Dell™ Latitude™ E6400 and E6400 ATG and Mobile Workstation Precision™ M2400 Service Manual Troubleshooting Working on Your Computer Base Assembly Hinge Covers Hard Drive WLAN/WiMax Card WWAN Card WPAN (UWB/BT) Card FCM Fan Processor Heatsink Assembly Processor Module Memory Coin-Cell Battery Modular Drive LED Cover Keyboard Modem Right Speaker Grill/Fingerprint Reader Assembly Palm Rest Assembly Card Cage 1394 Card RJ-11 Modem Connector System Board Assembly I/O Card DC Power Cable Battery Latch Assembly D
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. 2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly). 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. 2. Replace the two M2 x 3 screws. 3. Route and connect the 1394 cable to the system board. 4. Replace the card cage (see Replacing the Card Cage). 5. Replace the palm rest assembly (Replacing the Palm Rest Assembly). 6.
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. Removing the Bottom of the Base Assembly 1. Follow the procedures in Before Working on Your Computer. 2.
. 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.
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.
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. The removing and replacing procedures are primarily the same for the right and the left battery latch.
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. 1. Place the spring on the alignment bracket. 2. Place the battery release button underneath the base assembly. For the right battery latch assembly, slide the alignment bracket to the left to align the button with the hole in the alignment bracket.
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 Working on Your Computer Dell™ Latitude™ E6400 and E6400 ATG and Mobile Workstation Precision™ M2400 Service Manual Recommended Tools Before Working on Your Computer After Working on Your Computer This document provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that: l You have performed the steps in Before Working on Your Computer. l You have read the safety information that shipped with your computer.
7. Slide the battery out of the battery bay. 1 battery 2 battery release latches (2) 8. Disconnect any external devices and remove any installed cards before working on your computer: l To remove any installed cards, such as an ExpressCard, see the Dell™ Technology Guide on your computer or at support.dell.com. l To undock from a docking station, see the E-Port User's Guide or the E-Port Plus User's Guide on support.dell.com.
4. Replace the battery. Slide the battery into the battery bay until it clicks into place. 5. Connect your computer and all attached devices to their electrical outlets. 6. Turn on your computer.
Back to Contents Page Flashing the BIOS Dell™ Latitude™ E6400 and E6400 ATG and Mobile Workstation Precision™ M2400 Service Manual Flashing the BIOS From a CD Flashing the BIOS From the Hard Drive If a BIOS-update program CD is provided with a new system board, flash the BIOS from the CD. If you do not have a BIOS-update program CD, flash the BIOS from the hard drive. Flashing the BIOS From a CD NOTICE: Plug the AC adapter into a known good power source to prevent a loss of power.
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. 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.
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. 2. Replace the two M2 x 3 screws. 1 M2 x 3 screws (2) 2 base assembly 3 front of card cage 3. Replace the palm rest assembly (Replacing the Palm Rest Assembly). 4.
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. 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).
1 coin-cell battery 2 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 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. 2. Remove the bottom of the computer (see Removing the Bottom of the Base Assembly). 3.
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. NOTICE: Do not touch the processor die. Press and hold the processor down on the substrate on which the die is mounted while turning the cam screw to prevent intermittent contact between the cam screw and processor.
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. 1. Follow the instructions in Before Working on Your Computer. 2.
6. Follow the procedures in After Working on Your Computer.
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. 2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly). 3.
1 plastic plug 3 I/O card 2 M2 x 3-mm screw 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. 2. Replace the M2 x 3-mm screw to secure the I/O card to the base assembly. 3. Replace the plastic plug. 4. Replace the RJ-11 modem connector (see Replacing the RJ-11 Modem Connector). 5. Replace the modem (see Replacing the Modem). 6.
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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) Replacing the Display Assembly (E6400 ATG) Replacing the Display Hinges (E6400 and M2400) R
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. 2. Align the display hinges with the holes in the base of the computer, and lower the display into place. 3. Close the display and turn the computer upside down. 4.
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 5 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.
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. For WLAN, see Replacing the WLAN/WiMax Card. Place any unused antenna cables in the base assembly cable holders next to the card slot. 6. Connect the display cable to the display cable connector on the system board. 7.
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 Replacing the Display Bezel (E6400 and M2400) CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer. 1. Align the latch hook on the display panel with the small rectangular opening on the display bezel.
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)). 6. Replace the hinge covers (see Replacing the Hinge Covers). 7. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly). 8. Follow the procedures in After Working on Your Computer.
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. 1. Align the latch hook on the display panel with the small rectangular opening on the display bezel. 1 opening on display bezel 2 latch hook on display panel 2.
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)). 5. Remove the display bezel (see Removing the Display Bezel (E6400 and M2400)). 6. Remove the four M2.5 x 5-mm screws from the display panel. 7. Lift the display panel out of the display cover and carefully lay the display panel flat on your workspace.
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" (left) and "R" (right). 1. Replace the four M2 x 3-mm screws on the right bracket and the four M2 x 3-mm screws on the left bracket. 2. Place the display panel upside down on your workspace in front of the display cover. 3.
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. 8. Use the pull tab to disconnect the display cable. 1 display cable connector 2 display cable 3 underside of display panel 9.
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. 2. Connect the display cable to the connector on the back of the display panel. 3. Route the display cable around the notch on the display cover and set the display panel in place. 4. Replace the four M2.
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) 10. Remove four M2 x 3-mm screws from the right bracket and four M2 x 3-mm screws from the left bracket.
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). 11. Follow the procedures in After Working on Your Computer. Removing the Display Inverter (E6400 and M2400) CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer. 1.
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). 7. Follow the procedures in After Working on Your Computer. Removing the Display Hinges (E6400 and M2400) CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer. NOTE: The display hinge panels are labeled "L" (left) and "R" (right). 1. Follow the instructions in Working on Your Computer.
3. Replace the display panel (see Replacing the CCFL Display Panel and Brackets (E6400 and M2400) or Replacing the LED Display Panel and Brackets (E6400 and M2400)). 4. Replace the display bezel (see Replacing the Display Bezel (E6400 and M2400)). 5. Replace the display assembly (see Replacing the Display Assembly (E6400 and M2400)). 6. Replace the hinge covers (see Replacing the Hinge Covers). 7. Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly). 8.
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. 3. Replace the display panel (see Replacing the Display Panel and Brackets (E6400 ATG)). 4. Replace the display bezel (see Replacing the Display Bezel (E6400 ATG)). 5. Replace the display assembly (see Replacing the Display Assembly (E6400 ATG)). 6. Replace the hinge covers (see Replacing the Hinge Covers). 7.
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) or Replacing the Display Bezel (E6400 ATG)). 6. Replace the display assembly (see Replacing the Display Assembly (E6400 and M2400) or Replacing the Display Bezel (E6400 ATG)). 7. Replace the hinge covers (see Replacing the Hinge Covers). 8.
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. 2. Close the lever on the connector on the camera/microphone assembly. 3. Angle in and align the camera/microphone assembly with the notch on the display cover.
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. 2. Replace the M2.5 x 5-mm screw that secures the latch hook assembly to the display cover. 3. Replace the display bezel (see Replacing the Display Bezel (E6400 and M2400) or Replacing the Display Bezel (E6400 ATG)). 4.
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) or Replacing the Display Panel and Brackets (E6400 ATG)). 3.
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. 2. Remove the bottom of the base assembly (see Removing the Bottom of the Base Assembly). 3. Remove the two M2.
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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. The FCM is also known as Intel® Turbo Memory and the Intel Flash Cache Logic Chip Mini-card.
1 M2 x 3-mm screw 3 FCM 2 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. NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors on the module and on the system board, and realign the module.
1 holder by module 3 FCM 2 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 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.
1 hard drive bezel 2 pin on bezel bracket 3 hard drive 4 M3 x 3-mm screw Replacing the Hard Drive CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. NOTICE: Hard drives are extremely fragile. Exercise care when handling the hard drive. NOTICE: Use firm and even pressure to slide the hard drive into place. Excessive force may result in damage to the connector. 1. Hold the hard drive with the label facing down. 2.
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 7. Remove the two M2.5 x 5-mm screws from the cover of the hard drive carrier. 8. Lift the cover up at an angle and slide the tabs on the cover out from the carrier. 1 M2.5 x 5-mm screws (2) 2 cover 3 tabs (2) 9.
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) CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. NOTICE: Hard drives are extremely fragile. Exercise care when handling the hard drive. NOTICE: Use firm and even pressure to slide the hard drive into place.
3. Connect the hard drive to the connector in the carrier. 1 hard drive 2 hard drive carrier 3 connector 4. Slide the tabs on the cover under the lip on the hard drive carrier. 5. Replace the two M2.5 x 5-mm screws. 1 M2.5 x 5-mm screws 2 cover 3 lip on hard drive carrier (2) 4 tabs (2) 6. Place the pin on one end of the bezel into the hole on the hard drive. 7. On the other end of the bezel, replace the M3 x 3-mm screw that secures the hard drive bezel to the hard drive. 8.
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 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.
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 12. Remove the four M2.5 x 5 screws from the hard drive bracket. 1 hard drive carrier 2 M2.5 x 5-mm screws (4) 3 hard drive 13. 4 hard drive bracket Lift the hard drive up at an angle and disconnect it from the hard drive carrier.
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 CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. NOTICE: Hard drives are extremely fragile.
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. 3. Lower the hard drive into the hard drive bracket. 1 hard drive 2 connector 3 hard drive bracket 4 corner of hard drive bracket (2) 4. Place the hard drive into the carrier at an angle. 5.
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. 8. Set the cover in place and replace the three M2.5 x 5-mm screws. 1 notches in hard drive carrier 2 tabs on carrier cover 3 M2.5 x 5-mm screws (3) 9. 10. Slide the release latch carrier into the hard drive carrier. Replace the M2.
1 release latch 2 hard drive carrier 3 M2.5 x 5-mm screw 13. Slide the hard drive carrier into the modular bay. 14. Push the release latch in to hold the carrier in place. 1 hard drive carrier 2 release latch 15. If your computer has a security screw for the modular drive, replace the security screw. 16. Follow the procedures in After Working on Your Computer. 17. Install the operating system, drivers, and utilities for your computer, as needed.
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. The hinge covers are not interchangeable; the left one covers the DisplayPort connector and the right one covers the RJ-45 network connector. 1.
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. 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.
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 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.
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Back to Contents Page Memory Dell™ Latitude™ E6400 and E6400 ATG and Mobile Workstation Precision™ M2400 Service Manual Removing a Memory Module Replacing a Memory Module Your computer has two user-accessible SODIMM sockets. You can increase your computer memory by installing memory modules on the system board. See "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.
1 tab 2 notch 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. 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: l In Windows XP, right-click the My Computer icon on your desktop. Click Properties® General.
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. 2. Remove the LED cover (see Removing the LED Cover). 3. Remove the keyboard (Removing the Keyboard). 4. Remove the M2 x 3-mm screw from the modem.
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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 CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.
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. 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.
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. 1. Holding the palm rest at an angle, connect the front of the palm rest to the computer, securing all snaps. 2. Lower and snap the left side into place. 3.
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. 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.
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. 3. Replace the system board (see Replacing the System Board Assembly). 4. Replace the card cage (see Replacing the Card Cage). 5. Replace the palm rest assembly (see Replacing the Palm Rest Assembly). 6.
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. 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).
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). 6. Replace the LED cover (see Replacing the LED Cover). 7. Replace the display assembly (see Replacing the Display Assembly (E6400 and M2400) or Replacing the Display Assembly (E6400 ATG)). 8.
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.
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. 2.
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.
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 Replacing the System Board Assembly CAUTION: Before you begin the following procedure, follow the safety instructions that shipped with your computer. NOTICE: Ensure that any loose cables do not get caught beneath the system board. 1.
18. Replace the heatsink assembly (see Replacing the Processor Heatsink Assembly). 19. Replace the memory modules (see Replacing a Memory Module). 20. Replace the card in the WPAN/UWB/FCM card slot, if applicable (see Replacing a WPAN (UWB/BT) Card or Replacing an FCM). 21. Replace the card from the WLAN/WiMax card slot, if applicable (see Replacing the WLAN/WiMax Card). 22. Replace the card from the WWAN/FCM card slot, if applicable (see Replacing a WWAN Card or Replacing an FCM). 23.
Back to Contents Page Troubleshooting Dell™ Latitude™ E6400 and E6400 ATG and Mobile Workstation Precision™ M2400 Service Manual Troubleshooting Tools Solving Problems Dell Technical Update Service Dell Support Utility Troubleshooting Tools Diagnostic Lights CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. Your computer has three keyboard status lights located above the keyboard.
System failed in Option ROM initialization. l A possible modem failure has occurred. l l l If you have added any plug-in hardware with an option ROM, try removing or reseating it. If the problem persists, contact Dell Support. If available, install a working modem into your computer. If the problem persists, contact contact Dell Support.
¡ During the assessment, answer any questions that appear. ¡ If failures are detected during the Pre-boot System Assessment, write down the error code(s) and contact Dell Support. ¡ If the Pre-boot System Assessment completes successfully, the following message appears: "Booting Dell Diagnostic Utility Partition. Press any key to continue.
NOTE: Write down any error codes and problem descriptions exactly as they appear and follow the instructions on the screen. 10. After all tests have completed, close the test window to return to the Dell Diagnostics Main Menu. 11. Close the Main Menu window to exit the Dell Diagnostics and restart the computer. 12. Remove the Drivers and Utilities media from the optical drive.
Error Messages CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. If the error message is not listed, see the documentation for the operating system or the program that was running when the message appeared. A filename cannot contain any of the following characters: \ / : * ? " < > | — Do not use these characters in filenames. A required .
Ensure that Microsoft Windows Recognizes the drive — Windows XP: l Click Start and click My Computer. Windows Vista: l Click the Windows Vista Start button and click Computer. If the drive is not listed, perform a full scan with your antivirus software to check for and remove viruses. Viruses can sometimes prevent Windows from recognizing the drive. Test the drive l l Insert another disc to eliminate the possibility that the original drive is defective.
Run Check Disk — Windows XP: 1. 2. 3. 4. Click Start and click My Computer. Right-click Local Disk C:. Click Properties® Tools® Check Now. Click Scan for and attempt recovery of bad sectors and click Start. Windows Vista: 1. 2. 3. Click Start and click Computer. Right-click Local Disk C:. Click Properties® Tools® Check Now. The User Account Control window may appear. If you are an administrator on the computer, click Continue; otherwise, contact your administrator to continue the desired action. 4.
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. A program stops responding End the program 1. 2. 3. 4. Press simultaneously to access the Task Manager. Click the Applications tab.
Use a virus-scanning program to check the hard drive, floppy disks, CDs, or DVDs Save and close any open files or programs and shut down your computer through the Start menu Memory Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer. If you receive an insufficient memory message — l l l l Save and close any open files and exit any open programs you are not using to see if that resolves the problem.
No sound from headphones Check the headphone cable connection — Ensure that the headphone cable is securely inserted into the headphone connector. See the Setup and Quick Reference Guide for your computer at support.dell.com. Adjust the Windows volume control — Click or double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted.
utility for self-support information, software updates, and health scans of your computing environment. Accessing the Dell Support Utility Access the Dell Support Utility from the icon on the taskbar or from the Start menu. If the Dell Support icon does not appear in your taskbar: 1. Click Start® All Programs® Dell Support® Dell Support Settings. 2. Ensure that the Show icon on the taskbar option is checked. NOTE: If the Dell Support Utility is not available from the Start menu, go to support.dell.
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. Removing the WLAN/WiMax Card 1. Follow the procedures in Before Working on Your Computer. 2.
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. NOTICE: Insert a WLAN or WiMax card only into the slot labeled WLAN/WiMax. 1. Slide the card into the connector labeled WLAN/WiMax. 2. Press the card down and hold it in place. 3.
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. 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.
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. NOTICE: Insert a WPAN card only into the slot labeled WPAN/UWB/FCM. 1. Slide the card into the connector labeled WPAN/UWB/FCM. 2. Press the card down and hold it in place. 3. Replace the M2 x 3-mm screw.
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. Removing a WWAN Card 1. Follow the procedures in Before Working on Your Computer. 2.
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. NOTICE: Insert a WWAN card or FCM only into the slot labeled WWAN/FCM. 1. Slide the card into the connector labeled WWAN/FCM. 2. Press the card down and hold it in place. 3. Replace the M2 x 3-mm screw. 4.