Dell Latitude C400 Manuel utilisateur

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Dell Latitude C400 Service Manual

Dell™ Latitude™ C400 Service Manual

Before You Begin

System Components

Keyboard

Memory Module and Modem Daughter Card

Hard Drive

Wireless Network Adapter

Display Assembly and Display Latch

Palm Rest

Cooling Fan

Reserve Battery

Flashing the BIOS

Audio Board

System Board

Battery Latch

Pin Assignments for I/O Connectors

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.

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; Intel is a

registered trademark of Intel Corporation; Microsoft and Windows are registered trademarks of Microsoft 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.

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Dell Latitude C400 Service Manual

October 2001 Rev. A00

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Before You Begin : Dell Latitude C400 Service Manual

Back to Contents Page

Before You Begin

Dell™ Latitude™ C400 Service Manual

Preparing to Work Inside the Computer

Recommended Tools

Screw Identification

Preparing to Work Inside the Computer

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: To avoid damaging the computer, perform the following steps before you begin

working inside the computer.

1. Make sure that the work surface is clean to prevent scratching the computer cover.

2. Save any work in progress and close all open application programs.

3. Turn off the computer and all attached devices.

NOTE: Make sure the computer is turned off and not in suspend-to-disk or hibernate mode. If

you cannot shut down the computer using the computer's operating system, press and hold the

power button for 4 seconds.

4. Make sure the computer is undocked.

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. Disconnect all other external cables from the computer, including the IDE modular bay cable (if

connected).

8. Remove any installed PC Cards or plastic blanks from the PC Card slot.

9. Close the display and turn the computer upside down on a flat work surface.

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Before You Begin : Dell Latitude C400 Service Manual

NOTICE: To avoid damaging the system board, you must remove the battery before you

service the computer.

10. Remove the battery from the battery bay.

11. To dissipate any static electricity while you work, use a wrist grounding strap or periodically

touch an unpainted metal surface.

12. Handle components and cards with care. Do not touch the components or contacts on a card.

Hold a card by it edges or by its metal mounting bracket. Hold internal components by their

edges, not by their pins.

Recommended Tools

The procedures in this manual require the following tools:

●#1 magnetized Phillips screwdriver

●Small flat-blade screwdriver

●5-mm nut driver

●7-mm nut driver

●Needle-nose pliers

●Flash BIOS update program floppy disk or CD

Computer Orientation

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Before You Begin : Dell Latitude C400 Service Manual

1 back

2 right

3 front

4 left

Screw Identification

When you are removing and replacing components, photocopy the placemat as a tool to lay out and

keep track of the screws. The placemat provides the number of screws and their sizes.

Screw Identification

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Before You Begin : Dell Latitude C400 Service Manual

NOTICE: When reinstalling a screw, you must use a screw of the correct diameter and length.

Make sure that the screw is properly aligned with its corresponding hole, and avoid

overtightening.

Hard Drive Door:

(1 each)

Modem Daughter Card:

(1 each)

Keyboard:

(4 each)

Display Assembly:

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Before You Begin : Dell Latitude C400 Service Manual

Display Bezel:

(6 each)

Rubber screw covers: 6 each

Palm Rest to Bottom Case:

Critical Component Shield:

(6 each)

Palm Rest to System Board:

(6 each)

Cooling Fan:

(3 each)

Audio Board:

(2 each)

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Before You Begin : Dell Latitude C400 Service Manual

System Board:

(1 each)

Guide pins: 2 each

5-mm hex nuts: 4 each

7-mm hex nuts: 2 each

Back to Contents Page

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System Components : Dell Latitude C400 Service Manual

Back to Contents Page

System Components

Dell™ Latitude™ C400 Service Manual

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 manual assumes that a part can be

replaced by performing the removal procedure in reverse order.

System Components

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