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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.
Removing the Bottom of the Base Assembly
1. Follow the procedures in Before Working on Your Computer.
2. Close the display and turn the computer upside down.
3. Loosen the captive screw.
4. Slide the bottom of the base assembly away from the hinge covers, and lift to remove the bottom of the base assembly.
1 hinges covers (2) 2 bottom of the base assembly
3 captive screw
Replacing the Bottom of the Base Assembly
1. Slide the bottom of the base assembly into place.
2. Tighten the captive screw.
3. Follow the procedures in After Working on Your Computer.
Removing the Base Assembly
1. Follow the procedures in Before Working on Your Computer.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Remove the card in the WWAN/FCM card slot, if present (see Removing a WWAN Card or Removing an FCM from the WWAN/FCM Slot).
4. Remove the card from the WLAN/WiMax card slot, if present (see Removing the WLAN/WiMax Card).
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 or Removing an FCM from the WPAN/UWB/FCM Slot).
7. Remove the heatsink assembly (see Removing the Processor Heatsink Assembly).
8. Remove the hard drive (see Removing the Hard Drive).
9. Remove the modular drive (see Removing the Modular Drive).
10.Remove the display assembly (see Removing the Display Assembly (E6400 and M2400) or Removing the Display Assembly (E6400 ATG)).
11.Remove the LED cover (see Removing the LED Cover).
12.Remove the keyboard (see Removing the Keyboard).
13.Remove the right speaker grill (see Removing the Right Speaker Grill/Fingerprint Reader Assembly).
14.Remove the palm rest assembly (see Removing the Palm Rest Assembly).
15.Remove the card cage (see Removing the Card Cage).
16.Remove the coin-cell battery (see Removing the Coin-Cell Battery).
17.Remove the system board (see Removing the System Board Assembly).
18.Remove the modem (see Removing the Modem).
19.Remove the RJ-11 modem connector (see Removing the RJ-11 Modem Connector).
20.Remove the I/O card (see Removing the I/O Card).
Replacing the Base Assembly
1. Replace the I/O card (see Replacing the I/O Card).
2. Replace the RJ-11 modem connector (see Replacing the RJ-11 Modem Connector).
3. Replace the modem (see Replacing the Modem).
4. Replace the system board (see Replacing the System Board Assembly).
5. Replace the coin-cell battery (see Replacing the Coin-Cell Battery).
6. Replace the card cage (see Replacing the Card Cage).
7. Replace the palm rest assembly (see Replacing the Palm Rest Assembly).
8. Replace the right speaker grill (see Replacing the Right Speaker Grill/Fingerprint Reader Assembly).
9. Replace the keyboard (see Replacing the Keyboard).
10.Replace the LED cover (see Replacing the LED Cover).
11.Replace the display assembly (see Replacing the Display Assembly (E6400 and M2400) or Replacing the Display Assembly (E6400 ATG)).
12.Replace the modular drive (see Replacing the Modular Drive).
13.Replace the hard drive (see Replacing the Hard Drive).
14.Replace the heatsink assembly (see Replacing the Processor Heatsink Assembly).
15.Replace the card in the WPAN/UWB/FCM card slot, if applicable (see Replacing a WPAN (UWB/BT) Card or Replacing an FCM).
16.Replace the hinge covers (see Replacing the Hinge Covers).
17.Replace the card from the WLAN/WiMax card slot, if applicable (see Replacing the WLAN/WiMax Card).
18.Replace the card from the WWAN/FCM card slot, if applicable (see Replacing a WWAN Card or Replacing an FCM).
19.Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly).
20.Follow the procedures in After Working on Your Computer.
NOTE: If you use a BIOS update program disc to flash the BIOS, press <F12> before inserting the disc in order to set the computer to boot from the disc for one time only. Otherwise, you must enter the system setup program to change the default boot order.
21.Flash update the BIOS (see Flashing the BIOS for more information).
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.
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.
Removing a WWAN Card
1. Follow the procedures in Before Working on Your Computer.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Disconnect the antenna cables from the card.
4. Remove the M2 x 3-mm screw. The card pops up at a 45-degree angle.
1 antenna cables (2) 2 WWAN card
3 M2 x 3-mm screw
5. Slide the card out of the card connector on the system board.
1 WWAN card 2 card connector
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.
The FCM is also known as Intel® Turbo Memory and the Intel Flash Cache Logic Chip Mini-card. You can install an FCM in either the WWAN/FCM card connector or the WPAN/UWB/FCM card connector.
NOTE: This module is only compatible with the Microsoft® Windows
Vista® operating system.
Removing an FCM from the WWAN/FCM Slot
1. Follow the procedures in Before Working on Your Computer.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Remove the M2 x 3-mm screw. The FCM pops up at a 45-degree angle.
4. Slide the FCM out of the card connector on the system board.
1 M2 x 3-mm screw 2 card connector
3 FCM
Removing an FCM from the WPAN/UWB/FCM Slot
1. Follow the procedures in Working on Your Computer.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Remove the M2.5 x 5-mm screw from the left hinge cover, and slide it forward then lift to remove it.
4. Remove the M2 x 3-mm screw. The FCM pops up at a 45-degree angle.
5. Slide the FCM out of the card connector on the system.
1 M2 x 3-mm screw 2 card connector
3 FCM
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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.
Removing the WLAN/WiMax Card
1. Follow the procedures in Before Working on Your Computer.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Disconnect the antenna cables from the card.
4. Remove the M2 x 3-mm screw. The card will pop up at a 45-degree angle.
1 antenna cables (3) 2 WLAN/WiMax card
3 M2 x 3-mm screw
5. Slide the card out of the card connector on the system board.
1 WLAN/WiMax card 2 card connector
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.
The hinge covers are not interchangeable; the left one covers the DisplayPort connector and the right one covers the RJ-45 network connector.
1. Follow the procedures in Before Working on Your Computer.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Remove the M2.5 x 5-mm screw from each hinge cover.
4. Slide each hinge cover forward and lift to remove it.
1 M2.5 x 5-mm screws (2) 2 hinge covers
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.
NOTICE: WPAN is a generic name for Ultra Wide Band (UWB) and Bluetooth® (BT). Insert a WPAN card only into the slot labeled WPAN/UWB/FCM.
Removing a WPAN (UWB/BT) Card
1. Follow the procedures in Before Working on Your Computer.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Remove the M2.5 x 5-mm screw from the left hinge cover, then slide it forward and lift to remove it.
4. Disconnect the blue antenna cable from the card.
5. Remove the M2 x 3-mm screw. The card pops up at a 45-degree angle.
1 antenna cable 2 WPAN card
3 M2 x 3-mm screw
6. Slide the card out of the card connector on the system board.
1 WPAN card 2 card connector
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.
1. Follow the instructions in Before Working on Your Computer.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Disconnect the fan cable from the system board.
4. In sequential order, loosen the four captive screws that secure the processor heatsink assembly to the system board.
5. Carefully lift the screw-end of the assembly up at an angle.
6. Remove the vent-end of the assembly out of the computer.
1 vent-end of assembly 2 fan
3 fan cable 4 captive screws (4)
5 screw-end of assembly 6 processor heatsink assembly
Hard Drive Dell™ Latitude™ E6400 and E6400 ATG and Mobile Workstation Precision™ M2400 Service Manual
Removing the Hard Drive
Replacing the Hard Drive
Removing the 1.8" Hard Drive (E6400 ATG)
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.
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.
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 or in Sleep state.
NOTICE: Hard drives are extremely fragile. Exercise care when handling the hard drive.
1. Follow the procedures in Before Working on Your Computer.
2. Close the display and turn the computer upside down.
3. Remove the two M3 x 3-mm screws.
4. Slide the hard drive out of the base assembly.
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
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
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.
NOTE: The security screw on the modular drive is optional and may not be installed on your computer.
1. Follow the procedures in Before Working on Your Computer.
2. Turn your computer upside down.
3. If your computer has a security screw for the modular drive, remove the security screw.
4. Push the release latch in to release it.
5. Use the release latch to slide the drive out of the modular bay.
1 security screw 2 modular bay
3 modular drive 4 release latch
Display Assembly Dell™ Latitude™ E6400 and E6400 ATG and Mobile Workstation Precision™ M2400 Service Manual
Removing the Display Assembly (E6400 and M2400)
Replacing the Display Assembly (E6400 and M2400)
Removing the Display Assembly (E6400 ATG)
Replacing the Display Assembly (E6400 ATG)
Removing the Display Bezel (E6400 and M2400)
Removing the Display Inverter (E6400 and M2400)
Replacing the Display Inverter (E6400 and M2400)
Removing the Display Hinges (E6400 and M2400)
Replacing the Display Hinges (E6400 and
Replacing the Display Bezel (E6400 and M2400)
Removing the Display Bezel (E6400 ATG)
Replacing the Display Bezel (E6400 ATG)
Removing the CCFL Display Panel and Brackets (E6400 and M2400)
Replacing the CCFL Display Panel and Brackets (E6400 and M2400)
Removing the LED Display Panel and Brackets (E6400 and M2400)
Replacing the LED Display Panel and Brackets (E6400 and M2400)
Removing the Display Panel and Brackets (E6400 ATG)
Replacing the Display Panel and Brackets (E6400 ATG)
M2400)
Removing the Display Hinges (E6400 ATG)
Replacing the Display Hinges (E6400 ATG)
Removing the Microphone Board
Replacing the Microphone Board
Removing the Camera and Microphone Assembly
Replacing the Camera and Microphone Assembly
Removing the Latch Hook Assembly
Replacing the Latch Hook Assembly
Removing the Display Cover
Replacing the Display Cover
Removing the Display Assembly (E6400 and M2400)
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.
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. Disconnect and unroute the display cable and the wireless cables (WLAN, WWAN, and WPAN). Position all cables to the rear of the laptop after unrouting.
5. Remove the M2.5 x 5-mm screw from each hinge.
1 M2.5 x 5-mm screws (2) 2 display cable
3 WPAN cable 4 WLAN cable
5 WWAN cable
6. Turn the computer topside up.
7. Open the display to 90 degrees and lift the display assembly off the base assembly.
1 display assembly 2 base assembly
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.
1. Follow the procedures in Before Working on Your Computer.
2. Locate the tabs in the battery bay that secure the LED cover to the top of the computer.
3. Using a plastic scribe, gently push on the tabs to release the LED cover.
1 tabs (3) 2 battery bay
4. Turn the computer topside up, then open the display and remove the LED cover.
1 LED cover
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.
2. Remove the LED cover (see Removing the LED Cover).
3. Remove the two M2 x 3-mm screws along the top of the keyboard.
NOTICE: The key caps on the keyboard are fragile, easily dislodged, and time-consuming to replace. Exercise care when removing and handling the keyboard.
4. Using the pull tab, gently lift the top of the keyboard, then pull back to disconnect the keyboard.
1 M2 x 3-mm screws (2) 2 keyboard
3 pull tab
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.
Removing the Right Speaker Grill/Fingerprint Reader Assembly
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.
2. Remove the modular drive (see Removing the Modular Drive).
3. Remove the LED cover (see Removing the LED Cover).
4. Remove the keyboard (see Removing the Keyboard).
5. Turn the computer upside down, and loosen the two captive screws in the modular drive bay.
1 captive screws (2) 2 modular drive bay
6. Turn the computer topside up and open the display.
NOTE: The fingerprint reader is optional and may not be installed on your computer.
7. If your computer has a fingerprint reader, disconnect the fingerprint reader cable, and peel it away from the palm rest.
8. Unsnap the right speaker grill, then lift it up from the palm rest.
1 fingerprint reader cable (optional) 2 speaker grill
3 fingerprint reader (optional)
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.
1. Follow the instructions in Before Working on Your Computer.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Remove the heatsink assembly (see Removing the Processor Heatsink Assembly).
4. Remove the hinge covers (see Removing the Hinge Covers).
5. Remove the modular drive (see Removing the Modular Drive).
6. Remove the display assembly (see Removing the Display Assembly (E6400 and M2400) or Removing the Display Assembly (E6400 ATG)).
7. Remove the LED cover (see Removing the LED Cover).
8. Remove the keyboard (see Removing the Keyboard).
9. Remove the right speaker grill (see Removing the Right Speaker Grill/Fingerprint Reader Assembly).
10.Turn the computer over and remove seven M2.5 x 5-mm screws.
1 2.5 x 5-mm screws (7)
11.Turn the computer topside up and remove four M2.5 x 5-mm screws labeled "P".
12.Disconnect the wireless switch cable, the speaker cable, and the touch pad cable from the system board.
13.Lift the touch pad cable to reveal the contactless smart card cable underneath. Disconnect the contactless smart card cable from the system board.
NOTICE: Do not use force to separate the palm rest from the computer. If you encounter resistance, gently flex or apply pressure to the palm rest, or move along the edge, working away from the area of resistance, until the palm rest is free.
14.Lift the left side of the palm rest, then push in on the right side to release the palm rest tabs from the base assembly. Pull the palm rest forward, then carefully lift it up from the computer.
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
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.
1. Follow the procedures in Before Working on Your Computer.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Remove the modular drive (see Removing the Modular Drive).
4. Remove the hinge covers (see Removing the Hinge Covers).
5. Remove the heatsink assembly (see Removing the Processor Heatsink Assembly).
6. Remove the display assembly (see Removing the Display Assembly (E6400 and M2400) or Removing the Display Assembly (E6400 ATG)).
7. Remove the LED cover (see Removing the LED Cover).
8. Remove the keyboard (see Removing the Keyboard).
9. Remove the right speaker grill (see Removing the Right Speaker Grill/Fingerprint Reader Assembly).
10.Remove the palm rest assembly (Removing the Palm Rest Assembly).
11. If a card is in the card cage, remove the card.
12.Remove the two M2 x 3 screws.
13.Press down on the connector-end of the card cage, then grasp each side of the card cage and push it towards the back of the laptop.
14.Pivot the card cage up to a 45-degree angle, then lift it up from the connector and laptop.
1 M2 x 3 screws (2) 2 card cage
3 connector
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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.
Removing the System Board Assembly
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.
2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly).
3. Remove the card in the WWAN/FCM card slot, if present (see Removing a WWAN Card or Removing an FCM from the WWAN/FCM Slot).
4. Remove the card from the WLAN/WiMax card slot, if present (see Removing the WLAN/WiMax Card).
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) Cardan FCM from the WPAN/UWB/FCM Slot).
7. Remove the memory modules (see Removing a Memory Module).
8. Remove the heatsink assembly (see Removing the Processor Heatsink Assembly).
9. Remove the processor (see Removing the Processor Module).
10. Disconnect the coin-cell battery cable from the system board.
11. Remove the hard drive (see Removing the Hard Drive).
12. Remove the modular drive (see Removing the Modular Drive).
13. Remove the display assembly (see Removing the Display Assembly (E6400 and M2400) or Removing the Display Assembly (E6400 ATG)).
14. Remove the LED cover (see Removing the LED Cover).
15. Remove the keyboard (see Removing the Keyboard).
16. Remove the right speaker grill (see Removing the Right Speaker Grill/Fingerprint Reader Assembly).
17. Remove the palm rest assembly (see Removing the Palm Rest Assembly).
18. Remove the card cage (see Removing the Card Cage).
19. Disconnect the smart card cable from the system board.
20. Disconnect the 1394 daughtercard cable from the system board, and unroute the cable from the system board.
21. Remove three M2.5 x 5-mm screws labeled with white arrows from the system board.
22. Pull out on the top-left corner of the base assembly to release the connectors, while lifting the top-left corner of the system board.
23. Lift the top-right corner of the system board to disconnect the system board from the I/O card.
24. Disconnect the DC cable, which is connected to the bottom of the system board.
25. Lift the system board out of the base assembly.
1 smart card cable 2 system board
3 M2.5 x 5-mm system board screws (3) 4 DC cable
5 top-left corner of base assembly 6 I/O card
7 top-right corner of base assembly 8 1394 card cable
