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Dell d400 - Latitude - Pentium M 1.3 GHz Service Manual

Service manual
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Download this manual See also: Service Manual, Information Manual
Dell Latitude D400 Service Manual
Dell™ Latitude™ D400 Service Manual
Before You Begin
Preparing to Work Inside the Computer
Recommended Tools
Computer Orientation
Screw Identification
Using the Dell Diagnostics
When to Use the Dell Diagnostics
Features of the Dell Diagnostics
Starting the Dell Diagnostics
System Components
Keyboard
Removing the Keyboard
Installing the Keyboard
Memory
Installing a Memory Module Under the Memory
Module/Modem Cover
Installing a Memory Module Under the Keyboard
Mini PCI Card
Modem
Hard Drive
Removing the Hard Drive
Installing the Hard Drive
Removing the Interposer
Replacing the Interposer
Docking Doors
Removing the Docking Doors
Installing the Docking Doors
Bluetooth™
Display
Removing the Display Assembly
Replacing the Display Latch
Palm Rest
Cooling Fan
file:///F|/Service%20Manuals/Dell/Latitude/d400/index.htm (1 of 3) [2/28/2004 8:05:56 AM]

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Summary of Contents for Dell d400 - Latitude - Pentium M 1.3 GHz

  • Page 1 Installing the Hard Drive Removing the Interposer Replacing the Interposer Docking Doors Removing the Docking Doors Installing the Docking Doors Bluetooth™ Display Removing the Display Assembly Replacing the Display Latch Palm Rest Cooling Fan file:///F|/Service%20Manuals/Dell/Latitude/d400/index.htm (1 of 3) [2/28/2004 8:05:56 AM]...
  • Page 2 A CAUTION indicates a potential for property damage, personal injury, or death. Trademarks used in this text: Dell, the DELL logo, and Latitude are trademarks of Dell Inc.; Microsoft and Windows are registered trademarks of Microsoft Corporation; Bluetooth is a trademark owned by Bluetooth SIG, Inc.
  • Page 3 Dell Latitude D400 Service Manual Model PPT October 2003 Rev. A02 file:///F|/Service%20Manuals/Dell/Latitude/d400/index.htm (3 of 3) [2/28/2004 8:05:56 AM]...

  • Page 4: Before You Begin

    CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions in the System Information Guide that came with the computer.
  • Page 5 Before You Begin: Dell Latitude D400 Service Manual NOTE: Ensure that the computer is off and not in a power management mode. If you cannot shut down the computer using the computer operating system, press and hold the power button for 4 seconds.

  • Page 6: Recommended Tools

    Before You Begin: Dell Latitude D400 Service Manual Recommended Tools The procedures in this manual require the following tools: Phillips screwdriver Flat-blade screwdriver Small plastic scribe Flash BIOS update program floppy disk or CD Computer Orientation file:///F|/Service%20Manuals/Dell/Latitude/d400/begin.htm (3 of 7) [2/28/2004 8:06:07 AM]...

  • Page 7: Screw Identification

    Before You Begin: Dell Latitude D400 Service Manual 1 back 2 right 3 front 4 left Screw Identification When you are removing and replacing components, photocopy "Screw Identification" as a tool to lay out and keep track of the screws. The screw identification chart provides the number of screws and their sizes.

  • Page 8: Hard Drive

    Before You Begin: Dell Latitude D400 Service Manual keyboard modem hard drive (two each) (one each) (four each) 1428U 1428U 2864D display removal display bezel display latch (six each) (six each) (two each) 4911U 7166P 5H953 file:///F|/Service%20Manuals/Dell/Latitude/d400/begin.htm (5 of 7) [2/28/2004 8:06:07 AM]...

  • Page 9: System Board

    Before You Begin: Dell Latitude D400 Service Manual palm rest system board (thirteen each) (three each) (six each) 4911U 1428U 1428U (two each) (one each, if a BIOS card is present) 1428U 5H953 speakers (two each) 4911U Back to Contents Page...
  • Page 10 Before You Begin: Dell Latitude D400 Service Manual file:///F|/Service%20Manuals/Dell/Latitude/d400/begin.htm (7 of 7) [2/28/2004 8:06:07 AM]...

  • Page 11: Using The Dell Diagnostics

    Whenever a major component or device in your computer does not function properly, you may have a component failure. If you are experiencing a problem with your Dell™ computer, perform the checks in the "Solving Problems" section in the User's Guide and run the Dell Diagnostics before you call Dell for technical assistance.

  • Page 12: Starting The Dell Diagnostics

    Error messages that appear if any problems are detected Starting the Dell Diagnostics The Dell Diagnostics is located on a hidden Diagnostic utility partition on your hard drive. NOTE: If your computer cannot display a screen image, contact Dell. See the User's Guide for contact information.
  • Page 13 Booting Dell Diagnostic Utility Partition. Press any key to continue. 6. Press any key to start the Dell Diagnostics from the Diagnostics utility partition on your hard drive. 7. After the Dell Diagnostics loads and the Main Menu screen appears, click the button for the option you want.
  • Page 14 Write down the error code and problem description and follow the instructions on the screen. If you cannot resolve the error condition, contact Dell. See the User's Guide for contact information. 9. If you run a test from the Custom Test or Symptom Tree option, click the applicable tab described in the following table for more information.
  • Page 15 Allows you to customize the test by changing the test settings. 10. When you have finished running a test, close the screen to return to the Main Menu screen. To exit the Dell Diagnostics and reboot the computer, close the Main Menu screen.

  • Page 16: System Components

    System Components NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. NOTICE: Unless otherwise noted, each procedure in this document assumes that a part can be replaced by performing the removal procedure in reverse order.
  • Page 17 2X370 15 reserve battery 3U490 7 Hard drive controller 2X372 16 display connector 2X241 card 8 system board See Mini RSL 17 center control cover 5U447 9 fan 6U568 Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/system.htm (2 of 2) [2/28/2004 8:06:09 AM]...

  • Page 18: Removing The Keyboard

    3. Use a plastic scribe or, if a plastic scribe is not available, carefully use a small flat-blade screwdriver to lift the notched right edge of the center control cover, and pry the cover loose from the bottom case. file:///F|/Service%20Manuals/Dell/Latitude/d400/keyboard.htm (1 of 5) [2/28/2004 8:06:10 AM]...

  • Page 19: Bottom Case

    1 center control cover 5U447 4. Remove the two M2 x 5-mm screws from the top of the keyboard. 5. Use the pull-tab to pull the keyboard up and out (toward the display) of the bottom case. file:///F|/Service%20Manuals/Dell/Latitude/d400/keyboard.htm (2 of 5) [2/28/2004 8:06:10 AM]...
  • Page 20 6. Rest the keyboard face down on the palm rest. 7. Pull straight up on the pull-tab that is attached to the keyboard connector to disconnect the connector from the interface connector on the system board. file:///F|/Service%20Manuals/Dell/Latitude/d400/keyboard.htm (3 of 5) [2/28/2004 8:06:10 AM]...

  • Page 21: Installing The Keyboard

    3. Replace the two screws at the top of the keyboard. 4. Replace the center control cover and snap it down starting on the left side and working to the right side so that it is flush with the palm rest. file:///F|/Service%20Manuals/Dell/Latitude/d400/keyboard.htm (4 of 5) [2/28/2004 8:06:10 AM]...
  • Page 22 Keyboard: Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/keyboard.htm (5 of 5) [2/28/2004 8:06:10 AM]...
  • Page 23 "Installing a Memory Module Under the Keyboard" Installing a Memory Module Under the Memory Module/Modem Cover 1. Turn the computer over, loosen the captive screws on the memory module/modem cover, and then remove the cover. file:///F|/Service%20Manuals/Dell/Latitude/d400/memory.htm (1 of 7) [2/28/2004 8:06:11 AM]...
  • Page 24 2. If you are replacing a memory module, remove the existing module: a. Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up. b. Remove the module from the connector. file:///F|/Service%20Manuals/Dell/Latitude/d400/memory.htm (2 of 7) [2/28/2004 8:06:11 AM]...
  • Page 25 If you do not feel the click, remove the module and reinstall it. NOTE: If the memory module is not installed properly, the computer may not boot properly. No error message indicates this failure. file:///F|/Service%20Manuals/Dell/Latitude/d400/memory.htm (3 of 7) [2/28/2004 8:06:11 AM]...
  • Page 26 In the Microsoft® Windows® XP operating system, click the Start button, click Help and Support, and then click Computer Information. In Windows 2000, right-click the My Computer icon on your desktop, and then click the General tab. file:///F|/Service%20Manuals/Dell/Latitude/d400/memory.htm (4 of 7) [2/28/2004 8:06:11 AM]...
  • Page 27 Installing a Memory Module Under the Keyboard Remove the keyboard. 2. Loosen the two captive screws in the cover labeled "DIMM1." 1 captive screws (2) 2 DIMM1 cover 2X386 3 memory module See Mini RSL file:///F|/Service%20Manuals/Dell/Latitude/d400/memory.htm (5 of 7) [2/28/2004 8:06:11 AM]...
  • Page 28 7. Insert the battery into the battery bay, or connect the AC adapter to your computer and an electrical outlet. 8. Turn on the computer. As the computer boots, it detects the additional memory and automatically updates file:///F|/Service%20Manuals/Dell/Latitude/d400/memory.htm (6 of 7) [2/28/2004 8:06:11 AM]...
  • Page 29 In Windows XP, click the Start button, click Help and Support, and then click Computer Information. In Windows 2000, right-click the My Computer icon on your desktop, and then click the General tab. Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/memory.htm (7 of 7) [2/28/2004 8:06:11 AM]...

  • Page 30: Mini Pci Card

    3. If a Mini PCI card is not already installed, go to step 4. If you are replacing a Mini PCI card, remove the existing card: a. Disconnect the Mini PCI card from the attached cables. file:///F|/Service%20Manuals/Dell/Latitude/d400/minipci.htm (1 of 4) [2/28/2004 8:06:12 AM]...
  • Page 31 2 Mini PCI card 9Y200 3X548 J0846 b. Release the Mini PCI card by spreading the metal securing tabs until the card pops up slightly. c. Lift the Mini PCI card out of its connector. file:///F|/Service%20Manuals/Dell/Latitude/d400/minipci.htm (2 of 4) [2/28/2004 8:06:12 AM]...
  • Page 32 4. Align the Mini PCI card with the connector at a 45-degree angle, and press the Mini PCI card into the connector until you feel a click. file:///F|/Service%20Manuals/Dell/Latitude/d400/minipci.htm (3 of 4) [2/28/2004 8:06:12 AM]...
  • Page 33 5. Connect the antenna cables to the Mini PCI card, with the white cable in the Mini PCI connector closer to the palm rest, and the black cable in the Mini PCI card connector closer to the display. Replace the keyboard. Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/minipci.htm (4 of 4) [2/28/2004 8:06:12 AM]...
  • Page 34 Ground yourself by touching a metal connector on the back of the computer. Continue to ground yourself periodically during this procedure. 2. Turn the computer over, loosen the captive screws on the memory module/modem cover, and then remove the cover. file:///F|/Service%20Manuals/Dell/Latitude/d400/modem.htm (1 of 3) [2/28/2004 8:06:12 AM]...
  • Page 35 NOTICE: The cable connectors are keyed for correct insertion; do not force the connections. 5. Align the modem with the screw hole, and press the modem into the connector on the system board. file:///F|/Service%20Manuals/Dell/Latitude/d400/modem.htm (2 of 3) [2/28/2004 8:06:12 AM]...
  • Page 36 Modem: 6. Install the screw to secure the modem to the system board. 7. Replace the modem cover. Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/modem.htm (3 of 3) [2/28/2004 8:06:12 AM]...

  • Page 37: Removing The Hard Drive

    Hard drives are extremely fragile; even a slight bump can damage the drive. NOTE: Dell does not guarantee compatibility or provide support for hard drives from sources other than Dell. To remove the hard drive in the hard drive bay: 1.

  • Page 38: Installing The Hard Drive

    See Mini RSL 3. Slide the hard drive out of the computer. Installing the Hard Drive 1. Remove the new drive from its packaging. Save the original packaging for storing or shipping the hard drive. file:///F|/Service%20Manuals/Dell/Latitude/d400/hdd.htm (2 of 5) [2/28/2004 8:06:13 AM]...
  • Page 39 2. Remove the hard drive. 3. Remove the two M3 x 3-mm screws from the side of the hard drive, and remove the hard drive carrier. file:///F|/Service%20Manuals/Dell/Latitude/d400/hdd.htm (3 of 5) [2/28/2004 8:06:13 AM]...
  • Page 40 1. Attach the hard drive carrier to the new hard drive, and replace the two M3 x 3- mm screws. 2. Carefully attach the interposer from the old hard drive by pushing it straight onto the hard drive. Ensure that the pins are oriented correctly. When the file:///F|/Service%20Manuals/Dell/Latitude/d400/hdd.htm (4 of 5) [2/28/2004 8:06:13 AM]...
  • Page 41 Hard Drive: interposer is attached correctly, four extra pins are on one side. 1 interposer 8267R 3. Install the hard drive. Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/hdd.htm (5 of 5) [2/28/2004 8:06:13 AM]...
  • Page 42 1. Follow the instructions in "Preparing to Work Inside the Computer" to remove the battery and prepare the computer for work. 2. Gently bend the docking doors and lift them away from the computer base. file:///F|/Service%20Manuals/Dell/Latitude/d400/dockdoor.htm (1 of 3) [2/28/2004 8:06:14 AM]...
  • Page 43 Docking Doors: 1 docking doors 8X516 Installing the Docking Doors Slide the side of the docking doors with the spring over the longer posts. file:///F|/Service%20Manuals/Dell/Latitude/d400/dockdoor.htm (2 of 3) [2/28/2004 8:06:14 AM]...
  • Page 44 Docking Doors: 1 docking doors with spring 8X516 2 longer post Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/dockdoor.htm (3 of 3) [2/28/2004 8:06:14 AM]...
  • Page 45 Computer" to remove the battery and prepare the computer for work. 2. Turn the computer over, loosen the captive screw in the Bluetooth module cover, and remove the cover. 1 Bluetooth module cover 0X737 file:///F|/Service%20Manuals/Dell/Latitude/d400/blue.htm (1 of 3) [2/28/2004 8:06:15 AM]...
  • Page 46 4. Ensure that the front of the Bluetooth module (silver) is facing outward, and connect the cable to the module. 5. Insert the module into the slot. 6. Replace the cover and tighten the captive screw. file:///F|/Service%20Manuals/Dell/Latitude/d400/blue.htm (2 of 3) [2/28/2004 8:06:15 AM]...
  • Page 47 Bluetooth™: Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/blue.htm (3 of 3) [2/28/2004 8:06:15 AM]...

  • Page 48: Removing The Display Assembly

    2. Remove the battery. 3. Remove the hard drive. 4. Remove the center control cover. 5. Remove the two M2.5 x 6-mm screws next to each hinge. file:///F|/Service%20Manuals/Dell/Latitude/d400/display.htm (1 of 4) [2/28/2004 8:06:16 AM]...

  • Page 49: Replacing The Display Latch

    7. Use the pull-tab to disconnect the display-feed flex cable from its connector on the system board. 8. Move the display assembly to an upright position and pull it up out of the computer. Replacing the Display Latch file:///F|/Service%20Manuals/Dell/Latitude/d400/display.htm (2 of 4) [2/28/2004 8:06:16 AM]...
  • Page 50 4. Open the display 180 degrees, and remove the two rubber screw covers, four rubber screw bumpers, and the six M2.5 x 4-mm screws that secure the bezel. 1 rubber screw bumpers 6U549 file:///F|/Service%20Manuals/Dell/Latitude/d400/display.htm (3 of 4) [2/28/2004 8:06:16 AM]...
  • Page 51 6. Remove the two display latch screws, and remove the display latch. 1 M2 x 1.8-mm screws (2) 5H953 2 display latch NOTICE: When you replace the bezel, ensure that the display cable is routed correctly. Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/display.htm (4 of 4) [2/28/2004 8:06:16 AM]...

  • Page 52: Palm Rest

    You must remove the display assembly before you remove the palm rest; the display hinges pass through the back of the palm rest. 4. Remove the display. 5. Turn the computer over and remove the nine M2.5 x 6-mm screws. file:///F|/Service%20Manuals/Dell/Latitude/d400/palmrest.htm (1 of 5) [2/28/2004 8:06:17 AM]...
  • Page 53 2 M 2.5 x 6-mm screws (9) 4911U 6. Remove the two M2 x 1.8-mm screws located inside the battery bay. 7. Turn the computer over and remove the four M2.5 x 6-mm screws. file:///F|/Service%20Manuals/Dell/Latitude/d400/palmrest.htm (2 of 5) [2/28/2004 8:06:17 AM]...
  • Page 54 Palm Rest: 1 M2.5 x 6-mm screws (4) 4911U 8. Disconnect the speaker connector, and remove the speaker cable. file:///F|/Service%20Manuals/Dell/Latitude/d400/palmrest.htm (3 of 5) [2/28/2004 8:06:17 AM]...
  • Page 55 Palm Rest: 1 ZIF connector 2 speaker connector 9. Pull up on the palm rest connector tab, and disconnect the ZIF connector from the system board. 10. Disengage the four battery bay tabs. file:///F|/Service%20Manuals/Dell/Latitude/d400/palmrest.htm (4 of 5) [2/28/2004 8:06:17 AM]...
  • Page 56 Palm Rest: 11. Lift the palm rest away. Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/palmrest.htm (5 of 5) [2/28/2004 8:06:17 AM]...

  • Page 57: Cooling Fan

    3. Remove the hard drive. 4. Remove the keyboard. 5. Remove the display. 6. Remove the palm rest. 7. Remove the fan cable from the fan extender cable that runs under the system board. file:///F|/Service%20Manuals/Dell/Latitude/d400/fan.htm (1 of 2) [2/28/2004 8:06:17 AM]...
  • Page 58 1 fan cable 2 M2 x 5-mm screws (3) 1428U 8. Remove the three M2 x 5-mm screws that secure the cooling fan. 9. Lift out the cooling fan. Back to Contents Page file:///F|/Service%20Manuals/Dell/Latitude/d400/fan.htm (2 of 2) [2/28/2004 8:06:17 AM]...

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