Dell C400 User Manual

Dell™ Latitude™ C400 Service ManualBefore You BeginSystem ComponentsKeyboardMemory Module and Modem Daughter CardHard DriveWireless Network AdapterDis

1 keyboard flex cable6. Use the pull tab to pull the keyboard flex cable up from its connector on the system board. The keyboard is now disconnected

1 keyboard securing tabs (5)4. Carefully rotate the keyboard back and fit it into the bottom case. Ensure that all five securing tabs are engaged in

Back to Contents PageMemory Module and Modem Daughter CardDell™ Latitude™ C400 Service Manual Removing the Memory Module/Modem Cover Removing the Me

Removing the Memory ModulesNOTICE: Disconnect the computer and any attached devices from electrical outlets, and remove the battery.NOTICE: To avoid E

NOTICE: The memory module must be inserted at a 45-degree angle to avoid damaging the connector.1. Align the notch in the memory module with the slot

2 pull tab3 boss4 modem connector5 modem cableReplacing the Modem Daughter Card1. Connect the modem cable to the modem daughter card. NOTICE: The con

Back to Contents PageHard DriveDell™ Latitude™ C400 Service Manual Removing the Hard Drive Replacing the Hard DriveRemoving the Hard Drive1. Save a

4. Slide the hard drive straight out of the computer. Replacing the Hard DriveNOTICE: Use firm and even pressure to slide the hard drive into place.

Back to Contents PageWireless Network AdapterDell™ Latitude™ C400 Service Manual Removing the Wireless Network Adapter Replacing the Wireless Networ

down into place.Back to Contents Page

Back to Contents PageBefore You BeginDell™ Latitude™ C400 Service Manual Preparing to Work Inside the Computer Recommended Tools Screw Identificati

Back to Contents PageDisplay Assembly and Display LatchDell™ Latitude™ C400 Service Manual Removing the Display Assembly Replacing the Display Latch

Display Assembly1 display-feed flex cable2 M2.5 x 12-mm screws (2)3 display-feed flex cable hold-down board4 pull tab7. Remove the two M2.5 x 12-mm s

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, an

Back to Contents PagePalm RestDell™ Latitude™ C400 Service Manual Removing the Palm Rest Replacing the Palm RestRemoving the Palm RestNOTICE: Discon

1 M2.5 x 6-mm screws (4)2 M2.6 x 1.8-mm screws (4)3 M2 x 4-mm screws (2)4 M2.5 x 6-mm screws (2)5. Remove the four M2.6 x 1.8-mm screws located insid

1 M2.5 x 6-mm screws (6)2 LED cable3 palm-rest flex cable9. Remove the six M2.5 x 6-mm screws that secure the palm rest to the system board. 10. Dis

Back to Contents PageCooling FanDell™ Latitude™ C400 Service Manual Removing the Cooling FanRemoving the Cooling FanNOTICE: Disconnect the computer a

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

Back to Contents PageReserve BatteryDell™ Latitude™ C400 Service Manual Removing the Reserve Battery Replacing the Reserve BatteryRemoving the Reser

1 reserve battery connector on system board2 reserve battery cable3 reserve battery5. Disconnect the reserve battery cable from the system board conn

5-mm nut driver 7-mm nut driver Needle-nose pliers Flash BIOS update program floppy disk or CD Computer Orientation1 back2 right3 front4 leftScrew Ide

Back to Contents PageFlashing the BIOSDell™ Latitude™ C400 Service ManualPerform the following steps to update the BIOS:1. Make sure that the AC adap

Back to Contents PageAudio BoardDell™ Latitude™ C400 Service Manual Removing the Audio Board Replacing the Audio BoardRemoving the Audio BoardNOTICE

1 M2 x 4-mm screws (2)2 audio board shield3 audio board5. Remove the two M2 x 4-mm screws from the audio board shield, and remove the shield. 6. Pul

Back to Contents PageSystem BoardDell™ Latitude™ C400 Service Manual Removing the System Board Replacing the System BoardRemoving the System BoardTh

1 fan2 reserve battery cable3 connector for fan extender cable4 hard-drive connector5 M2 x 4-mm screw (1)6 memory module socket7 guide pins (2)8 5-mm

After you have replaced the system board, insert the floppy disk or CD that accompanied the replacement system board intothe appropriate drive, and tu

Back to Contents PageBattery LatchDell™ Latitude™ C400 Service Manual Removing the Battery Latch Replacing the Battery LatchRemoving the Battery Lat

1 tension spring2 bottom case3 battery latch4 battery release-button tabsNOTICE: The tabs on the release button are plastic. When squeezing the tabs,

Back to Contents PagePin Assignments for I/O Connectors Dell™ Latitude™ C400 Service ManualSerial Connector USB ConnectorDocking Connector IDE Module

8 PD69 PD710 GND11 DOCK_SPKR12 DOCK_MIC13 DOCK_LINE14 DOCK_CDROM15 GND16 NC17 POWER_SW#18 QPCIEN#19 S1.6M_EN#20 DFDD/LPT#21 GND22 NC23 NC24 D_ACTLED25

Hard Drive Door:(1 each)Modem Daughter Card:(1 each)Keyboard:(4 each)Display Assembly:Display Bezel:(6 each)Rubber screw covers: 6 eachPalm Rest to Bo

48 DOCK_+DC_IN49 GND50 LOW_PWR98 +5VSUS99 NC100 NC148 NC149 +5VALW150 NC198 NC199 NC200 GND Video Connector Pin Signal1 RED2 GREEN3 BLUE4 NC5 GND6 GND

Pin Signal1 BAY_MODPRES#2 HDSEL#3 RDATA#4 WRPRT#5 WRDATA#6 INDEX#7 DSKCHG#8 1D6M_EN#9 SIDE_IOW#10 SIDED1511 SIDED1212 SIDED913 SIDE_CS3#14 SIDE_CS1#15

System Board:(1 each)Guide pins: 2 each5-mm hex nuts: 4 each7-mm hex nuts: 2 each Back to Contents Page

Back to Contents PageSystem ComponentsDell™ Latitude™ C400 Service ManualNOTICE: Only a certified service technician should perform repairs on your co

Back to Contents Page

Back to Contents PageKeyboardDell™ Latitude™ C400 Service Manual Removing the Keyboard Replacing the KeyboardRemoving the KeyboardNOTICE: Disconnect

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 hol