Lenovo E41 10 15 Hmm En User Manual Hardware Maintenance 10/E41 Laptops (Lenovo)

2016-06-08

User Manual: Lenovo E41-10 E41-15 Hmm En Hardware Maintenance Manual - Lenovo E41-10/E41-15 E41-10 Laptops (Lenovo) E41-10 Laptops (Lenovo)

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Lenovo
E41-10/E41-15
Hardware
Maintenance
Manual

Note:
Before using this information and the product it supports, be sure to read the general information
under “Notices” on page 81.

First Edition (April 2016)
© Copyright Lenovo 2016. All rights reserved.
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.
© 2016 Lenovo

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 ................. 22
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
Putting the computer to sleep or shutting it
down ............................................................. 25

Screw notices ................................................ 32
Removing and replacing an FRU .................... 33
1010 Keyboard.............................................. 34
1020 Optical drive........................................ 36
1030 Base cover ............................................ 37
1040 Battery pack ......................................... 39
1050 Hard disk drive ................................... 41
1060 DIMM ................................................... 43
1070 PCI Express Mini Card for wireless
LAN/WAN .................................................. 44
1080 Fan assembly and Heat Sink
assembly........................................................ 47
1090 System board ....................................... 49
1100 LCD unit............................................... 52
1110 Speakers, base cover, IO board, DC-IN,
power board and touch pad board ........... 54
1120 LCD front bezel................................... 57
1130 LCD panel, LCD cable and hinges ... 58
1140 Integrated camera ............................... 60
1150 Antenna assembly and LCD cover... 61
Locations ............................................................. 62
Front view ..................................................... 62
Bottom and Left-side view ......................... 63
Right-side view ............................................ 64
Parts list ............................................................... 65
Overall ........................................................... 66
LCD FRUs ..................................................... 70
Keyboard....................................................... 72
AC adapters.................................................. 78
Screws............................................................ 79
Power cords .................................................. 80
Notices ......................................................... 81
Trademarks......................................................... 82

Lenovo E41-10/E41-15 ................................27
Specifications ..................................................... 27
Status indicators ................................................ 29
Hotkeys ............................................................... 31
FRU replacement notices.................................. 32

iii

About this manual
This manual contains service and reference information for the following
Lenovo product:
Lenovo E41-10/E41-15
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.

Safety information

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 E41-10/E41-15 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.

Safety information

Electrical safety
Observe the following rules when working on electrical equipments.
Important:
Use only approved tools and test equipments. Some hand tools have
handles covered with a soft material that does not insulate you when
working with live electrical currents.
Many customers have rubber floor mats near their machines that contain
small conductive 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
you.
Attention: Another person must be there to switch off the power, if
necessary.
– Use only one hand when working with powered-on electrical equipment;
keep the other hand in your pocket or behind your back.
Attention: An electrical shock can occur only when there is a complete
circuit. By observing the above rule, you may prevent a current from
passing through your body.
– When using testers, set the controls correctly and use the approved probe
leads and accessories for that tester.
– Stand on suitable rubber mats (obtained locally, if necessary) to insulate
you from grounds such as metal floor strips and machine frames.
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 E41-10/E41-15 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.

Safety information

Safety inspection guide
The purpose of this inspection guide is to assist you in identifying potential
unsafe conditions. As each machine was designed and built, required safety
items were installed to protect users and service personnel from injury. This
guide addresses only those items. You should use good judgment to identify
potential safety hazards due 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 any obvious unsafe conditions, such as metal filings,
contamination, water or other liquids, or signs of fire or smoke damage.
8. Check for worn, frayed, or pinched cables.
9. Check that the power-supply cover fasteners (screws or rivets) have not been
removed or tampered with.

Lenovo E41-10/E41-15 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 ESD damage is desirable but
not necessary.
– Attach the ESD ground clip to any frame ground, ground braid, or greenwire 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.

Safety information

Safety notices: multilingual translations
The safety notices in this section are provided in English, French, German,
Hebrew, Italian, Japanese, and Spanish.
Safety notice 1
Before the computer is powered on after FRU replacement, make sure all
screws, springs, and other small parts are in place and are not left loose
inside the computer. Verify this by shaking the computer and listening for
rattling sounds. Metallic parts or metal flakes can cause electrical shorts.
Avant de remettre l’ordinateur sous tension après remplacement d’une 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.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Safety notice 2
DANGER
Some standby batteries contain a small amount of nickel and cadmium. Do
not disassemble a standby battery, recharge it, throw it into fire or water, or
short-circuit it. Dispose of the battery as required by local ordinances or
regulations. Use only the battery in the appropriate parts listing. Use of an
incorrect battery can result in ignition or explosion of the battery.
Certaines batteries de secours contiennent du nickel et du cadmium. Ne les
démontez pas, ne les rechargez pas, ne les exposez ni au feu ni à l’eau. Ne
les mettez pas en court-circuit. Pour les mettre au rebut, conformez-vous à
la réglementation en vigueur. Lorsque vous remplacez la pile de sauvegarde
ou celle de l’horloge temps réel, veillez à n’utiliser que les modèles cités dans
la liste de pièces détachées adéquate. Une batterie ou une pile inappropriée
risque de prendre feu ou d’exploser.
Die Bereitschaftsbatterie, die sich unter dem Diskettenlaufwerk befindet,
kann geringe Mengen Nickel und Cadmium enthalten. Sie darf nicht
zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser
ausgesetzt werden. Bei der Entsorgung die örtlichen Bestimmungen für
Sondermüll beachten. Beim Ersetzen der Bereitschafts-oder Systembatterie
nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist.
Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen.

Alcune batterie di riserva contengono una piccola quantità di nichel e
cadmio. Non smontarle, ricaricarle, gettarle nel fuoco o nell’acqua né
cortocircuitarle. Smaltirle secondo la normativa in vigore (DPR 915/82,
successive disposizioni e disposizioni locali). Quando si sostituisce la
batteria dell’RTC (real time clock) o la batteria di supporto, utilizzare
soltanto i tipi inseriti nell’appropriato Catalogo parti. L’impiego di una
batteria non adatta potrebbe determinare l’incendio o l’esplosione della
batteria stessa.

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

Safety information

Safety notice 3
DANGER
The battery pack contains small amounts of nickel. Do not disassemble it,
throw it into 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.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Safety notice 4
DANGER
The lithium battery can cause a fire, an explosion, or a severe burn. Do not
recharge it, remove its polarized connector, disassemble it, heat it above
100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of
the battery as required by local ordinances or regulations. Use only the
battery in the appropriate parts listing. Use of an incorrect battery can result
in ignition or explosion of the battery.
La pile de sauvegarde contient du lithium. Elle présente des risques
d’incendie, d’explosion ou de brûlures graves. Ne la rechargez pas, ne
retirez pas son connecteur polarisé et ne la démontez pas. Ne l’exposez pas
à une temperature supérieure à 100°C, ne la faites pas brûler et n’en exposez
pas le contenu à l’eau. Mettez la pile au rebut conformément à la
réglementation en vigueur. Une pile inappropriée risque de prendre feu ou
d’exploser.
Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzünden,
explodieren oder schwere Verbrennungen hervorrufen. Batterien dieses
Typs dürfen nicht aufgeladen, zerlegt, über 100 C erhitzt oder verbrannt
werden. Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder
der zur richtigen Polung angebrachte Verbindungsstecker entfernt werden.
Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten.
Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der
Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu
Entzündung oder Explosion führen.

La batteria di supporto e una batteria al litio e puo incendiarsi, esplodere o
procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore
polarizzato, smontarla, riscaldarla ad una temperatura superiore ai 100
gradi centigradi, incendiarla o gettarla in acqua. Smaltirla secondo la
normativa in vigore (DPR 915/82, successive disposizioni e disposizioni
locali). L’impiego di una batteria non adatta potrebbe determinare
l’incendio o l’esplosione della batteria stessa.

La batería de repuesto es una batería de litio y puede provocar incendios,
explosiones o quemaduras graves. No la recargue, ni quite el conector
polarizado, ni la desmonte, ni caliente por encima de los 100°C (212°F), ni la
incinere ni exponga el contenido de sus celdas al agua. Deséchela tal como
dispone la normativa local.

Safety information

Safety notice 5
If the LCD breaks and the 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.

Lenovo E41-10/E41-15 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.

Safety information

Safety notice 8
DANGER
Before removing any FRU, turn off the computer, unplug all power cords
from electrical outlets, remove the battery pack, and then disconnect any
interconnecting cables.
Avant de retirer une unité remplaçable en clientèle, mettez le système hors
tension, débranchez tous les cordons d’alimentation des socles de prise de
courant, retirez la batterie et déconnectez tous les cordons d’interface.
Die Stromzufuhr muß abgeschaltet, alle Stromkabel aus der Steckdose
gezogen, der Akku entfernt und alle Verbindungskabel abgenommen sein,
bevor eine FRU entfernt wird.

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

Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de
las tomas de corriente eléctrica, quite la batería y, a continuación, desconecte
cualquier cable de conexión entre dispositivos.

Lenovo E41-10/E41-15 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 CENELEC EN 60
825 for Class 1 laser products.
If a CD-ROM drive, a DVD-ROM drive, or another laser device is installed, note
the following:

CAUTION
Use of controls or adjustments or performance of procedures other than
those 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.

Safety information

A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may
contain an embedded Class 3A or Class 3B laser diode. Note the following:
DANGER
Emits visible and invisible laser radiation when open. Do not stare into the
beam, do not view directly with optical instruments, and avoid direct
exposure to the beam.
Radiação por raio laser ao abrir. Não olhe fixo no feixe de luz, não olhe
diretamente por meio de instrumentos óticos e evite exposição direta com o
feixe de luz.

Rayonnement laser si carter ouvert. Évitez de fixer le faisceau, de le regarder
directement avec des instruments optiques, ou de vous exposer au rayon.
Laserstrahlung bei geöffnetem Gerät. Nicht direkt oder über optische
Instrumente in den Laserstrahl sehen und den Strahlungsbereich meiden.
Kinyitáskor lézersugár ! Ne nézzen bele se szabad szemmel, se optikai
eszközökkel. Kerülje a sugárnyalábbal való érintkezést!
Aprendo l’unità vengono emesse radiazioni laser. Non fissare il fascio, non
guardarlo direttamente con strumenti ottici e evitare l’esposizione diretta al
fascio.

Radiación láser al abrir. No mire fijamente ni examine con instrumental
óptico el haz de luz. Evite la exposición directa al haz.

Lenovo E41-10/E41-15 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://support.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://support.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.

Important service information

Use the following strategy to prevent unnecessary expense for replacing and
servicing FRUs:
• If you are instructed to replace an FRU, but the replacement does not solve
the problem, reinstall the original FRU before you continue.
• Some computers have both a processor board and a system board. If you are
instructed to replace either of them, and replacing one of them does not solve
the problem, reinstall that board, and then replace the other one.
• If an adapter or a device consists of more than one FRU, any of the FRUs may
be the cause of the error. Before replacing the adapter or device, remove the
FRUs one by one to see if the symptoms change. Replace only the FRU that
changed the symptoms.
Attention: The setup configuration on the computer you are servicing may have
been customized. Running Automatic Configuration may alter the settings. Note
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
copying, saving, or formatting. If you select an incorrect drive, data or programs
can be overwritten.

Important notice for replacing a system board
Some components mounted on a system board are very sensitive. Improper
handling can cause damage to those components, and may cause a system
malfunction.
Attention: When handling a system board:
• Do not drop the system board or apply any excessive force to it.
• Avoid rough handling of any kind.
• Avoid bending the system board and hard pushing to prevent cracking at
each BGA (Ball Grid Array) chipset.

Lenovo E41-10/E41-15 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 numbers with the same fit and function are
identified with unique FRU part numbers.
Lenovo plans to transit to RoHS compliance well before the implementation date
and expects its suppliers to be ready to support Lenovo’s requirements and
schedule in the EU. Products sold in 2005 and 2006 will contain some RoHS
compliant FRUs. The following statement pertains to these products and any
product Lenovo produces containing RoHS compliant FRUs.
RoHS compliant FRUs have unique FRU part numbers. Before or after the RoHS
implementation date, failed RoHS compliant parts must always be replaced 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

Replacement
FRU

Non-RoHS

Can be Non-RoHS

Non-RoHS

Can be RoHS

Non-RoHS

Can sub to RoHS

RoHS

Must be RoHS

Current or
original part

Replacement
FRU

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.

General checkout

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 nothing to do with a hardware defect, such as cosmic radiation,
electrostatic discharge, or software errors. Consider replacing an FRU
only when a problem recurs. If you suspect that an FRU is defective,
clear the error logs and run the test again. If the error does not recur, do
not replace the FRU.
• Be careful not to replace a nondefective FRU.

Lenovo E41-10/E41-15 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.

General checkout

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 22
• “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)

+20

2
1

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 E41-10/E41-15” on page 27.
Note: Noise from the AC adapter does not always indicate a defect.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

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.
Perform operational charging. If the battery status indicator or icon does not
light on, remove the battery pack and let it return to room temperature. Reinstall
the battery pack. If the charge indicator or icon is still off, replace the battery
pack.
If the charge indicator still does not light on, replace the system board. Then
reinstall the battery pack. If it is still not charged, go to the next section.

Checking the battery pack
Battery charging does not start until the Power Meter shows that less than 95%
of the total power remains; under this condition the battery pack can charge to
100% of its capacity. This protects the battery pack from being overcharged or
from having a shortened life.
To check your battery, move your cursor to the Power Meter icon in the icon tray
of the Windows® taskbar and wait for a moment (but do not click it), and the
percentage of battery power remaining is displayed. To get detailed information
about the battery, double-click the Power Meter icon.
Note: If the battery pack becomes hot, it may not be able to be charged. Remove
it from the computer and leave it at room temperature for a while. After it cools
down, reinstall and recharge it.

Related service information

Related service information
This chapter presents the following information:
• “Restoring the factory contents by using Recovery Disc Set” on page 23
• “Passwords” on page 24
• “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.

Lenovo E41-10/E41-15 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.

Related service information

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

Putting the computer to sleep or shutting it down
When you have finished working with your computer, you can put it to sleep or
shut it down.

Putting your computer to sleep
If you will be away from your computer for only a short time, put the computer
to sleep.
When the computer is in sleep mode, you can quickly wake it to resume use,
bypassing the startup process.
To put the computer to sleep, do one of the following:
• Close the display lid.
• Press the power key.
• Preform the following based on the operating system.
For the Windows 7 operating system:
Click Start

→ Sleep.

For the Windows 10 operating system:
Move the cursor to the lower-left corner, and then select the Start button. Select
Power

→ Sleep.

Note: Put your computer to sleep before you move it. Moving your computer
while the hard disk drive is spinning can damage the hard disk, causing loss of
data.
To wake the computer, do one of the following:
• Press any key on the keyboard.
• Press the power key.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Shutting down the computer
If you are not going to use your computer for a long time, shut it down.
To shut down your computer, do one of the following:
• For the Windows 7 operating system:
Click Start

→ Shut down.

• For the Windows 10 operating system:
Move the cursor to the lower-left corner, and then select the Start button.
Select Power

→ Shut down.

• Right-click the Start button in the lower-left corner and select Shut down or
sign out → Shut down.

Lenovo E41-10/E41-15

Lenovo E41-10/E41-15
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
• “FRU replacement notices” on page 32
• “Removing and replacing an FRU” on page 33
• “Locations” on page 62
• “Parts list” on page 65

Specifications
The following table lists the specifications of the Lenovo E41-10/E41-15:
Table 1. Specifications
E41-10
Form Factor
Dimensions
Weight
LCD size
Processor

E41-15

Appr. 340 mm × 245 mm × 22.7 mm
Appr. 2.1 kg
14.0-inch

Windows® 7: Click Start, right-click Computer, and then click Properties.
Windows® 10: Click Start, right-click File Explorer, and then click Properties.
Memory
Type and speed
DDR3L-1333 MHz
DDR3L-1600 MHz
Maximum
4 GB
4 GB
supported
capacity
Slots
SODIMM × 1
Hard disk drive
Form factor
2.5-inch, 9.5 mm/7 mm
Capacity
250 GB/500 GB/1 TB
Interface
SATA III
Optical drive (on select models)
Form factor
9.0 mm
Type
Rambo
Display
Display resolution
16:9 (1366 × 768 pixels HD)
(LCD)
LCD backlight
LED

Lenovo E41-10/E41-15 Hardware Maintenance Manual

I/O Ports
USB
Audio
Communication
Video/Audio
Video
Memory card slot
Battery pack
Type
Cells/Capacity

USB 3.0 × 1, USB 2.0 × 2; or USB 3.0 × 1, USB 2.0 × 1
Combo audio jack × 1
RJ-45 × 1
HDMI slot × 1
VGA port × 1
4 in 1 slot × 1 (SD/SDHC/SDXC/MMC)
Li-ion battery pack
4 cells, 32 Wh or 4 cells, 41 Wh or 6 cells, 48 Wh

Note: The capacity given here is the typical or average capacity as measured in a
specific test environment. Capacities measured in other environments may
differ but are no lower than the rated capacity (see product label).

AC power adapter
Input
Output voltage
Power
Miscellaneous
Camera (on
select models)
Security
Bus architecture

100-240 V, 50-60 Hz
20 V DC
45 W
0.3 M
Kensington Mini Security slot × 1
1333MHz DDR3L SDRAM 1600MHz DDR3L SDRAM

CMOS
PCI Express bus
8MB

Lenovo E41-10/E41-15

Status indicators
The system status indicators below show the computer status:
E41-10/E41-15:

a b

Table 2. Status indicators
Power status
indicator
Indicator
Power status
indicator

Indicator status

Meaning

On (solid white)

The computer is powered on.

Blinking

The computer is in sleep mode.

Off

The computer is powered off.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Table 2. Status indicators (continued)
Battery/
Charging
status
indicator
AC power
adapter status

Disconnected

Connected

Indicator status

Meaning

Off

The computer is in sleep mode or
turned off; The battery has more than
20% charge.

Solid amber

The battery has between 5% and 20%
charge.

Fast blinking
amber

The battery has between 1% and 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.

Solid white

The battery has more than 80% charge,
charging will continue until the battery
is fully charged.

Lenovo E41-10/E41-15

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 3. Hotkeys
Mutes/unmutes the sound.

Enables/disables airplane
mode.

Decreases the volume level.

Enables/disables camera.

Increases the volume level.

Locks/unlocks the LCD
screen.

Enables/disables
microphone.

Enables the external
projector or dangles the
external display.

Refreshes page.

Decreases display
brightness.

Enables/disables the touch
pad.

Increases display
brightness.

Lenovo E41-10/E41-15 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.
• Carefully remove screws for reuse when replacing FRUs.
• 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.

Lenovo E41-10/E41-15

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 62.
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 sensitive to, and can be damaged by, electrostatic
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.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

1010 Keyboard
Figure 1. Removal steps of keyboard
Remove the screws a .

Step Screw (quantity)

Color

Torque

Black

1.85+/-0.15 kgfcm

M2.5 × 6 mm, flat-head, nylokcoated(3)

Loosen the keyboard with fingers in the direction shown by arrow b .

Lenovo E41-10/E41-15

Figure 1. Removal steps of keyboard (continued)
Lift the keyboard a little c. Pull the keyboard connector slot cover upward as
shown by arrow d, detach the keyboard cable from the keyboard connector in
the direction shown by arrow e.

d
e

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

Lenovo E41-10/E41-15 Hardware Maintenance Manual

1020 Optical drive
For access, remove this FRU:
• “1010 Keyboard” on page 34
Figure 2. Removal steps of optical drive
Pull the optical drive out in the direction shown by arrow a.

Lenovo E41-10/E41-15

1030 Base cover
For access, remove these FRUs in order:
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
Figure 3. Removal steps of base cover
Loosen the screws a b that secure the compartment cover.

a b

b
b

Step

Screw (quantity)

Color

Torque

M2.5 × 6 mm, flat-head, nylokcoated (8)
M2 × 2 mm, flat-head, nylokcoated (2)

Black

2.0~2.5 kgfcm

Black

1.0~1.5 kgfcm

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Figure 3. Removal steps of base cover (continued)
Remove the screw c .

Step

Screw (quantity)

Color

Torque

M2.5 × 6 mm, flat-head, nylokcoated (1)

Black

2.0~2.5 kgfcm

Lenovo E41-10/E41-15

1040 Battery pack
For access, remove these FRUs in order:
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37

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

Figure 4. Removal steps of battery pack
Unplug the battery connector in the direction shown by arrow a .

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Figure 4. Removal steps of battery pack (continued)
Remove the screws b. Remove the battery pack in the direction shown by
arrow c.

b
b
c

Step

Screw (quantity)

Color

Torque

M2 × 5 mm, flat-head, nylokcoated (2)

Silver

1.5~2.0 kgfcm

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

Lenovo E41-10/E41-15

1050 Hard disk drive
For access, remove these FRUs in order:
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39
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 5. Removal steps of hard disk drive
Detach the IO board connector in the direction shown by arrows a , b .

Remove the frame fixing screws c .
c
c

c
c

Step

Screw (quantity)

Color

Torque

M2 × 4 mm, flat-head, nylok-coated (3)

Silver

1.5~2.0 kgfcm

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Figure 5. Removal steps of hard disk drive (continued)
Detach the HDD connector in the direction shown by arrow d. Remove the
hard disk drive from the slot in the direction shown by arrow e.

e
d

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

f
f
Step

Screw (quantity)

Color

Torque

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

Silver

3.0+/-0.3 kgfcm

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

Lenovo E41-10/E41-15

1060 DIMM
For access, remove these FRUs in order
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39
Figure 6. Removal steps of DIMM
Release the two latches on both edges of the socket at the same time in the
direction shown by arrows a, and then unplug the DIMM in the direction
shown by arrow b.

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.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

1070 PCI Express Mini Card for wireless LAN/WAN
For access, remove these FRUs in order
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39

Important:
The preinstalled WLAN module may only be replaced with a Lenovo
approved module in order to comply with FCC and IC regulations. Refer to
Table 4 “Parts list—Overall” on page 67 for Lenovo part numbers for the
approved modules.
Figure 7. Removal steps of PCI Express Mini Card for wireless LAN/WAN
Remove the WLAN card sponge.

Lenovo E41-10/E41-15

Figure 7. Removal steps of PCI Express Mini Card for wireless LAN/WAN (continued)
Disconnect the two wireless LAN cables (black, white) a, and then remove the
screw b.

b
a

In step a, 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 a .
wireless LAN card in some models may have 3 cables in step a.
Step

Screw (quantity)

Color

Torque

M2 × 3.0 mm, flat-head, nylok-coated
(1)

Black

1.0~1.5 kgfcm

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Figure 7. Removal steps of PCI Express Mini Card for wireless LAN/WAN (continued)
Remove the card in the direction shown by arrow c .

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.

Lenovo E41-10/E41-15

1080 Fan assembly and Heat Sink assembly
For access, remove these FRUs in order
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39
Figure 8. Removal steps of fan assembly and heat sink assembly
Unplug the fan connector in the direction shown by arrow a. Remove the
screw b.

Step

Screw (quantity)

Color

Torque

M2 × 5 mm, Phillips head, nylokcoated (1)
fan---mb---log up & fan---log up

Silver

1.5~2.0 kgf*cm

When installing: Make sure that the connector is attached firmly.
Remove the fan in the direction shown by arrow c. Be careful not to damage
the connector.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Figure 8. Removal steps of fan assembly and heat sink assembly (continued)
Remove the screws d.

d
d

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, Phillips head, nylokcoated (3) cpu thermal module---cpu
plate & vga thermal module---MB

Black

1.0~1.5 kgf*cm

Lift the heat sink in the direction shown by arrows e .

Lenovo E41-10/E41-15

1090 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 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39
• “1050 Hard disk drive” on page 41
• “1060 DIMM” on page 43
• “1070 PCI Express Mini Card for wireless LAN/WAN” on page 44
• “1080 Fan assembly and Heat Sink assembly” on page 47

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Figure 9. Removal steps of system board (continued)
Remove the screws a .
a

Step Screw (quantity)

Color

Torque

Black

1.0~1.5 kgfcm

M2 × 3 mm, flat-head, nylok-coated (2)

Unplug DC-IN cable connector in the direction shown by arrow c , speakers
connector in the direction shown by arrow b , disconnect LCD connector in the
direction shown by arrow d .

c
b
d

Lenovo E41-10/E41-15

Figure 9. Removal steps of system board (continued)
Detach touch pad connector in the direction shown by arrow e .

When installing: Make sure that all the connectors are attached firmly.
Remove the system board in the direction shown by arrow f.

c
b
a

When installing: When attaching the system board to the base cover, adjust the
placement of the USB, RJ-45, HDMI 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.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

1100 LCD unit
For access, remove these FRUs in order
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39
• “1050 Hard disk drive” on page 41
• “1060 DIMM” on page 43
• “1070 PCI Express Mini Card for wireless LAN/WAN” on page 44
• “1080 Fan assembly and Heat Sink assembly” on page 47
• “1090 System board” on page 49
Figure 10. Removal steps of LCD unit
Release the cables from the cable guides in the direction shown by arrows.

Remove the screws a.
a
a
a
a a

Step

Screw (quantity)

M2.5 × 6 mm, flat-head, nylok- Black
coated (5)

Color

Torque
2.0~2.5 kgfcm

Lenovo E41-10/E41-15

Figure 10. Removal steps of LCD unit (continued)
When installing:
• Route the antenna cables along the cable guides. As you route the cables,
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.
• Make sure that the LCD connector is attached firmly and make sure that you
do not pinch the antenna cables when you attach the LCD assembly. Route
the LCD cable along the cable guides.
Detach the LCD unit from the upper case.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

1110 Speakers, base cover, IO board, and DC-IN
For access, remove these FRUs in order:
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39
• “1050 Hard disk drive” on page 41
• “1060 DIMM” on page 43
• “1070 PCI Express Mini Card for wireless LAN/WAN” on page 44
• “1080 Fan assembly and Heat Sink assembly” on page 47
• “1090 System board” on page 49
• “1100 LCD unit” on page 52
Figure 11. Speakers, base cover, IO board, and DC-IN
Remove the speakers in the direction shown by arrows a .
a
a

Remove the DC-IN in the direction shown by arrow a.
a

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

Lenovo E41-10/E41-15

Figure 11. Speakers, base cover, IO board, and DC-IN (continued)
Remove the screw a. Remove the IO board in the direction shown by arrow b.
a
b

Step

Screw (quantity)

Color

Torque

M2 × 4 mm, flat-head,
nylokcoated (1)

Silver

1.5~2.0 kgfcm

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Applying labels to the base cover
The new base cover FRU is shipped with a kit containing labels of several kinds.
Apply those labels when you replace the base cover. For labels which are not
shipped with the new base cover, peel them from the replaced base cover and
adhere them to the new one.
Note: If the Certificate of Authenticity (COA) label (b) is attached to a replaced
part, return the replaced part to the customer, or provide a letter to the customer
stating the original label part number, serial number, and product key.

a
b
c

e
f

g
i h

The following letter shows the correct location of each label. Not all labels are
attached on the part you are servicing.
GML label
Adapter label
Rating label
Rating print label
KCC label
Indonesia rating label
WLAN/BT Label for Malaysia/Indonesia
WLAN/BT Label for South Africa
WLAN/BT Label for Isarel/US/CA/TW
WLAN/BT Label for Brazil

Lenovo E41-10/E41-15

1120 LCD front bezel
For access, remove these FRUs in order:
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39
• “1050 Hard disk drive” on page 41
• “1060 DIMM” on page 43
• “1070 PCI Express Mini Card for wireless LAN/WAN” on page 44
• “1080 Fan assembly and Heat Sink assembly” on page 47
• “1090 System board” on page 49
• “1100 LCD unit” on page 52
• “1110 Speakers, base cover, IO board, and DC-IN” on page 54
Figure 12. Removal steps of LCD front bezel
Remove the LCD front bezel in the direction by arrows a .

a
a
a

Lenovo E41-10/E41-15 Hardware Maintenance Manual

1130 LCD panel, LCD cable and hinges
For access, remove these FRUs in order:
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39
• “1050 Hard disk drive” on page 41
• “1060 DIMM” on page 43
• “1070 PCI Express Mini Card for wireless LAN/WAN” on page 44
• “1080 Fan assembly and Heat Sink assembly” on page 47
• “1090 System board” on page 49
• “1100 LCD unit” on page 52
• “1110 Speakers, base cover, IO board, and DC-IN” on page 54
• “1120 LCD front bezel” on page 57
Figure 13. LCD panel, LCD cable and hinges
Remove screws a .
a

Lenovo E41-10/E41-15

Figure 13. LCD panel, LCD cable and hinges (continued)
Turn over the LCD module in the direction as shown by arrow b . Disconnect
the connector by arrow c to remove the LCD panel.

Step

Screw (quantity)

Color

Torque

M2.0 × 3 mm , flat-head, nylok-coated
(4)

Black

1.0~1.5 kgfcm

When installing: Make sure that the LCD panel connector is attached firmly.
Remove screws a and b .
b

a a a

Step

Screw (quantity)

Color

Torque

M2.5 X 2.5, flat-head,nylok-coated (6)
M2.0 X 3, flat-head,nylok-coated (2)

Black
Black

2.0~2.5 kgfcm
1.0~1.5 kgfcm

Lenovo E41-10/E41-15 Hardware Maintenance Manual

1140 Integrated camera
For access, remove these FRUs in order:
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39
• “1050 Hard disk drive” on page 41
• “1060 DIMM” on page 43
• “1070 PCI Express Mini Card for wireless LAN/WAN” on page 44
• “1080 Fan assembly and Heat Sink assembly” on page 47
• “1090 System board” on page 49
• “1100 LCD unit” on page 52
• “1110 Speakers, base cover, IO board, and DC-IN” on page 54
• “1120 LCD front bezel” on page 57
• “1130 LCD panel, LCD cable and hinges” on page 58
Figure 14. Removal steps of integrated camera
Note: The integrated camera is stuck on the top center of the LCD cover.
Unplug the connector in the direction shown by arrow a , remove the
integrated camera from the LCD cover in the direction shown by arrow b .

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.

Lenovo E41-10/E41-15

1150 Antenna assembly and LCD cover
For access, remove these FRUs in order:
• “1010 Keyboard” on page 34
• “1020 Optical drive” on page 36
• “1030 Base cover” on page 37
• “1040 Battery pack” on page 39
• “1050 Hard disk drive” on page 41
• “1060 DIMM” on page 43
• “1070 PCI Express Mini Card for wireless LAN/WAN” on page 44
• “1080 Fan assembly and Heat Sink assembly” on page 47
• “1090 System board” on page 49
• “1100 LCD unit” on page 52
• “1110 Speakers, base cover, IO board, and DC-IN” on page 54
• “1120 LCD front bezel” on page 57
• “1130 LCD panel, LCD cable and hinges” on page 58
• “1140 Integrated camera” on page 60
Figure 15. Removal steps of antenna assembly and LCD cover
Peel off the adhesive tapes securing the antenna boards, release the cables from
the cable guide, and then remove the antenna assembly in the direction shown
by arrows a .

a
a

When installing: Route the antenna cables along the cable guides and secure the
antenna boards with adhesive tapes. As you route the cables, 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.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Locations
Front view
a
b
c
d
e
f
g

Integrated camera (on select models)
Wireless LAN antennas
Computer display
Built-in microphone
Memory card slot
Touch pad
Power Key

a
b
c

d
g

Lenovo E41-10/E41-15

Bottom and Left-side view
a
b
c
d
e
f
g
h
i

AC power adapter jack
Ventilation slots
VGA port
RJ-45 port
HDMI port
USB 3.0 port
Combo audio jack
Ventilation slots
Speakers

i
h
g

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Right-side view
a
b
c
d

Novo button
USB 2.0 port (on select models)
Optical drive
Kensington Mini Security slot

d
c
b
a

Lenovo E41-10/E41-15

Parts list
This section presents the following service parts:
• “Overall” on page 66
• “LCD FRUs” on page 70
• “Keyboard” on page 72
• “Miscellaneous parts” on page 77
• “AC adapters” on page 78
• “Power cords” on page 80

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

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Overall
1

8
3

c
a

10
b

11
12

Lenovo E41-10/E41-15

Table 4. Parts list—Overall
No.

FRU

LCD unit (see “LCD FRUs” on
page 70.)
Keyboard (see “Keyboard” on
page 72.)
FAN C E41-10
Heatsink C E41-10
Heatsink C E41-15
HDD, 250G 5400rpm, WD
WD2500LPCX-24VHAT0
HDD, 500G 5400rpm,
ST500LT012 6G 7mm 5.4K 500G
HDD
HDD, 500G 5400rpm, WD
WD5000LPCX-24VHAT0
HDD, 500G 5400rpm,
MQ01ABF050 6G 7mm 5.4K
500G HDD
HDD, 1T 5400rpm,
ST1000LM024 6G 9.5mm 5.4K 1T
HDD
HDD, 1T 5400rpm, WD10JPCX24UE4T0 6G 9.5mm 5.4K 1T
HDD
HDD, 1T 5400rpm, TSB
MQ01ABD100 6G 9.5mm 5.4K 1T
HDD
Upper case C E41-10 W/TP
Lower Case USB*2 C E41-10
Lower Case USB*3 C E41-10
Speaker C E41-10 STEREO 4P
Speaker C E41-10 MONO 2P
DDR3L Memory, DDR3L
SoDIMM 2G, 2GB D3L S
M471B5674EB0-YK0
DDR3L Memory, DDR3L
SoDIMM 2G, Hynix
HMT425S6CFR6A-PB 2GB
DDR3L Memory, DDR3L
SoDIMM 2G, 2GB D3L S
MT4KTF25664HZ-1G9P1
DDR3L Memory, DDR3L
SoDIMM 2G, Ramaxel
RMT3190MN76F8F-1600
DDR3L Memory, DDR3L
SoDIMM 2G, M471B5173EB0YK0 1600 4GB

2
3
4
4
5
5

5
5

6
7
7
8
8
9

FRU no.

CRU ID E41-10

E41-15

5F10L58139
5H40L58162
5H40L58696
5H20J35763

N
N
N
N

●
●
●

●
●

16200383

●

5H20J35762

●

16200433

●

16200385

●

16200393

●

16200429

●

5CB0L58156
5CB0L58158
5CB0L58159
5SB0L58146
5SB0L58142
5M30K59779

N
N
N
N
N
N

●
●
●
●
●
●

5M30G99881

●

5M30K59781

●

5M30J33428

●

5M30G18425

●

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Table 4. Parts list—Overall (continued)
No.

FRU

FRU no.

CRU ID E41-10

DDR3L Memory, DDR3L
SoDIMM 2G, 4GB D3L S
HMT451S6DFR8A-PB
DDR3L Memory, DDR3L
SoDIMM 2G, 4GB D3L S
MT8KTF51264HZ-1G9P1
DDR3L Memory, DDR3L
SoDIMM 2G, 4GB D3L S
RMT3170MP68F9F-1600
ODD, 9.0 Rambo, HLDS GUE0N
9.0mm Slim Tray Rambo ODD
ODD, 9.0 Rambo, PLDS DA8AESH 9.0mm Slim Tray Rambo
ODD
ODD, 9.0 Rambo, TSST SU228HB 9.0mm Slim Tray Rambo
ODD
Dummy ODD C E41-10
DC-IN Cable C E41-10
WLAN, WIFI 1x1AC+BT, Intel
3165 1x1AC+BT PCIE M.2
WLAN
WLAN, WIFI 1x1AC+BT, Ltn
NFA435 1x1AC+BT4.0 PCIE M.2
WLAN
WLAN, WIFI 1x1AC+BT, Cbt
RTL8821AE 1x1AC+BT4.0 PCIE
M.2 WLAN
WLAN, WIFI 1x1AC+BT, Ltn
NFA435A 1x1AC+BT4.0 PCIE
M.2 WLAN
USB/B+IO/B W/FFC 2SET C
E41-10
MB C E41-10 A1020 NOK
MONO
MB C E41-10 A1020 WIN MONO
MB C E41-10 A1020 NOK
STEREO
MB C E41-10 A1020 WIN
STEREO
MB C E41-15 A4 3350 NOK
MONO
MB C E41-15 A4 3350 WIN
MONO
MB C E41-15 A4 3350 NOK
STEREO

5M30K59780

●

5M30K59782

●

5M30L20980

●

5DX0J46488

●

5DX0L08424

●

5DX0L08425

●

5M20L58163
5C10L58165
SW10H24486

*
N
N

●
●
●

●
●

SW10A11641

●

SW10A11648

●

SW10K97461

5C50L58138

●

5B20L58154

●

5B20L58152
5B20L58153

N
N

●
●

5B20L58151

●

5B20L58682

●

5B20L58692

●

5B20L58695

●

10
10

10
11
12

13
14
14
14
14
14
14
14

E41-15

●

Lenovo E41-10/E41-15

Table 4. Parts list—Overall (continued)
No.

FRU

FRU no.

CRU ID E41-10

MB C E41-15 A4 3350 WIN
STEREO
MB C E41-15 E1 7010 NOK
MONO
MB C E41-15 E1 7010 WIN
MONO
MB C E41-15 E1 7010 NOK
STEREO
MB C E41-15 E1 7010 WIN
STEREO
MB C E41-15 A6 7310 NOK
MONO
MB C E41-15 A6 7310 WIN
MONO
MB C E41-15 A6 7310 NOK
STEREO
MB C E41-15 A6 7310 WIN
STEREO
MB C E41-15 A8 7410 NOK
MONO
MB C E41-15 A8 7410 WIN
MONO
MB C E41-15 A8 7410 NOK
STEREO
MB C E41-15 A8 7410 WIN
STEREO
Battery, 4cell 32Wh Li-Cylinder,
Gx1 SY L15S4A01
14.4V32Wh4cell btyC
Battery, 4cell 32Wh Li-Cylinder,
Gx1 SP/L L15M4A01
14.4V32Wh4cell btyC
Battery, 4cell 32Wh Li-Cylinder,
Gx1 LG L15L4A01
14.4V32Wh4cell btyC
RTC Battery C E41

5B20L58689

●

5B20L58694

●

5B20L58683

●

5B20L58693

●

5B20L58688

●

5B20L58686

●

5B20L58687

●

5B20L58690

●

5B20L58685

●

5B20L58691

●

5B20L58684

●

5B20L58681

●

5B20L58680

●

5B10L12769

●

5B10L12770

●

5B10L12771

●

5B10L76721

●

14
14
14
14
14
14
14
14
14
14
14
14
15

E41-15

Lenovo E41-10/E41-15 Hardware Maintenance Manual

LCD FRUs
In Lenovo E41-10/E41-15, there is following type of LCDs.
1

4
5
5

Lenovo E41-10/E41-15

Table 5. Parts list
No.

FRU

1
1
2

LCD Bezel C E41-10 0.3M
LCD Bezel C E41-10 NO CAM
Panel, 14.0'' HD AG TN 3.0mm Slim, LG LP140WHUTPH1 HDT AG S NB
Panel, 14.0'' HD AG TN 3.0mm Slim, AUO B140XTN02.E
HW0A HD AG S NB
Panel, 14.0'' HD AG TN 3.0mm Slim, IN N140BGA-EA3
HDT AG S NB
HINGE L+R C E41-10
CAMERA 0.3M C E41-10
Camera, 0.3M, BIS BNCKVTKTL 0.3M NB camera
Camera, 0.3M, CCY CNFF026 0.3M NB camera
Camera, 0.3M, AWA AM-VS080 0.3M NB camera
Camera, 0.3M, AVC HAA-584B05 0.3M NB camera
EDP CABLE FOR W/CAMERA C E41-10
EDP CABLE FOR W/O CAM C E41-10
LCD COVER C E41-10

2
2
3
4
4
4
4
4
5
5
6

FRU no.

CRU
ID
5B30L58157 N
5B30L58150 N
5D10K81464 N
5D10G95364 N
5D10K85755 N
5H50L58147
5C20L58149
SC20K88169
SC20K88168
SC20K88167
SC20K88166
5C10L58167
5C10L58160
5CB0L58141

N
N
N
N
N
N
N
N
N

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Keyboard
Table 7. Parts list—Keyboard
Language

P/N

Chicony
Normal

keyboard
E41-10

Sunrex
Normal

English

CRU
ID
5N20L25825 *

U.K. English

5N20L25790

Italian

5N20L25796

Spanish

5N20L25817

Turkish

5N20L25834

Thai

5N20L25848

Portuguese

5N20L25839

Latin

5N20L25785

Canadian English&French

5N20L25836

Korean

5N20L25854

Traditional Chinese

5N20L25799

Russian

5N20L25775

French

5N20L25813

German

5N20L25841

Arabic

5N20L25809

Brazilian

5N20L25861

Japanese

5N20L25859

Dutch

5N20L25786

Greek

5N20L25824

Hebrew

5N20L25805

Hungarian

5N20L25823

Four Nordic countries

5N20L25789

Belgian

5N20L25835

Icelandic

5N20L25778

Slovenian

5N20L25808

Swiss

5N20L25791

International English

5N20L25772

Czechoslovakian

5N20L25795

Bulgarian

5N20L25792

Indian

5N20L25831

French-Arabic

5N20L25812

Ukrainian

5N20L25832

English

5N20L25781

U.K. English

5N20L25860

Italian

5N20L25806

Spanish

5N20L25797

Turkish

5N20L25855

Thai

5N20L25844

Lenovo E41-10/E41-15

Table 7. Parts list—Keyboard (continued)
Language

P/N
Portuguese

CRU
ID
5N20L25862 *

Latin

5N20L25794

Canadian English&French

5N20L25810

Korean

5N20L25826

Traditional Chinese

5N20L25770

Russian

5N20L25787

French

5N20L25800

German

5N20L25802

Arabic

5N20L25773

Brazilian

5N20L25793

Japanese

5N20L25827

Dutch

5N20L25818

Greek

5N20L25852

Hebrew

5N20L25840

Hungarian

5N20L25784

Four Nordic countries

5N20L25858

Belgian

5N20L25838

Icelandic

5N20L25774

Slovenian

5N20L25833

Swiss

5N20L25803

International English

5N20L25788

Czechoslovakian

5N20L25814

Bulgarian

5N20L25801

Indian

5N20L25821

French-Arabic

5N20L25845

Ukrainian

5N20L25780

English

5N20L25822

U.K. English

5N20L25807

Italian

5N20L25779

Spanish

5N20L25847

Turkish

5N20L25776

Thai

5N20L25816

Doking

Portuguese

5N20L25857

Normal

Latin

5N20L25851

Canadian English&French

5N20L25783

Korean

5N20L25864

Traditional Chinese

5N20L25815

Russian

5N20L25804

French

5N20L25820

German

5N20L25769

Sunrex
Normal
(continued)

keyboard
E41-10
(continued)

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Table 7. Parts list—Keyboard (continued)
Language

keyboard
E41-10
(continued)

keyboard
E41-15

P/N
Arabic

CRU
ID
5N20L25830 *

Brazilian

5N20L25798

Japanese

5N20L25863

Dutch

5N20L25782

Greek

5N20L25843

Hebrew

5N20L25771

Hungarian

5N20L25811

Four Nordic countries

5N20L25853

Doking
Belgian
Normal
(continued) Icelandic
Slovenian

Chicony
Normal

5N20L25850
5N20L25846
5N20L25849

Swiss

5N20L25819

International English

5N20L25837

Czechoslovakian

5N20L25777

Bulgarian

5N20L25829

Indian

5N20L25856

French-Arabic

5N20L25828

Ukrainian

5N20L25842

English

5N20L25825

U.K. English

5N20L25790

Italian

5N20L25796

Spanish

5N20L25817

Turkish

5N20L25834

Thai

5N20L25848

Portuguese

5N20L25839

Latin

5N20L25785

Canadian English&French

5N20L25836

Korean

5N20L25854

Traditional Chinese

5N20L25799

Russian

5N20L25775

French

5N20L25813

German

5N20L25841

Arabic

5N20L25809

Brazilian

5N20L25861

Japanese

5N20L25859

Dutch

5N20L25786

Greek

5N20L25824

Hebrew

5N20L25805

Hungarian

5N20L25823

Four Nordic countries

5N20L25789

Lenovo E41-10/E41-15

Table 7. Parts list—Keyboard (continued)
Language

P/N
Belgian

CRU
ID
5N20L25835 *

Icelandic

5N20L25778

Slovenian

5N20L25808

Swiss

5N20L25791

Chicony
International English
Normal
(continued) Czechoslovakian
Bulgarian

keyboard
E41-15
(continued)

Sunrex
Normal

5N20L25772
5N20L25795
5N20L25792

Indian

5N20L25831

French-Arabic

5N20L25812

Ukrainian

5N20L25832

English

5N20L25781

U.K. English

5N20L25860

Italian

5N20L25806

Spanish

5N20L25797

Turkish

5N20L25855

Thai

5N20L25844

Portuguese

5N20L25862

Latin

5N20L25794

Canadian English&French

5N20L25810

Korean

5N20L25826

Traditional Chinese

5N20L25770

Russian

5N20L25787

French

5N20L25800

German

5N20L25802

Arabic

5N20L25773

Brazilian

5N20L25793

Japanese

5N20L25827

Dutch

5N20L25818

Greek

5N20L25852

Hebrew

5N20L25840

Hungarian

5N20L25784

Four Nordic countries

5N20L25858

Belgian

5N20L25838

Icelandic

5N20L25774

Slovenian

5N20L25833

Swiss

5N20L25803

International English

5N20L25788

Czechoslovakian

5N20L25814

Bulgarian

5N20L25801

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Table 7. Parts list—Keyboard (continued)
Language

P/N
Indian
Sunrex
Normal
French-Arabic
(continued) Ukrainian

keyboard
E41-15
(continued)

Doking
Normal

CRU
ID
5N20L25821 *
5N20L25845
5N20L25780

English

5N20L25822

U.K. English

5N20L25807

Italian

5N20L25779

Spanish

5N20L25847

Turkish

5N20L25776

Thai

5N20L25816

Portuguese

5N20L25857

Latin

5N20L25851

Canadian English&French

5N20L25783

Korean

5N20L25864

Traditional Chinese

5N20L25815

Russian

5N20L25804

French

5N20L25820

German

5N20L25769

Arabic

5N20L25830

Brazilian

5N20L25798

Japanese

5N20L25863

Dutch

5N20L25782

Greek

5N20L25843

Hebrew

5N20L25771

Hungarian

5N20L25811

Four Nordic countries

5N20L25853

Belgian

5N20L25850

Icelandic

5N20L25846

Slovenian

5N20L25849

Swiss

5N20L25819

International English

5N20L25837

Czechoslovakian

5N20L25777

Bulgarian

5N20L25829

Indian

5N20L25856

French-Arabic

5N20L25828

Ukrainian

5N20L25842

Lenovo E41-10/E41-15

Miscellaneous parts
Table 8. Parts list—Miscellaneous parts
FRU
System miscellaneous parts:
• (a) HDD BRACKET C E41-10
• (b) ODD BRACKET C E41-10
• (c) ODD BEZEL C E41-10
• (d) WLAN SPONGE C E41-10

P/N
5B40L58148
5B40L58155
5B30L58164
5T10L58143

CRU ID E41-10

●

E41-15

●

Note: Italicized letters in parentheses
are references to the exploded view in
“Overall” on page 71.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

AC adapters
Table 9. Parts list—3-pin AC adapters

FRU

P/N

Adapter, 45W 3 pin socket and plug (for India),
ADLX45NCC3A 20V2.25A adap R

SA10L02297

CRU
ID
*

Adapter, 45W 3 pin socket and plug (for India),
ADLX45NAC3A 20V2.25A adap R

SA10L02298

Adapter, 45W wall mount with round plug, Delta ADP-45DW
AA 20V2.25A adapter

5A10H43620 *

Adapter, 45W wall mount with round plug, Delta ADP-45DW
JA 20V2.25A adapter

5A10H43623 *

Adapter, 45W wall mount with round plug, Delta ADP-45DW
BA 20V2.25A adapter

5A10H43630 *

Adapter, 45W wall mount with round plug, Delta ADP-45DW
DA 20V2.25A adapter

5A10H43621 *

Adapter, 45W wall mount with round plug, Delta ADP-45DW
HA 20V2.25A adapter

5A10H43627 *

Adapter, 45W wall mount with round plug, Delta ADP-45DW
GA 20V2.25A adapter

5A10H43617 *

Adapter, 45W wall mount with round plug, Delta ADP-45DW
EA 20V2.25A adapter

5A10H43626 *

Adapter, 45W wall mount with round plug, Delta ADP-45DW
CA 20V2.25A adapter

5A10H43632 *

Adapter, 45W wall mount with round plug, Delta ADP-45DW
KA 20V2.25A adapter

5A10H43624 *

Adapter, 45W wall mount with round plug, Liteon PA-145055LN 20V2.25A adapter

5A10H42921 *

Adapter, 45W wall mount with round plug, Liteon PA-145055LG 20V2.25A adapter

5A10H42920 *

Adapter, 45W wall mount with round plug, Liteon PA-145055LL 20V2.25A adapter

5A10H42923 *

Adapter, 45W wall mount with round plug, Liteon PA-145055LK 20V2.25A adapter

5A10H42917 *

Adapter, 45W wall mount with round plug, Liteon PA-145055LI 20V2.25A adapter

5A10H42926 *

Adapter, 45W wall mount with round plug, Liteon PA-145055LR 20V2.25A adapter

5A10H42919 *

Adapter, 45W wall mount with round plug, Liteon PA-145055LS 20V2.25A adapter

5A10H42922 *

Adapter, 45W wall mount with round plug, Liteon PA-145055LU 20V2.25A adapter

5A10H42925 *

Adapter, 45W wall mount with round plug, Liteon PA-145055LZ 20V2.25A adapter

5A10H42918 *

Adapter, 45W wall mount with round plug, Chicony
ADL45WCA 20V2.25A adapter

5A10H43629 *

Lenovo E41-10/E41-15

Table 9. Parts list—3-pin AC adapters (continued)
FRU

P/N

CRU
ID
5A10H43618 *

Adapter, 45W wall mount with round plug, Chicony
ADL45WCB 20V2.25A adapter
Adapter, 45W wall mount with round plug, Chicony
ADL45WCC 20V2.25A adapter

5A10H43625 *

Adapter, 45W wall mount with round plug, Chicony
ADL45WCD 20V2.25A adapter

5A10H43631 *

Adapter, 45W wall mount with round plug, Chicony
ADL45WCK 20V2.25A adapter

5A10H43619 *

Adapter, 45W wall mount with round plug, Chicony
ADL45WCE 20V2.25A adapter

5A10H43633 *

Adapter, 45W wall mount with round plug, Chicony
ADL45WCF 20V2.25A adapter

5A10H43622 *

Adapter, 45W wall mount with round plug, Chicony
ADL45WCG 20V2.25A adapter

5A10H43628 *

Adapter, 45W wall mount with round plug, Chicony
ADL45WCH 20V2.25A adapter

5A10H43616 *

Screws
Table 10. Parts list --screws
FRU

P/N

CRU ID E41-10

Screw Pack C E41-10

5S10L58166

●

E41-15
●

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Power cords
A Lenovo power cord for a specific country or region is usually available only in
that country or region:
Table 11. Parts list—3-pin power cords

Region

P/N

Indian
• LINETEK PE-361+ H05VV-F+ LS15 1m
Indian
• Longwell LP-67+BIS+LS-18 1m
Indian
• lux 0046+IS694 0.75/3C+0011 1m

145000592

CRU
ID
*

145000560

145500004

Notices

Notices
Lenovo may not offer the products, services, or features discussed in this
document in all countries. Consult your local Lenovo representative for
information on the products and services currently available in your area. Any
reference to a Lenovo product, program, or service is not intended to state or
imply that only that Lenovo product, program, or service may be used. Any
functionally equivalent product, program, or service that does not infringe any
Lenovo intellectual property right may be used instead. However, it is the user’s
responsibility to evaluate and verify the operation of any other product,
program, or service.
Lenovo may have patents or pending patent applications covering subject
matter described in this document. The furnishing of this document does not
give you any license to these patents.
LENOVO GROUP LTD. PROVIDES THIS PUBLICATION “AS IS” WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. Some jurisdictions do not allow disclaimer of express or implied
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This information could include technical inaccuracies or typographical errors.
Changes are periodically made to the information herein; these changes will be
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The products described in this document are not intended for use in
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injury or death to persons. The information contained in this document does not
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intellectual property rights of Lenovo or third parties. All information contained
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Lenovo may use or distribute any of the information you supply in any way it
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Any references in this publication to non-Lenovo Web sites are provided for
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Web sites. The materials at those Web sites are not part of the materials for this
Lenovo product, and use of those Web sites is at your own risk.

Lenovo E41-10/E41-15 Hardware Maintenance Manual

Any performance data contained herein was determined in a controlled
environment. Therefore, the result obtained in other operating environments
may vary significantly. Some measurements may have been made on
development-level systems and there is no guarantee that these measurements
will be the same on generally available systems. Furthermore, some
measurements may have been estimated through extrapolation. Actual results
may vary. Users of this document should verify the applicable data for their
specific environment.

Trademarks
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