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IdeaPad Tablet K1
Hardware
Maintenance
Manual
Page 2
Note:
Before using this information and the product it supports, be sure to read the general information under
“Notices” on page 53.
First Edition (May 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 dened 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.
© 2010 Lenovo
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iii
Contents
About this manual ....................................... iv
Safety information ........................................ 1
General safety ................................................ 2
Electrical safety .............................................. 3
Safety inspection guide .................................. 5
Handling devices that are sensitive to
electrostatic discharge .................................... 6
Grounding requirements ................................. 6
Safety notices: multilingual translations.......... 7
Laser compliance statement......................... 14
Important service information ................... 16
Strategy for replacing FRUs ......................... 16
Strategy for replacing a hard disk drive ............ 17
Important notice for replacing a system
board ................................................................17
Important information about replacing RoHS
compliant FRUs ............................................ 18
General checkout ...................................... 19
What to do rst ............................................. 20
Power system checkout................................ 21
Checking the AC adapter .................................21
Checking the battery pack ............................... 22
Related service information ...................... 23
Restoring the factory contents by using
OneKey Recovery ........................................ 23
Restore of factory default .................................23
Using recovery discs.........................................23
Passwords .................................................... 24
Power-on password ..........................................24
Supervisor password ....................................... 24
Power management ..................................... 25
Screen blank mode ........................................... 25
Sleep (standby) mode ......................................25
Hibernation mode .............................................26
1080
Optical nger navigation (OFN) module ..... 42
1090 Panel support bracket .............................. 43
1100 Integrated camera ....................................44
1110 Antenna assembly .................................... 45
Locations ...................................................... 46
Front view and Right-side view ......................... 46
Bottom and Left-side view ...............................47
Parts list ........................................................ 48
Overall ..............................................................49
Miscellaneous parts ..........................................51
AC adapters ...................................................... 52
Notices......................................................... 53
Trademarks .................................................. 54
Lenovo IdeaPad Tablet K1 ......................... 27
Specications ............................................... 27
FRU replacement notices ............................. 29
Screw notices ..................................................29
Removing and replacing an FRU ................. 30
1010 Base cover ............................................... 31
1020 Battery pack ............................................. 33
1030 Middle cover ............................................34
1040 Docking bracket .......................................35
1050
System board ............................................ 36
1060 Switch board, SD board and
HDMI board ......................................................38
1070 Speaker ...................................................41
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About this manual
This manual contains service and reference informat ion for the following
Lenovo IdeaPad product:
Lenovo IdeaPad Tablet K1
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-specic section includes service, reference, and product-specic •
parts information.
Important:
This manual is intended only for trained servicers who are familiar with Lenovo
IdeaPad products. Use this manual to troubleshoot problems effectively.
Before servicing a Lenovo IdeaPad product, make sure to read all the information
under “Safety information” on page 1 and “Important service information” on
page 16.
iv
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Safety information
This chapter presents the following safety information that you need to get
familiar with before you service an IdeaPad Tablet K1 computer:
• “General safety” on page 2
• “Electrical safety” on page 3
• “Safety inspection guide” on page 5
• “Handling devices that are sensitive to electrostatic discharge” on page 6
• “Grounding requirements” on page 6
• “Safety notices: multilingual translations” on page 7
• “Laser compliance statement” on page 14
Safety information
1
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IdeaPad Tablet K1 Hardware Maintenance Manual
General safety
Follow these rules below to ensure general safety:
Observe a good housekeeping in the area where the machines are put •
during and after the maintenance.
When lifting any heavy object: •
1. Make sure that you can stand safely without slipping.
2. Distribute the weight of the object equally between your feet.
3. Use a slow lifting force. Never move suddenly or twist when you attempt
to lift it.
4. Lift it by standing or pushing up with your leg muscles; this action could
avoid the strain from the muscles in your back. Do not attempt to lift any
object that weighs more than 16 kg (35 lb) or that you think is too heavy
for you.
Do not perform any action that causes hazards to the customer, or that •
makes the machine unsafe.
Before you start the machine, make sure that other service representatives •
and the customer are not in a hazardous position.
Place removed covers and other parts in a safe place, keeping them away •
from all personnel, while you are servicing the machine.
Keep your toolcase away from walk areas so that other people will not trip it •
over.
Do not wear loose clothing that can be trapped in the moving parts of the •
machine. Make sure that your sleeves are fastened or rolled up above your
elbows. If your hair is long, fasten it.
Insert the ends of your necktie or scarf inside clothing or fasten it with the •
nonconductive clip, about 8 centimeters (3 inches) from the end.
Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for •
your clothing.
Attention: Metal objects are good electrical conductors.
Wear safety glasses when you are hammering, drilling, soldering, cutting •
wire, attaching springs, using solvents, or working in any other conditions
that may be hazardous to your eyes.
After service, reinstall all safety shields, guards, labels, and ground wires. •
Replace any safety device that is worn or defective.
Reinstall all covers correctly before returning the machine to the customer.•
Fan louvers on the machine help to prevent the overheating of internal •
components. Do not obstruct fan lou vers or cover them with labels or
stickers.
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Safety information
Electrical safety
Observe the following rules when working on electrical equipments.
Important:
Use only approved tools and test equipments. Some hand tools have handles
covered with a soft material that does not insulate you when working with live
electrical currents.
Many customers have rubber floor mats near their machines that contain small
conductive bers to decrease electrostatic discharges. Do not use such kind of mat
to protect yourself from electrical shock.
Find the room emergency power-off (EPO) switch, disconnecting the switch •
or electrical outlet. If an electrical accident occurs, you can then operate the
switch or unplug the power cord quickly.
Do not work alone under hazardous conditions or near the equipment that •
has hazardous voltages.
Disconnect all power before:•
Before you start to work on the machine, unplug the power cord. If you •
cannot unplug it, ask the customer to power-off the wall box that supplies
power to the machine, and to lock the wall box in the off position.
If you need to work o n a machine that has exposed elec trical circuits, •
observe the following precautions:
Observe the special safety precautions when you work with very high voltages;
instructions for these precautions are in the safety sections of maintenance
information. Be extremely careful when you measure the high voltages.
Regularly inspect and maintain your electrical hand tools for safe operational •
condition.
Do not use worn or broken tools and testers.•
Never assume that power has been disconnected from a circuit. First, check •
it to make sure that it has been powered off.
– Performing a mechanical inspection
– Working near power supplies
– Removing or installing main units
– Ensure that another person, familiar with the power-off controls, is near
you.
Attention: Another person must be there to switch off the power, if
necessary.
– Use only one hand when working with powered-on electrical equipment;
keep the other hand in your pocket or behind your back.
Attention: An electrical shock can occur only when there is a complete
circuit. By observing the above rule, you may prevent a current from
passing through your body.
– When using testers, set the controls correctly and use the approved
probe leads and accessories for that tester.
– Stand on suitable rubber mats (obtained locally, if necessary) to insulate
you from grounds such as metal oor strips and machine frames.
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IdeaPad Tablet K1 Hardware Maintenance Manual
Always look carefully for possible hazards in your work area. Examples of •
these hazards are moist oors, nongrounded power extension cables, power
surges, and missing safety grounds.
Do not touch live electrical circuits with the reflective surface of a plastic •
dental mirror. The surface is conductive; such touching can cause personal
injury and machine damage.
Do not service the following parts with the power on when they are removed •
from their normal operating places in a machine:
– Power supply units
– Pumps
– Blowers and fans
– Motor generators
and similar units. (This practice ensures correct grounding of the units.)
If an electrical accident occurs:•
– Caution: do not become a victim yourself.
– Switch off the power.
– Send the victim to get medical aid.
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Safety information
Safety inspection guide
The purpose of this inspection guide is to assist you in identifying potential
unsafe conditions. As each machine was designed and built, required safety
items were installed to protect users and service personnel from injury. This
guide addresses only those items. You should use good judgment to identify
potential safety hazards according to the attachment of non-Lenovo IdeaPad
features or options not covered by this inspection guide.
If any unsafe conditions are present, you must determine how serious the
apparent hazard could be and whether you can continue without rst correcting
the problem.
Consider these conditions and the safety hazards they present:
Electrical hazards, especially primary power (primary voltage on the frame •
can cause serious or fatal electrical shock)
Explosive hazards, such as a damaged CRT face or a bulging capacitor•
Mechanical hazards, such as loose or missing hardware•
To d etermine whethe r there are any potentia l unsafe conditio ns, use the
following checklist at the beginning of every service task. Begin the checks with
the power off, and the power cord disconnected.
Checklist:
1. Check exterior covers for damage (loose, broken, or sharp edges).
2. Turn off the computer. Disconnect the power cord.
3. Check the power cord for:
a. A third-wire ground connector in good condition. Use a meter to measure
third-wire ground continuity for 0.1 ohm or less between the external
ground pin and the frame ground.
b. The power cord should be the type specied 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 IdeaPad alterations. Use good judgment
as to the safety of any non-Lenovo IdeaPad 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.
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IdeaPad Tablet K1 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 certied (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 specic service requirement.
Note:
The use of a grounding system to guard against ESD damage is desirable but not
necessary.
– Attach the ESD ground clip to any frame ground, ground braid, or green-
wire ground.
– When working on a double-insulated or battery-operated system, use an
ESD common ground or reference point. You can use coax or connectoroutside shells on these systems.
– Use the round ground prong of the ac plug on ac-operated computers.
Grounding requirements
Electrical grounding of the computer is required for operator safety and correct
system function. Proper grounding of the electrical outlet can be veried by a
certied electrician.
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Safety information
Safety notices: multilingual translations
The safety notices in this section are provided in English, French, German,
Hebrew, Italian, Japanese, and Spanish.
Safety notice 1
Before the computer is powered on after FRU replacement, make sure all screws,
springs, and other small parts are in place and are not left loose inside the
computer. Verify this by shaking the computer and listening for rattling sounds.
Metallic parts or metal akes can cause electrical shorts.
Avant de remettre l’ordinateur sous tension après remplacement d’une unité en
clientèle, vériez que tous les ressorts, vis et autres pièces sont bien en place et
bien xées. Pour ce faire, secouez l’unité et assurez-vous qu’aucun bruit suspect
ne se produit. Des pièces métalliques ou des copeaux de métal pourraient causer
un court-circuit.
Bevor nach einem FRU-Austausch der Computer wieder angeschlossen wird,
muß sichergestellt werden, daß keine Schrauben, Federn oder andere Kleinteile
fehlen oder im Gehäuse vergessen wurden. Der Computer muß geschüttelt und auf
Klappergeräusche geprüft werden. Metallteile oder-splitter können Kurzschlüsse
erzeugen.
Prima di accendere l’elaboratore dopo che é stata effettuata la sostituzione di una
FRU, accertarsi che tutte le viti, le molle e tutte le altri parti di piccole dimensioni
siano nella corretta posizione e non siano sparse all’interno dell’elaboratore.
Vericare ciò scuotendo l’elaboratore e prestando attenzione ad eventuali rumori;
eventuali parti o pezzetti metallici possono provocare cortocircuiti pericolosi.
Antes de encender el sistema despues de sustituir una FRU, compruebe que
todos los tornillos, muelles y demás piezas pequeñas se encuentran en su sitio
y no se encuentran sueltas dentro del sistema. Compruébelo agitando el sistema
y escuchando los posibles ruidos que provocarían. Las piezas metálicas pueden
causar cortocircuitos eléctricos.
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IdeaPad Tablet K1 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.
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Safety information
Safety notice 3
DANGER
The battery pack contains small amounts of nickel. Do not disassemble it, throw
it into re or water, or short-circuit it. Dispose of the battery pack as required by
local ordinances or regulations. Use only the battery in the appropriate parts listing
when replacing the battery pack. Use of an incorrect battery can result in ignition
or explosion of the battery.
La batterie contient du nickel. Ne la démontez pas, ne l’exposez ni au feu ni à l’eau.
Ne la mettez pas en court-circuit. Pour la mettre au rebut, conformez-vous à la
réglementation en vigueur. Lorsque vous remplacez la batterie, veillez à n’utiliser
que les modèles cités dans la liste de pièces détachées adéquate. En effet, une
batterie inappropriée risque de prendre feu ou d’exploser.
Akkus enthalten geringe Mengen von Nickel. Sie dürfen nicht zerlegt,
wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden.
Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim
Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste
aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion
führen.
La batteria contiene piccole quantità di nichel. Non smontarla, gettarla nel fuoco
o nell’acqua né cortocircuitarla. Smaltirla secondo la normativa in vigore (DPR
915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la
batteria, utilizzare soltanto i tipi inseriti nell’appropriato Catalogo parti. L’impiego
di una batteria non adatta potrebbe determinare l’incendio o l’esplosione della
batteria stessa.
Las baterías contienen pequeñas cantidades de níquel. No las desmonte, ni
recargue, ni las eche al fuego o al agua ni las cortocircuite. Deséchelas tal como
dispone la normativa local. Utilice sólo baterías que se encuentren en la lista de
piezas al sustituir la batería. La utilización de una batería no apropiada puede
provocar la ignición o explosión de la misma.
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IdeaPad Tablet K1 Hardware Maintenance Manual
Safety notice 4
DANGER
The lithium battery can cause a fire, an explosion, or a severe burn. Do not
recharge it, remove its polarized connector, disassemble it, heat it above 100°C
(212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as
required by local ordinances or regulations. Use only the battery in the appropriate
parts listing. Use of an incorrect battery can result in ignition or explosion of the
battery.
La pile de sauvegarde contient du lithium. Elle présente des risques d’incendie,
d’explosion ou de brûlures graves. Ne la rechargez pas, ne retirez pas son
connecteur polarisé et ne la démontez pas. Ne l’exposez pas à une temperature
supérieure à 100°C, ne la faites pas brûler et n’en exposez pas le contenu à l’eau.
Mettez la pile au rebut conformément à la réglementation en vigueur. Une pile
inappropriée risque de prendre feu ou d’exploser.
Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzünden, explodieren
oder schwere Verbrennungen hervorrufen. Batterien dieses Typs dürfen nicht
aufgeladen, zerlegt, über 100 C erhitzt oder verbrannt werden. Auch darf ihr
Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung
angebrachte Verbindungsstecker entfernt werden. Bei der Entsorgung die örtlichen
Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien
des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher
Batterien kann zu Entzündung oder Explosion führen.
La batteria di supporto e una batteria al litio e puo incendiarsi, esplodere o
procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore polarizzato,
smontarla, riscaldarla ad una temperatura superiore ai 100 gradi centigradi,
incendiarla o gettarla in acqua. Smaltirla secondo la normativa in vigore (DPR
915/82, successive disposizioni e disposizioni locali). L’impiego di una batteria
non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa.
La batería de repuesto es una batería de litio y puede provocar incendios,
explosiones o quemaduras graves. No la recargue, ni quite el conector polarizado,
ni la desmonte, ni caliente por encima de los 100°C (212°F), ni la incinere ni
exponga el contenido de sus celdas al agua. Deséchela tal como dispone la
normativa local.
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Safety information
Safety notice 5
If the LCD breaks and the uid from inside the LCD gets into your eyes or on your
hands, immediately wash the affected areas with water at least for 15 minutes.
Seek medical care if any symptoms caused by the uid are present after washing.
Si le panneau d’afchage à cristaux liquides se brise et que vous recevez dans les
yeux ou sur les mains une partie du uide, rincez-les abondamment pendant au
moins quinze minutes. Consultez un médecin si des symptômes persistent après le
lavage.
Die Leuchtstoffröhre im LCD-Bildschirm enthält Quecksilber. Bei der Entsorgung
die örtlichen Bestimmungen für Sondermüll beachten. Der LCD-Bildschirm
besteht aus Glas und kann zerbrechen, wenn er unsachgemäß behandelt wird
oder der Computer auf den Boden fällt. Wenn der Bildschirm beschädigt ist und
die darin befindliche Flüssigkeit in Kontakt mit Haut und Augen gerät, sollten
die betroffenen Stellen mindestens 15 Minuten mit Wasser abgespült und bei
Beschwerden anschließend ein Arzt aufgesucht werden.
Nel caso che caso l’LCD si dovesse rompere ed il liquido in esso contenuto
entrasse in contatto con gli occhi o le mani, lavare immediatamente le parti
interessate con acqua corrente per almeno 15 minuti; poi consultare un medico se i
sintomi dovessero permanere.
Si la LCD se rompe y el uido de su interior entra en contacto con sus ojos o sus
manos, lave inmediatamente las áreas afectadas con agua durante 15 minutos
como mínimo. Obtenga atención medica si se presenta algún síntoma del uido
despues de lavarse.
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IdeaPad Tablet K1 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.
An 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 sufsamment 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 suciente como para quemar
material combustible o provocar quemaduras en el personal.
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Safety information
Safety notice 8
DANGER
Before removing any FRU, turn off the computer, unplug all power cords from
electrical outlets, remove the battery pack, and then disconnect any interconnecting
cables.
Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension,
débranchez tous les cordons d’alimentation des socles de prise de courant, retirez
la batterie et déconnectez tous les cordons d’interface.
Die Stromzufuhr muß abgeschaltet, alle Stromkabel aus der Steckdose gezogen,
der Akku entfernt und alle Verbindungskabel abgenommen sein, bevor eine FRU
entfernt wird.
Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese
elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i cavi
di interconnessione.
Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de
las tomas de corriente eléctrica, quite la batería y, a continuación, desconecte
cualquier cable de conexión entre dispositivos.
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IdeaPad Tablet K1 Hardware Maintenance Manual
Laser compliance statement
Some models of Lenovo IdeaPad 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 certied 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
specied herein might result in hazardous radiation exposure.
O uso de controles, ajustes ou desempenho de procedimentos diferentes daqueles
aqui especicados 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
specicate possono provocare l’esposizione a.
El uso de controles o ajustes o la ejecución de procedimientos distintos de los aquí
especicados puede provocar la exposición a radiaciones peligrosas.
Opening the CD-ROM drive, the DVD-ROM drive, or any other optical storage
device could result in exposure to hazardous laser radiation. There are no
serviceable parts inside those drives. Do not open.
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15
Safety information
A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may
contain an embedded Class 3A or Class 3B laser diode. Note the following:
DANGER
Emits visible and invisible laser radiation when open. Do not stare into the beam,
do not view directly with optical instruments, and avoid direct exposure to the
beam.
Radiação por raio laser ao abrir. Não olhe fixo no feixe de luz, não olhe
diretamente por meio de instrumentos óticos e evite exposição direta com o feixe
de luz.
Rayonnement laser si carter ouvert. Évitez de fixer le faisceau, de le regarder
directement avec des instruments optiques, ou de vous exposer au rayon.
Laserstrahlung bei geöffnetem Gerät. Nicht direkt oder über optische Instrumente
in den Laserstrahl sehen und den Strahlungsbereich meiden.
Kinyitáskor lézersugár ! Ne nézzen bele se szabad szemmel, se optikai
eszközökkel. Kerülje a sugárnyalábbal való érintkezést!
Aprendo l’unità vengono emesse radiazioni laser. Non fissare il fascio, non
guardarlo direttamente con strumenti ottici e evitare l’esposizione diretta al fascio.
Radiación láser al abrir. No mire jamente ni examine con instrumental óptico el
haz de luz. Evite la exposición directa al haz.
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IdeaPad Tablet K1 Hardware Maintenance Manual
Important service information
This chapter presents the following important service information:
• “Strategy for replacing FRUs” on page 16
– “Strategy for replacing a hard disk drive” on page 17
– “Important notice for replacing a system board ” on page 17
• “Important information about replacing RoHS compliant FRUs” on page 18
Important:
BIOS and device driver xes are customer-installable. The BIOS and device
drivers are posted on the customer support site:
http://consumersupport.lenovo.com/.
Strategy for replacing FRUs
Before replacing parts:
Make sure that all software xes, drivers, and BIOS downloads are installed
before replacing any FRUs listed in this manual.
After a system board is replaced, ensure that the latest BIOS is loaded to the
system board before completing the service action.
To download software xes, drivers, and BIOS, follow the steps below:
1. Go to http://consumersupport.lenovo.com/.
2. Enter a serial number or select a product or use Lenovo smart downloading.
3. Select the BIOS/Driver/Applications and download.
4. Follow the directions on the screen and install the necessary software.
Page 21
17
Important service information
Use the following strategy to prevent unnecessary expense for replacing and
servicing FRUs:
If you are instructed to replace an FRU, but the replacement does not solve •
the problem, reinstall the original FRU before you continue.
Some computers have both a processor board and a system board. If you •
are instructed to replace either of them, and replacing one of them does not
solve the problem, reinstall that board, and then replace the other one.
If an adapter or a device consists of more than one FRU, any of the FRUs •
may be the cause of the error. Before replacing the adapter or device,
remove the FRUs one by one to see if the symptoms change. Replace only
the FRU that changed the symptoms.
Attention: The setup configuration on the computer you are servicing may
have been customized. Running A utomati c Con figurat ion m ay alter the
settings. Note the current conguration settings (using the View Conguration
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.
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IdeaPad Tablet K1 Hardware Maintenance Manual
Important information about replacing RoHS compliant FRUs
RoHS, T he Restriction of Hazardous Sub sta nce s in Electrical and
Electronic Equipment Directive (2002/95/EC) is a European Union legal
requirement affecting the global electronics industry. RoHS requirements
must be implemented on Lenovo products placed on the market after
June 2006. Products on the market before June 2006 are not required to
have RoHS compliant parts. If the original FRU parts are non-compliant,
replacement parts can also be non-compliant. In all cases if the original
FRU parts are RoHS compliant, the replacement part must also be RoHS
compliant.
Note: RoHS and non-RoHS FRU part numbers with the same t and function
are identied with unique FRU part numbers.
Lenovo plans to transit to RoHS compliance well before the implementation
date and expects its suppliers to be ready to support Lenovo’s requirements
and schedule in the EU. Products sold in 2005 and 2006 will contain some
RoHS compliant FRUs. The following statement pertains to these products and
any product Lenovo produces containing RoHS compliant FRUs.
RoHS compliant FRUs have unique FRU part numbers. Before or after the
RoHS i mplementation date, failed RoHS compliant parts must always be
replaced with RoHS compliant ones, so only the FRUs identied as compliant
in the system HMM or direct substitutions for those FRUs may be used.
Products marketed before June 2006 Products marketed after June 2006
Current or
original part
Non-RoHS Can be Non-RoHS
Non-RoHS Can be RoHS
Non-RoHS Can sub to RoHS
RoHS Must be RoHS
Note: A direct substitution is a part with a different FRU part number that is
automatically shipped by the distribution center at the time of the order.
Replacement FRU Current or
original part
Must be RoHS Must be RoHS
Replacement FRU
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19
General checkout
General checkout
This chapter presents the following information:
• “What to do rst” on page 20
• “Power system checkout” on page 21
Before you go to the checkout, make sure to read the following important notes:
Important notes:
• Onlycertiedtrainedpersonnelcanservicethecomputer.
• Beforereplacingany FRU,read theentire pageonremovingandreplacing
FRUs.
• WhenyoureplaceFRUs,usenewnylon-coatedscrews.
• Be extremelycareful duringsuchwrite operationsascopying, 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.
• ReplaceanFRUonly with anotherFRUofthecorrect 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 shouldnotbereplacedjustbecause 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.
• BecarefulnottoreplaceanondefectiveFRU.
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IdeaPad Tablet K1 Hardware Maintenance Manual
What to do rst
When you do return an FRU, you must include the following information in the
parts exchange form or parts return form that you attach to it:
1. Name and phone number of servicer
2. Date of service
3. Date on which the machine failed
4. Date of purchase
5. Procedure index and page number in which the failing FRU was detected
6. Failing FRU name and part number
7. Machine type, model number, and serial number
8. Customer’s name and address
Note for warranty: Du ring the war ran ty per iod , th e cu stomer may be
responsible for repair costs if the computer damage was caused by misuse,
acc ident, modification , unsuita ble p hysical o r operati ng envir onment, or
improper maintenance by the customer.
The following is a list of some common items that are not covered under
warranty a nd some sympto ms that might i ndi cat e that the system w as
subjected to stress beyond normal use.
Before checking problems with the computer, determine whether the damage is
covered under the warranty by referring to the following list:
The following are not covered under warranty:
LCD panel cracked from the application of excessive force or from being •
dropped
Scratched (cosmetic) parts•
Distortion, deformation, or discoloration of the cosmetic parts•
Plastic parts, latches, pins, or connectors that have been cracked or broken •
by excessive force
Damage caused by liquid spilled into the system•
Damage caused by the improper insertion of a PC Card or the installation of •
an incompatible card
Improper • disc insertion or use of an optical drive
Diskette drive damage caused by pressure on the diskette drive cover, •
foreign material in the drive, or the insertion of a diskette with multiple labels
Damaged or bent diskette eject button•
Fuses blown by attachment of a nonsupported device•
Forgotten computer password (making the computer unusable)•
Sticky keys caused by spilling a liquid onto the keyboard•
Use of an incorrect AC adapter on laptop products•
The following symptoms might indicate damage caused by nonwarranted
activities:
Missing parts might be a symptom of unauthorized service or modication. •
If the spindle of a hard disk drive becomes noisy, it may have been subjected •
to excessive force, or dropped.
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21
General checkout
Power system checkout
Voltage (V DC)
+20
0
Pin
1
2
1
2
If you suspect a power problem, see the appropriate one of the following power
supply checkouts:
• “Checking the AC adapter ” 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.
To check the AC adapter, follow the steps below:
1. Unplug the AC adapter cable from the tablet.
2. Measure the output voltage at the plug of the AC adapter cable. See the
following gure:
Note: Output voltage for the AC adapter pin No. 2 may differ from the one you
are servicing.
3. If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following:
Replace the system board.•
If the problem continues, go to • “Lenovo IdeaPad Tablet K1” on page 27.
Note: Noise from the AC adapter does not always indicate a defect.
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IdeaPad Tablet K1 Hardware Maintenance Manual
Terminal
1 +0 to +8.4
14 Ground (-)
Voltage (V DC)
14(-)
13(-)
10
9
8
7
4(+)
3(+)
2(+)
1(+)
12(-)
11(-)
5
6
Checking the battery pack
Battery charging does not start until the Power Meter shows that less than 95%
of the total power remains; under this condition the battery pack can charge to
100% of its capacity. This protects the battery pack from being overcharged or
from having a shortened life.
To check your battery, move your cursor to the Power Meter icon in the icon
tray of the Windows® taskbar and wait for a moment (but do not click it), and the
percentage of battery power remaining is displayed. To get detailed information
about the battery, double-click the Power Meter icon.
Note: If the battery pack becomes hot, it may not be able to be charged.
Remove it from the computer and leave it at room temperature for a while. After
it cools down, reinstall and recharge it.
To check the battery pack, follow the steps below:
1. Turn off the computer. Follow the removal steps in “1020 Battery pack” on
page 33 in “Removing and replacing an FRU” on page 30.
2. Measure the voltage between battery terminals 1 (+) and 14 (-). See the
following gure:
3. If the volta ge is les s than +11. 0 V D C, the batte ry pac k ha s been
discharged.
Note: Recharging will be continued for at least 3 hours, even though the
indicator does not light on.
If the voltage is still less than +11.0 V DC after recharging, replace the
battery.
4. If the voltage is more than +11.0 V DC, measure the resistance between
battery terminals 5 and 7. The resistance must be 4 to 30 KΩ.
If the resistance is not correct, replace the battery pack. If the resistance is
correct, replace the system board.
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23
Related service information
Related service information
This chapter presents the following information:
• “Restoring the factory contents by using OneKey Recovery” on page 23
• “Passwords” on page 24
• “Power management” on page 25
Restoring the factory contents by using OneKey Recovery
Restore of factory default
The IdeaPad Tablet K1 computers come with pre-installed OneKey Rescue
System. In order to save application les and the initial backed up les of the
system, the hard disk in a Lenovo computer includes a hidden partition when it
is shipped. If you need to restore the system to the point of your rst boot up,
just enter Lenovo OneKey Rescue System and run Restore to factory default.
For details of OneKey Rescue System, see
System
.
This will delete all the new data on the system partition (C drive), which
Note:
is not recoverable. Make sure to back up your critical data before you perform this
action.
Using recovery discs
When you replace a hard disk drive in your computer, you are unable to use
the pre-installed Lenovo OneKey Recovery and OneKey Rescue. However, you
can use the recovery discs that store your backed up data to restore your new
hard drive to a previous backup status.
the User Guide for OneKey Rescue
You can create recovery discs by burning the backup image to a CD/DVD
Note:
as recovery discs. For details of Createrecovery discs, see the User Guide for
OneKey Rescue System.
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IdeaPad Tablet K1 Hardware Maintenance Manual
When you use the recovery discs to boot your computer, the system will enter
the user interface for system recovery automatically. Please follow the prompt
to insert the backup discs to complete the whole recovery process.
The recovery process might take up to 2 hours.
Note:
Passwords
As many as two passwords may be needed for any Lenovo IdeaPad computer:
the power-on password (POP) and the supervisor password (SVP).
If any of these passwords has been set, a prompt for it appears on the screen
whenever the computer is turned on. The computer does not start until the
password is entered.
Exception: If only an SVP is installed, the password prompt does not appear
when the operating system is booted.
Power-on password
A power-on password (POP) protects the system from being powered on by
an unauthorized person. The password must be entered before an operating
system can be booted.
Supervisor password
A supervisor password (SVP) protects the system information stored in the
BIOS Setup Utility. The user must enter the SVP in order to get access to the
BIOS Setup Utility and change the system conguration.
Attention: If the SVP has been forgotten and cannot be made available to
the servicer, there is no service procedure to reset the password. The system
board must be replaced for a scheduled fee.
Page 29
25
Related service information
Power management
Note: Power management modes are not supported for APM operating system.
To reduce power consumption, the computer has three power management
modes: screen blank, sleep (standby), and hibernation.
Screen blank mode
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
Power button.
To end screen blank mode and resume normal operation, press Power button.
Sleep (standby) mode
When the computer enters sleep (standby) mode, the following events occur in
addition to what occurs in screen blank mode:
The LCD is powered off.•
The hard disk drive is powered off.•
The CPU stops.•
To enter sleep (standby) mode, press Power button.
In certain circumst ances, the comput er goes into sleep (standby) mode
automatically:
If a “suspend time” has been set on the timer, and the user does not do any •
operation with the keyboard, the hard disk, the parallel connector, or the
diskette drive within that time.
If the battery indicator • starts blinking, indicating that the battery power is low.
(Alternatively, if Hibernate when battery becomes low has been selected
in the “Power Management Properties” window, the computer goes into
hibernation mode.)
To cause the computer to return from sleep (standby) mode and resume the
operation, do the following:
Turn on the power switch.•
Also, in the following event, the computer automatically returns from sleep
(standby) mode and resumes the operation:
The time set on the resume timer elapses.•
Note: The computer does not accept any input immediately after it enters
sleep (standby) mode. Wait a few seconds before taking any action to reenter
operation mode.
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IdeaPad Tablet K1 Hardware Maintenance Manual
Hibernation mode
In hibernation mode, the following occurs:
The system status, RAM, VRAM, and setup data are stored on the hard disk.•
The system is powered off.•
To cause the computer to enter hibernation mode, follow the steps below:
If you are using the ACPI operating system and have defined one of the •
following actions as the event that causes the system to go into hibernation
mode, perform that action:
– Pressing the power button.
Also, the computer goes into hibernation mode automatically in either of the
following conditions:
If a “hibernation time” has been set on the timer, and if the user does not do •
any operation with the tablet, the hard disk drive, the parallel connector, or
the diskette drive within that time.
If the timer conditions are satised in suspend mode.•
When the power is turned on, the computer returns from hibernation mode and
resumes operation. The hibernation le in the boot record on the hard disk drive
is read, and system status is restored from the hard disk drive.
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Lenovo IdeaPad Tablet K1
Lenovo IdeaPad Tablet K1
This chapter presents the following product-specific service references and
product-specic parts information:
• “Specications” on page 27
• “FRU replacement notices” on page 29
• “Removing and replacing an FRU” on page 30
• “Locations” on page 46
• “Parts list” on page 48
Specications
The following table lists the specications of the Lenovo IdeaPad Tablet K1:
Table 1. Specications
Feature Description
Processor • Nvidia Tegra2 T20 1.0GHzl
Core Chipset • SOC
Graphic memory
chip
Display • 10.1W, LED backlight
Standard
memory
Solid State
Drive
Optical drive • N/A
I/O port • USB 2.0 port × 1
MODEM slot • N/A
Audio • Combo audio jack × 1
Video • N/A
PCI Express
Mini Card slot
Bluetooth
wireless
Keyboard • N/A
Touch screen • Support Multi-touch
Integrated
camera
• Intel Intergrated
• 1280x800 pixels (300 nit)
• LPDDR2 600MHz
• 1GB (on board)
• 16G/32G, OS and data storage/on board
• MicroSD slot × 1
• Combo audio jack × 1
• Microphone hole × 1
• Speaker × 2
• HDMI port × 1
• Wireless LAN MiniCard (PCIe) slot x 1(half size)
• Built-in antenna with min-USB interface, select Models
• 2.0MP on front/5MP on back
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IdeaPad Tablet K1 Hardware Maintenance Manual
Table 1. Specications (continued)
Feature Description
Battery
ACadapter
Pre-installed
operating
system
• 2cell/27.4WH
• 20VDC,18W
• Android3.0
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29
Lenovo IdeaPad Tablet K1
FRU replacement notices
more than 90°
(Cross-section)
more than 180°
(Cross-section)
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 IdeaPad computer,
this problem is addressed with special nylon-coated screws that have the
following characteristics:
They maintain tight connections.•
They do not easily come loose, even with shock or vibration.•
They are harder to tighten.•
Each one should be used only once.•
Do the following when you service this machine:
Keep the screw kit in your tool bag.•
Always use new screws.•
Use a torque screwdriver if you have one.•
Tighten screws as follows:
Plastic to plastic•
Turn an additional 90° after the screw head touches the surface of the
plastic part:
Logic card to plastic •
Turn an additional 180° after the screw head touches the surface of the
logic card:
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 rmly.
Ensure torque screwdrivers are calibrated correctly followin g cou ntry •
specications.
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IdeaPad Tablet K1 Hardware Maintenance Manual
Removing and replacing an FRU
This section presents exploded gures 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
certied. An untrained person runs the risk of damaging parts.
2. Before replacing any FRU, review “FRU replacement notices” on page 29.
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
gures 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 gure.
6. When removing the FRU, move it in the direction as given by the arrow in
the gure.
7. To put the new FRU in place, reverse the removal procedures and follow
any of the n ote s that pert ain to replacement. For info rma tio n about
connecting and arranging internal cables, see “Locations” on page 46.
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 akes can cause electrical
short circuits.
Attention: The system b oar d is sensiti ve to, a nd can b e 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.
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31
Lenovo IdeaPad Tablet K1
2
1
1010 Base cover
Figure 1. Removal steps of base cover
Remove the base cover in the direction shown by arrows 1 2.
Note: Turn off the tablet rst. Otherwise, it may cause permanent damage to
the tablet.
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IdeaPad Tablet K1 Hardware Maintenance Manual
a
b
Note: Applying labels to the base cover
The new base cover FRU is shipped with a kit containing labels of several
kinds. When you replace the base cover, you need to apply the following
label:
The following labels need to be peeled off from the old base cover, and need
to be put on the new base cover.
a
3G Label
b
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, nd 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 gure:
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Lenovo IdeaPad Tablet K1
1
1
1
1
2
3
1020 Battery pack
For access, remove this FRU:
• “1010 Base cover” on page 31
DANGER
Only use the battery specied in the parts list for your computer. Any other battery
could ignite or explode.
Figure 2. Removal steps of battery pack
Remove four screws 1. Disconnect the connector in the direction shown by
arrow 2.
Step Screw (quantity) Color Torque
1
Remove the battery pack in the direction shown by arrow 3.
M4.5 x 3 mm, at-head, nylon-coated (4) Silver 1.5-2.0 kg/cm
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IdeaPad Tablet K1 Hardware Maintenance Manual
1
1
1
1
2
2
3
3
3
1030 Middle cover
For access, remove these FRUs in order:
• “1010 Base cover” on page 31
• “1020 Battery pack” on page 33
Figure 3. Removal steps of middle cover
Remove four screws 1 and two screws 2. Remove the middle cover in the
direction shown by arrow 3.
Step Screw (quantity) Color Torque
1
2
M4.5 x 5 mm, at-head, nylon-coated (4) Silver 1.5-2.0 kg/cm
M3.7 x 3.5 mm, at-head, nylon-coated (2) Silver 1.5-2.0 kg/cm
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35
Lenovo IdeaPad Tablet K1
1
1
2
1040 Docking bracket
For access, remove these FRUs in order:
• “1010 Base cover” on page 31
• “1020 Battery pack” on page 33
• “1030 Middle cover” on page 34
Figure 4. Removal steps of docking bracker
Remove two screws 1 and then remove the docking bracker in the direction
shown by arrow 2.
Step Screw (quantity) Color Torque
1
M4.5 x 3 mm, at-head, nylon-coated (2) Silver 1.5-2.0 kg/cm
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IdeaPad Tablet K1 Hardware Maintenance Manual
3
1
2
2
2
2
2
2
1
1
1050
System board
Important notices for handling the system board:
When handling the system board, bear the following in mind.
• Be careful not to drop the system board on a bench top that has a hard surface,
such as metal, wood, or composite.
• Avoid rough handling of any kind.
• In the whole process, make sure not to drop or stack the system board.
• If you put a system board down, make sure to put it only on a padded surface such
as an ESD mat or conductive corrugated material.
For access, remove these FRUs in order:
• “1010 Base cover” on page 31
• “1020 Battery pack” on page 33
• “1030 Middle cover” on page 34
• “1040 Docking bracket” on page 35
Figure 5. Removal steps of system board
Detach 10 connectors on system board in the direction shown by arrows 1 2
. Remove ve screws 4.
3
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Lenovo IdeaPad Tablet K1
4
4
4
4
4
5
Figure 5. Removal steps of system board (continued)
When installing: Make sure that all the connectors are attached rmly.
Step Screw (quantity) Color Torque
4
Remove the system board in the direction shown by arrow 5.
M4.5 x 3 mm, at-head, nylon-coated (5) Silver 1.5-2.0 kg/cm
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IdeaPad Tablet K1 Hardware Maintenance Manual
1
1
2
1060 Switch board, SD board and HDMI board
For access, remove these FRUs in order:
• “1010 Base cover” on page 31
• “1020 Battery pack” on page 33
• “1030 Middle cover” on page 34
• “1040 Docking bracket” on page 35
• “1050 System board” on page 36
Figure 6. Removal steps of Switch board, SD board and HDMI board
Remove two screws 1, then remove the switch board in the direction shown
by arrow 2.
Step Screw (quantity) Color Torque
1
M4.5 x 3 mm, at-head, nylon-coated (2) Silver 1.5-2.0 kg/cm
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Lenovo IdeaPad Tablet K1
3
4
3
5
5
6
Figure 6. Removal steps of Switch board, SD board and HDMI board (continued)
Remove two screws 3, then remove the SD board in the direction shown by
arrow 4.
Remove two screws 5, then remove the SD board bracket in the direction
shown by arrow 6.
Step Screw (quantity) Color Torque
3
5
M4.5 x 3 mm, at-head, nylon-coated (2) Silver 1.5-2.0 kg/cm
M4.5 x 3 mm, at-head, nylon-coated (2) Silver 1.5-2.0 kg/cm
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IdeaPad Tablet K1 Hardware Maintenance Manual
7
8
7
Figure 6. Removal steps of Switch board, SD board and HDMI board (continued)
Remove two screws 7, then remove the docking board in the direction shown
by arrow 8.
Step Screw (quantity) Color Torque
7
M4.5 x 3 mm, at-head, nylon-coated (2) Silver 1.5-2.0 kg/cm
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Lenovo IdeaPad Tablet K1
1070 Speaker
1
1
For access, remove these FRUs in order:
• “1010 Base cover” on page 31
• “1020 Battery pack” on page 33
• “1030 Middle cover” on page 34
• “1040 Docking bracket” on page 35
• “1050 System board” on page 36
• “1060 Switch board, SD board and HDMI board” on page 38
Figure 7. Removal steps of Speaker
Remove the speaker in the direction shown by arrows 1.
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IdeaPad Tablet K1 Hardware Maintenance Manual
2
1
1
1080
Optical nger navigation (OFN) module
For access, remove these FRUs in order:
• “1010 Base cover” on page 31
• “1020 Battery pack” on page 33
• “1030 Middle cover” on page 34
• “1040 Docking bracket” on page 35
• “1050 System board” on page 36
• “1060 Switch board, SD board and HDMI board” on page 38
• “1070 Speaker” on page 41
Figure 8. Removal steps of optical nger navigation (OFN) module
Remove two screws 1 and then remove the optical nger navigation (OFN)
module bracket and the module in the direction shown by arrow 2.
Step Screw (quantity) Color Torque
1
M4.5 x 3 mm, at-head, nylon-coated (2) Silver 1.5-2.0 kg/cm
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Lenovo IdeaPad Tablet K1
1
2
2
1
1090 Panel support bracket
For access, remove these FRUs in order:
• “1010 Base cover” on page 31
• “1020 Battery pack” on page 33
• “1030 Middle cover” on page 34
• “1040 Docking bracket” on page 35
• “1050 System board” on page 36
• “1060 Switch board, SD board and HDMI board” on page 38
• “1070 Speaker” on page 41
• “1080 Optical nger navigation (OFN) module” on page 42
Figure 9. Removal steps of panel support bracket
Remove two screws 1, then remove the panel support bracket in the direction
shown by arrow 2.
Step Screw (quantity) Color Torque
1
M4.5 x 5 mm, at-head, nylon-coated (2) Silver 1.5-2.0 kg/cm
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IdeaPad Tablet K1 Hardware Maintenance Manual
1
2
1100 Integrated camera
For access, remove these FRUs in order:
• “1010 Base cover” on page 31
• “1020 Battery pack” on page 33
• “1030 Middle cover” on page 34
• “1040 Docking bracket” on page 35
• “1050 System board” on page 36
• “1060 Switch board, SD board and HDMI board” on page 38
• “1070 Speaker” on page 41
• “1080 Optical nger navigation (OFN) module” on page 42
• “1090 Panel support bracket” on page 43
Figure 10. Removal steps of integrated camera
Note: Remove one screw 1, and then remove the integrated camera from the
LCD cover in the direction shown by arrow 2.
Step Screw (quantity) Color Torque
1
When installing: Stick the integrated camera to the top center of the LCD
cover and ajust the placement of it to make sure the connector is attached
rmly.
M4.5 x 3 mm, at-head, nylon-coated (1) Silver 1.5-2.0 kg/cm
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Lenovo IdeaPad Tablet K1
1
1110 Antenna assembly
For access, remove these FRUs in order:
• “1010 Base cover” on page 31
• “1020 Battery pack” on page 33
• “1030 Middle cover” on page 34
• “1040 Docking bracket” on page 35
• “1050 System board” on page 36
• “1060 Switch board, SD board and HDMI board” on page 38
• “1070 Speaker” on page 41
• “1080 Optical nger navigation (OFN) module” on page 42
• “1090 Panel support bracket” on page 43
Figure 13. Removal steps of antenna assembly
Peel off the adhesive tapes securing the antenna boards, and then remove the
antenna assembly in the direction shown by arrows 1.
When installing: Route the antenna cables along the cable guides and secure
the antenna boards with adhesive tapes. As you route the cables, make sure
that they are not subjected to any tension. Tension could cause the cables to
be damaged by the cable guides, or a wire to be broken.
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IdeaPad Tablet K1 Hardware Maintenance Manual
1
2
3
4
5
6
Locations
Front view and Right-side view
Integrated camera
1
Wireless module antennas (Select models only)
2
OFN button
3
Data/power jack
4
Earphone/Microphone jack
5
Micro HDMI port
6
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Lenovo IdeaPad Tablet K1
Bottom and Left-side view
3
2
4
5
6
1
Integrated camera
1
Built-in microphone
2
Power button
3
Volume button
4
Screen rotation lock
5
Micro SD slot
6
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IdeaPad Tablet K1 Hardware Maintenance Manual
Parts list
This section presents the following service parts:
• “Overall” on page 49
• “Miscellaneous parts” on page 51
• “AC adapters” on page 52
Notes:
• Each FRU is available for all types or models, unless specic types or models
are specied.
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Lenovo IdeaPad Tablet K1
a
b
c
i
d
6
7
f
8
h
12
1
2
4
5
e
9
3
10
g
11
13
Overall
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IdeaPad Tablet K1 Hardware Maintenance Manual
Table 2. Parts list—Overall
No. FRU FRU no.
1 PQXU2 LCD SUB ASSY-SILVER 18005057
1 PQXU2 LCD SUB ASSY-GRAY 18005058
2 PQXU2 WEBCAMERA CABLE FOR 2.OM-3G 31050839
2 PQXU2 WEBCAMERA CABLE FOR 2.0M-NON 3G 31050840
PQXU2 WEBCAMERA 2.0M 31050837
3
PQXU2 WEBCAMERA 5.0M 31050838
3
4 PQXU2 ANTENNA FOR 3G 31050898
4 PQXU2 ANTENNA FOR GPS 31050899
5 PQXU1 OPTICAL FINGER NAVIGATION MODULE 31047864
6 PQXU1 SPEAKER L+R0 31047873
7 PQXU2 SWITCH BOARD W/FFC
PQXU2 SD BOARD 31050830
8
9 PQXU2 HDMI BOARD 31050832
10 PQXU2 MB W/WIFI/BT/3G-32G 11013782
10 PQXU2 MB W/WIFI/BT/GPS-32G 11013783
11 PQXU2 LCD COVER FRAME SILVER FOR 3G 31050823
11 PQXU2 LCD COVER FRAME SILVER FOR NO 3G 31050824
11 PQXU2 LCD COVER FRAME GRAY FOR 3G 31050827
11 PQXU2 LCD COVER FRAME GRAY FOR NO 3G 31050828
12 Battery, U1 Slate Battery 2S1P 7.4V/27.38Wh, U1 SMP
L10M2I21 2S1P 27Wh battery
Battery, 3180mAh 2cell, U1 sanyo L10S2P21 2S1P 23.5Wh
12
Polymer bty
13 PQXU2 LCD COVER LEATHER-BLACK 31050819
13 PQXU2 LCD COVER LEATHER-BROWN 31050820
13 PQXU2 LCD COVER IMR-WHITE 31050821
13 PQXU2 LCD COVER IMR-RED 31050822
31050829
121001054
121001185
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Lenovo IdeaPad Tablet K1
Miscellaneous parts
Table 3. Parts list—Miscellaneous parts
FRU P/N
System miscellaneous parts:
• (a) PQXU1 POWER BUTTON-GRAY
• (a) PQXU1 POWER BUTTON-SILVER
• (b) PQXU1 VOLUME BUTTON-GRAY
• (b) PQXU1 VOLUME BUTTON-SILVER
• (c) PQXU1 G-LOCK BUTTON-GARY
• (c) PQXU1 G-LOCK BUTTON-SILVER
• (d) PQXU2 LCD PANEL SUPPORT BRACKET
• (e) PQXU1 OFN MODULE BRACKET
• (f) PQXU2 SD BOARD BRACKET
• (g) PQXU1 DOCKING BRACKET
• (h) PQXU2 SD CARD LATCH
Cable miscellaneous parts:
• (i) PQXU2 TOUCH SCREEN CABLE
Note: Italicized letters in parentheses are references to the
exploded view in “Overall” on page 49 .
31047866
31047867
31047868
31047869
31047870
31047871
31050836
31047877
31050833
31047876
31050835
31050841
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IdeaPad Tablet K1 Hardware Maintenance Manual
AC adapters
Table 4. Parts list—3-pin AC adapters
FRU P/N
AC Adapter(30 pin 12V 18W), AC ADAP DELTA EAPD-18SB AA
12V1.5A CH (China)
AC Adapter(30 pin 12V 18W), Delta EADP-18SB JA 12V1.5A
(Argentina)
AC Adapter(30 pin 12V 18W), AC ADAP DELTA EAPD-18SB BA
12V1.5A US (US/Canada/Japan/Taiwan)
AC Adapter(30 pin 12V 18W), AC ADAP DELTA EAPD-18SB DA
12V1.5A UK(UK)
AC Adapter(30 pin 12V 18W), Delta EADP-18SB GA 12V1.5A
(Korea)
AC Adapter(30 pin 12V 18W), AC ADAP DELTA EADP-18SB EA
12V1.5A AUS (Australia)
AC Adapter(30 pin 12V 18W), Delta EADP-18SB KA 12V1.5A
(South Africa)
AC Adapter(30 pin 12V 18W), AC ADAP DELTA EAPD-18SB CA
12V1.5A EU (Europe/ Denmark/Switzerland / Italy/Israel)
AC Adapter(30 pin 12V 18W), Delta ADP-18AW AA 12V1.5A
(China)
AC Adapter(30 pin 12V 18W), Delta ADP-18AW JA 12V1.5A
(Argentina)
AC Adapter(30 pin 12V 18W), Delta ADP-18AW KA 12V1.5A
(Brazil)
AC Adapter(30 pin 12V 18W), Delta ADP-18AW BA 12V1.5A (US/
Canada/Japan/Taiwan)
AC Adapter(30 pin 12V 18W), Delta ADP-18AW DA 12V1.5A (UK) 36200007
AC Adapter(30 pin 12V 18W), Delta ADP-18AW HA 12V1.5A
(India)
AC Adapter(30 pin 12V 18W), Delta ADP-18AW GA 12V1.5A
(Korea)
AC Adapter(30 pin 12V 18W), Delta ADP-18AW EA 12V1.5A
(Australia)
AC Adapter(30 pin 12V 18W), Delta ADP-18AW MA 12V1.5A
(South Africa)
AC Adapter(30 pin 12V 18W), Delta ADP-18AW CA 12V1.5A
(Europe/ Denmark/Switzerland / Italy/Israel)
36002021
36200002
36002020
36002018
36200001
36002017
36200003
36002019
36200004
36200011
36200012
36200005
36200017
36200010
36200008
36200013
36200006
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Notices
Notices
Lenovo may not offer the products, services, or features discussed in this
document in all countrie s. Consult your local Lenovo representati ve 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 info rmation herein; these changes
will be incorporated in new editions of the publication. Lenovo may make
improvements and/or cha nge s in the product(s) and/or the pro gra m(s )
described in this publication at any time without notice.
Th e produc ts des cribe d in thi s docu ment are not in tende d 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 specications 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 specic 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.
Page 58
IdeaPad Tablet K1 Hardware Maintenance Manual
Any perf ormance data containe d her ein w as determined in a cont rolled
environment. Therefore, the result obtained in other operating environments
may va ry signif ica ntly. So me measureme nts may have been made on
development-level systems and there is no guarantee that these measurements
wi ll be the same on gen erall y ava ilabl e system s. Fur th ermor e, som e
measurements may have been estimated through extrapolation. Actual results
may vary. Users of this document should verify the applicable data for their
specic environment.
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The following terms are either registered trademarks or trademarks of Lenovo
in the United States and/or other countries:
Microsoft and Windows are trademarks of Microsoft Corporation in the United
States, other countries, or both.
The following are trademarks of Intel Corporation or its subsidiaries in the
United States, other countries, or both:
®
Lenovo
Lenovo logo
IdeaPad
®
®
OneKey
®
Intel
Intel® Core™ 2 Duo
54
Other company, product, or service names may be the trademarks or service
marks of others.
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