Dell Inspiron 5420 Bedienungsanleitung

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

●Power Connector

●Modem Connector

●Thermal Fan

●Speaker

●Display Bezel

●Display Panel

●Display Hinges

●Camera

●Specifications

●System Setup

●Diagnostics

●Contacting Dell

P16G

2011 — 07 A00

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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

Working on Your Computer

●Before Working Inside Your Computer

●Recommended Tools

●Turning Off Your Computer

●After Working Inside Your Computer

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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.

Back to Contents Page

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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Dell Latitude 5420/E5420/E5420m

Owner's Manual

Battery

●Removing the Battery

●Installing the Battery

Back to Contents Page

Dell Latitude 5420/E5420/E5420m Owner's Manual

Removing the Battery

1. Follow the procedures in Before Working On Your Computer.

2. Slide the release latches to unlock the battery.

3. Remove the battery from the computer.

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