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Manual Dell C400

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  • Dell C400 - page 1

    Dell™ Latitude™ C400 Service Manual Before You Begin System Components Keyboard Memory Module and Modem Daughter Card Hard Drive Wireless Network Adapter Display Assembly and Display Latch Palm Rest Cooling Fan Reserve Battery Flashing the BIOS Audio Board System Board Battery Latch Pin Assignments for I/O Connectors Notes, Notices, and Caution ...

  • Dell C400 - page 2

    Back to Contents Page Before You Begin Dell™ Latitude™ C400 Service Manual Preparing to Work Inside the Computer Recommended Tools Screw Identification Preparing to Work Inside the Computer 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 b ...

  • Dell C400 - page 3

    5 -mm nut driver 7 -mm nut driver Needle - nose pliers Flash BIOS update program floppy disk or CD Computer Orientation 1 back 2 right 3 front 4 left Screw Identification 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 size ...

  • Dell C400 - page 4

    Hard Drive Door: (1 each) Modem Daughter Card: (1 each) Keyboard: (4 each) Display Assembly: Display 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) ...

  • Dell C400 - page 5

    System Board: (1 each) Guide pins: 2 each 5 -mm hex nuts: 4 each 7 -mm hex nuts: 2 each Back to Contents Page ...

  • Dell C400 - page 6

    Back to Contents Page System Components Dell™ Latitude™ C400 Service Manual 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. NOTICE: Unless otherwise noted, each procedure in this manual assumes that a part can be replaced ...

  • Dell C400 - page 7

    Back to Contents Page ...

  • Dell C400 - page 8

    Back to Contents Page Keyboard Dell™ Latitude™ C400 Service Manual Removing the Keyboard Replacing the Keyboard Removing the Keyboard 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 unpai ...

  • Dell C400 - page 9

    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 < ...

  • Dell C400 - page 10

    1 keyboard flex cable 6 . Use the pull 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 pointing toward the back of the computer. N ...

  • Dell C400 - page 11

    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 their respective slots before trying to completely seat the keyboard. Fitting the tabs to the slots may be easiest when viewed from above and slightly behind the front edge of the keyboard. Press dow ...

  • Dell C400 - page 12

    Back to Contents Page Memory Module and Modem Daughter Card Dell™ Latitude™ C400 Service Manual Removing the Memory Module/Modem Cover Removing the Memory Modules Replacing the Memory Modules Removing the Modem Daughter Card Replacing the Modem Daughter Card Removing the Memory Module/Modem Cover NOTE: This procedure covers removing and replaci ...

  • Dell C400 - page 13

    Removing the Memory Modules 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 to Work Inside the Computer " before performing the ...

  • Dell C400 - page 14

    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 in the center of the socket. 2 . Slide the edge connector of the module firmly into the socket at a 45 - degree angle, and rotate the module down until you hear a click. If you do not hear the cli ...

  • Dell C400 - page 15

    2 pull tab 3 boss 4 modem connector 5 modem cable Replacing the Modem Daughter Card 1 . Connect the modem cable to the modem daughter card. NOTICE: The connectors are keyed for correct insertion; do not force 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 ...

  • Dell C400 - page 16

    Back to Contents Page Hard Drive Dell™ Latitude™ C400 Service Manual Removing the Hard Drive Replacing the Hard Drive Removing the Hard Drive 1 . Save and close any open files, exit any open programs, and shut down the computer. NOTICE: Disconnect the computer and any attached devices from electrical outlets, and remove the battery. NOTICE: The ...

  • Dell C400 - page 17

    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 - ...

  • Dell C400 - page 18

    Back to Contents Page Wireless Network Adapter Dell™ Latitude™ C400 Service Manual Removing the Wireless Network Adapter Replacing the Wireless Network Adapter Removing the Wireless Network Adapter NOTICE: Disconnect the computer and any attached devices from electrical outlets, and remove any installed batteries. NOTICE: To avoid ESD, ground y ...

  • Dell C400 - page 19

    down into place. Back to Contents Page ...

  • Dell C400 - page 20

    Back to Contents Page Display Assembly and Display Latch Dell™ Latitude™ C400 Service Manual Removing the Display Assembly Replacing the Display Latch Removing the Display Assembly NOTICE: You must remove the display assembly before you remove the palm rest. NOTICE: Disconnect the computer and any attached devices from electrical outlets, and r ...

  • Dell C400 - page 21

    Display Assembly 1 display - feed flex cable 2 M2.5 x 12 - mm screws (2) 3 display - feed flex cable hold- down board 4 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 ...

  • Dell C400 - page 22

    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 2 display latch 3 M2 x 4 - mm screw (6) 4 display assembly 4 . Use a small flat - bla ...

  • Dell C400 - page 23

    Back to Contents Page Palm Rest Dell™ Latitude™ C400 Service Manual Removing the Palm Rest Replacing the Palm Rest Removing the Palm Rest 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 u ...

  • Dell C400 - page 24

    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 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 ...

  • Dell C400 - page 25

    1 M2.5 x 6 - mm screws (6) 2 LED cable 3 palm -rest flex cable 9 . Remove the six 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. Replacing the Palm Re ...

  • Dell C400 - page 26

    Back to Contents Page Cooling Fan Dell™ Latitude™ C400 Service Manual Removing the Cooling Fan Removing the Cooling Fan 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 sur ...

  • Dell C400 - page 27

    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 ...

  • Dell C400 - page 28

    Back to Contents Page Reserve Battery Dell™ Latitude™ C400 Service Manual Removing the Reserve Battery Replacing the Reserve Battery Removing the Reserve Battery 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 info ...

  • Dell C400 - page 29

    1 reserve battery connector on system board 2 reserve battery cable 3 reserve battery 5 . Disconnect the reserve 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 t ...

  • Dell C400 - page 30

    Back to Contents Page Flashing the BIOS Dell™ Latitude™ C400 Service Manual Perform the following steps to update the BIOS: 1 . Make sure that the AC adapter is plugged in and that the main battery is installed properly. 2 . Turn on the computer. The following error message appears: System hardware failures: #0010 Strike the F1 key to shutdown ...

  • Dell C400 - page 31

    Back to Contents Page Audio Board Dell™ Latitude™ C400 Service Manual Removing the Audio Board Replacing the Audio Board Removing the Audio Board 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 touch ...

  • Dell C400 - page 32

    1 M2 x 4 - mm 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. Replacing the Audio Board The audio board can be easily misaligned. When replacing it, first align the two screw holes in the board with the holes in ...

  • Dell C400 - page 33

    Back to Contents Page System Board Dell™ Latitude™ C400 Service Manual Removing the System Board Replacing the System Board Removing the System Board The system board's BIOS chip contains the service tag sequence, which is also visible on a barcode label on the bottom of the computer. The replacement kit for the system board may include a ...

  • Dell C400 - page 34

    1 fan 2 reserve battery cable 3 connector for fan extender cable 4 hard - drive connector 5 M2 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 ...

  • Dell C400 - page 35

    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 the instructions on the screen. NOTE: After replacing the system board, be sure to enter the computer's service tag sequence into the BIOS of the replacement system bo ...

  • Dell C400 - page 36

    Back to Contents Page Battery Latch Dell™ Latitude™ C400 Service Manual Removing the Battery Latch Replacing the Battery Latch Removing the Battery Latch 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 ...

  • Dell C400 - page 37

    1 tension spring 2 bottom case 3 battery latch 4 battery release - button tabs NOTICE: The tabs on the release button are plastic. When squeezing the tabs, be careful 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, cat ...

  • Dell C400 - page 38

    Back to Contents Page Pin Assignments 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 Docking Connector Pin Signal 1 STRB#/5V 2 PD0 3 PD1 4 PD2 5 PD3 6 PD4 7 PD5 Pin ...

  • Dell C400 - page 39

    8 PD6 9 PD7 10 GND 11 DOCK_SPKR 12 DOCK_MIC 13 DOCK_LINE 14 DOCK_CDROM 15 GND 16 NC 17 POWER_SW# 18 QPCIEN# 19 S1.6M_EN# 20 DFDD/LPT# 21 GND 22 NC 23 NC 24 D_ACTLED 25 D_PWRLED 26 DOCK_PWR_SRC 27 DOCK_PWR_SRC 28 DOCK_PWR_SRC 29 GND 30 +5VDOCK 31 +5VDOCK 32 +5VDOCK 33 +5VDOCK 34 +5VDOCK 35 GND 36 DOCK_PWR_SRC 37 DOCK_PWR_SRC 38 DOCK_PWR_SRC 39 DOCK_ ...

  • Dell C400 - page 40

    48 DOCK_+DC_IN 49 GND 50 LOW_PWR 98 +5VSUS 99 NC 100 NC 148 NC 149 +5VALW 150 NC 198 NC 199 NC 200 GND 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 Pin Signal 1 VCC 2 –DATA 3 +DATA 4 GROUND IDE Module Bay Connector ...

  • Dell C400 - page 41

    Pin Signal 1 BAY_MODPRES# 2 HDSEL# 3 RDATA# 4 WRPRT# 5 WRDATA# 6 INDEX# 7 DSKCHG# 8 1D6M_EN# 9 SIDE_IOW# 10 SIDED15 11 SIDED12 12 SIDED9 13 SIDE_CS3# 14 SIDE_CS1# 15 +5VMOD 16 IRQ15 17 +5VMOD 18 SIDED0 19 +5VMOD 20 SIDED3 21 +5VMOD 22 SIDED6 23 +5VMOD 24 SIDE_A2 25 +5VMOD 26 SIDE_DACK# 27 +5VMOD 28 SIDE_IOR# 29 +5VMOD 30 SIDED14 31 +5VMOD 32 SIDED1 ...

Manufacturer Dell Category Laptop

Documents that we receive from a manufacturer of a Dell C400 can be divided into several groups. They are, among others:
- Dell technical drawings
- C400 manuals
- Dell product data sheets
- information booklets
- or energy labels Dell C400
All of them are important, but the most important information from the point of view of use of the device are in the user manual Dell C400.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Dell C400, service manual, brief instructions and user manuals Dell C400. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Dell C400.

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A complete manual for the device Dell C400, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Dell C400 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Dell C400.

A complete Dell manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Dell C400 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Dell C400, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Dell C400, that we can find in the current document
3. Tips how to use the basic functions of the device Dell C400 - which should help us in our first steps of using Dell C400
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Dell C400
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Dell C400 in a specific country, if it was not possible to solve the problem on our own.

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