Safety Instructions; Before Working Inside Your Computer; Before You Begin - Dell Inspiron 24-5491 Service Manual

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Table Of Contents

Table of Contents

Use the following safety guidelines to protect your computer from potential damage and ensure your personal safety.

NOTE:

Before working inside your computer, read the safety information that shipped with your computer. For more

safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.

NOTE:

Disconnect all power sources before opening the computer cover or panels. After you finish working inside the

computer, replace all covers, panels, and screws before connecting to the electrical outlet.

CAUTION:

To avoid damaging the computer, ensure that the work surface is flat and clean.

CAUTION:

To avoid damaging the components and cards, handle them by their edges, and avoid touching pins and

contacts.

CAUTION:

You should only perform troubleshooting and repairs as authorized or directed by the Dell technical

assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety

instructions that shipped with the product or at www.dell.com/regulatory_compliance.

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.

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 or thumb-screws that you must disengage before disconnecting the cable. When

disconnecting cables, keep them evenly aligned to avoid bending any connector pins. When connecting cables, ensure

that the ports and connectors are correctly oriented and aligned.

CAUTION:

Press and eject any installed card from the media-card reader.

Topics:

•

Before working inside your computer

•

Electrostatic discharge—ESD protection

•

ESD field service kit

•

Transporting sensitive components

•

After working inside your computer

Before working inside your computer

NOTE:

The images in this document may differ from your computer depending on the configuration you ordered.

Before you begin

Steps

1. Save and close all open files and exit all open applications.

2. Shut down your computer. Click Start >

NOTE:

If you are using a different operating system, see the documentation of your operating system for shut-down

instructions.

3. Disconnect your computer and all attached devices from their electrical outlets.

4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.