Dell Latitude C400 Manual de usuario

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.

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Dell Latitude C400 Service Manual

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.

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.

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Before You Begin : Dell Latitude C400 Service Manual

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.

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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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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System Components : Dell Latitude C400 Service Manual

1 display 8 memory module/modem cover

2 center cover 9 battery

3 hard drive 10 audio card

4 cooling fan 11 audio card shield

5 reserve battery 12 critical component shield

6 system board 13 palm rest

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