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IBM ThinkPad X20 Owner's manual

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IBM Mobile Systems
ThinkPad - X20 Series computer
Hardware Maintenance Manual
June 2000
IBM Mobile Systems
ThinkPad - X20 Series computer
Hardware Maintenance Manual
June 2000
IBM
i
note
Before using this information and the product it sup-
ports, be sure to read the general information under
“Notices” on page 79
First Edition (June 2000)
The following paragraph does not apply to the United
Kingdom or any country where such provisions are
inconsistent with local law:
INTERNATIONAL BUSINESS MACHINES CORPO-
RATION 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; there-
fore, 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 improve-
ments 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 pro-
grams), 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 Corpo-
ration 2000. All rights reserved. Note to US Government
Users — Documentation related to restricted rights — Use,
duplication, or disclosure is subject to restrictions set forth
in GSA ADP Schedule Contract with IBM Corp.
Contents
Introduction . . . . . . . . . . . . . . . . . . . 1
Important service information ........... 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
Safety information . . . . . . . . . . . . . . . . . 10
General safety . . . . . . . . . . . . . . . . . 10
Electrical safety . . . . . . . . . . . . . . . . 11
Safety inspection guide ............ 12
Handling electrostatic discharge-sensitive devices 13
Grounding requirements . . . . . . . . . . . . 14
Laser compliance statement ............ 15
General descriptions . . . . . . . . . . . . . . . 17
Read this first ................... 17
Related service information ............ 19
Service Web site ............... 19
Passwords . . . . . . . . . . . . . . . . . . 19
Power management . . . . . . . . . . . . . . 21
Checkout guide . . . . . . . . . . . . . . . . . . 24
Testing the computer ............. 24
Detecting system information with PC-Doctor . . 26
Power system checkout ............ 26
ThinkPad X20 . . . . . . . . . . . . . . . . . . 31
Product overview . . . . . . . . . . . . . . . . . 32
Specifications . . . . . . . . . . . . . . . . . 32
Status indicators . . . . . . . . . . . . . . . . 32
Fn key combinations .............. 35
Symptom-to-FRU index . . . . . . . . . . . . . . 36
Numeric error codes .............. 36
Error messages . . . . . . . . . . . . . . . . 38
Beep symptoms . . . . . . . . . . . . . . . . 38
LCD-related symptoms . . . . . . . . . . . . . 39
Intermittent problems . . . . . . . . . . . . . . 40
Undetermined problems . . . . . . . . . . . . 40
FRU replacement notices ............. 42
Screw notices . . . . . . . . . . . . . . . . . 42
Retaining serial numbers ............ 43
Removing and replacing a FRU .......... 45
1010 Battery pack ............... 46
1020 DIMM . . . . . . . . . . . . . . . . . . 47
1030 Backup battery .............. 48
1040 Hard disk drive .............. 49
1050 Keyboard . . . . . . . . . . . . . . . . 50
1060 Mini PCI adapter ............. 52
1070 Fan assembly .............. 53
1080 LCD assembly .............. 54
Contents iii
1090 Case Keyboard deck ........... 56
1100 Speaker . . . . . . . . . . . . . . . . . 57
1110 PC Card slot assembly .......... 58
1120 RJ11, RJ45 ............... 59
1130 System board .............. 60
1140 LCD USB cover ............. 61
1150 Front bezel ............... 61
1160 LCD panel ................ 62
Locations . . . . . . . . . . . . . . . . . . . . . 66
Front view . . . . . . . . . . . . . . . . . . . 66
Rear view . . . . . . . . . . . . . . . . . . . 67
Bottom view . . . . . . . . . . . . . . . . . . 68
Parts List . . . . . . . . . . . . . . . . . . . . . 69
X20 series model matrix ............ 69
LCDFRU . . . . . . . . . . . . . . . . . . . 69
System . . . . . . . . . . . . . . . . . . . . 72
Keyboard . . . . . . . . . . . . . . . . . . . 73
Base Cover FRU ............... 74
Miscellaneous parts . . . . . . . . . . . . . . 74
Options FRU list ................ 75
Common parts list ............... 76
Notices . . . . . . . . . . . . . . . . . . . . . 79
Trademarks . . . . . . . . . . . . . . . . . . . 79
iv ThinkPad X20
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.
FRU replacement strategy
Before replacing parts
Ensure 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:
If you are instructed to replace a FRU, but the
replacement does not correct the problem,
reinstall the original FRU before you continue.
Some computers have both a processor board and a
system board. If you are instructed to replace either
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.
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.
Attention
A customized setup configuration (other than default
settings) may exist on the computer you are servicing.
Running Automatic Configuration may alter those set-
tings. Note the current configuration settings (using the
View Configuration option); then, when service has
been completed, verify that the settings are in place.
Introduction 1
Hard disk drive replacement strategy:
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 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 high-
lighted 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
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 replace-
ment, 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 lis-
tening 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, muβ sichergestellt
werden, daβ keine Schrauben, Federn oder andere
Kleinteile fehlen oder im Gehäuse vergessen wurden.
Der Computer muβ 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 ciò
scuotendo l'elaboratore e prestando attenzione ad
eventuali rumori; eventuali parti o pezzetti metallici
possono provocare cortocircuiti pericolosi.
Antes de encender el sistema despues de sustituir
una FRU, compruebe que todos los tornillos, muelles
y demás piezas pequeñas se encuentran en su sitio y
no se encuentran sueltas dentro del sistema.
Compruébelo agitando el sistema y escuchando los
posibles ruidos que provocarían. Las piezas metálicas
pueden causar cortocircuitos eléctricos.
Introduction 3
Safety Notice 2
Some 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 regu-
lations. 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.
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.
4ThinkPad X20