Lenovo G460 User Manual

Lenovo G460

Hardware Maintenance Manual

Note:

Before using this information and the product it supports, be sure to read the general information under “Notices” on page 86.

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

private expense and are sold to governmental entities as commercial items as dened 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.

iii

Contents

About this manual ....................................... iv

Safety information ........................................ 1

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

Electrical safety .............................................. 3

Safety inspection guide .................................. 5

Handling devices that are sensitive to

electrostatic discharge .................................... 6

Grounding requirements ................................. 6

Safety notices: multilingual translations.......... 7

Laser compliance statement......................... 14

Important service information ................... 16

Strategy for replacing FRUs ......................... 16

Strategy for replacing a hard disk drive ............ 17

Important notice for replacing a system board ...17

Important information about replacing RoHS

compliant FRUs ............................................ 18

General checkout ...................................... 19

What to do rst ............................................. 20

Power system checkout................................ 21

Checking the AC adapter .................................21

Checking operational charging ......................... 21

Checking the battery pack ............................... 22

Related service information ...................... 23

Restoring the factory contents by using

OneKey Recovery ........................................ 23

Restore of factory default .................................23

Using recovery discs.........................................23

Passwords .................................................... 24

Power-on password ..........................................24

Supervisor password ....................................... 24

Power management ..................................... 25

Screen blank mode ........................................... 25

Sleep (standby) mode ......................................25

Hibernation mode .............................................26

1070 Fan assembly and Heat Sink assembly ... 41

1080 CPU ......................................................... 44

1090 PCI Express Mini Card slot cover ............45

1100 PCI Express Mini Card for wireless

LAN/WAN .........................................................46

1110 Keyboard ..................................................48

1120 Keyboard bezel ........................................ 50

1130 Speakers, power board and touch

inductive panel .................................................. 53

1140

System board and ExpressCard slot

assembly ............................................................ 55

1150 LCD unit ................................................... 59

1160 Bluetooth daughter card and base cover ....62

1170 LCD front bezel ........................................ 66

1180 LCD panel and hinges ............................. 67

1190 Integrated camera ....................................69

1200 Antenna assembly and LCD cover ......... 70

Locations ...................................................... 71

Front view ......................................................... 71

Right-side view .................................................72

Bottom and Left-side view ...............................72

Parts list ........................................................ 73

Overall ..............................................................74

LCD FRUs ........................................................78

Keyboard ..........................................................80

Miscellaneous parts ..........................................82

AC adapters ...................................................... 83

Power cords ...................................................... 84

Notices......................................................... 86

Trademarks .................................................. 87

Lenovo G460 ............................................... 27

Specications ............................................... 27

Status indicators ........................................... 29

Fn key combinations..................................... 31

FRU replacement notices ............................. 32

Screw notices ..................................................32

Removing and replacing an FRU ................. 33

1010 Battery pack ............................................. 34

1020 Dummy cards...........................................35

1030 Hard disk drive (HDD)/Memory/CPU (Central processing unit) compartment cover ... 36

1040 Hard disk drive ........................................ 37

1050 Optical drive ............................................. 39

1060 DIMM ....................................................... 40

About this manual

This manual contains service and reference informat ion for the following Lenovo product:

Lenovo G460

Use this manual to troubleshoot problems. The manual is divided into the following sections:

The common sections provide general information, guidelines, and safety • information required for servicing computers.

The product-specic section includes service, reference, and product-specic • parts information.

Important:

This manual is intended only for trained servicers who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively.

Before servicing a Lenovo product, make sure to read all the information under “Safety information” on page 1 and “Important service information” on page 16.

Safety information

This chapter presents the following safety information that you need to get

familiar with before you service a Lenovo G460 computer:

• “General safety” on page 2.

• “Electrical safety” on page 3

• “Safety inspection guide” on page 5

• “Handling devices that are sensitive to electrostatic discharge” on page 6

• “Grounding requirements” on page 6

• “Safety notices: multilingual translations” on page 7

• “Laser compliance statement” on page 14

Safety information

Lenovo G460 Hardware Maintenance Manual

General safety

Follow these rules below to ensure general safety:

Observe a good housekeeping in the area where the machines are put • during and after the maintenance.

When lifting any heavy object: •

1. Make sure that you can stand safely without slipping.

2. Distribute the weight of the object equally between your feet.

3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift it.

4. Lift it by standing or pushing up with your leg muscles; this action could avoid the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you.

Do not perform any action that causes hazards to the customer, or that • makes the machine unsafe.

Before you start the machine, make sure that other service representatives • and the customer are not in a hazardous position.

Place removed covers and other parts in a safe place, keeping them away • from all personnel, while you are servicing the machine.

Keep your toolcase away from walk areas so that other people will not trip it • over.

Do not wear loose clothing that can be trapped in the moving parts of the • machine. Make sure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.

Insert the ends of your necktie or scarf inside clothing or fasten it with the • nonconductive clip, about 8 centimeters (3 inches) from the end.

Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for • your clothing.

Attention: Metal objects are good electrical conductors.

Wear safety glasses when you are hammering, drilling, soldering, cutting • wire, attaching springs, using solvents, or working in any other conditions that may be hazardous to your eyes.

After service, reinstall all safety shields, guards, labels, and ground wires. • Replace any safety device that is worn or defective.

Reinstall all covers correctly before returning the machine to the customer.• Fan louvers on the machine help to prevent the overheating of internal •

components. Do not obstruct fan lou vers or cover them with labels or stickers.

Safety information

Electrical safety

Observe the following rules when working on electrical equipments.

Important:

Use only approved tools and test equipments. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.

Many customers have rubber floor mats near their machines that contain small

conductive bers to decrease electrostatic discharges. Do not use such kind of mat

to protect yourself from electrical shock.

Find the room emergency power-off (EPO) switch, disconnecting the switch • or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.

Do not work alone under hazardous conditions or near the equipment that • has hazardous voltages.

Disconnect all power before:•

Before you start to work on the machine, unplug the power cord. If you • cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position.

If you need to work o n a machine that has exposed elec trical circuits, • observe the following precautions:

Observe the special safety precautions when you work with very high voltages;

instructions for these precautions are in the safety sections of maintenance

information. Be extremely careful when you measure the high voltages.

Regularly inspect and maintain your electrical hand tools for safe operational • condition.

Do not use worn or broken tools and testers.• Never assume that power has been disconnected from a circuit. First, check •

it to make sure that it has been powered off.

– Performing a mechanical inspection

– Working near power supplies – Removing or installing main units

– Ensure that another person, familiar with the power-off controls, is near

you.

Attention: Another person must be there to switch off the power, if

necessary.

– Use only one hand when working with powered-on electrical equipment;

keep the other hand in your pocket or behind your back.

Attention: An electrical shock can occur only when there is a complete

circuit. By observing the above rule, you may prevent a current from passing through your body.

– When using testers, set the controls correctly and use the approved

probe leads and accessories for that tester.

– Stand on suitable rubber mats (obtained locally, if necessary) to insulate

you from grounds such as metal oor strips and machine frames.

Lenovo G460 Hardware Maintenance Manual

Always look carefully for possible hazards in your work area. Examples of • these hazards are moist oors, nongrounded power extension cables, power surges, and missing safety grounds.

Do not touch live electrical circuits with the reflective surface of a plastic • dental mirror. The surface is conductive; such touching can cause personal injury and machine damage.

Do not service the following parts with the power on when they are removed • from their normal operating places in a machine:

– Power supply units – Pumps

– Blowers and fans

– Motor generators

and similar units. (This practice ensures correct grounding of the units.)

If an electrical accident occurs:•

– Caution: do not become a victim yourself. – Switch off the power. – Send the victim to get medical aid.

Safety information

Safety inspection guide

The purpose of this inspection guide is to assist you in identifying potential

unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service personnel from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards according to the attachment of non-Lenovo features or options not covered by this inspection guide.

If any unsafe conditions are present, you must determine how serious the

apparent hazard could be and whether you can continue without rst correcting the problem.

Consider these conditions and the safety hazards they present:

Electrical hazards, especially primary power (primary voltage on the frame • can cause serious or fatal electrical shock)

Explosive hazards, such as a damaged CRT face or a bulging capacitor• Mechanical hazards, such as loose or missing hardware•

To d etermine whethe r there are any potentia l unsafe conditio ns, use the

following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected.

Checklist:

1. Check exterior covers for damage (loose, broken, or sharp edges).

2. Turn off the computer. Disconnect the power cord.

3. Check the power cord for: a. A third-wire ground connector in good condition. Use a meter to measure

third-wire ground continuity for 0.1 ohm or less between the external

ground pin and the frame ground. b. The power cord should be the type specied in the parts list. c. Insulation must not be frayed or worn.

4. Check for cracked or bulging batteries.

5. Remove the cover.

6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo alterations.

7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.

8. Check for worn, frayed, or pinched cables.

9. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.

Lenovo G460 Hardware Maintenance Manual

Handling devices that are sensitive to electrostatic discharge

Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.

Notes:

1. Use product-specific ESD procedures when they exceed the requirements

noted here.

2. Make sure that the ESD protective devices you use have been certied (ISO

9000) as fully effective.

When handling ESD-sensitive parts:

Keep the parts in protective packages until they are inserted into the product. • Avoid contact with other people.• Wear a grounded wrist strap against your skin to eliminate static on your •

body. Prevent the part from touching your clothing. Most clothing is insulative and •

retains a charge even when you are wearing a wrist strap. Use the black side of a grounded work mat to provide a static-free work •

surface. The mat is especially useful when handling ESD-sensitive devices. Select a grounding system, such as those listed below, to provide protection •

that meets the specic service requirement.

Note:

The use of a grounding system to guard against ESD damage is desirable but not

necessary.

– Attach the ESD ground clip to any frame ground, ground braid, or green-

wire ground.

– When working on a double-insulated or battery-operated system, use an

ESD common ground or reference point. You can use coax or connectoroutside shells on these systems.

– Use the round ground prong of the ac plug on ac-operated computers.

Grounding requirements

Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be veried by a certied electrician.

Safety information

Safety notices: multilingual translations

The safety notices in this section are provided in English, French, German, Hebrew, Italian, Japanese, and Spanish.

Safety notice 1

Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds.

Metallic parts or metal akes can cause electrical shorts.

Avant de remettre l’ordinateur sous tension après remplacement d’une unité en

clientèle, vériez que tous les ressorts, vis et autres pièces sont bien en place et bien xées. Pour ce faire, secouez l’unité et assurez-vous qu’aucun bruit suspect ne se produit. Des pièces métalliques ou des copeaux de métal pourraient causer

un court-circuit.

Bevor nach einem FRU-Austausch der Computer wieder angeschlossen wird, muß sichergestellt werden, daß keine Schrauben, Federn oder andere Kleinteile

fehlen oder im Gehäuse vergessen wurden. Der Computer muß geschüttelt und auf Klappergeräusche geprüft werden. Metallteile oder-splitter können Kurzschlüsse erzeugen.

Prima di accendere l’elaboratore dopo che é stata effettuata la sostituzione di una

FRU, accertarsi che tutte le viti, le molle e tutte le altri parti di piccole dimensioni

siano nella corretta posizione e non siano sparse all’interno dell’elaboratore. Vericare ciò scuotendo l’elaboratore e prestando attenzione ad eventuali rumori; eventuali parti o pezzetti metallici possono provocare cortocircuiti pericolosi.

Antes de encender el sistema despues de sustituir una FRU, compruebe que

todos los tornillos, muelles y demás piezas pequeñas se encuentran en su sitio

y no se encuentran sueltas dentro del sistema. Compruébelo agitando el sistema

y escuchando los posibles ruidos que provocarían. Las piezas metálicas pueden

causar cortocircuitos eléctricos.

Lenovo G460 Hardware Maintenance Manual

Safety notice 2

DANGER

Some standby batteries contain a small amount of nickel and cadmium. Do not

disassemble a standby battery, recharge it, throw it into fire or water, or short-

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

Use only the battery in the appropriate parts listing. Use of an incorrect battery can

result in ignition or explosion of the battery.

Certaines batteries de secours contiennent du nickel et du cadmium. Ne les

démontez pas, ne les rechargez pas, ne les exposez ni au feu ni à l’eau. Ne les mettez pas en court-circuit. Pour les mettre au rebut, conformez-vous à la réglementation en vigueur. Lorsque vous remplacez la pile de sauvegarde ou celle de l’horloge temps réel, veillez à n’utiliser que les modèles cités dans la liste de

pièces détachées adéquate. Une batterie ou une pile inappropriée risque de prendre

feu ou d’exploser. Die Bereitschaftsbatterie, die sich unter dem Diskettenlaufwerk befindet,

kann geringe Mengen Nickel und Cadmium enthalten. Sie darf nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Bereitschafts-oder Systembatterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen.

Alcune batterie di riserva contengono una piccola quantità di nichel e cadmio.

Non smontarle, ricaricarle, gettarle nel fuoco o nell’acqua né cortocircuitarle.

Smaltirle secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria dell’RTC (real time clock) o la batteria di supporto, utilizzare soltanto i tipi inseriti nell’appropriato Catalogo

parti. L’impiego di una batteria non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa.

Algunas baterías de reserva contienen una pequeña cantidad de níquel y cadmio.

No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite.

Deséchelas tal como dispone la normativa local. Utilice sólo baterías que se encuentren en la lista de piezas. La utilización de una batería no apropiada puede provocar la ignición o explosión de la misma.

Safety information

Safety notice 3

DANGER

The battery pack contains small amounts of nickel. Do not disassemble it, throw it into re or water, or short-circuit it. Dispose of the battery pack as required by

local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition

or explosion of the battery. La batterie contient du nickel. Ne la démontez pas, ne l’exposez ni au feu ni à l’eau.

Ne la mettez pas en court-circuit. Pour la mettre au rebut, conformez-vous à la réglementation en vigueur. Lorsque vous remplacez la batterie, veillez à n’utiliser

que les modèles cités dans la liste de pièces détachées adéquate. En effet, une

batterie inappropriée risque de prendre feu ou d’exploser. Akkus enthalten geringe Mengen von Nickel. Sie dürfen nicht zerlegt,

wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen.

La batteria contiene piccole quantità di nichel. Non smontarla, gettarla nel fuoco o nell’acqua né cortocircuitarla. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria, utilizzare soltanto i tipi inseriti nell’appropriato Catalogo parti. L’impiego

di una batteria non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa.

Las baterías contienen pequeñas cantidades de níquel. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Deséchelas tal como dispone la normativa local. Utilice sólo baterías que se encuentren en la lista de piezas al sustituir la batería. La utilización de una batería no apropiada puede provocar la ignición o explosión de la misma.

Lenovo G460 Hardware Maintenance Manual

Safety notice 4

DANGER

The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as

required by local ordinances or regulations. Use only the battery in the appropriate

parts listing. Use of an incorrect battery can result in ignition or explosion of the

battery.

La pile de sauvegarde contient du lithium. Elle présente des risques d’incendie,

d’explosion ou de brûlures graves. Ne la rechargez pas, ne retirez pas son connecteur polarisé et ne la démontez pas. Ne l’exposez pas à une temperature supérieure à 100°C, ne la faites pas brûler et n’en exposez pas le contenu à l’eau. Mettez la pile au rebut conformément à la réglementation en vigueur. Une pile inappropriée risque de prendre feu ou d’exploser.

Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzünden, explodieren oder schwere Verbrennungen hervorrufen. Batterien dieses Typs dürfen nicht aufgeladen, zerlegt, über 100 C erhitzt oder verbrannt werden. Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte Verbindungsstecker entfernt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen.

La batteria di supporto e una batteria al litio e puo incendiarsi, esplodere o

procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore polarizzato,

smontarla, riscaldarla ad una temperatura superiore ai 100 gradi centigradi,

incendiarla o gettarla in acqua. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). L’impiego di una batteria

non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa.

La batería de repuesto es una batería de litio y puede provocar incendios,

explosiones o quemaduras graves. No la recargue, ni quite el conector polarizado, ni la desmonte, ni caliente por encima de los 100°C (212°F), ni la incinere ni exponga el contenido de sus celdas al agua. Deséchela tal como dispone la

normativa local.

Safety information

Safety notice 5

If the LCD breaks and the uid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water at least for 15 minutes. Seek medical care if any symptoms caused by the uid are present after washing.

Si le panneau d’afchage à cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du uide, rincez-les abondamment pendant au moins quinze minutes. Consultez un médecin si des symptômes persistent après le

lavage.

Die Leuchtstoffröhre im LCD-Bildschirm enthält Quecksilber. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Der LCD-Bildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgemäß behandelt wird oder der Computer auf den Boden fällt. Wenn der Bildschirm beschädigt ist und die darin befindliche Flüssigkeit in Kontakt mit Haut und Augen gerät, sollten die betroffenen Stellen mindestens 15 Minuten mit Wasser abgespült und bei Beschwerden anschließend ein Arzt aufgesucht werden.

Nel caso che caso l’LCD si dovesse rompere ed il liquido in esso contenuto

entrasse in contatto con gli occhi o le mani, lavare immediatamente le parti

interessate con acqua corrente per almeno 15 minuti; poi consultare un medico se i

sintomi dovessero permanere.

Si la LCD se rompe y el uido de su interior entra en contacto con sus ojos o sus manos, lave inmediatamente las áreas afectadas con agua durante 15 minutos como mínimo. Obtenga atención medica si se presenta algún síntoma del uido

despues de lavarse.

Lenovo G460 Hardware Maintenance Manual

Safety notice 6

DANGER

To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card.

An d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique

protégeant la partie inférieure de la carte d’alimentation.

Aus Sicherheitsgründen die Kunststoffabdeckung, die den unteren Teil der

Spannungswandlerplatine umgibt, nicht entfernen.

Per evitare scosse elettriche, non rimuovere la copertura in plastica che avvolge la

parte inferiore della scheda invertitore.

Para evitar descargas, no quite la cubierta de plástico que rodea la parte baja de la tarjeta invertida.

Safety notice 7

DANGER

Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials.

Bien que le voltage des batteries principales soit peu élevé, le court-circuit ou la

mise à la masse d’une batterie peut produire sufsamment de courant pour brûler des matériaux combustibles ou causer des brûlures corporelles graves.

Obwohl Hauptbatterien eine niedrige Spannung haben, können sie doch bei Kurzschluß oder Erdung genug Strom abgeben, um brennbare Materialien zu entzünden oder Verletzungen bei Personen hervorzurufen.

Sebbene le batterie di alimentazione siano a basso voltaggio, una batteria in corto circuito o a massa può fornire corrente sufficiente da bruciare materiali combustibili o provocare ustioni ai tecnici di manutenzione.

Aunque las baterías principales tienen un voltaje bajo, una batería cortocircuitada o con contacto a tierra puede producir la corriente suciente como para quemar

material combustible o provocar quemaduras en el personal.

Safety information

Safety notice 8

DANGER

Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables.

Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d’alimentation des socles de prise de courant, retirez la batterie et déconnectez tous les cordons d’interface.

Die Stromzufuhr muß abgeschaltet, alle Stromkabel aus der Steckdose gezogen,

der Akku entfernt und alle Verbindungskabel abgenommen sein, bevor eine FRU entfernt wird.

Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i cavi

di interconnessione.

Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de

las tomas de corriente eléctrica, quite la batería y, a continuación, desconecte cualquier cable de conexión entre dispositivos.

Lenovo G460 Hardware Maintenance Manual

Laser compliance statement

Some models of Lenovo computer are equipp ed from the factory with an optical storage device such as a CD-ROM drive or a DVD-ROM drive. Such devices are also sold separately as options. If one of these drives is installed, it is certied in the U.S. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Elsewhere, the drive is certified to conform to the requirements of the International Electrotechnical Commission (IEC) 825 and CENELEC EN 60 825 for Class 1 laser products.

If a CD-ROM drive, a DVD-ROM drive, or another laser device is installed, note the following:

CAUTION

Use of controls or adjustments or performance of procedures other than those specied herein might result in hazardous radiation exposure.

O uso de controles, ajustes ou desempenho de procedimentos diferentes daqueles aqui especicados pode resultar em perigosa exposição à radiação.

Pour éviter tout risque d’exposition au rayon laser, respectez les consignes de

réglage et d’utilisation des commandes, ainsi que les procédures décrites.

Werden Steuer- und Einstellelemente anders als hier festgesetzt verwendet, kann

gefährliche Laserstrahlung auftreten.

L’utilizzo di controlli, regolazioni o l’esecuzione di procedure diverse da quelle specicate possono provocare l’esposizione a.

El uso de controles o ajustes o la ejecución de procedimientos distintos de los aquí especicados puede provocar la exposición a radiaciones peligrosas.

Opening the CD-ROM drive, the DVD-ROM drive, or any other optical storage device could result in exposure to hazardous laser radiation. There are no serviceable parts inside those drives. Do not open.

Safety information

A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. Note the following:

DANGER

Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the

beam.

Radiação por raio laser ao abrir. Não olhe fixo no feixe de luz, não olhe diretamente por meio de instrumentos óticos e evite exposição direta com o feixe de luz.

Rayonnement laser si carter ouvert. Évitez de fixer le faisceau, de le regarder directement avec des instruments optiques, ou de vous exposer au rayon.

Laserstrahlung bei geöffnetem Gerät. Nicht direkt oder über optische Instrumente

in den Laserstrahl sehen und den Strahlungsbereich meiden.

Kinyitáskor lézersugár ! Ne nézzen bele se szabad szemmel, se optikai eszközökkel. Kerülje a sugárnyalábbal való érintkezést!

Aprendo l’unità vengono emesse radiazioni laser. Non fissare il fascio, non guardarlo direttamente con strumenti ottici e evitare l’esposizione diretta al fascio.

Radiación láser al abrir. No mire jamente ni examine con instrumental óptico el

haz de luz. Evite la exposición directa al haz.

Lenovo G460 Hardware Maintenance Manual

Important service information

This chapter presents the following important service information:

• “Strategy for replacing FRUs” on page 16

– “Strategy for replacing a hard disk drive” on page 17 – “Important notice for replacing a system board ” on page 17

• “Important information about replacing RoHS compliant FRUs” on page 18

Important:

BIOS and device driver xes are customer-installable. The BIOS and device

drivers are posted on the customer support site: http://consumersupport.lenovo.com/.

Strategy for replacing FRUs

Before replacing parts:

Make sure that all software xes, drivers, and BIOS downloads are installed before replacing any FRUs listed in this manual.

After a system board is replaced, ensure that the latest BIOS is loaded to the system board before completing the service action.

To download software xes, drivers, and BIOS, follow the steps below:

1. Go to http://consumersupport.lenovo.com/.

2. Enter a serial number or select a product or use Lenovo smart downloading.

3. Select the BIOS/Driver/Applications and download.

4. Follow the directions on the screen and install the necessary software.

Important service information

Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs:

If you are instructed to replace an FRU, but the replacement does not solve • the problem, reinstall the original FRU before you continue.

Some computers have both a processor board and a system board. If you •

are instructed to replace either of them, and replacing one of them does not

solve the problem, reinstall that board, and then replace the other one. If an adapter or a device consists of more than one FRU, any of the FRUs •

may be the cause of the error. Before replacing the adapter or device, remove the FRUs one by one to see if the symptoms change. Replace only the FRU that changed the symptoms.

Attention: The setup configuration on the computer you are servicing may

have been customized. Running A utomati c Con figurat ion m ay alter the settings. Note the current conguration settings (using the View Conguration option); then, when service has been completed, verify that those settings remain in effect.

Strategy for replacing a hard disk drive

Always try to run a low-level format before replacing a hard disk drive. This will cause all customer data on the hard disk to be lost. Make sure that the customer has a current backup of the data before performing this action.

Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten.

Important notice for replacing a system board

Some components mounted on a system board are very sensitive. Improper

handling can cause damage to those components, and may cause a system

malfunction. Attention: When handling a system board:

Do not drop the system board or apply any excessive force to it.• Avoid rough handling of any kind.• Avoid bending the system board and hard pushing to prevent cracking at •

each BGA (Ball Grid Array) chipset.

Lenovo G460 Hardware Maintenance Manual

Important information about replacing RoHS compliant FRUs

RoHS, T he Restriction of Hazardous Sub sta nce s in Electrical and Electronic Equipment Directive (2002/95/EC) is a European Union legal requirement affecting the global electronics industry. RoHS requirements must be implemented on Lenovo products placed on the market after June 2006. Products on the market before June 2006 are not required to have RoHS compliant parts. If the original FRU parts are non-compliant, replacement parts can also be non-compliant. In all cases if the original FRU parts are RoHS compliant, the replacement part must also be RoHS compliant.

Note: RoHS and non-RoHS FRU part numbers with the same t and function

are identied with unique FRU part numbers.

Lenovo plans to transit to RoHS compliance well before the implementation date and expects its suppliers to be ready to support Lenovo’s requirements and schedule in the EU. Products sold in 2005 and 2006 will contain some RoHS compliant FRUs. The following statement pertains to these products and any product Lenovo produces containing RoHS compliant FRUs.

RoHS compliant FRUs have unique FRU part numbers. Before or after the RoHS i mplementation date, failed RoHS compliant parts must always be replaced with RoHS compliant ones, so only the FRUs identied as compliant in the system HMM or direct substitutions for those FRUs may be used.

Products marketed before June 2006 Products marketed after June 2006

Current or original part

Non-RoHS Can be Non-RoHS

Non-RoHS Can be RoHS

Non-RoHS Can sub to RoHS

RoHS Must be RoHS

Note: A direct substitution is a part with a different FRU part number that is automatically shipped by the distribution center at the time of the order.

Replacement FRU Current or

original part

Must be RoHS Must be RoHS

Replacement FRU

General checkout

This chapter presents the following information:

• “What to do rst” on page 20

• “Power system checkout” on page 21

Before you go to the checkout, make sure to read the following important notes:

Important notes:

• Onlycertiedtrainedpersonnelcanservicethecomputer.

• Beforereplacingany FRU,read theentire pageonremovingandreplacing FRUs.

• WhenyoureplaceFRUs,usenewnylon-coatedscrews.

• Be extremelycareful duringsuchwrite operationsascopying, saving,or formatting. Drives in the computer that you are servicing sequence might

have been altered. If you select an incorrect drive, data or programs might be overwritten.

• ReplaceanFRUonly with anotherFRUofthecorrect model. When you

replace an FRU, make sure that the machine model and the FRU part number are correct by referring to the FRU parts list.

• An FRU shouldnotbereplacedjustbecause of a single,unreproducible failure.Single failures can occur for a variety of reasons that have nothing to

do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. Consider replacing an FRU only when a problem recurs. If you suspect that an FRU is defective, clear the error logs and run the test again. If the error does not recur, do not replace the FRU.

• BecarefulnottoreplaceanondefectiveFRU.

Lenovo G460 Hardware Maintenance Manual

What to do rst

When you do return an FRU, you must include the following information in the parts exchange form or parts return form that you attach to it:

1. Name and phone number of servicer

2. Date of service

3. Date on which the machine failed

4. Date of purchase

5. Procedure index and page number in which the failing FRU was detected

6. Failing FRU name and part number

7. Machine type, model number, and serial number

8. Customer’s name and address

Note for warranty: Du ring the war ran ty per iod , th e cu stomer may be responsible for repair costs if the computer damage was caused by misuse, acc ident, modification , unsuita ble p hysical o r operati ng envir onment, or

improper maintenance by the customer.

The following is a list of some common items that are not covered under warranty a nd some sympto ms that might i ndi cat e that the system w as

subjected to stress beyond normal use. Before checking problems with the computer, determine whether the damage is

covered under the warranty by referring to the following list:

The following are not covered under warranty:

LCD panel cracked from the application of excessive force or from being • dropped

Scratched (cosmetic) parts• Distortion, deformation, or discoloration of the cosmetic parts• Plastic parts, latches, pins, or connectors that have been cracked or broken •

by excessive force

Damage caused by liquid spilled into the system• Damage caused by the improper insertion of a PC Card or the installation of •

an incompatible card Improper • disc insertion or use of an optical drive

Diskette drive damage caused by pressure on the diskette drive cover, • foreign material in the drive, or the insertion of a diskette with multiple labels

Damaged or bent diskette eject button• Fuses blown by attachment of a nonsupported device• Forgotten computer password (making the computer unusable)• Sticky keys caused by spilling a liquid onto the keyboard• Use of an incorrect AC adapter on laptop products•

The following symptoms might indicate damage caused by nonwarranted activities:

Missing parts might be a symptom of unauthorized service or modication. • If the spindle of a hard disk drive becomes noisy, it may have been subjected •

to excessive force, or dropped.

General checkout

Power system checkout

Voltage (V DC)

+20

To verify a symptom, follow the steps below:

1. Turn off the computer.

2. Remove the battery pack.

3. Connect the AC adapter.

4. Make sure that power is supplied when you turn on the computer.

5. Turn off the computer.

6. Disconnect the AC adapter and install the charged battery pack.

7. Make sure that the battery pack supplies power when you turn on the computer.

If you suspect a power problem, see the appropriate one of the following power

supply checkouts:

• “Checking the AC adapter ” on page 21

• “Checking operational charging” on page 21

• “Checking the battery pack ” on page 22

Checking the AC adapter

You are here because the computer fails only when the AC adapter is used.

If the power-on indicator does not turn on, check the power cord of the AC • adapter for correct continuity and installation.

If the computer does not charge during operation, go to • “Chec king operational charging”.

To check the AC adapter, follow the steps below:

1. Unplug the AC adapter cable from the computer.

2. Measure the output voltage at the plug of the AC adapter cable. See the following gure:

Note: Output voltage for the AC adapter pin No. 2 may differ from the one you are servicing.

3. If the voltage is not correct, replace the AC adapter.

4. If the voltage is acceptable, do the following:

Replace the system board.• If the problem continues, go to • “Lenovo G460” on page 27.

Note: Noise from the AC adapter does not always indicate a defect.

Checking operational charging

To check whe ther the b attery charges properly during operat ion, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

Lenovo G460 Hardware Maintenance Manual

1(+)

2(+)

6(-)

7(-)

Terminal

1 +0 to +14

7 Ground (-)

Voltage (V DC)

Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.

If the charge indicator still does not light on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section.

Checking the battery pack

Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life.

To check your battery, move your cursor to the Power Meter icon in the icon

tray of the Windows® taskbar and wait for a moment (but do not click it), and the

percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon.

Note: If the battery pack becomes hot, it may not be able to be charged. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.

To check the battery pack, follow the steps below:

1. Turn off the computer.

2. Remove the batt ery pack and meas ure the voltage between battery terminals 1 (+) and 7 (-). See the following gure:

3. If the volta ge is les s than +11. 0 V D C, the batte ry pac k ha s been discharged.

Note: Recharging will be continued for at least 3 hours, even though the

indicator does not light on.

If the voltage is still less than +11.0 V DC after recharging, replace the

battery.

4. If the voltage is more than +11.0 V DC, measure the resistance between battery terminals 5 and 7. The resistance must be 4 to 30 KΩ.

If the resistance is not correct, replace the battery pack. If the resistance is

correct, replace the system board.

Related service information

This chapter presents the following information:

• “Restoring the factory contents by using OneKey Recovery” on page 23

• “Passwords” on page 24

• “Power management” on page 25

Restoring the factory contents by using OneKey Recovery

Restore of factory default

The Lenovo G460 computers come with pre-installed OneKey Rescue System. In order to save application les and the initial backed up les of the system, the hard disk in a Lenovo computer includes a hidden partition when it is shipped. If you need to restore the system to the point of your rst boot up, just enter Lenovo OneKey Rescue System and run Restore to factory default. For details of OneKey Rescue System, see

This will delete all the new data on the system partition (C drive), which

Note:

is not recoverable. Make sure to back up your critical data before you perform this action.

Using recovery discs

When you replace a hard discs drive in your computer, you are unable to use

the pre-installed Lenovo OneKey Recovery and OneKey Rescue. However, you can use the recovery discs that store your backed up data to restore your new hard drive to a previous backup status.

the User Guide for OneKey Rescue System

You can create recovery discs by burning the backup image to a CD/DVD

Note:

as recovery discs. For details of Createrecovery discs, see the User Guide for OneKey Rescue System.

Lenovo G460 Hardware Maintenance Manual

When you use the recovery discs to boot your computer, the system will enter

the user interface for system recovery automatically. Please follow the prompt to insert the backup discs to complete the whole recovery process.

The recovery process might take up to 2 hours.

Note:

Passwords

As many as two passwords may be needed for any Lenovo computer: the power-on password (POP) and the supervisor password (SVP).

If any of these passwords has been set, a prompt for it appears on the screen

whenever the computer is turned on. The computer does not start until the password is entered.

Exception: If only an SVP is installed, the password prompt does not appear when the operating system is booted.

Power-on password

A power-on password (POP) protects the system from being powered on by an unauthorized person. The password must be entered before an operating system can be booted.

Supervisor password

A supervisor password (SVP) protects the system information stored in the BIOS Setup Utility. The user must enter the SVP in order to get access to the BIOS Setup Utility and change the system conguration.

Attention: If the SVP has been forgotten and cannot be made available to the servicer, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee.

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