Lenovo U310 User Manual

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Hardware Maintenance Manual

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Note:

Before using this information and the product it supports, be sure to read the general information under “Notices” on page 110.

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. © 2012 Lenovo

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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 first.................................................. 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

Recovery Disc Set..............................................23

Start Recovery Disc (one disc)................... 23

Operating System Recovery Disc (one or

more discs) ................................................... 23

Applications and Drivers Recovery Disc

(one or more discs)...................................... 23

Supplemental Recovery Disc..................... 23

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

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

Hard-disk password................................... 24

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

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

Screen blank state........................................ 25

Sleep (standby) state................................... 25

Hibernation state......................................... 26

Lenovo IdeaPad U310/U410 U310/U410

Touch ........................................................... 27

Specifications ..................................................... 27

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

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

Hotkeys ...............................................................31

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

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

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

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

1020 Dummy card........................................45

1030 Hard disk drive...................................46

1040 DIMM...................................................49

1050 PCI Express Mini Card for wireless

LAN/WAN ..................................................51

1060 Fan assembly and Heat Sink

assembly........................................................54

1070 Keyboard..............................................60

1080 System board.......................................63

1090 LCD unit...............................................67

1100 Base cover, bluetooth card, USB board,

power assembly and power board............70

1110 LCD front bezel...................................75

1120 LCD panel, LCD cable, hinges and

speakers.........................................................76

1130 Integrated camera...............................80

Locations.............................................................81

Front view.....................................................81

Right-side view............................................82

Bottom and Left-side view.........................83

Parts list...............................................................84

Overall...........................................................85

LCD FRUs.....................................................90

Keyboard.......................................................93

AC adapters................................................106

Power cords................................................107

Notices ....................................................... 110

Trademarks.......................................................111

iii

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About this manual

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

Lenovo IdeaPad U310/U410 U310/U410 Touch

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-specific section includes service, reference, and product-specific 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.

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Safety information

This chapter presents the following safety information that you need to get familiar with before you service a Lenovo 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

Lenovo IdeaPad U310/U410 U310/U410 Touch

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Lenovo IdeaPad U310/U410 U310/U410 Touch 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.

• Please remove covers and other parts in a safe place, 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 louvers or cover them with labels or stickers.

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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 fibers 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 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: – Performing a mechanical inspection – Working near power supplies – Removing or installing main units

• 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 on a machine that has exposed electrical circuits, observe the following precautions:

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

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

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

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

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.

Lenovo IdeaPad U310/U410 U310/U410 Touch

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

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.

leads and accessories for that tester.

you from grounds such as metal floor strips and machine frames.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

• Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, 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: – Use caution: do not become a victim yourself. –Switch off the power. – Send the victim to get medical aid.

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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 du e to 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 first 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 determine whether there are any potential unsafe conditions, 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 specified 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 a ny obvious unsafe conditions, such as metal filin gs, 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 IdeaPad U310/U410 U310/U410 Touch

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Lenovo IdeaPad U310/U410 U310/U410 Touch 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 certified (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 specific service requirement.

Notes:

The use of a grounding system to guard against ES D 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 verified by a certified electrician.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

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 flakes can cause electrical shorts.

Avant de remettre l’ord inateur sous tension après remplacement d’u ne unité en clientèle, vérifiez que tous les ressorts, vis et autres pièces sont bien en place et bien fixées. 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 odersplitter 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. Verificare 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.

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Lenovo IdeaPad U310/U410 U310/U410 Touch 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 r éel, 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.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Safety notice 3

DANGER

The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire 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.

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Lenovo IdeaPad U310/U410 U310/U410 Touch 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.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Safety notice 5

If the LCD breaks and the fluid 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 fluid are present after washing.

Si le panneau d’affichage à cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du fluide, 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 fluido 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 fluido despues de lavarse.

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Lenovo IdeaPad U310/U410 U310/U410 Touch 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.

Afin 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 suffisamment 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 suficiente como para quemar material combustible o provocar quemaduras en el personal.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

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 FR U, 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.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Laser compliance statement

Some models of Lenovo computer are equipped 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 certified 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 C ENELEC 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 specified herein might result in hazardous radiation exposure. O uso de controles, ajustes ou desempenho de procedimentos diferentes daqueles aqui especificados 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 specificate possono provocare l’esposizione a.

El uso de controles o ajustes o la ejecución de procedimientos distintos de los aquí especificados 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.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

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 fijamente ni examine con instrumental óptico el haz de luz. Evite la exposición directa al haz.

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Lenovo IdeaPad U310/U410 U310/U410 Touch 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 fixes 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 fixes, 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 fixes, drivers, and BIOS, follow the steps below:

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

2. Enter the 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.

Page 21

Lenovo IdeaPad U310/U410 U310/U410 Touch

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 Automatic Configuration may alter the settings. No te the current configuration settings (using the View Configuration 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 cop ying, sa ving, or formatt ing. I f you select a n incorr ect dr ive, data or p rogra ms 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.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Important information about replacing RoHS compliant FRUs

RoHS, The Restriction of Hazardous Substances 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 number s with the same fit and fu nction are

identified with unique FRU part numbers.

Lenovo plans to tr ansit to RoHS compliance well b efore 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.

RoH S complian t FRUs have unique FRU part numbers. B efore or afte r the R oHS implementation date, faile d RoHS compliant parts must always be repla ced with RoHS compliant ones, so only the FRUs identified 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

Page 23

General checkout

This chapter presents the following information:

• “What to do first” 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 certified 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 n othing t o do with a hard ware d efect , such as co smic radia tion, 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 IdeaPad U310/U410 U310/U410 Touch

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

What to do first

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: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer.

The following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was 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 disk 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 modification.

• If the spindle of a hard disk drive becomes noisy, it may have been subjected to excessive force, or dropped.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Power system checkout

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 “Checking 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 figure:

Voltage (V DC)

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 persists, go to “Lenovo IdeaPad U310/U410 U310/U410 Touch” on page 27.

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

+20

Checking operational charging

To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

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 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.

taskbar and wait for a moment (but do not click it), and the

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Related service information

This chapter presents the following information:

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

•“Passwords” on page24

• “Power management” on page 25

Restoring the factory contents by using Recovery Disc Set

When the hard disk drive or solid state drive is replaced because of a failure, no product recovery program is on the new drive. In this case, you must use the Recovery Disc Set for the computer. Order the Recovery Disc Set and the drive at the same time so that you can recover the new drive with the pre-installed software when they arrive.

The Recovery Disc Set consists of the following set of DVDs to restore the computer to the original factory configuration.

Start Recovery Disc (one disc)

This disc is used to format the hard disk drive and initiate the recovery process.

Operating System Recovery Disc (one or more discs)

This disc restores the Microsoft Windows operating system.

Applications and Drivers Recovery Disc (one or more discs)

This disc restores the pre-installed applications and drivers on the computer.

Supplemental Recovery Disc

This disc contains additional content, such as software for specific models and updates to the software that was preloaded on the computer. Not all recovery disc sets come with a Supplemental Recovery Disc.

To restore the computer to the original factory configuration using the recovery disc set, do the following:

1. Insert the bootable Start Recovery Disc into the optical drive.

2. Start the computer. When the Lenovo logo comes up, immediately press F12;

on the boot sequence menu, select the optical drive as the first boot-up device. The computer will boot from the Start Recovery Disc. Follow the on-screen instructions to begin the recovery process.

3. Read the license. If you agree with the terms, select I accept these terms and

conditions and then click Next.

4. Insert the Operating System Recovery Disc when prompted and click Yes to

begin the operating system recovery process.

5. Insert the Applications and Drivers Recovery Disc when prompted and then

click OK to begin the applications and drivers recovery process.

6. If you have a Supplemental Recovery Disc, insert it when prompted and click

Yes. If you do not have a Supplemental Recovery Disc, click No.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

7. When all of the data has been copied from the last disc in the set, remove the

disc and restart the computer.

Note: The remainder of the recovery process is fully automated and no action is required by you. The computer will restart into the Windows desktop several times and you might experience periods when no activity is apparent on the screen for several minutes at a time. This is normal.

8. When the recovery process is complete, the Welcome to the Microsoft

Windows screen is displayed. Follow the instructions on the screen to complete the Windows setup.

Passwords

As many as three passwords may be needed for any Lenovo computer: the power-on password (POP), the hard disk password (HDP), 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.

Hard-disk password

There are two hard-disk passwords (HDPs): + User HDP - for the user + Master HDP - for the system administrator, who can use it to get access to the

hard disk drive even if the user has changed the user HDP Attention: If the user HDP has been forgotten, check whether a master HDP has

been set. If it has, it can be used for access to the hard disk drive. If no master HDP is available, neither Lenovo nor Lenovo authorized service technicians provide any services to reset either the user or the master HDP, or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.

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 configuration.

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.

Page 29

Power management

Note: Power management modes are not supported for APM operating system.

To reduce power consumption, the computer has three power management modes: screen blank, sleep (standby), and hibernation.

Screen blank state

If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off. You can also turn off the LCD backlight by pressing

To end screen blank state and resume normal operation, press .

Sleep (standby) state

When the computer enters sleep (standby) state, the following events occur in addition to what occurs in screen blank state:

• The LCD is powered off.

• The hard disk drive is powered off.

•The CPU stops.

Putting your computer into sleep state

Lenovo IdeaPad U310/U410 U310/U410 Touch

If you will be away from your computer for only a short time, put the computer into sleep state.

When the computer is in sleep state, you can quickly wake it to resume use, and bypass the startup process.

To put the computer into sleep state, click and select Sleep from the Start menu.

To wake the computer, do one of the following.

• Press the power button.

• Press any key on the keyboard.

Also, in the following event, the computer automatically returns from sleep (standby) state and resumes the operation:

• The time set on the resume timer elapses.

Note: The computer does not accept any input immediately after it enters sleep (standby) state. Wait a few seconds before taking any action to reenter operation mode.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Hibernation state

In hibernation state, the following occurs:

• The system status, RAM, VRAM, and setup data are stored on the hard disk.

• The system is powered off.

To cause the computer to enter hibernation state, follow the steps below:

• If you are using the ACPI operating system and have defined one of the following actions as the event that causes the system to go into hibernation state, perform that action:

–Closing the lid. – Pressing the power button.

Also, the computer goes into hibernation state automatically in either of the following conditions:

• If a “hibernation time” has been set on the timer, and if the user does not do any operation with the keyboard, the hard disk drive, the parallel connector, or the diskette drive within that time.

• If the timer conditions are satisfied in suspend mode.

When the power is turned on, the computer returns from hibernation state and resumes operation. The hibernation file in the boot record on the hard disk drive is read, and system status is restored from the hard disk drive.

Note: When the SSD and HDD are being configured, the computer will enter hibernation state automatically.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

This chapter presents the following product-specific service references and product-specific parts information:

• “Specifications” on page 27

• “Status indicators” on page 29

• “FRU tests” on page 31

• “Fn key combinations” on page 31

• “FRU replacement notices” on page 32

• “Removing and replacing an FRU” on page 33

•“Locations” on page81

• “Parts list” on page 84

Specifications

The following table lists the specifications of the Lenovo IdeaPad U310/U410 U310/U410 Touch:

Table 1. Specifications

Lenovo IdeaPad U310/ U310 Touch

Feature Description

Processor See the system properties of your computer.

You can do this as follows: Click Start, right-click Computer;

then from the pull down menu select Properties. Core Chipset Intel Panther point HM77 Bus architecture FSB: 1333 (Sandy Bridge) & 1600 (IVY bridge)

SDRAM: 1333 (Sandy Bridge) & 1600 (IVY bridge)

PCI bus

PCI express bus

DMI Graphic Chipset Intel Integrated N13M-GE1, 15W Display 16:9 (1,366 × 768 pixels) Standard

memory

CMOS RAM 256 bytes Hard disk drive 2.5-inch, 7.0 mm 2.5-inch, 9.5 mm or 2.5-inch,

Optical drive NA SSD 16G, 32G mSATA

DDR3-1333 or DDR3-1600

4 GB

SODIMM × 1

Lenovo IdeaPad U410/ U410 Touch

DDR3-1333 or DDR3-1600 8 GB SODIMM × 2

7.0 mm

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Table 1. Specifications (continued)

Lenovo IdeaPad U310/

U310 Touch

Feature Description

I/O ports HDMI port × 1

USB 2.0 × 1, USB 3.0 × 2 USB 2.0 × 2, USB 3.0 × 2

2 in 1 slot × 1 (MMC, SD)

Audio Combo audio jack × 1

Built-in microphone Video HDMI port × 1 WLAN Intel Wifi 2 × 2 GN WWAN Intel WiMAX/Wifi 1 × 2 BGN Bluetooth Option Keyboard New Key Board Touch pad One piece TouchPad Integrated

camera Battery Li-Polymer AC adapter 40 W or 65 W 65 W or 90 W Pre-installed

operating system

0.3 or 1.0 mega pixels

Lenovo IdeaPad U410/ U410 Touch

Speaker × 2

Win7, Win8

Page 33

Status indicators

The system status indicators below show the computer status:

Lenovo IdeaPad U310/U410 U310/U410 Touch

a b

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Table 2. Status indicators

Indicator Meaning

Power on On (solid white):

Battery On (solid white):

The computer is powered on.

Blinking:

The computer is in sleep mode.

off: The computer is powered off.

The battery has more than 20% charge.

Solid amber:

The battery has between 5% and 20% charge.

Fast blinking amber:

The battery has less than 5% charge.

Slow blinking amber:

The battery is being charged. When battery charge reaches 20%, the blinking color changes to white.

Slow blinking white:

The battery has between 20% and 80% charge and is still charging. When the battery reaches 80% charge the light will stop blinking, but charging will continue until the battery is fully charged.

Off: The battery is detached.

Page 35

Fn key combinations

The following table shows the function of each combination of Fn w ith a function key.

Table 3. Fn key combinations

Key combination Description

Fn + Home: Activate the pause function. Fn + End: Activate the break function. Fn + PgUp: Enable/Disable the scroll lock. Fn + PgDn: Activate the insert function.

Hotkeys

The hotkeys are located in the function key row of the keyboard. By pressing the appropriate hotkey, you can change system settings instantly.

The following describes the function of each hotkey.

Table 4. Hotkeys

Hotkeys Description

: Mute/Unmute.

: Decrease sound volume.

Lenovo IdeaPad U310/U410 U310/U410 Touch

: Increase sound volume.

: Close active window or program.

: Refresh desktop or Web pages.

: Enable/Disable the touchpad.

: Enable/Disable the built-in microphone.

: Turn on/off the integrated camera.

: Open the interface for changing display devices.

: Decrease display brightness.

: Increase display brightness.

Open the interface for integrated wireless devices settings (on/off).

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

FRU replacement notices

This section presents notices related to removing and replacing parts. Read this section carefully before replacing any FRU.

Screw notices

Loose screws can cause a reliability problem. In the Lenovo computer, this problem is addressed with special nylon-coated screws that have the following characteristics:

• They maintain tight connections.

• They do not easily come loose, even with shock or vibration.

• They are harder to tighten.

• Each one should be used only once.

Do the following when you service this machine:

• Keep the screw kit in your tool bag.

• Always use new screws.

• Use a torque screwdriver if you have one.

Tighten screws as follows:

• Plastic to plastic

Turn an additional 90° after the screw head touches the surface of the plastic part:

more than 90°

(Cross-section)

• Logic card to plastic

Turn an additional 180° after the screw head touches the surface of the logic card:

more than 180°

(Cross-section)

• Torque driver

If you have a torque screwdriver , refer to the “Torque” column for each step.

• Make sure that you use the correct screws. If you have a torque screwdriver, tighten all screws firmly to the torque shown in the table. Never use a screw

that you removed. Use a new one. Make sure that all screws are tightened firmly.

• Ensure torque screwdrivers are calibrated correctly following country specifications.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Removing and replacing an FRU

This section presents exploded figures with the instructions to indicate how to remove and replace the FRU. Make sure to observe the following general rules:

1. Do not attempt to service any computer unless you have been trained and

certified. An untrained person runs the risk of damaging parts.

2. Before replacing any FRU, review “FRU replacement notices” on page 32.

3. Begin by removing any FRUs that have to be removed before the failing FRU.

Any of such FRUs are listed at the top of the page. Remove them in the order in which they are listed.

4. Follow the correct sequence in the steps to remove the FRU, as given in the

figures by the numbers in square callouts.

5. When turning a screw to replace an FRU, turn it in the direction as given by

the arrow in the figure.

6. When removing the FRU, move it in the direction as given by the arrow in the

figure.

7. To put the new FRU in place, reverse the removal procedures and follow any

of the notes that pertain to replacement. For information about connecting and arranging internal cables, see “Locations” on page 81.

8. When replacing an FRU, use the correct screw as shown in the procedures.

DANGER

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

Attention: After replacing an FRU, do not turn on the computer until you have made sure that all screws, springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.

Attention: The system board is sensitiv e to, and can be damaged by, elec trostatic discharge. Before touching it, establish personal grounding by touching a ground point with one hand or using an electrostatic discharge (ESD) strap (P/N 6405959) to remove potential shock reasons.

Note: The illustrations used in this section are of the Lenovo U410/U410 Touch, unless otherwise stated.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

1010 Battery pack

DANGER

•Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode.

• Make sure the battery has been disconnected already before replacing any devices.

Figure 1. Removal steps of battery pack

U310/U310 Touch: Open four rubber foot pads with a screw driver in the direction shown by arrows , then remove four screws .

Step Screw (quantity) Color Torque

U410/U410 Touch: Open three rubber foot pads with a screw driver in the direction shown by arrows , then remove three screws .

Step Screw (quantity) Color Torque

2.5 × 6.8 mm, flat-head, nylok-coated (4) Black 3.0 kgfcm

M2.5 × 8.0 mm, flat-head, nylok-coated (3)

Black 3.0 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 1. Removal steps of battery pack (continued)

Open the back cover along the device frame with a flat blade in the direction shown by arrows and then lift the back cover in the direction shown by arrow

U310/U310 Touch

After removing the bottom cover, turn over the console and lay it flat on the work space. As shown in the illustration below, absorbers (Part No. XXXXXX) will be attached onto three red areas: A, B and C.

Use the corresponding size of absorber, and apply it to the machine from the blue baselines pointed to by the blue arrow in the illustration below. When the starting positions are fixed, press the absorber to make it flat. Affix them in the areas of A, B and C in order.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 1. Removal steps of battery pack (continued)

Area A: Take a rectangular absorber (48mm wide x 50mm high), and apply it to the machine from the blue baselines pointed to by the blue arrow in the illustration below. When the starting positions are fixed, press the absorber to make it flat.

The illustration below is the design sketch of Area A.

Area B: Take a nearly-rectangular absorber (70mm wide x 93mm high), and apply it to the machine from the blue baselines pointed to by the blue arrow in the illustration below. When the starting positions are fixed, press the absorber to make it flat.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 1. Removal steps of battery pack (continued)

The illustration below is the design sketch of Area B.

Note:

1. The yellow rectangles 1 and 2 below show rubber protrusions. Absorber should not cover these.

2. Arched line 3, absorber should be cut along the arched line, against the black mylar alignment. It must not overlap, so it does not interfere with fan.

Area C: Take a stepped-shaped absorber (100mm wide x 32mm high), and apply it to the machine from the blue baselines (either arrow 1 or arrow 2) pointed to by the blue arrow in the illustration below. When the starting positions are fixed, press the absorber to make it flat.

Area B

The illustration below is the design sketch of Area C. Note: If attaching starting f rom blue arrow 1, take care that the ab sorber does not

overlap in the area indicated by the red oval. Take care that t he absorber does not extend past the area indicated by the yellow line below, otherwise it will interfere with the fan.

Area B

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 1. Removal steps of battery pack (continued)

After affixing the absorbers, use the illustration below to check to ensure that all absorbers are in the right locations. Then press the absorbers, until they are flat and there are no bubbles, no curled edges.

After affixing absorbers and changing Wireless LAN card, re-assemble the device. First connect the battery interface. Then replace the bottom cover over the absorber materials, reassembling with care.

Note:

1. Connect antenna to the wireless network card correctly: port M should be connected to the black antenna, and port A should be connected to the white antenna.

2. The assembling process requires gentle handling to avoid bottom cover deformation.

If the network card has been replaced, when you’ve finished the assembling, log into the operating system and remove the old wireless network card driver and bluetooth driver from the Control Panel manually. Then reinstall the wireless network card and bluetooth driver.

Note: The old bluetooth driver has to be removed manually before installing a new one. Otherwise, the bluetooth driver may not function.

When the steps above have been completed, follow the normal procedures to test the machine.

U410/U410 Touch

After removing the bottom cover, turn over the console and lay it flat on the work space. As shown in the illustration below, absorbers (Part No. XXXXXX) will be attached onto four red areas: A, B , C and D. Apply black Mylar (Part No.YYYYYY ) to the yellow area in Area C.

Use the corresponding size of absorber, and apply it to the machine from the blue baselines pointed to by the blue arrows in the illustration below. When the starting positions are fixed, press the absorber to make it flat. Affix them in the areas of A, B , C and D in order.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 1. Removal steps of battery pack (continued)

Area A: Take a nearly-square absorber (130mm wide x 110mm high), and apply it to the machine from the top and right blue baselines pointed to by the blue arrows in the illustration below. When the starting positions are fixed, press the absorber to make it flat.

The illustration below is the design sketch of Area A.

1: Using the top edge as the baseline, apply the absorber from top to bottom. Assembly tolerance is 0-2mm.

2: Using the right edge as the baseline, apply the absorber from right to left. Assembly tolerance is 0-2mm.

Area B: Take a rectangular absorber (148mm wide x 14mm high), and apply it to the machine from the blue baselines (the one on the right is immediately next to the absorber of Area A) pointed to by the blue arrows in the illustration below. When the starting positions are fixed, press the absorber to make it flat.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 1. Removal steps of battery pack (continued)

The illustration below is the design sketch of Area B.

Area C: Take a rectangular absorber (50mm wide x 45mm high) and a black Mylar (50mm wide x 20mm high - the height may vary), and adhere them to each other as follows.

Note: The adhesive sides of the black Mylar and the absorber should face the same direction.

adhesive side

Area C: Take the treated absorber as shown in the illustration above, and apply it to the machine from the blue baselines pointed to by the blue arrows in the illustration below. When the starting positions are fixed, press the absorber to make it flat.

Note: The yellow area in this illustration corresponds to the location of the black Mylar on the absorber.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 1. Removal steps of battery pack (continued)

Area C: The illustration below shows the actual procedure. The absorber can be aligned with the right edge of the plastic rectangular frame indicated by the blue baseline. Then use your fingers on your left hand or a jig to relocate at the ventilation aperture, i.e. move the absorber down, and align it with the blue baseline of the absorber of Area B.

Area C: Move the absorber down to the blue baseline on the bottom edge of Area B, then apply it to the machine.

Note: The yellow area in this illustration corresponds to the location of the black Mylar, which is on the other side of the absorber.

The illustration below is the design sketch of Area C.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 1. Removal steps of battery pack (continued)

Area D: Take a rectangular absorber (18mm wide x 35mm high), and apply it to the machine from the blue baselines pointed to by the blue arrow in the illustration below. When the starting positions are fixed, press the absorber to make it flat.

Note: Align its top edge with the bottom edge of the white laser area on the bottom cover; Align its left edge with the edge of the black plastic casing.

The illustration below is the design sketch of Area D;

When the above steps are completed, use the illustration below to check to ensure that all absorbers are in the right locations. Then press the absorbers, until they are flat and there are no bubbles, no curled edges.

This is the end of the process of applying absorbers to the bottom cover. Next, apply Cu foils to the upper cover.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 1. Removal steps of battery pack (continued)

U310/U310 Touch: Unplug the battery connector in the direction shown by arrow first, then remove five screws .

Step Screw (quantity) Color Torque

U410/U410 Touch: Unplug the battery connector in the direction shown by arrow first, then remove three screws .

M2.5 × 3.5 mm, flat-head, n ylok-coated (5)

Silver 2.0 kgfcm

Step Screw (quantity) Color Torque

M2.0 × 3.0 mm, flat-head, nylokcoated (3)

Black 2.0 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 1. Removal steps of battery pack (continued)

Remove the battery in the direction shown by arrow .

When installing:

• Separate the antenna from other cables. Put them in different tracks to improve signal reception.

• Make sure to affix the adhesive tape on the battery.

• Connect the battery last.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

1020 Dummy card

Figure 2. Removal steps of dummy card

Remove the dummy card in the direction shown by arrows .

U310/U310 Touch:

U410/U410 Touch:

a b

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware

Maintenance Manual

1030 Hard disk drive

For access, remove this FRU:

• “1010 Battery pack” on page 34

Attention:

• Do not drop the hard disk drive or apply any physical shock to it. The hard disk drive is sensitive to physical shock. Improper handling can cause damages and permanent loss of data.

• Before removing the drive, suggest the customer to backup all the information on it if possible.

• Never remove the drive while the system is operating or is in suspend mode.

Figure 3. Removal steps of hard disk drive

U310/U310 Touch: Remove the frame fixing screws . Pull the tab in the direction shown by arrow .

Step Screw (quantity) Color Torque

M2.5 × 3.5 mm, flat-head, nylok-coated (4)

Silver 2.5 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 3. Removal steps of hard disk drive (continued)

U410/U410 Touch: Remove the frame fixing screws . Pull the tab to disconnect the connector .

Step Screw (quantity) Color Torque

U310/U310 Touch: Hold the SATA receptacle connector with one hand and pull the hard disk drive (secured in the metal frame) in the direction shown below to detach the connector.

M2.5 × 4.0 mm, flat-head, nylok-coated (3)

Silver 2.5 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware

Maintenance Manual

Figure 3. Removal steps of hard disk drive (continued)

U410/U410 Touch: Hold the SATA receptacle connector with one hand and pull the hard disk drive (secured in the metal frame) in the direction shown below to detach the connector.

Remove four screws and detach the metal frame from the hard disk drive.

Step Screw (quantity) Color Torque

When installing: Make sure that the HDD connector is attached firmly.

M3.0 × 3.0 mm, flat-head, nylok-coated (4)

Silver 3.0 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch

1040 DIMM

For access, remove this FRU:

• “1010 Battery pack” on page 34

Figure 4. Removal steps of DIMM

Release the two latches on both edges of the socket at the same time in the direction shown by arrows , and then unplug the DIMM in the direction shown by arrow .

U310/U310 Touch:

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 4. Removal steps of DIMM (continued)

U410/U410 Touch:

When installing: Insert the notched end of the DIMM into the socket. Push the DIMM firmly, and pivot it until it snaps into the place. Make sure that it is firmly fixed in the slot and difficult to be moved.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

1050 PCI Express Mini Card for wireless LAN/WAN

For access, remove this FRU:

• “1010 Battery pack” on page 34

Figure 5. Removal steps of PCI Express Mini Card for wireless LAN/WAN

Disconnect the two wireless LAN cables (black,white) , and then remove the screw .

U310/U310 Touch:

U410/U410 Touch:

In step , unplug the jacks by using the removal tool antenna RF connector

(P/N: 08K7159), or pick up the connectors with your fingers and gently unplug them in the direction shown by arrows.

Notes: wireless LAN card has 2 cables in step . wireless LAN card in some models may have 3 cables in step .

Step Screw (quantity) Color Torque

M2.0 × 3.0 mm, flat-head, n ylok-coated (1) (U310/U310 Touch)

M2.0 × 3.0 mm, flat-head, n ylok-coated (1) (U410/U410 Touch)

Black

2.0 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 5. Removal steps of PCI Express Mini Card for wireless LAN/WAN (continued)

Remove the card in the direction shown by arrow .

U310/U310 Touch:

U410/U410 Touch:

When installing:

• In models with a wireless LAN card that has two antenna connectors, plug the black cable (1st) (MAIN) into the jack labeled 1, and the white cable (2nd) (AUX) into jack labeled 2 on the card.

• In models with a wireless LAN card that has three antenna connectors, plug the black cable (1st) (MAIN) into the jack labeled 1, the grey cable (3rd) into jack labeled 3, and the white cable (2nd) (AUX) into jack labeled 2 on the card.

U310/U310 Touch:

Check whether the machine has a standard wireless network card 20002501. If the answer is “yes”, then apply for a 2000252 4 wireless network card, and replace the card for the customer. After the replacement, follow this guide and apply absorbers to the machine.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 5. Removal steps of PCI Express Mini Card for wireless LAN/WAN (continued)

U410/U410 Touch:

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware

Maintenance Manual

1060 Fan assembly and Heat Sink assembly

For access, remove this FRU:

• “1010 Battery pack” on page 34

Figure 6. Removal steps of fan assembly and heat sink assembly

Unplug the fan connector in the direction shown by arrow .

U310/U310 Touch:

U410/U410 Touch:

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 6. Removal steps of fan assembly and heat sink assembly (continued)

U310/U310 Touch: Remove four screws and screw .

U410/U410 Touch: Remove six screws and screw .

Step Screw (quantity) Color Torque

M2.5 × 3.5 mm, flat-head, nylok-coated (1) (U310/U310 Touch)

M2.5 × 4.0 mm, flat-head, nylok-coated (1) (U410/U410 Touch)

Silver

2.5 kgfcm

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Maintenance Manual

Figure 6. Removal steps of fan assembly and heat sink assembly (continued)

Lift the fan assembly and heat sink assembly in the direction shown by arrow

. Be careful not to damage the connector.

U310/U310 Touch:

U410/U410 Touch:

When installing: Make sure that the fan connector is attached firmly to the system board.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 6. Removal steps of fan assembly and heat sink assembly (continued)

U310/U310 Touch:

After removing fan, attach copper foil into the areas outlined by red in the illustration below. The copper foil should start from the left edge of the system board (noted by the blue baseline) and over the area marked in blue. Do not put the copper foil over the white cable.

Note:

1. In the area indicated by the far left yellow circle, ensure good contact between

copper foil and the protruding white wire.

2. In the area indicated by the center yellow circle, attach directly to the flat

surface area, and make sure there is good adhesion between copper foil and flat surface area. Avoid contact with LVDS cable: it may be necessary to lift up the cable and then restore it to its ordinal position after affixing the copper foil.

3. In the area indicated by the far right yellow circle, ensure small copper plate

part has good contact. If there has been a white label attached, first clean plate thoroughly then affix copper foil.

Under the fan and on top of the main structure, attach copper foil according to the illustration below.

Note: In the area noted by the green rectangle, attach directly to the main structure. In the areas outlined by red ovals, take care to avoid the copper foil breaking at these points, and assure good adhesion to the metal base.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 6. Removal steps of fan assembly and heat sink assembly (continued)

U410/U410 Touch:

The second location - under the fan. Remove the 7 screws on the fan and the interface, then remove the fan.

After the fan has been removed, apply Cu foil to the red areas in the illustration below, starting from the blue baseline on the edge of the system boa rd on the left, and along the horizontal blue baseline of the metal component. (Cover a little more than the horizontal baseline.)

Note:

1.The yellow area on the left: ensure there’s a good connection between the foil

and the white ribbon cable.

2.The yellow area in the middle: apply the foil directly to the hinge, and ensure

there’s a good connection.

3. The yellow area on the right: ensure the connection is good on the termination

block. If there is a white label in this area, remove it and clean the area before applying the foil.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 6. Removal steps of fan assembly and heat sink assembly (continued)

The illustration below shows how it looks after the area on the upper cover which is under the fan has been treated;

Note: In the green box area, apply the foil to the upper cover to enhance the adhesion.

Confirm the following tasks have been completed. Connect battery interface, then follow the disassembling and assembling instructions and assemble the fan and bottom cover.

1. Having applied absorbers to the bottom cover as required.

2. Having applied Cu foils to the adapter interface and the area under the fan as

required.

3. Having replaced the wireless network card as required.

Note:

1. Connect antenna to the wireless network card correctly: port M should be

connected to the black antenna, and port A should be connected to the white antenna.

2. The assembling process requires gentle handling to avoid bottom cover

deformation.

3. Copper debris may be caused when applying Cu foils. Check and remove all

the copper debris from the system board, to avoid short circuit.

Note: The old bluetooth driver has to be removed manually before installing a new one. Otherwise, the bluetooth driver may not function.

When the steps above have been completed, follow the normal procedures to test the machine.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

1070 Keyboard

For access, remove these FRUs in order::

• “1010 Battery pack” on page 34

• “1060 Fan assembly and Heat Sink assembly” on page 54

Figure 7. Removal steps of keyboard

Remove screws .

U310/U310 Touch:

U410/U410 Touch:

Step Screw (quantity) Color Torque

M2.0 × 2.5 mm, flat-head, nylok-coated (2) (U310/U310 Touch)

M2.0 × 3.0 mm, flat-head, nylok-coated (3) (U410/U410 Touch)

Silver

2.0 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 7. Removal steps of keyboard (continued)

Push the back of the keyboard in the direction shown by arrow .

Lift the keyboard a little , and then detach the connector in the direction shown by arrow .

U310/U310 Touch:

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 7. Removal steps of keyboard (continued)

U410/U410 Touch:

When installing: Make sure that the FPC connector is attached firmly.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

1080 System board

Important notices for handling the system board:

When handling the system board, bear the following in mind.

• Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite.

• Avoid rough handling of any kind.

• In the whole process, make sure not to drop or stack the system board.

• If you put a system board down, make sure to put it only on a padded surface such as an ESD mat or conductive corrugated material.

For access, remove these FRUs in order:

• “1010 Battery pack” on page 34

• “1020 Dummy card” on page 45

• “1030 Hard disk drive” on page 46

• “1040 DIMM” on page 49

• “1050 PCI Express Mini Card for wireless LAN/WAN” on page 51

• “1060 Fan assembly and Heat Sink assembly” on page 54

• “1070 Keyboard” on page 60

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 8. Removal steps of system board (continued)

Remove four screws .

U310/U310 Touch:

U410/U410 Touch:

Step Screw (quantity) Color Torque

M2.5 × 3.5 mm, flat-head, nylok-coated (4)

(U310/U310 Touch) M2.5 × 4 mm, flat-head, nylok-coated (4)

(U410/U410 Touch)

Silver

2.5 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 8. Removal steps of system board (continued)

Unplug the microphone connector in the direction , DC-IN cable connector in the direction , speaker connector , camera connector , pull the tab to disconnect the LCD connector in the direction , disconnect power board connector in the direction , TP connector in the direction , USB board connector in the direction .

U310/U310 Touch:

U410/U410 Touch:

g a h

d e b i

When installing: Make sure that all the connectors are attached firmly.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware

Maintenance Manual

Figure 8. Removal steps of system board (continued)

Remove the system board in the direction shown by arrow .

U310/U310 Touch:

U410/U410 Touch:

When installing: When attaching the system board to the base cover, adjust the placement of the USB, HDMI, RJ-45 ports as shown in , and make sure that they are attached to the holes on the base cover as shown. Improper placement of those jacks might cause a damage.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

1090 LCD unit

For access, remove these FRUs in order:

• “1010 Battery pack” on page 34

• “1030 Hard disk drive” on page 46

• “1040 DIMM” on page 49

• “1050 PCI Express Mini Card for wireless LAN/WAN” on page 51

• “1060 Fan assembly and Heat Sink assembly” on page 54

• “1070 Keyboard” on page 60

• “1080 System board” on page 63

Figure 9. Removal steps of LCD unit

Remove four screws .

Step Screw (quantity) Color Torque

When installing:

• Route the antenna cables along the cable guides. As you route the cables,

• Make sure that the LCD connector is attached firmly and make sure that you

M2.5 × 3.5 mm, flat-head, nylok-coated (4) (U310/U310 Touch)

M2.5 × 4.0 mm, flat-head, nylok-coated (4) (U410/U410 Touch)

make sure that they are not subjected to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.

do not pinch the antenna cables when you attach the LCD assembly. Route the LCD cable along the cable guides.

Silver

2.5 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 9. Removal steps of LCD unit (continued)

Peel off the mylar, affix the Cu foil as shown in the illustrations above, then press it hard to make sure the Cu foil pasted on the frame surface firmly.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 9. Removal steps of LCD unit (continued)

Remove the LCD unit in the direction shown by arrow .

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

1100 Base cover, bluetooth card, USB board, power assembly and power board

For access, remove these FRUs in order:

• “1010 Battery pack” on page 34

• “1030 Hard disk drive” on page 46

• “1040 DIMM” on page 49

• “1050 PCI Express Mini Card for wireless LAN/WAN” on page 51

• “1060 Fan assembly and Heat Sink assembly” on page 54

• “1070 Keyboard” on page 60

• “1080 System board” on page 63

• “1090 LCD unit” on page 67

Figure 10. Base cover, bluetooth card, USB board, power assembly and power board

Remove the power assembly in the direction shown by arrow .

U310/U310 Touch:

When installing: Make sure that the power connector is attached firmly.

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 10. Base cover, bluetooth card, USB board, power assembly and power board (continued)

Remove two screws , and then remove the USB board in the direction shown by arrow .

Step Screw (quantity) Color Torque

M2.5 × 3.5 mm, flat-head, nylok-coated (2)

(U310/U310 Touch) M2.5 × 4.0 mm, flat-head, nylok-coated (2)

(U410/U410 Touch)

When installing: When attaching the USB board to the base cover, adjust the placement of the USB and headphone jacks as shown , and make sure that both of the USB and the headphone jacks are attached to the holes on the base cover as shown. Improper placement of the jacks might cause a damage.

Silver

2.5 kgfcm

Remove the bluetooth card in the direction shown by arrow .

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Figure 10. Base cover, bluetooth card, USB board, power assembly and power board (continued)

Remove the screw to lift the power board in the direction shown by arrow .

Step Screw (quantity) Color Torque

M2.5 × 3.5 mm, flat-head, nylok-coated (1)

(U310/U310 Touch) M2.5 × 4.0 mm, flat-head, nylok-coated (1)

(U410/U410 Touch)

U410/U410 Touch:

Place the treated bottom cover on the work space before starting the next step. Cu foils need to be applied in two locations:

The first location - adapter interface: Take a rectangular Cu foil (19mm long x 8mm wide), and apply it to the red area in the illustration below. starting at the blue baseline on the left edge of the adapter interface, and ending at the metal component on the left sidewall of the network interface.

Note: It’s important to ensure there is a good connection between the adapter interface and the ground pins in the yellow areas in the illustration below, when applying the foil.

Silver

2.5 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 10. Base cover, bluetooth card, USB board, power assembly and power board (continued)

The illustration below shows how it looks when the adapter interface and network interface have been covered with the Cu foils.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Note: Applying labels to the base cover

The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the base cover, you need to apply the following label:

The following labels need to be peeled off from the old base cover, and need to be put on the new base cover.

e-Standby Label (KOR) COA Label Israel WLAN Label WL Label BT Label KCC Label or WLAN Label for Malaysia/Indonesia

For some models, you also need to apply one or two FCC labels. Check the old base cover; if it has one or two FCC labels, find duplicates of them in the label kit and apply them to the new base cover.

For the location of each label, refer to the following figure: U310/U310 Touch: U410/U410 Touch:

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Lenovo IdeaPad U310/U410 U310/U410 Touch

1110 LCD front bezel

For access, remove these FRUs in order:

• “1010 Battery pack” on page 34

• “1030 Hard disk drive” on page 46

• “1040 DIMM” on page 49

• “1050 PCI Express Mini Card for wireless LAN/WAN” on page 51

• “1060 Fan assembly and Heat Sink assembly” on page 54

• “1070 Keyboard” on page 60

• “1080 System board” on page 63

• “1090 LCD unit” on page 67

• “1100 Base cover, bluetooth card, USB board, power assembly and power board” on page 70

Figure 11. Removal steps of LCD front bezel

Remove the LCD front bezel in the direction shown by arrows .

U310:

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

1120 LCD panel, LCD cable, hinges and speakers

For access, remove these FRUs in order:

• “1010 Battery pack” on page 34

• “1030 Hard disk drive” on page 46

• “1040 DIMM” on page 49

• “1050 PCI Express Mini Card for wireless LAN/WAN” on page 51

• “1060 Fan assembly and Heat Sink assembly” on page 54

• “1070 Keyboard” on page 60

• “1080 System board” on page 63

• “1090 LCD unit” on page 67

• “1100 Base cover, bluetooth card, USB board, power assembly and power board” on page 70

• “1110 LCD front bezel” on page 75

Figure 12. LCD panel, LCD cable, hinges and speakers

Note: The LCD part of U310/U410 Touch cannot be removed. Remove screws .

U310:

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 12. LCD panel, LCD cable, hinges and speakers (continued)

U410:

Step Screw (quantity) Color Torque

Disconnect the connector , lift the LCD panel in the direction shown by arrow

U310:

M1.7 × 1.5 mm, flat-head, nylok-coated (4) (U310)

M2.0 × 2.5 mm, flat-head, nylok-coated (6) (U410)

Silver

2.0 kgfcm

When installing: Make sure that the connector is attached firmly.

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Maintenance Manual

Figure 12. LCD panel, LCD cable, hinges and speakers (continued)

Remove screws and the hinges.

U310:

U410:

Step Screw (quantity) Color Torque

M2.0 × 6.8 mm, flat-head, nylok-coated (8) (U310)

M2.5 × 3.0 mm, flat-head, nylok-coated (10) (U410)

Silver

2.5 kgfcm

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Figure 12. LCD panel, LCD cable, hinges and speakers (continued)

Remove two screws , and then remove the speakers in the direction shown by arrow .

U410:

Affix the Cu foil as shown in the illustration above, then press it hard to make sure the Cu foil pasted onto the frame surface firmly.

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware

Maintenance Manual

1130 Integrated camera

For access, remove these FRUs in order:

• “1010 Battery pack” on page 34

• “1030 Hard disk drive” on page 46

• “1040 DIMM” on page 49

• “1050 PCI Express Mini Card for wireless LAN/WAN” on page 51

• “1060 Fan assembly and Heat Sink assembly” on page 54

• “1070 Keyboard” on page 60

• “1080 System board” on page 63

• “1090 LCD unit” on page 67

• “1100 Base cover, bluetooth card, USB board, power assembly and power board” on page 70

• “1110 LCD front bezel” on page 75

• “1120 LCD panel, LCD cable, hinges and speakers” on page 76

Figure 13. Removal steps of integrated camera

Note: The integrated camera is stuck on the top center of the LCD cover. Detach the connector in the direction , Remove the integrated camera from

the LCD cover in the direction .

When installing: Stick the integrated camera to the top center of the LCD cover and adjust the placement of it to make sure the connector is attached firmly.

Page 85

Locations

Front view

Lenovo IdeaPad U310/U410 U310/U410 Touch

Integrated camera

Computer display

Wireless module antennas Power button

System status indicators

Touchpad

Speakers

U310/U310 Touch:

U410/U410 Touch:

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware

Maintenance Manual

Right-side view

Built-in microphone

Combo audio jack

USB port AC power adapter jack

Memory card slot

HDMI port

RJ-45 port

U310/U310 Touch:

U410/U410 Touch:

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Lenovo IdeaPad U310/U410 U310/U410 Touch

Bottom and Left-side view

Louvers

OneKey Rescue system button

Fan louvers RJ-45 port

HDMI port

USB port

Combo audio jack

Built-in microphone

U310/U310 Touch:

U410/U410 Touch:

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Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Parts list

This section presents the following service parts:

• “Overall” on page 85

• “LCD FRUs” on page 90

• “Keyboard” on page 93

• “Miscellaneous parts” on page 105

• “AC adapters” on page 106

• “Power cords” on page 107

Notes:

• Each FRU is available for all types or models, unless specific types or models are specified.

Page 89

Overall

Lenovo IdeaPad U310/U410 U310/U410 Touch

U310/U310 Touch

U410/U410 Touch

Page 90

Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Table 4. Parts list—Overall

No. FRU FRU no. CRU

1 LZ7T LCD Module AUO 90400096 1 LZ8T LCD Module 90400111 1 LCD unit (see “LCD FRUs” on page 90.) 2 Keyboard (see “Keyboard” on page 93.) 3 LZ7 Upper Case Grey (U310/U310 Touch) 90200788 N 3 LZ7 Upper Case White (U310/U310 Touch) 90200789 N 3 LZ8 Upper Case Grey (U410/U410 Touch) 90200802 ** 4 LZ7 MB UMA I5-2467 1.6G (U310/U310 Touch) 90000205 N 4 LZ7 MB UMA I3-2367 1.4G (U310/U310 Touch) 90000204 N 4 LZ8 MB DIS I5-2467 1.6G (U410/U410 Touch) 90000210 * 4 LZ8 MB DIS I3-2367 1.4G (U410/U410 Touch) 90000209 * 4 LZ7 MB UMA I5-3317 1.7G (U310/U310 Touch) 90000280 * 4 LZ8 MB DIS I3-3217 1.8G (U410/U410 Touch) 90000278 * 4 LZ8 MB DIS I5-3317 1.7G (U410/U410 Touch) 90000279 * 5 Processor, Ivy Bridge Du al Core ULV, Intel I3-3217U 1.8G

L1 3M 2cBGA

5 Processor, Ivy Bridge Dual Core ULV, Intel I5-3317U 1.7G

L1 3M 2cBGA

5 Processor, Ivy Bridge Dual Core ULV, Intel I5-3427U 1.8G

L1 3M 2cBGA

5 Processor, Sandy Bridge Dual Core ULV, Intel 977 1.4G J1

2M 2cBGA

5 Processor, Sandy Bridge Dual Core ULV, Intel SNB

I5-2467M 1.6G 3M J1 BGA

5 Processor, Sandy Bridge Dual Core ULV, Intel I3-2367M

1.4G J1 3M 2cBGA

6 DDR3 1600 2GB, Samsung, M471B5773DH0-CK0 DDR3

1600 2GB

6 DDR3 1600 2GB, Hynix, HMT325S 6CFR8C-PB DDR3 1600

2GB

6 DDR3 1600 2GB, Micron, MT8KTF25664HZ-1G6M1

DDR3 1600 2GB

6 DDR3 1600 2GB, Ramaxel, RMT3150ED58E8W-1600

DDR3 1600 2GB

6 DDR3 1600 2GB, Sharetronic(Micron), SM321NH08IAF

DDR3 1600 2GB

6 DDR3 1600 4GB, Samsung, M471B5273DH0-CK0 DDR3

1600 4GB

6 DDR3 1600 4GB, Micron, MT16KTF51264HZ-1G6M1

DDR3 1600 4GB

6 DDR3 1600 4GB, Hynix, HMT351S 6CFR8C-PB DDR3 1600

4GB

6 DDR3 1600 4GB, Ramaxel, RMT3160ED58E9W-1600

DDR3 1600 4GB

6 DDR3 1600 4GB, Sharetronic(Micron), SM322NQ08IAF

DDR3 1600 4GB

102500313 N

102500314 N

102500315 N

102500246 N

102500068 N

102500152 N

11200340 N

11200343 N

11200346 N

11200392 N

11200396 N

11200341 N

11200347 N

11200344 N

11200393 N

11200397 N

Page 91

Lenovo IdeaPad U310/U410 U310/U410 Touch

Table 4. Parts list—Overall (continued)

No. FRU FRU no. CRU

7 LZ7 SD Dummy Card (U310/U310 Touch) 90000230 N 7 LZ7 SD Dummy Card Grey (U310/U310 Touch) 90000231 N 7 LZ8 SD Dummy Card Grey (U410/U410 Touch) 90000232 ** 8 LZ7 USB2.0 Board (U310/U310 Touch) 90000208 N 8 LZ8 USB2.0 Board (U410/U410 Touch) 90000213 ** 9 WLAN, WiFi 1x2 BGN + WiMAX, Intel 6150NX MOW M

PCIE NB HMC (LI) (U410/U410 Touch)

9 WLAN, WiFi 1x2 BGN + WiMAX, Intel 6150NX BSB M

PCIE NB HMC (LI) (U410/U410 Touch)

9 WLAN, WiFi 2x2 BGN, Intel 2200N MOW M PCIE NB

HMC (U410/U410 Touch)

9 WLAN, WiFi 1x1 BGN, CyberTan, Cbt BCM4313 MOW M

PCIE NB HMC (U410/U410 Touch)

9 WLAN, WiFi 1x1 BGN, Liteon, Liteon AR9285 HB95 BGN

MOW NB (U410/U410 Touch)

9 WLAN, WiFi 1x1 BGN+BT4.0, CyberTan, Cbt

BCM4313HMGB BGN+BT HMC (U410/U410 Touch)

9 WLAN, WiFi 1x1 BGN+BT3.0, Liteon, Liteon WB195

BGN+BT HMC (U410/U410 Touch)

9 WLAN, WiFi 2x2 BGN, Intel 2200N MOW M PCIE NB

HMC (U310/U310 Touch)

9 WLAN, WiFi 1x1 BGN, CyberTan, Cbt BCM4313 MOW M

PCIE NB HMC (U310/U310 Touch)

9 WLAN, WiFi 1x1 BGN, Liteon, Liteon AR9285 HB95 BGN

MOW NB (U310/U310 Touch)

9 WLAN, WiFi 1x1 BGN+BT4.0, CyberTan, Cbt

BCM4313HMGB BGN+BT HMC (U310/U310 Touch)

9 WLAN, WiFi 1x1 BGN+BT3.0, Liteon, Liteon WB195

BGN+BT HMC (U310/U310 Touch) 10 LZ8 Thermal Module DIS 17W (U410/U410 Touch) 90200806 ** 10 LZ7 Thermal Module UMA 17W (U310/U310 Touch) 90200793 N 11 LZ7 Lower Case Grey (U310/U310 Touch) 90200790 N 11 LZ7 Lower Case Pink (U310/U310 Touch) 90200791 N 11 LZ7 Lower Case Blue (U310/U310 Touch) 90200792 N 11 LZ8 Lower Case Grey (U410/U410 Touch) 90200803 ** 11 LZ8 Lower Case Red (U410/U410 Touch) 90200804 ** 11 LZ8 Lower Case Blue (U410/U410 Touch) 90200805 ** 12 Battery, 3S1P 3cells 4160mAh 46Wh, SMP, Z380+ SMP/

ATL L11M3P01 3S1P 46Wh bty (U310/U310 Touch) 12 Battery, 2S2P 4cells 8060mAh 59Wh, SMP Z480+ SMP/

ATL L10M4P11 2S2P 59Wh bty (U410/U410 Touch) 13 HDD,500G 5400rpm, WD (ML500M) WD WD5000BPVT-

24A1YT0 5400PRM 9.5mm 500 HDD 13 HDD,500G 5400rpm, WD (ML375M) WD5000BPVT-

24HXZT1/WD5000BPVT-24HXZ

20002484 **

20002543 **

20200048 **

20002505 **

20002357 **

20002501 **

20002524 **

20200048 *

20002505 *

20002357 *

20002501 *

20002524 *

121500058 *

121500059 *

16200089 **

16004846 **

Page 92

Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Table 4. Parts list—Overall (continued)

No. FRU FRU no. CRU

13 HDD,500G 5400rpm, Toshiba Capricorn BS Toshiba

MK5065GSX 5400RPM 500G

13 HDD,500G 5400rpm, HGST (Jaquar B7) HGST

HTS545050A7E380 5400PRM7mm 500G HDD

13 HDD,500G 5400rpm, Seagate Waytt Seagate

ST9500325AS 500G 9NB

13 HDD,500G 5400rpm, Seagate M8 ST500LM012 5.4K 9.5

500G HDD 13 HDD,500G 5400rpm, WD(MN500S) WD MN500S TBD ** 13 HDD,500G 7200rpm, HGST Jaguar C7,

HTS725050A7E630 7 7.2K 500G HDD (U410/U410 Touch) 13 HDD,500G 7200rpm, WD MX375M, WD WD5000BPKT

7200RPM 500G (U410/U410 Touch) 13 HDD,500G 7200rpm, Toshiba Capricorn CS, TSB

MK5061GSY 7200PRM 9.5mm 500G HDD (U410/U410

Touch) 13 HDD,750G 5400rpm, Toshiba Capricorn CS, Toshiba

MK7575GSX 5400RPM 750G HDD (U410/U410 Touch) 13 HDD,750G 5400rpm, WD (ML500M), WD WD7500BPVT-

24A1YT0 5400PRM 9.5mm 750 HDD (U410/U410 Touch) 13 HDD,750G 5400rpm, WD (ML375M) WD7500BPVT-

24HXZT1/WD7500BPVT-24HXZ (U410/U410 Touch) 13 HDD,750G 5400rpm, HGSTJaguar B, HTS541075A9E680

9.5 5.4K 750G HDD (U410/U410 Touch)

13 HDD,750G 5400rpm, Seagate M8, ST750LM022 5.4K 9.5

750G HDD (U410/U410 Touch) 13 HDD,1TB 5400rpm, HGST Jaguar B, HTS541010A9E680

9.5 5.4K 1T HDD (U410/U410 Touch)

13 HDD,1TB 5400rpm, WD ML500M, WD WD10JPVT-

24A1YT0 5400PRM 9.5mm 1T HDD (U410/U410 Touch) 13 HDD,1TB 5400rpm, Seagate M8, ST1000LM024 5.4K 9.5

1T HDD (U410/U410 Touch) 13 SSD, 16G SSD, Sandisk, Sandisk U100 16G mSATA SSD

(U410/U410 Touch) 13 SSD, 16G SSD, Lite-on, Lite-on LMT-16M3M 16G mSATA

SSD (U410/U410 Touch) 13 SSD, 32G SSD, Samsung, Samsung PM830 32G mSATA

SSD (U410/U410 Touch) 13 SSD, 32G SSD, Sandisk, Sandisk X100 32G mSATA

SSD(U410/U410 Touch) 13 SSD, 32G SSD, Micron, Micron C400v 32G mSATA SSD

(U410/U410 Touch) 13 HDD 320G 5400rpm, HGST (Jaquar B7), HGST

HTS545032A7E380 5400PRM7mm 320G HDD (U310/U310

Touch) 13 HDD 320G 5400rpm, Seagate (Sapta 15), Seagate

ST320LT020 5400RPM 7MM 320G (U310/U310 Touch)

16004643 **

16200067 **

16004189 **

16200210 **

16200195 *

16200004 *

16200086 *

16005334 *

16200088 *

16004848 *

16200192 *

16200209 **

16200193 **

16200071 **

16200208 **

16200215 **

16200241 **

16200108 **

16200162 **

16200163 **

16200068 **

16005211 **

Page 93

Lenovo IdeaPad U310/U410 U310/U410 Touch

Table 4. Parts list—Overall (continued)

No. FRU FRU no. CRU

13 HDD 320G 5400rpm, WD (MN500S), WD MN500S

(U310/U310 Touch) 13 HDD 500G 5400rpm, HGST (Jaquar B7), HGST

HTS545050A7E380 5400PRM7mm 500G HDD (U310/

U310 Touch) 13 HDD 500G 5400rpm, WD (MN500S), WD MN500S

(U310/U310 Touch) 13 SSD 16G SSD, Sandisk, Sandisk U100 16G mSATA SSD

(U310/U310 Touch) 13 SSD 16G SSD, Lite-on, Lite-on LMT-16M3M 16G mSATA

SSD (U310/U310 Touch) 13 SSD 32G SSD, Samsung, Samsung PM830 32G mSATA

SSD (U310/U310 Touch) 13 SSD 32G SSD, Sandisk, Sandisk X100 32G mSATA SSD

(U310/U310 Touch) 13 SSD 32G SSD, Micron, Micron C400v 32G mSATA SSD

(U310/U310 Touch) 14 LZ7 Power Board WO/Cable (U310/U310 Touch) 90000207 N 14 LZ8 Power Board WO/Cable (U410/U410 Touch) 90000212 **

TBD *

16200067 *

TBD *

16200215 *

16200241 *

16200108 *

16200162 *

16200163 *

Page 94

Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

LCD FRUs

In Lenovo IdeaPad U310/U410, there are following types of LCDs.

• “13.3 -in. HD TFT” U310

• “14.0 -in. HD TFT” U410

Page 95

Lenovo IdeaPad U310/U410 U310/U410 Touch

13.3-in. HD TFT (U310)

Table 5. Parts list—13.3-in. HD TFT

No. FRU FRU no. CRU

1 LZ7 LCD Bezel Black (U310) 90200786 N 1 LZ7 LCD Bezel White (U310) 90200787 N 2 Panel 13.3" 16:9 Flat, AUO, AUO B133XTN01.0 HD G F

LED1 NB LCD (U310) 2 Panel 13.3" 16:9 Flat, CMI, TBD (U310) TBD N 2 LZ7 LED Board WO/Cable (U310) 90000206 N 3 LZ7 LED Board Cable (U310) 90200795 N 3 LZ7 LCD Cable (U310) 90201042 4 LZ7 Camera Board 0.3M 90000322 4 LZ7 Camera Board 1.0M 90000323 5 LZ7 LCD Cover Grey(U310) 90200783 N 5 LZ7 LCD Cover Pink(U310) 90200784 N 5 LZ7 LCD Cover Blue(U310) 90200785 N 6 Hinge Antenna, 2.3/2.7 Chengjun, Acon Chengjun U310

2.3/2.7 Hinge ANT Left

6 Hinge Antenna, 2.3/2.7 Sinher, Acon Sinher U310 2.3/2.7

Hinge ANT Left 6 Hinge Antenna, 2.3/2.7 SZS, Acon SZS U310 2.3/2.7

Hinge ANT Left 7 Hinge Antenna, 2.3/2.7 Chengjun, Acon Chengjun U310

2.3/2.7 Hinge ANT Right

7 Hinge Antenna, 2.3/2.7 Sinher, Acon Sinher U310 2.3/2.7

Hinge ANT Right

18200262 N

20200151 N

20200153 N

20200155 N

20200152 N

20200154 N

Page 96

Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

14.0-in. HD TFT (U410)

Table 6. Parts list—14.0-in. HD TFT

No. FRU FRU no. CRU

1 LZ8 LCD Bezel Black (U410) 90200801 N 2 Panel 14.0" 16:9 Flat, AUO, AUO B140XTN02.0 HD G F

LED1 NB LCD (U410) 2 Panel 14.0" 16:9 Flat, CMI, CMI N140BGE-LB2 HD G F

LED1 NB LCD (U410) 2 LZ8 LED Board WO/Cable (U410) 90000211 N 3 LZ8 LCD Cable (U410) 90201041 5 LZ8 LCD Cover Grey(U410) 90200798 N 5 LZ8 LCD Cover Blue(U410) 90200799 N 5 LZ8 LCD Cover Red (U410) 90200800 N 6 Hinge Antenna, 2.3/2.7 Chengjun, Acon Chengjun U410

2.3/2.7 Hinge ANT Left

6 Hinge Antenna, 2.3/2.7 Sinher, Acon Sinher U410 2.3/2.7

Hinge ANT Left 6 Hinge Antenna, 2.3/2.7 SZS, Acon SZS U410 2.3/2.7

Hinge ANT Left 7 Hinge Antenna, 2.3/2.7 SZS, Acon SZS U310 2.3/2.7

Hinge ANT Right 7 Hinge Antenna, 2.3/2.7 Chengjun, Acon Chengjun U410

2.3/2.7 Hinge ANT Right

7 Hinge Antenna, 2.3/2.7 Sinher, Acon Sinher U410 2.3/2.7

Hinge ANT Right 7 Hinge Antenna, 2.3/2.7 SZS, Acon SZS U410 2.3/2.7

Hinge ANT Right

18200263 N

18200439 N

20200157 N

20200159 N

20200161 N

20200156 N

20200158 N

20200160 N

20200162 N

Page 97

Keyboard

Table 7. Parts list—Keyboard

Language P/N CRU

keyboard U310/U310 Touch

Lenovo IdeaPad U310/U410 U310/U410 Touch

Indian 25204798 ** Czechoslovakian 25204797 Bulgarian 25204796 International English 25204795 Swiss 25204794 Slovenian 25204793 Icelandic 25204792 Belgian 25204791 Four Nordic countries 25204790 Hungarian 25204789 Hebrew 25204788 Greek 25204787 Dutch 25204786

Chicony (gray silver box)

Sunrex (gray silver box)

Japanese 25204785 Brazilian 25204784 Arabic 25204783 German 25204782 French 25204781 Russian 25204780 Traditional Chinese 25204779 Korean 25204778 Canadian English&French 25204777 Latin 25204776 Portuguese 25204775 Thai 25204774 Turkish 25204773 Spanish 25204772 Italian 25204771 U.K. English 25204770 English 25204769 Indian 25204888 Czechoslovakian 25204887 Bulgarian 25204886 International English 25204885 Swiss 25204884 Slovenian 25204883 Icelandic 25204882 Belgian 25204881 Four Nordic countries 25204880 Hungarian 25204879 Hebrew 25204878 Greek 25204877 Dutch 25204876 Japanese 25204875 Brazilian 25204874

Page 98

Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Table 7. Parts list—Keyboard (continued)

Language P/N CRU

Arabic 25204873 ** German 25204872 French 25204871 Russian 25204870 Traditional Chinese 25204869

Sunrex (gray silver box) (continued)

keyboard U310/U310 Touch (continued)

Darfon (gray silver box)

Korean 25204868 Canadian English&French 25204867 Latin 25204866 Portuguese 25204865 Thai 25204864 Turkish 25204863 Spanish 25204862 Italian 25204861 U.K. English 25204860 English 25204859 Indian 25204978 Czechoslovakian 25204977 Bulgarian 25204976 International English 25204975 Swiss 25204974 Slovenian 25204973 Icelandic 25204972 Belgian 25204971 Four Nordic countries 25204970 Hungarian 25204969 Hebrew 25204968 Greek 25204967 Dutch 25204966 Japanese 25204965 Brazilian 25204964 Arabic 25204963 German 25204962 French 25204961 Russian 25204960 Traditional Chinese 25204959 Korean 25204958 Canadian English&French 25204957 Latin 25204956 Portuguese 25204955 Thai 25204954 Turkish 25204953 Spanish 25204952 Italian 25204951 U.K. English 25204950 English 25204949

Page 99

Lenovo IdeaPad U310/U410 U310/U410 Touch

Table 7. Parts list—Keyboard (continued)

Language P/N CRU

Indian 25204828 ** Czechoslovakian 25204827 Bulgarian 25204826 International English 25204825 Swiss 25204824 Slovenian 25204823 Icelandic 25204822 Belgian 25204821 Four Nordic countries 25204820 Hungarian 25204819 Hebrew 25204818 Greek 25204817 Dutch 25204816

Chicony (white box)

keyboard U310/U310 Touch (continued)

Sunrex (white box)

Japanese 25204815 Brazilian 25204814 Arabic 25204813 German 25204812 French 25204811 Russian 25204810 Traditional Chinese 25204809 Korean 25204808 Canadian English&French 25204807 Latin 25204806 Portuguese 25204805 Thai 25204804 Turkish 25204803 Spanish 25204802 Italian 25204801 U.K. English 25204800 English 25204799 Indian 25204918 Czechoslovakian 25204917 Bulgarian 25204916 International English 25204915 Swiss 25204914 Slovenian 25204913 Icelandic 25204912 Belgian 25204911 Four Nordic countries 25204910 Hungarian 25204909 Hebrew 25204908 Greek 25204907 Dutch 25204906 Japanese 25204905 Brazilian 25204904

Page 100

Lenovo IdeaPad U310/U410 U310/U410 Touch Hardware Maintenance Manual

Table 7. Parts list—Keyboard (continued)

Language P/N CRU

Arabic 25204903 ** German 25204902 French 25204901 Russian 25204900 Traditional Chinese 25204899

Korean 25204898 Sunrex (white box) (continued)

keyboard U310/U310 Touch (continued)

Darfon (white box)

Canadian English&French 25204897

Latin 25204896

Portuguese 25204895

Thai 25204894

Turkish 25204893

Spanish 25204892

Italian 25204891

U.K. English 25204890

English 25204889

Indian 25205008

Czechoslovakian 25205007

Bulgarian 25205006

International English 25205005

Swiss 25205004

Slovenian 25205003

Icelandic 25205002

Belgian 25205001

Four Nordic countries 25205000

Hungarian 25204999

Hebrew 25204998

Greek 25204997

Dutch 25204996

Japanese 25204995

Brazilian 25204994

Arabic 25204993

German 25204992

French 25204991

Russian 25204990

Traditional Chinese 25204989

Korean 25204988

Canadian English&French 25204987

Latin 25204986

Portuguese 25204985

Thai 25204984

Turkish 25204983

Spanish 25204982

Italian 25204981

U.K. English 25204980

English 25204979