Clevo W940TU Bedienungsanleitung

W940TU

Preface

Notebook Computer

W940TU

Service Manual

Preface

Notice

The company reserves the right to revise this publication or to change its contents without notice. Information contained

herein is for reference only and does not constitute a commitment on the part of the manufacturer or any subsequent ven-

dor. They assume no responsibility or liability for any errors or inaccuracies that may appear in this publication nor are

they in anyway responsible for any loss or damage resulting from the use (or misuse) of this publication.

This publication and any accompanying software may not, in whole or in part, be reproduced, translated, transmitted or

reduced to any machine readable form without prior consent from the vendor, manufacturer or creators of this publica-

tion, except for copies kept by the user for backup purposes.

Brand and product names mentioned in this publication may or may not be copyrights and/or registered trademarks of

their respective companies. They are mentioned for identification purposes only and are not intended as an endorsement

of that product or its manufacturer.

Version 1.0

December 2013

Trademarks

Intel, Intel Core, Pentium and Celeron are trademarks of Intel Corporation.

Windows®is a registered trademark of Microsoft Corporation.

Other brand and product names are trademarks and /or registered trademarks of their respective companies.

Preface

III

Preface

About this Manual

This manual is intended for service personnel who have completed sufficient training to undertake the maintenance and

inspection of personal computers.

It is organized to allow you to look up basic information for servicing and/or upgrading components of the W940TU se-

ries notebook PC.

The following information is included:

Chapter 1, Introduction, provides general information about the location of system elements and their specifications.

Chapter 2, Disassembly, provides step-by-step instructions for disassembling parts and subsystems and how to upgrade

elements of the system.

Appendix A, Part Lists

Appendix B, Schematic Diagrams

Appendix C, Updating the FLASH ROM BIOS

Preface

IMPORTANT SAFETY INSTRUCTIONS

Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to per-

sons when using any electrical equipment:

1. Do not use this product near water, for example near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet

basement or near a swimming pool.

2. Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of elec-

trical shock from lightning.

3. Do not use the telephone to report a gas leak in the vicinity of the leak.

4. Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a fire. They may

explode. Check with local codes for possible special disposal instructions.

5. This product is intended to be supplied by a Listed Power Unit with an AC Input of 100 - 240V, 50 - 60Hz, DC Output

of 19V, 1.58A (30 Watts) minimum AC/DC Adapter.

CAUTION

This Computer’s Optical Device is a Laser Class 1 Product

FCC Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference.

This device must accept any interference received, including interference that may cause undesired operation.

Preface

Instructions for Care and Operation

The notebook computer is quite rugged, but it can be damaged. To prevent this, follow these suggestions:

1. Don’t drop it, or expose it to shock. If the computer falls, the case and the components could be damaged.

2. Keep it dry, and don’t overheat it. Keep the computer and power supply away from any kind of heating element. This

is an electrical appliance. If water or any other liquid gets into it, the computer could be badly damaged.

3. Follow the proper working procedures for the computer. Shut the computer down properly and don’t forget to save

your work. Remember to periodically save your data as data may be lost if the battery is depleted.

Do not expose the computer

to any shock or vibration. Do not place it on an unstable

surface. Do not place anything heavy

on the computer.

Do not expose it to excessive

heat or direct sunlight. Do not leave it in a place

where foreign matter or mois-

ture may affect the system.

Don’t use or store the com-

puter in a humid environment. Do not place the computer on

any surface which will block

the vents.

Do not turn off the power

until you properly shut down

all programs.

Do not turn off any peripheral

devices when the computer is

on.

Do not disassemble the com-

puter by yourself. Perform routine maintenance

on your computer.

Preface

4. Avoid interference. Keep the computer away from high capacity transformers, electric motors, and other strong mag-

netic fields. These can hinder proper performance and damage your data.

5. Take care when using peripheral devices.

Power Safety

The computer has specific power requirements:

• Only use a power adapter approved for use with this computer.

• Your AC adapter may be designed for international travel but it still requires a steady, uninterrupted power supply. If you are

unsure of your local power specifications, consult your service representative or local power company.

• The power adapter may have either a 2-prong or a 3-prong grounded plug. The third prong is an important safety feature; do

not defeat its purpose. If you do not have access to a compatible outlet, have a qualified electrician install one.

• When you want to unplug the power cord, be sure to disconnect it by the plug head, not by its wire.

• Make sure the socket and any extension cord(s) you use can support the total current load of all the connected devices.

• Before cleaning the computer, make sure it is disconnected from any external power supplies.

Use only approved brands of

peripherals. Unplug the power cord before

attaching peripheral devices.

Do not plug in the power

cord if you are wet. Do not use the power cord if

it is broken. Do not place heavy objects

on the power cord.



Power Safety

Warning

Before you undertake

any upgrade proce-

dures, make sure that

you have turned off the

power, and discon-

nected all peripherals

and cables (including

telephone lines and

power cord). It is advis-

able to also remove

your battery in order to

prevent accidentally

turning the machine

on.

Preface

VII

Preface

Battery Precautions

• Only use batteries designed for this computer. The wrong battery type may explode, leak or damage the computer.

• Do not continue to use a battery that has been dropped, or that appears damaged (e.g. bent or twisted) in any way. Even if the

computer continues to work with a damaged battery in place, it may cause circuit damage, which may possibly result in fire.

• Recharge the batteries using the notebook’s system. Incorrect recharging may make the battery explode.

• Do not try to repair a battery pack. Refer any battery pack repair or replacement to your service representative or qualified service

personnel.

• Keep children away from, and promptly dispose of a damaged battery. Always dispose of batteries carefully. Batteries may explode

or leak if exposed to fire, or improperly handled or discarded.

• Keep the battery away from metal appliances.

• Affix tape to the battery contacts before disposing of the battery.

• Do not touch the battery contacts with your hands or metal objects.

Battery Guidelines

The following can also apply to any backup batteries you may have.

• If you do not use the battery for an extended period, then remove the battery from the computer for storage.

• Before removing the battery for storage charge it to 60% - 70%.

• Check stored batteries at least every 3 months and charge them to 60% - 70%.



Battery Disposal

The product that you have purchased contains a rechargeable battery. The battery is recyclable. At the end of its useful life, under var-

ious state and local laws, it may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste

officials for details in your area for recycling options or proper disposal.

Caution

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer.

Discard used battery according to the manufacturer’s instructions.

Battery Level

Click the battery icon in the taskbar to see the current battery level and charge status. A battery that drops below a level of 10%

will not allow the computer to boot up. Make sure that any battery that drops below 10% is recharged within one week.

Preface

VIII

Preface

Related Documents

You may also need to consult the following manual for additional information:

User’s Manual on CD/DVD

This describes the notebook PC’s features and the procedures for operating the computer and its ROM-based setup pro-

gram. It also describes the installation and operation of the utility programs provided with the notebook PC.

System Startup

1. Remove all packing materials.

2. Place the computer on a stable surface.

3. Insert the battery and make sure it is locked in position.

4. Securely attach any peripherals you want to use with the computer

(e.g. keyboard and mouse) to their ports.

5. Attach the AC/DC adapter to the DC-In jack at the rear of the

computer, then plug the AC power cord into an outlet, and connect

the AC power cord to the AC/DC adapter.

6. Use one hand to raise the

lid/LCD to a comfortable viewing angle

(do

not exceed 127 degrees)

;

use the other hand (as illustrated in Figure

1) to support the base of the computer (Note: Never lift the computer

by the lid/LCD).

7. Press the power button to turn the computer “on”.

127

Figure 1

Opening the Lid/LCD/

Computer with AC/DC

Adapter Plugged-In



Shut Down

Note that you should always shut your computer down by choosing the Shut down command in Win-

dows (see below). This will help prevent hard disk or system problems.

Click Settings in the Charms Bar (use the Windows Logo Key + Ckey combination to access

the Charms Bar) and choose Shut down from the Power menu.

Choose Shut down or sign out > Shut down from the context menu (use the Windows Logo Key

+ Xkey combination to access the context menu).

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