IBM ThinkPad T40 Owner's manual

ThinkPad Computer
Hardware Maintenance Manual
July 2005
This manual supports:
ThinkPad T40/T40p, T41/T41p, T42/T42p
ThinkPad Dock II (MT 2877)
(MT 2373/2374/ / )
2375 2376/2378/2379

Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 250.
First Edition (July 2005)
©Copyright Lenovo 2005.
Portions ©Copyright International Business Machines
Corporation 2005.
All rights reserved.
U.S. GOVERNMENT USERS –RESTRICTED RIGHTS:
Our products and/or services are provided with
RESTRICTED RIGHTS. Use, duplication or disclosure by
the Government is subject to the GSA ADP Schedule
contract with Lenovo Group Limited, if any, or the standard
terms of this commercial license, or if the agency is unable
to accept this Program under these terms, then we provide
this Program under the provisions set forth in Commercial
Computer Software–Restricted Rights at FAR 52.227-19,
when applicable, or under Rights in Data-General, FAR
52.227.14 (Alternate III).

Contents
About this manual ...........1
Introduction .............3
Important service information .........3
Strategy for replacing FRUs ........3
How to use error messages ........4
Diskette compatibility matrix .........4
Safety notices: multilingual translations ......4
Safety information............16
General safety ............16
Electrical safety ...........17
Safety inspection guide .........19
Handling devices that are sensitive to electrostatic
discharge ............20
Grounding requirements .........21
Laser compliance statement.........22
General descriptions ..........25
Read this first .............25
What to do first ...........25
Related service information .........27
Service Web site ...........27
Restoring the pre-installed system ......27
Passwords .............28
Power management ..........32
Checkout guide ............35
Testing the computer ..........35
Detecting system information with PC-Doctor...38
Power system checkout .........39
ThinkPad T40/T40p, T41/T41p, T42/T42p Series 43
Product overview ............45
Specifications ............45
Status indicators ...........50
FRU tests .............53
Fn key combinations ..........54
Symptom-to-FRU index ..........58
Numeric error codes ..........58
Error messages ...........62
Beep symptoms ...........63
No-beep symptoms ..........63
LCD-related symptoms .........64
Intermittent problems ..........65
Undetermined problems .........65
FRU replacement notices .........66
Screw notices ............66
Retaining serial numbers.........67
Removing and replacing aFRU........70
1010 Battery pack for 14.1-in. LCD models ...71
1020 Battery pack for 15.0-in. LCD models ...73
©Lenovo 2005. Portions ©IBM Corp. 2005. iii

1030 Ultrabay Slim device ........74
1040 Hard disk drive ..........75
1050 DIMM (optional) .........77
1060 Keyboard ...........79
1070 DIMM (standard) .........83
1080 Modem daughter card (MDC/MDC-2) ...84
1090 Bluetooth/Modem daughter card
(BMDC/BMDC-2) ..........86
1100 Palm rest or Palm rest with fingerprint sensor
(for 14.1-in. LCD models)........88
1110 Keyboard bezel or Keyboard bezel with
fingerprint sensor (for 15.0-in. LCD models) ..91
1120 Mini PCI adapter .........97
1130 Fan assembly .......... 101
1140 Backup battery for 14.1-in. LCD models 106
1150 Backup battery for 15.0-in. LCD models 108
1160 Speaker assembly ........110
1170 Keyboard bezel for 14.1-in. LCD models 112
1180 PC Card slot assembly for 14.1-in. LCD
models .............114
1190 PC Card slot assembly for 15.0-in. LCD
models .............116
1200 LCD assembly for 14.1-in. LCD models 118
1210 LCD assembly for 15.0-in. LCD models 123
1220 CPU ............ 128
1230 Ultrabay Slim guide rail assembly for 14.1-in.
LCD models ........... 129
1240 Ultrabay Slim guide rail assembly for 15.0-in.
LCD models ........... 131
1250 VGA and Ultrabay Slim device eject button
cable ............. 134
1260 System board and base cover for 14.1-in.
LCD models ........... 136
1270 System board, interposer card, and base
cover for 15.0-in. LCD models ...... 145
2010 LCD front bezel for 14.1-in. LCD models 153
2020 LCD front bezel for 15.0-in. LCD models 155
2030 Inverter card for 14.1-in. LCD models ... 157
2040 Inverter card for 15.0-in. LCD models ... 159
2050 Wireless antenna assemblies, LCD panel,
LCD cable assembly, hinges, and LCD cover for
14.1-in. LCD models ......... 160
2060 Wireless antenna assemblies, LCD panel,
LCD cable assembly, hinges, and LCD cover for
15.0-in. LCD models ......... 175
3010 ThinkPad Dock II PCI cover...... 182
3020 ThinkPad Dock II top cover ...... 183
Locations .............. 186
Front view ............ 186
Rear view ............. 188
Bottom view ............ 189
Parts list .............. 190
Overall ............. 191
iv T40/T40p, T41/T41p, T42/T42p

14.1-in. LCD FRUs .......... 220
15.0-in. LCD FRUs .......... 230
Keyboard ............. 235
Recovery CDs ........... 237
Miscellaneous parts .......... 243
AC adapters ............ 246
Optional FRUs ........... 247
Common parts list .......... 248
Notices .............. 250
Trademarks ............. 252
Contents v

vi T40/T40p, T41/T41p, T42/T42p

About this manual
This manual contains service and reference information for
ThinkPad
® T40/T40p, T41/T41p, T42/T42p series
(MT2373, 2374, 2375, 2376, 2378, 2379, 2668, 2669,
2678, 2679, 2686, and 2687), and ThinkPad Dock II
(MT2877) 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 aThinkPad product, be sure to
review the safety information under “Safety notices:
multilingual translations” on page 4, “Safety
information” on page 16, and “Laser compliance
statement” on page 22.
©Lenovo 2005. Portions ©IBM Corp. 2005. 1

2T40/T40p, T41/T41p, T42/T42p

Introduction
Important service information
Important
BIOS and device driver fixes are
customer-installable. The BIOS and device drivers
are posted on the customer support site
http://www.lenovo.com/think/ support
Advise customers to contact the Customer Support
Center at 800-426-7378 if they need assistance in
obtaining or installing any diskette fixes.
Customers in Canada should call the Customer
Support Center 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 expense
for replacing and servicing FRUs:
vIf you are instructed to replace aFRU but the
replacement does not correct the problem, reinstall
the original FRU before you continue.
vSome computers have both aprocessor 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 adevice 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.
©Lenovo 2005. Portions ©IBM Corp. 2005. 3

Strategy for replacing ahard disk drive
Always try to run alow-level format before replacing ahard
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 whether 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 Read and write
2.0 MB Read and write
4.0 MB Not compatible
Safety notices: multilingual translations
In this manual, safety notices appear in English with a
page number reference to the appropriate multilingual,
translated safety notice found in this section.
The following safety notices are provided in English,
French, German, Hebrew, Italian, and Spanish.
Important service information
4T40/T40p, T41/T41p, T42/T42p

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 éstata
effettuata la sostituzione di una FRU, accertarsi che
tutte le viti, le molle etutte le altri parti di piccole
dimensioni siano nella corretta posizione enon siano
sparse all’interno dell’elaboratore. Verificare ciò
scuotendo l’elaboratore eprestando attenzione ad
eventuali rumori; eventuali parti opezzetti 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 yno
se encuentran sueltas dentro del sistema.
Compruébelo agitando el sistema yescuchando los
posibles ruidos que provocarían. Las piezas metálicas
pueden causar cortocircuitos eléctricos.
Safety notices
Introduction 5

Safety notice 2
DANGER
Some standby batteries contain asmall amount of
nickel and cadmium. Do not disassemble astandby
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 àl’eau.
Ne les mettez pas en court-circuit. Pour les mettre
au rebut, conformez-vous àla 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 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)
Safety notices
6T40/T40p, T41/T41p, T42/T42p

(continuation of safety notice 2)
Alcune batterie di riserva contengono una piccola
quantità di nichel ecadmio. Non smontarle,
ricaricarle, gettarle nel fuoco onell’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) ola batteria di
supporto, utilizzare soltanto itipi inseriti
nell’appropriato Catalogo parti. L’impiego di una
batteria non adatta potrebbe determinare l’incendio
ol’esplosione della batteria stessa.
Algunas baterías de reserva contienen una
pequeña cantidad de níquel ycadmio. No las
desmonte, ni recargue, ni las eche al fuego oal
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 oexplosión de la misma.
Safety notices
Introduction 7

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 démontez pas,
ne l’exposez ni au feu ni àl’eau. Ne la mettez pas
en court-circuit. Pour la mettre au rebut,
conformez-vous àla 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.
(continued)
Safety notices
8T40/T40p, T41/T41p, T42/T42p

(continuation of safety notice 3)
La batteria contiene piccole quantità di nichel. Non
smontarla, gettarla nel fuoco onell’acqua né
cortocircuitarla. Smaltirla secondo la normativa in
vigore (DPR 915/82, successive disposizioni e
disposizioni locali). Quando si sostituisce la
batteria, utilizzare soltanto itipi inseriti
nell’appropriato Catalogo parti. L’impiego di una
batteria non adatta potrebbe determinare l’incendio
ol’esplosione della batteria stessa.
Las baterías contienen pequeñas cantidades de
níquel. No las desmonte, ni recargue, ni las eche al
fuego oal 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 oexplosión
de la misma.
Safety notices
Introduction 9

Safety notice 4
DANGER
The lithium battery can cause afire, an explosion,
or asevere 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 àune temperature supérieure à
100°C, ne la faites pas brûler et n’en exposez pas
le contenu àl’eau. Mettez la pile au rebut
conformément àla 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 Cerhitzt
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.
(continued)
Safety notices
10 T40/T40p, T41/T41p, T42/T42p

(continuation of safety notice 4)
La batteria di supporto euna batteria al litio epuo
incendiarsi, esplodere oprocurare gravi ustioni.
Evitare di ricaricarla, smontarne il connettore
polarizzato, smontarla, riscaldarla ad una
temperatura superiore ai 100 gradi centigradi,
incendiarla ogettarla in acqua. Smaltirla secondo
la normativa in vigore (DPR 915/82, successive
disposizioni edisposizioni locali). L’impiego di una
batteria non adatta potrebbe determinare l’incendio
ol’esplosione della batteria stessa.
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.
Safety notices
Introduction 11

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 àcristaux 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 ole mani, lavare immediatamente le parti
interessate con acqua corrente per almeno 15 minuti;
poi consultare un medico se isintomi dovessero
permanere.
Si la LCD se rompe yel fluido de su interior entra en
contacto con sus ojos osus 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.
Safety notices
12 T40/T40p, T41/T41p, T42/T42p

Safety notice 6
DANGER
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 notices
Introduction 13

Safety notice 7
DANGER
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 àla 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 abasso
voltaggio, una batteria in corto circuito oamassa
può fornire corrente sufficiente da bruciare
materiali combustibili oprovocare ustioni ai tecnici
di manutenzione.
Aunque las baterías principales tienen un voltaje
bajo, una batería cortocircuitada ocon contacto a
tierra puede producir la corriente suficiente como
para quemar material combustible oprovocar
quemaduras en el personal.
Safety notices
14 T40/T40p, T41/T41p, T42/T42p