ꢀꢁꢂ
IBM Mobile Systems
ThinkPad Computer
Hardware Maintenance Manual
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Contents
iii
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iv ThinkPad A21e
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Introduction
Important service information
Important
Diskette fixes are customer-installable. The diskette
fixes are posted on the IBM support site
(http://www.pc.ibm.com/support/).
Advise customers to contact the PC Company
HelpCenter at 800-772-2227 if they need assistance
in obtaining or installing any diskette fixes.
Customers in Canada should call IBM HelpPC at
800-565-3344 for assistance or download
information.
Strategy for replacing FRUs
Before replacing parts
Make sure that all diskette fixes are installed before
replacing any FRUs listed in this manual.
Use the following strategy to prevent unnecessary FRU
replacement and service expense:
v
If you are instructed to replace a FRU but the
replacement does not correct the problem, reinstall
the original FRU before you continue.
v
Some computers have both a processor board and a
system board. If you are instructed to replace either the
processor board or the system board, and replacing one
of them does not correct the problem, reinstall that
board, and then replace the other one.
v
If an adapter or 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.
1
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Important service information
Attention
The setup configuration on the computer you are
servicing may have been customized. Running
Automatic Configuration may alter the settings. Note
the current configuration settings (using the View
Configuration option); then, when service has been
completed, verify that those settings remain in
effect.
Strategy for replacing a hard-disk drive
Always try to run a low-level format before replacing a
hard-disk drive.
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.
How to use error messages
Use the error codes displayed on the screen to diagnose
failures. If more than one error code is displayed, begin the
diagnosis with the first error code. Whatever causes the
first error code may also cause false error codes. If no
error code is displayed, see if the error symptom is listed
in the Symptom-to-FRU Index for the computer you are
servicing.
Diskette compatibility matrix
The compatibility of each of the drives with the diskettes
for it is as follows:
Diskette
drive
Diskette
capacity
Compatibility
3.5-inch
1.0 MB
2.0 MB
4.0 MB
Read and write
Read and write
Not compatible
2
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Safety notices
Safety notices: multilingual translations
In this manual, safety notices appear in English with a
page number reference to the appropriate translation in
this section.
The safety notices are provided in English, French,
German, Italian, and Spanish, as follows:
Safety notice 1
Before the computer is powered-on after FRU
replacement, make sure all screws, springs, and
other small parts are in place and are not left loose
inside the computer. Verify this by shaking the
computer and listening for rattling sounds. Metallic
parts or metal flakes can cause electrical shorts.
Avant de remettre l’ordinateur sous tension après
remplacement d’une unité en clientèle, vérifiez que
tous les ressorts, vis et autres pièces sont bien en
place et bien fixées. Pour ce faire, secouez l’unité et
assurez-vous qu’aucun bruit suspect ne se produit.
Des pièces métalliques ou des copeaux de métal
pourraient causer un court-circuit.
Bevor nach einem FRU-Austausch der Computer
wieder angeschlossen wird, muß sichergestellt
werden, daß keine Schrauben, Federn oder andere
Kleinteile fehlen oder im Gehäuse vergessen
wurden. Der Computer muß geschüttelt und auf
Klappergeräusche geprüft werden. Metallteile
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 ci
ÚÚ 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.
Introduction
3
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Safety notices
Safety notice 2
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 nur durch
die Verkaufsstelle oder den IBM Kundendienst
ausgetauscht werden. Sie darf nicht zerlegt,
wiederaufgeladen, kurzgeschlossen, oder Feuer
oder Wasser ausgesetzt werden. Die Batterie kann
schwere Verbrennungen oder Verätzungen
verursachen. 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.
(continued)
4
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Safety notices
Continuation of Safety notice 2
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.
Introduction
5
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Safety notices
Safety notice 3
The battery pack contains small amounts of nickel.
Do not disassemble it, throw it into fire or water, or
short-circuit it. Dispose of the battery pack as
required by local ordinances or regulations. Use
only the battery in the appropriate parts listing when
replacing the battery pack. Use of an incorrect
battery can result in ignition or explosion of the
battery.
La batterie contient du nickel. Ne la démontez pas,
ne l’exposez ni au feu ni à l’eau. Ne la mettez pas
en court- circuit. Pour la mettre au rebut,
conformez-vous à la réglementation en vigueur.
Lorsque vous remplacez la batterie, veillez à
n’utiliser que les modèles cités dans la liste de
pièces détachées adéquate. En effet, une batterie
inappropriée risque de prendre feu ou d’exploser.
Akkus enthalten geringe Mengen von Nickel. Sie
dürfen nicht zerlegt, wiederaufgeladen,
kurzgeschlossen, oder Feuer oder Wasser
ausgesetzt werden. Bei der Entsorgung die örtlichen
Bestimmungen für Sondermüll beachten. Beim
Ersetzen der Batterie nur Batterien des Typs
verwenden, der in der Ersatzteilliste aufgeführt ist.
Der Einsatz falscher Batterien kann zu Entzündung
oder Explosion führen.
La batteria contiene piccole quantità di nichel. Non
smontarla, gettarla nel fuoco o nell’acqua né
cortocircuitarla. Smaltirla secondo la normativa in
vigore (DPR 915/82, successive disposizioni e
disposizioni locali). Quando si sostituisce la batteria,
utilizzare soltanto i tipi inseriti nell’appropriato
Catalogo parti. L’impiego di una batteria non adatta
potrebbe determinare l’incendio o l’esplosione della
batteria stessa.
Las baterías contienen pequeñas cantidades de
níquel. No las desmonte, ni recargue, ni las eche al
fuego o al agua ni las cortocircuite. Deséchelas tal
como dispone la normativa local. Utilice sólo
baterías que se encuentren en la lista de piezas al
sustituir la batería. La utilización de una batería no
apropiada puede provocar la ignición o explosión de
la misma.
6
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Safety notices
Safety notice 4
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.
(continued)
Introduction
7
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Safety notices
Continuation of Safety notice 4
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.
8
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Safety notices
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 for at least 15
minutes. Seek medical care if any symptoms from
the fluid are present after washing.
Si le panneau d’affichage à cristaux liquides se
brise et que vous recevez dans les yeux ou sur les
mains une partie du fluide, rincez-les abondamment
pendant au moins quinze minutes. Consultez un
médecin si des symptômes persistent après le
lavage.
Die Leuchtstoffröhre im LCD-Bildschirm enthält
Quecksilber. Bei der Entsorgung die örtlichen
Bestimmungen für Sondermüll beachten. Der
LCD-Bildschirm besteht aus Glas und kann
zerbrechen, wenn er unsachgemäß behandelt wird
oder der Computer auf den Boden fällt. Wenn der
Bildschirm beschädigt ist und die darin befindliche
Flüssigkeit in Kontakt mit Haut und Augen gerät,
sollten die betroffenen Stellen mindestens 15
Minuten mit Wasser abgespült und bei
Beschwerden anschließend ein Arzt aufgesucht
werden.
Nel caso che caso l’LCD si dovesse rompere ed il
liquido in esso contenuto entrasse in contatto con gli
occhi o le mani, lavare immediatamente le parti
interessate con acqua corrente per almeno 15
minuti; poi consultare un medico se i sintomi
dovessero permanere.
Si la LCD se rompe y el fluido de su interior entra
en contacto con sus ojos o sus manos, lave
inmediatamente las áreas afectadas con agua
durante 15 minutos como mínimo. Obtenga atención
medica si se presenta algún síntoma del fluido
despues de lavarse.
Introduction
9
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Safety notices
Safety notice 6
To avoid shock, do not remove the plastic cover that
protects the lower part of the inverter card.
Afin d’éviter tout risque de choc électrique, ne
retirez pas le cache en plastique protégeant la
partie inférieure de la carte d’alimentation.
Aus Sicherheitsgründen die Kunststoffabdeckung,
die den unteren Teil der Spannungswandlerplatine
umgibt, nicht entfernen.
Per evitare scosse elettriche, non rimuovere la
copertura in plastica che avvolge la parte inferiore
della scheda invertitore.
Para evitar descargas, no quite la cubierta de
plástico que rodea la parte baja de la tarjeta
invertida.
Safety notice 7
Though the main batteries have low voltage, a
shorted or grounded battery can produce enough
current to burn personnel or combustible materials.
Bien que le voltage des batteries principales soit
peu élevé, le court-circuit ou la mise à la masse
d’une batterie peut produire suffisamment de
courant pour brûler des matériaux combustibles ou
causer des brûlures corporelles graves.
Obwohl Hauptbatterien eine niedrige Spannung
haben, können sie doch bei Kurzschluß oder
Erdung genug Strom abgeben, um brennbare
Materialien zu entzünden oder Verletzungen bei
Personen hervorzurufen.
Sebbene le batterie di alimentazione siano a basso
voltaggio, una batteria in corto circuito o a massa
può fornire corrente sufficiente da bruciare materiali
combustibili o provocare ustioni ai tecnici di
manutenzione.
Aunque las baterías principales tienen un voltaje
bajo, una batería cortocircuitada o con contacto a
tierra puede producir la corriente suficiente como
para quemar material combustible o provocar
quemaduras en el personal.
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Safety notices
Safety notice 8
Before removing any FRU, power 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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Safety information
Safety information
The following section contains the safety information that
you need to be familiar with before servicing an IBM
mobile computer.
General safety
Follow these rules to ensure general safety:
v
Observe good housekeeping in the area of the
machines during and after maintenance.
When lifting any heavy object:
1. Ensure you can stand safely without slipping.
2. Distribute the weight of the object equally between
your feet.
v
3. Use a slow lifting force. Never move suddenly or
twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg
muscles; this action removes the strain from the
muscles in your back. Do not attempt to lift any
objects that weigh more than 16 kg (35 lb) or objects
that you think are too heavy for you.
v
v
Do not perform any action that causes hazards to the
customer, or that makes the equipment unsafe.
Before you start the machine, ensure that other service
representatives and the customer’s personnel are not in
a hazardous position.
v
Place removed covers and other parts in a safe place,
away from all personnel, while you are servicing the
machine.
v
v
Keep your toolcase away from walk areas so that other
people will not trip over it.
Do not wear loose clothing that can be trapped in the
moving parts of a machine. Make sure that your sleeves
are fastened or rolled up above your elbows. If your hair
is long, fasten it.
v
v
Insert the ends of your necktie or scarf inside clothing or
fasten it with a nonconductive clip, approximately 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 might be
hazardous to your eyes.
v
v
v
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.
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Safety information
Electrical safety
Observe the following rules when working on electrical
equipment.
Important
Use only approved tools and test equipment. Some
hand tools have handles covered with a soft
material that does not insulate you when working
with live electrical currents.
Many customers have, near their equipment, rubber
floor mats that contain small conductive fibers to
decrease electrostatic discharges. Do not use this
type of mat to protect yourself from electrical shock.
v
Find the room emergency power-off (EPO) switch,
disconnecting switch, or electrical outlet. If an electrical
accident occurs, you can then operate the switch or
unplug the power cord quickly.
v
v
Do not work alone under hazardous conditions or near
equipment that has hazardous voltages.
Disconnect all power before:
–
–
–
Performing a mechanical inspection
Working near power supplies
Removing or installing main units
v
v
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; these instructions are in the
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Safety information
safety sections of maintenance information. Use
extreme care when measuring high voltages.
Regularly inspect and maintain your electrical hand tools
for safe operational condition.
v
v
v
Do not use worn or broken tools and testers.
Never assume that power has been disconnected from
a circuit. First, check 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.
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.
v
v
v
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.)
v
If an electrical accident occurs:
–
–
–
Use caution; do not become a victim yourself.
Switch off power.
Send another person to get medical aid.
Safety inspection guide
The purpose of this inspection guide is to assist you in
identifying potentially unsafe conditions. As each machine
was designed and built, required safety items were
installed to protect users and service personnel from injury.
This guide addresses only those items. You should use
good judgment to identify potential safety hazards due to
attachment of non-IBM features or options not covered by
this inspection guide.
If any unsafe conditions are present, you must determine
how serious the apparent hazard could be and whether
you can continue without first correcting the problem.
Consider these conditions and the safety hazards they
present:
v
Electrical hazards, especially primary power (primary
voltage on the frame can cause serious or fatal
electrical shock)
v
v
Explosive hazards, such as a damaged CRT face or a
bulging capacitor
Mechanical hazards, such as loose or missing hardware
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Safety information
To determine whether there are any potentially unsafe
conditions, use the following checklist at the beginning of
every service task. Begin the checks with the power off,
and the power cord disconnected.
Checklist:
1. Check exterior covers for damage (loose, broken, or
sharp edges).
2. Power-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 frame ground.
b. The power cord should be the type specified in the
parts list.
c. Insulation must not be frayed or worn.
4. Remove the cover.
5. Check for any obvious non-IBM alterations. Use good
judgment as to the safety of any non-IBM alterations.
6. 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.
7. Check for worn, frayed, or pinched cables.
8. Check that the power-supply cover fasteners (screws
or rivets) have not been removed or tampered with.
Handling electrostatic
discharge-sensitive devices
Any computer part containing transistors or integrated
circuits (ICs) should be considered sensitive to electrostatic
discharge (ESD). ESD damage can occur when there is a
difference in charge between objects. Protect against ESD
damage by equalizing the charge so that the machine, the
part, the work mat, and the person handling the part are all
at the same charge.
Notes
1. Use product-specific ESD procedures when they
exceed the requirements noted here.
2. Make sure that the ESD protective devices you
use have been certified (ISO 9000) as fully
effective.
When handling ESD-sensitive parts:
v
Keep the parts in protective packages until they are
inserted into the product.
v
v
Avoid contact with other people.
Wear a grounded wrist strap against your skin to
eliminate static on your body.
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Safety information
Prevent the part from touching your clothing. Most
clothing is insulative and retains a charge even when
you are wearing a wrist strap.
Use the black side of a grounded work mat to provide a
static-free work surface. The mat is especially useful
when handling ESD-sensitive devices.
Select a grounding system, such as those listed below,
to provide protection that meets the specific service
requirement.
v
v
v
Note
The use of a grounding system is desirable but
not required to protect against ESD damage.
–
–
Attach the ESD ground clip to any frame ground,
ground braid, or green-wire ground.
Use an ESD common ground or reference point
when working on a double-insulated or
battery-operated system. 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.
Laser compliance statement
Some IBM Personal Computer models are equipped from
the factory with a CD-ROM drive or DVD drive. CD-ROM
drives or DVD drives are also sold separately as options.
The CD-ROM drive or DVD drive is a laser product. The
CD-ROM drive or DVD drive is certified in the U.S. to
conform to the requirements of the Department of Health
and Human Services 21 Code of Federal Regulations
(DHHS 21 CFR) Subchapter J for Class 1 laser products.
Elsewhere, the drive is certified to conform to the
requirements of the International Electrotechnical
Commission (IEC) 825 and CENELEC EN 60 825 for
Class 1 laser products.
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Laser compliance statement
When a CD-ROM drive or DVD drive is installed, note the
following:
Use of controls or adjustments or performance
of procedures other than those specified
herein might result in hazardous radiation
exposure.
O uso de controles, ajustes ou desempenho de
procedimentos diferentes daqueles aqui
especificados pode resultar em perigosa
exposição à radiação.
Pour éviter tout risque d’exposition au rayon
laser, respectez les consignes de réglage et
d’utilisation des commandes, ainsi que les
procédures décrites.
Werden Steuer- und Einstellelemente anders
als hier festgesetzt verwendet, kann
gefährliche Laserstrahlung auftreten.
L’utilizzo di controlli, regolazioni o l’esecuzione
di procedure diverse da quelle specificate
possono provocare l’esposizione a.
El uso de controles o ajustes o la ejecución de
procedimientos distintos de los aquí
especificados puede provocar la exposición a
radiaciones peligrosas.
Opening the CD-ROM drive or DVD drive could result in
exposure to hazardous laser radiation. There are no
serviceable parts inside the CD-ROM drive or DVD drive.
Do not open.
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Laser compliance statement
Some CD-ROM drives or DVD drives contain an
embedded Class 3A or Class 3B laser diode. Note the
following:
Emits visible and invisible laser radiation when
open. Do not stare into the beam, do not view
directly with optical instruments, and avoid
direct exposure to the beam.
Radiação por raio laser ao abrir. Não olhe fixo
no feixe de luz, não olhe diretamente por meio
de instrumentos óticos e evite exposição direta
com o feixe de luz.
Rayonnement laser si carter ouvert. Évitez de
fixer le faisceau, de le regarder directement
avec des instruments optiques, ou de vous
exposer au rayon.
Laserstrahlung bei geöffnetem Gerät. Nicht
direkt oder über optische Instrumente in den
Laserstrahl sehen und den Strahlungsbereich
meiden.
Kinyitáskor lézersugár ! Ne nézzen bele se
szabad szemmel, se optikai eszközökkel.
Kerülje a sugárnyalábbal való érintkezést !
Aprendo l’unità vengono emesse radiazioni
laser. Non fissare il fascio, non guardarlo
direttamente con strumenti ottici e evitare
l’esposizione diretta al fascio.
Radiación láser al abrir. No mire fijamente ni
examine con instrumental óptico el haz de luz.
Evite la exposición directa al haz.
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General descriptions
This chapter includes descriptions for any ThinkPad model
that has the PC-Doctor DOS diagnostics program. Some
descriptions might not apply to your particular computer.
Read this first
Before you go to the checkout guide, be sure to read this
section.
Important notes
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Only certified trained personnel should
service the computer.
Read the entire FRU removal and replacement
page before replacing any FRU.
Use new nylon-coated screws when you
replace FRUs.
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.
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Replace FRUs only for the correct model.
When you replace a FRU, make sure the model
of the machine and the FRU part number are
correct by referring to the FRU parts list.
A FRU should not be replaced 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 a FRU only
when a problem recurs. If you suspect that a
FRU is defective, clear the error log and run the
test again. If the error does not recur, do not
replace the FRU.
v
Be careful not to replace a nondefective FRU.
What to do first:
When you do return a 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. Failure symptoms, error codes appearing on the
display, and beep symptoms
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__ 6. Procedure index and page number in which the
failing FRU was detected
__ 7. Failing FRU name and part number
__ 8. Machine type, model number, and serial number
__ 9. Customer’s name and address
Note for warranty: During the warranty period, the
customer may be responsible for
repair costs if the computer damage
was caused by misuse, accident,
modification, unsuitable physical or
operating environment, or improper
maintenance by the customer. The
following list provides some common
items that are not covered under
warranty and some symptoms that
might indicate that the system was
subjected to stress beyond normal
use.
Before checking problems with the computer, determine
whether the damage is covered under the warranty by
referring to the following:
The following are not covered under warranty:
v
LCD panel cracked from the application of excessive
force or from being dropped
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Scratched (cosmetic) parts
Distortion, deformation or discoloration of the cosmetic
parts
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Cracked or broken plastic parts, broken latches, broken
pins, or broken connectors caused 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
Damage caused by foreign material in the diskette drive
Diskette drive damage caused by pressure on the
diskette drive cover or by the insertion of a diskette with
multiple labels
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Damaged or bent diskette eject button
Fuses blown by attachment of a nonsupported device
Forgotten computer password (making the computer
unusable)
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Sticky keys caused by spilling a liquid onto the keyboard
The following symptoms might indicate damage
caused by nonwarranted activities:
v
Missing parts might be a symptom of unauthorized
service or modification.
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If the spindle of a hard disk drive becomes noisy, it may
have been subjected to excessive force, or dropped.
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Related service information
Related service information
This section provides information about the following:
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Service Web site
When the latest maintenance diskette and the system
program service diskette are available, a notice will be
posted on http://www.pc.ibm.com/partner/infotips/
Using Recovery CD
To create Service Partition and install the preloaded
system from Recovery CD, do the following;
To create Service Partition [SP]:
1. Erase all partitions on the hard-disk drive using FDISK
or similar application.
2. Boot with Recovery CD (and boot diskette if required).
3. A menu will appear stating “Your computer originally
included a Product Recovery program ... Reinstall
the Product Recovery Program? (Y/N) [ ]”.
Note: If the hard-disk drive contains any partitions, you
will not receive this menu — go to step 1.
4. Enter “Y” and Service Partition will be created and
loaded with D2D files.
Note: If you do not want to create Service Partition,
press “N”, and then go to step 8.
5. Press “ENTER” at next window to continue.
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Service Partition will be created. System will
automatically reboot during this precess.
Recovery process will copy some files to the Service
Partition, PKUNZIP others
Follow prompts — you may be prompted to change
CDs.
System will reboot when complete, continue to step
6 to install preloaded system.
Install preloaded system from CD:
6. Boot with Recovery CD (and boot diskette if required)
7. If the hard-disk drive is blank, a menu will appear
stating “Your computer originally included a
Product Recovery program ... Reinstall the
Product Recovery Program? (Y/N) [ ]”.
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To install Service Partition, go to step 4.
To preload hard-disk drive without installing Service
Partition, press “N”.
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8. If a menu appears asking which operating system to
install, highlight proper operating system and press
“ENTER”.
9. A menu will appear stating “Full Recovery:”. Press
“ENTER” to select.
10. Enter “Y” at the three windows which follow.
11. Follow prompts to complete Recovery.
Passwords
As many as three passwords may be needed for any
ThinkPad computer: the power-on password (POP), the
hard-disk password (HDP), and the supervisor password
(SVP).
Exception: If only SVP is installed, the password prompt
doesn’t appear when the operating system is
booted.
When any of these passwords is used, a password prompt
appears on the screen whenever the computer is turned
on. The computer does not start until the password is
entered.
Power-on password:
A power-on password (POP) protects the system from
being powered on by an unauthorized person. Without
knowing the password, nobody can start the system.
Hard-disk password:
There are two hard-disk passwords (HDPs):
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User HDP—for the user
Master HDP—for the system administrator, who can use
it to get access to the hard disk even if the user has
changed the user HDP
Note: There are two modes for the HDP: User only and
Master + User. You can enter two HDPs when you
select Master + User.
Attention
If the master HDP has been forgotten, there is no
way to delete it. But you can still get access to the
hard disk if you remember the user HDP. If both
user HDP and master HDP have been forgotten, the
password cannot be removed and the hard disk will
not be accessible.
Supervisor password:
A supervisor password (SVP) protects the system
information stored in the IBM BIOS Setup Utility so that
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without knowing the password, nobody can change the
configuration of the computer.
Attention
If the SVP has been forgotten, there is no way to
reset it.
How to remove the power-on password
To remove a POP that you have forgotten, do the
following:
(A) If SVP is not installed:
1. Turn off the computer.
2. Remove the battery pack.
3. Remove the backup battery.
For how to remove the backup battery, see “1040
4. Turn on the computer and wait until the POST ends.
After the POST ends, the password prompt does not
appear. The POP has been removed.
5. Reinstall the backup battery and the battery pack.
(B) If SVP is installed:
1. Turn on the computer by pressing and holding F1.
2. Enter the SVP. The IBM BIOS Setup Utility menu
appears.
3. Select Password, using the cursor keys to move down
the menu.
4. Select Power-On Password.
5. Enter the SVP, at the Enter Current Password field.
6. When the Enter New Password field opens, leave it
blank and press Enter twice.
7. Press Enter in the Changes have been saved window.
8. Press F10; then select Yes in the Setup confirmation
window.
How to remove the hard-disk password
Attention
If User only mode is selected and the user HDP is
forgotten, there is no way to reset it.
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To remove the user HDP that you have forgotten, do the
following:
1. Power on the computer by pressing and holding F1.
2. Enter the SVP. The IBM BIOS Setup Utility menu
appears.
3. Select Password, using the cursor keys to move down
the menu.
4. Select Hard-disk x password, where x is the letter of
the hard-disk drive. A pop-up window opens.
5. Select either User HDP or Master HDP.
6. Enter the master HDP; then leave the New Password
field blank and press Enter twice.
7. Press F10.
8. Select Yes in the Setup Configuration window.
The both user HDP and master HDP have been
removed.
Power management
To reduce power consumption, the computer has three
power management modes: screen blank (standby in
Windows 95 and Windows NT) , standby (suspend in
Windows 95 and Windows NT), and hibernation.
Note for standby mode and hibernation mode
Do not install or remove the UltraBay during standby
mode or hibernation mode. The UltraBay of
ThinkPad A21e supports only cold-swap. If you try
to do warm-swap, the UltraBay LED starts to blink
with beep sound.
Screen blank mode:
In screen blank mode, the following occurs:
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The LCD backlight turns off.
The hard-disk drive motor stops.
The speaker is muted.
To enter screen blank mode, press Fn + F3. To end screen
blank mode and resume normal operation, press any key.
Standby mode:
When the computer enters standby mode, the following
events occur in addition to what occurs in screen blank
mode:
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The LCD is powered off.
The hard-disk drive is powered off.
The CPU stops.
To enter standby mode, do any of the following:
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Press Fn + F4.
Close the LCD cover. (To prevent the computer from
entering standby mode when the LCD is closed, click
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Will not suspend even if LCD is closed in the Power
Management Properties window. Then only the LCD
turns off.)
In certain circumstances, the computer goes into standby
mode automatically:
v
If a “suspend time” has been set on the timer, and the
user does not do any operation with the keyboard, the
TrackPoint, the hard disk, the parallel connector, or the
diskette drive within the time set.
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If the battery indicator blinks orange, 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.)
Note: Even if you don’t set the low-battery alarm, the
charge indicator lets you know that the battery is
low, and then the computer enters the power-saving
mode automatically. This default low-battery
behavior is independent of the operating system; so
if you have set the low-battery alarm, the computer
may not do what you specified. It chooses either
your setting or the default setting, whichever is
appropriate.
Any one of the following events causes the computer to
resume operation from standby mode:
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The Fn key is pressed.
The LCD cover is opened.
The ring indicator (RI) is signaled by a serial device or a
PC Card device.
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The power switch is turned on.
The resume timer is set. In Windows which has the
Scheduled Tasks, the Scheduled Tasks setting has
priority over the setting in IBM BIOS Setup Utility.
Note: The computer does not accept any input
immediately after it enters suspend mode. Wait a
few seconds before taking any action to reenter
operation mode.
Hibernation mode:
Note for Windows NT
If you are using Windows NT in the default format,
NTFS, you cannot create a hibernation file. If you
want to use hibernation mode, you will need to
reinstall Windows NT with FAT format.
In hibernation mode, the following occurs:
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The system status, RAM, VRAM, and setup data are
stored on the hard disk.
The system is powered off.
Notes:
The computer cannot enter hibernation mode when
it is powered with ac power and a communication
PC Card is used.
Any one of the following events causes the computer to
enter hibernation mode when the hibernation file is
created:
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The Fn + F12 keys are pressed.
The power switch is turned off and the mode is set to
Power switch mode [Hibernation].
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The timer conditions are satisfied in suspend mode (for
operating systems other than Windows 98).
A critically low battery condition occurs.
When the power is turned on, the computer leaves
hibernation mode and resumes operation. The hibernation
file in the boot record on the hard-disk drive is read, and
system status is restored from the hard-disk drive.
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Checkout guide
Checkout guide
Use the following procedures as a guide in identifying and
correcting problems with the ThinkPad computer.
Note: The diagnostic tests are intended to test only IBM
products. The use of non-IBM products, prototype
cards, or modified options can lead to false
indications of errors and invalid system responses.
1. Identify the failing symptoms in as much detail as
possible.
2. Verify the symptoms. Try to re-create the failure by
running the diagnostic test or by repeating the
operation.
Testing the computer
The ThinkPad computer has a test program called
PC-Doctor DOS (hereafter called PC-Doctor). You can
detect errors by running the diagnostics test included in
PC-Doctor. This section is an overview of the procedure.
For details that depend on model-unique functions, refer to
For some possible configurations of the computer,
PC-Doctor might not run correctly. To avoid this problem,
you need to initialize the computer setup by use of the IBM
BIOS Setup Utility before you run PC-Doctor. On the IBM
BIOS Setup Utility screen, press F9, Enter, F10, and then
Enter.
Note: When you initialize the computer configuration,
some devices are disabled, such as the serial port.
If you test one of these devices, you will need to
enable it by using PS2.EXE.
PC-Doctor cannot be used to test a device that is in the
docking station, even if the computer supports the docking
station. To test a USB device, connect it to the USB
connector of the computer. To test the Ultrabay 2000
device, install it in the Ultrabay 2000 slot of the computer.
To run the test, do as follows:
Note: In the following procedure, you can select an item
not only with the arrow keys, but also with the
TrackPoint. Instead of pressing Enter, click the left
button.
1. Insert the PC-Doctor disk into the diskette drive; then
power on the computer.
If the computer cannot be powered on, go to “Power
sources.
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On the first screen, select the model and press Enter.
Follow the instructions on the screen.
2. The main panel of PC-Doctor appears.
3. Select Diagnostics with the arrow keys, and press
Enter.
A pull-down menu appears. (Its exact form depends on
the model.)
The options on the test menu are as follows:
Diagnostics
Interactive Tests
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Run Normal Test
Run Quick Test
CPU/Coprocessor
Systemboard
Video Adapter
Serial Ports
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Keyboard
Video
Internal Speaker
Mouse
Joystick Test
Diskette
System Load
CD-ROM/DVD Test
Stereo Speaker
Parallel Ports
Fixed Disks
Diskette Drives
Other Devices
Communication
Memory Test – Full
Memory Test – Quick
Notes:
v
In the Keyboard test in Interactive Tests, the Fn key
is scanned only once. Each key should be held down
for at least 2 seconds; otherwise, it cannot be sensed.
Video Adapter test supports only the LCD display on
ThinkPad. Before running PC-Doctor DOS, detach the
external Monitor.
v
4. Run the applicable function test.
5. Follow the instructions on the screen. If there is a
problem, PC-Doctor shows messages describing it.
6. To exit the test, select Quit — Exit Diag.
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To cancel the test, press Esc.
Note: After executing PC-Doctor, check the system
time/date and reset them if needed.
Detecting system information with
PC-Doctor
PC-Doctor can detect the following system information:
Hardware Info
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System Configuration
Memory Contents
Physical Disk Drives
Logical Disk Drives
VGA Information
IDE Drive Info
PCI Information
PNPISA Info
SMBIOS Info
VESA LCD Info
Utility
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Run External Tests
Surface Scan Hard Disk
Benchmark System
DOS Shell
Tech Support Form
Battery Rundown
View Test Log
Print Log
Save Log
Full Erase Hard Drive
Quick Erase Hard Drive
Power system checkout
To verify a symptom, do the following:
1. Power off the computer.
2. Remove the battery pack.
3. Connect the ac adapter.
4. Check that power is supplied when you power on the
computer.
5. Power off the computer.
6. Disconnect the ac adapter and install the charged
battery pack.
7. Check that the battery pack supplies power when you
power on the computer.
If you suspect a power problem, see the appropriate one
of the following power supply checkouts:
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v
Checking the ac adapter
You are here because the computer fails only when the ac
adapter is used:
v
If the power problem occurs only when the port
replicator is used, replace the port replicator.
If the power-on indicator does not turn on, check the
power cord of the ac adapter for correct continuity and
installation.
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If the computer does not charge during operation, go to
″Checking operational charging.″
To check the ac adapter, do the following:
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:
Pin Voltage (V dc)
1
2
+15.5 to +17.0
Ground
3. If the voltage is not correct, replace the ac adapter.
4. If the voltage is acceptable, do the following:
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Replace the system board.
5.
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 turn on, remove the battery pack and let it
return to room temperature. Reinstall the battery pack. If
the charge indicator or icon still does not turn on, replace
the battery pack.
If the charge indicator still does not turn on, replace the
system board. Then reinstall the battery pack. If it is still
not charged, go to the next section.
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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 the status of 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), 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 charge. 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, do the following:
1. Power off the computer.
2. Remove the battery pack and measure the voltage
between battery terminals 1 (+) and 5 (−). See the
following figure:
Terminal Voltage (V dc)
1
5
+ 0 to + 12.6
Ground (−)
5
3. for Lithium ion battery;
v
If the voltage is less than +11.0 V dc, the battery
pack has been discharged.
Note: Recharging will take at least 3 hours, even if
the indicator does not turn on.
If the voltage is still less than +11.0 V dc after
recharging, replace the battery.
for Nickel metal hydride battery;
v
If the voltage is less than +8.0 V dc, the battery
pack has been discharged.
Note: Recharging will take at least 3 hours, even if
the indicator does not turn on.
If the voltage is still less than +8.0 V dc after
recharging, replace the battery.
4. for Lithium ion battery;
v
If the voltage is more than +11.0 V dc, measure the
resistance between battery terminals 4 and 5. The
resistance must be 4 to 30 K ohm.
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for Nickel metal hydride battery;
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If the voltage is more than +8.0 V dc, measure the
resistance between battery terminals 4 and 5. The
resistance must be 4 to 30 K ohm.
If the resistance is not correct, replace the battery
pack. If the resistance is correct, replace the system
board.
Checking the backup battery
Do the following:
1. Power off the computer, and unplug the ac adapter
from it.
2. Turn the computer upside down.
5. Measure the voltage of the backup battery. See the
following figure.
Wire
Voltage (V dc)
Red
+2.5 to +3.2
Black Ground
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If the voltage is correct, replace the system board.
If the voltage is not correct, replace the backup battery.
If the backup battery discharges quickly after
replacement, replace the system board.
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Product overview
Product overview
This section presents the following product-unique
information:
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Specifications
The following table lists the specifications of the ThinkPad
A21e series:
Feature
Description
Processor
Intel® Celeron® processor 600 MHz,
L2 128–KB cache
Bus architecture
Memory (standard)
Memory (optional)
PCI Bus
64 MB (SO DIMM x 1)
64 MB or 128 MB DIMM card
(maximum of 256 MB)
CMOS RAM
Display
114 bytes
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12.1-inch, 16M colors, SVGA
(800×600 resolution) TFT color
LCD
14.1-inch, 16M colors, XGA
(1024×768 resolution) TFT color
LCD
15.0-inch, 16M colors, XGA
(1024×768 resolution) TFT color
LCD
Diskette drive
Hard-disk drive
I/O port
1.44 MB (3-mode), 3.5-inch
10.0 GB, 2.5-inch, IDE interface
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External monitor
Line-in
Headphone
Microphone
Mouse or keyboard
Parallel or diskette drive
Port replicator connector
Serial
Universal serial bus (USB)
connector
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RJ11
RJ45
Internal modem
Audio
56.6 Kbps
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Internal speaker
Software control volume
PC Card
One Type-III or Type-II or Type-I
72-watt type
AC adapter
Bay device
10-24 x CR-ROM drive
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Product overview
Status indicators
The system status indicators show the status of the
computer, as follows:
Indicator
Meaning
Green:
ꢀ1ꢁ Battery
The battery is fully charged.
Blinking green:
The battery has enough power
to operate, but is being
charged.
Orange: The battery power is low. The
battery is to being charged.
Blinking orange:
The battery needs to be
charged. when the indicator
starts blinking orange, the
computer beeps three times.
ꢀ2ꢁ Standby status
Green:
The computer is in standby
mode.
Blinking green:
The computer is entering
standby mode or hibernation
mode, or is resuming normal
operation. This indicator does
not blink in Windows 98,
Windows 2000 and Windows
Me.
(continued)
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Product overview
Indicator
Meaning
Green:
ꢀ3ꢁ Drive in use
Data is being read from or
written to the hard-disk drive,
the diskette drive, or the drive
in the Ultrabay 2000. When
this indicator is on, do not put
the computer into standby
mode or turn off the computer.
Note: Do not move the system while the
Green drive in use light is on. Sudden
physical shock could cause drive errors.
ꢀ4ꢁ Num lock
Green:
The numeric keypad on the
keyboard is enabled. To enable
or disable the keypad, press
and hold the Fn key while
pressing the NumLk key.
ꢀ5ꢁ Caps lock
ꢀ6ꢁ Scroll lock
Green:
Green:
Caps Lock mode is enabled.
To enable or disable Caps
Lock mode, press Fn + Caps
Lock key.
Scroll Lock mode is enabled.
Arrow keys can be used as
screen-scroll function keys, but
not to move the cursor. To
enable or disable Scroll Lock
mode, press Fn + ScrLk key.
Not all application programs
support this function.
ꢀ7ꢁ Power on
Green:
This indicator stays lighted
whenever the computer is on.
If the power-on indicator is on
and the standby indicator is off,
the system is ready to use. If
both the power-on indicator
and the standby indicator are
on, you can use the computer
after it returns from the
standby mode and the standby
indicator goes off.
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Product overview
FRU Tests
The following table shows the test for each FRU.
FRU
Applicable test
System board
1. Diagnostics --> CPU/Coprocessor
2. Diagnostics --> Systemboard
Power
Diagnostics --> Other Devices --> IBM AC
Adapter, IBM Battery 1 (IBM Battery 2)
LCD unit
Modem
1. Diagnostics --> Video Adapter
2. Interactive Tests --> Video
1. Make sure the modem is set up correctly.
2. Replace the modem jack and the modem
card in turn, and run the following test in
Diagnostics --> Communication:
a. Lucent Modem (M2) Loopback
b. Lucent Modem (M2) Dialtone/DTM
c. Intel Modem Register
d. Intel Modem Loopback/DTMF
e. Intel SP Modem Register
f. Intel SP Modem Loopback/DTMF
g. 3Com MiniPCI Modem Test
h. 3Com MiniPCI Dialtone Test
Audio
1. Interactive Tests --> Internal Speaker
2. Interactive Tests --> Stereo Speaker
3. Diagnostics --> Other Devices --> Crystal
SoundFusion™ Test
Speaker
1. Interactive Tests --> Internal Speaker
2. Interactive Tests --> Stereo Speaker
PC Card slots
Note: The upper slot does not function and this
test is available only for the bottom
slot.Diagnostics --> Systemboard -->
PCMCIA, PCMCIA External Loop
Keyboard
1. Diagnostics --> Systemboard -->
Keyboard
2. Interactive Tests --> Keyboard
TrackPoint or
If the TrackPoint does not work, check the
pointing device configuration in the ThinkPad Configuration
program. If the TrackPoint is disabled, select
Enable to enable it.
After you use the TrackPoint, the pointer may
drift on the screen for a short time. This drift
can occur when a slight, steady pressure is
applied to the TrackPoint pointer. This symptom
is not a hardware problem. If the pointer stops
after a short time, no service action is
necessary.
If enabling the TrackPoint does not correct the
problem, continue with the following:
v
Interactive Tests --> Mouse
Hard-disk drive Diagnostics --> Fixed Disks
(continued)
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Product overview
FRU
Applicable test
Diskette drive
1. Diagnostics --> Diskette Drives
2. Interactive Tests --> Diskette
CD-ROM or
DVD drive
1. Diagnostics --> Other Devices -->
CD-ROM/DVD
2. Interactive Tests --> CD-ROM/DVD Test
Memory
1. If two DIMMs are installed, remove one of
them and run Diagnostics --> Memory
Test - Quick.
2. If the problem does not recur, return the
DIMM to its place, remove the other one,
and run the test again.
3. If the test does not detect the error, run
Diagnostics --> Memory Test - Full.
Fan
1. Turn on the computer and check the air
turbulence at the louver near the power
switch.
2. Run Diagnostics --> Other Devices -->
IBM Fan.
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Product overview
Fn key combinations
The following table shows the function of each combination
of Fn with a function key.
The Fn key works independently from the operating
system.
Key combination
Fn + F1
Description
Reserved.
Reserved.
Fn + F2
Fn + F3
Turn off the LCD display, leaving the
screen blank. To turn the LCD display on
again, press any key or the TrackPoint
stick.
Fn + F4
Turn standby mode on. To return to
normal operation, press the Fn key.
Fn + F5
Fn + F6
Fn + F7
Reserved.
Reserved.
Switch between the LCD and an external
monitor.
Fn + F8
Turn screen expansion on or off. (There is
no symbol on the key.)
Fn + F9
Reserved.
Fn + F10
Reserved.
Fn + F11
Reserved.
Fn + F12
Turn hibernation mode on.
Turn the ThinkLight on or off.
The LCD becomes brighter.
The LCD becomes less bright.
Audio volume becomes bigger.
Audio volume becomes smaller.
Mute.
Fn + PgUp
Fn + Home
Fn + End
Fn + Insert
Fn + Delete
Fn + Backspace
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Symptom-to-FRU index
Symptom-to-FRU index
The symptom-to-FRU index in this section lists symptoms
and errors and their possible causes. The most likely
cause is listed first, in boldface type.
Note: Do the FRU replacement or other actions in the
sequence shown in the column headed “FRU or
action, in sequence.” If replacing a FRU does not
solve the problem, put the original part back in the
computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular
servicing, what FRUs are likely to need to be replaced
next.
A numeric error is displayed for each error detected in
POST or system operation. In the displays, n can be any
number.
If no numeric code is displayed, check the narrative
descriptions of symptoms. If the symptom is not described
Note
For an IBM device not supported by diagnostic
codes in the ThinkPad notebook computers, see the
manual for that device.
Numeric error codes
Symptom or error
FRU or action, in sequence
0175
System board.
Bad CRC1, stop POST task —
The EEPROM checksum is not
correct.
0187
System board.
System board.
EAIA data access error — The
access to EEPROM has failed.
0188
Invalid RFID serialization
information area or bad CRC2
— The EEPROM checksum is
not correct.
0189
System board.
Invalid RFID configuration
information area — The
EEPROM checksum is not
correct.
(continued)
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Symptom-to-FRU index
Symptom or error
FRU or action, in sequence
0190
1. Charge the battery pack.
Critical low battery error.
2. Battery pack.
0200
1. Reseat the hard-disk
drive.
2. Load Setup Defaults in IBM
BIOS Setup Utility.
3. Hard-disk drive.
4. System board.
Hard disk error — The hard
disk is not working.
021x
Run interactive tests of the
keyboard and the auxiliary
input device.
Stuck key — Keyboard error.
0220
Load Setup Defaults in IBM
BIOS Setup Utility.
Monitor type error — Monitor
type does not match the one
specified in CMOS.
0230
System board.
Shadow RAM error — The
shadow RAM failure at offset
nnnn.
0231
1. DIMM.
System RAM failure at offset
nnnn.
2. System board.
0232
1. DIMM.
Extended RAM error —
Extended RAM failure at offset
nnnn.
2. System board.
0250
Replace the backup battery
System battery error — System and run IBM BIOS Setup
battery is dead.
Utility to reset the time and
date.
0251
Replace the backup battery
and run IBM BIOS Setup
Utility to reset the time and
date.
System CMOS checksum
bad—Default configuration
used.
0252
Reset the password by
running IBM BIOS Setup
Utility.
Password checksum bad —
The password is cleared.
0260
System timer error.
1. Replace the backup
battery and run IBM BIOS
Setup Utility to reset the
time and date.
2. System board.
0270
1. Replace the backup
battery and run IBM BIOS
Setup Utility to reset the
time and date.
Real-time clock error.
2. System board.
0271
Run IBM BIOS Setup Utility to
Date and time error — Neither
the date nor the time is set in
the computer.
reset the time and date.
(continued)
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Symptom-to-FRU index
Symptom or error
FRU or action, in sequence
0280
1. Load Setup Defaults in
IBM BIOS Setup Utility.
2. DIMM.
Previous boot incomplete —
Default configuration used.
3. System board.
02B2
1. Diskette drive.
2. External FDD cable.
3. I/O card.
Incorrect drive A type.
02F4
1. Load Setup Defaults in
IBM BIOS Setup Utility.
2. Replace the backup battery.
3. System board.
EISA CMOS not writable.
02F5
1. DIMM.
DIMM test failure.
2. System board.
02F6
1. DIMM.
Software NMI failure.
2. System board.
02F7
1. DIMM.
Fail-safe timer NMI failure.
2. System board.
1801
Shut down the computer and
remove it from the docking
station
Attached docking station is not
supported.
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Symptom-to-FRU index
Error messages
Symptom or error
FRU or action, in sequence
Device address conflict.
1. Load Setup Defaults in
IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
Allocation error for device.
1. Load Setup Defaults in
IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
Failing bits: nnnn.
1. DIMM.
2. System board.
Invalid system configuration
data.
1. DIMM.
2. System board.
I/O device IRQ conflict.
1. Load Setup Defaults in
IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
Operating system not found.
1. Check that the operating
system has no failure and is
installed correctly.
2. Enter IBM BIOS Setup
Utility and see whether
the hard-disk drive and
the diskette drive are
properly identified.
3. Reseat the hard-disk drive.
4. Reinstall the operating
system.
5. Diskette drive.
6. Hard-disk drive.
7. System board.
Hibernation error.
1. Restore the system
configuration to what it
was before the computer
entered hibernation mode.
2. If memory size has been
changed, re-create the
hibernation file.
Fan error.
Fan.
Unsupported memory
configuration.
Maximum memory size is 256
MB. Shut down the computer
and remove the extra
memory.
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Symptom-to-FRU index
Beep symptoms
Symptom or error
FRU or action, in sequence
One beep and a blank,
unreadable, or flashing LCD.
1. Reseat the LCD
connector.
2. LCD assembly.
3. External CRT.
4. System board.
One long and two short beeps, 1. System board.
and a blank or unreadable
LCD.
2. LCD assembly.
3. DIMM.
Two short beeps with error
codes.
Two short beeps with blank
screen.
1. System board.
2. DIMM.
Three short beeps, pause,
three more short beeps, and
one short beep.
1. DIMM.
2. System board
Only cursor appears.
Reinstall operating system.
No beep symptoms
Symptom or error
FRU or action, in sequence
No beep, power-on indicator
on, LCD blank, and no POST.
1. Make sure that every
connector is connected
tightly and correctly.
2. DIMM.
3. System board.
No beep, power-on indicator
on, and LCD blank during
POST.
1. Reseat DIMM.
2. System board.
No beep during POST, but
system runs correctly.
Speaker.
The power-on password
prompt.
A power-on password or a
supervisor password is set.
Type the password and press
Enter.
The hard-disk password
prompt.
A hard-disk password is set.
Type the password and press
Enter.
The DOS full screen looks
smaller.
Start the ThinkPad
Configuration program and set
the Screen expansion
function.
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Symptom-to-FRU index
LCD-related symptoms
Important
The TFT LCD for the notebook computer contains
many thin-film transistors (TFTs). A small number of
dots that are missing, discolored, or always lighted
is characteristic of TFT LCD technology, but
excessive pixel problems can cause viewing
concerns. The LCD should be replaced if the
number of missing, discolored, or lighted dots in any
background is:
v
SVGA: 5 or more bright dots, 5 or more dark
dots, or a total of 9 or more bright and dark dots.
XGA: 8 or more bright dots, 8 or more dark dots,
or a total of 9 or more bright and dark dots.
v
Note: Bright dots means pixel is always on (white
or color.) Dark dots means pixel is always off
(black color.)
Symptom or error
FRU or action, in sequence
No beep, power-on indicator
on, and a blank LCD during
POST.
System board.
v
v
v
LCD backlight not working.
LCD too dark.
LCD brightness cannot be
adjusted.
1. Reseat the LCD
connectors.
2. LCD assembly.
3. System board.
v
LCD contrast cannot be
adjusted.
v
v
v
v
LCD screen unreadable.
Characters missing pixels.
Screen abnormal.
1. See important note for
2. Reseat all LCD connectors.
3. LCD assembly.
Wrong color displayed.
4. System board.
Horizontal or vertical lines
displayed on LCD.
LCD assembly.
Intermittent problems
Intermittent system hang problems can be due to a variety
of causes that have nothing to do with a hardware defect,
such as cosmic radiation, electrostatic discharge, or
software errors. FRU replacement should be considered
only when a problem recurs.
When analyzing an intermittent problem, do the following:
1. Run the diagnostic test for the system board in loop
mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
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Symptom-to-FRU index
3. If any error is detected, replace the FRU shown by the
FRU code. Rerun the test to verify that no more errors
exist.
Undetermined problems
You are here because the diagnostic tests did not identify
which adapter or device failed, wrong devices are installed,
a short circuit is suspected, or the system is inoperative.
Follow these procedures to isolate the failing FRU (do not
isolate FRUs that have no defects).
Verify that all attached devices are supported by the
computer.
Verify that the power supply being used at the time of the
1. Power off the computer.
2. Visually check each FRU for damage. Replace any
damaged FRU.
3. Remove or disconnect all of the following devices:
a. Non-IBM devices
b. Devices attached to the port replicator
c. Printer, mouse, and other external devices
d. Battery pack
e. Hard-disk drive
f. External diskette drive
g. DIMM
h. CD-ROM and diskette drive in the UltraslimBay
i. PC Cards
4. Power on the computer.
5. Determine whether the problem has changed.
6. If the problem does not recur, reconnect the removed
devices one at a time until you find the failing FRU.
7. If the problem remains, replace the following FRUs one
at a time (do not replace a nondefective FRU):
a. System board
b. LCD assembly
FRU replacement notices
This section contains notices related to removing and
replacing parts. Read this section carefully before replacing
any FRU.
Screw notices
Loose screws can cause a reliability problem. The an IBM
ThinkPad computer address this problem with special
nylon-coated screws that have the following characteristics:
v
v
They maintain tight connections.
They do not easily come loose, even with shock or
vibration.
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FRU replacement notices
v
v
They are harder to tighten.
They should be used only once.
Do the following when you service this machine:
v
Keep the screw kit (for reference the P/N, see
Always use new screws.
v
v
Use a torque screwdriver if you have one.
Tighten screws as follows:
v
Plastic to plastic
Turn an additional 90 degrees after the screw head
touches the surface of the plastic part:
v
Logic card to plastic
Turn an additional 180 degrees after the screw head
touches the surface of the logic card:
v
v
Torque driver
If you have a torque driver, refer to the “Torque” column
for each step.
Make sure you use the correct screw. 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 the screws are
tightened firmly.
Retaining serial numbers
This section includes the following descriptions:
v
v
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FRU replacement notices
Restoring the serial number of the system
unit
When the computer was manufactured, the EEPROM on
the system board was loaded with the serial numbers of
the system and all major components. These numbers
need to remain the same throughout the life of the
computer.
If you replace the system board, you must restore the
serial number of the system unit to its original value.
Before replacing the system board, save the original serial
number by doing the following:
1. Install the ThinkPad hardware maintenance diskette
version 1.61, and restart the computer.
2. From the main menu, select 1. Set System
Identification.
3. Select 2. Read S/N data from EEPROM.
The serial number for each device is displayed. Write
down the serial number of the system unit, designated as
follows:
20: System unit serial number
After you have replaced the system board, restore the
serial number by doing the following:
1. Install the ThinkPad hardware maintenance diskette
version 1.61 and restart the computer.
2. From the main menu, select 1. Set System
Identification.
3. Select 1. Add S/N data from EEPROM.
Follow the instructions on the screen.
Note: The serial number of the system unit is written on
the label attached on the bottom of the computer.
Retaining the UUID
The Universally Unique Identifier (UUID) is a 128-bit
number uniquely assigned to your computer at production
and stored in the EEPROM of your system board. The
algorithm that generates the number is designed to provide
unique IDs until the year A.D. 3400. No two computers in
the world have the same number.
When you replace the system board, you must set the
UUID on the new system board as follows:
1. Install the ThinkPad hardware maintenance diskette
version 1.61, and restart the computer.
2. From the main menu, select 4. Assign UUID.
A new UUID is created and written. If a valid UUID
already exists, it is not overwritten.
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Removing and replacing a FRU
Removing and replacing a FRU
This section presents information and drawings for use in
removing and replacing a FRU. Be sure to observe the
following general rules:
1. Do not try to service the computer unless you have
been trained and certified. An untrained person runs
the risk of damaging parts.
3. Begin by removing any FRUs that have to be removed
before the failing FRU. Any 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 for removing
the FRU, as indicated in the drawings by the numbers
in square callouts.
5. When turning a screw to replace a FRU, turn it in the
direction indicated by the arrow in the drawing.
6. When removing the FRU, move it in the direction
indicated by the arrow in the drawing.
7. To put the new FRU in place, reverse the removal
procedure and follow any notes that pertain to
replacement. For information about connecting and
8. When replacing a FRU, use the correct screw as
shown in the procedures.
CAUTION:
Before removing any FRU, power off the computer,
unplug all power cords from electrical outlets, remove
the battery pack, and then disconnect any
interconnecting cables.
CAUTION:
Do not disassemble the battery pack, throw it into fire
or water, or short-circuit it. Dispose of the battery pack
as required by local ordinances or regulations.
Attention: Before the computer is powered on after FRU
replacement, make sure all screws, springs, and other
small parts are in place and are not loose inside the
computer. Verify this by shaking the computer gently and
listening for rattling sounds. Metallic parts or metal flakes
can cause electrical short circuits.
Attention: The system board is sensitive to, and can be
damaged by, electrostatic discharge. Establish personal
grounding by touching a ground point with one hand before
touching these units.
You must use an electrostatic discharge (ESD) strap (P/N
6405959) to establish personal grounding.
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1010 Battery pack
CAUTION:
If the rechargeable battery pack is incorrectly replaced,
there is danger of an explosion. The battery pack
contains a small amount of harmful substances. To
avoid possible injury: (1) replace only with a battery of
the type recommended by IBM, or an equivalent, (2)
keep the battery pack away from fire, (3) do not
expose it to water or rain, (4) do not attempt to
disassemble it, (5) do not short-circuit it. Do not put
the battery pack in trash that is disposed of in
landfills. When disposing of the battery, comply with
local ordinances or regulations.
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1020 DIMM
v
Battery pack (1010)
Note: Loosen the screw ꢀ1ꢁ, but do not remove it.
When installing: With the notched end of the DIMM
toward the socket, insert the DIMM into
the socket, then press it firmly. Pivot the
DIMM until it snaps into place. Make
sure that the card is firmly fixed in the
slot and does not move easily.
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Removing and replacing a FRU
1030 Mini PCI adapter
v
Battery pack (1010)
Note: Loosen the screw ꢀ1ꢁ, but do not remove it.
1
2
(continued)
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Removing and replacing a FRU
Note: The illustration shows the combo card. Connector
(A) is for the LAN feature and (B) is for the modem
feature. This slot also supports a Mini PCI modem
card or Mini PCI network card. Step ꢀ5ꢁ depends
on the card type. Disconnect either (A), (B) or both.
When installing the card, do the following:
v
With the notched end of the card toward the socket,
insert the card into the socket, then press it firmly. Pivot
the card until it snaps into place. Make sure that the
card is firmly fixed in the slot and does not move easily.
Make sure that the connector (A) is placed under the
card when reinstalling the Mini PCI adapter.
v
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1040 Backup battery
CAUTION:
There is a danger of an explosion if the backup battery
is incorrectly replaced. The lithium battery (IBM P/N
02K6572 UL-recognized component [file no. MH12210])
contains lithium and can explode if it is not properly
handled or disposed of. Replace only with a battery of
the same type. To avoid possible injury or death, do
not: (1) throw or immerse the battery into water, (2)
allow it to heat to more than 100°C (212°F), or (3)
attempt to repair or disassemble it. Dispose of it as
required by local ordinances or regulations.
v
v
v
Battery pack (1010)
DIMM (1020)
Mini PCI adapter (1030)
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1050 Hard-disk drive
Attention
Do not drop or apply any shock to the hard-disk
drive. The hard-disk drive is sensitive to physical
shock. Incorrect handling can cause damage and
permanent loss of data.
Before removing the drive, have the user make a
backup copy of all the information on the drive if
possible.
Never remove the drive while the system is
operating or is in suspend mode.
v
Battery pack (1010)
Note: The hard disk is attached to the cover.
Step
Screw (quantity)
ꢀ1ꢁ
Coin screw (1) or security screw (1)
Note: Use a 2.5-mm Allen wrench to remove the security screw.
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When installing: Make sure that the HDD connector is
firmly connected.
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1060 Ultrabay 2000 device
Any of several devices can be inserted into the Ultrabay
2000. The procedure for installing and removing is the
same for every device.
Note: When you release the switch in step ꢀ1ꢁ the lever
pops out. Pull the lever a little in step ꢀ2ꢁ to release
the device from the bay.
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Removing and replacing a FRU
(continued)
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Removing and replacing a FRU
1070 Keyboard
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
1
Step
ꢀ1ꢁ
Screw (quantity)
M2.5 × 15 mm, nylon-coated (3)
Torque
39.2 Ncm
(4 kgfcm)
(continued)
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Removing and replacing a FRU
(continued)
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Removing and replacing a FRU
When installing: When installing the keyboard, do as
follows:
1. Install the new keyboard, following the directions in the
figure. Make sure that the keyboard edges, shown in
the figure as (A), (B), and (C), are under the frame.
2. Push the Y key ꢀ1ꢁ to connect the keyboard to the
connector on the underside of the key; then push the
frame of the keyboard ꢀ2ꢁ to latch the latches.
3. After the fastening of three screws of bottom side, push
the Y key again to connect the keyboard firmly to the
connector on the underside of the key.
62 ThinkPad A21e
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Removing and replacing a FRU
1080 Keyboard CRU insulator
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
ThinkPad A21e 63
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Removing and replacing a FRU
1090 Hinge cover
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Step
ꢀ1ꢁ
Screw (quantity)
Torque
M2.5 × 15 mm, nylon-coated (1)
39.2 Ncm
(4 kgfcm)
64 ThinkPad A21e
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Removing and replacing a FRU
1100 Keyboard bezel and speaker
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Step
ꢀ1ꢁ
Screw (quantity)
Torque
M2.5 × 4.8 mm, nylon-coated (7)
39.2 Ncm
(4 kgfcm)
(continued)
ThinkPad A21e 65
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Removing and replacing a FRU
Step
Screw (quantity)
M2.5 × 15 mm, nylon-coated (2)
Torque
ꢀ2ꢁ
39.2 Ncm
(4 kgfcm)
Cable routing: When replacing the cable, see the
preceding figure for its cable routing.
66 ThinkPad A21e
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Removing and replacing a FRU
1110 Speaker cable
v
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker (1100)
When installing: Make sure that you fasten the connector
firmly.
ThinkPad A21e 67
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Removing and replacing a FRU
1120 Sub card
v
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker (1100)
Step
ꢀ1ꢁ
Screw (quantity)
Torque
Special, nylon-coated (2)
—
(continued)
68 ThinkPad A21e
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Removing and replacing a FRU
Step
Screw (quantity)
M2.5 × 4.8 mm, nylon-coated (1)
Torque
ꢀ2ꢁ
39.2 Ncm
(4 kgfcm)
ThinkPad A21e 69
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Removing and replacing a FRU
1130 PC Card slot assembly
v
v
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker (1100)
Sub card (1120)
Step
ꢀ1ꢁ
Screw (quantity)
Torque
M2.0 × 9.5 mm, nylon-coated (2)
24.5 Ncm
(2.5 kgfcm)
70 ThinkPad A21e
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Removing and replacing a FRU
1140 Fan assembly
v
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker (1100)
Step
ꢀ1ꢁ
Screw (quantity)
Torque
M2.5 × 4.8 mm, nylon-coated (3)
39.2 Ncm
(4 kgfcm)
ThinkPad A21e 71
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Removing and replacing a FRU
When installing: When installing the fan assembly, apply
the thermal grease (05K5751) on the
ꢀaꢁ-part of the fan as shown in the
following figure.
72 ThinkPad A21e
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Removing and replacing a FRU
1150 Diskette drive
v
v
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker (1100)
Speaker cable (1110)
Note: Remove the diskette drive spacer ꢀ1ꢁ gently; it will
be reused when installing the new diskette drive.
Step
Screw (quantity)
Torque
ꢀ2ꢁ
M2.5 × 4.8 mm, nylon-coated (1)
39.2 Ncm
(4 kgfcm)
ꢀ3ꢁ
M2.5 × 15 mm, nylon-coated (2)
39.2 Ncm
(4 kgfcm)
When installing: Do not press the ꢀaꢁ-part of the diskette
drive to avoid the damage.
ThinkPad A21e 73
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Removing and replacing a FRU
1160 Upper shield
v
v
v
v
v
v
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker (1100)
Speaker cable (1110)
Sub card (1120)
PC Card slot assembly (1130)
Fan assembly (1140)
Diskette drive (1150)
Step
ꢀ1ꢁ
Screw (quantity)
Torque
M2.5 × 15 mm, nylon-coated (2)
39.2 Ncm
(4 kgfcm)
ꢀ2ꢁ
M2.5 × 4.8 mm, nylon-coated (2)
39.2 Ncm
(4 kgfcm)
74 ThinkPad A21e
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Removing and replacing a FRU
1170 System board
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
v
Battery pack (1010)
DIMM (1020)
Mini PCI adapter (1030)
Backup battery (1040)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker (1100)
Speaker cable (1110)
Sub card (1120)
PC Card slot assembly (1130)
Fan assembly (1140)
Diskette drive (1150)
Upper shield (1160)
Step
ꢀ1ꢁ
Screw (quantity)
Torque
M2.5 × 15 mm, nylon-coated (3)
39.2 Ncm
(4 kgfcm)
(continued)
ThinkPad A21e 75
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Removing and replacing a FRU
Step
Screw (quantity)
M2.5 × 4.8 mm, nylon-coated (2)
Torque
ꢀ3ꢁ
39.2 Ncm
(4 kgfcm)
76 ThinkPad A21e
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Removing and replacing a FRU
2010 LCD assembly
v
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker(1100)
Step
ꢀ1ꢁ
Screw (quantity)
Torque
M2.5 × 4.8 mm, nylon-coated (4)
39.2 Ncm
(4 kgfcm)
(continued)
ThinkPad A21e 77
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Removing and replacing a FRU
Step
ꢀ2ꢁ
Screw (quantity)
Torque
Special, nylon-coated (2)
—
ꢀ4ꢁ
M2.5 × 4.8 mm, nylon-coated (2)
39.2 Ncm
(4 kgfcm)
78 ThinkPad A21e
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Removing and replacing a FRU
2020 Front bezel
v
v
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker (1100)
LCD assembly (2010)
Step
ꢀ1ꢁ
Screw (quantity)
Torque
M2.5 × 4.8 mm, nylon-coated (2)
39.2 Ncm
(4 kgfcm)
ThinkPad A21e 79
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Removing and replacing a FRU
Note: Only the front bezel for the 15.0-in. XGA TFT (LG)
has a identifying mark (V), as in the following
80 ThinkPad A21e
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Removing and replacing a FRU
2030 Inverter card
v
v
v
v
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker (1100)
Keyboard bezel (1130)
LCD assembly (2010)
Front bezel (2020)
12.1-in. panel
Step
Screw (quantity)
M2.5 × 4.8 mm, nylon-coated (1)
Torque
ꢀ1ꢁ
39.2 Ncm
(4 kgfcm)
(continued)
ThinkPad A21e 81
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Removing and replacing a FRU
14.1-in. and 15.0-in. panels
Step
Screw (quantity)
Torque
ꢀ1ꢁ
M2.5 × 4.8 mm, nylon-coated (1)
39.2 Ncm
(4 kgfcm)
82 ThinkPad A21e
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Removing and replacing a FRU
2040 LCD panel
v
v
v
v
v
v
v
v
v
v
Battery pack (1010)
Hard-disk drive (1050)
Ultrabay 2000 device (1060)
Keyboard (1070)
Keyboard CRU insulator (1080)
Hinge cover (1090)
Keyboard bezel and speaker (1100)
LCD assembly (2010)
Front bezel (2020)
Inverter card (2030)
12.1-in. panel
Step MT
Screw (quantity)
Torque
ꢀ1ꢁ
2628-Cxx
M2.5 × 7.0 mm,
nylon-coated (4)
39.2 Ncm
(4 kgfcm)
(continued)
ThinkPad A21e 83
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Removing and replacing a FRU
(continued)
84 ThinkPad A21e
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Removing and replacing a FRU
14.1-in. and 15.0-in. panels
Step MT
Screw (quantity)
Torque
ꢀ1ꢁ
2628-Jxx
M2.0 × 5.7 mm,
24.5 Ncm
nylon-coated (4)
(2.5 kgfcm)
(continued)
ThinkPad A21e 85
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Removing and replacing a FRU
Note: For 14.1-in. LCD, the LCD cable is taped onto the
connector. Tear off the tape before disconnecting
the LCD cable in step ꢀ3ꢁ.
86 ThinkPad A21e
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Locations
Locations
Front view
ꢀ1ꢁ
ꢀ2ꢁ
ꢀ3ꢁ
ꢀ4ꢁ
ꢀ5ꢁ
ꢀ6ꢁ
ꢀ7ꢁ
ꢀ8ꢁ
System status indicators
Battery and standby mode status indicators
Built-in stereo speakers
PC Card eject button
PC Card slot
Bay latch
Eject button
Ultrabay 2000 device
Note: The Ultrabay 2000 accepts storage
devices, such as a DVD drive, CD-ROM
drive, CD-RW, ZIP250, 2nd HDD or 2nd
battery.
ꢀ9ꢁ
TrackPoint pointing stick
TrackPoint buttons
ThinkPad button
Volume and mute buttons
Power switch
ꢀ10ꢁ
ꢀ11ꢁ
ꢀ12ꢁ
ꢀ13ꢁ
ꢀ11ꢁ and ꢀ12ꢁ are Ez buttons for MT2632.
ThinkPad A21e 87
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Locations
Rear view
ꢀ1ꢁ
ꢀ2ꢁ
ꢀ3ꢁ
ꢀ4ꢁ
ꢀ5ꢁ
ꢀ6ꢁ
ꢀ7ꢁ
ꢀ8ꢁ
ꢀ9ꢁ
Security keyhole
Parallel connector
Modem connector
Network connector
Serial connector
External-monitor connector
Universal serial bus (USB) connector
External-input-device connector
Power jack
88 ThinkPad A21e
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Locations
Bottom view
ꢀ1ꢁ
ꢀ2ꢁ
ꢀ3ꢁ
ꢀ4ꢁ
ꢀ5ꢁ
ꢀ6ꢁ
ꢀ7ꢁ
ꢀ8ꢁ
ꢀ9ꢁ
ꢀ10ꢁ
ꢀ11ꢁ
Battery pack
Battery pack latches
Mini PCI card slot
Docking connector
DIMM slot
Stereo headphone jack
Stereo line-in jack
Diskette drive
Microphone jack
Hard-disk drive
LCD latches
ThinkPad A21e 89
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Parts list
Parts list
90 ThinkPad A21e
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Parts list
The parts marked with asterisk are CRU (customer
replacable unit).
No.
1
FRU
P/N
Hinge cover
2
for MT2628-Jxx, -Ixx
for MT2628-Cxx
04P3970
04P3972
04P3725
for MT2632 (i-series)
Speaker assembly
for MT2628-Jxx
3
4
02K5644
for MT2628-Cxx and MT2632 (i-series) 02K5007
Keyboard bezel
for MT2628-Jxx
04P3727
08K7091
04P3726
08K7090
04P3728
08K3306
04P3398
04P3482
for Korea
for MT2628-Cxx
for Korea
for MT2632 (i-series)
5
6
7
a
8
9
Sub card
PC card slot
Fan assembly
Stiffener, CPU socket
Backup battery
02K6572
08K3125
19K5888
22P6444
08K3338
08K3252
08K3348
Mini PCI combo card (Intel)*
Mini PCI combo card CR*
Mini PCI combo card (3Com)*
Mini PCI modem card (IBM CR)*
Mini PCI modem card (Ambit)*
Mini PCI Ethernet card (Intel)*
10 Blank cap RJ45*
11 Base cover
for T-China
04P3975
04P3712
04P3716
04P3720
04P3723
08K9579
27L3436
for Korea
for MT2632 (i-series)
12 Ultrabay 2000 CD-ROM drive (LG)*
Ultrabay 2000 CD-ROM drive drive (TEAC)*
(continued)
ThinkPad A21e 91
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Parts list
P/N
No.
FRU
b
13 Cover, Mini PCI adapter slot*
14 Battery pack (6 cell), SANYO*
Battery pack (6 cell), Panasonic*
Battery pack (7 cell) NiMH, Panasonic*
Battery pack (9 cell), SANYO*
08K5673
02K6618
02K6614
02K6720
02K6619
02K6615
Battery pack (9 cell), Panasonic*
15 Cover, DIMM slot*
08K5674
08K9508
08K9531
27L3427
08K9533
16 Hard-disk drive (10.0 GB), SSD*
Hard-disk drive (10.0 GB), Hitachi*
Hard-disk drive (20.0 GB), SSD*
Hard-disk drive (20.0 GB), Hitachi*
17 Cover, hard-disk drive*
for MT2628-Jxx
08K5676
for MT2628-Cxx and MT2632 (i-series) 08K5675
18 System board
08K3262
20L0264
20L0265
19 64-MB SDRAM SO DIMM*
128-MB SDRAM SO DIMM*
20 Upper shield 08K7158
21 Diskette drive (TEAC)
Diskette drive (SONY)
05K9157
08K9552
04P3225
27L0601
22 Spacer, diskette drive
23 Speaker cable
25 Pointing stick cap*
84G6536
05K2707
27L0531
02K6666
02K6670
02K6669
02K6677
02K6673
-
-
-
Telephone cable*
Video cable*
AC adapter (72W), 3-pin (ASTEC)*
AC adapter (72W), 3-pin (DELTA)*
AC adapter (72W), 2-pin (ASTEC)*
AC adapter (72W), 2-pin (SANKEN)*
AC adapter (72W), 2-pin (DELTA)*
92 ThinkPad A21e
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Parts list
LCD FRU
12.1-in. SVGA TFT
FRU
P/N
LCD cover assembly
for Korea
08K5655
08K5659
27L0485
05K9577
08K5664
08K3325
LCD cable
LCD panel (SANYO)
Hinges
Inverter card
14.1-in. XGA TFT
FRU
P/N
LCD cover assembly
for MT2628-Ixx
for MT2632 (i-series)
LCD cable
08K5656
04P3724
for MT2628-Ixx
for MT2632 (i-series)
LCD panel (DBU)
LCD panel (SAMSUNG)
Hinges
27L0486
27L0610
05K9578
05K9588
08K5665
12P3051
Inverter card
15.0-in. XGA TFT
FRU
P/N
LCD cover assembly
for Korea
08K5657
08K6443
27L0487
05K9580
04P3488
08K3326
LCD cable
LCD panel (SAMSUNG)
Hinges
Inverter card
(continued)
ThinkPad A21e 93
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Parts list
15.0-in. XGA TFT (LG)
FRU
P/N
LCD cover assembly
04P3048
04P3049
27L0578
05K9647
04P3488
08K3326
04P3050
for Korea
LCD cable
LCD panel (LG)
Hinges
Inverter card
94 ThinkPad A21e
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Parts list
Keyboard
Language
Arabic
P/N
02K5476
02K5470
02K5456
02K5459
02K5480
02K5467
02K5464
02K5469
02K5463
02K5462
02K5473
02K5479
02K5474
02K5468
02K5458
02K5460
02K5457
02K5466
02K5481
02K5472
02K5477
02K5478
02K5482
02K5465
02K5471
02K5475
02K5461
02K5455
02K5576
Belgian
Canadian French
Chinese, traditional
Czech
Danish
Dutch
European Spanish
European French
German
Greek
Hungarian
Hebrew
Italian
Japanese
Korean
Latin American Spanish
Norwegian
Polish
Portuguese
Russian
Slovakian
Slovenian
Swedish or Finnish
Swiss
Turkish
U.K. English
U.S. English
Japanese (i-series)
ThinkPad A21e 95
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Parts list
Miscellaneous parts
FRU
P/N
04P3973
Screw kit (including nylon-coated screws):
v
v
v
v
v
v
v
v
v
v
v
v
M2 x 3.6 mm, flat head (3)
M2 x 5.1 mm, flat head (5)
M2 x 5.7 mm, flat head (5)
M2 x 16 mm, bind head (3)
M2.5 x 4.8 mm, flat head (42)
M2.5 x 5.5 mm, flat head (2)
M2.5 x 15 mm, flat head (15)
M2.6 x 2.8 mm, bind head (7)
M3 x 2.8 mm, small head (5)
Coin screw (1)
Security screw (1)
Screw caps (14)
Base miscellaneous parts:
08K5647
v
v
v
v
v
v
v
v
v
v
v
v
v
v
Lens, IR
Lens, Ultrabay 2000 LES
Lock, battery
Spring, battery lock
Lid, docking FR
Lid, docking RR
Spring, lid docking
Rubber foot
Sponge
Sponge, shield lower
Sponge, small
Blank cap, battery
Screw caps
Cu tape
System miscellaneous parts:
04P3966
v
v
v
v
v
v
v
v
v
v
v
v
Door, PC card slots
Door, PC card 1 slot
Spring, PC card slots
Lens, LED hinge
Blank cap, TV connector
Eject knob, Ultrabay 2000
Lock lever, Ultrabay 2000
Spring, Ultrabay 2000
Insulator, hard-disk drive
Insulator, keyboard CRU
Mini PCI guide
Screw caps
Miscellaneous parts, for system board:
08K5648
v
v
v
v
v
v
I/O bracket (right/left)
Guide, keyboard connector
Hex stud
(b) Card modem connector
Flat head screw (M2.5 x 4.8)
Screw caps
(continued)
96 ThinkPad A21e
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Parts list
P/N
FRU
Miscellaneous parts, for diskette drive:
04P3967
v
v
v
v
Bezel
Bracket
Flexible cable
Screw caps
Miscellaneous parts, for LCD:
04P3968
v
v
v
v
v
Latch (right/left)
Spring
Spacer (for 15.0-in.)
Blank cap, UltraPort
Screw caps
Miscellaneous kit for LCD 15.0-in. LG
04P3050
v
v
v
v
v
Latch (RH 15.0 LG)
Latch (LH 15.0 LG)
Spring (15.0 LG)
Spacer (for 15.0-in.)
Screw caps
ThinkPad A21e 97
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Parts list
Optional FRUs
64-MB SDRAM SO DIMM
20L0264
128-MB SDRAM SO DIMM
20L0265
02K6666
02K6670
02K6669
02K6677
02K6673
08K9579
27L3436
27L4087
27L3447
05K9235
00N7955
00N8254
08K9508
08K9531
27L3427
08K9533
08K9509
08K3125
19K5888
22P6444
08K3338
08K3252
08K3348
02K6642
08K6067
02K6645
02K8669
AC adapter (72W), 3-pin (ASTEC)
AC adapter (72W), 3-pin (DELTA)
AC adapter (72W), 2-pin (ASTEC)
AC adapter (72W), 2-pin (SANKEN)
AC adapter (72W), 2-pin (DELTA)
Ultrabay 2000 CD-ROM drive (LG)
Ultrabay 2000 CD-ROM drive (TEAC)
Ultrabay 2000 DVD-ROM drive (Hitachi)
Ultrabay 2000 DVD-ROM drive (MKE)
Ultrabay 2000 SuperDisk drive
CD-RW drive (MKE)
ZIP-250
Hard-disk drive (10.0 GB), SSD
Hard-disk drive (10.0 GB), Hitachi
Hard-disk drive (20.0 GB), SSD
Hard-disk drive (20.0 GB), Hitachi
Hard-disk drive (32.0 GB), SSD
Mini PCI combo card (Intel)
Mini PCI combo card CR
Mini PCI combo card (3Com)
Mini PCI modem card (IBM CR)
Mini PCI modem card (Ambit)
Mini PCI Ethernet card (Intel)
Multiple battery charger
Ultrabay 2000 2nd HDD adapter
Ultrabay 2000 battery
ThinkPad Port Replicator
98 ThinkPad A21e
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Parts list
Common parts list
Tools
Triconnector wrap plug
PC test card
72X8546
35G4703
66G5180
05K2580
95F3598
05K4695
05K4694
27L8126
–
Audio wrap cable
USB parallel test cable
Screwdriver kit
Torque screwdriver
5 mm socket wrench
Screwdriver
ThinkPad hardware maintenance diskette version
1.61
Note: Download the file from the Web site.
Power cords (system)
IBM power cords for a specific country are usually
available only in that region:
For 2-pin power cords:
Region
P/N
Canada, United States of America
13H5264
13H5273
36L8870
Japan
Argentina
For 3-pin power cords:
Region
P/N
Australia, New Zealand
Taiwan, Thailand
Italy
76H3514
76H3516
76H3530
76H3520
76H3524
76H3518
76H3522
76H3532
76H3535
02K0539
Denmark
UK, Hong Kong
European countries
India, South Africa
Israel
Korea
People’s Republic of China (other than Hong
Kong)
Switzerland
76H3528
ThinkPad A21e 99
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Notices
Notices
References in this publication to IBM products, programs,
or services do not imply that IBM intends to make these
available in all countries in which IBM operates. Any
reference to an IBM product, program, or service is not
intended to state or imply that only that IBM product,
program, or service may be used. Any functionally
equivalent product, program, or service that does not
infringe any of the intellectual property rights of IBM may
be used instead of the IBM product, program, or service.
The evaluation and verification of operation in conjunction
with other products, except those expressly designated by
IBM, are the responsibility of the user.
IBM may have patents or pending patent applications
covering subject matter in this document. The furnishing of
this document does not give you any license to these
patents. You can send license inquiries, in writing, to the
IBM Director of Licensing, IBM Corporation, 500 Columbus
Avenue, Thornwood, NY 10594, U.S.A.
Trademarks
The following terms are trademarks of the IBM Corporation
in the United States or other countries or both:
IBM
ThinkPad
TrackPoint
UltraBay
Asset ID
PC-Doctor DOS is a trademark of PC-Doctor, Inc., in the
United States and other countries.
Microsoft, Windows, Windows NT, and the Windows logo
are trademarks of Microsoft Corporation in the United
States and/or other countries.
Pentium and Celeron are trademarks of Intel Corporation
in the Unites States and/or other countries. (For a
complete list of Intel trademarks, see
http://www.intel.com/trademarx.htm)
Other company, product, or service names may be the
trademarks or service marks of others.
100 ThinkPad A21e
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Notices
ThinkPad A21e 101
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ꢀꢁꢂꢃ
Part Number: 06P8883
Printed in U.S.A.
(1P) P/N: 06P8883
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