HP ThinkPad T43 Owner's manual

ThinkPad Computer
Hardware Maintenance Manual
July 2005
This manual supports:
ThinkPad T43/T43p
ThinkPad Dock II (MT 2877)
(MT 2668/2669/2678/2679/ )
2686/2687
All manuals and user guides at all-guides.com
all-guides.com

Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 244.
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).
All manuals and user guides at all-guides.com

Contents
About this manual ...........1
Introduction .............3
Important service information .........3
Strategy for replacing FRUs .........3
Strategy for replacing ahard disk drive .....4
How to use error messages ........4
Strategy for replacing FRUs for CTO, CMV, and GAV 4
Product definition ...........4
FRU identification for CTO, CMV, and GAV products 5
Important information about replacing RoHS compliant
FRUs ...............7
Diskette compatibility matrix .........8
Safety notices: multilingual translations ......8
Safety information............20
General safety ............20
Electrical safety ...........21
Safety inspection guide .........23
Handling devices that are sensitive to electrostatic
discharge ............24
Grounding requirements .........25
Laser compliance statement.........26
General descriptions ..........29
Read this first .............29
What to do first ...........29
Related service information .........31
Service Web site ...........31
Restoring the pre-installed system ......31
Passwords .............32
Power management ..........35
Checkout guide ............38
Testing the computer ..........38
Detecting system information with PC-Doctor...41
Power system checkout .........42
ThinkPad T43/T43p Series .........45
Product overview ............47
Specifications ............47
Status indicators ...........50
FRU tests .............53
Fn key combinations ..........55
Symptom-to-FRU index ..........58
Numeric error codes ..........58
Error messages ...........63
Beep symptoms ...........64
No-beep symptoms ..........64
LCD-related symptoms .........65
Intermittent problems ..........66
Undetermined problems .........66
©Lenovo 2005. Portions ©IBM Corp. 2005. iii
All manuals and user guides at all-guides.com

FRU replacement notices .........67
Screw notices ............67
Retaining serial numbers.........68
Removing and replacing aFRU........71
1010 Battery pack (14.1-in. LCD models) ....72
1020 Battery pack (15.0-in. LCD models) ....74
1030 Ultrabay Slim device ........75
1040 Hard disk drive ..........76
1050 DIMM (optional) .........78
1060 Keyboard ...........80
1070 DIMM (standard) .........85
1080 Modem daughter card (MDC-2) .....86
1090 Bluetooth/Modem daughter card (BMDC-3) 88
1100 Palm rest or Palm rest with fingerprint reader
(14.1-in. LCD models).........90
1110 Keyboard bezel or Keyboard bezel with
fingerprint reader (15.0-in. LCD models) ...93
1120 Mini PCI adapter .........99
1130 Fan assembly .......... 101
1140 Backup battery ......... 105
1150 Speaker assembly ........ 107
1160 Keyboard bezel (14.1-in. LCD models) 109
1170 PC Card/ExpressCard slots (14.1-in. LCD
models) ............ 111
1180 PC Card/ExpressCard slots (15.0-in. LCD
models) ............113
1190 LCD assembly (14.1-in. LCD models) ...115
1200 LCD assembly (15.0-in. LCD models) ... 120
1210 CPU ............ 125
1220 Ultrabay Slim guide rail assembly (14.1-in.
LCD models) ........... 126
1230 Ultrabay Slim guide rail assembly (15.0-in.
LCD models) ........... 128
1240 VGA and Ultrabay Slim device eject button
cable ............. 131
1250 System board and base cover (14.1-in. LCD
models) ............ 133
1260 System board, interposer card, and base
cover (15.0-in. LCD models) ...... 140
2010 LCD front bezel (14.1-in. LCD models) 148
2020 LCD front bezel (15.0-in. LCD models) 150
2030 Inverter card (14.1-in. LCD models) ... 152
2040 Inverter card (15.0-in. LCD models) ... 154
2050 Wireless antenna assemblies, LCD panel,
LCD cable assembly, hinges, and LCD cover
(14.1-in. LCD models) ........ 155
2060 Wireless antenna assemblies, LCD panel,
LCD cable assembly, hinges, and LCD cover
(15.0-in. LCD models) ........ 169
3010 ThinkPad Dock II PCI cover...... 176
3020 ThinkPad Dock II top cover ...... 177
Locations .............. 180
Front view ............ 180
iv MT 2668/2669/2678/2679/2686/2687
All manuals and user guides at all-guides.com

Rear view ............. 182
Bottom view ............ 183
Parts list .............. 184
Overall ............. 185
14.1-in. LCD FRUs .......... 215
15.0-in. LCD FRUs .......... 222
Keyboard ............. 231
Recovery CDs ........... 233
Miscellaneous parts .......... 236
AC adapters ............ 239
Optional FRUs ........... 240
Common parts list .......... 241
Notices .............. 244
Trademarks ............. 246
Contents v
All manuals and user guides at all-guides.com

vi MT 2668/2669/2678/2679/2686/2687
All manuals and user guides at all-guides.com
all-guides.com

About this manual
This manual contains service and reference information for
ThinkPad®T43/T43p series (MT 2668, 2669, 2678, 2679,
2686, and 2687), and ThinkPad Dock II (MT 2877)
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 8, “Safety
information” on page 20, and “Laser compliance
statement” on page 26.
©Lenovo 2005. Portions ©IBM Corp. 2005. 1
All manuals and user guides at all-guides.com

2MT 2668/2669/2678/2679/2686/2687
All manuals and user guides at all-guides.com

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
All manuals and user guides at all-guides.com

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.
Strategy for replacing FRUs for CTO,
CMV, and GAV
Product definition
Dynamic Configure To Order (CTO)
This provides the ability for acustomer to configure an
IBM
® solution from an eSite, and have this configuration
sent to fulfillment, where it is built and shipped directly to
the customer. The machine label, PC Entitlement
Warehouse (PEW), eSupport, and the HMM will load these
products as the 4-digit MT and 3-digit model, where model
=“CTO” (Example: 1829-CTO).
Custom Model Variant (CMV)
This is aunique configuration that has been negotiated
between IBM and the customer. Aunique 4-digit MT and
3-digit model is provided to the customer to place orders
(Example: 1829-W15). ACMV is aspecial bid offering.
Therefore, it is NOT generally announced.
vThe MTM portion of the machine label is the 4-digit MT
and 3-digit model, where model =“CTO” (Example:
1829-CTO). The PRODUCT ID portion of the machine
label is the 4-digit MT and 3-digit CMV model (Example:
1829-W15).
vThe PEW record is the 4-digit MT and 3-digit model,
where model =“CTO” (Example: 1829-CTO).
veSupport will show both the CTO and CMV machine
type models (Example: 1829-CTO and 1829-W15 will be
found on the eSupport site.)
Important service information
4MT 2668/2669/2678/2679/2686/2687
All manuals and user guides at all-guides.com

vThe HMM will have the 4-digit MT and 3-digit CTO
model only (Example: 1829-CTO). Again, CMVs are
custom models and are not found in the HMM.
General Announce Variant (GAV)
This is astandard model (fixed configuration). GAVs are
announced and offered to all customers. The MTM portion
of the machine label is a4-digit MT and 3-digit model,
where model =a“fixed part number”, not “CTO” (Example:
1829-F1U). Also, PEW, eSupport, and the HMM will list
these products under the same fixed model number.
FRU identification for CTO, CMV, and
GAV products
There are three information resources to identify which
FRUs are used to support CTO, CMV, and GAV products.
These sources are PEW, eSupport, and the HMM.
Using PEW
vPEW is the primary source for identifying FRU part
numbers and FRU descriptions for the key commodities
for CTO, CMV and GAV products at aMT -serial
number level. An example of key commodities are hard
disk drives, system boards, microprocessors, Liquid
Crystal Displays (LCDs), and memory.
vRemember, All CTO and CMV products are loaded in
PEW under the 4-digit MT and 3-digit model, where
model =“CTO” (Example: 1829-CTO). GAVs are loaded
in PEW under the 4-digit MT and 3-digit model, where
model =a“fixed part number”, not “CTO” (Example:
1829-F1U).
vPEW can be accessed at the following Web site:
http://w3-3.ibm.com/pc/entitle
Click on MACHINE LOOKUP, followed by WARRANTY
INFORMATION. Input the MT and the Serial number
and the list of key commodities will be returned in the
PEW record under COMPONENT INFORMATION.
vBusiness Partners using Eclaim will access PEW when
performing Entitlement Lookup. Business Partners will
enter Loc ID, MT and Serial, and the key commodities
will be returned in the Eclaim record under SYSTEM
DETAILS.
vAuthorized IBM Business Partners can access Eclaim at
the following Web site: https://wca.eclaim.com
Using eSupport
For Key Commodities (Examples -hard disk drive,
system board, microprocessor, LCD, and memory)
Important service information
Introduction 5
All manuals and user guides at all-guides.com
all-guides.com

veSupport can be used to view the list of key
commodities built in aparticular machine serial (this is
the same record found in PEW).
veSupport can be accessed at the following Web site:
http://www.lenovo.com/think/ support
vTo view the key commodities, click on PARTS
INFORMATION, then PARTS LOOKUP. Type in the
model type and serial number. The key commodities will
be returned in the eSupport record under PARTS
SHIPPED WITH YOUR SYSTEM.
For the Remaining FRUs (the complete list of FRUs at
the MT Model level)
veSupport can be used to view the complete list of FRUs
for amachine type and model.
vTo view the complete list of FRUs, type in the machine
type and model (Example: 1829-CTO) under QUICK
PATH. Under “View by Document Type” select PARTS
INFORMATION. Under “Filter by Category” select
SERVICE PARTS. Under “Parts Information by Date”
select SYSTEM SERVICE PARTS. The list of service
parts by description, with applicable machine type model
and FRU will be displayed.
Using the HMM
Use the HMM as aback-up to PEW and eSupport to view
the complete list of FRUs at the MT Model level.
Important service information
6MT 2668/2669/2678/2679/2686/2687
All manuals and user guides at all-guides.com

Important information about replacing
RoHS compliant FRUs
RoHS, The Restriction of Hazardous Substances in
Electrical and Electronic Equipment Directive
(2002/95/EC) is aEuropean Union legal requirement
affecting the global electronics industry. RoHS
requirements must be implemented on Lenovo
products placed on the market after June 2006.
Products on the market before June 2006 are not
required to have RoHS compliant parts. So, if the
original FRU parts are non compliant, replacement
parts can also be non compliant. In all cases if the
original FRU parts are RoHS compliant the
replacement part must also be RoHS compliant.
Lenovo plans to transition to RoHS compliance well before
the implementation date and expects its suppliers to be
ready to support Lenovo's requirements and schedule.
Products sold in 2005, will contain some RoHS compliant
FRUs. The following statement pertains to these products
and any product Lenovo produces containing RoHS
compliant FRUs.
RoHS compliant FRUs have unique FRU part numbers.
Before or after the RoHS implementation date, failed RoHS
compliant parts must always be replaced using RoHS
compliant FRUs, so only the FRUs identified as compliant
in the system HMM or direct substitutions for those FRUs
may be used.
Important service information
Introduction 7
All manuals and user guides at all-guides.com

Products marketed before
June 2006
Products marketed after June
2006
Current or
original part
Replacement
FRU
Current or
original part
Replacement
FRU
Non-RoHS Can be
Non-RoHS
Must be RoHS Must be RoHS
Non-RoHS Can be RoHS
Non-RoHS Can sub to
RoHS
RoHS Must be RoHS
Note: Adirect substitution is apart with adifferent FRU
part number that is automatically shipped by the
distribution center at the time of the order.
Related web URLs are:
vIBM Information for Suppliers website:
http://www-03.ibm.com/procurement/proweb.nsf/
ContentDocsByTitle/United+States~Information+for
+suppliers
vRoHS Directive:
http://europa.eu.int/eur-lex/pri/en/oj/dat/2003/
l_037/l_03720030213en00190023.pdf
vCalifornia Senate Bills 20, 50:
http://www.ciwmb.ca.gov/HHW/Events/AnnualConf/
2004/Presentation/MPaparian.pdf
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
8MT 2668/2669/2678/2679/2686/2687
All manuals and user guides at all-guides.com

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 9
All manuals and user guides at all-guides.com

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
10 MT 2668/2669/2678/2679/2686/2687
All manuals and user guides at all-guides.com
all-guides.com

(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 11
All manuals and user guides at all-guides.com

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
12 MT 2668/2669/2678/2679/2686/2687
All manuals and user guides at all-guides.com

(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 13
All manuals and user guides at all-guides.com

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
14 MT 2668/2669/2678/2679/2686/2687
All manuals and user guides at all-guides.com