Ibm ThinkPad A22 Manual
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IBM Mobile Systems
ThinkPad Computer
Hardware Maintenance Manual
October 2001
This manual supports:
ThinkPad A20m, A21m, A22m
(MT 2628/2633)
A20p, A21p, A22p
(MT 2629)
ThinkPad Dock (MT 2631)
Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 150.
Second Edition (October 2001)
The following paragraph does not apply to the United
Kingdom or any country where such provisions are
inconsistent with local law:
INTERNATIONAL BUSINESS MACHINES CORPORATION
PROVIDES THIS PUBLICATION “AS IS” WITHOUT ANY
WARRANTY OF ANY KIND, EITHER EXPRESS OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
LIMITED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. Some states
do not allow disclaimer or express or implied warranties in
certain transactions; therefore, this statement may not
apply to you.
This publication could include technical inaccuracies or
typographical errors. Changes are periodically made to the
information herein; these changes will be incorporated in
new editions of the publication. IBM may make
improvements or changes to the products or the programs
described in this publication at any time.
It is possible that this publication may contain references
to, or information about, IBM products (machines and
programs), programming, or services that are not
announced in your country. Such references or information
must not be construed to mean that IBM intends to
announce such IBM products, programming, or services in
your country.
Requests for technical information about IBM products
should be made to your IBM authorized dealer or your IBM
marketing representative.
© Copyright International Business Machines
Corporation 2001. All rights reserved.
US Government Users Restricted Rights – Use, duplication
or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.
About this manual
This manual contains service and reference information for
IBM ThinkPad A20, A21, A22 (MT2628, 2629, 2633), and
ThinkPad Dock (MT2631) products. Use this manual along
with the advanced diagnostic tests to troubleshoot
problems.
The manual is divided into sections as follows:
vThe common sections provide general information,
guidelines, and safety information required in servicing
computers.
vThe product-specific section includes service, reference,
and product-specific parts information.
Important
This manual is intended for trained service
personnel who are familiar with ThinkPad products.
Use this manual along with the advanced diagnostic
tests to troubleshoot problems effectively.
Before servicing an IBM ThinkPad product, be sure
to review the safety information under Safety“
notices: multilingual translations on page 3, Safety” “
information on page 14, and Laser compliance” “
statement on page 18.”
© Copyright IBM Corp. 2001 iii
Contents
About this manual . . . . . . . . . . . iii
Introduction . . . . . . . . . . . . . 1
Important service information . . . . . . . . . 1
Strategy for replacing FRUs . . . . . . . . 1
How to use error messages . . . . . . . . 2
Diskette compatibility matrix . . . . . . . . . 2
Safety notices: multilingual translations . . . . . . 3
Safety information. . . . . . . . . . . . 14
General safety . . . . . . . . . . . . 14
Electrical safety . . . . . . . . . . . 15
Safety inspection guide . . . . . . . . . 16
Handling electrostatic discharge-sensitive devices 17
Grounding requirements . . . . . . . . . 18
Laser compliance statement. . . . . . . . . 18
General descriptions . . . . . . . . . . 23
Read this first . . . . . . . . . . . . . 23
What to do first . . . . . . . . . . . 23
Related service information . . . . . . . . . 25
Service web site . . . . . . . . . . . 25
Product recovery program . . . . . . . . 25
Passwords . . . . . . . . . . . . . 27
Power management . . . . . . . . . . 30
Checkout guide . . . . . . . . . . . . 33
Testing the computer . . . . . . . . . . 33
Detecting system information with PC-Doctor. . . 35
Power system checkout . . . . . . . . . 35
ThinkPad A20m/p, A21m/p and A22m/p. . . . . 39
Product overview . . . . . . . . . . . . 41
Specifications . . . . . . . . . . . . 41
Status indicators . . . . . . . . . . . 44
FRU tests . . . . . . . . . . . . . 46
Fn key combinations . . . . . . . . . . 48
Symptom-to-FRU index . . . . . . . . . . 49
Numeric error codes . . . . . . . . . . 49
Error messages . . . . . . . . . . . 52
Beep symptoms . . . . . . . . . . . 53
No beep symptoms . . . . . . . . . . 53
LCD-related symptoms . . . . . . . . . 54
Intermittent problems . . . . . . . . . . 55
Undetermined problems . . . . . . . . . 55
FRU replacement notices . . . . . . . . . 56
Screw notices . . . . . . . . . . . . 56
Retaining serial numbers. . . . . . . . . 57
Removing and replacing a FRU. . . . . . . . 59
1010 Battery pack. . . . . . . . . . . 60
1020 DIMM . . . . . . . . . . . . 61
1030 Mini PCI adapter . . . . . . . . . 63
© Copyright IBM Corp. 2001 v
1040 Backup battery . . . . . . . . . . 66
1050 Hard-disk drive or RF ID adapter . . . . 67
1060 Ultrabay 2000 device . . . . . . . . 69
1070 Keyboard . . . . . . . . . . . 71
1080 Keyboard CRU insulator . . . . . . . 74
1090 Hinge cover and clear sheet icon . . . . 75
1100 Keyboard bezel and speaker . . . . . . 76
1110 Microphone and speaker cable . . . . . 78
1120 Sub card . . . . . . . . . . . . 80
1130 PC Card slot assembly . . . . . . . 82
1140 Fan assembly . . . . . . . . . . 83
1150 Diskette drive . . . . . . . . . . 85
1160 Upper shield. . . . . . . . . . . 87
1170 TV card . . . . . . . . . . . . 88
1180 CPU socket and CPU . . . . . . . . 89
1190 System board and RJ45/11 connector
assembly . . . . . . . . . . . . 91
Thermal rubbers location. . . . . . . . . 93
2010 LCD assembly . . . . . . . . . . 94
2020 Front bezel . . . . . . . . . . . 96
2030 Inverter card . . . . . . . . . . 99
2040 LCD panel . . . . . . . . . . . 101
3010 ThinkPad Dock PCI cover . . . . . . 105
3020 ThinkPad Dock top cover . . . . . . 107
Locations . . . . . . . . . . . . . . 112
Front view. . . . . . . . . . . . . 112
Rear view . . . . . . . . . . . . . 113
Bottom view . . . . . . . . . . . . 114
Parts list . . . . . . . . . . . . . . 115
A series model matrix . . . . . . . . . 115
Overall . . . . . . . . . . . . . 123
AC adapter . . . . . . . . . . . . 136
LCD FRUs . . . . . . . . . . . . 136
Keyboard . . . . . . . . . . . . . 140
Recovery CDs . . . . . . . . . . . 141
Miscellaneous parts . . . . . . . . . . 145
Optional FRUs . . . . . . . . . . . 147
Common parts list . . . . . . . . . . 148
Notices . . . . . . . . . . . . . . 150
Trademarks . . . . . . . . . . . . 150
vi ThinkPad A20m/p, A21m/p, A22m/p
Introduction
Important service information
Important
BIOS and device driver fixes are
customer-installable. The BIOS and device drivers
are posted on the IBM support site
http://www.ibm.com/pc/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:
vIf you are instructed to replace a FRU but the
replacement does not correct the problem, reinstall
the original FRU before you continue.
vSome 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.
vIf 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.
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.
© Copyright IBM Corp. 2001 1
Safety notices: multilingual translations
In this manual, safety notices appear in English with a
page number reference to the appropriate multi-lingual,
translated safety notice found in this section.
The following safety notices are provided in English,
French, German, Italian, and Spanish languages.
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 apr s’ è
remplacement d une unit en client le, v rifiez que’ é è é
tous les ressorts, vis et autres pi ces sont bien enè
place et bien fix es. Pour ce faire, secouez l unit eté ’ é
assurez-vous qu aucun bruit suspect ne se produit. Des’
pi ces m talliques ou des copeaux de m tal pourraientè é é
causer un court-circuit.
Bevor nach einem FRU-Austausch der Computer
wieder angeschlossen wird, mu sichergestellt werden,ß
da keine Schrauben, Federn oder andere Kleinteileß
fehlen oder im Geh use vergessen wurden. Derä
Computer mu gesch ttelt und auf Klapperger uscheß ü ä
gepr ft werden. Metallteile oder-splitter k nnenü ö
Kurzschl sse erzeugen.ü
Prima di accendere l elaboratore dopo che stata’ é
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’ ’ ò
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
dem s piezas peque as se encuentran en su sitio y noá ñ
se encuentran sueltas dentro del sistema.
Compru belo agitando el sistema y escuchando losé
posibles ruidos que provocar an. Las piezas met licasí á
pueden causar cortocircuitos el ctricos.é
Safety notices
Introduction 3
(continuation of safety notice 2)
Alcune batterie di riserva contengono una piccola
quantit di nichel e cadmio. Non smontarle,à
ricaricarle, gettarle nel fuoco o nell acqua n’ é
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 bater as de reserva contienen unaí
peque a cantidad de n quel y cadmio. No lasñ í
desmonte, ni recargue, ni las eche al fuego o al
agua ni las cortocircuite. Des chelas tal comoé
dispone la normativa local. Utilice s lo bater as queó í
se encuentren en la lista de piezas. La utilizaci nó
de una bater a no apropiada puede provocar laí
ignici n o explosi n de la misma.ó ó
Safety notices
Introduction 5
Safety notice 3
DANGER
The battery pack contains small amounts of nickel.
Do not disassemble it, throw it into fire or water, or
short-circuit it. Dispose of the battery pack as
required by local ordinances or regulations. Use
only the battery in the appropriate parts listing
when replacing the battery pack. Use of an
incorrect battery can result in ignition or explosion
of the battery.
La batterie contient du nickel. Ne la d montez pas,é
ne l exposez ni au feu ni l eau. Ne la mettez pas’ à ’
en court- circuit. Pour la mettre au rebut,
conformez-vous la r glementation en vigueur.à é
Lorsque vous remplacez la batterie, veillez à
n utiliser que les mod les cit s dans la liste de’ è é
pi ces d tach es ad quate. En effet, une batterieè é é é
inappropri e risque de prendre feu ou d exploser.é ’
Akkus enthalten geringe Mengen von Nickel. Sie
d rfen nicht zerlegt, wiederaufgeladen,ü
kurzgeschlossen, oder Feuer oder Wasser
ausgesetzt werden. Bei der Entsorgung die
ö ü ürtlichen Bestimmungen f r Sonderm ll beachten.
Beim Ersetzen der Batterie nur Batterien des Typs
verwenden, der in der Ersatzteilliste aufgef hrt ist.ü
Der Einsatz falscher Batterien kann zu Entz ndungü
oder Explosion f hren.ü
La batteria contiene piccole quantit di nichel. Nonà
smontarla, gettarla nel fuoco o nell acqua n’ é
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.
(continued)
Safety notices
6ThinkPad A20m/p, A21m/p, A22m/p
(continuation of safety notice 3)
Las bater as contienen peque as cantidades deí ñ
n quel. No las desmonte, ni recargue, ni las eche alí
fuego o al agua ni las cortocircuite. Des chelas talé
como dispone la normativa local. Utilice s loó
bater as que se encuentren en la lista de piezas alí
sustituir la bater a. La utilizaci n de una baterí ó ía no
apropiada puede provocar la ignici n o explosi nó ó
de la misma.
Safety notices
Introduction 7
Safety notice 4
DANGER
The lithium battery can cause a fire, an explosion,
or a severe burn. Do not recharge it, remove its
polarized connector, disassemble it, heat it above
100 C (212 F), incinerate it, or expose its cell° °
contents to water. Dispose of the battery as
required by local ordinances or regulations. Use
only the battery in the appropriate parts listing. Use
of an incorrect battery can result in ignition or
explosion of the battery.
La pile de sauvegarde contient du lithium. Elle
pr sente des risques d incendie, d explosion ou deé ’ ’
br lures graves. Ne la rechargez pas, ne retirez pasû
son connecteur polaris et ne la d montez pas. Neé é
l exposez pas une temperature sup rieure’ à é à
100 C, ne la faites pas br ler et n en exposez pas° û ’
le contenu l eau. Mettez la pile au rebutà ’
conform ment la r glementation en vigueur. Uneé à é
pile inappropri e risque de prendre feu oué
d exploser.’
Die Systembatterie ist eine Lithiumbatterie. Sie
kann sich entz nden, explodieren oder schwereü
Verbrennungen hervorrufen. Batterien dieses Typs
d rfen nicht aufgeladen, zerlegt, ber 100 C erhitztü ü
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 rtlichenö
Bestimmungen f r Sonderm ll beachten. Beimü ü
Ersetzen der Batterie nur Batterien des Typs
verwenden, der in der Ersatzteilliste aufgef hrt ist.ü
Der Einsatz falscher Batterien kann zu Entz ndungü
oder Explosion f hren.ü
(continued)
Safety notices
8ThinkPad A20m/p, A21m/p, A22m/p
(continuation of safety notice 4)
La batteria di supporto e una batteria al litio e puo
incendiarsi, esplodere o procurare gravi ustioni.
Evitare di ricaricarla, smontarne il connettore
polarizzato, smontarla, riscaldarla ad una
temperatura superiore ai 100 gradi centigradi,
incendiarla o gettarla in acqua. Smaltirla secondo
la normativa in vigore (DPR 915/82, successive
disposizioni e disposizioni locali). L impiego di una’
batteria non adatta potrebbe determinare l incendio’
o l’esplosione della batteria stessa.
La bater a de repuesto es una bater a de litio yí í
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.
Des chela tal como dispone la normativa local.é
Safety notices
Introduction 9
Safety notice 5
If the LCD breaks and the fluid from inside the LCD
gets into your eyes or on your hands, immediately
wash the affected areas with water for at least 15
minutes. Seek medical care if any symptoms from the
fluid are present after washing.
Si le panneau d affichage cristaux liquides se brise et’ à
que vous recevez dans les yeux ou sur les mains une
partie du fluide, rincez-les abondamment pendant au
moins quinze minutes. Consultez un m decin si desé
sympt mes persistent apr s le lavage.ô è
Die Leuchtstoffr hre im LCD-Bildschirm enth ltö ä
Quecksilber. Bei der Entsorgung die rtlichenö
Bestimmungen f r Sonderm ll beachten. Derü ü
LCD-Bildschirm besteht aus Glas und kann zerbrechen,
wenn er unsachgem behandelt wird oder deräß
Computer auf den Boden f llt. Wenn der Bildschirmä
besch digt ist und die darin befindliche Fl ssigkeit inä ü
Kontakt mit Haut und Augen ger t, sollten dieä
betroffenen Stellen mindestens 15 Minuten mit Wasser
abgesp lt und bei Beschwerden anschlie end ein Arztü ß
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 reas afectadas con agua duranteá
15 minutos como m nimo. Obtenga atenci n medica sií ó
se presenta algún síntoma del fluido despues de
lavarse.
Safety notices
10 ThinkPad A20m/p, A21m/p, A22m/p
Safety notice 6
DANGER
To avoid shock, do not remove the plastic cover
that protects the lower part of the inverter card.
Afin d viter tout risque de choc lectrique, ne’é é
retirez pas le cache en plastique prot geant laé
partie inf rieure de la carte d alimentation.é ’
Aus Sicherheitsgr nden die Kunststoffabdeckung,ü
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
pl stico que rodea la parte baja de la tarjetaá
invertida.
Safety notices
Introduction 11
Safety notice 8
DANGER
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 unit rempla able en client le,é ç è
mettez le syst me hors tension, d branchez tousè é
les cordons d alimentation des socles de prise de’
courant, retirez la batterie et d connectez tous lesé
cordons d interface.’
Die Stromzufuhr mu abgeschaltet, alle Stromkabelß
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 el ctrica, quite la bateré ía y, a
continuaci n, desconecte cualquier cable deó
conexi n entre dispositivos.ó
Safety notices
Introduction 13
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.
v When lifting any heavy object:
1. Ensure you can stand safely without slipping.
2. Distribute the weight of the object equally between
your feet.
3. Use a slow lifting force. Never move suddenly or
twist when you attempt to lift.
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 Do not perform any action that causes hazards to the
customer, or that makes the equipment unsafe.
v 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 Keep your toolcase away from walk areas so that other
people will not trip over it.
v 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 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.
v Do not wear jewelry, chains, metal-frame eyeglasses, or
metal fasteners for your clothing.
Attention: Metal objects are good electrical
conductors.
v 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 After service, reinstall all safety shields, guards, labels,
and ground wires. Replace any safety device that is
worn or defective.
v Reinstall all covers correctly before returning the
machine to the customer.
Safety information
14 ThinkPad A20m/p, A21m/p, A22m/p
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 Do not work alone under hazardous conditions or near
equipment that has hazardous voltages.
v Disconnect all power before:
– Performing a mechanical inspection
– Working near power supplies
– Removing or installing main units
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.
v 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.
Safety information
Introduction 15
v Mechanical hazards, such as loose or missing hardware
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 Avoid contact with other people.
Safety information
Introduction 17
v Wear a grounded wrist strap against your skin to
eliminate static on your body.
v Prevent the part from touching your clothing. Most
clothing is insulative and retains a charge even when
you are wearing a wrist strap.
v 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.
v Select a grounding system, such as those listed below,
to provide protection that meets the specific service
requirement.
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 an optical storage device; such as a
CD-ROM drive or DVD-ROM drive. They are also sold
separately as options. The 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.
Safety information
18 ThinkPad A20m/p, A21m/p, A22m/p
When a CD-ROM drive, DVD drive or the other laser
product is installed, note the following:
CAUTION:
Use of controls or adjustments or performance of
procedures other than those specified herein might
result in hazardous radiation exposure.
O uso de controles, ajustes ou desempenho de
procedimentos diferentes daqueles aqui especificados
pode resultar em perigosa exposi o radia o.çã à çã
Pour viter tout risque d exposition au rayon laser,é ’
respectez les consignes de r glage et d utilisation desé ’
commandes, ainsi que les proc dures d crites.é é
Werden Steuer- und Einstellelemente anders als hier
festgesetzt verwendet, kann gef hrliche Laserstrahlungä
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 aqu especificadosí
puede provocar la exposici n a radiaciones peligrosas.ó
Laser compliance statement
Introduction 19
Opening the CD-ROM drive, DVD-ROM drive or the other
optical storage device could result in exposure to
hazardous laser radiation. There are no serviceable parts
inside those drives. Do not open.
Some CD-ROM drives, DVD-ROM drives or the other
optical storage devices contain an embedded Class 3A or
Class 3B laser diode. Note the following:
Laser compliance statement
20 ThinkPad A20m/p, A21m/p, A22m/p
DANGER
Emits visible and invisible laser radiation when
open. Do not stare into the beam, do not view
directly with optical instruments, and avoid direct
exposure to the beam.
Radia o por raio laser ao abrir. N o olhe fixo noçã ã
feixe de luz, n o olhe diretamente por meio deã
instrumentos ticos e evite exposi o direta com oó çã
feixe de luz.
Rayonnement laser si carter ouvert. vitez de fixerÉ
le faisceau, de le regarder directement avec des
instruments optiques, ou de vous exposer au
rayon.
Laserstrahlung bei ge ffnetem Ger t. Nicht direktö ä
oder ber optische Instrumente in den Laserstrahlü
sehen und den Strahlungsbereich meiden.
Kinyit skor l zersugá é ár ! Ne nézzen bele se szabad
szemmel, se optikai eszk z kkel. Ker lje aö ö ü
sug rnyal bbal valá á ó érintkez st !é
Aprendo l unit vengono emesse radiazioni laser.’ à
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 ptico el haz de luz.ó
Evite la exposici n directa al haz.ó
Laser compliance statement
Introduction 21
Laser compliance statement
22 ThinkPad A20m/p, A21m/p, A22m/p
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
v Only certified trained personnel should
service the computer.
v Read the entire FRU removal and replacement
page before replacing any FRU.
v Use new nylon-coated screws when you
replace FRUs.
v 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.
v 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.
v 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
© Copyright IBM Corp. 2001 23
__ 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
v Scratched (cosmetic) parts
v Distortion, deformation or discoloration of the cosmetic
parts
v Cracked or broken plastic parts, broken latches, broken
pins, or broken connectors caused by excessive force
v Damage caused by liquid spilled into the system
v Damage caused by the improper insertion of a PC Card
or the installation of an incompatible card
v Damage caused by foreign material in the diskette drive
v Diskette drive damage caused by pressure on the
diskette drive cover or by the insertion of a diskette with
multiple labels
v Damaged or bent diskette eject button
v Fuses blown by attachment of a nonsupported device
v Forgotten computer password (making the computer
unusable)
v 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.
v If the spindle of a hard-disk drive becomes noisy, it may
have been subjected to excessive force, or dropped.
Read this first
24 ThinkPad A20m/p, A21m/p, A22m/p
Creating the service partition:
To create the Service Partition and install the preloaded
system from the Recovery CD, do the following:
To create the Service Partition (SP):
1. Erase all partitions on the hard-disk drive, using FDISK
or a similar application.
2. Boot with the Recovery CD (and the boot diskette if
required.)
3. Following message appears: “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
do not receive this message ; go to step 1.
4. Enter . The Service Partition is created and loadedY
with the Product Recovery program files.
Note: If you do not want to create the Service
Partition, press N key, and then go to step 8.
5. At next window, press Enter to continue.
v The Service Partition is created. The system
automatically reboots during this process.
v The recovery process copies some files to the
Service Partition and, PKUNZIPs others.
v Follow the prompts. You may be prompted to
change CDs.
v When the process is complete, the system reboots.
Continue to step 6 to install preloaded system.
Install preloaded system from CD:
6. Boot with the Recovery CD (and the boot diskette if
required.)
7. If the hard-disk drive is blank, the following message
appears: “Your computer originally included a
Product Recovery program ... Reinstall the
Product Recovery Program? (Y/N) [ ]”.
v To install the Service Partition, go to step 4.
v To preload the hard-disk drive without installing the
Service Partition, press the N key.
8. If you get a message asking which operating system
to install, highlight the proper operating system and
press Enter.
9. A message appears: . Press Enter to“ ”Full Recovery:
select.
10. Enter the at each of the next three windows.Y
11. Follow the prompts to complete Recovery.
To create a recovery repair diskette
If the prompt needed for access to the Product Recovery
program does not appear, you can recover it by use of the
Related service information
26 ThinkPad A20m/p, A21m/p, A22m/p
Power-on password:
A power-on password (POP) protects the system from
being powered on by an unauthorized person. The
password must be entered before an operating system can
be booted.
Hard-disk password:
There are two hard-disk passwords (HDPs):
v User HDP for the user—
v 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: User onlyThere are two modes for the HDP: and
Master + User Master + User. The mode requires
two HDPs; the system administrator enters both in
the same operation. The system administrator then
provides the user HDP to the system user.
Attention
If the user HDP has been forgotten, check whether
a master HDP has been set. It it has, it can be used
for access to the hard-disk drive. If no master HDP
is available, IBM does not provide any services to
reset either the user or the master HDP, or to
recover data from the hard-disk drive. The hard-disk
drive can be replaced for a scheduled fee.
Supervisor password:
A supervisor password (SVP) protects the system
information stored in the IBM BIOS Setup Utility. The SVP
must be entered in order to get access to the IBM BIOS
Setup Utility and make changes to system configuration
settings.
Attention
If the SVP has been forgotten and cannot be made
available to the servicer, there is no service
procedure to reset the password. The systemboard
must be replaced for a scheduled fee.
How to remove the power-on password
To remove a POP that you have forgotten, do the
following:
(A) If no SVP has been set:
1. Turn off the computer.
2. Remove the battery pack.
Related service information
28 ThinkPad A20m/p, A21m/p, A22m/p
Power management
To reduce power consumption, the computer has three
power management modes: screen blank, standby, and
hibernation.
Notes
v Screen blank mode is called instandby mode
Windows 95 and Windows NT.
v Standby mode is called insuspend mode
Windows 95 and Windows NT.
Screen blank mode
Screen blank mode has three variants, as follows:
1. If you press Fn + F3, or the time set on the LCD off“
timer in IBM BIOS Setup Utility expires,”
v The LCD backlight turns off.
v The hard-disk drive motor stops.
v The speaker is muted.
2. If you are using the ACPI operating system and you
press Fn + F3,
v The LCD backlight turns off.
v The hard-disk drive motor stops.
3. If the time set on the Turn off monitor timer in the“ ”
operating system expires,
v The LCD backlight turns off.
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:
v The LCD is powered off.
v The hard-disk drive is powered off.
v The CPU stops.
To enter standby mode, press Fn + F4.
Note: You can change the action of Fn + F4, if you are
using the ACPI operating system.
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 that time.
Related service information
30 ThinkPad A20m/p, A21m/p, A22m/p
v 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 for the APM operating system:
Even if you do not set the low-battery alarm, the charge
indicator notifies you when 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.
If you are using the ACPI operating system, only the
low-battery alarm is available.
To cause the computer to return from standby mode and
resume operation, do one of the following:
v Press the Fn key.
v Open the LCD cover (only if you are using Windows Me
and you entered standby mode by closing the LCD
cover.)
v Turn on the power switch.
Also, the computer automatically returns from standby
mode and resumes operation in either of the following
events:
v The ring indicator (RI) is signaled by a serial device or a
PC Card device (Windows 2000 does not support the
ring indicator (RI) resume by PC Card device.)
v The time set on the resume timer elapses. In Windows
98, the Scheduled Tasks setting takes priority over the
Resume on timer selection in the Power Management“
Properties window.”
Note: The computer does not accept any input
immediately after it enters standby 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.
Related service information
General descriptions 31
Produkt Specifikationer
| Mærke: | Ibm |
| Kategori: | Laptop |
| Model: | ThinkPad A22 |
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