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IdeaPad S100
Hardware
Maintenance
Manual
First Edition (March 2011)
© Copyright Lenovo 2011. 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.
© 2011 Lenovo
Note:
Before using this information and the product it supports, be sure to read the general information under
“Notices” on page 61.
iii
Contents
About this manual......................................... iv
Safety information.......................................... 1
General safety.................................................. 1
Electrical safety ................................................ 2
Safety inspection guide.................................... 3
Handling devices that are sensitive to
electrostatic discharge ..................................... 4
Grounding requirements .................................. 4
Safety notices: multilingual translations ........... 5
Laser compliance statement .......................... 11
Important service information .................... 14
Strategy for replacing FRUs........................... 14
Strategy for replacing a hard disk drive........ 15
Important notice for replacing
a system board............................................. 15
Important information about replacing RoHS
compliant FRUs.............................................. 15
General checkout ......................................... 17
What to do first............................................... 17
Power system checkout ................................. 18
Checking the AC adapter ............................. 19
Checking operational charging..................... 19
Checking the battery pack............................ 19
Related service information........................ 21
Restoring the factory contents by using
OneKey Recovery.......................................... 21
Restore of factory default .............................21
Using recovery discs .................................... 21
Passwords ..................................................... 22
Power-on password...................................... 22
Supervisor password.................................... 22
Power management ....................................... 22
Screen blank mode ...................................... 22
Sleep (standby) mode .................................. 22
Hibernation mode......................................... 23
Lenovo IdeaPad S100 .................................. 24
Specifications ................................................. 24
Status indicators ............................................ 26
Fn key combinations ...................................... 28
FRU replacement notices............................... 29
Screw notices............................................... 29
Removing and replacing an FRU................... 30
Base screws ................................................. 30
Battery pack ................................................. 32
Keyboard...................................................... 33
Base cover....................................................34
DIMM ............................................................ 36
Hard disk drive..............................................37
USB port ....................................................... 39
Fan assembly and Heat Sink assembly ....... 40
TVturner........................................................ 41
System board ...............................................42
Speakers ......................................................43
LCD unit........................................................44
Integrated camera ........................................ 47
Locations ........................................................48
Top view .......................................................48
Left-side view................................................49
Right-side view .............................................50
Front view .....................................................50
Bottom view .................................................. 51
Parts list..........................................................52
Overall ..........................................................53
LCD FRUs ....................................................56
Keyboard ......................................................57
Miscellaneous parts......................................58
AC adapters..................................................59
Power cords..................................................59
Notices ..........................................................61
Trademarks .................................................... 62
Lenovo IdeaPad S100 Hardware Maintenance Manual
2
Electrical safety
Observe the following rules when working on electrical equipments.
• Find the room emergency power-off (EPO) switch, disconnecting the switch
or electrical outlet. If an electrical accident occurs, you can then operate the
switch or unplug the power cord quickly.
• Do not work alone under hazardous conditions or near the equipment that
has hazardous voltages.
• Disconnect all power before:
– 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.
• 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.
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.
Lenovo IdeaPad S100 Hardware Maintenance Manual
4
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.
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.
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 sur-
face. 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.
– Attach the ESD ground clip to any frame ground, ground braid, or green-
wire ground.
– When working on a double-insulated or battery-operated system, use an
ESD common ground or reference point. You can use coax or connector-
outside 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.
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.
Note:
The use of a grounding system to guard against ESD damage is desirable but not
necessary.
Lenovo IdeaPad S100 Hardware Maintenance Manual
5
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, muĂź
sichergestellt werden, daĂź keine Schrauben, Federn oder andere Kleinteile fehlen
oder im Gehäuse vergessen wurden. Der Computer muß geschüttelt und auf
Klappergeräusche geprüft werden. Metallteile oder-splitter können Kurzschlüsse
erzeugen.
Prima di accendere l’elaboratore dopo che é stata effettuata la sostituzione di una
FRU, accertarsi che tutte le viti, le molle e tutte le altri parti di piccole dimensioni
siano nella corretta posizione e non siano sparse all’interno dell’elaboratore.
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 provocarĂan. Las piezas metálicas pueden causar
cortocircuitos eléctricos.
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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 shortcircuit
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 aufgefĂĽhrt ist. Der Einsatz falscher Batterien kann zu
EntzĂĽndung oder Explosion fĂĽhren.
Alcune batterie di riserva contengono una piccola quantitĂ 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 baterĂas de reserva contienen una pequeña cantidad de nĂquel y cadmio. No
las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite.
DesĂ©chelas tal como dispone la normativa local. Utilice sĂłlo baterĂas que se
encuentren en la lista de piezas. La utilizaciĂłn de una baterĂa no apropiada puede
provocar la igniciĂłn o explosiĂłn de la misma.
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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 entzĂĽnden, explodieren
oder schwere Verbrennungen hervorrufen. Batterien dieses Typs dĂĽrfen nicht
aufgeladen, zerlegt, ĂĽber 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 fĂĽr SondermĂĽll beachten. Beim Ersetzen der Batterie nur Batterien
des Typs verwenden, der in der Ersatzteilliste aufgefĂĽhrt ist. Der Einsatz falscher
Batterien kann zu EntzĂĽndung oder Explosion fĂĽhren.
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 baterĂa de repuesto es una baterĂa de litio y puede provocar incendios,
explosiones o quemaduras graves. No la recargue, ni quite el conector polarizado, ni
la desmonte, ni caliente por encima de los 100°C (212°F), ni la incinere ni exponga
el contenido de sus celdas al agua. Deséchela tal como dispone la normativa local.
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9
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 abgespĂĽlt und bei Beschwerden
anschlieĂźend 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
mĂnimo. Obtenga atenciĂłn medica si se presenta algĂşn sĂntoma del fluido despues
de lavarse.
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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 SicherheitsgrĂĽnden 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
KurzschluĂź oder Erdung genug Strom abgeben, um brennbare Materialien zu
entzĂĽnden 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 baterĂas principales tienen un voltaje bajo, una baterĂa cortocircuitada o
con contacto a tierra puede producir la corriente suficiente como para quemar
material combustible o provocar quemaduras en el personal.
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12
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.
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:
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 ejecuciĂłn de procedimientos distintos de los aquĂ
especificados puede provocar la exposiciĂłn a radiaciones peligrosas.
Lenovo IdeaPad S100 Hardware Maintenance Manual
14
Important service information
This chapter presents the following important service information:
• “Strategy for replacing FRUs” on page 14
– “Strategy for replacing a hard disk drive” on page 15
– “Important notice for replacing a system board” on page 15
• “Important information about replacing RoHS compliant FRUs” on page 15
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 a serial number or select a product or use Lenovo smart downloading.
3. Select the BIOS/Driver/Applications and download.
4. Follow the directions on the screen and install the necessary software.
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.
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/.
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15
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.
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.
Lenovo IdeaPad S100 Hardware Maintenance Manual
17
General checkout
This chapter presents the following information:
• “What to do first” on page 17
• “Power system checkout” on page 18
Before you go to the checkout, make sure to read the following important notes:
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.
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 IdeaPad S100 Hardware Maintenance Manual
19
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 opera-
tional charging”.
To check the AC adapter, follow the steps below:
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the
following figure:
Note: Output voltage for the AC adapter pin No. 2 may differ from the one you
are servicing.
3. If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following:
• Replace the system board.
• If the problem continues, go to “Lenovo IdeaPad S100” on page 24.
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.
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
2
1
Voltage (V DC)
+20
0
Pin
1
2
Lenovo IdeaPad S100 Hardware Maintenance Manual
20
percentage of battery power remaining is displayed. To get detailed information
about the battery, double-click the Power Meter icon.
Note: If the battery pack becomes hot, it may not be able to be charged.
Remove it from the computer and leave it at room temperature for a while. After
it cools down, reinstall and recharge it.
To check the battery pack, follow the steps below:
1. Turn off the computer.
2. Remove the battery pack and measure the voltage between battery
terminals 1 (+) and 7 (-). See the following figure:
3. If the voltage is less than +11.0 V DC, the battery pack has been discharged.
Note: Recharging will be continued for at least 3 hours, even though the
indicator does not light on.
If the voltage is still less than +11.0 V DC after recharging, replace the
battery.
4. If the voltage is more than +11.0 V DC, measure the resistance between
battery terminals 5 and 7. The resistance must be 4 to 30 KΩ.
If the resistance is not correct, replace the battery pack. If the resistance is
correct, replace the system board.
1(+)2(+) 3456(-)7(-)
Terminal
1 +0 to +14
7 Ground (-)
Voltage (V DC)
Produktspezifikationen
| Marke: | Lenovo |
| Kategorie: | Laptop |
| Modell: | IdeaPad S100 |
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