IBM THINKPAD R30, THINKPAD R31 SM Service Manual

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ThinkPad R30/R31 Hardware
Maintenance Manual

Before using this information and the product it supports,
be sure to read the general information under
“Introduction” on page 1, and “Notices” on page 228.

First Edition (September 2002)

The following paragraph does not apply to the United
Kingdom or any country where such provisions are
inconsistent with local law:

INTERNATIONAL BUSINESS MACHINES CORPORATION
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 disclaimers or express or implied warranties in
certain transactions; therefore, 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
improvements or changes in the products or the programs
described in this publication at any time.

Requests for technical information about IBM products
should be made to your IBM Authorized Dealer or your
IBM Marketing Representative.

© Copyright International Business Machines
Corporation 2002. All rights reserved. NotetoUS

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.

Preface

About this manual

This manual contains service and reference information for
IBM ThinkPad R30/R31 products. Use this manual along
with the advanced diagnostic tests to troubleshoot
problems effectively.

The manual is divided into sections as follows:

v The Introduction section provides general information,

guidelines, and safety information required to service
computers.

v The product-specific section includes service, reference,

and product-specific parts information.

Important

This manual is intended for trained servicers who
are familiar with ThinkPad products. Use this
manual along with the advanced diagnostic tests to
troubleshoot problems effectively. Before servicing
an IBM ThinkPad product, be sure to review the
safety information under “Safety Notices
(Multi-lingual Translations)” on page 3,“Safety
Information” on page 13, and “Laser Compliance
Statement” on page 17.

iii

iv ThinkPad R30/R31 HMM

Contents

Preface ...............iii

ThinkPad R30/R31 Hardware Maintenance Manual 1

Introduction ..............1

ImportantServiceInformation........1

Drive and Diskette Compatibility Matrix .....2

Safety Notices (Multi-lingual Translations) ....3

SafetyInformation...........13

Laser Compliance Statement .......17

General Descriptions ...........20

Read this first .............21

What to do first ...........21

FRU replacement notices .........23

LCD replacement notice .........23

Screwnotices............23

System board/LCD/Inverter replacement notice 24

Relatedserviceinformation.........26

Power button as reset switch .......26

Running a low-level format ........26

ServiceWebsite...........26

Passwords .............26

Power management features .......28

Fn key combinations ..........30

Product recovery program ........30

FlashBIOS.............33

Checkout guide ............34

Testing the computer ..........34

Relatedserviceinformation........35

Power systems checkout.........36

Symptom-to-FRU Index ..........40

Numeric Error Codes and Messages .....40

Beep Symptoms ...........43

LCD-Related Symptoms .........44

Keyboard/TrackPoint-Related Symptoms ....45

Indicator-Related Symptoms........45

Power-Related Symptoms ........45

Memory-Related Symptom ........46

Audio-Related Symptoms ........46

PC Card (PCMCIA)-Related Symptoms ....46

Power Management-Related Symptoms ....47

Peripheral-Device-Related Symptoms .....47

Modem-Related Symptom ........48

Operating System-Related Symptom .....48

IntermittentProblems..........48

Undetermined Problems .........49

ThinkPad R30 .............50

Product overview ...........51

FRU removals and replacements ......56

Locations .............84

Partslist.............87

v

ThinkPad R31 Part I ..........100

Product overview ..........102

FRU removals and replacements ......107

Locations .............136

Partslist.............139

ThinkPad R31 Part II ..........156

Product overview ..........157

FRU removals and replacements ......162

Locations .............191

Partslist.............194

ThinkPad R31 Part III ..........208

Product overview ..........209

Partslist.............214

Notices..............228

Trademarks .............229

vi ThinkPad R30/R31 HMM

ThinkPad R30/R31 Hardware Maintenance Manual

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 IBM
at 800-772-2227 if they need assistance in obtaining
or installing any diskette fixes.

Customers in Canada should call IBM
at 800-565-3344 for assistance or download
information.

HelpCenter

®

HelpCenter

FRU Replacement Strategy

Before Replacing Parts

Ensure that all diskette fixes are installed prior to
replacing any FRUs listed in this manual.

Use the following strategy to prevent unnecessary FRU
replacement and service expense:

v If you are instructed to replace a FRU and that does

not correct the problem, reinstall the original FRU
before you continue.

v 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 replaced does not correct the problem, reinstall
the original board, then replace the other (processor or
system) board.

v If an adapter or device consists of more than one FRU,

an error code may be caused by any of the FRUs.
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.

v R31 : When CPU is replaced, the heat sink should be

replaced with new one also.

®

®

1

Attention: A 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) and verify that the settings are
in place when service is complete.

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. Data or programs can be over-written if you
select an incorrect drive.

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. The cause of the first
error code can result in false error codes being displayed.
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 will represent
different information for SCSI errors versus non-SCSI
errors.

All SCSI devices are set to a different SCSI ID. Duplicate
SCSI ID settings can generate a false error message. Use
the SCSI ID to determine whether the error message is
coming from an internal or an external device.

Drive and Diskette Compatibility Matrix

The following table provides identification information for

3.5-inch drives.

Diskette Drive Identifying Mark

3.5-Inch - 1.44MB 1.44 on the eject button

3.5-Inch - 2.88MB 2.88 on the eject button

The following table provides compatibility information for

3.5-inch diskettes and 3.5-inch diskette drives.

2 ThinkPad R30/R31 HMM

Diskette Capacity 1.44MB Drive 2.88MB Drive

1.0MB Read/Write Read/Write

2.0MB Read/Write Read/Write

4.0MB Not Compatible Read/Write

Safety Notices (Multi-lingual 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.

MT 2656, 2657, 2676

3

Safety Notice 1

Before 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 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.

4 ThinkPad R30/R31 HMM

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 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 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.

MT 2656, 2657, 2676 5

(Continued)

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 utilizaciónde

una batería no apropiada puede provocar la ignición

o explosión de la misma.

6 ThinkPad R30/R31 HMM

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 ni à l’eau. Ne la mettez pas
en court-circuit. Pour la mettre au rebut,
conformez-vous à la 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.

La batteria contiene piccole quantità di 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.

MT 2656, 2657, 2676 7

Safety Notice 4

The lithium battery can cause a fire, explosion, or

severe 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 à une temperature supérieure à

100°C, ne la faites pas brûleretn’en exposez pas

le contenu à l’eau. Mettez la pile au rebut

conformément à la 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 C erhitzt

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.

La batteria di supporto e una batteria al litio e puo

incendiarsi, esplodere o procurare gravi ustioni.

Evitare di ricaricarla, smontarne il connettore

polarizzato, smontarla, riscaldarla ad una

temperatura superiore ai 100 gradi centigradi,

incendiarla o gettarla in acqua. Smaltirla secondo la

normativa in vigore (DPR 915/82, successive

disposizioni e disposizioni locali). L’impiego di una

batteria non adatta potrebbe determinare l’incendio

ol’esplosione della batteria stessa.

8 ThinkPad R30/R31 HMM

(Continued)

La bateria de repuesto es una bateria 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.

MT 2656, 2657, 2676 9

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 à cristaux 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 aprèsle

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 unsachgemäβ 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 anschlieβend 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 o le mani, lavare immediatamente le parti

interessate con acqua corrente per almeno 15

minuti; poi consultare un medico se i sintomi

dovessero permanere.

Si la LCD se rompe y el fluido de su interior entra

en contacto con sus ojos o sus manos, lave

inmediatamente las áreas afectadas con agua

durante 15 minutos como mínimo. Obtenga atención

medica si se presenta algúnsíntoma del fluido

despues de lavarse.

10 ThinkPad R30/R31 HMM

Safety Notice 6

To avoid shock, do not remove the plastic cover that
surrounds the lower portion 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 Notice 7

Though main batteries have low voltage, a shorted
or grounded battery can produce enough current to
burn combustible materials or personnel.

Bien que le voltage des batteries principales soit
peu élevé, le court-circuit ou la mise à la 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 Kurzschluβ oder Erdung
genug Strom abgeben, um brennbare Materialien zu
entzünden oder Verletzungen bei Personen
hervorzurufen.

Sebbene le batterie di alimentazione siano a basso
voltaggio, una batteria in corto circuito o a massa
può fornire corrente sufficiente da bruciare materiali
combustibili o provocare ustioni ai tecnici di
manutenzione.

Aunque las baterías principales tienen un voltaje
bajo, una batería cortocircuitada o con contacto a
tierra puede producir la corriente suficiente como
para quemar material combustible o provocar
quemaduras en el personal.

MT 2656, 2657, 2676 11

Safety Notice 8

Before removing any FRU, power-off the computer,

unplug all power cords from electrical outlets,

remove the battery pack, then disconnect any

interconnecting cables.

Avant de retirer une unité remplaçable en clientèle,

mettez le système hors tension, débranchez tous

les cordons d’alimentation des socles de prise de

courant, retirez la batterie et déconnectez tous les

cordons d’interface.

Die Stromzufuhr muβ abgeschaltet, alle Stromkabel

aus der Steckdose gezogen, der Akku entfernt und

alle Verbindungskabel abgenommen sein, bevor

eine FRU entfernt wird.

Prima di rimuovere qualsiasi FRU, spegnere il

sistema, scollegare dalle prese elettriche tutti i cavi

di alimentazione, rimuovere la batteria e poi

scollegare i cavi di interconnessione.

Antes de quitar una FRU, apague el sistema,

desenchufe todos los cables de las tomas de

corriente eléctrica, quite la batería y, a continuación,

desconecte cualquier cable de conexión entre

dispositivos.

12 ThinkPad R30/R31 HMM

Safety Information

The following section contains the safety information that
you need to be familiar with before servicing an IBM
mobile computer.

General Safety

Follow these rules to ensure general safety:

v Observe good housekeeping in the area of the

machines during and after maintenance.

v When lifting any heavy object:

1. Ensure you can stand safety without slipping.

2. Distribute the weight of the object equally between
your feet.

3. Use a slow lifting force. Never move suddenly or
twist when you attempt to lift.

4. Lift by standing or by pushing up with your leg
muscles; this action removes the strain from the
muscles in your back. Do not attempt to lift any

objects that weigh more than 16 kg (35 lb) or objects
that you think are too heavy for you.

v Do not perform any action that causes hazards to the

customer, or that makes the equipment unsafe.

v Before you start the machine, ensure that other service

representatives and the customer’s personnel are not in
a hazardous position.

v Place removed covers and other parts in a safe place,

away from all personnel, while you are servicing the
machine.

v Keep your tool case away from walk areas so that other

people will not trip over it.

v Do not wear loose clothing that can be trapped in the

moving parts of a machine. Ensure that your sleeves
are fastened or rolled up above your elbows. If your hair
is long, fasten it.

v Insert the ends of your necktie or scarf inside clothing or

fasten it with a nonconductive clip, approximately 8
centimeters (3 inches) from the end.

v Do not wear jewelry, chains, metal-frame eyeglasses, or

metal fasteners for your clothing.
Attention: Metal objects are good electrical

conductors.

v Wear safety glasses when you are: hammering, drilling

soldering, cutting wire, attaching springs, using solvents,
or working in any other conditions that might be
hazardous to your eyes.

v After service, reinstall all safety shields, guards, labels,

and ground wires. Replace any safety device that is
worn or defective.

MT 2656, 2657, 2676

13

v Reinstall all covers correctly before returning the

machine to the customer.

Electrical Safety

Observe the following rules when working on electrical
equipment.

Important

Use only approved tools and test equipment. Some
hand tools have handles covered with a soft
material that does not insulate you when working
with live electrical currents. Many customers have,
near their equipment, rubber floor mats that contain
small conductive fibers to decrease electrostatic
discharges. Do not use this type of mat to protect
yourself from electrical shock.

v Find the room emergency power-off (EPO) switch,

disconnecting switch, or electrical outlet. If an electrical
accident occurs, you can then operate the switch or
unplug the power cord quickly.

v Do not work alone under hazardous conditions or near

equipment that has hazardous voltages.

v Disconnect all power before:

– Performing a mechanical inspection

– Working near power supplies

– Removing or installing main units

v Before you start to work on the machine, unplug the

power cord. If you cannot unplug it, ask the customer to
power-off the wall box that supplies power to the
machine and to lock the wall box in the off position.

v If you need to work on a machine that has exposed

electrical circuits, observe the following precautions:

– Ensure that another person, familiar with the

power-off controls, is near you.
Attention: Another person must be there to switch

off the power, if necessary.

– Use only one hand when working with powered-on

electrical equipment; keep the other hand in your
pocket or behind your back.

Attention: There must be a complete circuit to
cause electrical shock. By observing the above rule,
you may prevent a current from passing through your
body.

– When using testers, set the controls correctly and

use the approved probe leads and accessories for
that tester.

14 ThinkPad R30/R31 HMM

– Stand on suitable rubber mats (obtained locally, if

necessary) to insulate you from grounds such as
metal floor strips and machine frames.

Observe the special safety precautions when you work
with very high voltages; these instructions are in the
safety sections of maintenance information. Use
extreme care when measuring high voltages.

v Regularly inspect and maintain your electrical hand tools

for safe operational condition.

v Do not use worn or broken tools and testers.

v Never assume that power has been disconnected from

a circuit. First, check that it has been powered-off.

v Always look carefully for possible hazards in your work

area. Examples of these hazards are moist floors,
nongrounded power extension cables, power surges,
and missing safety grounds.

v Do not touch live electrical circuits with the reflective

surface of a plastic dental mirror. The surface is
conductive; such touching can cause personal injury and
machine damage.

v Do not service the following parts with the power on

when they are removed from their normal operating
places in a machine:

– Power supply units

– Pumps

– Blowers and fans

– Motor generators

and similar units. (This practice ensures correct
grounding of the units.)

v If an electrical accident occurs:

– Use caution; do not become a victim yourself.
– Switch off power.
– Send another person to get medical aid.

Safety Inspection Guide

The intent of this inspection guide is to assist you in
identifying potentially unsafe conditions on these products.
Each machine, as it was designed and built, had required
safety items installed to protect users and service
personnel from injury. This guide addresses only those
items. However, good judgment should be used to identify
potential safety hazards due to attachment of non-IBM
features or options not covered by this inspection guide.

If any unsafe conditions are present, you must determine
how serious the apparent hazard could be and whether

MT 2656, 2657, 2676

15

you can continue without first correcting the problem.
Consider these conditions and the safety hazards they
present:

v Electrical hazards, especially primary power (primary

voltage on the frame can cause serious or fatal
electrical shock).

v Explosive hazards, such as a damaged CRT face or

bulging capacitor.

v Mechanical hazards, such as loose or missing

hardware.

The guide consists of a series of steps presented in a
checklist. Begin the checks with the power off, and the
power cord disconnected.

Checklist:

1. Check exterior covers for damage (loose, broken, or
sharp edges).

2. Power-off the computer. Disconnect the power cord.

3. Check the power cord for:

a. A third-wire ground connector in good condition.

Use a meter to measure third-wire ground
continuity for 0.1 ohm or less between the external
ground pin and frame ground.

b. The power cord should be the appropriate type as

specified in the parts listings.

c. Insulation must not be frayed or worn.

4. Remove the cover.

5. Check for any obvious non-IBM alterations. Use good
judgment as to the safety of any non-IBM alterations.

6. Check inside the unit for any obvious unsafe
conditions, such as metal filings, contamination, water
or other liquids, or signs of fire or smoke damage.

7. Check for worn, frayed, or pinched cables.

8. Check that the power-supply cover fasteners (screws
or rivets) have not been removed or tampered with.

Handling Electrostatic Discharge-Sensitive Devices

Any computer part containing transistors or integrated
circuits ( ICs) should be considered sensitive to
electrostatic discharge (ESD). ESD damage can occur
when there is a difference in charge between objects.
Protect against ESD damage by equalizing the charge so
that the machine, the part, the work mat, and the person
handling the part are all at the same charge.

16 ThinkPad R30/R31 HMM

Notes:

1. Use product-specific ESD procedures when they
exceed the requirements noted here.

2. Make sure that the ESD protective devices you use
have been certified (ISO 9000) as fully effective.

When handling ESD-sensitive parts:

v Keep the parts in protective packages until they are

inserted into the product.

v Avoid contact with other people.

v Wear a grounded wrist strap against your skin to

eliminate static on your body.

v Prevent the part from touching your clothing. Most

clothing is insulative and retains a charge even when
you are wearing a wrist strap.

v Use the black side of a grounded work mat to provide a

static-free work surface. The mat is especially useful
when handling ESD-sensitive devices.

v Select a grounding system, such as those listed below,

to provide protection that meets the specific service
requirement.

Note: The use of a grounding system is desirable but

not required to protect against ESD damage.

– Attach the ESD ground clip to any frame ground,

ground braid, or green-wire ground.

– Use an ESD common ground or reference point

when working on a double-insulated or
battery-operated system.

– You can use coax or connector-outside shells on

these systems.

– Use the round ground-prong of the AC plug on

AC-operated computers.

Grounding Requirements

Electrical grounding of the computer is required for
operator safety and correct system function. Proper
grounding of the electrical outlet can be verified by a
certified electrician.

Laser Compliance Statement

Some IBM Personal Computer models are equipped from
the factory with a optical drive, such as CD-ROM,
DVD-ROM, CD-R/W and DVD/CD-RW combo drive.
Optical drives are also sold separately as options. The
optical drive is a laser product. The optical drive is certified
in the U.S. to conform to the requirements of the
Department of Health and Human Services 21 Code of
Federal Regulations (DHHS 21 CFR) Subchapter J for

MT 2656, 2657, 2676

17

Class 1 laser products. Elsewhere, the drive is certified to
conform to the requirements of the International
Electrotechnical Commission (IEC) 825 and CENELEC EN
60 825 for Class 1 laser products.

When an optical drive is installed, note the following.

CAUTION:
Use of controls or adjustments or performance of
procedures other than those specified herein might
result in hazardous radiation exposure.

O uso de controles, ajustes ou desempenho de
procedimentos diferentes daqueles aqui especificados
pode resultar em perigosa exposição à radiação.

Pour éviter tout risque d’exposition au rayon laser,
respectez les consignes de réglage et d’utilisation des
commandes, ainsi que les procédures décrites.

Werden Steuer- und Einstellelemente anders als hier
festgesetzt verwendet, kann gefährliche
Laserstrahlung auftreten.

L’utilizzo di controlli, regolazioni o l’esecuzione di
procedure diverse da quelle specificate possono
provocare l’esposizione a

El uso de controles o ajustes o la ejecución de
procedimientos distintos de los aquí especificados
puede provocar la exposición a radiaciones
peligrosas.

18 ThinkPad R30/R31 HMM

Opening the CD-ROM drive could result in exposure to
hazardous laser radiation. There are no serviceable parts
inside the CD-ROM drive. Do not open.

Some CD-ROM drives contain an embedded Class 3A or
Class 3B laser diode. Note the following.

DANGER

Laser radiation when open. Do not stare into the
beam, do not view directly with optical instruments,
and avoid direct exposure to the beam.

Radiação por raio laser ao abrir. Não olhe fixo no
feixe de luz, não olhe diretamente por meio de
instrumentos óticos e evite exposição direta com o
feixe de luz.

Rayonnement laser si carter ouvert. Évitez de fixer
le faisceau, de le regarder directement avec des
instruments optiques, ou de vous exposer au
rayon.

Laserstrahlung bei geöffnetem Gerät. Nicht direkt
oder über optische Instrumente in den Laserstrahl
sehen und den Strahlungsbereich meiden.

Kinyitáskor lézersugár!Nenézzen bele se szabad
szemmel, se optikai eszközökkel. Kerülje a
sugárnyalábbal valóérintkezést !

Aprendo l’unità vengono emesse radiazioni laser.
Non fissare il fascio, non guardarlo direttamente
con strumenti ottici e evitare l’esposizione diretta al
fascio.

Radiaciónláser al abrir. No mire fijamente ni
examine con instrumental óptico el haz de luz.
Evite la exposición directa al haz.

MT 2656, 2657, 2676 19

General Descriptions

This chapter includes descriptions for any ThinkPad model
that has the PC-Doctor DOS diagnostics program. Some
descriptions might not apply to your particular computer.

20 ThinkPad R30/R31 HMM

Read this first

Before you go to the checkout guide, be sure to read this
section.

Important Notes:
v Only certified trained personnel should service the

computer.

v Read the entire FRU service procedures before

replacing any FRUs.

v Use new nylon-coated screws when you replace

FRUs.

v Be extremely careful during write operations such

as copying, saving, or formatting. Drives in the

computer that you are servicing might have been
rearranged or the drive startup sequence might have
been altered. If you select an incorrect drive, data or
programs could be overwritten.

v Replace FRUs only for the correct model. When you

replace a FRU, make sure that the model of the
machine and FRU part number are correct by referring
to the FRU parts list.

v A FRU should not be replaced because of a single,

unreproducible failure. Single failure can occur for a

variety of reasons that have nothing to do with a
hardware defect, such as: cosmic radiation, electrostatic
discharge, or software error. FRU replacement should
be considered only when a recurring problem exists. In
this case, clear the error log and run the test again. Do
not replace FRUs if log errors do not reappear.

v Be careful not to replace a non-defective FRU.

What to do first

The servicer must include the following in the parts
exchange form or parts return form that is attached to the
returned FRU:

1. Name and phone number of servicer

2. Date of service

3. Date when part failed

4. Date of purchase

5. Failure symptoms, error codes appearing on display,
and beep symptoms

6. Procedure index and page number in which failing FRU
was detected

7. Failing FRU name and part number

8. Machine type, model number and serial number

9. Customer’s name and address

MT 2656, 2657, 2676

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Before checking problems with the computer, determine
whether the damage is covered under the warranty by
referring to the following:

Note for Warranty:

For Warranty:

During the warranty period, the customer may be
responsible for repair costs if the computer damage
was caused by misuse, accident, modification,
unsuitable physical or operating environment, or
improper maintenance by the customer. The
following list provides some common items that are
not covered under warranty and some symptoms
that may indicate the system was subjected to
stresses beyond normal use.

The following is not covered under warranty:

v LCD panel cracked by applying excessive force

or by being dropped.

v Scratched (cosmetic) parts.

v Cracked or broken plastic parts, broken latches,

broken pins, or broken connectors caused by
excessive force.

v Damage caused by liquid spilled into the system.

v Damage caused by improperly inserting a PC

Card or installation of an incompatible card.

v Damage caused by foreign material in the FDD.

v Diskette drive damage caused by pressing the

diskette drive cover or inserting diskettes with
multiple labels.

v Damaged or bent diskette drive eject button.

v CD-ROM/DVD-ROM drive damage caused by

excessive force, shock, or by being dropped.

v Fuses blown by attaching a nonsupported device.

v Forgotten computer password (making the

computer unusable).

The following symptoms might indicate damage
caused by non-warranted activities:

v Missing parts may be a symptom of unauthorized

service or modification.

v HDD spindles can become noisy if subjected to

excessive force or by being dropped.

v I9990303 errors can be caused by exposure to

strong magnetic fields.

22 ThinkPad R30/R31 HMM

FRU replacement notices

This section contains notices for removal and replacement.
Read this section carefully before replacing any FRU.

LCD replacement notice

The TFT LCD for the computer contains many thin-film
transistors (TFTs). A small number of missing, discolored,
or lighted dots (on all the time) is characteristic of TFT
LCD technology, but excessive pixel problems can cause
viewing concerns. The LCD should be replaced if the
number of missing, discolored, or lighted dots in any
background is:

v XGA : 8 or more bright dots, 8 or more dark dots, or a

total of 9 or more bright and dark dots.

Screw notices

This computer uses special nylon-coated screws with the
following characteristics:

v They maintain tight connections.

v They do not easily come loose, even with shock or

vibration.

v They need additional force to tighten.

v They should be used only once.

Do the following when you service this machine:

v Keep the screw kit (P/N 08K6560) in your tool bag.

v Always use new screws if you are instructed.

v Use a torque screwdriver if you have one.

Loose screws can cause a reliability problem. The IBM
ThinkPad computer addresses this problem with
nylon-coated screws. Tighten screws as follows:

v Plastic to plastic

Turn an additional 90 degrees after the screw head
touches the surface of the plastic part:

v Logic card to plastic

MT 2656, 2657, 2676

23

Turn an additional 180 degrees after the screw head
touches the surface of the plastic part:

v Torque driver

If you have a torque driver, refer to the ″Torque″ column
with each step.

v Make sure you use the correct screw, and tighten all

screws firmly to the torque shown in the table if you
have a torque screwdriver. Never use a screw that you

removed. Use a new one. Make sure the screws are
tightened firmly.

System board/LCD/Inverter replacement notice

Restoring the LCD panel ID

The EEPROM on the inverter stores its supported LCD
type ID code. If you replace a LCD with one of a different
brand or use a new inverter, the ID information in the
inverter EEPROM should be updated.

Follow the steps blew to set the LCD panel ID:

1. Install the ThinkPad CE Utility Diskette and restart the
computer.

2. Select 1. LCD Panel ID Utility from the main menu.

3. Follow the instruction on screen to read current or to
set new LCD Panel ID code.

4. Restart computer : the new LCD should work normally.

Note: When you set a new LCD Panel ID and the new

LCD is not yet enabled (to function), so connect an
external CRT to see the program execution process.

CAUTION:
Make sure the new ID code you choose corresponds
with the LCD brand and type. If you write a wrong ID
into inverterm, just reboot and re-execute the program
and input the correct ID code.

24 ThinkPad R30/R31 HMM

Note: If LCD cannot display after change ID code, make

sure you write the correct ID code, or try reseating
the LCD coaxtial cable connectors.

Thermal Sensor

The system is equipped with sensors to protect against
system overheating. By setting system and processor
thermal thresholds, the system can turn on the cooling fan
or shut down automatically when temperatures reach the
defined threshold parameters.

System experiencing frequent auto sensor shutdown may
need to reset the thermal sensor threshold and execute
the fan test to ensure the normal operation of the cooling
fan.

Follow the steps below to set thermal threshold:

1. Install the ThinkPad CE Utility Diskette and restart the
computer.

2. Select 2. Thermal Sensor Utility from the main menu.

3. Select 1. Read Thermal Settingto view the original
setting or 2. Set Default Thermal Settingto restore the
default setting.

UUID

The Universal Unique Identifier (UUID) is a 128–bit number
uniquely assigned to your computer at production and
stored in the EEPROM of your 24RF08. The algorithm that
generates the unique number is designed to provide
unique IDs until the year A.D. 3400. Consequently, no tow
computers in the world will have the same number.

When you replace the system board, you must set the
UUID on the new system board as follows:

1. Install the ThinkPad CE Utility Diskette and restart the
computer.

2. Select 3. UUID Data Utility from the main menu then
make a selection to read or create the UUID data.

A new UUID is created and written. If a valid UUID already
exists, it is not overwritten.

MT 2656, 2657, 2676

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Related service information

This section provides information about the following:

v “Power button as reset switch”

v “Running a low-level format”

v “Service Web site”

v “Passwords”

v “Power management features” on page 28

v “Fn key combinations” on page 30

v “Product recovery program” on page 30

Power button as reset switch

The power button acts as a reset switch when pressed for
more than 4 seconds. This resets the system (regardless
of the microcode status) and forces the power off. Use this
only when power is not completely off or the microcode is
in a hung state.

Running a low-level format

Attention: Make sure the drive address to be formatted

is correct. This procedure erases all information on the
disk.

To format the hard disk, select Utility, and then use the
Full Erase Hard Drive or Quick Erase Hard Drive in
Utility of the PC-Doctor for DOS program. Refer to “Testing
the computer” on page 34.

Service Web site

When the latest maintenance diskette and system program
service diskette are available, they are posted on:

Maintenance diskette:

http://www.pc.ibm.com/partner/infotips

System program service diskette:

http://www.pc.ibm.com/us/files.html or
http://www.pc.ibm.com/qtechinfo/TPAD-MATRIX.html

Passwords

When the power-on password (POP), hard disk password
(HDP), and supervisor password (SVP) are used, the
following situations may occur:

v If the POP is the same as the HDP, the POP prompt

appears, but the HDP prompt does not appear.

v If the POP is not the same as the HDP, both prompts

appear.

v When SVP is set, POST should invoke BIOS setup

without erasing POP. Before entering BIOS setup SVP

26 ThinkPad R30/R31 HMM

will be prompted. If correct SVP is entered, POST enters
BIOS setup without erasing POP. To boot up the system
user should override POP by SVP at the password
sub-menu.

v When SVP is not set, POST erase the POP and then

boots up the system.

Power-on passwords

Power-on password is a security feature that is used to
protect the system from unauthorized access. If power-on
password is forgotten, follow the procedure described in ″
Removing the Power-on password″.

Supervisor password

A supervisor password (SVP) protects the system
information stored in the IBM BIOS Setup Utility . The SVP
must be entered in order to access the IBM BIOS Setup
Utility and make changes to system configuration settings.

Attention: If the SVP has been forgotten and cannot be
made available to the servicer, there is no service
procedure to reset the password. The system board must
be replaced for a scheduled fee.

Removing the power-on password

If the customer forgets the power-on password, follow this
procedure to erase POP if SVP is not set:

1. Turn off the system.

2. Set DIP SW “Switch Locations” on page 193.

3. Turn on the system, and confirm the system starts
without prompting for Power-on password.

4. Turn off the system.

5. Set DIP SW “Switch Locations” on page 193.

If SVP is set, do the followings to erase POP:

1. Power on the computer and press F1 to enter the

BIOS Utility menu.

2. Enter correct SVP (Supervisor password) at the
password prompt.

MT 2656, 2657, 2676

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3. The main screen displays as below:

4. Using the up or down arrow key, select Password.

5. Press the Enter key.

The following submenu is displayed:

* Power-On password

* Supervisor password

* Lock BIOS setting

* Hard disk x password

6. Select Power-On password and press Enter .

7. Type in correct SVP at ″Enter Current Password″
and press Enter.

8. PressEnter at ″Enter New Password″.

9. Press Enter at ″Confirm New Password″.

10. Press Enter in the Changes have been saved

window.

11. Press F10; then select Yes in the Setup confirmation

window.

Hard disk password

The hard disk password is a security feature that is used
to protect the hard disk data from unauthorized access.

Attention: If the hard disk password is forgotten, IBM
does not provide any services to reset the hard drive
password nor recover data from the hard drive. The hard
drive can be replaced for a scheduled fee.

Power management features

Power management modes are available in the computer
system to reduce power consumption and to prolong
battery life.

28 ThinkPad R30/R31 HMM

Standby mode

When in standby mode, the following occurs:

v The LCD backlight turns off.

v The hard disk motor either spins down or stops

(controlled by OS).

v Suspend LED turns on.

Events that cause the computer to enter standby mode:

Note: These events depend on the Power button, Sleep

button and Lid settings (options set to standby

mode) in the ″Advanced″ page of the ″Power
Management Properties″ screen.

v Standby requested by the Sleep button (Fn+F4)

v Standby requested by the power button

v Standby requested by closing the lid.

Events that cause the computer to exit standby mode:

v RTC alarm

v Power-on switch is operated

v Fn key is pressed

v The LCD is opened (if the system entered standby

mode from closing the lid).

Note: ThisistrueifWhen I close the lid of my

portable computer: is set to Standby in the

″Advanced″ page of the ″Power Management
Properties″ screen.

v An embedded modem signals the modem ring indicator

v The battery power is at a critical level.

Display off mode

When in display off mode, the following occur:

v The LCD backlight turns off.

Events that cause the computer to enter display off mode:

v Hotkey : Fn+F3

Events that cause the computer to exit display off mode:

v Anykey or mouse operation

Hibernation mode

When in hibernation mode, the following occurs:

v The system status, RAM, VRAM, and setup data are

stored on the hard disk.

v The system is powered off.

Events that cause the computer to enter hibernation mode:

MT 2656, 2657, 2676

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Note: These events depend on the Power button, Sleep

button and Lid settings (options set to hibernate

mode) in the ″Advanced″ page of the ″Power
Management Properties″ screen.

v Hibernation requested by the Sleep button (Fn+F4) or

(Fn+F12)

v Hibernation requested by the power button

v Hibernation requested by closing the lid.

Events that cause the computer to exit hibernation mode:

v RTC alarm

v Power-on switch is operated

v WOL (wake on Lan)

When power is turned on, the hibernation history in the
boot record on the hard disk is recognized and the system
status is restored from the hard disk to resume operation.

Fn key combinations

The following table shows the Fn key and function key
combinations and their corresponding functions. Some of
the keys do not work if proper device drivers and utilities
are not installed.

Fn key Function

Fn+F3 Display off

Fn+F4 Sleep button

Fn+F7 Switch display output location.

Fn+F8 Display expansion

Fn+F12 Hibernation

Fn+PageUp Thinkpad light

Fn+Home Brightness up

Fn+End Brightness down

Product recovery program

Restoring the Pre-installed Software

To restore the pre-installed software, you can use either
the Product Recovery program or a Recovery CD. The
Product Recovery program is in a section of the hard disk
drive (the Service Partition) that is not displayed by
Windows Explorer. Use the Recovery CD if it was provided
with the computer.

Note: The recovery process might take up to 2 hours.

To use the Product Recovery program to restore the
pre-installed software, do the following:

30 ThinkPad R30/R31 HMM

1. Save all files and shut down the desktop.

2. Turn off the computer.

3. Turn on the computer. Quickly press F11 when this
message is displayed on the screen: ...″To start the

Product Recovery program, press F11″ .....This

message is displayed for only a few seconds.

Note: If this message does not appear, you can use a

Recovery Repair diskette to get access to the
Product Recovery program.(see“Creating a
Recovery Repair diskette” on page 32 for
instructions for making the Recovery Repair
diskette)

4. From the list displayed on the screen, select the
operating system you want to recover.

5. Select the recovery options you want, and follow the
instructions on the screen.

Creating the Service Partition

To create Service Partition and install the preloaded
system from Recovery CD, do the following;

To create Service Partition [SP]:

1. Erase all partitions on the hard-disk drive using
FDISK or similar application.

2. Boot with Recovery CD (and boot diskette if required).

3. A menu will appear stating ″Your computer

originally included a Product Recovery program ...
Reinstall the Product Recovery Program? (Y/N) [
]″.}.

Note: If the hard-disk drive contains any partitions,

you will not receive this menu - go to step 1.

4. Enter ″Y″ and Service Partition will be created and
loaded with D2D files.

Note: If you do not want to create Service Partition,

press ″N″ , and the d then go to step 8.

5. Press ″Enter″ at next window to continue.

* Service Partition will be created. System will
automatically reboot during this process.

* Recovery process will copy some files to the Service
Partition, PKUNZIP others

* Follow prompts - you may be prompted to change
CDs.

* System will reboot when complete, continue to step
6 to install preloaded system.

Install preloaded system from CD:

6. Boot with Recovery CD (and boot diskette if required)

MT 2656, 2657, 2676

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7. If the hard-disk drive is blank, a menu will appear

stating ″Your computer originally included a

Product Recovery program ... Reinstall the
Product Recovery Program? (Y/N) [ ]″.}.

* To install Service Partition, go to step 4.

* To preload hard-disk drive without installing Service
Partition, press ″N″.

8. If a menu appears asking which operating system to
install, highlight proper operating system and press
″″ENTER″.

9. A menu will appear stating ″Full Recovery:″. Press
″″ENTER″ to select.

10. Enter ″Y″ at the three windows which follow.

11. Follow prompts to complete Recovery.

Creating a Recovery Repair diskette

The Recovery Repair diskette is used to recover the
prompt that is needed to access the Product Recovery
program, if the prompt does not appear. Make a Recovery
Repair diskette and save it for future use.

To make a Recovery Repair diskette:

1. Shut down and turn off the computer.

2. Attach the external diskette drive to the computer.

3. At the prompt, pressF11. (The option to pressF11
appears for only a few seconds. You must press F11
quickly.) The Product Recovery program main menu
appears.

4. If you are using Windows 2000 Professional, you will
be prompted to select the appropriate operating system
setting. This menu does not appear for Windows 98
SE.

5. Select System Utilities from the main menu. Press
Enter.

6. Select Create a Recovery Repair diskette. Press Enter.

7. Follow the on-screen instructions.

8. When the process is completed, label the diskette as
the Recovery Repair diskette and save it for future use.

To use the Recovery Repair diskette:

1. Shut down and turn off the computer.

2. Attach the external diskette drive to the computer.

3. Insert the Recovery Repair diskette into the drive; then
turn on the computer.

4. Follow the on-screen instructions.

32 ThinkPad R30/R31 HMM

Flash BIOS

Please do the following to update BIOS.

To update BIOS:

1. Create the diskette image by the following command:

LOADDSKF 1FUDxxUS.DSK A:

Note: XX: Translate to appropriate number.

2. Boot from the diskette. (Please make sure already
attach AC and Battery)

3. When completed, the system is automatically turned
off.

4. Make sure there is no diskette in the diskette drive,
then turn on the computer.

5. PressF1 key into BIOS setup Utility during the boot
time.

Note: ″Press F1 for IBM BIOS Setup Utility″ message

is displayed at the lower-left area of the screen.

6. Press the F9 key to load default configuration.

7. Select Yes.

8. Press the F10 key to save default configuration.

9. Select Yes. The system will restart automatically.

MT 2656, 2657, 2676

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Checkout guide

Use the following procedure as a guide for computer
problems.

Note: The diagnostic tests are intended to test only IBM

products. Non-IBM products, prototype cards, or
modified options can give false errors and invalid
system responses.

1. Obtain the failing symptoms in as much detail as
possible.

2. Verify the symptoms by attempting to recreate the
failure by running the diagnostic test or by repeating
the same operation.

Testing the computer

The ThinkPad computer has a test program called
PC-Doctor DOS (hereafter called PC-Doctor). You can
detect errors by running the diagnostics test of PC-Doctor.
This section is an overview on detecting the problem.
Refer to “Product overview” on page 102 for details that
depend on model-unique functions.

To run the test, do the following:

Note: In the following procedure, you can select an item

not only with the arrow keys, but also with the
TrackPoint. Instead of pressing Enter, you also can
click the left click button.

1. Insert the PC-Doctor DOS Disk into the diskette drive;
then power on the computer.

If the computer cannot be powered on, go to “Power
systems checkout” on page 36 and check the power
sources.

If an error code appears, go to “Symptom-to-FRU
Index” on page 40.

The PC-Doctor main panel appears.

2. Select Diagnostics with the arrow keys, and press
Enter.

A pull-down menu appears:

Note: The pull-down menu differs depending on the

model.

3. Run the applicable function test.

4. Follow the instructions on the screen. If there is a
problem, PC-Doctor shows some messages.

5. Reseat the cable or connector of the detected FRU
and run the test again.

34 ThinkPad R30/R31 HMM

If the error recurs, replace the FRU that caused the
error.

Note: With some FRUs, especially the system board,

the problem may be caused by peripheral
FRUs. Verify that each peripheral FRU, such as
the flexible cable, has no problem by doing the
following:

a. Replace each peripheral FRU one at a time,

and run the test again.

b. If the peripheral FRUs have no problem,

replace the main FRU itself.

To see the FRU structure of each model,
refer to “Product overview” on page 102.

6. To exit the test, select Quit – Exit Diag.
To cancel the test, press Esc.

The following table lists the options on the test menu.

Diagnostics Interactive Tests

v Run Normal Test

v Run Quick Test

v CPU/Coprocessor

v Systemboard

v Video Adapter

v Serial Port

v Parallel Port

v Fixed Disks

v Diskette Drives

v Other Devices

v Wireless network controller

(802.11b)

v Memory Test – Full

v Memory Test – Quick

Note: In Keyboard test within Interactive Tests, the Fn key is
scanned only once. Each key should be pressed for at least 2
seconds; otherwise, it cannot be sensed.

v Keyboard

v Video

v Internal Speaker

v Mouse

v Joystick Test

v Diskette Test

v System Load

v CD-ROM/DVD

v Stereo Speaker

Related service information

PC-Doctor can detect the following system information:

Hardware Info:

v System Configuration

v Memory Contents

v Physical Disk Drive

v Logical Disk Drive

MT 2656, 2657, 2676

35

v VGA Information

v IDE Drive Information

v PCI Information

v PNPISA Information

v SMBIOS Information

v FRU Information

v VESA LCD Information

Utility:

v Run External Tests

v Surface Scan Hard Disk

v Benchmark System

v DOS Shell

v Tech Support Form

v Battery Rundown

v View Test Log

v Print Log

v Save Log

v Full Erase Hard Drive

v Quick Erase Hard Drive

Power systems checkout

To verify the symptom of the power problem on the
computer, do the following:

1. Power off the computer.

2. Remove the battery pack.

3. Connect the AC Adapter.

4. Check that power is supplied when you power on the
computer.

5. Power off the computer.

6. Disconnect the AC Adapter and install the charged
battery pack.

7. Check that power is supplied by the battery pack when
you power on the computer.

If you suspect a power problem, refer the appropriate
power supply check listed below:

v “Checking the AC Adapter”

v “Checking operational charging” on page 37

v “Checking the Battery ASM” on page 38

Checking the AC Adapter

You care here because the computer fails only when the
AC Adapter is used:

36 ThinkPad R30/R31 HMM

v If the power-on indicator does not turn on, check the

power cord of the AC Adapter for correct continuity and
installation.

v If the operational charge does not work, go to “Checking

operational charging”.

Unplug the AC Adapter cable from the computer and
measure the output voltage at the plug of the AC Adapter
cable. See the following figure:

Pin Voltage (V dc)

1 15.5 V. - 17.0 V.

2 Ground

If the voltage is not correct, replace the AC Adapter.

If the voltage is within the range, do the following:

v Replace the system board.

v If the problems still persist, go to “Undetermined

Problems” on page 49.

Note: An audible noise from the AC Adapter does not

always indicate a defect.

Checking operational charging

To check operational charging, use a discharged battery
pack (Battery ASM) or a Battery ASM that has less than
50% of the total power remaining when installed in the
computer.

Perform operational charging. If the battery status indicator
or icon does not turn on, remove the Battery ASM and let it
return to room temperature. Reinstall the Battery ASM. If
the charge indicator or icon still does not turn on, replace
the Battery ASM.

If the charge indicator still does not turn on, replace the
system board. Then reinstall the Battery ASM. If the
reinstalled Battery ASM is not charged, go to the next
section.

MT 2656, 2657, 2676

37

Checking the Battery ASM

Note: The Battery ASM may not be able to charged when

it is hot. In that case, remove it from the computer
and leave it at room temperature for a while. After it
cools down, reinstall it and recharge it.

Do the following:

1. Power off the computer.

2. Remove the battery pack and measure the voltage
between battery terminals 1 (+) and 6 (-). See the
following figure.

2

3

4

5

6

1

Terminal Pin No. Description

1 1 +0 to +12.6 for LiION

+0 to +13V for NiMH

2 Slit Isolation slit

3 4 Thermistor

4 5 Battery —

Note: Signal lines, not used in these steps, are used

for communications between the system and the
battery.

3. If the voltage is less than +11.0 V dc, the battery pack
has been discharged. Note: Recharging will take at
least 3 hours, even if the indicator does not turn on. If
the voltage is still less than +11.0 V dc after
recharging, replace the battery.

4. If the voltage is more than 8V for NiMH, 9V for LiION,
measure the resistance between battery terminals 5
and 6. The resistance must be 4 to 30K.Ifthe

38 ThinkPad R30/R31 HMM

resistance is not correct, replace the Battery ASM. If
the resistance is correct, replace the system board.

MT 2656, 2657, 2676

39

Symptom-to-FRU Index

The Symptom-to-FRU Index lists the symptoms and errors
and the possible causes. The most likely cause is listed
first.

Note: Perform the FRU replacement or actions in the

sequence shown in the FRU/Action columns. If a
FRU does not solve the problem, put the original
part back in the computer. Do not replace a
non-defective FRU.

This index can also be used to help you decide which
FRUs should be available when servicing a computer.

Numeric error codes show the errors detected in POST or
system operation (runtime). In the following error codes, X
can be any number.

If no codes are available, use narrative symptoms.

If the symptom, is not listed, go to “Undetermined
Problems” on page 49.

Note: For any IBM device not supported by the diagnostic

codes in this ThinkPad computer, see the manual
for that device.

Numeric Error Codes and Messages

Error
Code

0200 Failure Fixed

010 Memory Error

Message Meanings Comment

Disk

at mmmm:
nnnn

Fixed disk is not
working or not
configured
properly. Check
to see if fixed
disk is attached
properly. Run
setup. Find out if
the fixed-disk
type is correctly
identified.

Extended
memory not
working or not
configured
properly at offset
nnnn,

40 ThinkPad R30/R31 HMM

Check whether
fixed disk is
attached
properly (e.g.
cable, jumper,
power,..). Enter
Setup to check if
the fixed disk
type is correctly
identified.

Change memory
module.

Error
Code

0250 System battery

0251 System CMOS

0270 Real time clock

0271 Check date and

Message Meanings Comment

is dead Replace
and run SETUP

checksum
bad-default
configuration

error

time settings

The CMOS clock
battery indicator
shows the
battery is dead.
Replace the
battery and run
Setup to
reconfigure the
system.

System CMOS
has been
corrupted or
modified
incorrectly,
perhaps by an
application
program that
changes data
stored in CMOS.
The BIOS
installed Default
Setup Values. If
you do not want
these values,
enter Setup and
enter your own
values. If the
error persists,
check the system
battery or contact
your dealer.

Real-Time Clock
fails BIOS
hardware test.
May require
board repair.

BIOS found date
or time out of
range and reset
the Real-Time
Clock. May
require setting
legal date
(1991–2099).

Replace the
CMOS battery
and Run Setup
to reconfigure
the system.

Enter Setup to
configure the
system. If the
error persists,
check the
system battery.

The mainboard
may need the
system date and
time.

Enter Setup to
reconfigure the
system date and
time.

MT 2656, 2657, 2676 41

Error
Code

0280 Previous boot

041

043

0175 Bad CRC1,

0188 Invalid RFID

0189 Invalid RFID

Message Meanings Comment

incomplete­Default
configuration
used

Floppy drive
Aerror

Floppy drive B
error

stop POST task

Serialization
Information
Area or Bad
CRC2

Configuration
Information
Area

Previous POST
did not complete
successfully.
POST loads
default values
and offers to run
Setup. If the
failure was
caused by
incorrect values
and they are not
corrected, the
next boot will
likely fail. On
system with
control of wait
states, improper
Setup settings
can also
teminate POST
and cause this
error on the next
boot. Run Setup
and verify that
wait-state
configuration is
correct. This
error is cleared
the next time the
system is
booted.

Drive A: or B: is
present but fails
the BIOS POST
diskette tests.
CHeck to see
that the drive is
defined with the
proper diskette
type in Setup
and that the
diskette drive is
attached corretly.

EEPROM CRC1
is not correct
(block #6).

EEPROM
checksum is not
correct (block
#0,1).EEPROM
CRC2 is not
correct (block
#6).

EEPROM
checksum is not
correct (block
#4,5).

IBM customized
not to display
this message.

Check Floppy
drive is attached
correctly. Enter
Setup to check
the type of
floppy drive is
correct (1.44MB

3.5″, for
example).

Replace planar.

Replace planar.
Box serial
number needs
to be reinstalled.

Replace planar.
UUID needs to
be reinstalled.

42 ThinkPad R30/R31 HMM

Error
Code

0193 RF antenna had

0194 The computer is

0197 Invalid remote

Message Meanings Comment

been removed

carried through
the security
gate

change
requested

RFID antenna
has been
removed, which
was once
installed.

The computer is
carried through
the security gate
(portal gate).

The remote
chnfiguration for
the security chip
has failed.
Confirm the
operation and try
again.

RFID model
only.

RFID model
only.

System go into
BIOS Setup
automatically.

Beep Symptoms

Event Description S1/S3 Beep

POST

Diagnostic
boot

Post error N/A 3 short beeps

Low battery
warning beep

Critical
Thermal

DRAM type
error

End Diagnostic
boot

System POST N/A 3 long beeps

PC133 SDRAM
only

N/A 1 short beep

N/A 4 short beeps

N/A 2 long beeps

Responses of
Boot Block
BIOS Flash

Run Time /
Sleep state

BaySwap
alarm

AC
attach/detach

Power Control
Beep

Volume control
beep

Success N/A 2 long, 1 short, and

BIOS file size
mismatch

BIOS file
reading error

Floppy drive not
installed

Inhibit bay swap Yes Continuous 2 short, 1

System enters /
resume from
S1/S3/S4 state.

Volume key
Up/Down

then 1 long beep

N/A 1 long, 1 short beep

N/A 1 long, 2 short beeps

N/A 2 short beeps

long beeps .

NO 1 short beep

N/A 1 short beep

N/A 1 short beep

MT 2656, 2657, 2676 43

LCD-Related Symptoms

LCD FRU Replacement Notice

The TFT LCD for the computer contains many
thin-film transistors (TFTs). A small number of
missing, discolored, or lighted dots (on all the time)
is characteristic of TFT LCD technology, but
excessive pixel problems can cause viewing
concerns. The LCD should be replaced if the
number of missing, discolored, or lighted dots in any
background is:

v XGA : 8 or more bright dots, 8 or more dark dots,

or a total of 9 or more bright and dark dots.

Symptom/Error FRU/Action in Sequence

LCD backlight does not
work.

LCD is too dark.

LCD brightness cannot
be adjusted.

Unreadable LCD screen.

Missing pixels in
characters.

Abnormal screen

Wrong color displayed.

LCD has extra horizontal
or vertical lines
displayed.

v Keyboard (if contrast and

brightness function keys do not
work)

v Reseat LCD connector

v Check LCD inverter ID

v LCD Cable ASM

v LCD Inverter/LED board

(13.3″/14.1″)

v LCD

v System board

v Reseat LCD connector

v Check LCD inverter ID

v LCD Cable ASM

v LCD Inverter/LED board

(13.3″/14.1″)

v LCD

v System board

v Check LCD inverter ID

v LCD Cable ASM

v LCD Inverter/LED board

(13.3″/14.1″)

v LCD

v System board

44 ThinkPad R30/R31 HMM

Keyboard/TrackPoint-Related Symptoms

Symptom/Error FRU/Action in Sequence

Keyboard (one or more
keys) doesn’t work.

TrackPoint does not
work.

v Go to “FRU tests” on page 54.

v Reseat keyboard cable.

v Keyboard

v System board

v Go to “FRU tests” on page 54.

v Reseat keyboard cable.

v Keyboard

v System board

Indicator-Related Symptoms

Symptom/Error FRU/Action in Sequence

Indicator incorrectly
remains off or on, but
system runs correctly.

v Reseat Inveter/LED board

(13.3″/14.1″)

v Inveter/LED board (13.3″/14.1″)

v System board

v Coaxial cable

Power-Related Symptoms

Symptom/Error FRU/Action in Sequence

Power shuts down during
operation.

The system doesn’t
power on.

The system doesn’t
power off.

v Go to “Power systems checkout” on

page 36.

v AC Adapter

v Battery assembly

v Keyboard

v System board

v Go to “Power systems checkout” on

page 36.

v AC Adapter

v Battery assembly

v Keyboard

v System board

v Go to “Power systems checkout” on

page 36.

v Hold and press the power switch

for more than 4 seconds.

v Keyboard

v System board

MT 2656, 2657, 2676 45

Symptom/Error FRU/Action in Sequence

Battery can’t be charged.

v Go to “Power systems checkout” on

page 36.

v Battery assembly

v System board

Memory-Related Symptom

Symptom/Error FRU/Action in Sequence

Memory count (size)
appears different from
the actual size. (The
main memory with 8MB
of VGA.)

v Go to “FRU tests” on page 54.

v Enter BIOS Utility and execute

″Load Setup Default Settings″; then
reboot the system.

v DIMM

v System board

Audio-Related Symptoms

Symptom/Error FRU/Action in Sequence

Internal speakers make
noise or emit no sound.

External speakers make
noise or emit no sound.

In DOS or Windows,
multimedia programs, no
sound comes from the
computer. (Only system
beeps are heard at
power-on.)

v Speaker volume control

v Go to “FRU tests” on page 54.

v Speaker(s)

v Speaker volume control

v Go to “FRU tests” on page 54.

v Speaker(s)

v Speaker volume control

v Go to “FRU tests” on page 54.

v Speaker(s)

PC Card (PCMCIA)-Related Symptoms

Symptom/Error FRU/Action in Sequence

System cannot detect the
PC Card (PCMCIA)

PCMCIA slot pin is
damaged.

46 ThinkPad R30/R31 HMM

v PC Card (PCMCIA) holder

assembly

v System board

PC Card (PCMCIA) holder assembly

Power Management-Related Symptoms

Symptom/Error FRU/Action in Sequence

The system doesn’t enter
hibernation mode.

The system doesn’t
resume from hibernation
mode.

The system doesn’t enter
into or resume from
sleep mode after closing
the LCD.

System configuration
does not match the
installed devices.

System hangs
intermittently.

v Go to “Hibernation mode” on

page 29.

v Boot an operating system and

press Fn+F12 and see if the
computer enters hibernation mode.

v Keyboard

v Hard disk drive connector

v Hard disk drive

v System board

v Go to “Hibernation mode” on

page 29.

v Hard disk drive connector

v Hard disk drive

v System board

v Lid switch

v System board

v Lid close action in the power

operation properties of the OS

v Enter BIOS Utility and execute

″Load Setup Default Settings″; then
reboot the system.

v Reseat Hard disk/diskette/CD-ROM

drive connector.

v Reseat hard disk/diskette/CD-ROM

drive connector.

v Fan ASM (go to “FRU tests” on

page 54).

v System board

Peripheral-Device-Related Symptoms

Symptom/Error FRU/Action in Sequence

External display does not
work correctly.

Printer problems.

v Both display mode, press Fn+F7.

v System board

v Run printer self-test.

v Printer driver

v Printer cable

v Ensure that ″Parallel Port″ in the

″Config sub-menu″ menu of the
BIOS Utility is correctly set.

v System board

MT 2656, 2657, 2676 47

Symptom/Error FRU/Action in Sequence

Parallel port device
problems.

v Device driver

v Device cable

v Device

v Ensure that ″Parallel Port″ in the

″Config sub-menu″ menu of the
BIOS Utility is correctly set.

v System board

Modem-Related Symptom

Symptom/Error FRU/Action in Sequence

Internal modem does not
work correctly

v Go to “FRU tests” on page 54.

v Modem connector

v Modem board

v System board

Operating System-Related Symptom

Symptom/Error FRU/Action in Sequence

Operating system not
found

v Check that the operating system

has no failure and is installed
correctly.

v Check the Boot device list in the

startup/Boot sub-menu is enabled
on each bootable device.

v Enter IBM BIOS Setup Utility and

see whether the hard disk drive
and the diskette drive are properly
identified.

v Reseat the hard disk drive.

v Reinstall the operating system.

v Diskette drive

v Hard disk drive

v System board

Intermittent Problems

Intermittent system hang problems can be caused by a
variety of reasons that have nothing to do with a hardware
defect, such as cosmic radiation, electronic discharge, or
software errors. FRU replacement should only be
considered when a recurring problem exists.

When analyzing on intermittent problem, do the following:

48 ThinkPad R30/R31 HMM

1. Run the diagnostic test for the system board at least
10 times.

2. If no error is detected, do not replace any FRUs.

3. If any error is detected, replace the FRU. Rerun the
test to verify that there are no more errors.

Undetermined Problems

The diagnostic tests did not identify which adapter or
device failed, which installed devices are incorrect, whether
a short circuit is suspected, or whether the system is
inoperative. Follow the procedures below to isolate the
failing FRU.

Verify that the power supply being used at the time of the
failure is operating correctly.

1. Power off the computer.

2. Check the cables, wires, and connectors for short
circuits and open circuits. Visually check them for
damage. If any problems are found, replace the FRU.

3. Remove or disconnect all of the following devices:

v Non-IBM devices

v Printer, external mouse & keyboard, and other

external devices

v Battery pack

v Hard disk drive

v CD-ROM drive/Diskette drive (optional)

v PC Card (PCMCIA)

4. Power on the computer.

5. Determine if the problem has changed.

6. If the problem does not occur again, reconnect the
removed devices one at a time until you find the failing
FRU.

7. If the problem remains, replace the following FRUs one
at a time. Do not replace a non-defective FRU.

v Hard disk drive connection board

v LCD assembly

v System board

MT 2656, 2657, 2676

49

ThinkPad R30

This section applies to the following models: 2656, 2657,

2676.

50 ThinkPad R30/R31 HMM

Product overview

The following shows an overview of the system features.

Feature Description

Processor Intel Pentium III Celeron processor

Bus architecture Host bus 64bits/100 MHz, PCI 32

System memory 64 MB or 128 MB base main memory

CMOS RAM 242 bytes + 4 Kbytes

Video Trident Cyberblade Aladdin i1 with

Audio AC97 audio based on the Ali M1535

Diskette drive (optional) External 1.44MB (3–mode), 3.5 inch

Hard disk drive 10GB, 15GB or 30GB, 2.5–inch

CD-ROM drive CD-ROM: 5.25–inch, 24X speed,

Modem Integrated CDC soft Modem based on

800/100, 900/100 MHz, 1 GHz, L2
cache

bits/33 MHz, ISA 16 bits/8.33 MHz,
PCMCIA 16 bits/33MHz, Cardbus 32
bits/32 MHz

on system board PC 133

Two 144pins SODIMM slots supports
64 MB, 128MB, 256MB, and 512MB
DIMM card

Maximum frequency: PC 133

Maximum size: 1024 MB

2D/3D Graphics accelerator.

8MB Video RAM (share with system
memory)

13.3–inch, 32 bit true colors, 1024x768
pixel TFT XGA color LCD

14.1–inch, 32 bit true colors, 1024x768
pixel TFT XGA color LCD

AC link DMA engine

16–bit audio

Internal stereo speakers

floppy drive via USB interface
(Bootable)

9.5mm height, E-IDE interface

E-IDE interface

DVD— ROM : 8X speed

DVD/ CD— RW : 6X DVD/ 4X, 24X
CD-RW

CD-RW

the Ali M1535 AC link DMA engine 56
Kbps Data/Fax Modem

MT 2656, 2657, 2676 51

Feature Description

Ethernet (optional) Intel 82550GY on board . It supports

IEEE 1394 (optional) Ti TSB43AB22 1394 controller on

PC Card (PCMCIA) One Type I/II or Type III

I/O ports External monitor

Power 72–Watt AC Adapter

10/100Mbps

board

IEEE 1394.a 4–pin connector — no
cable power

100Mbps, 200Mbps and 400Mbps

Speaker-out

Microphone-in

DC-in

TV-out (S-Video out)

Parallel

Two USB

IEEE 1394a (optional)

Telephone (RJ11)

LAN (RJ45, optional)

6–cell Li-Ion & 8–cell NiMH Battery
Packs (Dumb Battery)

Status indicators

The system-status indicators on the computer show the
current status of your computer by their on or off states
and colors (green and orange). Each indicator is identified
with a symbol. The following shows the location and the

52 ThinkPad R30/R31 HMM

meaning of each icon:

7

6

Symbol Color Meaning

(1) Drive in use

(2) Numeric lock

Green Data is being read from or

Green The numeric keypad on the

written to the hard disk. Do
not enter standby mode or
power off the computer
when this indicator is on.

keyboard is enabled. You
enable or disable the
keypad by pressing and
holding the Shift key, and
pressing the NumLk key.
For details, see the User’s
Reference.

MT 2656, 2657, 2676 53

Symbol Color Meaning

(3) Caps lock

(4) Scroll lock

(5) Power on

(6) Battery status

(7) Standby mode

Green Caps Lock mode is

Green Scroll Lock mode is

Green The computer is

Green Enough battery power

Blinking
green

Blinking
orange

Orange The battery pack is being

Green The computer is in standby

enabled. All alphabetic
characters (A-Z) are
entered in capital letters
without the Shift key being
pressed. You enable or
disable the Caps Lock
mode by pressing the Caps
Lock key.

enabled. The Arrow keys
can be used as
screen-scroll function keys.
The cursor cannot be
moved with the Arrow
keys. Not all application

programs support this
function. You enable or

disable Scroll Lock mode by
pressing the ScrLk key.

operational. This indicator is
on when the computer is
on.

remains for operation.

The battery power charges
up to 80% full power

The battery pack needs to
be charged

charged.

mode

FRU tests

The following table shows the applicable test for each FRU
using PC-Doctor.

FRU Applicable test

System board

Power Battery (Diagnostics)

LCD unit

54 ThinkPad R30/R31 HMM

1. CPU/Coprocessor (Diagnostics)

2. System board (Diagnostics)

1. Video Adapter (Diagnostics)

2. Video (Interactive Tests)

FRU Applicable test

Modem

Audio Internal Speaker (Interactive Tests)

Speaker System beeper: Internal Speaker

PC Card slots System board (Diagnostics)

Keyboard

TrackPont or Pointing
device

Hard disk drive Fixed Disks (Diagnostics)

CD-ROM drive CD-ROM, DVD, CD-RW, DVD/CD-RW

Memory

Fan

1. Make sure the modem set up
correctly.

2. Replacing the modem jack and
modem card one at a time, run the
modem tests in Other Devices
(Diagnostics)

Stereo Speaker (Interactive Tests)

(Interactive Tests)

1. Keyboard (Diagnostics)

2. Keyboard (Interactive Tests)

If the TrackPoint does not work, see if an
external PS/2 mouse is connected to the
mouse/keyboard connector and remove
it. The TrackPoint is automatically
disabled if an external PS/2 mouse is
attached. Check also if the TrackPoint
driver is correctly installed by accessing
Windows Device Manager via the System
icon in the Control Panel.

After you use the TrackPoint, the pointer
drifts on the screen for a short time. This
self-acting pointer movement can occur
when a slight, steady pressure is applied
to the TrackPoint pointer. This symptom
is not a hardware problem. No service
actions are necessary if the pointer
movement stops in a short period of time.

If this does not correct the TrackPoint
problem, continue with the following:
Mouse (Interactive Tests).

(Interactive Tests)

1. If a DIMM is installed, remove it and
run Memory Test-Quick (Diagnostics)

2. If the problem does not recur, replace
the DIMM and run the test again.

3. If the test does not detect the error,
run Memory Test-Full (Diagnostics)

1. Power on system and check the air
turbulence at the louver at the rear of
the computer.

2. Run the fan test in Other Devices
(Diagnostics).

MT 2656, 2657, 2676 55

FRU removals and replacements

This section contains information about removals and
replacements.

v Do not damage any parts. Only certified and trained

personnel should service the computer.

v The arrows in this section show the direction of

movement to remove a FRU, or to turn a screw to
release the FRU. The arrows are marked in numeric
order, in square callout, to show the correct sequence of
removal.

v Any FRUs that must be removed before removing the

failing FRU are listed at the top of the page.

v To replace a FRU, reverse the removal procedure and

follow any notes that pertain to replacement. See
“Locations” on page 84 for internal cable connections
and arrangement information.

v When replacing a FRU, use the correct screw size, as

shown in the procedure.

Safety Notice 1

Translations in ″Safety Notices (Multi-lingual
Translations)″ section: Before 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.

Safety Notice 3

Translations in ″Safety Notices (Multi-lingual
Translations)″ section: 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.

56 ThinkPad R30/R31 HMM

Safety Notice 8

Translations in ″Safety Notices (Multi-lingual
Translations)″ section: Before removing any FRU,
power-off the computer, unplug all power cords from
electrical outlets, remove the battery pack, then
disconnect any interconnecting cables.

Attention: The system board is sensitive and can be
damaged by electronic discharge. Establish personal
grounding by touching a ground point with one hand before
touching these units.

An electrostatic discharge (ESD) strap (P/N: 6405959)
must be used to establish personal grounding.

1010 Battery assembly

1

2

Warning

Battery packs are capable of delivering high
currents for a significant amount of time. Do not
short the battery terminals.

CAUTION:
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type
recommended by the manufacturer. Dispose of used
batteries according to the manufacturer’s instructions.

1020 Mini-PCI cover and Mini-PCI card

v “1010 Battery assembly”

MT 2656, 2657, 2676

57

2

1

Note: The screw does not separate from the PCI cover.

3

4

Note: There are 2 cables on step 4 : The gray cable is the

main antenna and the black cable is the auxiliarey
antenna.

Note: When you install the PCI card, remember to press it

down and ensure the connection is well.

58 ThinkPad R30/R31 HMM

1030 Memory cover and Memory card

v “1010 Battery assembly” on page 57

2

1

Note: The screw does not separate from the memory

cover.

3

To install the memory card:

With the notched end of the memory card toward the right
side of the socket, insert the memory card, at an angle of
approximately 20°, into the socket; then press it firmly.

MT 2656, 2657, 2676

59

Pivot the memory card until it snaps into place.

Side View

1040 Hard disk drive assembly

v “1010 Battery assembly” on page 57

1

2

Step Size (Quantity) Color Torque

1 M3 x L4 (1) Black 3.2 kgf-cm

60 ThinkPad R30/R31 HMM

Warning

Do not drop or apply any shock to the hard disk
drive. The hard disk drive is sensitive to physical
shock. Incorrect handling can cause damage and
permanent loss of data on the drive.

Before removing the drive, have the user make a
backup copy of all the information on the drive if
possible.

Never remove the drive while the system is
operating or is in suspend mode.

1050 CD-ROM assembly

v “1010 Battery assembly” on page 57

1

2

3

1060 Keyboard

v “1010 Battery assembly” on page 57

MT 2656, 2657, 2676

61

1

Step Size (Quantity) Color Torque

1 M2.5 x L10 (2) Black 3.2 kgf-cm

62 ThinkPad R30/R31 HMM

2

4

3

33

Notes:

1. When replacing the keyboard, make sure that the cable
is clean and insert it directly into the connector, making
sure it makes contact with the bottom of the connector.

2. If the cable do not touch the bottom of the connector,
the keyboard function will be rendered useless.

3. The cable of the keyboard are fragile and could be
damaged. Be careful when pulling out the cable.

1070 Backup battery

v “1010 Battery assembly” on page 57

v “1060 Keyboard” on page 61

CAUTION:
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type
recommended by the manufacturer. Dispose of used
batteries according to manufacturer’s instruction.

Safety Notice 4

Translation in ″Safety Notices: Multi-lingual
Translations″ section: The backup battery is a
lithium battery and can cause a fire, an explosion, or
severe burns. 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 of an
incorrect battery can result in ignition or explosion of
the battery. Replacement batteries can be ordered
from IBM or IBM Authorized Dealers.

1080 Middle cover

v “1010 Battery assembly” on page 57

v “1060 Keyboard” on page 61

MT 2656, 2657, 2676

63

1

2

3

Step Size (Quantity) Color Torque

2 M2.5 x L10 (1) Black 3.2 kgf-cm

3 M2.5 x L10 (1) Black 3.2 kgf-cm

64 ThinkPad R30/R31 HMM

1090 LCD assembly

v “1010 Battery assembly” on page 57

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

1

2

3

MT 2656, 2657, 2676 65

Note: Release the gray cable, which is the main antenna

from the system.

4

4

Step Size (Quantity) Color Torque

4 M2.5 x L10 (4) Black 3.2 kgf-cm

5 M2.5 x L5 (1) Silver 3.2 kgf-cm

5

6

1100 Keyboard bezel

v “1010 Battery assembly” on page 57

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

66 ThinkPad R30/R31 HMM

1

Step Size (Quantity) Color Torque

1 M2.5 x L10 (7) Black 3.2 kgf-cm

2

MT 2656, 2657, 2676 67

CAUTION:
The keyboard bezel has several latches. When
removing the keyboard bezel from the bottom cover,
gently release these latches, then raise the side of the
keyboard bezel facing the palm rest to remove it. Be
careful not to break the latches.

1110 PCMCIA holder

v “1010 Battery assembly” on page 57

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1100 Keyboard bezel” on page 66

1

2

Step Size (Quantity) Color Torque

2 M2 x L6 (3) Silver 1.6 kgf-cm

68 ThinkPad R30/R31 HMM

3

Note: Before removing and replacing the PCMCIA holder,

make sure that the PCMCIA cards are removed and
the eject levers are sticking out.

1120 Auxiliary Antenna

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1100 Keyboard bezel” on page 66

1

Step Size (Quantity) Color Torque

1 M2 x L4(1) Silver 2.5 kgf-cm

MT 2656, 2657, 2676 69

1120 Speaker

v “1010 Battery assembly” on page 57

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1100 Keyboard bezel” on page 66

2

Step Size (Quantity) Color Torque

2 M2.5 x L4(1) Black 2.5 kgf-cm

1

1140 CPU spring

v “1010 Battery assembly” on page 57

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1100 Keyboard bezel” on page 66

70 ThinkPad R30/R31 HMM

1

Step Size (Quantity) Color Torque

1 M2.5 x L5 (2) Silver 3.2 kgf-cm

1150 Fan assembly

v “1010 Battery assembly” on page 57

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1100 Keyboard bezel” on page 66

v “1140 CPU spring” on page 70

2

1

MT 2656, 2657, 2676 71

3

Step Size (Quantity) Color Torque

3 M2.5 x L5 (2) Silver 3.2 kgf-cm

1160 System board

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1040 Hard disk drive assembly” on page 60

v “1050 CD-ROM assembly” on page 61

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1100 Keyboard bezel” on page 66

v “1120 Speaker” on page 70

4

72 ThinkPad R30/R31 HMM

1

Step Size (Quantity) Color Torque

1 M2.5 x L10(3) Silver 3.2 kgf-cm

Notes:

1. When removing the system board from the bottom
cover, gently raise the side of the system board facing
the rear I/O ports; then pull out the system board.

1170 Modem Cable (with Combo card)

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1040 Hard disk drive assembly” on page 60

v “1050 CD-ROM assembly” on page 61

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

MT 2656, 2657, 2676

73

v “1090 LCD assembly” on page 65

v “1100 Keyboard bezel” on page 66

v “1120 Speaker” on page 70

v “1160 System board” on page 72

1180 Modem Card (without Combo card)

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1100 Keyboard bezel” on page 66

74 ThinkPad R30/R31 HMM

1

Step Size (Quantity) Color Torque

1 M2.5 x L5 (2) Silver 3.2 kgf-cm

1190 Hard disk drive bezel

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1040 Hard disk drive assembly” on page 60

v “1050 CD-ROM assembly” on page 61

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1100 Keyboard bezel” on page 66

v “1120 Speaker” on page 70

v “1160 System board” on page 72

MT 2656, 2657, 2676

75

1

Step Size (Quantity) Color Torque

1 M2 x L6 (2) Silver 1.6 kgf-cm

1200 CD-ROM chassis

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1040 Hard disk drive assembly” on page 60

v “1050 CD-ROM assembly” on page 61

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1100 Keyboard bezel” on page 66

v “1120 Speaker” on page 70

v “1150 Fan assembly” on page 71

v “1160 System board” on page 72

v “1190 Hard disk drive bezel” on page 75

v “1170 Modem Cable (with Combo card)” on page 73

76 ThinkPad R30/R31 HMM

1

2

Step Size (Quantity) Color Torque

2 M2.5 x L5 (3) Silver 3.2 kgf-cm

1210 LCD bezel assembly (13.3″)

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1060 Keyboard” on page 61

MT 2656, 2657, 2676

77

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

2

3

Step Size (Quantity) Color Torque

2 M2 x L4(2) Silver 2.5 kgf-cm

3 M2.5 x L6(2) Black 2.5 kgf-cm

1

7

4

6

5

Note: When removing the LCD, take note of the following:

3

3

78 ThinkPad R30/R31 HMM

v Be careful not to scratch the LCD bezel when

removing the screw mylars.

v The LCD bezel has several latches. Release

these latches; then remove the LCD bezel. Be
careful not to break these latches.

v Gently push the two LCD latches outward to

remove the LCD bezel.

1220 LCD Inveter (13.3″)

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1210 LCD bezel assembly (13.3″)” on page 77

1

Step Size (Quantity) Color Torque

1 M2 x L10(4) Black 2.5 kgf-cm

1230 LED board (13.3″)

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1210 LCD bezel assembly (13.3″)” on page 77

MT 2656, 2657, 2676

79

2

3

1240 LCD bracket hinge assembly (13.3″)

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1210 LCD bezel assembly (13.3″)” on page 77

v “1220 LCD Inveter (13.3″)” on page 79

v “1230 LED board (13.3″)” on page 79

1

4

80 ThinkPad R30/R31 HMM

1

Step Size (Quantity) Color Torque

1 M2 x L4 (4) Silver 2.5 kgf-cm

1250 LCD FPC assembly (13.3″)

v “1010 Battery assembly” on page 57

v “1020 Mini-PCI cover and Mini-PCI card” on page 57

v “1030 Memory cover and Memory card” on page 59

v “1060 Keyboard” on page 61

v “1080 Middle cover” on page 63

v “1090 LCD assembly” on page 65

v “1210 LCD bezel assembly (13.3″)” on page 77

v “1220 LCD Inveter (13.3″)” on page 79

v “1230 LED board (13.3″)” on page 79

v “1240 LCD bracket hinge assembly (13.3″)” on page 80

MT 2656, 2657, 2676

81

1

Step Size (Quantity) Color Torque

1 M2 x L4(1) Silver 2.5 kgf-cm

2

1260 Wireless reassembly

v “1240 LCD bracket hinge assembly (13.3″)” on page 80

v “1230 LED board (13.3″)” on page 79

82 ThinkPad R30/R31 HMM

MT 2656, 2657, 2676 83

Locations

Front View

System-status indicators

Volume & mute buttons

TrackPoint

Rear View

Security keyhole

Power jack

Parallel port

Monitor connector

Modem connector

Bottom View

12

11

Ethernet connector

USB connector

Computer display

Power button

Ultrabay plus

S-Video out connector

1

2

9

10

9

8

1. Docking connector

2. Memory slot door

84 ThinkPad R30/R31 HMM

3

4

5

6

7

10

3. PC card slot

4. Stereo headphone jack

5. Microphone jack

6. Hard disk drive

7. Mini-PCI Card slot door

8. Infrared port

9. LCD latches

10. Built-in speakers

11. Battery pack

12. Battery pack latch

MT 2656, 2657, 2676

85

Switch Locations

SW3

1

1

Boot
Block
Enabled

1

Check
Passwo rd
Enabled

0

Pin3

Pin4

100

Boot
Block
Disabled

10

Check
Passwo rd
Disabled

86 ThinkPad R30/R31 HMM

Parts list

1

2

3

4

6

20

19

5

8

9

7

18

17

10

11

12

16

13

14

15

Note: The parts marked with asterisk are CRUs (customer

replaceable units.)

No. Description FRU No.

1 Hinge Cap 26P9722

2 Keyboard unit (“Keyboard” on page 93)

3 Middle Cover ASM WW 26P9727

4 KBD Bezel Asm. WW 46L5052

MT 2656, 2657, 2676 87

No. Description FRU No.

5 Antenna Kit 13.3″

Antenna Kit 14.1″

Antenna Aux

Antenna LCD

6 Cable Asm. kit , RJ11 and lid switch

RJ-11 Cable for CDC board model

RJ-11 Cable mini PCI combo board
model

Lid switch Cable

7 Planar P-III 1 GHz 12P3832

Planar P-III 1 GHz w/1394 12P3836

Planar Celeron 900MHz 12P3828

Planar Celeron 800MHz w/1394 12P3824

8 FAN Asm. 26P9723

9 PCMCIA Slot 26P9724

10 HDD w/tray & screws module IBM

Assy./10 GB

HDD w/tray & screws module HITACHI
/10 GB

HDD w/tray & screws module IBM /15GB08K9663*

26P9712

26P9711

27L0689

08K9796*

08K9798*

HDD w/tray & screws module HITACHI
/15 GB

HDD w/tray & screws module IBM /30GB08K9665*

HDD w/tray & screws module HITACHI
/30 GB

11 HDD Cover WW 26P9737

12 Lower Case w/ label WW 26P9729

Lower Case w/ label EMEA 26P9730

Lower Case w/ label IIPC 26P9731

Lower Case w/ label Korea 26P9732

Lower Case w/ label Taiwan 46L6338

Lower Case w/ label W/W-wireless 26P9733

Lower Case w/ label EMEA-wireless 26P9734

Lower Case w/ label IIPC-wireless 26P9735

Lower Case w/ label Korea-wireless 26P9736

Lower Case w/ label Taiwan-wireless 46L6339

13 Card ASM SoDIMM-64MB 19K4651*

Card ASM SoDIMM-128MB 19K4653*

Card ASM SoDIMM-256MB 19K4655*

14 802.11b/Modem combo card 26P8092

08K9664*

05K9666*

88 ThinkPad R30/R31 HMM

No. Description FRU No.

15 Mini-PCI / DIMM door kit 26P9739*

16 Battery Assy. (Ni-Mh)

Sanyo-W/W

Sanyo-Japan

Battery Assy. (Li-Ion)

Sanyo-W/W

Sanyo-Japan

Panasonic-W/W

Panasonic-Japan

17 Speaker Kit 02K5989

18 RTC Battery 11J8591

19 CD-ROM Module

TEAC

HLDS(LG)

DVD-ROM Module

HLDS(Hitachi)

CD–RW Module

SONY ( for WinXP)

TEACCD–RW / DVD Module

Toshiba

20 Modem CDC 26P8070

Rubber Kit

PCMCIA screw cap* 3

rubber foot * 3

LCD bezel screw cap (W/W) *4

IEEE-1394 dummy label

IEEE-1394 icon label

02K6827*

02K6835*

02K6822*

02K6830*

02K6824*

02K6832*

27L3436*

08K9545*

27L4236*

27L4231*

08K9644*

27L4249*

26P9742

MT 2656, 2657, 2676 89

No. Description FRU No.

Screw Kit

HDD COIN SCREW

M/B HEX SCREW

SCREW DIMM COVER STEEL

SCREW MACH PAN NYLOK
M2.0*13 NI

BH MSN+N SCREW M2.0*6

SCREW MACH FLAT M3*2.8

SCREW HDD M3*L4

WCH MSN+CZ SCREW M2.5*5

SCREW M2.5L10B 86.9A353100

SCREW M2.5*6

SCREW M2.4 WAFER NI

26P9741

LCD FRU

13.3-inch TFT:

1

3

2

3

4

6

5

7

90 ThinkPad R30/R31 HMM

8

No. Description FRU No.

1 13.3″ LCD Bezel 26P9715

2 LCD Panel Asm (13.3″ TFT)

Sanyo

LG

3 13.3″ Hinge-Bracket Asm (R,L) 26P9720

4 LCD-Invertor / LED card (for 13.3″ &

14.1″ TFT)

5 LCD cable Asm. 27L0687

6 Antenna Kit 13.3″ LCD

Antenna w/ 13.3″ LCD

Antenna aux

7 LCD Rear Cover Asm for 13.3″/14.1″ (

for Wireless model )

13.3″/14.1″ LCD rear cover

13.3″/14.1″ LCDPanel W/Wireless

IBM Logo

LCD Rear Cover Asm for 13.3″/14.1″

13.3″/14.1″ LCD rear cover

13.3″/14.1″ LCDPanel W/O Wireless

IBM Logo

8 LCD Hinge Cap 26P9722

LG/IBM Logo Kit

for LCD Rear Cover

for KBD Bezel

11P8212

11P8220

26P8139

26P9712

26P9709

26P9707

08K5860

MT 2656, 2657, 2676 91

14.1-inch TFT:

3

1

3

2

4

6

5

7

8

No. Description FRU No.

1 14.1″ LCD Bezel (for W/W) 26P9713

2 LCDPanel Asm. (14.1″ TFT)

Hyundai

Samsung

3 14.1″ Hinge-Bracket Asm (R,L) 26P9719

4 LCD-Invertor / LED card (for 13.3″ &

14.1″ TFT)

5 LCD cable Asm. 27L0686

6 Antenna Kit 14.1″ LCD

Antenna w/ 14.1″ LCD

Antenna aux

7 LCD Rear Cover Asm for 13.3″/14.1″

(for W/W)

13.3″/14.1″ LCD rear cover

13.3″/14.1″ LCDPanel W/Wireless

IBM Logo

11P8214

46L2356

26P8139

26P9711

26P9709

92 ThinkPad R30/R31 HMM

No. Description FRU No.

LCD Rear Cover Asm for 13.3″/14.1″
(for W/O W)

13.3″/14.1″ LCD rear cover

13.3″/14.1″ LCDPanel W/O Wireless

IBM Logo

8 LCD Hinge Cap Asm. 26P9722

LG/IBM Logo Kit

for LCD Rear Cover

for KBD Bezel

26P9707

08K5860

Keyboard

Description Vendor FRU No.

KBD ASM US English NMB 12P4260*

KBD ASM Canadian French NMB 12P4262*

KBD ASM German NMB 12P4264*

KBD ASM UK English NMB 12P4266*

KBD ASM French NMB 12P4268*

KBD ASM Dutch NMB 12P4270*

KBD ASM Swedish/Finnish NMB 12P4272*

KBD ASM Norwegian NMB 12P4274*

KBD ASM Danish NMB 12P4276*

KBD ASM Italian NMB 12P4278*

KBD ASM European Spanish NMB 12P4280*

KBD ASM Belgian NMB 12P4282*

KBD ASM Switzerland NMB 12P4284*

KBD ASM Portuguese NMB 12P4286*

KBD ASM Russian NMB 12P4290*

KBD ASM Slovakian NMB 12P4306*

KBD ASM Slovenian NMB 12P4304*

KBD ASM Traditional Chinese NMB 12P4310*

KBD ASM Turkish NMB 12P4296*

KBD ASM Arabic NMB 12P4288*

KBD ASM Hebrew NMB 12P4292*

KBD ASM Polish NMB 12P4294*

KBD ASM Czech NMB 12P4298*

KBD ASM Hungarian NMB 12P4300*

KBD ASM Greek NMB 12P4302*

KBD ASM Japan NMB 12P4308*

KBD ASM Korea NMB 12P4312*

KBD ASM La Spanish NMB 12P4314*

MT 2656, 2657, 2676 93