Lenovo B41 80 Hmm En 20150911 User Manual (English) Hardward Maintenance Laptop (Lenovo) Type 80LG

2015-10-09

User Manual: Lenovo B41-80 Hmm En 20150911 (English) Hardward Maintenance Manual - Lenovo B41-80 laptop B41-80 Laptop (Lenovo) - Type 80LG

Open the PDF directly: View PDF .
Page Count: 85

Download
Open PDF In Browser	View PDF

Lenovo B41-80
Hardware
Maintenance
Manual

Note:
Before using this information and the product it supports, be sure to read the general information
under “Notices” on page 80.

First Edition (September 2015)
© Copyright Lenovo 2015. 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.
© 2015 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 ................. 21
Checking the battery pack ......................... 22
Related service information .......................23
Restoring the factory contents by using
Recovery Disc Set .............................................. 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

1030 Bottom slot cover ................................ 35
1040 Hard disk drive ................................... 36
1050 DIMM ................................................... 38
1060 PCI Express Mini Card for wireless
LAN/WAN.................................................... 39
1070 Keyboard.............................................. 40
1080 Keyboard bezel ................................... 42
1090 Finger print, power board and led
board.............................................................. 44
1100 USB board ............................................ 46
1110 System board ....................................... 47
1120 Fan and heat sink assembly .............. 49
1130 Speakers ............................................... 50
1140 LCD unit and base cover ................... 51
1150 LCD front bezel................................... 55
1160 LCD panel ............................................ 56
1170 LCD hinges .......................................... 58
1180 Antenna, LCD cable, and integrated
camera ........................................................... 59
Locations ............................................................. 61
Front view ..................................................... 61
Right-side view ............................................ 62
Bottom and left-side view .......................... 63
Parts list ............................................................... 64
Overall ........................................................... 65
LCD FRUs ..................................................... 70
Keyboard....................................................... 72
Miscellaneous parts ..................................... 75
AC adapters.................................................. 76
Screws............................................................ 76
Power cords .................................................. 77
Notices ......................................................... 80
Trademarks......................................................... 81

Lenovo B41-80 ............................................27
Specifications ..................................................... 27
Status indicators ................................................ 28
Fn key combinations ......................................... 29
Hotkeys ............................................................... 29
FRU replacement notices.................................. 30
Screw notices................................................ 30
Removing and replacing an FRU.................... 31
1010 Battery pack......................................... 32
1020 Optical drive ....................................... 33

iii

About this manual
This manual contains service and reference information for the following
Lenovo product:
Lenovo B41-80
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.

Lenovo B41-80

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 B41-80
Hardware Maintenance Manual
General safety
Follow the following rules 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 tool case 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.

Lenovo B41-80

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 B41-80
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.

Lenovo B41-80

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 B41-80
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.

Lenovo B41-80

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 B41-80
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.

Lenovo B41-80

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 B41-80
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.

Lenovo B41-80

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 B41-80
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.

Lenovo B41-80

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 B41-80
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.

Lenovo B41-80

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 B41-80
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.

Lenovo B41-80

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 B41-80
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.

Lenovo B41-80

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 B41-80
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.

Lenovo B41-80

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” on page 21.
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

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 B41-80” on page 27.
Note: Noise from the AC adapter does not always indicate a defect.

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.

Lenovo B41-80
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® 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.

Lenovo B41-80

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
Restore of factory default
This topic provides information about the recovery programs that are available
for you to recover the computer settings.
• Windows 7: The following recovery programs are available on computers
with a Windows 7 operating system:
– OneKey Recovery Pro
The OneKey Recovery Pro program enables you to back up all your hard disk
drive contents, including the operating system, data files, software programs,
and personal settings. You can designate where the OneKey Recovery Pro
program stores the backup. After you have backed up the contents on the hard
disk drive, you can restore the complete contents of the hard disk drive,
restore only the desired files, or restore only the Windows operating system
and applications.
– Product Recovery
The Product Recovery program enables you to restore the computer settings
to the factory default settings through recovery media.
Attention: When you use the Product Recovery program to restore the
computer settings, all the data you have stored on the hard disk drive will be
deleted and the computer settings will be restored to the factory default
settings. During the restoring process, you will be given the option to save one
or more files currently on the hard disk drive to other media before the data is
deleted.
• Windows 8: The preinstalled Windows recovery program enables you to do
the following:
– Refresh the computer without losing personal files
– Restore the computer to the factory default settings
Attention:When you use the Windows recovery program to restore the
computer settings, all the data you have stored on the hard disk drive will be
deleted and the computer will be restored to the factory default settings. To
avoid data loss, back up your data in advance.
– Configure the advanced startup options
The advanced startup options enable you to do the following:
–Change the startup settings of the Windows operating system
–Restore the Windows operating system from a system image
–Change the startup settings of the Windows operating system
For more information about the recovery solutions, refer to the help information
system of the programs.

Lenovo B41-80
Hardware Maintenance Manual
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.

Lenovo B41-80

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
.
F9
To end screen blank state and resume normal operation, press F9

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 button.
• 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 button.
• Press the Windows button.

Lenovo B41-80
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 B41-80

Lenovo B41-80
This chapter presents the following product-specific service references and
product-specific parts information:
• “Specifications” on page 27
• “Status indicators” on page 28
• “Fn key combinations” on page 29
• “FRU replacement notices” on page 30
• “Removing and replacing an FRU” on page 31
• “Locations” on page 61
• “Parts list” on page 64

Specifications
The following table lists the specifications of the Lenovo B41-80:
Table 1. Specifications
Feature
Processor

Description

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-1,600 MHz
Maximum capacity
16 GB
Slots
SODIMM × 2
Hard disk drive Form factor
2.5-inch, 9.5 mm Height (7 mm
compatible)
Interface
SATA III (SATA II compatible)
Optical Drive (on Form factor
9.0 mm
select models)
Type
Rambo
Display
Display resolution
16:9 (1,366 × 768 pixels HD)
(LCD)
16:9 (1,920 × 1,080 pixels FHD)
LCD backlight
LED
I/O Ports
USB
USB 2.0 × 1, USB 3.0 × 2
Communication
RJ-45 × 1
Audio
Combo audio jack × 1
Video/Audio
HDMI × 1
Memory card slot
4 in 1 slot × 1 (SD/SDHC/SDXC/
MMC)
Battery pack
Type
Li-Cyllinder
Cells/Capacity
4 cells, 2,200 mAh
AC power
Input
100-240 V, 50-60 Hz AC
adapter
Output voltage
20 V DC
Power
45 W or 65 W
Miscellaneous
Camera
0.3 MP, 720 P or no camera
Kensington lock slot Yes

Lenovo B41-80
Hardware Maintenance Manual
Status indicators
The system status indicators below show the computer status:

Table 2. Status indicators
The system status indicators show the current status of your computer.

Power and battery status indicator
• Green: The battery has a charge between 20% and 100% and the AC adapter
is not connected to the computer, or the battery has a charge between 80%
and 100% and the AC power adapter is connected to the computer.
• Blinking green: The battery has a charge between 20% and 80% and the AC
power adapter is connected to the computer or the computer is in sleep
mode.
• Amber: The battery has a charge between 5% and 20% and the AC adapter is
not connected to the computer.
• Blinking amber: The battery has a charge of 20% or less and the AC power
adapter is connected to the computer.
• Off: The battery is detached, or the battery has a charge of 5% or less and the
AC adapter is not connected to the computer, or the computer is powered off
or in hibernate mode.

Hard disk drive indicator
When this indicator is on, the hard disk drive is reading or writing data.
Attention:
• When the indicator is on, do not put the computer into sleep mode or turn off
the computer.
• When the indicator is on, do not move the computer. Sudden physical shock
might cause hard disk drive errors.

Lenovo B41-80

Fn key combinations
The following table shows the function of each combination of Fn with a function
key.
Table 3. Fn key combinations
Key combination
Fn + Home:
Fn + End:
Fn + PgUp:
Fn + PgDn:

Description
Activate the pause function.
Activate the break function.
Enable/disable the scroll lock.
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

Mutes/unmutes the sound.

Enables/disables Airplane
mode.

Decreases the volume level.

Switches the active
program.

Increases the volume level.

Turns the LCD screen
backlight on/off.

Closes the currently active
window.

Projects to a connected
display.

Refreshes the desktop or the
currently active window.

Decreases display
brightness.

Enables/disables the
touchpad.

Increases display
brightness.

Lenovo B41-80
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.
• Remove screws carefully for reuse.
• 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 B41-80

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 30.
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 61.
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 B41-80
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.

Figure 1. Removal steps of battery pack
Unlock the manual battery latch a . While holding the spring-loaded battery
latch in the unlocked position b , then remove the battery pack in the direction
shown by arrow c .

When installing: Install the battery pack along the slide rails of the slot. Then
make sure the manual battery latch in the lock position.

Lenovo B41-80

1020 Optical drive
For access, remove this FRU:
“1010 Battery pack” on page 32
Figure 2. Removal steps of optical drive
Remove the screw a . Then remove the optical drive by arrow b .
1

Step

Screw (quantity)

Color

Torque

M2 x 6 mm, flat-head, nylok-coated (1)

Black

1.5~2.0kgf.cm

Unsnap to remove the optical drive bezel in the direction by arrow c .

Lenovo B41-80
Hardware Maintenance Manual
Figure 2. Removal steps of optical drive (continued)
Remove the two screws d and remove the optical drive bracket in the direction
by arrow e .

5
2
4

Step

Screw (quantity)

Color

Torque

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

Black

1.0~1.5kgf.cm

Lenovo B41-80

1030 Bottom slot cover
For access, remove this FRU:
“1010 Battery pack” on page 32
Figure 3. Removal steps of bottom slot cover
Remove the two screws a . Then remove the bottom slot cover by arrow b .
1

Step

Screw (quantity)

Color

Torque

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

Black

2.0~2.5kgf.cm

Lenovo B41-80
Hardware Maintenance Manual
1040 Hard disk drive
For access, remove these FRUs in order:
• “1010 Battery pack” on page 32
• “1030 Bottom slot cover” on page 35
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 4. Removal steps of hard disk drive
Remove the frame fixing screws a . Remove the hard disk drive in the direction
by arrow b .
1
1

Step

Screw (quantity)

Color

Torque

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

Black

2.0~2.5kgf.cm

Lenovo B41-80

Figure 4. Removal steps of hard disk drive (continued)
Remove four screws e
c and detach the hard disk drive from the metal frame in
the direction shown by arrow e
d.
4
3

3
3

Step

Screw (quantity)

Color

Torque

c
e

M3 x 3 mm, flat-head, nylok-coated (4)

Silver

2.5~3.0kgf.cm

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

Lenovo B41-80
Hardware Maintenance Manual
1050 DIMM
For access, remove these FRUs in order:
• “1010 Battery pack” on page 32
• “1030 Bottom slot cover” on page 35
Figure 5. 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.
2
1
2

1
2

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 B41-80

1060 PCI Express Mini Card for wireless LAN/WAN
For access, remove these FRUs in order:
• “1010 Battery pack” on page 32
• “1030 Bottom slot cover” on page 35
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 5.
Parts list—Overall on page 66 for Lenovo part numbers for the approved modules.
Disconnect the two wireless LAN cables (black, white) a , and then remove the
screws b .

1
1

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 x 3 mm, flat-head, nylok-coated (1)

Black

1.0~1.5kgf.cm

Remove the card in the direction shown by arrow c .

When installing: Plug the black cable into the jack labeled AUX and the white
cable into the jack labeled MAIN.

Lenovo B41-80
Hardware Maintenance Manual
1070 Keyboard
For access, remove this FRU:
• “1010 Battery pack” on page 32
Figure 7. Removal steps of keyboard
Remove three screws a.
1
1

Step

Screw (quantity)

Color

Torque

M2 x 6 mm, flat-head, nylok-coated (3)

Black

1.5~2.0kgf.cm

Pull to unsnap the keyboard in the direction by arrows b c .

2
3

Lenovo B41-80

Figure 7. Removal steps of keyboard (continued)
Lift up the keyboard d and disconnect the connector in the direction shown by
arrows e f. Be careful not to damage the connector.
.

5
6

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

Lenovo B41-80
Hardware Maintenance Manual
1080 Keyboard bezel
For access, remove these FRUs:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1070 Keyboard” on page 40
Figure 8. Removal steps of keyboard bezel
Remove nine screws a and three screws b .
1
2

2
1

1
1
1
1
1
1

Step

Screw (quantity)

Color

Torque

a
b

M2.5 x 5 mm, flat-head, nylok-coated (9)

Black

2.0~2.5kgf.cm

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

Black

1.0~1.5kgf.cm

Lenovo B41-80

Figure 8. Removal steps of keyboard bezel (continued)
Disconnect four connectors in the direction shown by arrow c and remove the
keyboard bezel by arrow d.

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

Lenovo B41-80
Hardware Maintenance Manual
1090 Finger print, power board and led board
For access, remove these FRUs:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1070 Keyboard” on page 40
• “1080 Keyboard bezel” on page 42
Figure 9. Removal steps of finger print, power board and power board
Disconnect the finger print connector in the direction by arrow a b . Remove
the screw c . Remove the finger print bracket in the direction by arrow d .
Then remove the finger print by arrow d .
3

1
2

Step

Screw (quantity)

Color

Torque

M2 x 3 mm, flat-head, nylok-coated (1)

Black

1.0~1.5kgf.cm

Peel off the adhesive of the power board FPC. Remove the screw e . Then
remove the power board in the direction by arrow f .

Lenovo B41-80

Figure 9. Removal steps of finger print, power board and power board (continued)
Peel off the adhesive of the led board FPC. Then remove the led board from its
cavity in the direction by arrow 7 .

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

Lenovo B41-80
Hardware Maintenance Manual
1100 USB board
For access, remove these FRUs:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1070 Keyboard” on page 40
• “1080 Keyboard bezel” on page 42
Figure 10. Removal steps of USB board
Disconnect the connector in the direction shown by arrow a. Remove the screw
b. Then remove the USB board in the direction shown by arrow c .

2
3
1

Step

Screw (quantity)

Color

Torque

M2.5 x 4 mm, flat-head, nylok-coated (1)

Black

2.0~2.5kgf.cm

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

Lenovo B41-80

1110 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:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1040 Hard disk drive” on page 36
• “1050 DIMM” on page 38
• “1060 PCI Express Mini Card for wireless LAN/WAN” on page 39
• “1070 Keyboard” on page 40
• “1080 Keyboard bezel” on page 42
Figure 11. Removal steps of system board
Disconnect the speaker connector in the direction by arrow a .

Lenovo B41-80
Hardware Maintenance Manual
Figure 11. Removal steps of system board (continued)
Disconnect the USB board connector in the direction shown by arrow b . Then
disconnect the EDP connector in the direction shown by arrow c .

Remove the screw d . Pull the DC-IN connect from its cavity in the direction by
arrow e . Then remove the system board in the direction by arrow f .

Step Screw (quantity)

Color Torque

d
7

Black

M2.5 x 4 mm, flat-head, nylok-coated (1)

2.0~2.5kgf.cm

When installing:
• Make sure USB, HDMI, and the VGA of the system board attached into its
holes on the base properly. Improper placement of the jacks may cause
damage.
• Make sure that the connectors are attached firmly to the system board.

Lenovo B41-80

1120 Fan and heat sink assembly
For access, remove these FRUs in order:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1040 Hard disk drive” on page 36
• “1050 DIMM” on page 38
• “1060 PCI Express Mini Card for wireless LAN/WAN” on page 39
• “1070 Keyboard” on page 40
• “1080 Keyboard bezel” on page 42
• “1110 System board” on page 47
Figure 12. Removal steps of fan and heat sink assembly
Disconnect the fan connector in the direction by arrow a. Remove the screw b
and six screws c. Then remove the fan and heat sink in the direction as shown
by arrow d.
3

3
3
3
2

Step Screw (quantity)

Color Torque

b
d
7
c
d
7

M2 x 5 mm, flat-head, nylok-coated (1)

Silver 1.5~2.0kgf.cm

M2 x 3 mm, flat-head, nylok-coated (6)

Black

1.0~1.5kgf.cm

When installing: Make sure that all the fan and DC-IN connectors are attached
firmly.

Lenovo B41-80
Hardware Maintenance Manual
1130 Speakers
For access, remove these FRUs:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1040 Hard disk drive” on page 36
• “1050 DIMM” on page 38
• “1060 PCI Express Mini Card for wireless LAN/WAN” on page 39
• “1070 Keyboard” on page 40
• “1080 Keyboard bezel” on page 42
• “1110 System board” on page 47
Figure 13. Removal steps of speakers
Release the cable of speakers from the cable guide by arrows. Remove four
screws a. Then remove the speakers in the direction by arrow b.

2
2

Step Screw (quantity)

Color Torque

d
a
7

Black

M2 x2 mm, flat-head, nylok-coated (4)

1.0~1.5kgf.cm

When installing: Route the speakers cables along the cable guides.

Lenovo B41-80

1140 LCD unit and base cover
For access, remove these FRUs:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1040 Hard disk drive” on page 36
• “1050 DIMM” on page 38
• “1060 PCI Express Mini Card for wireless LAN/WAN” on page 39
• “1070 Keyboard” on page 40
• “1080 Keyboard bezel” on page 42
• “1100 USB board” on page 46
• “1110 System board” on page 47
Figure 14. Removal steps of LCD unit and base cover
Release the two antenna cables from the cable guides by arrows. Remove six
screws a
b.

1
1

Step

Screw (quantity)

Color

Torque

a
b

M2.5 x 4 mm, flat-head, nylok-coated (6)

Black

2.0~2.5kgf.cm

Lenovo B41-80
Hardware Maintenance Manual
Figure 14. Removal steps of LCD unit and base cover (continued)
Remove the LCD unit from the base cover in the direction by arrow b .

Lenovo B41-80

For Windows 7 operating System:
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
labels:
The following labels need to be peeled off from the old base cover, and put
on the new base cover.
ES label
VGA label
CPU label
Win7 C-Sticker
Rating label
Rating print label
WLAN & BT Label
Indonesia rating label
Indonesia rating label
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:
B41-80:

Notes:
No WLAN & BT Label (h) case, align the Indonesia rating label (i) to the
WLAN&BT label (h).

Lenovo B41-80
Hardware Maintenance Manual
For Windows 8 operating System:
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
labels:
The following labels need to be peeled off from the old base cover, and put
on the new base cover.
ES label
VGA label
CPU label
Rating label
Rating print label
WLAN & BT Label
Indonesia rating label
GML Label
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:
B41-80:

g
h

Notes:
No WLAN & BT Label (g) case, align the Indonesia rating label (h) to the
WLAN&BT label (g).

Lenovo B41-80

1150 LCD front bezel
For access, remove these FRUs:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1040 Hard disk drive” on page 36
• “1050 DIMM” on page 38
• “1060 PCI Express Mini Card for wireless LAN/WAN” on page 39
• “1070 Keyboard” on page 40
• “1080 Keyboard bezel” on page 42
• “1110 System board” on page 47
• “1140 LCD unit and base cover” on page 51
Figure 15. Removal steps of LCD front bezel
Remove the LCD front bezel in the direction by arrow a .

1
1
1
1

Lenovo B41-80
Hardware Maintenance Manual
1160 LCD panel
For access, remove these FRUs in order:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1040 Hard disk drive” on page 36
• “1050 DIMM” on page 38
• “1060 PCI Express Mini Card for wireless LAN/WAN” on page 39
• “1070 Keyboard” on page 40
• “1080 Keyboard bezel” on page 42
• “1110 System board” on page 47
• “1140 LCD unit and base cover” on page 51
• “1150 LCD front bezel” on page 55
Figure 16. Removal steps of LCD panel
Remove four screws a.
.

1
1

Step

Screw (quantity)

Color

Torque

M2 x 4 mm, flat-head, nylok-coated (4)

Black

1.5~2.0kgf.cm

Lenovo B41-80

Figure 16. Removal steps of LCD panel (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 in the direction by arrow
d.

4
3

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

Lenovo B41-80
Hardware Maintenance Manual
1170 LCD hinges
For access, remove these FRUs:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1040 Hard disk drive” on page 36
• “1050 DIMM” on page 38
• “1060 PCI Express Mini Card for wireless LAN/WAN” on page 39
• “1070 Keyboard” on page 40
• “1080 Keyboard bezel” on page 42
• “1110 System board” on page 47
• “1140 LCD unit and base cover” on page 51
• “1150 LCD front bezel” on page 55
• “1160 LCD panel” on page 56
Figure 17. Removal steps of hinges
Remove two screws a and six screws b . Remove the hinges in the direction
shown by arrow c .
1
3
2

2
1
2
3

Step

Screw (quantity)

Color

Torque

a
b
a

M2 x 4 mm, flat-head, nylok-coated (2)

Black

1.5~2.0kgf.cm

M2.5 x 4 mm, flat-head, nylok-coated (6) Black

2.0~2.5kgf.cm

Lenovo B41-80

1180 Antenna, LCD cable, and integrated camera
For access, remove these FRUs in order:
• “1010 Battery pack” on page 32
• “1020 Optical drive” on page 33
• “1030 Bottom slot cover” on page 35
• “1040 Hard disk drive” on page 36
• “1050 DIMM” on page 38
• “1060 PCI Express Mini Card for wireless LAN/WAN” on page 39
• “1070 Keyboard” on page 40
• “1080 Keyboard bezel” on page 42
• “1110 System board” on page 47
• “1140 LCD unit and base cover” on page 51
• “1150 LCD front bezel” on page 55
• “1160 LCD panel” on page 56
• “1170 LCD hinges” on page 58
Figure 18. Removal steps of Antenna, LCD cable, and integrated camera
Disconnect the camera connector in the direction shown by arrow a . Remove
the camera from the LCD cover in the direction by arrow b .
1

Lenovo B41-80
Hardware Maintenance Manual
Figure 18. Removal steps of Antenna, LCD cable, and integrated camera
Release two antenna cables and one LCD cable from the cable guide. Detach the
adhesive of the antenna to remove them in the direction by arrow c .

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 can cause the cables to be damaged by
the cable guides, or a wire to be broken.
• Make sure that the camera connector is attached firmly.

Lenovo B41-80

Locations
Front view
a
b
c
d
e
f

Integrated camera
Built-in microphone
Wireless antennas
Computer display
Speakers
Power button

7 Finger print

h Touchpad
i Memory card slot
j System status indicator
2

9
10

7
8

Lenovo B41-80
Hardware Maintenance Manual
Right-side view
a

Combo audio jack

b
c
d
e

USB port
Novo button
Kingston lock slot
Optical drive

5
4
2
1

Lenovo B41-80

Bottom and left-side view
a
b
c
d
e
f

AC power adapter jack
Louvers
VGA port
RJ-45 port
HDMI port
USB port

1
2
3
4
5
6

Lenovo B41-80
Hardware Maintenance Manual
Parts list
This section presents the following service parts:
• “Overall” on page 65
• “LCD FRUs” on page 70
• “Keyboard” on page 72
• “Miscellaneous parts” on page 75
• “AC adapters” on page 76
• “Screws” on page 76
• “Power cords” on page 77

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

Lenovo B41-80

Overall

2
4
(d)
7
9
(e)

3
5
(c)
6
(f)
8
(a)
11

13
15

16
(g)
(b)

17
19

18
(h)

Lenovo B41-80
Hardware Maintenance Manual
Table 5. Parts list—Overall
No. FRU

FRU no.

CRU ID

1
2
3

121500242

121500244

121500243

5B10K10153

5B10K10195

5B10K10151

90205414
90205416
90205417
90007268
90205424
90205425
90205422
90205423
90205413
5M20G69602
5DX0J46488

N
N
N
N
N
N
N
N
N
*
*

5DX0F86404

5DX0G86787

90205410
5B20K57284

N
N

12
13

LCD unit (see “LCD FRUs” on page 70)
Keyboard (see “Keyboard” on page 72)
Battery, Bx0 SY L13S4A01 14.4V32Wh 4cell bty, 4
cell 18650 2200mAh, Battery for WW except Indian
& China
Battery, Bx0 LG L13L4A01 14.4V32Wh 4cell bty, 4
cell 18650 2200mAh, Battery for WW except Indian
& China
Battery, Bx0 SP/L L13M4A01 14.4V32Wh 4cell bty,
4 cell 18650 2200mAh, Battery for WW except
Indian & China
Battery, Bx0 SY L13S4A01 14.4V32Wh 4cell GB, 4
cell 18650 2200mAh Battery for WW
Battery, Bx0 SP/L L13M4A01 14.4V32Wh 4cell GB,
4 cell 18650 2200mAh Battery for WW
Battery, Bx0 LG L13L4A01 14.4V32Wh 4cell GB, 4
cell 18650 2200mAh Battery for WW
ZIWB2 Power Board W/Cable
ZIWB2 Upper Case W/FP/TP
ZIWB2 Upper Case W/TPWO/FP
ZIWB2 Fingerprint Board
ZIWB2 Fan
ZIWB2 Speaker W/RubberL+R
ZIWB2 Heat Sink DIS
ZIWB2 Heat Sink UMA
ZIWB2 LED Board W/Cable
Dummy ODD C B40-30
ODD, HLDS GUE0N 9.0mm internal DVD RW
ODD, 9.0 Rambo
ODD, PLDS DA-8A6SH 9.0mm Slim Tray Rambo
ODD, 9.0 Rambo
ODD, PSN UJ8HC 9.0mm Slim Tray Rambo ODD,
9.0 Rambo
ZIWB2 ODD Bezel
MB C B41-80 NOK I3-6100U EXO2G

MB C B41-80 WIN I3-6100U EXO2G

5B20K57286

MB C B41-80 NOK I3-6100U EXO1G

5B20K57298

MB C B41-80 WIN I3-6100U EXO1G

5B20K57297

MB C B41-80 NOK I3-6100U UMA

5B20K57292

MB C B41-80 WIN I3-6100U UMA

5B20K57289

MB C B41-80 NOK I5-6200U EXO2G

5B20K57305

MB C B41-80 WIN I5-6200U EXO2G

5B20K57281

MB C B41-80 NOK I5-6200U EXO1G

5B20K57291

MB C B41-80 WIN I5-6200U EXO1G

5B20K57288

3
3
3
4
5
5
6
7
8
9
9
10
11
11
11
11

Lenovo B41-80

Table 5. Parts list—Overall (continued)
No. FRU

FRU no.

CRU ID

MB C B41-80 NOK I5-6200U UMA

5B20K57296

MB C B41-80 WIN I5-6200U UMA

5B20K57278

MB C B41-80 NOK I7-6500U EXO2G

5B20K57277

MB C B41-80 WIN I7-6500U EXO2G

5B20K57300

MB C B41-80 NOK I7-6500U EXO1G

5B20K57287

MB C B41-80 WIN I7-6500U EXO1G

5B20K57283

MB C B41-80 NOK I7-6500U UMA

5B20K57290

MB C B41-80 WIN I7-6500U UMA

5B20K57295

MB C B41-80 NOK 4405U EXO2G

5B20K57285

MB C B41-80 WIN 4405U EXO2G

5B20K57302

MB C B41-80 NOK 4405U EXO1G

5B20K57279

MB C B41-80 WIN 4405U EXO1G

5B20K57306

MB C B41-80 NOK 4405U UMA

5B20K57294

MB C B41-80 WIN 4405U UMA

5B20K57280

MB C B41-80 NOK 3855U EXO2G

5B20K57282

MB C B41-80 WIN 3855U EXO2G

5B20K57304

MB C B41-80 NOK 3855U EXO1G

5B20K57293

MB C B41-80 WIN 3855U EXO1G

5B20K57303

MB C B41-80 NOK 3855U UMA

5B20K57301

MB C B41-80 WIN 3855U UMA

5B20K57299

ZIWB2 Lower Case

90205426

RAM, SS M471B5674QH0-YK0 2G DDR3L 1600,
DDR3L 1600 2GB
RAM, HMT425S6CFR6A-PB 2GB DDR3L 1600,
DDR3L 1600 2GB
RAM, MT4KTF25664HZ-1G6E1 2GB DDR3L,
DDR3L 1600 2GB
RAM, RMT3190ME76F8F-1600 2GB, DDR3L 1600
2GB
RAM, M471B5173EB0-YK0 20nm 4GB DDR3L
1600, DDR3L 1600 4GB
RAM, SK HMT451S6BFR8A-PB/RD 4GB DDR3L
1600, DDR3L 1600 4GB
RAM, RMT3170MN68F9F-1600 4GB DDR3L
1600(MC), DDR3L 1600 4GB
RAM, MC MT8KTF51264HZ-1G6E1 4GB DDR3L
1600, DDR3L 1600 4GB
RAM, M471B5173EB0-YK0 20nm 4GB DDR3L
1600, DDR3L 1600 4GB
RAM, SK HMT451S6BFR8A-PB/RD 4GB DDR3L
1600, DDR3L 1600 4GB

11202451

5M30G99881

11201967

5M30G04992

5M30G18425

11202706

5M30G75129

11202125

5M30G18425

11202706

15
15
15
15
15
15
15
15
15

Lenovo B41-80
Hardware Maintenance Manual
Table 5. Parts list—Overall (continued)
No. FRU

FRU no.

CRU ID

5M30G75129

11202125

5M30G18424

11202707

11202450

11201304

5M30G18424

11202707

11202450

11201304

SW10H24486

SW10A11646

SW10H24481

SW10H24482

SW10A11586

SW10A11641

SW10A11648

90007250
16200383

N
*

5H20H14223

16200433

5H20J35762

15
15
15
15
15
15
15
15
15
16
16
16

16
16

17
18
18
18
18

RAM, RMT3170MN68F9F-1600 4GB DDR3L
1600(MC), DDR3L 1600 4GB
RAM, MC MT8KTF51264HZ-1G6E1 4GB DDR3L
1600, DDR3L 1600 4GB
RAM, M471B1G73EB0-YK0 20nm 8GB DDR3L
1600, DDR3L 1600 8GB
RAM, SK HMT41GS6BFR8A-PB/RD 8GB DDR3L
1600, DDR3L 1600 8GB
RAM, RMT3160ME68FAF-1600 8GB DDR3L 1600,
DDR3L 1600 8GB
RAM, Mic MT16KTF1G64HZ-1G6E1 DDR3L 1600
8GB, DDR3L 1600 8GB
RAM, M471B1G73EB0-YK0 20nm 8GB DDR3L
1600, DDR3L 1600 8GB
RAM, SK HMT41GS6BFR8A-PB/RD 8GB DDR3L
1600, DDR3L 1600 8GB
RAM, RMT3160ME68FAF-1600 8GB DDR3L 1600,
DDR3L 1600 8GB
RAM, Mic MT16KTF1G64HZ-1G6E1 DDR3L 1600
8GB, DDR3L 1600 8GB
WirelessLan_Intel, Intel 3165 1x1AC+BT PCIE M.2
WLAN, Intel 1x1AC+BT
WirelessLan_Intel, Intel 8260 2x2AC+BT PCIE M.2
WLAN NV, Intel 2x2AC+BT
WirelessLan_Non_Intel, Ltn BCM4350
2x2AC+BT4.0 PCIE M.2 WLAN, Non-Intel Wifi 2X2
AC+ BT 4.0
WirelessLan_Non_Intel, Fxn BCM4350
2x2AC+BT4.0 PCIE M.2 WLAN, Non-Intel Wifi 2X2
AC+ BT 4.0
WirelessLan_Non_Intel, Cbt BCM43162
1x1AC+BT4.0 PCIE M.2 WLAN V2, Non-Intel Wifi
1X1 AC+ BT 4.0
WirelessLan_Non_Intel, Ltn NFA435 1x1AC+BT4.0
PCIE M.2 WLAN, Non-Intel Wifi 1X1 AC+ BT 4.0
WirelessLan_Non_Intel, Cbt RTL8821AE
1x1AC+BT4.0 PCIE M.2 WLAN, Non-Intel Wifi 1X1
AC+ BT 4.0
ZIWB2 IO Board
HDD, ST500LT012 6G 7mm 5.4K 500G HDD, 500G
5400rpm 7mm
HDD, HTS545050A7E660 6G 7mm 5.4K 500G
HDD, 500G 5400rpm 7mm
HDD, MQ01ABF050 6G 7mm 5.4K 500G HDD,
500G 5400rpm 7mm
HDD, WD WD5000LPCX-24VHAT0 7mm
5400rpm 500G HDD, 500G 5400rpm 7mm

Lenovo B41-80

Table 5. Parts list—Overall (continued)
No. FRU

FRU no.

CRU ID

16200385

16200400

16200429

16200393

5SD0H45117

5H20H24608

5H20H24607

90205407
90205408

*
*

18
18
18
18
18
18
19
19

HDD, ST1000LM024 6G 9.5mm 5.4K 1T HDD, 1TB
5400rpm 9.5mm
HDD, HTS541010A9E660 6G 9.5mm 5.4K 1T HDD,
1TB 5400rpm 9.5mm
HDD, TSB MQ01ABD100 6G 9.5mm 5.4K 1T HDD,
1TB 5400rpm 9.5mm
HDD, WD10JPCX-24UE4T0 6G 9.5mm 5.4K 1T
HDD, 1TB 5400rpm 9.5mm
HDD, Samsung MZYLF128HCHP 2.5‘’ 5mm
128GB SSD, 128GB 2.5" Sata 5mm(low cost)
HDD, Seagate KahunaR ST500LM000 7mm 5.4K
500G+8G, 500G +8 G Hybrid 7mm
HDD, Seagate KahunaR ST1000LM014 9.5mm
1T+8G, 1T +8G Hybrid 9.5mm
ZIWB2 Thermal Door 95H
ZIWB2 Thermal Door 70H

Lenovo B41-80
Hardware Maintenance Manual
LCD FRUs
In Lenovo B41-80, the type of LCD is 14.0-inch.

6
5
2

Lenovo B41-80

Table 6. Parts list—15.6-in. HD TFT
No. FRU

FRU no.

CRU ID

1
1
2

90205434
90205435
5D10H91343

N
N
N

5D10G95364

5D10G94548

5D10H33162

5D10H15382

5D10H20139

5D10J33368

5D10H56752

90205427
90205429
90007266
90007267
5C20G89270

N
N
N
N
N

5C20G89263

5C20G89271

5C20G89265

5C20G89273

5C20G89266

5C20G89274

5C20G89267

90205430
90205431
90205432
90205433
90205436

N
N
N
N
N

2
2
2
2
2
2
2
3
4
5
5
5
5
5
5
5
5
5
5
6
6
6
6
7

ZIWB2 LCD Bezel W/Camera/Magnet/Mylar
ZIWB2 LCD Bezel WO/Camera/Magnet/Myla
Panel LG LP140WH8-TPH1 HDT AG F NB 14.0 HD
TN AG(FLAT)
Panel AUO B140XTN02.E 0A HD AG S NB 14.0 HD
TN AG(FLAT)
Panel INX N140BGE-EA3 C3 HD AG S NB 14.0 HD
TN AG(FLAT)
Panel IVO M140NWR4 R1 HW2.1 HD AG F NB 14.0
HD TN AG(FLAT)
Panel SEC LTN140AT35-401 HD AG F LED1 NB
LCD 14.0 HD TN AG(FLAT)
Panel AUO B140HTN01.B FHD AG S NB 14.0 FHD
TN AG(SLIM)
Panel IN N140HGE-EAA C3 FHDT AG S NB 14.0
FHD TN AG(SLIM)
Panel BO HB140FH1-401 V4.1 FHDT AG S 14.0 FHD
TN AG(SLIM)
ZIWB2 HingeL+RNT
ZIWB2 Antenna Main+AUXNT
ZIWB2 Camera Board 1M NT
ZIWB2 Camera Board 0.3M NT
Camera BIS BNC716YTK HD NB camera HD 720P
WITH DIGITAL MIC
Camera BIS BNC716YS7 HD NB camera HD 720P
WITH DIGITAL MIC
Camera AVC HAA-6D0F04 HD NB camera HD 720P
WITH DIGITAL MIC
Camera CCY CNFEH37 HD NB camera HD 720P
WITH DIGITAL MIC
Camera BIS BNC7VTKTD 0.3M NB camera 0.3
MEGA WITH DIGITAL MIC
Camera BIS BNC7VTKKT 0.3M NB camera 0.3
MEGA WITH DIGITAL MIC
Camera LTN 4SF015N2 0.3M NB camera 0.3 MEGA
WITH DIGITAL MIC
Camera AVC HAA-584B01 0.3M NB camera 0.3
MEGA WITH DIGITAL MIC
ZIWB2 LCD Cable W/Camera Cable DIS NT
ZIWB2 LCD Cable W/Cam Cable UMA NT
ZIWB2 LCD Cable WO/Camera Cable DIS NT
ZIWB2 LCD Cable WO/Cam Cable UMA NT
ZIWB2 LCD Cover NT

Lenovo B41-80
Hardware Maintenance Manual
Keyboard
Table 7. Parts list—Keyboard
Language

Chicony

English
U.K. English
Italian
Spanish
Turkish
Thailand
Portugue
Latin
Canada English &French
Korean
Tradational Chinese
Russian
French
German
Arabic
Brazilian
Japanese
Dutch
Greek
Hebrew
Hungarian
Four Nordic countries
Belgian
Iceland
Slovenian
Swiss
International English
Czechoslovakian
Bulgarian
India

P/N

CRU ID

25214510
25214511
25214512
25214513
25214514
25214515
25214516
25214517
25214518
25214519
25214520
25214521
25214522
25214523
25214524
25214525
25214526
25214527
25214528
25214529
25214530
25214531
25214532
25214533
25214534
25214535
25214536
25214537
25214538
25214539

Lenovo B41-80

Table 7. Parts list—Keyboard (continued)
Language

Liteon

P/N

CRU ID

25215190
25215191
25215192
25215193
25215194
25215195
25215196
25215197
25215198
25215199
25215200
25215201
25215202
25215203
25215204
25215205
25215206
25215207
25215208
25215209
25215210
25215211
25215212
25215213
25215214
25215215
25215216
25215217
25215218
25215219

Lenovo B41-80
Hardware Maintenance Manual
Table 7. Parts list—Keyboard (continued)
Language

Sunrex

English
U.K. English
Italian
Spanish
Turkish
Thailand
Portugue
Latin
Canada English &French
Korean
Tradational Chinese
Russian
French
German
Arabic
Brazilian
Dutch
Greek
Hebrew
Hungarian
Four Nordic countries
Belgian
Iceland
Slovenian
Swiss
International English
Czechoslovakian
Bulgarian
India

P/N

CRU ID

25214540
25214541
25214542
25214543
25214544
25214545
25214546
25214547
25214548
25214549
25214550
25214551
25214552
25214553
25214554
25214555
25214557
25214558
25214559
25214560
25214561
25214562
25214563
25214564
25214565
25214566
25214567
25214568
25214569

Lenovo B41-80

Miscellaneous parts
Table 8. Parts list—Miscellaneous partss
No.

FRU

FRU no.

CRU ID

• (a) ZIWB2 ODD Bracket

90205409

• (b) ZIWB2 HDD Bracket
• (c) ZIWB2 FP Bracket

90205411
90205428

N
N

• (d) ZIWB2 TP Cable
• (e) ZIWB2 DC IN Cable DIS

90205415
90205421

N
N

• (e) ZIWB2 DC IN Cable UMA
• (f) ZIWB2 FP Board Cable

90205420
90205412

N
N

• (g) ZIWB2 IO Board Cable
• (h) ZIWB2 K Lock Bracket

90205418
90205419

N
N

Note: Italicized letters in parentheses are references
to the exploded view in “Overall” on page 65.

Lenovo B41-80
Hardware Maintenance Manual
AC adapters
Table 9. Parts list—3-pin AC adapters
FRU

P/N

CRU ID

Adapter, 45W(3pin) For China, Delta ADLX45NDC3A
20V2.25A adap DOE, BLACK 45W 3-PIN
Adapter, 45W(3pin) For China, Liteon ADLX45DLC3A
20V2.25A adap DOE, BLACK 45W 3-PIN
Adapter, 45W(3pin) For China, Chicony
ADLX45NCC3A 20V2.25A adap DOE, BLACK 45W 3PIN
Adapter, 45W(3pin) For China, Acbel ADLX45NAC3A
20V2.25A adap, BLACK 45W 3-PIN
Adapter, 45W(3pin) For india, Liteon ADLX45DLC3A
20V2.25A adap DOE, BLACK 45W 3-PIN
Adapter, 45W(3pin) For india, Chicony ADLX45NCC3A
20V2.25A adap DOE, BLACK 45W 3-PIN
Adapter, 45W(3pin) for WW except for Indian & China,
Delta ADLX45NDC3A 20V2.25A adap DOE, BLACK
45W 3-PIN
Adapter, 45W(3pin) for WW except for Indian & China,
Liteon ADLX45DLC3A 20V2.25A adap DOE, BLACK
45W 3-PIN
Adapter, 45W(3pin) for WW except for Indian & China,
Chicony ADLX45NCC3A 20V2.25A adap DOE, BLACK
45W 3-PIN
Adapter, 65W(3pin) BIS certificated for India, Delta
ADLX65NDC3A 20V3.25A BIS, BLACK 65W 3-PIN
Adapter, 65W(3pin) BIS certificated for India, Liteon
ADLX65NLC3A 20V3.25A AD BIS, BLACK 65W 3-PIN
Adapter, 65W(3pin) BIS certificated for India, Chicony
ADLX65NCC3A 20V3.25A AD BIS, BLACK 65W 3-PIN

5A10H03911

5A10H03910

5A10H03912

5A10K02213

5A10H03910

5A10H03912

5A10H03911

5A10H03910

5A10H03912

5A10J46692

5A10J75114

5A10J75111

FRU

P/N

CRU ID

Screw Pack C B40-80

5S10H41740

Screws
Table 10. Screw list

Lenovo B41-80

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

CRU ID

Brazil
• LINETEK LS15 H03VV-F LP26A 1m
Brazil
• Longwell LP-46+H03VV-F+LS-18 1m
Brazil
• VOLEX CH10S3+H03VV-F+VAC5S 1m
Brazil
• lux 0034+H03VV-F 0.75/3C+0011 1m
Israel
• LINETEK LS15+H03VV-F+LP-41 1m
Israel
• Longwell LP-41+H03VV-F+LS-18 1m
Israel
• VOLEX SI16S3+H03VV-F+VAC5S 1m
Israel
• lux 0041+H03VV-F 0.75/3C+0011 1m
CE
• LINETEK LP-34+H03VV-F + LS15 1m
CE
• Longwell LP-34A+H03VV-F+LS-18 1m
CE
• VOLEX M2511+HO3VV-F+VAC5S 1m
CE
• lux 0033+H03VV-F 0.75/3C+0011 1m
Switzerland
• LINETEK LS15+H03VV-F+LP-37 1m
Switzerland
• Longwell LP-37+H03VV-F+LS-18 1m
Switzerland
• VOLEX MP232+H03VV-F+VAC5S 1m
Switzerland
• lux 0027+H03VV-F 0.75/3C+0011 1m
UK
• LINETEK LP-61L+ H03VV-F+ LS15 1m
UK
• Longwell LP-61L+H03VV-F+LS-18 1m
UK
• VOLEX MP5004+H03VV-F+VAC5S 1m

145-000596

145-000564
145-000527
145-500011
145-000595
145-000563
145-000526
145-500012
145-000585
145-000553
145-000525
145-500001
145-000597
145-000565
145-000524
145-500013
145-000593
145-000561
145-000605

Lenovo B41-80
Hardware Maintenance Manual
Table 11. Parts list—3-pin power cords (continued)

Region

P/N

CRU ID

UK
• lux 0031+H03VV-F 0.75/3C+0011 1m
UL
• LINETEK LP-30B + SPT-2 + LS15 1m
UL
• Longwell LP-30B+SPT-2 18AWG+LS-18 1m
UL
• Volex US15S3+SPT-2 +VAC5S 1m
UL
• lux 0014+SPT-2 60°C 18/3C+0016 1m
CCC
• LINETEK PC323+RVV300/300+LS15 1m
CCC
• Longwell LSG-31+RVV300/300+LS-18 1m
CCC
• VOLEX GB10S3+RVV 300/500+VAC5S 1m
CCC
• lux 0036+RVV 300/300 0.75/3C+0002 1m
India
• LINETEK PE-361+ H05VV-F+ LS15 1m
India
• Longwell LP-67+BIS+LS-18 1m
India
• lux 0046+IS694 0.75/3C+0011 1m
Japan
• LINETEK LS15+VCTF+LP-54 1m
Japan
• Longwell LP-54+VCTF+LS-18 1m
Japan
• VOLEX VAC5S+VCTF+M755 1m
Japan
• lux 0018(E)+VCTF 0.75/3C+0021 1m
Australia
• LINETEK LS15+H03VV-F+LP-23A 1m
Australia
• Longwell LP-23A+LFC-3R+LS-18 1m
Australia
• VOLEX AU10S3+H03VV-F+VAC5S 1m
Australia
• lux 0038+H03VV-F 0.75/3C+0011 1m
Taiwan
• LINETEK LS15+VCTF+LP-53 1m

145-500000

145-000594
145-000562
145-000537
145-500002
145-000600
145-000568
145-000538
145-500003
145-000592
145-000560
145-500004
145-000587
145-000555
145-000530
145-500005
145-000589
145-000557
145-000532
145-500006
145-000588

Lenovo B41-80

Table 11. Parts list—3-pin power cords (continued)
Region

P/N

CRU ID

Taiwan
• Longwell LP-71+VCTF+LS-33 1m
Taiwan
• VOLEX TW15CS3+VCTF+VAC5S 1m
Taiwan
• lux 0019+VCTF 0.75/3C+0021 1m
Korea
• LINETEK LS15+H05VV-F+LP-E04A 1m
Korea
• Longwell LP-486+KTLH03VV-F+LS-5 1m
Korea
• VOLEX M2511+KETI IEC+VAC5S 1m
Korea
• lux 0033+H03VV-F 0.75/3C+0011 1m
Italy
• LINETEK LS15+H03VV-F+PE-336 1m
Italy
• Longwell LP-22+H03VV-F+LS-18 1m
Italy
• VOLEX IT10S3+HO3VV-F+VAC5S 1m
Italy
• lux 0029+H03VV-F 0.75/3C+0011 1m
South Africa
• LINETEK LS15+H03VV-F+PE-364 1m
South Africa
• Longwell LP-39+H03VV-F+LS-18 1m
South Africa
• lux 0044+H03VV-F 0.75/3C+0011 1m
Denmark
• LINETEK LS15+H03VV-F+LP-38 1m
Denmark
• Longwell LP-40+H03VV-F+LS-18 1m
Denmark
• VOLEX MP233D+H03VV-F+VAC5S 1m
Denmark
• lux 0048+H03VV-F 0.75/3C+0011 1m
Argentina
• LINETEK LS15+H03VV-F+LP39 1m
Argentina
• Longwell LP-24+H03VV-F+LS-18 1m
Argentina
• VOLEX VA2073+H03VV-F+VAC5S 1m
Argentina
• lux 0040+H03VV-F 0.75/3C+0011 1m
Thailand
• lux 0014+H03VV-F 0.75/3C+0011 1m

145-000556

145-000531
145-500007
145-000590
145-000558
145-000533
145-500008
145-000591
145-000559
145-000535
145-500009
145-000586
145-000554
145-500010
145-000598
145-000566
145-000534
145-500014
145-000599
145-000567
145-000528
145-500015
5L60J33143

Lenovo B41-80
Hardware Maintenance Manual

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
warranties in certain transactions, therefore, this statement may not apply to
you.
This information could include technical inaccuracies or typographical errors.
Changes are periodically made to the information herein; these changes will be
incorporated in new editions of the publication. Lenovo may make
improvements and/or changes in the product(s) and/or the program(s) described
in this publication at any time without notice.
The products described in this document are not intended for use in
implantation or other life support applications where malfunction may result in
injury or death to persons. The information contained in this document does not
affect or change Lenovo product specifications or warranties. Nothing in this
document shall operate as an express or implied license or indemnity under the
intellectual property rights of Lenovo or third parties. All information contained
in this document was obtained in specific environments and is presented as an
illustration. The result obtained in other operating environments may vary.
Lenovo may use or distribute any of the information you supply in any way it
believes appropriate without incurring any obligation to you.
Any references in this publication to non-Lenovo Web sites are provided for
convenience only and do not in any manner serve as an endorsement of those
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 B41-80

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
The following terms are trademarks or registered trademarks of Lenovo in the
United States, other countries, or both.
Lenovo
OneKey
VeriFace
Microsoft and Windows are trademarks of Microsoft Corporation in the United
States, other countries, or both.
Other company, products, or service names may be trademarks or service marks
of others.

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.5
Linearized                      : Yes
Tagged PDF                      : No
Page Mode                       : UseOutlines
XMP Toolkit                     : 3.1-702
Producer                        : Acrobat Distiller 7.0.5 (Windows)
Creator Tool                    : FrameMaker 10.0
Modify Date                     : 2015:09:11 17:37:09+08:00
Create Date                     : 2015:09:11 12:36:08Z
Metadata Date                   : 2015:09:11 17:37:09+08:00
Format                          : application/pdf
Title                           : 
Creator                         : .
Document ID                     : uuid:a99e8417-c525-45c0-b43b-81fee97db4fc
Instance ID                     : uuid:17158ba2-1be9-42b6-a155-eba9b3d18874
Page Count                      : 85
Page Layout                     : SinglePage

EXIF Metadata provided by EXIF.tools

Lenovo B41 80 Hmm En 20150911 User Manual (English) Hardward Maintenance Laptop (Lenovo) Type 80LG

Navigation menu

Versions of this User Manual:

Views

Navigation