Lenovo ThinkCentre A58 User manual

ThinkCentre

SafetyandWarrantyGuide

Note

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

understand the following:

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

v Chapter 3, “Lenovo Limited Warranty,” on page 19

v Chapter 6, “Notices,” on page 35

First Edition (September 2009)

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 ............1

Conditions that require immediate action .............1

General safety guidelines ..................2

Service and upgrades ..................2

Static electricity prevention ................3

Power cords and power adapters ..............4

Voltage-selection switch..................5

Extension cords and related devices .............5

Plugs and outlets ....................6

External devices ....................6

Batteries .......................6

Heat and product ventilation ................7

Operating environment ..................8

Electrical current safety information ..............8

Lithium battery notice ...................9

Modem safety information .................10

Laser compliance statement .................10

Power supply statement ..................11

Products with television tuner options installed ..........11

Note to CATV system installer ...............11

Example of antenna grounding ...............12

Data safety ......................13

Cleaning and maintenance .................14

Using headphones or earphones ...............14

Additional safety information ................14

Chapter 2. Information resources ..............15

Online Books folder ...................15

Lenovo ThinkVantage Tools .................15

Lenovo Care ......................16

Lenovo Welcome ....................16

Access Help ......................16

Lenovo Web site (http://www.lenovo.com)............16

Recording your computer information .............17

Chapter 3. Lenovo Limited Warranty .............19

Warranty Information ...................23

Suplemento de Garantía para México..............27

Chapter 4. Worldwide Lenovo Support telephone list .......29

Chapter 5. Customer Replaceable Units (CRUs) .........33

Chapter 6. Notices ...................35

Export classification notice .................36

Television output notice ..................36

Trademarks ......................36

Electronic emissions notices .................37

Federal Communications Commission Declaration of Conformity . . . 37

Industry Canada Class B emission compliance statement ......38

European Union EMC Directive conformance statement ......38

EU-EMC Directive (2004/108/EC) EN 55022 class B Statement of

Compliance ....................38

Korean Class B statement.................39

Japanese VCCI Class B statement ..............39

Japanese statement of compliance for products less than or equal to 20 A

per phase .....................39

Keyboard and mouse compliance statement for Taiwan.......40

Lenovo product service information for Taiwan .........40

Federal Communications Commission (FCC) and telephone company

requirements .....................40

Canadian Department of Communications certification label ......41

Power cord notice ....................42

Polyvinyl Chloride (PVC) cable and cord notice ..........44

China substance disclosure table ...............44

Turkish statement of compliance ...............45

Waste electrical and electronic equipment (WEEE) notices .......45

European Union (EU) WEEE statement ............45

Japanese recycling statement.................46

Collecting and recycling a disused Lenovo computer or monitor . . . 46

Disposing of Lenovo components ..............46

Disposing of disused lithium batteries from Lenovo computers ....46

iv Safety and Warranty Guide

Indholdsfortegnelse

Kapitel 1. Vigtige sikkerhedsforskrifter .............49

Forhold, der kræver øjeblikkelig handling ............49

Generelle sikkerhedsforskrifter ................50

Service og opgraderinger .................50

Undgå statisk elektricitet .................51

Netledninger og omformere ................52

Spændingsvælgerkontakt .................52

Forlængerledninger og lignende udstyr ............53

Stik og stikkontakter ...................53

Eksterne enheder ....................54

Batterier .......................54

Varme og ventilation ..................55

Driftsbetingelser ....................56

Sikkerhedsforskrifter vedrørende elektrisk strøm ..........56

Litiumbatteri ......................57

Sikkerhedsforskrifter for modem ............... 58

Sikkerhedsforskrifter for laser ................ 58

Sikkerhedsforskrifter for strømforsyning ............. 58

Produkter med tv-tuner .................. 59

Bemærkning vedrørende kabel-tv-installationer ......... 59

Eksempel på antenne med jordforbindelse ........... 60

Datasikkerhed ..................... 61

Rengøring og vedligeholdelse ................ 61

Brug af hovedtelefoner eller hovedsæt ............. 62

Andre sikkerhedsforskrifter ................. 62

Kapitel 2. Flere oplysninger ................ 63

Folder med onlinebøger .................. 63

Lenovo ThinkVantage Tools ................. 63

Lenovo Care ...................... 64

Lenovo Welcome .................... 64

Access-hjælp ...................... 64

Lenovo-websted (http://www.lenovo.com) ............ 65

Registrering af oplysninger om computeren ........... 65

Kapitel 3. Lenovo Begrænset garanti ............. 67

Garantioplysninger .................... 72

Suplemento de Garantía para México .............. 76

Kapitel 4. Oversigt over telefonnumre til Lenovo Support ...... 77

Kapitel 5. CRU-dele (Customer Replaceable Units) ........ 81

Kapitel 6. Bemærkninger ................. 83

Bemærkning om eksportklassificering ............. 84

Bemærkning om tv-output ................. 84

Varemærker ...................... 84

Bemærkninger vedr. elektronisk stråling ............. 85

Federal Communications Commission Declaration of Conformity . . . 85

Industry Canada Class B emission compliance statement ...... 86

Erklæring vedrørende EU-krav ............... 86

EU-EMC Directive (2004/108/EC) EN 55022 class B Statement of Comp-

liance ...................... 86

Korean Class B statement ................. 87

Japanese VCCI Class B statement .............. 87

Japanese statement of compliance for products less than or equal to 20 A

per phase ..................... 87

Keyboard and mouse compliance statement for Taiwan ....... 88

Lenovo product service information for Taiwan ......... 88

Federal Communications Commission (FCC) and telephone company

requirements ..................... 88

Canadian Department of Communications certification label ...... 89

Netledninger ...................... 90

Bemærkning vedr. PVC-kabel og -ledning ............ 91

China substance disclosure table ............... 92

Overholdelse af direktiv - Tyrkiet ............... 92

Bemærkninger vedr. affald af elektrisk og elektronisk udstyr (WEEE) . . . 93

Erklæring vedrørende WEEE i EU .............. 93

Japanese recycling statement ................. 94

Collecting and recycling a disused Lenovo computer or monitor . . . 94

Disposing of Lenovo components .............. 94

Disposing of disused lithium batteries from Lenovo computers .... 94

vi Sikkerhedsforskrifter og garantioplysninger

Sisältö

Luku 1. Tärkeät turvaohjeet ................. 95

Välittömiä toimia edellyttävät tapahtumat tai tilat .......... 95

Yleisiä turvaohjeita .................... 96

Huolto ja päivitykset .................. 96

Staattiselta sähköltä suojautuminen .............. 97

Verkkojohdot ja verkkolaitteet ............... 98

Jännitekytkin ..................... 99

Jatkojohdot ja niihin liittyvät laitteet ............. 99

Pistokkeet ja pistorasiat .................. 99

Ulkoiset laitteet ....................100

Paristot ja akut ....................100

Lämpö ja tuotteen tuuletus ................101

Käyttöympäristö ....................102

Sähköturvaohjeet .....................102

Litiumparistoon liittyvä turvaohje ...............103

Modeemiin liittyviä turvaohjeita ............... 104

Laserturvaohjeet ..................... 104

Virtalähteeseen liittyvät turvaohjeet .............. 105

Tuotteet, joihin on asennettu televisioviritin ............ 105

Ohje kaapeli-TV-järjestelmän asentajalle ............ 105

Esimerkki antennin maadoituksesta ............. 106

Tietoturva ....................... 107

Puhdistus ja ylläpito ................... 108

Kuulokkeiden käyttö ................... 108

Muita turvaohjeita .................... 108

Luku 2. Tietolähteitä ................... 109

Online Books -kansio ................... 109

Lenovo ThinkVantage Tools ................. 109

Lenovo Care ...................... 110

Lenovo Welcome .................... 110

Access Help ...................... 110

Lenovon Web-sivusto (http://www.lenovo.com) .......... 111

Tietokoneen tunnistetietojen kirjaus .............. 111

Luku 3. Lenovon takuuehdot (rajoitettu takuu).......... 113

Takuutietoja ...................... 119

Suplemento de Garantía para México .............. 122

Luku 4. Lenovon tukipalvelun maakohtaiset puhelinnumerot .... 125

Luku 5. Asiakkaan vaihdettavissa olevat osat (CRU:t) ....... 129

Luku 6. Huomioon otettavaa ................ 131

Vientiluokitusta koskeva huomautus .............. 132

Television käyttöön liittyvä huomautus ............. 132

Tavaramerkit ...................... 133

Tietoja sähkömagneettisesta säteilystä .............. 133

Ilmoitus FCC (Federal Communications Commission) -säännösten

mukaisuudesta ................... 133

Ilmoitus kanadalaisen laitehyväksynnän (Industry Canada) luokan B

mukaisuudesta ................... 134

Ilmoitus direktiivin mukaisuudesta – Euroopan unionin direktiivi

sähkömagneettista yhteensopivuutta koskevan jäsenvaltioiden

lainsäädännön lähentämisestä .............. 134

Ilmoitus Euroopan unionin direktiivin 2004/108/EY ja standardin EN

55022 luokan B mukaisuudesta .............. 134

Ilmoitus Korean Class B -määrityksen mukaisuudesta ....... 135

Ilmoitus Japanin VCCI Class B -määrityksen mukaisuudesta ..... 136

Japania koskeva ilmoitus tuotteista, joissa on enintään 20 A:n sähkövirta

vaihetta kohti .................... 136

Ilmoitus näppäimistön ja hiiren hyväksynnästä (Taiwan) ...... 136

Lenovo-tuotteiden huolto Taiwanissa ............. 136

Federal Communications Commission (FCC) -säännökset ja

puhelinyhtiöiden vaatimukset ............... 136

Kanadan tietoliikenneministeriön (Canadian Department of

Communications) myöntämä laitehyväksyntä .......... 137

Verkkojohtoa koskeva huomautus ............... 138

PVC-kaapelia ja -verkkojohtoa koskeva huomautus ......... 140

Laitteen sisältämien materiaalien luettelo (Kiina) .......... 141

Ilmoitus Turkin määräysten mukaisuudesta ........... 141

Sähkö- ja elektroniikkalaiteromua (WEEE) koskeva huomautus ..... 142

Euroopan unionin sähkö- ja elektroniikkalaiteromua (WEEE) koskeva

ilmoitus ...................... 142

Japania koskevat kierrätysohjeet ............... 143

Käytöstä poistettujen Lenovo-tietokoneiden ja -näyttimien keräys ja

kierrätys ..................... 143

Lenovo-osien loppukäsittely ................ 143

Lenovo-tietokoneiden käytöstä poistettujen litiumparistojen

loppukäsittely .................... 143

viii Turvaohjeet ja takuutiedot

Innhold

Kapittel 1. Viktig sikkerhetsinformasjon ............145

Situasjoner som krever øyeblikkelig handling ...........145

Generelle retningslinjer for sikkerhet ..............146

Service og oppgraderinger .................146

Hindre statisk elektrisitet .................147

Strømledninger og strømforsyningsenheter ...........148

Spenningsvelger ....................149

Skjøteledninger og tilhørende utstyr .............149

Støpsler og stikkontakter .................150

Eksterne enheter ....................150

Batterier .......................150

Varme og ventilasjon i produktet ..............151

Driftsmiljø ......................152

Sikkerhetsinformasjon - strøm ................153

Litiumbatteri ......................153

Modemsikkerhet ..................... 154

Laserutstyr ...................... 154

Strømforsyning ..................... 155

Produkter med TV-tuner installert ............... 155

Merknad til installatører av CATV-systemer .......... 156

Eksempel på antennejording ................ 156

Datasikkerhet ...................... 157

Rengjøring og vedlikehold ................. 157

Bruke hodetelefoner eller øretelefoner ............. 158

Annen sikkerhetsinformasjon ................ 158

Kapittel 2. Informasjonsressurser .............. 159

Mappen Online Books ................... 159

Lenovo ThinkVantage Tools ................. 159

Lenovo Care ...................... 160

Lenovo Welcome .................... 160

Access Help ...................... 160

Lenovos nettsted (http://www.lenovo.com) ........... 161

Notere opplysninger om maskinen .............. 161

Kapittel 3. Lenovo Garantibetingelser ............. 163

Garantibetingelser .................... 167

Suplemento de Garantía para México .............. 171

Kapittel 4. Verdensomfattende telefonliste til Lenovos brukerstøtte 173

Kapittel 5. Deler som kunden kan skifte ut (CRUer) ........ 177

Kapittel 6. Merknader .................. 179

Merknad om eksportklassifisering ............... 180

Merknad om utsignaler for TV ................ 180

Varemerker ...................... 180

Elektronisk stråling .................... 181

Elektromagnetisk stråling ................. 181

Industry Canada Class B emission compliance statement ...... 182

Tilpasning til EØS-avtalen og EU-direktiv ........... 182

EU-EMC Directive (2004/108/EC) EN 55022 class B Statement of

Compliance .................... 182

Korean Class B statement ................. 183

Japanese VCCI Class B statement .............. 183

Japanese statement of compliance for products less than or equal to 20 A

per phase ..................... 183

Keyboard and mouse compliance statement for Taiwan ....... 184

Lenovo product service information for Taiwan ......... 184

Federal Communications Commission (FCC) and telephone company

requirements ..................... 184

Canadian Department of Communications certification label ...... 185

Strømledning ...................... 186

PVC-ledning ...................... 188

China substance disclosure table ............... 189

Turkish statement of compliance ............... 189

Merknader om avfall fra elektriske og elektroniske produkter (WEEE) . . . 190

Den europeiske union (EU) og WEEE-direktivet ......... 190

Japanese recycling statement ................. 191

Collecting and recycling a disused Lenovo computer or monitor . . . 191

Disposing of Lenovo components .............. 191

Disposing of disused lithium batteries from Lenovo computers .... 191

x Sikkerhet og garantier

Innehåll

Kapitel 1. Viktig säkerhetsinformation .............193

Situationer som kräver omedelbara åtgärder ............193

Allmänna säkerhetsanvisningar ................194

Service och uppgraderingar ................194

Förhindra statisk elektricitet ................195

Nätsladdar och nätadaptrar ................196

Spänningsomkopplare ..................196

Förlängningssladdar och liknande utrustning ..........197

Stickkontakter och eluttag .................197

Externa enheter ....................198

Batterier .......................198

Värme och luftcirkulation .................199

Driftmiljö ......................200

Säkerhetsinformation om elektrisk ström .............200

Batteri ........................201

Säkerhetsanvisningar för modem ...............201

Information om laserprodukt ................ 202

Information om strömtillförsel ................ 203

Produkter med TV-tuner installerad .............. 203

Meddelande till CATV-systeminstallatör ............ 203

Exempel på antennjordning ................ 204

Datasäkerhet ...................... 205

Rengöring och underhåll .................. 206

Använda headset eller hörlurar ................ 206

Ytterligare säkerhetsinformation ............... 206

Kapitel 2. Informationskällor ................ 207

Mappen Online-böcker .................. 207

Lenovo ThinkVantage Tools ................. 207

Lenovo Care ...................... 208

Lenovo Welcome .................... 208

Access - Hjälp ..................... 208

Lenovos webbplats (http://www.lenovo.com) ........... 208

Registrera information om datorn ............... 209

Kapitel 3. Lenovo Begränsad Garanti ............. 211

Garantiinformation .................... 212

Suplemento de Garantía para México .............. 219

Kapitel 4. Telefonlista för Lenovo-Support i hela världen ...... 221

Kapitel 5. Reservdelar som kunden själv kan byta ut (CRU) ..... 225

Kapitel 6. Övrig information ................ 227

Exportklassificering .................... 228

Information om funktioner för TV ............... 228

Varumärken ...................... 228

Anmärkningar om elektromagnetisk strålning ........... 229

FCCs (Federal Communications Commission) deklaration om överens-

stämmelse ..................... 229

Information om elektromagnetisk strålning (för användare i Kanada) 230

Intyg om överensstämmelse med EU-direktiv .......... 230

Intyg om klass B-överensstämmelse enligt EUs EMC-direktiv (2004/108/

EG) EN 55022 .................... 230

Koreansk klass B ................... 231

Japansk VCCI-klass B .................. 231

Information om produkter med mindre än eller lika med 20 A per fas

(för användare i Japan) ................. 231

Information om kompatibilitet för tangentbord och mus (för användare i

Taiwan) ...................... 232

Information om Lenovoproduktservice (för användare i Taiwan) . . . 233

FCC-krav och teleleverantörens krav .............. 234

Kanadensiska kommunikationsdepartementets certifiering ....... 235

Information om nätsladdar ................. 235

PVC-kablar och information om nätsladdar ............ 236

Deklaration av farliga ämnen (Kina) .............. 236

Intyg om överensstämmelse för Turkiet ............. 237

Avfall från elektriska eller elektroniska produkter (WEEE) ....... 237

Europeiska unionens (EU) WEEE .............. 237

Återvinning i Japan .................... 238

Samla in och återvinna en kasserad Lenovo-dator eller -bildskärm . . . 238

Hantera kasserade komponenter från Lenovo .......... 238

Kassera litiumbatterier från Lenovo-datorer ........... 238

xii Handbok för säkerhet och garanti

Chapter 1. Important safety information

Note: Be sure to read and understand 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 19.

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) are shipped 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 Service

Provider.

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 Lenovo Support telephone list,” on

page 29.

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.

2 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 a 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

ThinkCentre User 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.

CAUTION:

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.

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.

Chapter 1. Important safety information 3

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.

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.

4 Safety and Warranty Guide

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

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.

Chapter 1. Important safety information 5

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

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

should only be replaced with approved parts.

6 Safety and Warranty Guide

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Lenovo ThinkCentre A58 User manual

Lenovo ThinkCentre A58 User manual

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