Lenovo ThinkCentre Safety And Warranty Manual

ThinkCentre

Safety and Warranty Guide

Inside

Important safety information

Information resources

Warranty and other notices

Customer Replaceable Units (CRUs)

ThinkCentre

Safety and Warranty Gui d e

Note:

Before using this information and the product it supports, be sure to read the following:

v Chapter 1, “Important safety information,” on page 9

v Chapter 3, “Lenovo Limited Warranty,” on page 29

v Chapter 6, “Notices,” on page 53

Third

Edition (June 2008)

Portions © Copyright International Business Machines Corporation 2005.

LENOVO products, data, computer software, and services have been developed

exclusively at private expense and are sold to governmental entities as commercial items

as defined by 48 C.F.R. 2.101 with limited and restricted rights to use, reproduction and

disclosure.

LIMITED AND RESTRICTED RIGHTS NOTICE: If products, data, computer software, or

services are delivered pursuant a General Services Administration ″GSA″ contract, use,

reproduction, or disclosure is subject to restrictions set forth in Contract No.

GS-35F-05925.

Contents

Chapter 1. Important safety information . . . . . . . . . . . 9

Conditions that require immediate action . . . . . . . . . . . . 9

General safety guidelines . . . . . . . . . . . . . . . . . 10

Service and upgrades . . . . . . . . . . . . . . . . . 10

Static electricity prevention . . . . . . . . . . . . . . . 11

Power cords and power adapters . . . . . . . . . . . . . 12

Voltage-selection switch . . . . . . . . . . . . . . . . . 13

Extension cords and related devices . . . . . . . . . . . . 13

Plugs and outlets . . . . . . . . . . . . . . . . . . . 14

External devices . . . . . . . . . . . . . . . . . . . 14

Batteries . . . . . . . . . . . . . . . . . . . . . . 14

Heat and product ventilation . . . . . . . . . . . . . . . 15

Operating environment . . . . . . . . . . . . . . . . . 16

Electrical current safety information . . . . . . . . . . . . . 17

Lithium battery notice . . . . . . . . . . . . . . . . . . 17

Modem safety information . . . . . . . . . . . . . . . . .18

Laser compliance statement . . . . . . . . . . . . . . . . .18

Power supply statement . . . . . . . . . . . . . . . . . .19

Products with television tuner options installed . . . . . . . . . .20

Note to CATV system installer . . . . . . . . . . . . . . .20

Example of antenna grounding . . . . . . . . . . . . . . .21

Data safety . . . . . . . . . . . . . . . . . . . . . .22

Cleaning and maintenance . . . . . . . . . . . . . . . . .23

Using headphones or earphones . . . . . . . . . . . . . . .23

Additional safety information . . . . . . . . . . . . . . . .23

Chapter 2. Information resources . . . . . . . . . . . . . .25

Online Books folder . . . . . . . . . . . . . . . . . . .25

ThinkVantage Productivity Center . . . . . . . . . . . . . . .26

Access Help . . . . . . . . . . . . . . . . . . . . . .26

www.lenovo.com . . . . . . . . . . . . . . . . . . . .26

Recording your computer information . . . . . . . . . . . . .27

Chapter 3. Lenovo Limited Warranty . . . . . . . . . . . . .29

Warranty Information . . . . . . . . . . . . . . . . . . .33

Suplemento de Garantía para México . . . . . . . . . . . . . .45

Chapter 4. Worldwide telephone list . . . . . . . . . . . . .47

Chapter 5. Customer Replacement Units . . . . . . . . . . . .51

Chapter 6. Notices . . . . . . . . . . . . . . . . . . .43

Export classification notice . . . . . . . . . . . . . . . . .44

Television output notice . . . . . . . . . . . . . . . . . .54

Trademarks . . . . . . . . . . . . . . . . . . . . . .54

Electronic emissions notices . . . . . . . . . . . . . . . . .55

Federal Communications Commission (FCC) Declaration of Conformity 55

Industry Canada Class B emission compliance statement . . . . . .56

European Union EMC Directive conformance statement . . . . . .56

Korean Class B statement . . . . . . . . . . . . . . . . .57

Japanese VCCI Class B statement . . . . . . . . . . . . . .57

Japanese compliance for products less than or equal to 20A per phase 58

Keyboard and mouse compliance statement for Taiwan . . . . . . .58

Lenovo product service information for Taiwan . . . . . . . . .58

Federal Communications Commission (FCC) and telephone company

requirements . . . . . . . . . . . . . . . . . . . . .58

Canadian Department of Communications certification label . . . . . .59

Power cord notice . . . . . . . . . . . . . . . . . . . .60

Polyvinyl Chloride (PVC) cable and cord notice . . . . . . . . . .62

China substance disclosure table . . . . . . . . . . . . . . .63

Waste electrical and electronic equipment (WEEE) notices . . . . . . .63

European Union (EU) WEEE statement . . . . . . . . . . . .63

Japanese recycling statement . . . . . . . . . . . . . . . . .64

Collecting and recycling a disused Lenovo computer or monitor . . .64

Disposing of a Lenovo computer component . . . . . . . . . .64

Disposing of disused lithium batteries from Lenovo computers . . . .64

ENERGY STAR model information . . . . . . . . . . . . . .65

2 Safety and Warranty Guide

Table des matières

Avis aux lecteurs canadiens . . . . . . . . . . . . . . . 67

Chapitre 1. Consignes de sécurité . . . . . . . . . . . . . 71

Conditions qui nécessitent une action immédiate . . . . . . . . . 71

Consignes générales de sécurité . . . . . . . . . . . . . . . 73

Maintenance et mises à niveau . . . . . . . . . . . . . . 73

Protection antistatique . . . . . . . . . . . . . . . . . 74

Cordons et adaptateurs d’alimentation . . . . . . . . . . . . 74

Sélecteur de tension . . . . . . . . . . . . . . . . . . 75

Prolongateurs et dispositifs associés . . . . . . . . . . . . 76

Fiches et prises . . . . . . . . . . . . . . . . . . . 76

Périphériques externes . . . . . . . . . . . . . . . . . 77

Piles et batteries . . . . . . . . . . . . . . . . . . . 77

Chaleur et ventilation des produits . . . . . . . . . . . . . 78

Environnement d’exploitation . . . . . . . . . . . . . . . 79

Informations relatives à la sécurité du courant électrique . . . . . . .80

Pile au lithium . . . . . . . . . . . . . . . . . . . . .81

Informations relatives au modem . . . . . . . . . . . . . . .81

Conformité aux normes relatives aux appareils à laser . . . . . . . .82

Instruction concernant le bloc d’alimentation . . . . . . . . . . .83

Produits disposant de syntoniseurs TV . . . . . . . . . . . . .83

Remarque à l’intention des installateurs de systèmes CATV . . . . .83

Exemple de mise à la terre d’une antenne . . . . . . . . . . .84

Sécurité des données . . . . . . . . . . . . . . . . . . .85

Entretien et maintenance . . . . . . . . . . . . . . . . . .86

Utilisation de casques et d’écouteurs . . . . . . . . . . . . . .86

Autres consignes de sécurité . . . . . . . . . . . . . . . . .86

Chapitre 2. Sources d’informations . . . . . . . . . . . . . .87

Dossier Online Books . . . . . . . . . . . . . . . . . . .87

ThinkVantage Productivity Center . . . . . . . . . . . . . . .88

Access Help . . . . . . . . . . . . . . . . . . . . . .88

www.lenovo.com . . . . . . . . . . . . . . . . . . . .89

Tableau d’informations . . . . . . . . . . . . . . . . . .89

Chapitre 3. Déclaration de Garantie Lenovo . . . . . . . . . . .91

Informations relatives à la Garantie . . . . . . . . . . . . . .96

Suplemento de Garantía para México . . . . . . . . . . . . . 110

Chapitre 4. Liste de numéros de téléphone pour le monde entier . . 113

Chapitre 5. Unités remplaçables par l’utilisateur . . . . . . . . 117

Chapitre 6. Remarques . . . . . . . . . . . . . . . . . .119

Consigne relative à la classification des exportations . . . . . . . . .120

Consigne relative à la sortie télévision . . . . . . . . . . . . .120

Marques . . . . . . . . . . . . . . . . . . . . . . .121

Bruits radioélectriques . . . . . . . . . . . . . . . . . . .121

Déclaration de conformité de la Federal Communications Commission

(FCC) . . . . . . . . . . . . . . . . . . . . . .121

Avis de conformité à la réglementation d’Industrie Canada pour la classe

B . . . . . . . . . . . . . . . . . . . . . . . .122

Avis de conformité à la directive de l’Union européenne . . . . . .122

Corée - Avis de conformité pour la classe B . . . . . . . . . . .123

Japon - Avis de conformité aux exigences du Voluntary Control Council

for Interference (VCCI) pour la classe B . . . . . . . . . . .124

Avis de conformité aux normes japonaises pour les produits dont

l’intensité est inférieure ou égale à 20 A par phase . . . . . . .124

Conformité aux normes relatives au clavier et à la souris pour Taïwan 124

Taïwan - Informations de maintenance pour les produits Lenovo . . .124

Recommandations de la Federal Communications Commission (FCC) et des

entreprises de télécommunications [Etats Unis] . . . . . . . . .124

Recommandation d’Industrie Canada . . . . . . . . . . . . .124

Cordons d’alimentation . . . . . . . . . . . . . . . . . .126

Cordons d’alimentation et câbles sous enveloppe de PVC (chlorure de

polyvinyle) . . . . . . . . . . . . . . . . . . . . . .129

Directive RoHS pour la Chine . . . . . . . . . . . . . . . .129

Déchets d’Equipements Electriques et Electroniques (DEEE) . . . . . .130

Avis de conformité à la directive DEEE de l’Union Européenne . . . .130

Japon - Déclaration relative au recyclage . . . . . . . . . . . . .130

Collecte et recyclage d’un ordinateur ou d’un écran Lenovo usagé . . .130

Mise au rebut des composants des ordinateurs Lenovo . . . . . . .131

Mise au rebut des piles au lithium usagées des ordinateurs Lenovo . .131

Informations relatives à ENERGY STAR . . . . . . . . . . . . .131

4 ThinkCentre - Consignes de sécurité et déclaration de garantie

Inhaltsverzeichnis

Kapitel 1. Wichtige Sicherheitshinweise . . . . . . . . . . . 135

Situationen, die sofortige Maßnahmen erfordern . . . . . . . . . 135

Allgemeine Sicherheitsrichtlinien . . . . . . . . . . . . . . 137

Service und Upgrades . . . . . . . . . . . . . . . . . 137

Statische Aufladung vermeiden . . . . . . . . . . . . . . 138

Netzkabel und Netzteile . . . . . . . . . . . . . . . . 139

Spannungsauswahlschalter . . . . . . . . . . . . . . . 140

Verlängerungskabel und verwandte Einheiten . . . . . . . . . 141

Netzstecker und Steckdosen . . . . . . . . . . . . . . . 141

Externe Einheiten . . . . . . . . . . . . . . . . . . . 142

Batterien und Akkus . . . . . . . . . . . . . . . . . . 142

Erwärmung und Lüftung des Produkts . . . . . . . . . . . 142

Betriebsumgebung . . . . . . . . . . . . . . . . . . .144

Sicherheitshinweise zur elektrischen Sicherheit . . . . . . . . . .144

Hinweis zur Lithiumbatterie . . . . . . . . . . . . . . . . .145

Sicherheitshinweise zu Modems . . . . . . . . . . . . . . .146

Lasersicherheit . . . . . . . . . . . . . . . . . . . . .146

Hinweise zu Netzteilen . . . . . . . . . . . . . . . . . .147

Produkte mit installierter TV-Empfangseinheit . . . . . . . . . . .147

Hinweis an Installationsverantwortliche für Kabel-/CATV-Systeme . . .148

Beispiel für die Erdung der Antenne . . . . . . . . . . . . .148

Datensicherheit . . . . . . . . . . . . . . . . . . . . .149

Reinigung und Wartung . . . . . . . . . . . . . . . . . .150

Verwendung von Kopf- und Ohrhörern . . . . . . . . . . . . .150

Zusätzliche Sicherheitshinweise . . . . . . . . . . . . . . . .151

Kapitel 2. Informationsquellen . . . . . . . . . . . . . . .153

Ordner mit Onlinebüchern . . . . . . . . . . . . . . . . .153

ThinkVantage Productivity Center . . . . . . . . . . . . . . .154

Access Help . . . . . . . . . . . . . . . . . . . . . .154

www.lenovo.com . . . . . . . . . . . . . . . . . . . .155

Computerdaten notieren . . . . . . . . . . . . . . . . . .155

Kapitel 3. Lenovo Gewährleistung . . . . . . . . . . . . . .157

Gewährleistungsinformationen . . . . . . . . . . . . . . . .163

Kapitel 4. Liste der weltweit gültigen Telefonnummern . . . . . . .179

Kapitel 5. CRUs (Customer Replacement Units - durch den Kunden

austauschbare Funktionseinheiten) . . . . . . . . . . . . .183

Kapitel 6. Bemerkungen . . . . . . . . . . . . . . . . .185

Hinweis zur ECCN . . . . . . . . . . . . . . . . . . . .186

Hinweise zur TV-Ausgabe . . . . . . . . . . . . . . . . .186

Marken . . . . . . . . . . . . . . . . . . . . . . . .187

Hinweise zur elektromagnetischen Verträglichkeit . . . . . . . . .187

FCC-Konformitätserklärung (Federal Communications Commission) 187

Kanada - Hinweis zur elektromagnetischen Verträglichkeit (Klasse B) 188

EU-Richtlinie zur elektromagnetischen Verträglichkeit . . . . . . .188

Federal Communications Commission (FCC) and telephone company

requirements . . . . . . . . . . . . . . . . . . . . .190

Canadian Department of Communications certification label . . . . . .191

Hinweise zu Netzkabeln . . . . . . . . . . . . . . . . . .192

Hinweis zu Elektro- und Elektronikaltgeräten (WEEE) . . . . . . . .192

EU-Hinweis zu Elektro- und Elektronikaltgeräten (WEEE) . . . . . .194

Informationen zum ENERGY STAR-Modell . . . . . . . . . . . .195

6 Sicherheit und Gewährleistung

Indice

Capitolo 1. Informazioni importanti sulla sicurezza . . . . . . . 197

Condizioni che richiedono un intervento immediato . . . . . . . . 197

Indicazioni di sicurezza generali . . . . . . . . . . . . . . . 198

Servizio ed aggiornamenti . . . . . . . . . . . . . . . . 199

Prevenzione dell’elettricità statistica . . . . . . . . . . . . 200

Cavi e adattatori di alimentazione . . . . . . . . . . . . . 200

Interruttore di selezione del voltaggio . . . . . . . . . . . . 201

Cavi di estensione e dispositivi correlati . . . . . . . . . . . 202

Spine e prese . . . . . . . . . . . . . . . . . . . . 202

Periferiche esterne . . . . . . . . . . . . . . . . . . 203

Batterie . . . . . . . . . . . . . . . . . . . . . . 203

Surriscaldamento e ventilazione del prodotto . . . . . . . . . 204

Ambiente di lavoro . . . . . . . . . . . . . . . . . . 205

Informazioni sulla sicurezza della corrente elettrica . . . . . . . . 205

Avviso sulla batteria al litio . . . . . . . . . . . . . . . . .206

Informazioni sulla sicurezza del modem . . . . . . . . . . . . .207

Dichiarazione di conformità relativa al laser . . . . . . . . . . .207

Alimentatore . . . . . . . . . . . . . . . . . . . . . .208

Prodotti con installato sintonizzatore TV . . . . . . . . . . . . .209

Nota per gli installatori di sistemi CATV . . . . . . . . . . .209

Esempio di messa a terra di una antenna . . . . . . . . . . .210

Sicurezza dei dati . . . . . . . . . . . . . . . . . . . .211

Pulizia e manutenzione . . . . . . . . . . . . . . . . . .212

Utilizzo di cuffie o auricolari . . . . . . . . . . . . . . . .212

Ulteriori informazioni sulla sicurezza . . . . . . . . . . . . . .212

Capitolo 2. Informazioni . . . . . . . . . . . . . . . . . .213

Cartella Manuali in linea . . . . . . . . . . . . . . . . . .213

ThinkVantage Productivity Center . . . . . . . . . . . . . . .214

Accesso all’Help . . . . . . . . . . . . . . . . . . . . .214

www.lenovo.com . . . . . . . . . . . . . . . . . . . .214

Registrazione delle informazioni del computer . . . . . . . . . . .215

Capitolo 3. Limitazione della Garanzia Lenovo . . . . . . . . . .217

Informazioni sulla garanzia . . . . . . . . . . . . . . . . .224

Suplemento de Garantía para México . . . . . . . . . . . . . .237

Capitolo 4. Elenco di telefono mondiale . . . . . . . . . . . .239

Capitolo 5. Unità sostitutive per i clienti . . . . . . . . . . . .243

Capitolo 6. Informazioni particolari . . . . . . . . . . . . . .245

Informazioni particolari sulla classificazione delle esportazioni . . . . .246

Informazioni particolari sull’uscita TV . . . . . . . . . . . . .246

Marchi . . . . . . . . . . . . . . . . . . . . . . . .247

Informazioni sulle emissioni elettromagnetiche . . . . . . . . . .247

Dichiarazione di conformità FCC (Federal Communications Commission) 247

Dichiarazione di conformità industriale delle emissioni di Classe B per il

Canada . . . . . . . . . . . . . . . . . . . . . .249

Dichiarazione di conformità per la comunità europea . . . . . . .249

Dichiarazione di Classe B per la Corea . . . . . . . . . . . .250

Dichiarazione di Classe B VCCI per il Giappone . . . . . . . . .250

Conformità per il Giappone per i prodotti inferiori o uguali a 20A per

fase . . . . . . . . . . . . . . . . . . . . . . .251

Dichiarazione di conformità di tastiera e mouse per Taiwan . . . . .251

Informazioni sull’assistenza dei prodotti Lenovo per Taiwan . . . . .251

Federal Communications Commission (FCC) and telephone company

requirements . . . . . . . . . . . . . . . . . . . . .251

Canadian Department of Communications certification label . . . . . .252

Informazioni relative ai cavi di alimentazione . . . . . . . . . . .253

Informazioni sui cavi PVC (Polyvinyl Chloride) . . . . . . . . . .255

Tabella di comunicazione sostanza per Cina . . . . . . . . . . .256

Informazioni particolari su WEEE (waste electrical and electronic

equipment) . . . . . . . . . . . . . . . . . . . . . .256

Dichiarazione WEEE EU (European Union) . . . . . . . . . . .256

Dichiarazione di riciclo per il Giappone . . . . . . . . . . . . .257

Raccolta e riciclo di video o computer Lenovo in disuso . . . . . .257

Smaltimento di un componente di un computer Lenovo . . . . . .257

Smaltimento di batterie al litio in disuso da computer Lenovo . . . .258

Informazioni sul modello ENERGY STAR . . . . . . . . . . . .258

8 Guida in materia di sicurezza e garanzia

Chapter 1. Important safety information

Note

Please read the important safety information first.

This information can help you safely use your desktop or notebook personal

computer. Follow and retain all information included with your computer. The

information in this document does not alter the terms of your purchase

agreement or the Lenovo

®

Limited Warranty. For more information, refer to

Chapter 3, “Lenovo Limited Warranty,” on page 29.

Customer safety is important. Our products are developed to be safe and

effective. However, personal computers are electronic devices. Power cords,

power adapters, and other features can create potential safety risks that can

result in physical injury or property damage, especially if misused. To reduce

these risks, follow the instructions included with your product, observe all

warnings on the product and in the operating instructions, and review the

information included in this document carefully. By carefully following the

information contained in this document and provided with your product, you

can help protect yourself from hazards and create a safer computer work

environment.

Note: This information includes references to power adapters and batteries. In

addition to notebook computers, some products (such as speakers and

monitors) ship with external power adapters. If you have such a product, this

information applies to your product. In addition, computer products contain a

coin-sized internal battery that provides power to the system clock even when

the computer is unplugged, so the battery safety information applies to all

computer products.

Conditions that require immediate action

Products can become damaged due to misuse or neglect. Some product

damage is serious enough that the product should not be used again until it

has been inspected and, if necessary, repaired by an authorized servicer.

As with any electronic device, pay close attention to the product when it is

turned on. On very rare occasions, you might notice an odor or see a puff of

smoke or sparks vent from your product. Or you might hear sounds like

popping, cracking, or hissing. These conditions might merely mean that an

internal electronic component has failed in a safe and controlled manner. Or,

they might indicate a potential safety issue. However, do not take risks or

attempt to diagnose the situation yourself. Contact the Customer Support

Center for further guidance. For a list of Service and Support phone

numbers, see Chapter 4, “Worldwide telephone list,” on page 47.

Frequently inspect your computer and its components for damage, wear, or

signs of danger. If you have any question about the condition of a

component, do not use the product. Contact the Customer Support Center or

the product manufacturer for instructions on how to inspect the product and

have it repaired, if necessary.

In the unlikely event that you notice any of the following conditions, or if

you have any safety concerns with your product, stop using the product and

unplug it from the power source and telecommunication lines until you can

speak to the Customer Support Center for further guidance.

v Power cords, plugs, power adapters, extension cords, surge protectors, or

power supplies that are cracked, broken, or damaged.

v Signs of overheating, smoke, sparks, or fire.

v Damage to a battery (such as cracks, dents, or creases), discharge from a

battery, or a buildup of foreign substances on the battery.

v A cracking, hissing, or popping sound, or strong odor that comes from the

product.

v Signs that liquid has been spilled or an object has fallen onto the computer

product, the power cord, or power adapter.

v The computer product, power cord, or power adapter has been exposed to

water.

v The product has been dropped or damaged in any way.

v The product does not operate normally when you follow the operating

instructions.

Note:

If you notice these conditions with a product (such as an extension cord)

that is not manufactured for or by Lenovo, stop using that product until you

can contact the product manufacturer for further instructions, or until you get

a suitable replacement.

General safety guidelines

Always observe the following precautions to reduce the risk of injury and

property damage.

Service and upgrades

Do not attempt to service a product yourself unless instructed to do so by the

Customer Support Center or your documentation. Only use a service provider

who is approved to repair your particular product.

10 Safety and Warranty Guide

Note: Some computer parts can be upgraded or replaced by the customer.

Upgrades typically are referred to as options. Replacement parts approved for

customer installation are referred to as Customer Replaceable Units, or CRUs.

Lenovo provides documentation with instructions when it is appropriate for

customers to install options or replace CRUs. You must closely follow all

instructions when installing or replacing parts. The Off state of a power

indicator does not necessarily mean that voltage levels inside a product are

zero. Before you remove the covers from a product equipped with an ac power

cord, always make sure that the power is turned off and that the product is

unplugged from any power source. For more information on CRUs, refer to the

Hardware Installation and Replacement Guide for this product. If you have any

questions or concerns, contact the Customer Support Center.

Although there are no moving parts in your computer after the power cord has

been disconnected, the following warnings are required for your safety.

DANGER

Hazardous moving parts. Keep fingers and other body parts away.

Attention

Before replacing any CRUs, turn off the computer and wait three to

five minutes to let the computer cool before opening the cover.

Static electricity prevention

Static electricity, although harmless to you, can seriously damage computer

components and options. Improper handling of static-sensitive parts can cause

damage to the part. When you unpack an option or CRU, do not open the

static-protective package containing the part until the instructions direct you to

install it.

Chapter 1. Important safety information 11

When you handle options or CRUs, or perform any work inside the computer,

take the following precautions to avoid static-electricity damage:

v Limit your movement. Movement can cause static electricity to build up

around you.

v Always handle components carefully. Handle adapters, memory modules,

and other circuit boards by the edges. Never touch exposed circuitry.

v Prevent others from touching components.

v When you install a static-sensitive option or CRU, touch the static-protective

package containing the part to a metal expansion-slot cover or other

unpainted metal surface on the computer for at least two seconds. This

reduces static electricity in the package and your body.

v When possible, remove the static-sensitive part from the static-protective

packaging and install the part without setting it down. When this is not

possible, place the static-protective packaging on a smooth, level surface and

place the part on it.

v Do not place the part on the computer cover or other metal surface.

Power cords and power adapters

Use only the power cords and power adapters supplied by the product

manufacturer.

The power cords shall be safety approved. For Germany, it shall be H05VV-F,

3G, 0.75 mm

2

, or better. For other countries, the suitable types shall be used

accordingly.

Never wrap a power cord around a power adapter or other object. Doing so

can stress the cord in ways that can cause the cord to fray, crack, or crimp.

This can present a safety hazard.

Always route power cords so that they will not be walked on, tripped over, or

pinched by objects.

Protect power cord and power adapters from liquids. For instance, do not

leave your power cord or power adapter near sinks, tubs, toilets, or on floors

that are cleaned with liquid cleansers. Liquids can cause a short circuit,

particularly if the power cord or power adapter has been stressed by misuse.

Liquids also can cause gradual corrosion of power cord terminals and/or the

connector terminals on a power adapter, which can eventually result in

overheating.

Always connect power cords and signal cables in the correct order and ensure

that all power cord connectors are securely and completely plugged into

receptacles.

12 Safety and Warranty Guide

Do not use any power adapter that shows corrosion at the ac input pins or

shows signs of overheating (such as deformed plastic) at the ac input or

anywhere on the power adapter.

Do not use any power cords where the electrical contacts on either end show

signs of corrosion or overheating or where the power cord appears to have

been damaged in any way.

Voltage-selection switch

Some computers are equipped with a voltage-selection switch located near the

power-cord connection point on the computer and some computers do not

have a voltage-selection switch. Before you install your computer or relocate

your computer to another country or region, you must be certain that you

have matched your computer to the voltage available at your electrical outlet.

CAUTION:

You must know the voltage of the electrical connection (outlet) where your

computer will be connected. If you do not know the voltage, contact your

local electric company or refer to official Web sites or other literature for

travelers to the country or region where you are located.

If your computer has a voltage-selection switch, you must set the switch to

match the voltage available at your electrical outlet. Setting the

voltage-selection switch incorrectly will cause the computer to malfunction and

might cause permanent damage to the computer. Do not connect the computer

to an electrical outlet until you have verified that the voltage-selection switch

setting matches the voltage available at the electrical outlets.

If your computer does not have a voltage-selection switch, inspect the

voltage-rating label on the bottom of the computer and note the following:

v If the voltage-rating label shows a range of either ″100-127 V″ or ″200-240 V,″

you must ensure that the voltage provided at the electrical outlet matches

the voltage rating on the computer label. If it does not match, do not

attempt to connect the computer to the electrical outlet, unless an external

device such as a voltage-converting transformer is used.

v If the voltage-rating label shows a dual range of ″100-127 V″ and ″200-240

V,″ this signifies that the computer is suitable for worldwide operation and

the computer will automatically adjust to the voltage at the electrical outlet

regardless of the country or region where the computer is being connected.

Extension cords and related devices

Ensure that extension cords, surge protectors, uninterruptible power supplies,

and power strips that you use are rated to handle the electrical requirements of

the product. Never overload these devices. If power strips are used, the load

Chapter 1. Important safety information 13

should not exceed the power strip input rating. Consult an electrician for more

information if you have questions about power loads, power requirements, and

input ratings.

Plugs and outlets

If a receptacle (power outlet) that you intend to use with your computer

equipment appears to be damaged or corroded, do not use the outlet until it is

replaced by a qualified electrician.

Do not bend or modify the plug. If the plug is damaged, contact the

manufacturer to obtain a replacement.

Do not share an electrical outlet with other home or commercial appliances

that draw large amounts of electricity; otherwise, unstable voltage might

damage your computer, data, or attached devices.

Some products are equipped with a three-pronged plug. This plug fits only

into a grounded electrical outlet. This is a safety feature. Do not defeat this

safety feature by trying to insert it into a non-grounded outlet. If you cannot

insert the plug into the outlet, contact an electrician for an approved outlet

adapter or to replace the outlet with one that enables this safety feature. Never

overload an electrical outlet. The overall system load should not exceed 80

percent of the branch circuit rating. Consult an electrician for more information

if you have questions about power loads and branch circuit ratings.

Be sure that the power outlet you are using is properly wired, easily accessible,

and located close to the equipment. Do not fully extend power cords in a way

that will stress the cords.

Be sure that the power outlet provides the correct voltage and current for the

product you are installing.

Carefully connect and disconnect the equipment from the electrical outlet.

External devices

Do not connect or disconnect any external device cables other than USB and

1394 cables while the computer power is on; otherwise, you might damage

your computer. To avoid possible damage to attached devices, wait at least five

seconds after the computer is shut down to disconnect external devices.

Batteries

All personal computers manufactured by Lenovo contain a non-rechargeable

coin cell battery to provide power to the system clock. In addition, many

mobile products, such as notebook computers, utilize a rechargeable battery

pack to provide system power when in portable mode. Batteries supplied by

14 Safety and Warranty Guide

Lenovo for use with your product have been tested for compatibility and

should only be replaced with approved parts.

Never attempt to open or service any battery. Do not crush, puncture, or

incinerate batteries or short circuit the metal contacts. Do not expose the

battery to water or other liquids. Only recharge the battery pack strictly

according to instructions included in the product documentation.

Battery abuse or mishandling can cause the battery to overheat, which can

cause gasses or flame to “vent” from the battery pack or coin cell. If your

battery is damaged, or if you notice any discharge from your battery or the

buildup of foreign materials on the battery leads, stop using the battery and

obtain a replacement from the battery manufacturer.

Batteries can degrade when they are left unused for long periods of time. For

some rechargeable batteries (particularly Lithium Ion batteries), leaving a

battery unused in a discharged state could increase the risk of a battery short

circuit, which could shorten the life of the battery and can also pose a safety

hazard. Do not let rechargeable Lithium-Ion batteries completely discharge or

store these batteries in a discharged state.

Heat and product ventilation

Computers, AC adapters, and many accessories can generate heat when turned

on and when batteries are charging. Always follow these basic precautions:

v Do not leave your computer, AC adapter, or accessories in contact with your

lap or any part of your body for an extended period when the products are

functioning or when the battery is charging. Your computer, AC adapter, and

many accessories produce some heat during normal operation. Extended

contact with the body could cause discomfort or, potentially, a skin burn.

v Do not charge the battery or operate your computer, AC adapter, or

accessories near flammable materials or in explosive environments.

v Ventilation slots, fans, and heat sinks are provided with the product for

safety, comfort, and reliable operation. These features might inadvertently

become blocked by placing the product on a bed, sofa, carpet, or other

flexible surface. Never block, cover, or disable these features.

Inspect

your desktop computer for dust accumulation at least once every three

months. Before inspecting your computer, turn off the power and unplug the

computer’s power cord from the electrical outlet; then remove any dust from

vents and perforations in the bezel. If you notice external dust accumulation,

then examine and remove dust from the inside of the computer including heat

sink inlet fins, power supply vents, and fans. Always turn off and unplug the

computer before opening the cover. If possible, avoid operating your computer

Chapter 1. Important safety information 15

within 2 feet of high-traffic areas. If you must operate your computer in or

near a high-traffic area, inspect and, if necessary, clean your computer more

frequently.

For your safety and to maintain optimum computer performance, always

follow these basic precautions with your desktop computer:

v Keep the cover closed whenever the computer is plugged in.

v Regularly inspect the outside of the computer for dust accumulation.

v Remove dust from vents and any perforations in the bezel. More frequent

cleaning might be required for computers in dusty or high-traffic areas.

v Do not restrict or block any ventilation openings.

v Do not store or operate your computer inside furniture, as this might

increase the risk of overheating.

v Airflow temperatures into the computer should not exceed 35° C (95° F).

v Do not use non-desktop air filtration devices.

Operating environment

The optimal environment in which to use your computer is 10°C-35°C

(50°F-95°F) with humidity ranging between 35% and 80%. If your computer is

stored or transported in temperatures less than 10°C (50°F), allow the cold

computer to rise slowly to an optimal operating temperature of 10°C-35°C

(50°F-95°F) before use. This process could take two hours in extreme

conditions. Failure to allow your computer to rise to an optimal operating

temperature before use could result in irreparable damage to your computer.

If possible, place your computer in a well-ventilated and dry area without

direct exposure to sunshine.

Keep electrical appliances such as an electric fan, radio, high-powered

speakers, air conditioner, and microwave oven away from your computer

because the strong magnetic fields generated by these appliances can damage

the monitor and data on the hard disk drive.

Do not place any beverages on top of or beside the computer or other attached

devices. If liquid is spilled on or in the computer or an attached device, a short

circuit or other damage might occur.

Do not eat or smoke over your keyboard. Particles that fall into your keyboard

can cause damage.

16 Safety and Warranty Guide

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Lenovo ThinkCentre Safety And Warranty Manual

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