Dell Latitude C400 Guide

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Dell™ Latitude™ C400
Replacing the Display

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.
© 2001 Dell Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly
forbidden.
Trademarks used in this text:
Dell , the DELL logo, and Latitude are trademarks of Dell Computer Corporation. 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.
December 2001 P/N 8M232 Rev. A00

Replacing the Display 3
Replacing the Display
This document describes how to replace the display in your Dell Latitude
C400 computer. The display and the top cover of the computer are designed
to be removed and replaced as one unit.
CAUTION: Before performing the following procedures, read
"Safety and EMC Instructions: Portable Computers" in your
System Information guide.
Removing the Display
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.
1Disconnect the computer and any attached devices from electrical
outlets.
2Remove the battery from the computer.
Turn the computer over. Slide and hold the battery latch release while
sliding the battery straight out of the bay.

4Replacing the Display
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3Turn the computer right-side up and open it.
1display
2centercover
3 computer base
2
3
1

Replacing the Display 5
4Remove the center cover.
aOpen the display all the way (180 degrees) so that it lies flat
against your work surface.
bPress down the and keys to identify the left release
slot on the front edge of the center cover. Press down the
and keys to locate the right release slot.
cTo protect the keyboard, place a flexible straightedge (such as the
ruler in the illustration) across the rows of keys directly in front of
the center cover, touching the front edge of the center cover.
dPress down on the straightedge to reveal the left release slot, insert
the plastic scribe into the slot, and use the straightedge as a brace
to pry the center cover up as shown. The left side of the cover
should pop up; the entire cover may pop out at this point.
eRepeat for the right release slot if necessary.
fLift the center cover away and lay it aside.
1centercover
1

6Replacing the Display
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5Close the display.
6Turn the computer over and remove the two 6-mm screws at the back
corners of the computer. Put the screws aside in a safe place.
Display Screws
7Turn the computer right-side up and open the display all the way.

Replacing the Display 7
8Disconnect the display cable assembly from the computer base.
aRemove the two 12-mm screws from the securing board.
bUse the pull tab to pull the securing board up out of its connector.
1 12-mm securing board screws (2)
2securingboard
3 pull tab
4 display cable assembly
3
1
2
4

8Replacing the Display
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9Pivot the display upright and lift it out of the computer.

Replacing the Display 9
Installing the New Display
1Position the replacement display upright and align its hinges with the
slots at the back corners of the computer. Ensure that the display cable
assembly is positioned well in front of the display to avoid trapping or
pinching the cable when you insert the display.
2Carefully insert the display hinges into the slots.
3Ensure that the display is fully seated, and then carefully pivot it back
until it is completely open.

10 Replacing the Display
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4Press the display-cable securing board firmly into its connector in the
computer base, and replace the two 12-mm screws you removed in
step 8 of the previous procedure (or use the new screws provided with
the display kit).