Dell C400 Service Manual
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Dell™ Latitude™ C400
System Information
Informations système
Informações sobre o Sistema
Información del sistema
Model Number PP03L
www.dell.com | support.dell.com
Contents
English . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Français . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Português . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Español . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Dell™ Latitude™ C400
System Information
www.dell.com | support.dell.com
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.
Abbreviations and Acronyms
For a complete list of abbreviations and acronyms, see the User’s Guide (click the Start button
®
on the Microsoft
Windows® desktop, point to Programs—> User’s Guides, and click Dell
System User’s Guide).
____________________
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, Latitude, TrueMobile, and DellWare are trademarks of Dell
Computer 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.
September 2001 P/N 1E405 Rev. A00
Dell™ Latitude™ System Information
Your Dell Latitude portable computer accessories box includes a reduced
set of paper documentation. This document contains getting started, safety,
and regulatory information about your Dell computer as well as information
about other Dell documents that are available and how to obtain them.
Other Documents Available
• The Start Here placemat, which provides step-by-step instructions for
connecting your computer.
NOTE: The Start Here placemat is not available in all regions.
• The user’s guides for your computer and other devices provide
information on using your computer, installing parts such as memory
modules, configuring drivers and utilities, using the system setup
program, and using devices. Double-click the User’s Guides icon on
your desktop or the Start menu to access the electronic information
stored on your hard drive.
• Documentation updates are sometimes included with your computer
to describe changes to your computer or software. Always read these
updates before consulting any other documentation because the
updates often contain the latest information.
• Operating system documentation, which is included if you ordered
your operating system software from Dell.
Documents on the Web
You can obtain the latest versions of any of the documents on your hard
drive as well as other troubleshooting information from the support site at
support.dell.com.
Dell™ Latitude™ C400 System Information 5
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Safety and EMC Instructions: Portable
Computers
The following information defines the meaning of additional symbols used
only in the Safety and Electromagnetic Compatibility (EMC) Instructions.
Risk of explosion Aircraft
Risk of fire Use of this feature may be prohibited
on aircraft
Risk of electric shock
Safety Instructions
General
• Do not attempt to service the computer yourself unless
you are an authorized service technician. Always follow
installation instructions closely.
• If you use an extension power cable with your AC
adapter, ensure that the total ampere rating of the
products plugged in to the extension power cable does
not exceed the ampere rating of the extension cable.
• Do not push objects into air vents or openings of your
computer. Doing so can cause fire or electric shock by
shorting out interior components.
• Place the AC adapter in a ventilated area, such as a desk
top or on the floor, when you use it to run the computer
or to charge the battery. Do not cover the AC adapter
with papers or other items that will reduce cooling; also,
do not use the AC adapter inside a carrying case.
6 Dell™ Latitude™ C400 System Information
• Do not allow your portable computer to operate with
the base resting directly on exposed skin for extended
periods of time. The surface temperature of the base
will rise during normal operation (particularly when AC
power is present). Allowing sustained contact with
exposed skin can cause discomfort or, eventually, a
burn.
• Do not use your computer in a wet environment, for
example, near a bath tub, sink, or swimming pool or in a
wet basement.
• If your computer includes an integrated or optional (PC
Card) modem, disconnect the modem cable if an
electrical storm is approaching to avoid the remote risk
of electric shock from lightning via the telephone line.
• To help avoid the potential hazard of electric shock, do
not connect or disconnect any cables or perform
maintenance or reconfiguration of this product during
an electrical storm. Do not use your computer during
an electrical storm unless all cables have been
disconnected and the computer is operating on battery
power.
• If your computer includes a modem, the cable used
with the modem should be manufactured with a
minimum wire size of 26 American wire gauge (AWG)
and an FCC-compliant RJ-11 modular plug.
• Before you open the memory module/modem cover on
the bottom of your computer, disconnect all cables
from their electrical outlets and disconnect the
telephone cable.
• If your computer has a modem RJ11 connector and a
network RJ45 connector, insert the telephone cable into
the RJ11 connector, not the RJ45 connector.
• PC Cards may become very warm during normal
operation. Use care when removing PC Cards after their
continuous operation.
Dell™ Latitude™ C400 System Information 7
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• Before you clean your computer, remove power. Clean
your computer with a soft cloth dampened with water.
Do not use liquid or aerosol cleaners, which may
contain flammable substances.
Power (Safety Instructions, continued)
• Use only the Dell-provided AC adapter approved for
use with this computer. Use of another AC adapter may
cause a fire or explosion.
• Before you connect the computer to an electrical outlet,
check the AC adapter voltage rating to ensure that the
required voltage and frequency match the available
power source.
• To remove power from the computer, turn it off,
remove the battery pack, and disconnect the AC
adapter from the electrical outlet.
• To help prevent electric shock, plug the AC adapter and
peripheral power cables into properly grounded power
sources. These power cables may be equipped with
three-prong plugs to provide an earth grounding
connection. Do not use adapter plugs or remove the
grounding prong from the power cable plug. If you use a
power extension cable, use the appropriate type, twoprong or three-prong, to mate with the AC adapter
power cable.
• Be sure that nothing rests on your AC adapter’s power
cable and that the cable is not located where it can be
tripped over or stepped on.
8 Dell™ Latitude™ C400 System Information
• If you are using a multiple-outlet power strip, use
caution when plugging the AC adapter’s power cable
into the power strip. Some power strips may allow you
to insert the plug incorrectly. Incorrect insertion of the
power plug could result in permanent damage to your
computer, as well as risk of electric shock and/or fire.
Ensure that the ground prong of the power plug is
inserted into the mating ground contact of the power
strip.
Battery (Safety Instructions, continued)
• Use only Dell battery modules that are approved for use
with this computer. Use of other types may increase the
risk of fire or explosion.
• Do not carry a battery pack in your pocket, purse, or
other container where metal objects (such as car keys or
paper clips) could short-circuit the battery terminals.
The resulting excessive current flow can cause
extremely high temperatures and may result in damage
to the battery pack or cause fire or burns.
• The battery poses a burn hazard if you handle it
improperly. Do not disassemble it. Handle a damaged
or leaking battery pack with extreme care. If the battery
is damaged, electrolyte may leak from the cells and may
cause personal injury.
• Keep away from children.
• Do not store or leave your computer or battery pack
near a heat source such as a radiator, fireplace, stove,
electric heater, or other heat-generating appliance.
When heated to excessive temperatures, battery cells
could explode or vent, posing a risk of fire.
Dell™ Latitude™ C400 System Information 9
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• Do not dispose of your computer’s battery in a fire or
with normal household waste. Battery cells may
explode. Discard a used battery according to the
manufacturer’s instructions or contact your local waste
disposal agency for disposal instructions. Dispose of a
spent or damaged battery promptly.
Air Travel (Safety Instructions, continued)
• Certain Federal Aviation Administration regulations and/or
airline-specific restrictions may apply to the operation of your
Dell™ computer while you are on board an aircraft. For
example, such regulations/restrictions may prohibit the use of
any personal electronic device (PED) that has the capacity for
intentional transmission of radio frequency or other
electromagnetic signals while on an aircraft.
– In order to best comply with all such restrictions, if your
Dell portable computer is equipped with Dell
TrueMobile™ or some other wireless communication
device, please disable this device before you board the
aircraft and follow all instructions provided by airline
personnel with regard to such device.
– Additionally, the use of any PED, such as a portable
computer, may be prohibited in aircraft during certain
critical phases of flight, for example, takeoff and landing.
Some airlines may further define the critical flight phase as
any time the aircraft is below 3050 m (10,000 ft). Please
follow the airline’s specific instructions as to when the use
of a PED is allowed.
EMC Instructions
• Use shielded signal cables to ensure that you maintain the appropriate
EMC classification for the intended environment. For parallel printers,
a cable is available from Dell. If you prefer, you can order a cable from
Dell at its world-wide website at http://www.dell.com.
10 Dell™ Latitude™ C400 System Information
• Static electricity can harm electronic components inside your
computer. To prevent static damage, discharge static electricity from
your body before you touch any of your computer’s electronic
components, such as a memory module. You can do so by touching an
unpainted metal surface on the computer's input/output panel.
When Using Your Computer
Observe the following safety guidelines to prevent damage to your
computer:
• When setting up the computer for work, place it on a level surface.
• When traveling, do not check the computer as baggage. You can put
your computer through an X-ray security machine, but never put your
computer through a metal detector. If you have the computer checked
by hand, be sure to have a charged battery available in case you are
asked to turn on the computer.
• When traveling with the hard drive removed from the computer, wrap
the drive in a nonconducting material, such as cloth or paper. If you
have the drive checked by hand, be ready to install the drive in the
computer. You can put the hard drive through an X-ray security
machine, but never put the drive through a metal detector.
• When traveling, do not place the computer in overhead storage
compartments where it could slide around. Do not drop your
computer or subject it to other mechanical shocks.
• Protect your computer, battery, and hard drive from environmental
hazards such as dirt, dust, food, liquids, temperature extremes, and
overexposure to sunlight.
• When you move your computer between environments with very
different temperature and/or humidity ranges, condensation may form
on or within the computer. To avoid damaging the computer, allow
sufficient time for the moisture to evaporate before using the
computer.
NOTICE: When taking the computer from low-temperature conditions into a
warmer environment or from high-temperature conditions into a cooler
environment, allow the computer to acclimate to room temperature before
turning on power.
Dell™ Latitude™ C400 System Information 11
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• When you disconnect a cable, pull on its connector or on its strainrelief loop, not on the cable itself. As you pull out the connector, keep
it evenly aligned to avoid bending any connector pins. Also, before you
connect a cable make sure both connectors are correctly oriented and
aligned.
• Handle components with care. Hold a component such as a memory
module by its edges, not its pins.
• When preparing to remove a memory module from the system board
or disconnect a peripheral device from the computer, turn off the
computer, disconnect the AC adapter cable, and then wait 5 seconds
before proceeding to help avoid possible damage to the system board.
• Clean the display with a soft, clean cloth and commercial window
cleaner that does not contain wax or abrasives. Apply the cleaner to the
cloth; then stroke the cloth across the display in one direction, moving
from the top of the display to the bottom. If the display contains
grease or some other contaminant, use isopropyl alcohol instead of
commercial window cleaner.
• If your computer gets wet or is damaged, follow the procedures
described in “Solving Problems” in your online User’s Guide. If, after
following these procedures, you confirm that your computer is not
operating properly, contact Dell (see “Getting Help” in your User’s
Guide for the appropriate telephone number).
Ergonomic Computing Habits
CAUTION: Improper or prolonged keyboard use may result in
injury.
CAUTION: Viewing the display or external monitor screen for
extended periods of time may result in eye strain.
For comfort and efficiency, observe the following ergonomic guidelines
when setting up and using your computer:
• Position your computer directly in front of you as you work.
• Adjust the tilt of the computer’s display, its contrast and/or brightness
settings, and the lighting around you (such as overhead lights, desk
lamps, and the curtains or blinds on nearby windows) to minimize
reflections and glare on the display.
12 Dell™ Latitude™ C400 System Information
• When using an external monitor with your computer, set the monitor
at a comfortable viewing distance (usually 510 to 610 millimeters [20
to 24 inches] from your eyes). Make sure the monitor screen is at eye
level or slightly lower when you are sitting in front of the monitor.
• Use a chair that provides good lower-back support.
• Keep your forearms horizontal with your wrists in a neutral,
comfortable position while using the keyboard, touch pad, track stick,
or external mouse.
• Always use the palm rest with the keyboard, touch pad, or track stick.
Leave space to rest your hands when using an external mouse.
• Let your upper arms hang naturally at your sides.
• Sit erect with your feet resting on the floor and your thighs level.
• When sitting, make sure the weight of your legs is on your feet and not
on the front of your chair seat. Adjust your chair’s height or use a
footrest, if necessary, to maintain proper posture.
• Vary your work activities. Try to organize your work so that you do not
have to type for extended periods of time. When you stop typing, try
to do things that use both hands.
Dell™ Latitude™ C400 System Information 13
2
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3
1
1 Computer positioned directly in front of user
2 Wrists relaxed and flat
3 Arms at desk level
When Removing or Installing Memory Modules
Before removing or installing memory modules, perform the following steps
in the sequence indicated.
14 Dell™ Latitude™ C400 System Information
NOTICE: The only time you should ever access the inside of your computer is
when you are installing a memory module or a modem.
NOTICE: Wait 5 seconds after turning off the computer before disconnecting
a peripheral device or removing a memory module to help prevent possible
damage to the system board.
1
Turn off your computer and any attached peripherals.
2 Disconnect your computer and peripherals from electrical outlets to
reduce the potential for personal injury or shock. Also, disconnect any
telephone or telecommunication lines from the computer.
3 Remove the battery from the battery bay.
4 Ground yourself by touching the unpainted metal surface of the I/O
panel on the back of the computer.
While you work, periodically touch the I/O panel to dissipate any
static electricity that might harm internal components.
Protecting Against Electrostatic Discharge
Static electricity can harm electronic components inside your computer. To
prevent static damage, discharge static electricity from your body before you
touch any of your computer’s electronic components, such as a memory
module. You can do so by touching an unpainted metal surface on the
computer’s I/O panel.
As you continue to work inside the computer, periodically touch an I/O
connector to remove any static charge your body may have accumulated.
You can also take the following steps to prevent damage from electrostatic
discharge (ESD):
• When unpacking a static-sensitive component from its shipping
carton, do not remove the component from the antistatic packing
material until you are ready to install the component. Just before
unwrapping the antistatic packaging, be sure to discharge static
electricity from your body.
• When transporting a sensitive component, first place it in an antistatic
container or packaging.
• Handle all sensitive components in a static-safe area. If possible, use
antistatic floor pads and workbench pads.
Dell™ Latitude™ C400 System Information 15
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The following notice may appear throughout this document to remind you
of these precautions:
NOTICE: See “Protecting Against Electrostatic Discharge” in the safety
instructions at the front of this guide.
Getting Started
To set up your computer, perform the following steps:
1 Unpack the accessories box.
2 Set aside the contents of the accessories box, which you will need to
complete the setup of your computer.
The accessories box also contains user documentation and any software or
additional hardware (such as PC Cards, drives, or batteries) you have
ordered.
16 Dell™ Latitude™ C400 System Information
Connecting the AC Adapter
AC Adapter Connection
NOTICE: Instead of the power cable pictured, your computer may ship with a
3-foot-long power cable that connects to the AC adapter using a right-angle
connector. This alternate power cable is not intended for use in permanent or
semipermanent installations. When plugged into a standard wall outlet, the
cable must not cause any undue strain on the wall outlet, and the AC adapter
must lie flat on and be fully supported by the underlying surface (for example,
floor or desktop).
Dell™ Latitude™ C400 System Information 17
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Connecting a Device in the External Module Bay (Optional)
Insert a media module all the way into the module bay. Use the IDE module
bay cable to connect the device to the computer. Icons on the cable
connectors identify the computer and bay ends of the cable; connect the
cable with the icons facing up.
Connecting the Module Bay
18 Dell™ Latitude™ C400 System Information
Turning On the Computer
To turn on the computer, open the computer display and press the power
button.
NOTE: Do not dock the computer until it has been turned on and shut down at
least once.
Power Button
Dell™ Latitude™ C400 System Information 19
Computer Components
Front View
CAUTION: Do not block, push objects into, or allow dust to
accumulate in the air vents. Doing so can damage the computer or
cause a fire.
1
2
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3
13
12
11
10
97
1 display latch 8 touch pad buttons
2 device status lights 9 microphone
3 display 10 track stick buttons
4 power button 11 track stick
5 keyboard 12 keyboard status lights
6 speaker 13 AccessDirect button
7 touch pad
8
4
5
6
20 Dell™ Latitude™ C400 System Information
Left Side View
51423
1 modem connector
2 USB connector
3 IDE module bay
connector
4 PC Card slot
5 audio connectors
Dell™ Latitude™ C400 System Information 21
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Right Side View
CAUTION: Do not block, push objects into, or allow dust to
accumulate in the air vents. Doing so can damage the computer or
cause a fire.
123
1 hard drive
2 air vents
3 security cable slot
22 Dell™ Latitude™ C400 System Information
Back View
NOTICE: To avoid damaging the computer, wait 5 seconds after turning off
the computer before you disconnect an external device.
CAUTION: Do not block, push objects into, or allow dust to
accumulate in the air vents. Doing so can damage the computer or
cause a fire.
12 3 87546
1 air vent 5 air vents
2 AC adapter
connector
3 serial connector 7 infrared sensor
4 docking connector 8 network connector
6 video connector
Dell™ Latitude™ C400 System Information 23
Bottom View
CAUTION: Do not block, push objects into, or allow dust to
accumulate in the air vents. Doing so can damage the computer or
cause a fire.
www.dell.com | support.dell.com
1
5
2
346
24 Dell™ Latitude™ C400 System Information
1 air vents
2 memory module/
modem cover
3 battery latch
4 air vents
5 battery/battery bay
6 battery gauge
Replacing the Battery
CAUTION: Using an incompatible battery may increase the risk of
fire or explosion. Replace the battery only with a compatible
battery purchased from Dell. The lithium-ion battery is designed
to work with your Dell™ computer.
NOTICE: If you choose to replace the battery with the computer in standby
mode, you have up to 3.5 minutes to safely complete the battery replacement
before the computer shuts down and loses any unsaved data.
To replace a battery in the battery bay:
1 Ensure that computer is either turned off, in a power management
mode, or connected to an electrical outlet.
2 If the computer is docked, undock it.
3 Slide and hold the battery bay latch release on the bottom of the
computer, and then slide the battery straight out from the bay.
4 Slide the new battery into the bay until the latch release clicks.
Dell™ Latitude™ C400 System Information 25
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Regulatory Notices
FCC Notices (U.S. Only)
Most Dell computers are classified by the Federal Communications
Commission (FCC) as Class B digital devices. To determine which
classification applies to your computer, examine all FCC registration labels
located on the bottom or back panel of your computer, on card-mounting
brackets, and on the cards themselves. If any one of the labels carries a Class
A rating, your entire computer is considered to be a Class A digital device. If
all labels carry an FCC Class B rating as distinguished by either an FCC ID
number or the FCC logo, ( ), your computer is considered to be a Class B
digital device.
Once you have determined your computer’s FCC classification, read the
appropriate FCC notice. Note that FCC regulations provide that changes
or modifications not expressly approved by Dell could void your authority to
operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
• This device may not cause harmful interference.
• This device must accept any interference received, including
interference that may cause undesired operation.
Class A
This equipment has been tested and found to comply with the limits for a
Class A digital device pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the manufacturer’s instruction
manual, may cause harmful interference with radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference, in which case you will be required to correct the interference at
your own expense.
26 Dell™ Latitude™ C400 System Information
Class B
This equipment has been tested and found to comply with the limits for a
Class B digital device pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the
manufacturer’s instruction manual, may cause interference with radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, you are encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
• Consult the dealer or an experienced radio/television technician for
help.
The following information is provided on the device or devices covered in
this document in compliance with FCC regulations:
• Model number: PP03L
Company name:
Dell Computer Corporation
One Dell Way
Round Rock, Texas 78682 USA
Dell™ Latitude™ C400 System Information 27
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