Lenovo ThinkPad L412 Bedienungsanleitung

ThinkPad L412 and L512

Service and Troubleshooting Guide

Note

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

vSafety and Warranty Guide

vWireless related information in online Access Help and Appendix C, “Notices,” on page 19.

vRegulatory Notice

The Safety and Warranty Guide and the Regulatory Notice have been uploaded on the Web site. To refer to them,

go to http://www.lenovo.com/think/support, click Troubleshooting, and then click User’s guides and

manuals.

Third Edition (March 2010)

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

Important safety information ......v

Conditions that require immediate action . . v

Safety guidelines ..........vi

Batteries ............vii

Rechargeable battery notice .....viii

Lithium coin cell battery notice.....ix

Electrical current safety information . . . x

Laser compliance statement ......xi

Chapter 1. Finding information .....1

Lenovo ThinkVantage Toolbox ......1

Frequently asked questions .......1

Chapter 2. Solving computer problems . . 3

Diagnosing problems .........3

Diagnosing problems using Lenovo

ThinkVantage Toolbox ........3

Diagnosing problems using PC-Doctor from

the Rescue and Recovery workspace . . . 3

Chapter 3. Getting help and service....5

Getting help and service ........5

Getting help on the Web ........5

Calling the Customer Support Center ....5

Getting help around the world ......7

Worldwide telephone list ........7

Appendix A. Warranty information ....13

Types of warranty service .......14

Suplemento de Garantía para México . . . 15

Appendix B. Customer Replaceable Units

(CRUs) .............17

Appendix C. Notices.........19

Notices..............19

Export classification notice ......20

Electronic emissions notices .......20

Federal Communications Commission

(FCC) Declaration of Conformity ....20

Industry Canada Class B emission

compliance statement ........21

Avis de conformité à la réglementation

d’Industrie Canada.........21

European Union - Compliance to the

Electromagnetic Compatibility Directive. . 21

EU-EMC Directive (2004/108/EC) EN

55022 class B Statement of Compliance . . 22

EU WEEE Statements .........23

Taiwan recycle statement........23

ENERGY STAR model information ....23

Notice for Safety and Warranty information 25

Notice for Regulatory information ....25

Trademarks ............27

iv ThinkPad L412 and L512 Service and Troubleshooting Guide

Important safety information

Note:

Read important safety information first.

This information can help you safely use your 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, see

Chapter 3, Warranty Information in the Safety and Warranty Guide. The latest

Safety and Warranty Guide has been uploaded on the Web site. See “Notice for

Safety and Warranty information” on page 25.

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 the following Web site:

http://www.lenovo.com/support/phone

Frequently inspect your computer and its components for damage or 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.

vPower cords, plugs, power adapters, extension cords, surge protectors, or

power supplies that are cracked, broken, or damaged.

vSigns of overheating, smoke, sparks, or fire.

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

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

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

product.

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

product, the power cord or power adapter.

vThe computer product, power cord, or power adapter has been exposed to

water.

vThe product has been dropped or damaged in any way.

vThe 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.

Safety guidelines

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

property damage.

vi ThinkPad L412 and L512 Service and Troubleshooting Guide

For more information, see Chapter 1, Important safety information in the

Safety and Warranty Guide. The latest Safety and Warranty Guide has been

uploaded on the Web site. See “Notice for Safety and Warranty information”

on page 25.

Batteries

DANGER

Personal computers manufactured by Lenovo contain a 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.

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.

Important safety information vii

Rechargeable battery notice

DANGER

Do not attempt to disassemble or modify the battery pack. Attempting to do so

can cause an explosion, or liquid leakage from the battery pack. A battery pack

other than the one specified by Lenovo, or a disassembled or modified battery

pack is not covered by the warranty.

If the rechargeable battery pack is incorrectly replaced, there is danger of an

explosion. The battery pack contains a small amount of harmful substances. To

avoid possible injury:

vReplace only with a battery of the type recommended by Lenovo.

vKeep the battery pack away from fire.

vDo not expose it to water or rain.

vDo not attempt to disassemble it.

vDo not short-circuit it.

vKeep it away from children.

vDo not drop the battery pack.

Do not put the battery pack in trash that is disposed of in landfills. When

disposing of the battery, comply with local ordinances or regulations.

The battery pack should be stored at room temperature, charged to approximately

30 to 50% of capacity. We recommend that battery pack be charged about once

per year to prevent overdischarge.

viii ThinkPad L412 and L512 Service and Troubleshooting Guide

Lithium coin cell battery notice

DANGER

Danger of explosion if battery is incorrectly replaced.

When replacing the lithium coin cell battery, use only the same or an equivalent

type that is recommended by the manufacturer. The battery contains lithium and

can explode if not properly used, handled, or disposed of.

Do not:

vThrow or immerse into water

vHeat to more than 100°C (212°F)

vRepair or disassemble

Dispose of the battery as required by local ordinances or regulations.

The following statement applies to users in the state of California, U.S.A.

California Perchlorate Information:

Products containing CR (manganese dioxide) lithium coin cell batteries may

contain perchlorate.

Perchlorate Material - special handling may apply.

See http://www.dtsc.ca.gov/hazardouswaste/perchlorate.

Important safety information ix

Electrical current safety information

DANGER

Electric current from power, telephone, and communication cables is hazardous.

To avoid a shock hazard:

vDo not use your computer during a lightning storm.

vDo not connect or disconnect any cables or perform installation, maintenance, or

reconfiguration of this product during an electrical storm.

vConnect all power cords to a properly wired and grounded electrical outlet.

vConnect to properly wired outlets any equipment that will be attached to this

product.

vWhenever possible, use one hand only to connect or disconnect signal cables.

vNever turn on any equipment when there is evidence of fire, water, or structural

damage.

vDisconnect the attached power cords, battery pack, and all the cables before you

open the device covers, unless instructed otherwise in the installation and

configuration procedures.

vDo not use your computer until you have closed the cover. Never use the

computer when the cover is open.

DANGER

vConnect and disconnect cables as described in the following procedures when

installing, moving, or opening covers on this product or attached devices.

To connect:

1. Turn everything OFF.

2. First, attach all cables to devices.

3. Attach signal cables to connectors.

4. Attach power cords to outlets.

5. Turn devices ON.

To disconnect:

1. Turn everything OFF.

2. First, remove power cords from

outlets.

3. Remove signal cables from

connectors.

4. Remove all cables from devices.

The power cord must be disconnected from the wall outlet or receptacle before

installing all other electrical cables connected to the computer.

The power cord may be reconnected to the wall outlet or receptacle only after all

other electrical cables have been connected to the computer.

xThinkPad L412 and L512 Service and Troubleshooting Guide

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