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Dell™ Latitude™ E6400 and E6400 ATG and 
Mobile Workstation Precision™ M2400 Service Manual
WLAN/WiMax Card
WPAN (UWB/BT) Card
FCM
Fan
Memory
Coin-Cell Battery
 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 potential for property damage, personal injury, or death.
If you purchased a DELL™ n Series computer, any references in this document to Microsoft
Information in this document is subject to change without notice.
© 2008 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, Latitude, and the DELL logo are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc., and is used by Dell
under license; Intel is a registered trademark of Intel Corporation in the U.S. and other countries; Microsoft, Windows, Windows Vista, and the Windows Vista start button logo are
either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
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 Inc. disclaims any
proprietary interest in trademarks and trade names other than its own.
September 2009     Rev. A02
Keyboard
Modem
Right Speaker Grill/Fingerprint Reader Assembly
1394 Card
RJ-11 Modem Connector
I/O Card
®
®
Windows
operating systems are not applicable.

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   Summary of Contents for Dell Precision M2400

  • Page 1

    Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, Latitude, and the DELL logo are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc., and is used by Dell under license;...

  • Page 2

    Back to Contents Page   1394 Card Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the 1394 Card   Replacing the 1394 Card  Removing the 1394 Card   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Follow the instructions in Before Working on Your Computer.

  • Page 3

     Replacing the 1394 Card   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Insert the 1394 card at a 45-degree angle to fit the connector into the base assembly. Use the alignment pins to seat into position.  ...

  • Page 4: Base Assembly

    Back to Contents Page   Base Assembly Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Bottom of the Base Assembly   Replacing the Bottom of the Base Assembly   Removing the Base Assembly   Replacing the Base Assembly   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 5

      5. Remove the hinge covers (see Removing the Hinge Covers).   6. Remove the card from the WPAN/UWB/FCM card slot, if present (see Removing a WPAN (UWB/BT) Card Removing an FCM from the WPAN/UWB/FCM Slot).   7. Remove the heatsink assembly (see Removing the Processor Heatsink Assembly).

  • Page 6

    22. Enter the system setup program to update the BIOS on the new system board with the computer Service Tag. For information on the system setup program, see the Dell™ Technology Guide on your computer or at support.dell.com. Back to Contents Page...

  • Page 7: Battery Latch Assembly

    Back to Contents Page   Battery Latch Assembly Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing a Battery Latch Assembly   Replacing the Battery Latch Assembly There are two battery latches, a left and a right, and each latch uses a unique latch assembly. The spring, screw, and release buttons are the same for the left and right battery latches.

  • Page 8: Replacing The Battery Latch Assembly

    1 spring 2 alignment bracket 3 M2 x 3-mm screws (2) 4 battery release button 5 base assembly      Replacing the Battery Latch Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.  ...

  • Page 9

      17. Replace the hard drive (see Replacing the Hard Drive).   18. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly).   19. Follow the procedures in After Working on Your Computer. Back to Contents Page  ...

  • Page 10: Working On Your Computer, Recommended Tools

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

  • Page 11

    After you have completed the replacement procedures, ensure you connect the external devices, cards, cables, etc. before turning on your computer. NOTE: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries designed for other Dell computers.

  • Page 12

    1. Connect any external devices, such as a port replicator, battery slice, or cool slice, and replace any cards, such as an ExpressCard.   2. To replace a port cover from the E6400 ATG, fit the port cover into the connectors on the back of the computer.  ...

  • Page 13: Flashing The Bios, Flashing The Bios From A Cd

    1. Ensure that the AC adapter is plugged in, the main battery is properly installed, and a network cable is attached.   2. Turn on the computer.   3. Locate the latest BIOS update file for your computer at support.dell.com.   4. Click Download Now to download the file.  ...

  • Page 14

    Back to Contents Page  ...

  • Page 15: Card Cage

    Back to Contents Page   Card Cage Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Card Cage   Replacing the Card Cage  Removing the Card Cage   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 16

      CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.   1. Holding the card cage at a 45-degree angle, attach the front of the card cage to the base assembly, then lower the card cage into place.  ...

  • Page 17: Removing The Coin-cell Battery

    Back to Contents Page   Coin-Cell Battery Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Coin-Cell Battery   Replacing the Coin-Cell Battery  Removing the Coin-Cell Battery   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 18

    coin-cell battery coin-cell battery cable   3. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly).   4. Follow the procedures in After Working on Your Computer. Back to Contents Page  ...

  • Page 19: Processor Module, Removing The Processor Module

    Back to Contents Page   Processor Module Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Processor Module   Replacing the Processor Module  Removing the Processor Module   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Follow the instructions in Before Working on Your Computer.

  • Page 20: Replacing The Processor Module

    NOTICE: When removing the processor module, pull the module straight up. Be careful not to bend the pins on the processor module.   5. Lift the processor module from the ZIF socket.  Replacing the Processor Module   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.  ...

  • Page 21: Processor Heatsink Assembly

    Back to Contents Page   Processor Heatsink Assembly Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Processor Heatsink Assembly   Replacing the Processor Heatsink Assembly  Removing the Processor Heatsink Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.

  • Page 22

      6. Follow the procedures in After Working on Your Computer. Back to Contents Page  ...

  • Page 23

    Back to Contents Page   I/O Card Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the I/O Card   Replacing the I/O Card  Removing the I/O Card   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Follow the procedures in Before Working on Your Computer.

  • Page 24

    plastic plug M2 x 3-mm screw I/O card      Replacing the I/O Card   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Place the I/O card in the base assembly.  ...

  • Page 25

    Back to Contents Page  ...

  • Page 26: Display Assembly

    Back to Contents Page   Display Assembly Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Display Assembly (E6400 and M2400)   Removing the Display Inverter (E6400 and M2400)   Replacing the Display Assembly (E6400 and M2400)   Replacing the Display Inverter (E6400 and M2400)   Removing the Display Assembly (E6400 ATG)   Removing the Display Hinges (E6400 and M2400)

  • Page 27

    1 display assembly 2 base assembly  Replacing the Display Assembly (E6400 and M2400)   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Position the cables on the display assembly away from the base assembly.  ...

  • Page 28

      4. Disconnect and unroute the display cable, touch screen cable, and the wireless cables (WLAN, WWAN, and WPAN). Position all cables to the rear of the laptop after unrouting.   5. Remove the two M2.5 x 5-mm screws from the hinges. 1 M2.5 x 5-mm screws (2) 2 touch screen cable 3 display cable 4 WPAN cable...

  • Page 29

    channel, including the tabs on the back of the base assembly.   5. Depending on the cards in your computer configuration, connect the antenna cables to their respective card: For WWAN, see Replacing a WWAN Card. For WPAN, see Replacing a WPAN (UWB/BT) Card.

  • Page 30

      11. Once all snaps are released, lift the bezel from the display assembly. 1 right side of display bezel 2 top of display bezel 3 left side of display bezel 4 bottom of display bezel 5 display panel    ...

  • Page 31

      3. Simultaneously pull out on the top and bottom of the bezel to engage the top and bottom bezel snaps.   4. Gently snap the bezel into place to secure it to the display assembly.   5. Replace the display assembly (see Replacing the Display Assembly (E6400 and M2400)).

  • Page 32

    1 right side of display bezel 2 top of display bezel 3 left side of display bezel 4 display panel 5 bottom of display bezel      Replacing the Display Bezel (E6400 ATG)   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.  ...

  • Page 33

      2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).   3. Remove the hinge covers (see Removing the Hinge Covers).   4. Remove the display assembly (see Removing the Display Assembly (E6400 and M2400)).

  • Page 34

    1 display panel 2 brackets (2) 3 M2 x 3-mm screws (8)      Replacing the CCFL Display Panel and Brackets (E6400 and M2400)   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer. NOTE: The brackets are labeled "L"...

  • Page 35

    6. Remove the four M2.5 x 5-mm screws from the display panel. 1 M2.5 x 5-mm screws (4) 2 display panel 3 display cover       7. Lift the display panel out of the display cover and carefully lay the display panel flat on your workspace. Be careful to avoid damaging the display panel with the hinges and cables on the display cover.

  • Page 36

    CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer. NOTE: The brackets are labeled "L" (left) and "R" (right).   1. Replace the two M2 x 3-mm screws on the right bracket and the two M2 x 3-mm screws on the left bracket.

  • Page 37

      9. For touch screen display panels, disconnect the touch screen cable. 1 display cable 2 display connector release tabs 3 underside of display panel 4 touch screen cable (touch screen display panels only) 5 touch screen cable connector (touch screen display panels only)    ...

  • Page 38

      7. Replace the display bezel (see Replacing the Display Bezel (E6400 ATG)).   8. Replace the display assembly (see Replacing the Display Assembly (E6400 ATG)).   9. Replace the hinge covers (see Replacing the Hinge Covers).   10. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly).

  • Page 39

      4. Replace the display assembly (see Replacing the Display Assembly (E6400 and M2400)).   5. Replace the hinge covers (see Replacing the Hinge Covers).   6. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly).

  • Page 40

      3. Replace the display panel (see Replacing the CCFL Display Panel and Brackets (E6400 and M2400) Replacing the LED Display Panel and Brackets (E6400 and M2400)).   4. Replace the display bezel (see Replacing the Display Bezel (E6400 and M2400)).

  • Page 41: Removing The Microphone Board, Replacing The Microphone Board

    1. Thread the cables into each hinge, then slide the hinge onto the display cover. Use the alignment pins on the display cover to place each hinge.   2. Replace the two M2.5 x 5-mm screws on the right hinge and the two M2.5 x 5-mm screws on the left hinge.  ...

  • Page 42

    1 notch on display cover 2 microphone board   4. Tighten the M2 x 3-mm screw that secures the microphone board to the display cover.   5. Replace the display bezel (see Replacing the Display Bezel (E6400 and M2400) Replacing the Display Bezel (E6400 ATG)).

  • Page 43: Replacing The Camera And Microphone Assembly

    5 camera/microphone cable      Replacing the Camera and Microphone Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Slide the cable connector of the camera/microphone cable into the connector on the camera/microphone assembly.  ...

  • Page 44

    1 M2.5 x 5-mm screw 2 latch hook assembly 3 display cover      Replacing the Latch Hook Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Angle the latch hook into the display cover.  ...

  • Page 45

      CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Remove the tape from the cables that are taped to the display cover.   2. Replace the display panel (see Replacing the CCFL Display Panel and Brackets (E6400 and M2400), Replacing the LED Display Panel and Brackets (E6400 and M2400)

  • Page 46: Removing The Fan, Replacing The Fan

    Back to Contents Page   Fan Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Fan   Replacing the Fan  Removing the Fan   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Follow the instructions in Before Working on Your Computer.

  • Page 47

    Back to Contents Page  ...

  • Page 48

    Back to Contents Page   FCM Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing an FCM from the WWAN/FCM Slot   Removing an FCM from the WPAN/UWB/FCM Slot   Replacing an FCM   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 49

    M2 x 3-mm screw card connector      Replacing an FCM   NOTICE: When installing this module, ensure that the antenna cables are not under the card. Place the antenna cables in the holder next to the module. Installing the module on top of these antenna cables may cause damage to your computer.  ...

  • Page 50

    holder by module blue antenna cable       5. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly).   6. Follow the procedures in After Working on Your Computer. Back to Contents Page  ...

  • Page 51: Hard Drive, Removing The Hard Drive

      Replacing the 1.8" Hard Drive (E6400 ATG)   Removing the Modular Hard Drive   Replacing the Modular Hard Drive NOTE: Dell does not guarantee compatibility or provide support for hard drives obtained from sources other than Dell.  Removing the Hard Drive   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 52: Replacing The Hard Drive

      7. Install the operating system, drivers, and utilities for your computer, as needed. For more information, see the Setup and Quick Reference Guide that shipped with your computer or at support.dell.com.  Removing the 1.8" Hard Drive (E6400 ATG)  ...

  • Page 53

    1 hard drive 2 bottom of base assembly 3 M3 x 3-mm screws (2)       5. Remove the M3 x 3-mm screw on the hard drive bezel.   6. Remove the hard drive bezel. 1 hard drive bezel 2 pin on bezel bracket 3 hard drive 4 M3 x 3-mm screw  ...

  • Page 54

    1 hard drive 2 hard drive carrier 3 connector       10. Pull out on the sides of the blue bumper to remove it from the hard drive. 1 hard drive 2 blue bumper  Replacing the 1.8" Hard Drive (E6400 ATG)  ...

  • Page 55

    After Working on Your Computer.   11. Install the operating system, drivers, and utilities for your computer, as needed. For more information, see the Setup and Quick Reference Guide that shipped with your computer at support.dell.com.  Removing the Modular Hard Drive  ...

  • Page 56

    CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.   CAUTION: Do not touch the metal housing of the hard drive if you remove the hard drive from the computer while the drive is hot.  ...

  • Page 57

    1 M2.5 x 5-mm screw 2 release latch carrier 3 hard drive carrier       10. Remove the three M2.5 x 5-mm screws on the cover of the hard drive carrier.   11. Lift the cover up at an angle and remove. 1 cover 2 M2.5 x 5-mm screws (3) 3 hard drive carrier  ...

  • Page 58

    1 hard drive 2 hard drive carrier   14. Lift the connector-end of the hard drive and remove the hard drive from the hard drive bracket. 1 hard drive 2 connector 3 hard drive bracket       15. Pull out on the sides of the blue bumper to remove it from the hard drive. 1 hard drive 2 blue bumper  Replacing the Modular Hard Drive  ...

  • Page 59

    1 hard drive 2 blue bumper 3 connector 4 top of blue bumper   2. Place the end that is opposite from the connector on the hard drive into the hard drive bracket, ensuring that the hard drive fits into each corner of the hard drive bracket.

  • Page 60

    1 hard drive carrier 2 M2.5 x 5-mm screws (4) 3 hard drive 4 hard drive bracket   7. Attach the side of the cover where it is angled, ensuring the tabs on the cover fit properly into the notches on the carrier.  ...

  • Page 61

    After Working on Your Computer.   17. Install the operating system, drivers, and utilities for your computer, as needed. For more information, see the Setup and Quick Reference Guide that shipped with your computer at support.dell.com. Back to Contents Page  ...

  • Page 62: Hinge Covers, Removing The Hinge Covers, Replacing The Hinge Covers

    Back to Contents Page   Hinge Covers Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Hinge Covers   Replacing the Hinge Covers  Removing the Hinge Covers   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 63: Removing The Keyboard, Replacing The Keyboard

    Back to Contents Page   Keyboard Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Keyboard   Replacing the Keyboard  Removing the Keyboard   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.   1. Follow the procedures in Before Working on Your Computer.

  • Page 64

    1 M2 x 3-mm screws (2) 2 tabs (5) 3 keyboard connector       4. Replace the LED cover (see Replacing the LED Cover).   5. Follow the procedures in After Working on Your Computer. Back to Contents Page  ...

  • Page 65: Led Cover, Removing The Led Cover

    Back to Contents Page   LED Cover Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the LED Cover   Replacing the LED Cover  Removing the LED Cover   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 66

    Back to Contents Page  ...

  • Page 67: Removing A Memory Module, Replacing A Memory Module

    "Specifications" in your Setup and Quick Reference Guide for information on the memory supported by your computer. Install only memory modules that are intended for your computer. NOTE: Memory modules purchased from Dell are covered under your computer warranty.  Removing a Memory Module  ...

  • Page 68

    As the computer boots, it detects the additional memory and automatically updates the system configuration information. To confirm the amount of memory installed in the computer:  In Windows XP, right-click the My Computer icon on your desktop. Click Properties® General.  In Windows Vista, click Start ® Help and Support® Dell System Information. Back to Contents Page  ...

  • Page 69: Removing The Modem, Replacing The Modem

    Back to Contents Page   Modem Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Modem   Replacing the Modem  Removing the Modem   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Follow the procedures in Before Working on Your Computer.

  • Page 70

    Back to Contents Page  ...

  • Page 71: Modular Drive, Replacing The Modular Drive

    Back to Contents Page   Modular Drive Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Modular Drive   Replacing the Modular Drive The modular drive supports either a second hard drive, an optical drive, or a an air bay for travel.  Removing the Modular Drive  ...

  • Page 72: Palm Rest Assembly, Removing The Palm Rest Assembly

    Back to Contents Page   Palm Rest Assembly Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Palm Rest Assembly   Replacing the Palm Rest Assembly  Removing the Palm Rest Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.

  • Page 73: Replacing The Palm Rest Assembly

    1 2.5 x 5-mm screws (4) 2 speaker cable 3 wireless switch cable 4 touch pad cable 5 contactless smart card cable 6 palm rest  Replacing the Palm Rest Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.  ...

  • Page 74: Dc Power Cable, Removing The Dc Power Cable, Replacing The Dc Power Cable

    Back to Contents Page   DC Power Cable Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the DC Power Cable   Replacing the DC Power Cable  Removing the DC Power Cable   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.

  • Page 75

      CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Place the DC power cable in the base assembly, aligning the guides on the connector sides with the base.   2. Route the DC power cable in the base assembly.  ...

  • Page 76

    Back to Contents Page   RJ-11 Modem Connector Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the RJ-11 Modem Connector   Replacing the RJ-11 Modem Connector  Removing the RJ-11 Modem Connector   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.

  • Page 77

      2. Replace the modem (see Replacing the Modem).   3. Replace the palm rest assembly (Replacing the Palm Rest Assembly).   4. Replace the right speaker grill (see Replacing the Right Speaker Grill/Fingerprint Reader Assembly).   5. Replace the keyboard (see Replacing the Keyboard).

  • Page 78

    Back to Contents Page   Right Speaker Grill/Fingerprint Reader Assembly Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the Right Speaker Grill/Fingerprint Reader Assembly   Replacing the Right Speaker Grill/Fingerprint Reader Assembly NOTE: The fingerprint reader is optional and may not be installed on your computer.

  • Page 79

    1 fingerprint reader cable (optional) 2 speaker grill 3 fingerprint reader (optional)      Replacing the Right Speaker Grill/Fingerprint Reader Assembly   CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer.   1. Snap the right speaker grill into place on the palm rest. NOTE: If you are installing a new right speaker grill with a fingerprint reader, remove the backing from the fingerprint reader cable.

  • Page 80: System Board Assembly, Removing The System Board Assembly

    Back to Contents Page   System Board Assembly Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the System Board Assembly   Replacing the System Board Assembly The system board's BIOS chip contains the Service Tag, which is also visible on a barcode label on the bottom of the computer. The replacement kit for the system board includes media that provides a utility for transferring the Service Tag to the replacement system board.

  • Page 81: Replacing The System Board Assembly

    25. Lift the system board out of the base assembly. 1 smart card cable 2 system board 3 top-left corner of base assembly 4 M2.5 x 5-mm system board screws (3) 5 DC cable 6 I/O card 7 top-right corner of base assembly 8 1394 card cable  Replacing the System Board Assembly  ...

  • Page 82

    27. Enter the system setup program to update the BIOS on the new system board with the computer Service Tag. For information on the system setup program, see the Dell™ Technology Guide on your computer or at support.dell.com. Back to Contents Page...

  • Page 83

    Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, Latitude, and the DELL logo are trademarks of Dell Inc.; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc., and is used by Dell under license;...

  • Page 84: Troubleshooting, Troubleshooting Tools, Diagnostic Lights, Diagnostic Light Codes During Post

    NOTE: After the computer completes POST, the Num Lock light may remain on, depending on your BIOS settings. For more information on using the system setup program, see the Dell™ Technology Guide on your computer or at support.dell.com.   Diagnostic Light Codes During POST To troubleshoot a problem with your computer, read the sequence of the keyboard status lights in order from left to right (Num Lock, Caps Lock, and then Scroll Lock).

  • Page 85: Hardware Troubleshooter, Dell Diagnostics, When To Use The Dell Diagnostics

    Starting the Dell Diagnostics From Your Hard Drive Before running the Dell Diagnostics, enter system setup to review your computer's configuration information, and ensure that the device you want to test is displayed in system setup and is active. For more information on using the system setup program, see the Dell™ Technology Guide on your computer or at support.dell.com.

  • Page 86: Starting The Dell Diagnostics From The Drivers And Utilities Media

    When the test completes, record the test results and then press any key to return to the previous menu.   5. At the Dell Diagnostics Main Menu, left-click with the touch pad/mouse, or press <Tab> and then <Enter>, to select the test you want to run (see Dell Diagnostics Main Menu).

  • Page 87: Dell Diagnostics Main Menu

    NOTE: When contacting Dell Support, have your Service Tag ready. The Service Tag for your computer is located at the top of each test screen. The following tabs provide additional information for tests run from the Custom Test or Symptom Tree option:  ...

  • Page 88: Error Messages, Solving Problems, Battery Problems, Drive Problems

     If an error message occurs in a program, see the program's documentation. NOTE: The procedures in this document were written for the Windows default view, so they may not apply if you set your Dell computer to the Windows Classic view.

  • Page 89: Optical Drive Problems

    Turn off standby mode in Windows before writing to a disc — For information about setting power options, see the Dell™ Technology Guide on your computer or at support.dell.com. You can also search for the keyword standby in Windows Help and Support for information on power management modes.

  • Page 90: Hard Drive Problems, Ieee 1394 Device Problems, Lockups And Software Problems

    If your IEEE 1394 device is listed, Windows recognizes the device.   If you have problems with a Dell IEEE 1394 device — Contact Dell Support.    If you have problems with an IEEE 1394 device not provided by Dell — Contact the IEEE 1394 device manufacturer.   Lockups and Software Problems  ...

  • Page 91: The Computer Stops Responding, A Program Stops Responding, A Program Crashes Repeatedly

    Ensure that the power cable is firmly connected to the computer and to the electrical outlet   The computer stops responding   NOTICE: You may lose data if you are unable to perform an operating system shutdown.   Turn the computer off — If you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold the power button for at least 8 to 10 seconds (until the computer turns off), and then restart your computer.

  • Page 92: Memory Problems, Power Problems, Sound And Speaker Problems, No Sound From Speakers

     Ensure that the memory you are using is supported by your computer. For more information about the type of memory supported by your computer, see the Setup and Quick Reference Guide for your computer at support.dell.com.  Run the Dell Diagnostics (see Dell Diagnostics).

  • Page 93: No Sound From Headphones, Video And Display Problems, Dell Technical Update Service

    If the external monitor works, the computer display or video controller may be defective. Contact Dell Support.  Dell Technical Update Service The Dell Technical Update service provides proactive e-mail notification of software and hardware updates for your computer. The service is free and can be...

  • Page 94: Dell Support Utility, Accessing The Dell Support Utility, Clicking The Dell Support Icon

    Double-Clicking the Dell Support Icon Double-click the icon to manually check your computing environment, view frequently asked questions, access the help file for the Dell Support Utility, and view Dell Support settings. For more information about the Dell Support Utility, click the question mark (?) at the top of the Dell™ Support screen.

  • Page 95

    Back to Contents Page   WLAN/WiMax Card Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing the WLAN/WiMax Card   Replacing the WLAN/WiMax Card   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.   NOTICE: Insert a WLAN or WiMax card only into the slot labeled WLAN/WiMax.

  • Page 96

     Replacing the WLAN/WiMax Card   NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system board, and realign the card.   NOTICE: To avoid damage to the WLAN or WiMax card, ensure the cables are not under the card when you replace it.  ...

  • Page 97

    Back to Contents Page   WPAN (UWB/BT) Card Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing a WPAN (UWB/BT) Card   Replacing a WPAN (UWB/BT) Card   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

  • Page 98

     Replacing a WPAN (UWB/BT) Card   NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system board, and realign the card.   NOTICE: To avoid damage to the WPAN card, ensure the cables are not under the card when you replace it.  ...

  • Page 99: Wwan Card, Replacing A Wwan Card

    Back to Contents Page   WWAN Card Dell™ Latitude™ E6400 and E6400 ATG and  Mobile Workstation Precision™ M2400 Service Manual   Removing a WWAN Card   Replacing a WWAN Card   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.   NOTICE: Insert a WWAN card or FCM only into the slot labeled WWAN/FCM.

  • Page 100

      NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the card and on the system board, and realign the card.   NOTICE: To avoid damage to the WWAN card, ensure the cables are not under the card when you replace it.  ...

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