IBM Thinkpad X20 X21 X22 X23 X24 Manual

							ThinkPad X20, X21, X22, X23,
X24 Hardware Maintenance
Manual

           
						

							noteBefore using this information and the product it
supports, be sure to read the general information
under Chapter 4, “Notices” on page 137
First Edition (March 2002)
The following paragraph does not apply to the United
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PROVIDES THIS PUBLICATION “AS IS” WITHOUT ANY
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© Copyright International Business Machines
Corporation 2001. All rights reserved.NotetoUS
Government Users — Documentation related to restricted
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IBM Corp. 
						

							Contents
Chapter 1. Introduction..........1
Importantserviceinformation.........1
FRU replacement strategy........1
Hard disk drive replacement strategy.....2
How to use error messages........2
How to read POST error messages......2
Safety notices: multilingual translations......3
Safetyinformation............12
General safety............12
Electricalsafety...........13
Safety inspection guide.........14
Handling electrostatic discharge-sensitive devices 15
Grounding requirements.........16
Laser compliance statement.........17
Laser radiation.............18
Chapter 2. General descriptions.......21
Read this first.............21
Relatedserviceinformation.........24
ServiceWebsite...........24
Product recovery program........24
Using Recovery CD..........25
Creating a Recovery Repair diskette.....26
Passwords.............26
Power management..........28
Checkout guide............32
Testing the computer..........34
Detecting system information with PC-Doctor . . . 35
Power system checkout.........38
Chapter 3. ThinkPad X20, X21, X22, X23, X24 . . . 39
Product overview............42
Specifications............42
Statusindicators...........45
Fn key combinations..........47
Symptom-to-FRU index..........48
Numeric error codes..........48
Error messages...........50
Beep symptoms...........51
LCD-related symptoms.........52
Intermittentproblems..........52
Undetermined problems.........53
FRU replacement notices.........54
Screwnotices............54
Retaining serial numbers.........55
Removing and replacing a FRU........57
1010 Battery pack...........58
1020 DIMM............59
1030 Backup battery..........60
1040 Hard disk drive..........61
iii  
						

							1050 Keyboard...........63
1060 KBD Control Panel Assemble.....67
1070 Mini PCI adapter.........69
1080 CDC adapter..........70
1090 BDC adapter..........71
1100 Fan assembly..........72
1110 Wirelesslan assembly for X22, X23, X24 . . 74
1120 LCD assembly..........75
1130 Case Keyboard deck........79
1140 Speaker............82
1150 PC Card slot assembly.......84
1160IRDAPort...........85
1170 RJ11, RJ45...........87
1180 System board..........89
1190 LCD USB cover..........91
1200 Front bezel...........92
1210 LCD panel...........93
Locations..............98
Front view for X20, X21.........98
FrontviewforX22 ..........98
Front view for X23, X24.........99
Rear view for X20, X21.........101
Rear view for X22, X23, X24.......101
Bottomview............103
PartsList..............104
X20 series model matrix........104
X21 series model matrix........104
X22 series model matrix........105
X23 series model matrix........105
X24 series model matrix........106
LCDFRU.............107
System.............112
Keyboard.............121
Base Cover FRU..........122
Recovery CDs for X21 Series.......124
Recovery CDs for X22 Series.......126
Recovery CDs for X23 Series.......128
Recovery CDs for X24 Series.......129
Miscellaneous parts..........131
OptionsFRUlist...........133
Common parts list (X20, X21, X22, X23, X24) 135
Chapter 4. Notices...........137
Trademarks.............137
ivThinkPad X20, X21, X22, X23, X24 
						

							Chapter 1. Introduction
Important service information
ImportantBIOS 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 IBM
®HelpCenter®
at 800-772-2227 if they need assistance in obtaining
or installing any diskette fixes.
FRU replacement strategy
Before replacing partsEnsure that all BIOS and device driver 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 the first board
that you replace does not correct the problem, reinstall
the original board, and then replace the other (processor
or system) board.
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.
AttentionA customized setup configuration (other than default
settings) may exist on the computer you are
servicing. Running Automatic Configuration may
alter those settings. Note the current configuration
settings (using the View Configuration option); then,
when service has been completed, verify that the
settings are in place.
1   
						

							Hard disk drive replacement strategy
Always try to run a low-level format before replacing a hard
disk drive.
AttentionThe drive startup sequence in the computer you are
servicing might 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.
How to read POST error messages
POST error messages are displayed on the screen as
three, four, five, or eight digits. The error messages that
can be displayed as shorter POST messages are
highlighted in this index. Some digits have one meaning for
SCSI errors and a different meaning for non-SCSI errors.
The following example shows which digits display the
shorter POST error messages and also defines the SCSI
information in each digit of an eight-digit error message.
Shorter POST Messages
Reserved
Device Code
00000000
ID (SCSI)Logical Unit Number (SCSI)Slot Number (SCSI)Size (SCSI)
Each SCSI device is assigned a unique SCSI ID. Duplicate
SCSI ID settings can generate a false error message. Use
the SCSI ID to determine whether an error message is
coming from an internal or an external device.
2ThinkPad X20, X21, X22, X23, X24 
						

							Safety notices: multilingual translations
The following safety notices are provided in English,
French, German, Italian, and Spanish languages.
Safety Notice 1Before the computer is powered-on after FRU
replacement, make sure all screws, springs, or 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, muβsichergestellt
werden, daβkeine Schrauben, Federn oder andere
Kleinteile fehlen oder im Gehäuse vergessen
wurden. Der Computer muβgeschüttelt 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
ciòscuotendo 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.
Chapter 1. Introduction3 
						

							Safety Notice 2Some standby batteries contain a small amount of
nickel and cadmium. Do not disassemble it,
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.
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.
4ThinkPad X20, X21, X22, X23, X24 
						

							Safety Notice 2Algunas 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.
Chapter 1. Introduction5 
						

							Safety Notice 3The 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.
6ThinkPad X20, X21, X22, X23, X24