dell latitude d400 User Manual

Using the Dell Diagnostics: 
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Using the Dell Diagnostics 
  When to Use the Dell Diagnostics
  Features of the Dell Diagnostics
  Starting the Dell Diagnostics
When to Use 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 Users Guide 
and run the Dell Diagnostics before you...

Using the Dell Diagnostics: 
The diagnostic test groups or subtests also have the following features:\
l     Options that let you perform express, extended, or custom tests on one o\
r all 
devices
l     An option that allows you to select tests based on a symptom of the prob\
lem 
you are having
l     An option that allows you to choose the number of times a test group or \
subtest 
is repeated
l     The ability to display test results
l     Options to temporarily suspend testing if an error is...

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 ) to begin the Dell Diagno\
stics. 
You do not need to highlight Diagnostics and press . The computer 
automatically runs the Pre-boot System Assessment. 
4.  Turn on the computer. When the DELL™ logo appears, press   immediately. If you wait too long and the Microsoft® Windows® logo\
 appears, 
continue to wait until you see the Windows desktop. Then shut down...

Using the Dell Diagnostics: 
NOTE: The Service Tag for your computer is located in the title bar of each 
screen. 
Option Function
Express Test Performs a quick test of devices. The test typically takes 10 to 20 
minutes and requires no interaction on your part. Run Express Test 
first to increase the possibility of tracing the problem quickly.
Extended Test Performs a thorough check of devices. The test typically takes 1 
hour or more and requires you to answer questions periodically.
Custom Test Tests...

Using the Dell Diagnostics: 
ConfigurationDisplays your hardware configuration for the selected device.
The Dell Diagnostics obtains your configuration information for all 
devices from the system setup program, memory, and various 
internal tests and displays the information in the device list in the le\
ft 
pane of the screen (see the Users Guide for information on the 
system setup program). The device list may not display the names of 
all the components installed on your computer or all devices...

System Components: 
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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 rever\
se 
order. 
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System Components: 
 
1 display P129110
smart card reader 0X740
2 keyboard P129011
hard drive
See Mini RSL
3 palm rest 4U78212
memory module cover P0777
4 speaker 4U78213
battery
See Mini RSL
5 DIMM1 cover 2X38614
computer base D2389
6 metal shield 2X37015
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 
   
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Keyboard: 
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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. 
1.  Follow the instructions in 
Preparing to Work Inside the Computer to remove...

Keyboard: 
 
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. 
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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 connec\
tor to  disconnect the connector from the interface connector on the system boar\
d. 
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