dell latitude d400 User 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...

Dell Latitude D400 Service Manual
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...

Dell Latitude D400 Service Manual
Model PPT
October 2003     Rev. A02
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Before You Begin: Dell Latitude D400 Service Manual
Back to Contents Page 
Before You Begin 
Dell™ Latitude™ D400 Service Manual
  Preparing to Work Inside the Computer
  Recommended Tools
  Computer Orientation
  Screw Identification
Preparing to Work Inside the Computer
 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...

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. 
4.  If the computer is connected to a docking device (docked), undock it. \
5.  Disconnect the computer from the electrical outlet. 
6.  To avoid possible damage to the system board, wait 10 to 20 seconds and \
then  disconnect any attached devices. 
7....

Before You Begin: Dell Latitude D400 Service Manual
 
Recommended Tools
The procedures in this manual require the following tools:
l     Phillips screwdriver
l     Flat-blade screwdriver
l     Small plastic scribe
l     Flash BIOS update program floppy disk or CD
Computer Orientation
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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 identificat\
ion chart 
provides the number of screws and their sizes.
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Before You Begin: Dell Latitude D400 Service Manual
 
keyboard
(two each)
      1428U modem
(one each)      1428Uhard drive
(four each)      2864D
display removal
(six each)
      4911U display bezel
(six each)      7166Pdisplay latch
(two each)      5H953
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Before You Begin: Dell Latitude D400 Service Manual
palm rest
(thirteen each)
      4911U
(two each)
 
      5H953fan
(three each)
      1428U
system board
(six each)      1428U
(one each, if a BIOS card is present)
 
      1428U
speakers
(two each)
      4911U  
 
Back to Contents Page
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Before You Begin: Dell Latitude D400 Service Manual
 
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