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Dell Latitude D400 Service Manual

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Download this manual See also: Service Manual, Information 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
Touch Pad
System Board
Removing the System Board
Replacing the System Board
Reserve Battery
Flashing the BIOS
Speakers
Battery Latch
Pin Assignments for I/O Connectors
USB Connector
Video Connector
Serial Connector
Dell D/Bay Connector
Mini Recommended Spares List
Notes, Notices, and Cautions
NOTE:
A NOTE indicates important information that helps you make better use of your computer.
NOTICE:
A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
CAUTION:
A CAUTION indicates a potential for property damage, personal injury, or death.
Information in this document is subject to change without notice.
© 2003 Dell Inc. All rights reserved.
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. under license.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any
proprietary interest in trademarks and trade names other than its own.
Model PPT
October 2003     Rev. A02

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Summary of Contents for Dell Latitude D400

  • Page 1 Bluetooth SIG, Inc. and is used by Dell Inc. under license. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

  • Page 2: 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 3: Recommended Tools

      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     1  back 2  right 3  front 4  left  ...
  • Page 4               1428U       2864D       1428U  display removal  display bezel  display latch  (six each)  (six each)  (two each)             4911U       7166P       5H953  palm rest  fan  system board  (thirteen each)  (three each)  (six each)             4911U       1428U       1428U  ...

  • Page 5: Flashing The Bios

    Back to Contents Page   Flashing the BIOS 1.  Ensure that the AC adapter is plugged in and that the main battery is installed properly.   NOTE: If you use a BIOS update program CD to flash the BIOS, set up the computer to boot from a CD before inserting the CD. 2.
  • Page 6 Back to Contents Page   Bluetooth™    CAUTION: Before performing the following procedures, read the safety instructions in your 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.
  • Page 7 1  Bluetooth connector    2  Bluetooth module (front)  2U381 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.  ...

  • Page 8: Using The Dell Diagnostics

    NOTE: 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 9  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 10: Removing The Display Assembly

    Back to Contents Page   Display   Removing the Display Assembly   Replacing the Display Latch   Removing the Display Assembly   CAUTION: Before performing the following procedures, read the safety instructions in your 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.
  • Page 11 To replace the display latch, you must remove the whole bezel. 1.  Follow the instructions in "Preparing to Work Inside the Computer." 2.  Remove the hard drive. 3.  Remove the keyboard. 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.      ...

  • Page 13: Installing The Docking Doors

    Back to Contents Page   Docking Doors   Removing the Docking Doors   Installing the Docking Doors   Removing the Docking Doors   CAUTION: Before performing the following procedures, read the safety instructions in your 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.
  • Page 14     1  docking doors with spring  8X516 2  longer post      Back to Contents Page  ...

  • Page 15: Cooling Fan

    Back to Contents Page   Cooling Fan   CAUTION: Before performing the following procedures, read the safety instructions in your 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.

  • Page 16: 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 17 1.  Remove the new drive from its packaging.   Save the original packaging for storing or shipping the hard drive. 2.  Slide the hard drive into the bay until it is fully seated. 3.  Replace and tighten the two M3 x 3-mm screws. 4.
  • Page 18   Replacing the Interposer   NOTICE: Use firm and even pressure to slide the drive into place. If you use excessive force, you may damage the connector. 1.  Attach the hard drive carrier to the new hard drive, and replace the two M3 x 3-mm screws. 2.

  • Page 19: Removing The Keyboard

    Back to Contents Page   Keyboard   Removing the Keyboard   Installing the Keyboard   Removing the Keyboard   CAUTION: Before performing the following procedures, read the safety instructions in your 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.

  • Page 20: Installing The Keyboard

        1  keyboard  P1290 2  keyboard pull-tab    3  M2 x 5-mm screws (2)  1428U 4  securing tabs (5)    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.
  • Page 21 Back to Contents Page  ...

  • Page 22: Battery Latch

    Back to Contents Page   Battery Latch   CAUTION: Before performing the following procedures, read the safety instructions in your 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.
  • Page 23 Back to Contents Page   Memory   Installing a Memory Module Under the Memory Module/Modem Cover   Installing a Memory Module Under the Keyboard   CAUTION: Before performing the following procedures, read the safety instructions in your 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.
  • Page 24      1  memory module  See Mini RSL  2  securing clips (2)    3.  Ground yourself and install the new memory module: a.  Align the notch in the module edge connector with the tab in the connector slot. b.  Slide the module firmly into the slot at a 45-degree angle, and rotate the module down until it clicks into place. If you do not feel the click, remove the module and reinstall it.
  • Page 25 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 4  securing clips (2)   ...
  • 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  ...

  • Page 27: Mini Pci Card

    Back to Contents Page   Mini PCI Card   CAUTION: Before performing the following procedures, read the safety instructions in your 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.
  • Page 28   1  securing tabs (2) 2  Mini PCI card connector   NOTICE: To avoid damaging the Mini PCI card, never place cables on top of or under the card.   NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card.  ...
  • Page 29 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  computer base (bottom plastics)  2X386  DIMM1 cover  2X370  EMI shield, D400  P0777...
  • Page 30  7M020  1 G DIMM  3Y180  128 MB DIMM  3Y182  256 MB DIMM  0K963  512 MB DIMM  Mini PCI Cards     9Y200  Intel Pro 2100, 802.11b  3X548  TM1400, 802.11a\b  J0846  TM1300, 802.11b\g  Modem     9X163  Modem Daughter Card Power Source     5U092  AC power brick only, 65 W  9T215...
  • Page 31 Back to Contents Page   Modem   CAUTION: Before performing the following procedures, read the safety instructions in your 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.

  • Page 32: Palm Rest

    Back to Contents Page   Palm Rest   CAUTION: Before performing the following procedures, read the safety instructions in your 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.
  • Page 33     1  M2.5 x 6-mm screws (4)  4911U 8.  Disconnect the speaker connector, and remove the speaker cable.     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.
  • Page 34 11.  Lift the palm rest away.   Back to Contents Page  ...

  • Page 35: 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+  GND   Video Connector     Signal Signal  CRT_R  5V+  CRT_G  GND  CRT_B...
  • Page 36     Signal Signal  DCD  DSR  RXDA  RTS  TXDA  CTS  DTR  RI  GND        Dell D/Bay Connector     Signal Signal  USB_VCC  SMB_CLK  USB_D-  GND  USB_D+  SHIELD GND  USB_GND  SHIELD GND  PWR_SRC  SHIELD GND  SMB_DAT  SHIELD GND  MODPRES#  SHIELD GND...

  • Page 37: Reserve Battery

    Back to Contents Page   Reserve Battery   CAUTION: Before performing the following procedures, read the safety instructions in your 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.
  • Page 38 Back to Contents Page   Speakers   CAUTION: Before performing the following procedures, read the safety instructions in your 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.

  • Page 39: Removing The System Board

    Back to Contents Page   System Board   Removing the System Board   Replacing the System Board   Removing the System Board   The system board's BIOS chip contains the Service Tag, which is also visible on a bar code label on the bottom of the computer. The replacement kit for the system board may include a CD that provides a utility for transferring the Service Tag to the replacement system board.
  • Page 40   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.       1  M2 x 5-mm screws (4)  1428U 2  EMI shield  2X370 11.
  • Page 41     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.       1  system board  See Mini RSL 2  computer base  D2389 14.

  • Page 42: Replacing The System Board

      Replacing the System Board   After you have replaced the system board, insert the floppy disk or CD that accompanied the replacement system board into the appropriate drive, and turn on the computer. Follow the instructions on the screen.  ...

  • Page 43: 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 45: Touch Pad

    Back to Contents Page   Touch Pad   CAUTION: Before performing the following procedures, read the safety instructions in your 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.
  • Page 46   1  touch-pad ZIF connector    2  touch pad cable  D1690 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.  ...
  • Page 47 Corporation; Bluetooth is a trademark owned by Bluetooth SIG, Inc. and is used by Dell Computer Corporation under license. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.

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