Dell Inspiron 5420 Manual de usuario
Dell Latitude 5420/E5420/E5420m
Owner's Manual
●Notes, Cautions, and Warnings
●Working on Your Computer
●Battery
●PC Card
●Secure Digital (SD) Card
●Subscriber Identity Module (SIM) Card
●ExpressCard
●Back Panel
●Keyboard Trim
●Keyboard
●Optical Drive
●Hard Drive
●Wireless Local Area Network (WLAN) Card
●Wireless Wide Area Network (WWAN) Card
●Memory
●CPU Door
●Heat Sink
●Processor
●Palm Rest
●LED Board
●ExpressCard/Smart Card/PCMCIA Module
●Bluetooth Card
●Display Assembly
●Brackets
●Modem Card
●Audio Board
●System Board
●Coin-Cell Battery
●Input/Output Panel
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Dell Latitude 5420/E5420/E5420m
Owner's Manual
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better
use of your computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss
of data if instructions are not followed.
WARNING: A WARNING indicates a potential for property damage,
personal injury, or death.
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Dell Latitude 5420/E5420/E5420m
Owner's Manual
Before Working Inside Your Computer
Use the following safety guidelines to help protect your computer from potential
damage and to help to ensure your personal safety. Unless otherwise noted, each
procedure included in this document assumes that the following conditions exist:
●You have performed the steps in Working on Your Computer.
●You have read the safety information that shipped with your computer.
●A component can be replaced or--if purchased separately--installed by
performing the removal procedure in reverse order.
WARNING: Before working inside your computer, read the safety
information that shipped with your computer. For additional safety
best practices information, see the Regulatory Compliance Homepage
at www.dell.com/regulatory_compliance.
CAUTION: Many repairs may only be done by a certified service
technician. You should only perform troubleshooting and simple
repairs as authorized in your product documentation, or as directed
by the online or telephone service and support team. Damage due to
servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the
product.
CAUTION: To avoid electrostatic discharge, ground yourself by using
a wrist grounding strap or by periodically touching an unpainted
metal surface, such as a connector on the back of the computer.
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 processor by its
edges, not by its pins.
CAUTION: When you disconnect a cable, pull on its connector or on
its pull-tab, not on the cable itself. Some cables have connectors with
locking tabs; if you are disconnecting this type of cable, press in on
the locking tabs before you disconnect the cable. As you pull
connectors apart, keep them evenly aligned to avoid bending any
connector pins. Also, before you connect a cable, ensure that both
connectors are correctly oriented and aligned.
NOTE: The color of your computer and certain components may appear
differently than shown in this document.
To avoid damaging your computer, perform the following steps before you begin
working inside the computer.
1. Ensure that your work surface is flat and clean to prevent the computer
cover from being scratched.
2. Turn off your computer (see Turning Off Your Computer).
3. If the computer is connected to a docking device (docked) such as the
optional Media Base or Battery Slice, undock it.
CAUTION: To disconnect a network cable, first unplug the cable
from your computer and then unplug the cable from the
network device.
4. Disconnect all network cables from the computer.
5. Disconnect your computer and all attached devices from their electrical
outlets.
6. Close the display and turn the computer upside-down on a flat work
surface.
NOTE: To avoid damaging the system board, you must remove the
main battery before you service the computer.
7. Remove the main battery (see Battery).
8. Turn the computer top-side up.
9. Open the display.
10. Press the power button to ground the system board.
CAUTION: To guard against electrical shock, always unplug
your computer from the electrical outlet before opening the
display.
CAUTION: Before touching anything inside your computer,
ground yourself by touching an unpainted metal surface, such
as the metal at the back of the computer. While you work,
periodically touch an unpainted metal surface to dissipate
static electricity, which could harm internal components.
11. Remove any installed ExpressCards or Smart Cards from the appropriate
slots.
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Dell Latitude 5420/E5420/E5420m
Owner's Manual
Turning Off Your Computer
CAUTION: To avoid losing data, save and close all open files and exit
all open programs before you turn off your computer.
1. Shut down the operating system:
❍In Windows Vista :
Click Start , then click the arrow in the lower-right corner of the
Start menu as shown below, and then click Shut Down.
❍In Windows XP:
Click Start →Turn Off Computer →Turn Off . The computer turns
off after the operating system shutdown process is complete.
2. Ensure that the computer and all attached devices are turned off. If your
computer and attached devices did not automatically turn off when you
shut down your operating system, press and hold the power button for
about 4 seconds to turn them off.
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