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Lenovo Laptop ThinkPad G41

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ThinkPad Computer

Hardware Maintenance Manual

July 2005

This manual supports: ThinkPad G40, G41

Note

Before using this information and the product it

supports, be sure to read the general information

under “Notices” on page 156.

First Edition (July 2005)

Portions © Copyright International Business Machines

Corporation 2005.

U.S. GOVERNMENT USERS – RESTRICTED RIGHTS:

Our products and/or services are provided with

RESTRICTED RIGHTS. Use, duplication or disclosure by

the Government is subject to the GSA ADP Schedule

contract with Lenovo Group Limited, if any, or the standard

terms of this commercial license, or if the agency is unable

to accept this Program under these terms, then we provide

this Program under the provisions set forth in Commercial

Computer Software–Restricted Rights at 52.227-19, FAR

when applicable, or under Rights in Data-General, FAR

52.227.14 (Alternate III).

Contents

About this manual . . . . . . . . . . . 1

Introduction . . . . . . . . . . . . . 3

Important service information . . . . . . . . . 3

Strategy for replacing FRUs . . . . . . . . 3

How to use error messages . . . . . . . . 4

Diskette compatibility matrix . . . . . . . . . 4

Safety notices: multilingual translations . . . . . . 4

Safety information. . . . . . . . . . . . 16

General safety . . . . . . . . . . . . 16

Electrical safety . . . . . . . . . . . 17

Safety inspection guide . . . . . . . . . 19

Handling devices that are sensitive to electrostatic

discharge . . . . . . . . . . . . 20

Grounding requirements . . . . . . . . . 21

Laser compliance statement. . . . . . . . . 21

General descriptions . . . . . . . . . . 25

Read this first . . . . . . . . . . . . . 25

What to do first . . . . . . . . . . . 25

Related service information . . . . . . . . . 28

Service site . . . . . . . . . . Web . 28

Restoring the preloaded system . . . . . . 28

Passwords . . . . . . . . . . . . . 30

Power management . . . . . . . . . . 33

Checkout guide . . . . . . . . . . . . 35

Testing the computer . . . . . . . . . . 35

Detecting system information with PC-Doctor. . . 37

Power system checkout . . . . . . . . . 38

ThinkPad G40, G41 . . . . . . . . . . . 43

Product overview . . . . . . . . . . . . 45

Specifications . . . . . . . . . . . . 45

Status indicators . . . . . . . . . . . 47

FRU tests . . . . . . . . . . . . . 49

Fn key combinations . . . . . . . . . . 51

Symptom-to-FRU index . . . . . . . . . . 52

Numeric error codes . . . . . . . . . . 52

Error messages . . . . . . . . . . . 56

Beep symptoms . . . . . . . . . . . 58

No-beep symptoms . . . . . . . . . . 58

LCD-related symptoms . . . . . . . . . 59

Intermittent problems . . . . . . . . . . 60

Undetermined problems . . . . . . . . . 60

FRU replacement notices . . . . . . . . . 61

Screw notices . . . . . . . . . . . . 61

Retaining serial numbers. . . . . . . . . 62

Removing and replacing a FRU. . . . . . . . 65

1010 Battery pack. . . . . . . . . . . 66

1020 Hard disk drive . . . . . . . . . . 67

Produktspecifikationer

Varumärke:	Lenovo
Kategori:	Laptop
Modell:	ThinkPad G41
Enhetsplacering:	Volledig ingebouwd
Dörrgångjärn:	Dubbele beweging
Inbyggd display:	Ja
Vikt:	35300 g
Bredd:	597 mm
Djup:	555 mm
Antal platsinställningar:	16 couverts
Plugg typ:	Type F
Automatiska program:	Ja
Torksystem:	Condensatie
Fördröjd starttimer:	Ja
Startfördröjning:	23 uur
Wi-Fi-kontroll:	Ja
Ljudnivå:	44 dB
Energie-efficiëntieklasse:	C
Blåtand:	Ja
Nuvarande:	10 A
Antal tvättprogram:	8
Justerbara fötter:	Ja
Färgkontrollpanel:	Antraciet
Färdig att använda indikatorlampa:	Ja
Varningssignal:	Ja
Saltindikator:	Ja
Sköljmedelsindikator:	Ja
Självrengörande filter:	Nee
Halvlastad:	Ja
Övre korg justerbar höjd:	Ja
Säkerhetsstopp för underkorg:	Ja
Automatisk dörröppning:	Ja
Maximal varmvattentemperatur:	60 °C
Vuilsensor:	Nee
Höjd under bänkskiva:	818 mm
Styr appar som stöds:	hOn
AC-ingångsspänning:	220 - 240 V
Antibakteriellt-filter:	Nee
Inbyggda smarta sensorer:	Nee
Varumärkesspecifika egenskaper:	Perfect Rapid Zone