Dell D400 - Latitude - Pentium M 1.3 GHz Bedienungsanleitung

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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 
Mini PCI Card
Modem
Hard Drive
Removing the Hard Drive 
Installing the Hard Drive 
Removing the Interposer 
Replacing the Interposer 
Docking Doors
Removing the Docking Doors 
Installing the Docking Doors 
Bluetooth™
Display
Removing the Display Assembly 
Replacing the Display Latch 
Palm Rest
Cooling Fan
Touch Pad
System Board
Removing the System Board 
Replacing the System Board 
Reserve Battery
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Dell Latitude D400 Service Manual

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 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 Inc. is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, and Latitude are trademarks of Dell Inc.; Microsoft and Windows are

registered trademarks of Microsoft Corporation; Bluetooth is a trademark owned by Bluetooth SIG, Inc. and is used by Dell

Inc. under license.

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 Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

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 Information

Guide that came with the computer.

CAUTION: To prevent static damage to components inside your computer, discharge

static electricity from your body before you touch any of your computer's electronic

components. You can do so by touching an unpainted metal surface.

CAUTION: Handle components and cards with care. Do not touch the components or

contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a

component such as a microprocessor by its edges, not by its pins.

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

working inside the computer.

1. Ensure that the work surface is flat and clean to prevent scratching the computer cover.

2. Save any work in progress and exit all open programs.

3. Turn off the computer and all attached devices.

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.

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Before You Begin: Dell Latitude D400 Service Manual

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.

8. Remove any installed PC Cards 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 main battery before you

service the computer.

10. Slide and hold the battery-bay latch release on the bottom of the computer, and then remove

the battery from the bay.

Recommended Tools

The procedures in this manual require the following tools:

●Phillips screwdriver

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Before You Begin: Dell Latitude D400 Service Manual

●Flat-blade screwdriver

●Small plastic scribe

●Flash BIOS update program floppy disk or CD

Computer Orientation

1back

2right

3front

4left

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Before You Begin: Dell Latitude D400 Service Manual

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 identification chart provides the number of screws and

their sizes.

keyboard

(two each)

1428U

modem

(one each)

1428U

hard drive

(four each)

2864D

display removal

(six each)

4911U

display bezel

(six each)

7166P

display latch

(two each)

5H953

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Before You Begin: Dell Latitude D400 Service Manual

palm rest

(thirteen each)

4911U

(two each)

5H953

fan

(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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Using the Dell Diagnostics:

Back to Contents Page

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 User's Guide and run the Dell Diagnostics before you call Dell for

technical assistance. Running the Dell Diagnostics may help you to resolve the problem yourself

quickly without having to contact Dell for assistance.

If you are experienced with computers and know what component(s) you need to test, select the

appropriate diagnostic test group(s) or subtest(s). If you are unsure about how to begin diagnosing a

problem, see "Starting the Dell Diagnostics."

Features of the Dell Diagnostics

The Dell Diagnostics helps you to check your computer hardware without any additional equipment and

without destroying any data. By using the diagnostics, you can have confidence in the operation of

your computer. If you find a problem that you cannot solve by yourself, the diagnostic tests can

provide you with important information you need when talking to Dell's service and support personnel.

NOTICE: Use the Dell Diagnostics to test only your Dell computer. Using this program with

other computers may cause incorrect computer responses or result in error messages.

The diagnostic test groups or subtests also have the following features:

●Options that let you perform express, extended, or custom tests on one or all devices

●An option that allows you to select tests based on a symptom of the problem you are having

●An option that allows you to choose the number of times a test group or subtest is repeated

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