Dell Latitude D400 Service Manual
  1. Manuals
  2. Brands
  3. Dell Manuals
  4. Laptop
  5. d400 - Latitude - Pentium M 1.3 GHz
  6. Service manual
Dell Latitude D400 Service Manual

Dell Latitude D400 Service Manual

Hide thumbs Also See for Latitude D400:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Information Manual, User Manual
Dell Latitude D400 Service Manual

Advertisement

Table of Contents
loading

Related Manuals for Dell Latitude D400

Summary of Contents for Dell Latitude D400

  • Page 1 Thank you for purchasing this Factory Service Manual CD/DVD from servicemanuals4u.com. Please check out our eBay auctions for more great deals on Factory Service Manuals: servicemanuals4u...
  • Page 2 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...
  • Page 3 Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. 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. and is used by Dell Inc.

  • 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: Recommended Tools

    Before You Begin: Dell Latitude D400 Service Manual 6. To avoid possible damage to the system board, wait 10 to 20 seconds and then disconnect any attached devices. 7. Disconnect all other external cables from the computer. 8. Remove any installed PC Cards from the PC Card slot.

  • Page 6: Computer Orientation

    Before You Begin: Dell Latitude D400 Service Manual Flat-blade screwdriver Small plastic scribe Flash BIOS update program floppy disk or CD Computer Orientation 1 back 2 right 3 front 4 left file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...ok/Latitude/D400/D400_SERVICE_MANUAL/begin.htm (3 of 6)6/21/2004 1:56:01 AM...

  • Page 7: Screw Identification

    Before You Begin: Dell Latitude D400 Service Manual 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 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 9 Before You Begin: Dell Latitude D400 Service Manual file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...ok/Latitude/D400/D400_SERVICE_MANUAL/begin.htm (6 of 6)6/21/2004 1:56:01 AM...

  • Page 10: Using The Dell Diagnostics

    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. Running the Dell Diagnostics may help you to resolve the problem yourself quickly without having to contact Dell for assistance.

  • Page 11: Starting The Dell Diagnostics

    If you do not see anything on your display, hold down the mute button and press the power button (instead of <F12>) to begin the Dell Diagnostics. You do not need to highlight Diagnostics and press <Enter>. The computer automatically runs the Pre-boot System Assessment.
  • Page 12 If the Pre-boot System Assessment completes successfully, you receive the message 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 13 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. Back to Contents Page...

  • Page 14: 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 15 6 metal shield 2X370 15 reserve battery 3U490 7 Hard drive controller card 2X372 16 display connector 2X241 8 system board See Mini RSL 17 center control cover 5U447 9 fan 6U568 Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...k/Latitude/D400/D400_SERVICE_MANUAL/system.htm (2 of 2)6/21/2004 1:56:03 AM...

  • Page 16: 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/keyboard.htm (1 of 5)6/21/2004 1:56:04 AM...
  • Page 17 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/keyboard.htm (2 of 5)6/21/2004 1:56:04 AM...
  • Page 18 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/keyboard.htm (3 of 5)6/21/2004 1:56:04 AM...

  • Page 19: Installing 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. Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/keyboard.htm (4 of 5)6/21/2004 1:56:04 AM...
  • Page 20 Keyboard: file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/keyboard.htm (5 of 5)6/21/2004 1:56:04 AM...
  • Page 21 "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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/L.../Latitude/D400/D400_SERVICE_MANUAL/memory.htm (1 of 6)6/21/2004 1:56:06 AM...
  • Page 22 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/L.../Latitude/D400/D400_SERVICE_MANUAL/memory.htm (2 of 6)6/21/2004 1:56:06 AM...
  • Page 23 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/L.../Latitude/D400/D400_SERVICE_MANUAL/memory.htm (3 of 6)6/21/2004 1:56:06 AM...
  • Page 24 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. Installing a Memory Module Under the Keyboard file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/L.../Latitude/D400/D400_SERVICE_MANUAL/memory.htm (4 of 6)6/21/2004 1:56:06 AM...
  • Page 25 5 securing tabs (3) NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory-module securing clips. 3. If you are replacing a memory module, remove the existing module: file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/L.../Latitude/D400/D400_SERVICE_MANUAL/memory.htm (5 of 6)6/21/2004 1:56:06 AM...
  • Page 26 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/L.../Latitude/D400/D400_SERVICE_MANUAL/memory.htm (6 of 6)6/21/2004 1:56:06 AM...

  • Page 27: 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/minipci.htm (1 of 4)6/21/2004 1:56:06 AM...
  • Page 28 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/minipci.htm (2 of 4)6/21/2004 1:56:06 AM...
  • Page 29 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. 5. Connect the antenna cables to the Mini PCI card, with the white cable in the Mini PCI connector file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/minipci.htm (3 of 4)6/21/2004 1:56:06 AM...
  • Page 30 Mini PCI Card: 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/minipci.htm (4 of 4)6/21/2004 1:56:06 AM...
  • Page 31 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/L...k/Latitude/D400/D400_SERVICE_MANUAL/modem.htm (1 of 2)6/21/2004 1:56:07 AM...
  • Page 32 5. Align the modem with the screw hole, and press the modem into the connector on the system board. 6. Install the screw to secure the modem to the system board. 7. Replace the modem cover. Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/L...k/Latitude/D400/D400_SERVICE_MANUAL/modem.htm (2 of 2)6/21/2004 1:56:07 AM...

  • Page 33: 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 34: Installing The Hard Drive

    3. Replace and tighten the two M3 x 3-mm screws. 4. Use the Operating System CD to install the operating system for your computer. 5. Use the Drivers and Utilities CD to install the drivers and utilities for your computer. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...20ok/Latitude/D400/D400_SERVICE_MANUAL/hdd.htm (2 of 5)6/21/2004 1:56:08 AM...
  • Page 35 3. Remove the two M3 x 3-mm screws from the side of the hard drive, and remove the hard drive carrier. 1 M3 x 3-mm screws (2) 2864D 2 hard drive carrier 7X499 4. Carefully remove the interposer by pulling it straight off the hard drive. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...20ok/Latitude/D400/D400_SERVICE_MANUAL/hdd.htm (3 of 5)6/21/2004 1:56:08 AM...
  • Page 36 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 interposer is attached correctly, four extra pins are on one side. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...20ok/Latitude/D400/D400_SERVICE_MANUAL/hdd.htm (4 of 5)6/21/2004 1:56:08 AM...
  • Page 37 Hard Drive: 1 interposer 8267R 3. Install the hard drive. Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...20ok/Latitude/D400/D400_SERVICE_MANUAL/hdd.htm (5 of 5)6/21/2004 1:56:08 AM...
  • Page 38 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/dockdoor.htm (1 of 3)6/21/2004 1:56:09 AM...
  • Page 39 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/dockdoor.htm (2 of 3)6/21/2004 1:56:09 AM...
  • Page 40 Docking Doors: 1 docking doors with spring 8X516 2 longer post Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/dockdoor.htm (3 of 3)6/21/2004 1:56:09 AM...
  • Page 41 2. Turn the computer over, loosen the captive screw in the Bluetooth module cover, and remove the cover. 1 Bluetooth module cover 0X737 2 captive screw 3 battery bay file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...0ok/Latitude/D400/D400_SERVICE_MANUAL/blue.htm (1 of 2)6/21/2004 1:56:10 AM...
  • Page 42 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. Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...0ok/Latitude/D400/D400_SERVICE_MANUAL/blue.htm (2 of 2)6/21/2004 1:56:10 AM...

  • Page 43: Removing The Display Assembly

    Computer" to remove the battery and prepare the computer for work. 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/display.htm (1 of 4)6/21/2004 1:56:11 AM...

  • Page 44: Replacing The Display Latch

    System Information Guide. NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/display.htm (2 of 4)6/21/2004 1:56:11 AM...
  • Page 45 7116P 5. Use your fingers to carefully pry around the perimeter of the bezel until the bezel separates from the display assembly. 6. Remove the two display latch screws, and remove the display latch. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/display.htm (3 of 4)6/21/2004 1:56:11 AM...

  • Page 46: Display Latch

    Display: 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/display.htm (4 of 4)6/21/2004 1:56:11 AM...

  • Page 47: 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/palmrest.htm (1 of 5)6/21/2004 1:56:12 AM...
  • Page 48 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/palmrest.htm (2 of 5)6/21/2004 1:56:12 AM...
  • Page 49 Palm Rest: 1 M2.5 x 6-mm screws (4) 4911U 8. Disconnect the speaker connector, and remove the speaker cable. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/palmrest.htm (3 of 5)6/21/2004 1:56:12 AM...
  • Page 50 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/palmrest.htm (4 of 5)6/21/2004 1:56:12 AM...
  • Page 51 Palm Rest: 11. Lift the palm rest away. Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/palmrest.htm (5 of 5)6/21/2004 1:56:12 AM...

  • Page 52: 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...20ok/Latitude/D400/D400_SERVICE_MANUAL/fan.htm (1 of 2)6/21/2004 1:56:13 AM...
  • Page 53 Cooling Fan: 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:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...20ok/Latitude/D400/D400_SERVICE_MANUAL/fan.htm (2 of 2)6/21/2004 1:56:13 AM...

  • Page 54: Touch Pad

    PC Card. 3. Remove the hard drive. 4. Remove the keyboard. 5. Remove the display. 6. Remove the palm rest. 7. Gently lift up the touch pad using the pull-tab. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/touchpad.htm (1 of 4)6/21/2004 1:56:13 AM...
  • Page 55 Touch Pad: 1 touch pad D1690 2 pull-tab 8. Very carefully remove the touch pad cable from the touch-pad ZIF connector. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/touchpad.htm (2 of 4)6/21/2004 1:56:14 AM...
  • Page 56 9. If you damage the cable while detaching or attaching it to the touch pad ZIF connector, remove the touch pad cable from the system-board ZIF connector and repeat the procedure using a new touch pad cable. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/touchpad.htm (3 of 4)6/21/2004 1:56:14 AM...
  • Page 57 Touch Pad: 1 touch pad cable D1690 2 system-board ZIF connector Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/touchpad.htm (4 of 4)6/21/2004 1:56:14 AM...

  • Page 58: System Board

    5. Remove the display. 6. Remove the palm rest. 7. If the system board has a removable BIOS chip, remove the M2 x 5-mm screw and lift the BIOS chip from the system board. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/sysboard.htm (1 of 7)6/21/2004 1:56:15 AM...
  • Page 59 System Board: 1 M2 x 5-mm screw 1428U 8. Disconnect the smart card cable from the system board. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/sysboard.htm (2 of 7)6/21/2004 1:56:15 AM...
  • Page 60 1 smart card cable 9. Unroute and disconnect the Bluetooth™ cable from the system board. 1 Bluetooth cable 10. Remove the four M2 x 5-mm screws from the metal shield, and remove the metal shield. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/sysboard.htm (3 of 7)6/21/2004 1:56:15 AM...
  • Page 61 System Board: 1 M2 x 5-mm screws (4) 1428U 2 EMI shield 2X370 11. Remove the two M2 x 5-mm screws, and remove the daughter card. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/sysboard.htm (4 of 7)6/21/2004 1:56:15 AM...
  • Page 62 System Board: 1 M2 x 5-mm screws 1428U 2 Hard drive controller card 2X372 12. Disconnect the fan cable. 13. Remove the system board from the computer base. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/sysboard.htm (5 of 7)6/21/2004 1:56:15 AM...
  • Page 63 System Board: 1 system board See Mini RSL 2 computer base D2389 14. Remove the infrared sensor cover. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/sysboard.htm (6 of 7)6/21/2004 1:56:15 AM...

  • Page 64: Replacing The System Board

    Follow the instructions on the screen. NOTE: After replacing the system board, be sure to enter the computer's Service Tag into the BIOS of the replacement system board. Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...Latitude/D400/D400_SERVICE_MANUAL/sysboard.htm (7 of 7)6/21/2004 1:56:15 AM...

  • Page 65: Reserve Battery

    Note the reserve battery location before you remove it so that you can put the replacement reserve battery in the same location. 6. Lift out the reserve battery, and disconnect it from the system board connector. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/reserve.htm (1 of 2)6/21/2004 1:56:16 AM...
  • Page 66 Reserve Battery: 1 reserve battery 3U490 2 system board connector Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/reserve.htm (2 of 2)6/21/2004 1:56:16 AM...

  • Page 67: Flashing The Bios

    5. Press <Esc>, select Save changes and reboot, and press <Enter> to save configuration changes. 6. Remove the flash BIOS update program floppy disk or CD from the drive and restart the computer. Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LAPT...%20ok/Latitude/D400/D400_SERVICE_MANUAL/bios.htm6/21/2004 1:56:16 AM...
  • Page 68 To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer. Follow the instructions in the palm rest section. The replacement palm rest contains the replacement speakers. Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LAPTO...ok/Latitude/D400/D400_SERVICE_MANUAL/speakers.htm6/21/2004 1:56:17 AM...

  • Page 69: Battery Latch

    PC Card. 3. Remove the keyboard. 4. Remove the display. 5. Remove the palm rest. 6. Remove the system board. 7. Press down on the battery latch to remove it. file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...ok/Latitude/D400/D400_SERVICE_MANUAL/latch.htm (1 of 2)6/21/2004 1:56:17 AM...
  • Page 70 Battery Latch: 1 spring 2 battery latch 3 battery latch locking arm 8. Press in the spring and pull up on the battery latch locking arm. Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...ok/Latitude/D400/D400_SERVICE_MANUAL/latch.htm (2 of 2)6/21/2004 1:56:17 AM...

  • Page 71: Usb Connector

    Pin Assignments for I/O Connectors: Back to Contents Page Pin Assignments for I/O Connectors USB Connector Video Connector Serial Connector Dell D/Bay Connector USB Connector Signal USB5V+ USBP– USBP+ Video Connector file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/pinouts.htm (1 of 4)6/21/2004 1:56:18 AM...

  • Page 72: Serial Connector

    Pin Assignments for I/O Connectors: Signal Signal CRT_R CRT_G CRT_B MONITOR_DETECT– DDC_DATA CRT_HS CRT_VS DDC_CLK Serial Connector file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/pinouts.htm (2 of 4)6/21/2004 1:56:18 AM...
  • Page 73 Pin Assignments for I/O Connectors: Signal Signal RXDA TXDA Dell D/Bay Connector Signal Signal USB_VCC SMB_CLK USB_D- USB_D+ SHIELD GND USB_GND SHIELD GND PWR_SRC SHIELD GND file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/pinouts.htm (3 of 4)6/21/2004 1:56:18 AM...
  • Page 74 Pin Assignments for I/O Connectors: SMB_DAT SHIELD GND MODPRES# SHIELD GND Back to Contents Page file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA.../Latitude/D400/D400_SERVICE_MANUAL/pinouts.htm (4 of 4)6/21/2004 1:56:18 AM...
  • Page 75 Mini Recommended Spares List : Dell Latitude D400 Service Manual Back to Contents Page Mini Recommended Spares List Dell™ Latitude™ D400 Service Manual Accessories P1516 D-Module external media bay housing with cable Bluetooth™ 2U381 Bluetooth module Bottom Base Parts D2389...
  • Page 76 Mini Recommended Spares List : Dell Latitude D400 Service Manual K1033 24X CD-RW/DVD, D-module M0063 2X DVD+RW, +R, D-module G0408 8X DVD, D-module 6U568 Floppy Drive 2R152 floppy drive, D-module Hard Drive and Accessories 8X239 20 G HDD 8X233 30 G HDD...
  • Page 77 Mini Recommended Spares List : Dell Latitude D400 Service Manual P1291 LCD Service Kit (includes LCD assembly, tech sheet, and scribe), 12.1 XGA, D400 2X241 display connector-LCD flex cable 6U549 rubber screw bumpers 2U940 rubber screw covers Memory 7M020 1 G DIMM...

  • Page 78: Palm Rest Assembly

    Mini Recommended Spares List : Dell Latitude D400 Service Manual System Board With Processor X1097 System Board Service Kit, 1.3 GHz, D400 X1099 System Board Service Kit, 1.4 GHz, D400 X1102 System Board Service Kit, 1.7 GHz, D400 Palm Rest Assembly...

Table of Contents