Working On Your Thin Client; Safety Instructions; Before Working On Your Thin Client - Dell Wyse 5470 Service Manual

All-in-one thin client

Service manual (79 pages)

Table of Contents

Safety instructions

Prerequisites

Use the following safety guidelines to protect your thin client from potential damage and to ensure your personal safety. Unless otherwise

noted, each procedure included in this document assumes that the following conditions exist:

•

You have read the safety information that shipped with your thin client.

•

A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.

About this task

WARNING:

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

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

NOTE:

Before working on your thin client, read the safety information that shipped with your thin client. For additional

safety best practices information, see the Regulatory Compliance home page 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 ship with the product.

CAUTION:

To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching

an unpainted metal surface at the same time as touching a connector on the back of the thin client.

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 thin client and certain components may appear differently than shown in this document.

Before working on your thin client

You must perform the below steps before you work on the thin client.

About this task

NOTE:

For more safety best practices, see the Regulatory Compliance home page at

regulatory_compliance.

Steps

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

2. Click Start > Power > Shut down to shut down your thin client.

NOTE:

For shut down instructions, see documentation of the respective operating system.

3. Disconnect your thin client and all the attached devices from their electrical outlets.