Service 20Manuals Dell Latitude c400 index htm 2 of 2 2 28 2004 7 50 46 AM ...

Page 3: ...de the computer 1 Make sure that the work surface is clean to prevent scratching the computer cover 2 Save any work in progress and close all open application programs 3 Turn off the computer and all attached devices NOTE Make sure the computer is turned off and not in suspend to disk or hibernate mode If you cannot shut down the computer using the computer s operating system press and hold the po...

Page 4: ...ipate any static electricity while you work use a wrist grounding strap or periodically touch an unpainted metal surface 12 Handle components and cards with care Do not touch the components or contacts on a card Hold a card by it edges or by its metal mounting bracket Hold internal components by their edges not by their pins Recommended Tools The procedures in this manual require the following too...

Page 5: ...tification When you are removing and replacing components photocopy the placemat as a tool to lay out and keep track of the screws The placemat provides the number of screws and their sizes Screw Identification file F Service 20Manuals Dell Latitude c400 begin htm 3 of 6 2 28 2004 7 50 57 AM ...

Page 6: ...crew of the correct diameter and length Make sure that the screw is properly aligned with its corresponding hole and avoid overtightening Hard Drive Door 1 each Modem Daughter Card 1 each Keyboard 4 each Display Assembly file F Service 20Manuals Dell Latitude c400 begin htm 4 of 6 2 28 2004 7 50 57 AM ...

Page 7: ...play Bezel 6 each Rubber screw covers 6 each Palm Rest to Bottom Case Critical Component Shield 6 each Palm Rest to System Board 6 each Cooling Fan 3 each Audio Board 2 each file F Service 20Manuals Dell Latitude c400 begin htm 5 of 6 2 28 2004 7 50 57 AM ...

Page 8: ... Dell Latitude C400 Service Manual System Board 1 each Guide pins 2 each 5 mm hex nuts 4 each 7 mm hex nuts 2 each Back to Contents Page file F Service 20Manuals Dell Latitude c400 begin htm 6 of 6 2 28 2004 7 50 57 AM ...

Page 9: ...uld perform repairs on your computer Damage due to servicing that is not authorized by Dell is not covered by your warranty NOTICE Unless otherwise noted each procedure in this manual assumes that a part can be replaced by performing the removal procedure in reverse order System Components file F Service 20Manuals Dell Latitude c400 system htm 1 of 3 2 28 2004 7 50 58 AM ...

Page 10: ...mory module modem cover 2 center cover 9 battery 3 hard drive 10 audio card 4 cooling fan 11 audio card shield 5 reserve battery 12 critical component shield 6 system board 13 palm rest file F Service 20Manuals Dell Latitude c400 system htm 2 of 3 2 28 2004 7 50 58 AM ...

Page 11: ...System Components Dell Latitude C400 Service Manual 7 bottom case 14 keyboard Back to Contents Page file F Service 20Manuals Dell Latitude c400 system htm 3 of 3 2 28 2004 7 50 58 AM ...

Page 12: ...elf by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive NOTICE The key caps on the keyboard are fragile easily dislodged and time consuming to replace Be careful when removing and handling the keyboard 2 Turn the computer right side up and remov...

Page 13: ... a short ruler across the first row or two of keycaps and press on the straightedge instead of on the keycaps themselves c Insert a flat blade screwdriver into the slot While holding the screwdriver make your hand into a fist brace your knuckles against the keyboard and pry up the center cover d Repeat steps b and c for the right release slot located behind the F9 and F10 keys e Lift the center co...

Page 14: ...Pry up the keyboard locator tab lift the back edge of the keyboard slightly and then pull the keyboard a small distance toward the back of the computer to release the five securing tabs located across the front edge of the keyboard 5 Rotate the keyboard toward the front of the computer and place it face down on the palm rest file F Service 20Manuals Dell Latitude c400 keyboard htm 3 of 6 2 28 2004...

Page 15: ...l tab to pull the keyboard flex cable up from its connector on the system board The keyboard is now disconnected from the bottom case Replacing the Keyboard 1 Replace the hard drive 2 Place the keyboard face down on the palm rest with the keyboard flex cable file F Service 20Manuals Dell Latitude c400 keyboard htm 4 of 6 2 28 2004 7 50 59 AM ...

Page 16: ... proper flex cable connection a white locator line has been added near the end of the flex cable Press the cable into the connector until the white line disappears and hold it steady while you snap the flex cable connector down The white line may reappear after the connector is closed this should not indicate a problem with the connection NOTICE Position the keyboard flex cable so that it is not p...

Page 17: ... when viewed from above and slightly behind the front edge of the keyboard Press down on the left and right ALT keys to help control tab slot alignment When the keyboard appears to be completely seated confirm that the front edge of the keyboard is aligned with the edge of the palm rest before proceeding 5 Replace the four M2 x 4 mm screws at the back of the keyboard 6 Replace the center cover Bac...

Page 18: ...der the critical component shield To replace the memory module under the critical component shield perform the procedure for removing the palm rest up to and including removal of the critical component shield Then replace the 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 ...

Page 19: ...nect the computer and any attached devices from electrical outlets and remove the battery NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the memory module modem cover file F Service 20Manuals Dell Latitude c400 upgrades...

Page 20: ...nner metal tabs that secure the memory module 2 Use your fingertips to carefully spread apart the inner tabs on each end of the memory module socket The module should pop up Memory Module Removal 1 memory module socket 2 inner tabs 2 3 Lift the memory module out of its socket file F Service 20Manuals Dell Latitude c400 upgrades htm 3 of 6 2 28 2004 7 51 00 AM ...

Page 21: ...you do not hear the click remove the module and reinstall it 3 Replace the cover and tighten the two captive screws Removing the Modem Daughter Card NOTICE Disconnect the computer and any attached devices from electrical outlets and remove the battery NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing...

Page 22: ...disconnect the cable 3 Use the pull tab to pull the modem daughter card straight up out of its connector 4 Disconnect the modem cable from the modem daughter card Modem Daughter Card Removal 1 M2 x 4 mm screw 1 2 pull tab 3 boss 4 modem connector 5 modem cable file F Service 20Manuals Dell Latitude c400 upgrades htm 5 of 6 2 28 2004 7 51 00 AM ...

Page 23: ...ce the connections 2 Using the screw hole and the boss at the opposite corner of the daughter card to align the card press the card into its connector on the system board 3 Install the M2 x 4 mm screw that secures the modem to the system board 4 Replace the memory module modem cover and tighten the two captive screws Back to Contents Page file F Service 20Manuals Dell Latitude c400 upgrades htm 6 ...

Page 24: ... hard drive case and avoid dropping it NOTICE Read Preparing to Work Inside the Computer before performing the following procedure NOTICE To prevent data loss turn off your computer before removing the hard drive Do not remove the hard drive while the computer is on in standby mode or in hibernate mode CAUTION If you remove the hard drive from the computer when the drive is hot do not touch the me...

Page 25: ... Drive NOTICE Use firm and even pressure to slide the hard drive into place If you force the hard drive into place using excessive force you may damage the connector 1 Push the hard drive into the drive bay until it is fully seated in the bay 2 Replace the M2 5 x 12 mm screw in the hard drive door file F Service 20Manuals Dell Latitude c400 hdd htm 2 of 3 2 28 2004 7 51 00 AM ...

Page 26: ...Hard Drive Dell Latitude C400 Service Manual Back to Contents Page file F Service 20Manuals Dell Latitude c400 hdd htm 3 of 3 2 28 2004 7 51 00 AM ...

Page 27: ...t 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 touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Remove the keyboard Wireless Network Adapter file F Serv...

Page 28: ...card 4 Spread the two metal securing tabs apart and pull the card from its socket Replacing the Wireless Network Adapter The wireless card is keyed to the connector Make sure the card is fully seated in the socket before attempting to pivot it down into place Back to Contents Page file F Service 20Manuals Dell Latitude c400 wireless htm 2 of 3 2 28 2004 7 51 01 AM ...

Page 29: ...Wireless Network Adapter Dell Latitude C400 Service Manual file F Service 20Manuals Dell Latitude c400 wireless htm 3 of 3 2 28 2004 7 51 01 AM ...

Page 30: ...ces from electrical outlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the battery 2 Remove the hard drive 3 Remove the center cover 4 Close the display 5 Turn the computer over an...

Page 31: ...Latch Dell Latitude C400 Service Manual 1 M2 5 x 6 mm screws 2 6 Turn the computer right side up and open the display 180 degrees Display Assembly file F Service 20Manuals Dell Latitude c400 display htm 2 of 5 2 28 2004 7 51 02 AM ...

Page 32: ...pull tab 7 Remove the two M2 5 x 12 mm screws from the display feed flex cable hold down board 8 Use the pull tab to disconnect the display feed flex cable from its connector on the system board 9 Move the display assembly to an upright position and pull it up out of the computer file F Service 20Manuals Dell Latitude c400 display htm 3 of 5 2 28 2004 7 51 02 AM ...

Page 33: ...or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure To replace the display latch you must replace the whole bezel 1 Remove the battery 2 Remove the hard drive 3 Open the display 180 degrees and remove the six rubber screw covers and the six M2 x 4 mm screws that secure the bezel Bezel Removal 1 bezel ...

Page 34: ... screw 6 4 display assembly 4 Use a small flat blade screwdriver to carefully pry around the perimeter of the bezel until the bezel separates from the display assembly 5 Install the new bezel Back to Contents Page file F Service 20Manuals Dell Latitude c400 display htm 5 of 5 2 28 2004 7 51 02 AM ...

Page 35: ...ng an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Remove the keyboard NOTICE You must remove the display assembly before you remove the palm rest the display hinges pass through the back of the palm rest 3 Remove the display assembly 4 Turn the computer over and remove the four M2 5 x ...

Page 36: ...s located inside the battery bay 6 Remove the two M2 5 x 6 mm screws located near the service tag at the back edge of the computer 7 Turn the computer over and remove the two M2 x 4 mm screws located above the serial docking and video connectors on the back panel Critical Component Shield file F Service 20Manuals Dell Latitude c400 palmrest htm 2 of 5 2 28 2004 7 51 03 AM ...

Page 37: ...he six M2 x 4 mm screws one of which may be captive that secure the critical component shield to the system board and lift the shield away NOTE At this point the memory module under the critical component shield can be replaced Palm Rest Removal file F Service 20Manuals Dell Latitude c400 palmrest htm 3 of 5 2 28 2004 7 51 03 AM ...

Page 38: ...x M2 5 x 6 mm screws that secure the palm rest to the system board 10 Disconnect the LED and palm rest flex cables 11 If a Mini PCI wireless card is installed disconnect the two wireless cables from the card 12 Lift the palm rest away file F Service 20Manuals Dell Latitude c400 palmrest htm 4 of 5 2 28 2004 7 51 03 AM ...

Page 39: ...cing the LED and palm rest flex cables press the cable into the connector until the white line disappears and hold it steady while you snap the flex cable connector down The white line may reappear after the connector is closed this should not indicate a problem with the connection Back to Contents Page file F Service 20Manuals Dell Latitude c400 palmrest htm 5 of 5 2 28 2004 7 51 03 AM ...

Page 40: ... remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Remove the keyboard 3 Remove the display assembly 4 Remove the palm rest Cooling Fan Removal file F Service 20Manuals Dell ...

Page 41: ... fan extender cable 5 Remove the fan cable from the fan extender cable that runs under the system board 6 Remove the three M2 5 x 6 mm screws that secure the cooling fan 7 Lift out the cooling fan Back to Contents Page file F Service 20Manuals Dell Latitude c400 fan htm 2 of 3 2 28 2004 7 51 03 AM ...

Page 42: ...Cooling Fan Dell Latitude C400 Service Manual file F Service 20Manuals Dell Latitude c400 fan htm 3 of 3 2 28 2004 7 51 03 AM ...

Page 43: ... in the BIOS If possible make a copy of this information before you remove the reserve battery 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 touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before perfor...

Page 44: ... battery cable from the system board connector 6 Pry the reserve battery free from the system board The reserve battery is attached to the system board with a piece of adhesive tape 7 Remove any remnants of the adhesive tape from the system board Replacing the Reserve Battery file F Service 20Manuals Dell Latitude c400 rsrvbatt htm 2 of 3 2 28 2004 7 51 04 AM ...

Page 45: ...onnector 2 Press the reserve battery into place on the system board 3 Update the BIOS using a flash BIOS update program floppy disk or CD For instructions on how to flash the BIOS see Flashing the BIOS Back to Contents Page file F Service 20Manuals Dell Latitude c400 rsrvbatt htm 3 of 3 2 28 2004 7 51 04 AM ...

Page 46: ...ppy disk or CD into the appropriate drive and press F6 and then press F4 The computer displays the following message on the screen Failure override Processor update failure Reload current BIOS Strike the F1 key to continue F2 to run the setup utility 4 Press F1 The computer continues to boot and updates the new BIOS 5 Press F2 to enter the system setup program and reset the boot sequence with the ...

Page 47: ...Flashing the BIOS Dell Latitude C400 Service Manual Back to Contents Page file F Service 20Manuals Dell Latitude c400 bios htm 2 of 2 2 28 2004 7 51 04 AM ...

Page 48: ...utlets and remove any installed batteries NOTICE To avoid ESD ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the hard drive 2 Remove the keyboard 3 Remove the display assembly 4 Remove the palm rest Audio Board Removal file F Service 20Man...

Page 49: ...screws 2 2 audio board shield 3 audio board 5 Remove the two M2 x 4 mm screws from the audio board shield and remove the shield 6 Pull the audio board up out of its connector file F Service 20Manuals Dell Latitude c400 audio_bd htm 2 of 3 2 28 2004 7 51 05 AM ...

Page 50: ...n the board with the holes in the bosses Then as you press the audio board into the connector sight sideways between the audio board and the system board to ensure that all pins on the audio board connector are headed correctly into the system board connector Back to Contents Page file F Service 20Manuals Dell Latitude c400 audio_bd htm 3 of 3 2 28 2004 7 51 05 AM ...

Page 51: ...r 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 touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the PC Card or plastic blank if present from the PC Card slot 2 Remove the hard drive ...

Page 52: ...2 x 4 mm screw 1 6 memory module socket 7 guide pins 2 8 5 mm hex nuts 4 9 7 mm hex nuts 2 10 Remove the four 5 mm hex nuts near each end of the serial and video connectors 11 Use a flat blade screwdriver to remove the two 7 mm hex nuts near each end of the docking connector file F Service 20Manuals Dell Latitude c400 sysboard htm 2 of 3 2 28 2004 7 51 06 AM ...

Page 53: ...hile replacing the system board pull the fan extender cable aside to avoid trapping it beneath the system board After replacing the system board route the cable between the hard drive connector and the internal memory socket After you have replaced the system board insert the floppy disk or CD that accompanied the replacement system board into the appropriate drive and turn on the computer Follow ...

Page 54: ...r by touching an unpainted metal surface on the computer NOTICE Read Preparing to Work Inside the Computer before performing the following procedure 1 Remove the PC Card or plastic blank if present from the PC Card slot 2 Remove the hard drive 3 Remove the keyboard 4 Remove the display assembly 5 Remove the palm rest 6 Remove the wireless network adapter if present 7 Remove the modem daughter card...

Page 55: ...l not to break them 11 On the inside of the bottom case use needle nose pliers to gently squeeze the two release button tabs together and push the tabs down through the hole catching the release button on the outside of the bottom case 12 To remove the battery latch unhook the small tension spring located on the metal post next to the hard drive file F Service 20Manuals Dell Latitude c400 batlatch...

Page 56: ...and align the slot in the battery latch with the release button slot in the bottom case 3 Holding the battery latch in place press the release button tabs through the underside of the bottom case and into the battery latch until the tabs snap into place 4 Replace the tension spring Back to Contents Page file F Service 20Manuals Dell Latitude c400 batlatch htm 3 of 3 2 28 2004 7 51 06 AM ...

Page 57: ...for I O Connectors Dell Latitude C400 Service Manual Serial Connector USB Connector Docking Connector IDE Module Bay Connector Video Connector Serial Connector Pin Signal 1 DCD 2 RXDA 3 TXDA 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 RI file F Service 20Manuals Dell Latitude c400 pinouts htm 1 of 7 2 28 2004 7 51 08 AM ...

Page 58: ... DOCK_SCLK 65 DOCK_LRCK 66 DOCK_MCLK 67 GND 68 12V 69 AFD 70 ERROR 71 ACK Pin Signal 101 VGA_GRN 102 GND 103 VGA_RED 104 GND 105 VGA_BLU 106 DOCK_SD MODE 107 D_IRTX 108 D_IRRX 109 GND 110 SPIRQB 111 SPIRQC 112 DAT_DDC2 113 CLK_DDC2 114 SPAR 115 SPME 116 GND 117 SSERR 118 SPERR 119 SLOCK 120 SSTOP 121 GND Pin Signal 151 GND 152 CLK_SPCI 153 GND 154 SAD0 155 SAD1 156 SAD2 157 SAD3 158 SAD4 159 SAD5 ...

Page 59: ... 86 CLK_DOCKKBD 87 GND 88 RI0 89 CTS0 90 RTS0 91 DSR0 92 GND 93 DTR0 94 TXD0 95 RXD0 96 DCD0 97 NC 98 5VSUS 99 NC 100 NC 122 SDEVSEL 123 STRDY 124 SIRDY 125 SFRAME 126 SCLKRUN 127 GND 128 SGNTA 129 SREQA 130 SGNT0 131 SREQ0 132 SPCIRST 133 SH1SEL 134 GND 135 SWRPRT 136 SDSKCHG DRQ 137 SDIR 138 STRK0 139 SSTEP 140 SDRV1 141 GND 142 SMTR1 143 SWRDATA 144 SWGATE 145 SRDATA 146 SINDEX 147 GND 148 NC 1...

Page 60: ... 49 GND 50 LOW_PWR Video Connector Pin Signal 1 RED 2 GREEN 3 BLUE 4 NC 5 GND 6 GND 7 GND 8 GND Pin Signal 9 CRT_VCC 10 GND 11 NC 12 DAT_DDC2 13 HSYNC 14 VSYNC 15 CLK_DDC2 USB Connector file F Service 20Manuals Dell Latitude c400 pinouts htm 4 of 7 2 28 2004 7 51 08 AM ...

Page 61: ...Pin Signal 1 VCC 2 DATA 3 DATA 4 GROUND IDE Module Bay Connector Pin Signal 1 BAY_MODPRES 2 HDSEL 3 RDATA 4 WRPRT 5 WRDATA Pin Signal 35 WGATE 36 GND 37 MTR0 38 STEP 39 DRV0 40 GND 41 DIR file F Service 20Manuals Dell Latitude c400 pinouts htm 5 of 7 2 28 2004 7 51 08 AM ...

Page 62: ...MOD 26 SIDE_DACK 27 5VMOD 28 SIDE_IOR 29 5VMOD 30 SIDED14 31 5VMOD 32 SIDED11 33 5VMOD 34 MOD_CD_R 42 TRKO 43 BAY_CD_FDD 44 GND 45 SIDED1 46 SIDED4 47 SIDED7 48 GND 49 SIDEIORDY 50 GND 51 SIDE_DREQ 52 GND 53 SIDED13 54 SIDED10 55 IDE_RST_MOD_5V 56 GND 57 SIDEACT 58 SIDE_A1 59 SIDE_A0 60 GND 61 SIDE_CSEL_SEC 62 SIDED2 63 SIDED5 64 GND 65 SIDED8 66 MOD_CL_L 67 CDGND 68 BAY_MODPRES file F Service 20M...

Page 63: ...Pin Assignments for I O Connectors Dell Latitude C400 Service Manual Back to Contents Page file F Service 20Manuals Dell Latitude c400 pinouts htm 7 of 7 2 28 2004 7 51 08 AM ...

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