IBM Thinkpad A21e 2000 Manual

							IBM Mobile Systems
ThinkPad Computer
Hardware Maintenance Manual

            
						

							NoteBefore using this information and the product it
supports, be sure to read the general information
under “Notices” on page 100.
Second Edition (December 2000)
The following paragraph does not apply to the United
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© Copyright IBM Corp. 2000  
						

							Contents
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............12
General safety............12
Electrical safety...........13
Safety inspection guide.........14
Handling electrostatic discharge-sensitive devices 15
Grounding requirements.........16
Laser compliance statement.........16
General descriptions..........19
Read this first.............19
What to do first:...........19
Related service information.........21
Service Web site...........21
Using Recovery CD..........21
Passwords.............22
Power management..........24
Checkout guide............27
Testing the computer..........27
Detecting system information with PC-Doctor . . . 29
Power system checkout.........29
ThinkPad A21e............33
Product overview............35
Specifications............35
Status indicators...........36
FRU Tests.............38
Fn key combinations..........40
Symptom-to-FRU index..........41
Numeric error codes..........41
Error messages...........44
Beep symptoms...........45
No beep symptoms..........45
LCD-related symptoms.........46
Intermittent problems..........46
Undetermined problems.........47
FRU replacement notices.........47
Screw notices............47
Retaining serial numbers.........48
Removing and replacing a FRU........50
1010 Battery pack...........51
1020 DIMM............52
1030 Mini PCI adapter.........53
1040 Backup battery..........55
1050 Hard-disk drive..........56
iii  
						

							1060 Ultrabay 2000 device........58
1070 Keyboard...........60
1080 Keyboard CRU insulator.......63
1090 Hinge cover...........64
1100 Keyboard bezel and speaker......65
1110 Speaker cable..........67
1120 Sub card............68
1130 PC Card slot assembly.......70
1140 Fan assembly..........71
1150 Diskette drive..........73
1160 Upper shield...........74
1170 System board..........75
2010 LCD assembly..........77
2020 Front bezel...........79
2030 Inverter card..........81
2040 LCD panel...........83
Locations..............87
Front view.............87
Rear view.............88
Bottom view............89
Parts list..............90
LCDFRU.............93
Keyboard.............95
Miscellaneous parts..........96
Optional FRUs............98
Common parts list...........99
Notices..............100
Trademarks............100
ivThinkPad A21e 
						

							Introduction
Important service information
ImportantDiskette 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 partsMake 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.
1   
						

							AttentionThe 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 driveAlways try to run a low-level format before replacing a
hard-disk drive.
AttentionThe 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
driveDiskette
capacityCompatibility
3.5-inch 1.0 MB Read and write
2.0 MB Read and write
4.0 MB Not compatibleImportant service information
2ThinkPad A21e 
						

							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 1Before 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 unitéen clientèle, vérifiez que
tous les ressorts, vis et autres pièces sont bien en
place et bien fixées. Pour ce faire, secouez l’unitéet
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, mußsichergestellt
werden, daßkeine Schrauben, Federn oder andere
Kleinteile fehlen oder im Gehäuse vergessen
wurden. Der Computer mußgeschüttelt und auf
Klappergeräusche geprüft werden. Metallteile
oder-splitter können Kurzschlüsse erzeugen.
Prima di accendere l’elaboratore dopo cheéstata
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
ÚÚscuotendo 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.
Safety notices
Introduction3 
						

							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 niàl’eau.
Ne les mettez pas en court- circuit. Pour les mettre
au rebut, conformez-vousàla réglementation en
vigueur. Lorsque vous remplacez la pile de
sauvegarde ou celle de l’horloge temps réel, veillez
àn’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 dieörtlichen
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)
Safety notices
4ThinkPad A21e 
						

							Continuation of Safety notice 2
Alcune batterie di riserva contengono una piccola
quantitàdi 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 utilizaciónde
una batería no apropiada puede provocar la ignición
o explosión de la misma.
Safety notices
Introduction5 
						

							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 niàl’eau. Ne la mettez pas
en court- circuit. Pour la mettre au rebut,
conformez-vousàla réglementation en vigueur.
Lorsque vous remplacez la batterie, veillezà
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 dieörtlichen
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 quantitàdi 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 bateríano
apropiada puede provocar la ignición o explosiónde
la misma.
Safety notices
6ThinkPad A21e