Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 111.
First Edition (January 2000)
The following paragraph does not apply to the United
Kingdom or any country where such provisions are
inconsistent with local law:
INTERNATIONAL BUSINESS MACHINES
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 disclaimer 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 to the products or the programs
described in this publication at any time.
It is possible that this publication may contain references
to, or information about, IBM products (machines and
programs), programming, or services that are not
announced in your country. Such references or
information must not be construed to mean that IBM
intends to announce such IBM products, programming, or
services in your country.
Requests for technical information about IBM products
should be made to your IBM authorized dealer or your IBM
marketing representative.
Copyright International Business Machines
Corporation 2000. All rights reserved. Note to U.S.
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.
Diskette fixes are customer installable. The diskette
fixes are located on the PC Company Bulletin Board
Service (BBS). The direct phone line for modem
connection is 919-557-0001 or tieline 255-0001.
Advise customers to contact the PC Company
HelpCenter at 800-772-2227 if they need assistance in
obtaining or installing any diskette fixes.
Customers in Canada should call IBM HelpPC at
800-565-3344 for assistance or down-load information.
The Canadian BBS phone numbers are:
Montreal 514-938-3022
Toronto 905-316-4255
Vancouver 604-664-6464
Winnipeg 204-934-2735
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:
If you are instructed to replace a FRU and that
does not correct the problem, reinstall the original
FRU before you continue.
Some computers have both a processor board and a
system board. If you are instructed to replace either
the processor board or the system board, and the first
board that you replaced does not correct the problem,
reinstall the original board, then replace the other
(processor or system) board.
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.
Copyright IBM Corp. 2000
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
overwritten 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.
The following example shows which digits display the
shorter POST error messages and also defines the SCSI
information in an eight-digit error message.
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.
2ThinkPad 570 and 570E Hardware Maintenance
Manual
Device Code │ Logical Unit Number (SCSI)
Drive and Diskette Compatibility Matrix
The following table provides identification information for
3.5-inch drives.
Diskette
Drive
3.5-Inch - 1.44MB1.44 on the eject button
3.5-Inch - 2.88MB2.88 on the eject button
Identifying
Mark
The following table provides compatibility information for
3.5-inch diskettes and 3.5-inch diskette drives.
Diskette
Capacity
1.0MBRead/WriteRead/Write
2.0MBRead/WriteRead/Write
4.0MBNot CompatibleRead/Write
1.44MB
Drive
2.88MB
Drive
The following table provides identification information for
5.25-inch diskette drives.
Diskette
Drive
5.25-Inch - 360KB (External)Asterisk on bezel
5.25-Inch - 1.2MB (Internal)1.2 on the eject button
Identifying
Mark
The following table provides compatibility information for
5.25-inch diskettes and 5.25-inch diskette drives.
Diskette
Capacity
360KBRead/WriteRead/Write
1.2MBNot CompatibleRead/Write
360KB
Drive
1.2MB
Drive
Note: A 360KB diskette written to or formatted on a
1.2MB drive can be read reliably only on a 1.2MB
drive.
Introduction 3
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 languages.
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, muß sichergestellt
werden, daß keine Schrauben, Federn oder andere
Kleinteile fehlen oder im Gehäuse vergessen wurden.
Der Computer muß geschüttelt und auf
Klappergeräusche geprüft werden. Metallteile oder
-splitter können Kurzschlüsse erzeugen.
Prima di accendere l'elaboratore dopo che 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.
4ThinkPad 570 and 570E Hardware Maintenance
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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.
Alcune batterie di riserva contengono una piccola
quantità di nichel e cadmio. Non smontarle, ricaricarle,
gettarle nel fuoco o nell'acqua né cortocircuitarle.
Smaltirle secondo la normativa in vigore (DPR 915/82,
successive disposizioni e disposizioni locali). Quando
si sostituisce la batteria dell'RTC (real time clock) o la
batteria di supporto, utilizzare soltanto i tipi inseriti
nell'appropriato Catalogo parti. L'impiego di una
batteria non adatta potrebbe determinare l'incendio o
l'esplosione della batteria stessa.
Algunas baterías de reserva contienen una pequeña
cantidad de níquel y cadmio. No las desmonte, ni
recargue, ni las eche al fuego o al agua ni las
cortocircuite. Deséchelas tal como dispone la
normativa local. Utilice sólo baterías que se
encuentren en la lista de piezas. La utilización de una
batería no apropiada puede provocar la ignición o
explosión de la misma.
Introduction 5
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 batería no apropiada
puede provocar la ignición o explosión de la misma.
6ThinkPad 570 and 570E Hardware Maintenance
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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 brûler et n'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 o l'esplosione della batteria
stessa.
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.
Introduction 7
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 après le lavage.
Die Leuchtstoffröhre im LCD-Bildschirm enthält
Quecksilber. Bei der Entsorgung die örtlichen
Bestimmungen für Sondermüll beachten. Der
LCD-Bildschirm besteht aus Glas und kann
zerbrechen, wenn er unsachgemäß behandelt wird
oder der Computer auf den Boden fällt. Wenn der
Bildschirm beschädigt ist und die darin befindliche
Flüssigkeit in Kontakt mit Haut und Augen gerät,
sollten die betroffenen Stellen mindestens 15 Minuten
mit Wasser abgespült und bei Beschwerden
anschließend ein Arzt aufgesucht werden.
Nel caso che caso l'LCD si dovesse rompere ed il
liquido in esso contenuto entrasse in contatto con gli
occhi 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 algún síntoma del fluido despues de
lavarse.
8ThinkPad 570 and 570E Hardware Maintenance
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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 Kurzschluß 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.
Introduction 9
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 muß 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.
10ThinkPad 570 and 570E Hardware Maintenance
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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:
Observe good housekeeping in the area of the
machines during and after maintenance.
When lifting any heavy object:
1. Ensure you can stand safely 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.
Do not perform any action that causes hazards to the
customer, or that makes the equipment unsafe.
Before you start the machine, ensure that other
service representatives and the customer's personnel
are not in a hazardous position.
Place removed covers and other parts in a safe
place, away from all personnel, while you are
servicing the machine.
Keep your tool case away from walk areas so that
other people will not trip over it.
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.
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.
Do not wear jewelry, chains, metal-frame eyeglasses,
or metal fasteners for your clothing.
Attention: Metal objects are good electrical
conductors.
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.
After service, reinstall all safety shields, guards,
labels, and ground wires. Replace any safety device
that is worn or defective.
Reinstall all covers correctly before returning the
machine to the customer.
Introduction
11
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.
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.
Do not work alone under hazardous conditions or
near equipment that has hazardous voltages.
Disconnect all power before:
– Performing a mechanical inspection
– Working near power supplies
– Removing or installing main units
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.
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.
– 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.
12ThinkPad 570 and 570E Hardware Maintenance
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Regularly inspect and maintain your electrical hand
tools for safe operational condition.
Do not use worn or broken tools and testers.
Never assume that power has been disconnected
from a circuit. First, check that it has been
powered-off.
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.
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.
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.)
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
you can continue without first correcting the problem.
Consider these conditions and the safety hazards they
present:
Electrical hazards, especially primary power (primary
voltage on the frame can cause serious or fatal
electrical shock).
Explosive hazards, such as a damaged CRT face or
bulging capacitor
Mechanical hazards, such as loose or missing
hardware
Introduction
13
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.
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.
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:
Keep the parts in protective packages until they are
inserted into the product.
Avoid contact with other people.
Wear a grounded wrist strap against your skin to
eliminate static on your body.
Prevent the part from touching your clothing. Most
clothing is insulative and retains a charge even when
you are wearing a wrist strap.
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.
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.
Introduction 15
Laser compliance statement
Some IBM Personal Computer models are equipped from
the factory with a CD-ROM drive. CD-ROM drives are
also sold separately as options. The CD-ROM drive is a
laser product. The CD-ROM 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 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 a CD-ROM 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
16ThinkPad 570 and 570E Hardware Maintenance
Manual
El uso de controles o ajustes o la ejecución de
procedimientos distintos de los aquí especificados
puede provocar la exposición a radiaciones
peligrosas.
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 ! Ne nézzen 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.
Radiación láser al abrir. No mire fijamente ni examine
con instrumental óptico el haz de luz. Evite la
exposición directa al haz.
Introduction
17
18ThinkPad 570 and 570E Hardware Maintenance
Manual
Read this first
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.
Read this first
Before you go to the checkout guide, be sure to read this
section.
Important notes
Only certified trained personnel should
service the computer.
Read the entire FRU removal and replacement
page before replacing any FRU.
Use new nylon-coated screws when you
replace FRUs.
Be extremely careful during such write
operations 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 might be
overwritten.
Replace FRUs only for the correct model.
When you replace a FRU, make sure the model
of the machine and the FRU part number are
correct by referring to the FRU parts list.
A FRU should not be replaced because of a
single, unreproducible failure. Single failures
can occur for a variety of reasons that have
nothing to do with a hardware defect, such as
cosmic radiation, electrostatic discharge, or
software errors. Consider replacing a FRU only
when a problem recurs. If you suspected that a
FRU is defective, clear the error log and run the
test again. Do not replace any FRUs if log errors
do not reappear.
Be careful not to replace a nondefective FRU.
What to do first: When you do return a FRU, you
must include the following information in the parts
exchange form or parts return form that you attach to it:
1. Name and phone number of servicer
2. Date of service
3. Date on which the machine failed
4. Date of purchase
5. Failure symptoms, error codes appearing on the
display, and beep symptoms
Copyright IBM Corp. 2000
19
Read this first
6. Procedure index and page number in which the
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
Before checking problems with the computer, determine
whether the damage is covered under the warranty by
referring to the following:
Note 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 might
indicate that the system was subjected to stress
beyond normal use.
broken pins, or broken connectors caused by
excessive force.
Damage caused by liquid spilled into the system.
Damage caused by the improper insertion of a
PC Card or the installation of an incompatible
card.
Damage caused by foreign material in the
diskette drive.
Diskette drive damage caused by pressure on
the diskette drive cover or by the insertion of a
diskette with multiple labels.
Damaged or bent diskette eject button.
Fuses blown by attachment of a nonsupported
device.
Forgotten computer password (making the
computer unusable).
20ThinkPad 570 and 570E Hardware Maintenance
Manual
Read this first
Important
The following symptoms might indicate damage
caused by nonwarranted activities:
Missing parts might be a symptom of
unauthorized service or modification.
Hard disk drive spindles can become noisy from
being subjected to excessive force or from being
dropped.
I9990303 errors can be caused by exposure to
strong magnetic fields.
*
General descriptions
21
Related service information
Related service information
This section provides information about the following:
“Reset switch”
“Service Web site”
“Passwords”
Power management features
Reset switch
The Reset switch resets the system (regardless of the
microcode status) and forces the power off. Use this
pushbutton to power off when power is not completely off
or the microcode is in a hung state. For its location, see
“Front view” on page 94.
Service Web site
When the latest maintenance diskette and the system
program service diskette are available, a notice will be
posted on http://pccbbs.raleigh.ibm.com/
Passwords
As many as three passwords may be needed for any
ThinkPad computers: the power-on password (POP), the
hard disk password (HDP), and the supervisor password
(PAP).
When the power-on password (POP), the hard disk
password (HDP), or the supervisor password (PAP) is
used, the following situations may occur:
If the PAP is used, the HDP is enabled
automatically, but no HDP prompt appears. The HDP
is set the same as the PAP.
If the POP is the same as the HDP, the POP
prompt appears, but the HDP prompt does not
appear.
If the POP is not the same as the HDP, both
prompts appear.
If a ThinkPad computer has an extra bay, it can support
more than two HDPs. Then the following situations may
occur:
If the POP is the same as one of the HDPs (HDP-1
or HDP-2), a POP prompt appears. The passwords
are different.
If the POP is not the same as either of the HDPs
(HDP-1 or HDP-2), both prompts appear.
If the PAP is used, the HDP-1 or the HDP-2 is
automatically enabled, but the HDP prompt does not
appear. The HDP-1 or the HDP-2 are then set to the
same password as the PAP.
22ThinkPad 570 and 570E Hardware Maintenance
Manual
Related service information
Supervisor and hard disk passwords: The
supervisor password (PAP) and the hard disk password
(HDP) are security features that are used to protect the
system and the hard disk data from unauthorized access.
No overriding capability is provided. If only a hard disk
password is set, you must get the password from its owner
in order to run diagnostic tests and perform service. If
both the supervisor password and the hard disk password
are set, you can enter Easy-Setup by pressing the Enter
key or by entering the power-on password at the
supervisor password prompt. In this case, the Password,Start up, Network, and Initialize or Asset ID (for some
models) icons cannot be selected.
Note: The supervisor password and the hard disk
password cannot be replaced if they are forgotten.
If the customer forgets the supervisor password,
the system board must be replaced. If the
customer forgets the hard disk password, the hard
disk drive must be replaced.
How to remove the power-on passwords:
If only the power-on password is set, do the following to
remove it:
1. Turn off the computer.
2. Remove the DIMM cover from the bottom of the
computer.
3. Short-circuit the two password pads or put the jumper
on the pins.
For the location of the password pads or the jumper,
see “Password pads” on page 98.
4. Turn on the computer and wait until the POST ends.
After the POST ends, the password prompt does not
appear. The power-on password has been removed.
5. Reinstall the DIMM cover.
If both the power-on password and the supervisor
password are set, do the following to remove them:
1. Power on the computer by pressing and holding F1.
2. Enter the supervisor password. The Easy-Setup
menu appears.
3. Click the Password icon.
4. Click the Power on icon.
5. Enter the supervisor password, and press the Spacebar.
6. Press Enter twice.
7. Click Exit; then click Restart.
The power-on password has been removed.
General descriptions
23
Related service information
Power management features
To reduce power consumption, the computer has three
power management modes: standby, suspend, and
hibernation.
Standby mode: In standby mode, the following
occurs:
The LCD backlight turns off.
The hard disk drive motor stops.
The speaker is muted.
Note: Standby mode in Windows 98 is called suspend
mode in Windows 95.
To enter standby mode, press Fn + F3. To end standby
mode and resume normal operation, press any key.
Suspend mode: When the computer enters suspend
mode, the following events occur in addition to what occurs
in standby mode:
The LCD is powered off.
The hard disk drive is powered off.
The CPU stops.
Suspend mode in Windows 95 is called standby mode in
Windows 98.
You can cause the computer to enter suspend mode by
doing any of the following:
Press Fn+F4.
Close the LCD cover. (To prevent the computer from
entering suspend mode when the LCD is closed, click
Will not suspend even if LCD is closed in the
Power Management Properties window. Then only
the LCD turns off.)
Select the Suspend button in the Fuel Gauge
program.
In certain circumstances, the computer goes into suspend
mode automatically:
If a “suspend time” has been set on the timer, and the
user does not do any operation with the keyboard, the
TrackPoint, the hard disk, the parallel connector, or
the diskette drive within the time set.
If the ac adapter is plugged in.
If the battery indicator blinks orange, indicating that
the battery power is low. (Alternatively, if Hibernate
when battery becomes low has been selected in the
“Power Management Properties” window, the
computer goes into hibernation mode.)
Note: Even if you don't set the low-battery alarm, the
charge indicator lets you know that the battery is
low, and then the ThinkPad automatically enters
24ThinkPad 570 and 570E Hardware Maintenance
Manual
Related service information
the power-saving mode. This default low-battery
behavior is independent of the operating system:
so if you have set the low-battery alarm, the
computer may not do what you specified. It
chooses either your setting or the default setting,
whichever is appropriate.
Any one of the following events causes the computer to
resume operation from suspend mode:
The Fn key is pressed.
The LCD cover is opened.
The ring indicator (RI) is signaled by a serial device
or a PC Card device.
The power switch is turned on.
The resume timer is set. In Windows 98, the
Scheduled Tasks setting has priority over the
Resume on timer selection in the “Power
Management Properties” window.
Note: The computer does not accept any input
immediately after it enters suspend mode.
Therefore, wait a few seconds before taking
any action to reenter operation mode.
Hibernation mode
Note for Windows NT
A Windows NT user cannot create a hibernation file in
a Windows NT system that uses the NTFS format
system, the Windows NT default format. If you want
to use hibernation mode, you should reinstall Windows
NT with a FAT format system.
In hibernation mode, the following occurs:
The system status, RAM, VRAM, and setup data are
stored on the hard disk.
The system is powered off.
Notes
1. In the ThinkPad Configuration program, the
computer can be set to suspend/hibernate
while docked.
2. The computer cannot enter hibernation mode
when it is powered with ac power and a
communication PC Card is used.
Any one of the following events causes the computer to
enter hibernation mode:
The Fn + F12 keys are pressed.
The Hibernation button is selected in the Fuel-Gauge
program.
The power switch is turned off and the mode is set to
Power switch mode [Hibernation].
General descriptions
25
Related service information
The timer conditions are satisfied in suspend mode
(for operating systems other than Windows 98).
A critically low battery condition occurs and the mode
is set to Hibernate when battery becomes low.
When the power is turned on, the computer leaves
hibernation mode and resumes operation. The hibernation
file in the boot record on the hard disk drive is read, and
system status is restored from the hard disk drive.
26ThinkPad 570 and 570E Hardware Maintenance
Manual
Checkout guide
Checkout guide
Use the following procedures as a guide in identifying and
correcting problems with the ThinkPad computer.
Note: The diagnostic tests are intended to test only IBM
products. The use of non-IBM products, prototype
cards, or modified options can lead to false
indications of errors and invalid system responses.
1. Identify the failing symptoms in as much detail as
possible.
2. Verify the symptoms. Try to re-create the failure by
running the diagnostic test or by repeating the
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 included in
PC-Doctor. This section is an overview of the procedure.
For details that depend on model-unique functions, refer to
“Product overview” on page 35.
For some possible configurations of the computer,
PC-Doctor might not run correctly. To avoid this problem,
you need to initialize the computer setup by Easy-Setup
before you run PC-Doctor. In the Easy-Setup screen, click
Config and Initialize.
Note: When you initialize the computer configuration,
some devices are disabled, such as the serial port.
If you test one of these devices, you need to
enable it by using PS2.EXE.
To run the test, do as follows:
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, click the left
button.
1. Insert the PC-Doctor disk into the diskette drive; then
power on the computer.
If the computer cannot be powered on, go to “Power
system checkout” on page 29, and check the power
sources.
If an error code appears, go to “Symptom-to-FRU
index” on page 42.
In the first screen, select the model and press Enter.
Follow the instructions on the screen.
2. The PC-Doctor main panel appears.
3. Select Diagnostics with the arrow keys, and press
Enter.
A pull-down menu appears. (Its exact form depends
on the model.)
General descriptions
27
Checkout guide
The options on the test menu are as follows:
DiagnosticsInteractive Tests
Run Normal Test
Run Quick Test
CPU/Coprocessor
Systemboard
Video Adapter
Serial Ports
Fixed Disks
Diskette Drives
Other Devices
Memory Test – Full
Memory Test –
Quick
Notes:
In the Keyboard test in Interactive Tests, the
Fn key is scanned only once. Each key should
be held down for at least 2 seconds; otherwise, it
cannot be sensed.
5. Follow the instructions on the screen. If there is a
problem, PC-Doctor shows some messages.
6. To exit the test, select Quit — Exit Diag.
To cancel the test, press Esc.
Detecting system information with
PC-Doctor
PC-Doctor can detect the following system information:
Hardware Info:
System Configuration
Memory Contents
Physical Disk Driver
Logical Disk Driver
28ThinkPad 570 and 570E Hardware Maintenance
Manual
Checkout guide
VGA Information
IDE Drive Info
PCI Information
PNPISA Info
SMBIOS Info
FRU Info
Utility:
Run External Tests
Surface Scan Hard Disk
Benchmark System
DOS Shell
Tech Support Form
Battery Rundown
View Test Log
Print Log
Save Log
Full Erase Hard Drive
Quick Erase Hard Drive
Power system checkout
To verify the symptom of a problem, 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, see the appropriate one
of the following power supply checkouts:
“Checking the ac adapter”
“Checking operational charging” on page 30
“Checking the battery pack” on page 30
“Checking the backup battery” on page 31
Checking the ac adapter: You are here because
the computer fails only when the ac adapter is used:
If the power problem occurs only when the port
replicator is used, replace the port replicator.
If the power-on indicator does not turn on, check the
power cord of the ac adapter for correct continuity
and installation.
If the computer does not charge during operation, go
to “Checking operational charging” on page 30.
1. 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:
General descriptions
29
Checkout guide
(16 - 10 V)
PinVoltage (V dc)
1+15.5 to +17.0
2Ground
If the voltage is not correct, replace the ac adapter.
If the voltage is acceptable, do the following:
Replace the system board.
If the problem persists, go to “Product overview”
on page 35.
Note: Noise from the ac adapter does not always indicate
a defect.
Checking operational charging: To check
operational charging, use a discharged battery pack or a
battery pack 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 pack
and let it return to room temperature. Reinstall the battery
pack. If the charge indicator or icon still does not turn on,
replace the battery pack.
If the charge indicator still does not turn on, replace the
system board. Then reinstall the battery pack. If the
reinstalled battery pack is not charged, go to the next
section.
Checking the battery pack: Battery charging
does not start until the Fuel Gauge shows that less than
95% of the total power remains; under this condition the
battery pack can charge to 100% of its capacity. This
protects the battery pack from being overcharged or from
having a shortened life.
Note: The battery pack might not be able to charge when
it is hot. If it is hot, remove it from the computer
and after it cools down, reinstall and recharge it.
To check the battery pack, do the following:
1. Power off the computer.
2. Remove the battery pack and measure the voltage
between battery terminals 1 (+) and 4 (−). See the
following figure:
30ThinkPad 570 and 570E Hardware Maintenance
Manual
Checkout guide
TerminalVoltage (V dc)
1+ 0 to + 12.6
4Ground (−)
3. If the voltage is less than +11.0 V dc, the battery pack
has been discharged. Recharge the battery pack.
Note: It takes at least 3 hours to recharge the
battery pack.
If the voltage is still less than +11.0 V dc after
recharging, replace the battery.
4. If the voltage is more than +11.0 V dc, measure the
resistance between battery terminals 3 and 4. The
resistance must be 4 to 30 K ohm.
If the resistance is not correct, replace the battery
pack. If the resistance is correct, replace the system
board.
Checking the backup battery: Do the following:
1. Power off the computer, and unplug the ac adapter
from it.
2. Turn the computer upside down.
3. Remove the backup battery (see “Checking the
battery pack” on page 30).
Note
Removing the backup battery will cause loss of
configuration data unless the battery pack is
installed.
4. Measure the voltage of the backup battery. See the
following figure.
WireVoltage (V dc)
Red+2.5 to +3.2
BlackGround
General descriptions31
Checkout guide
If the voltage is correct, replace the system board.
If the voltage is not correct, replace the backup
battery.
If the backup battery discharges quickly after
replacement, replace the system board.
32ThinkPad 570 and 570E Hardware Maintenance
Manual
ThinkPad 570 and 570E
ThinkPad 570 and 570E
This chapter includes the descriptions for the ThinkPad
570 series computer.
Infrared transferIrDA 1.1
PC CardOne Type-III or two Type-II
Ac adapter56-watt type
UrtraBase
(Option)
1.44 MB (3-mode), 3.5-inch
4.0 GB, 2.5-inch, IDE
interface
6.4 GB, 2.5-inch, IDE
interface
10 GB, 2.5-inch, IDE interface
570E
6.0 GB, 2.5-inch, IDE
interface
12.0 GB, 2.5-inch, IDE
interface
Line-in
Headphone
Microphone
Mouse
Parallel
Expansion connector
Serial
USB
RJ11
Software control volume
CD-ROM/DVD drive
– 24 x CD-ROM drive
– 2 x DVD drive (570 only)
– 6 x DVD drive (570E
only)
Audio
– Internal monaural
speaker
36ThinkPad 570 and 570E Hardware Maintenance
Manual
Product overview
Status indicators
The system status indicators show the current computer
status in different colors (green or orange):
SymbolColorMeaning
1BatteryGreenThe battery is fully charged.
OrangeThe battery is charging.
Blinking
orange
2Suspend
Mode
3Hard Disk
In Use
4Numeric
Lock
5Caps
Lock
6Scroll
Lock
7Power OnGreenPower on
GreenSuspend mode
Blinking
green
OrangeData is read from or written
GreenThe numeric keypad on the
GreenCaps Lock mode is enabled.
GreenArrow keys can be used as
The battery needs charging.
Entering suspend mode
to the hard disk drive.
keyboard is enabled.
screen-scroll function keys.
ThinkPad 570 and 570E37
Product overview
Structure
The following illustration shows the overall organization if
the FRUs.
38ThinkPad 570 and 570E Hardware Maintenance
Manual
Product overview
The following table shows the test for each FRU.
FRUApplicable test
System
board
PowerDiagnostics --> Battery
LCD unit 1. Diagnostics --> Video Adapter
Modem1. Make sure the modem sets up
Audio1. Interactive Tests --> Monaural
Speaker System beeper:
PC Card
slots
Keyboard1. Diagnostics --> Keyboard
TrackPoint
or
pointing
device
Hard disk
drive
1. Diagnostics -->
CPU/Coprocessor
2. Diagnostics --> Systemboard
2. Interactive Tests --> Video
correctly.
2. Replacing the modem jack and
modem card one at a time, run
the modem test in Other Devices
(Diagnostics)
Speaker
2. Diagnostics --> Systemboard
– Interactive Tests --> Internal
Speaker
Speaker of the UltraBase:
– Interactive Tests -->
Monaural Speaker
Diagnostic --> Systemboard
2. Interactive Test --> Keyboard
If the TrackPoint does not work, check
the configuration in the ThinkPad
Configuration program. If the
TrackPoint is disabled, select Enable
to enable it.
After you use the TrackPoint, the
pointer drifts on the screen for a short
time. This drift can occur when a
slight, steady pressure is applied to the
TrackPoint pointer. This symptom is
not a hardware problem. No service
action necessary if the pointer stops
after a short time.
If this does not correct the TrackPoint
problem, continue with the following.
Interactive Tests --> Mouse
Diagnostics --> Fixed Disks
ThinkPad 570 and 570E39
Product overview
FRUApplicable test
Diskette
drive
CD-ROM
or DVD
drive (in
the
UltraBase)
JoystickInteractive Tests --> Joystick
Memory1. If a DIMM is installed, remove it
Fan1. Turn on the computer and check
1. Diagnostics --> Diskette Drive
2. Interactive Tests --> Diskette
Interactive Tests --> CD-ROM/DVD
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).
the air turbulence at the louver
near the power switch.
2. Run the fan test in Other Devices
(Diagnostics)
40ThinkPad 570 and 570E Hardware Maintenance
Manual
Product overview
Fn key combinations
The following table shows the function of each combination
of Fn with a function key.
The Fn key works independently from the operating
system. The operating system obtains the status through
the system management interface to control the system.
Key
combination
Fn + F1Reserved.
Fn + F2Turn the Fuel Gauge display on or
Fn + F3Turn standby mode on.
Fn + F4Turn suspend mode on.
Fn + F5Reserved.
Fn + F6Reserved.
Fn + F7Switch between the LCD and an
Fn + F8Turn screen expansion on or off.
Fn + F9Reserved.
Fn + F10Reserved.
Fn + F11Switch the power management
Fn + F12Turn hibernation mode on.
Fn + Pg UpIncrease the volume, or unmute.
Fn + Pg DnDecrease the volume, or unmute.
Fn +
Backspace
Description
off.
external monitor.
(There is no symbol on the key.)
mode: High performance,
automatic, or customized.
Note: In Windows 98, only the
CPU speed is changed.
Mute.
Note: To turn on the sound,
press Fn + PgUp or Fn + PgDn.
ThinkPad 570 and 570E41
Symptom-to-FRU index
Symptom-to-FRU index
The symptom-to-FRU index lists symptoms and errors and
their possible causes. The most likely cause is listed first,
in boldface type.
Note
Do the FRU replacement or other actions in the
sequence shown in the “FRU/Action in Sequence”
column. If a FRU replacement does not solve the
problem, put the original part back in the computer.
Do not replace a nondefective FRU.
This index can also help you determine, during regular
servicing, what FRUs are liking to need to be replaced
next.
A numeric error is displayed for each error detected in
POST or system operation. In the displays, n can be any
number.
If no numeric code is presented, check the narrative
description of symptoms. If the symptom is not described
there, go to “Intermittent problems” on page 46.
Note
For IBM devices not supported by diagnostic codes in
the ThinkPad notebook computers, see the manual for
that device.
Numeric error codes
Symptom or errorFRU or action, in
0200
Fixed disk failure
0210, 0211
Stuck key
Keyboard error
0212
Keyboard controller failure
0213
Keyboard is locked
42ThinkPad 570 and 570E Hardware Maintenance
Manual
sequence
1. Reseat the hard disk
drive.
2. Load Setup Defaults in
IBM BIOS Setup Utility.
3. Hard disk drive.
4. System board.
1. Run the keyboard
test in the interactive
tests and auxiliary
input device.
1. Run the keyboard
test in the interactive
tests and auxiliary
input device.
1. Unlock external
keyboard.
Symptom-to-FRU index
Symptom or errorFRU or action, in
0220
Monitor type does not match
CMOS
0230
Shadow RAM failure at
offset nnnn
0231
System RAM failure at
offset nnnn
0250
System battery is
dead—replace and run
setup
0251
System CMOS checksum
bad—Default configuration
used
0260
System timer error
0270
Real time clock error
0280
Boot incomplete
error—Default configuration
used
0281
Memory size recognized by
POST is different from that
recognized by CMOS
02B0
Diskette drive error
02D0
System cache error—Cache
is disabled
02F0
CPU ID
sequence
1. Load Setup Defaults
in IBM BIOS Setup
Utility.
1. System board.
1. DIMM.
2. System board.
1. Replace the backup
battery and run IBM
BIOS Setup Utility to
reset the time and
date.
1. Replace the backup
battery. and run IBM
BIOS Setup Utility to
reset the time and
date.
1. Replace the backup
battery. and run IBM
BIOS Setup Utility to
reset the time and
date.
2. System board.
1. Replace the backup
battery and run IBM
BIOS Setup Utility to
reset the time and
date.
2. System board.
1. Load Setup Defaults
in IBM BIOS Setup
Utility.
2. DIMM.
3. System board.
1. Load Setup Defaults
in IBM BIOS Setup
Utility.
2. DIMM.
3. System board.
1. Check that the drive
is defined with the
proper diskette type
in IBM BIOS Setup
Utility.
Setup Utility and see
whether the hard disk
drive and diskette
drive are properly
identified.
2. Diskette drive.
3. Hard disk drive.
4. System board.
44ThinkPad 570 and 570E Hardware Maintenance
Manual
Symptom-to-FRU index
Beep symptoms
Symptom or errorFRU or action, in
One beep and a blank,
unreadable, or flashing LCD
One long and two short
beeps, and a blank or
unreadable LCD
Two short beeps with error
codes
Two short beeps with blank
screen
No beep symptoms
sequence
1. Reseat the LCD
connector
2. LCD assembly
3. System board
1. System board.
2. LCD assembly.
POST error. See
“Numeric error codes” on
page 42.
1. System board.
Symptom or errorFRU or action, in
No beep, power-on indicator
on, LCD blank, and no
POST
No beep, power-on indicator
on, and LCD blank during
POST
No beep, during POST but
system runs correctly
sequence
1. Ensure that every
connector is
connected tightly and
correctly.
2. DIMM.
3. System board.
1. Reseat DIMM.
2. System board.
1. Speaker.
LCD-related symptoms
Important
The TFT LCD for the notebook computer contains
many thin-film transistors (TFTs). A small number of
dots that are missing, discolored, or always lighted 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:
SVGA (12.1 in.): 5 or more bright dots, 5 or
more dark dots or a total of 9 or more bright and
dark dots.
XGA (13.3 in.): 8 or more bright dots, 8 or more
dark dots or a total of 9 or more bright and dark
dots.
ThinkPad 570 and 570E45
Symptom-to-FRU index
Symptom or errorFRU or action, in
No beep, power-on indicator
on, and a blank LCD during
POST
LCD backlight not
working
LCD too dark
LCD brightness cannot
be adjusted
LCD contrast cannot
be adjusted
LCD screen
unreadable
Characters missing
pixels
Screen abnormal
Wrong color displayed
LCD has extra horizontal or
vertical lines displayed
sequence
1. System board.
1. Reseat the LCDconnectors..
2. LCD assembly.
3. System board.
1. See important note
for “LCD-related
symptoms.” .
2. Reseat all LCD
connectors.
3. LCD assembly.
4. System board.
1. LCD assembly.
Intermittent problems
Intermittent system hang problems can be due to a variety
of causes that have nothing to do with a hardware defect,
such as: cosmic radiation, electrostatic discharge, or
software errors. FRU replacement should be considered
only when a recurring problem exists.
When analyzing an intermittent problem, do the following:
1. Run the diagnostic test for the system board in loop
mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
3. If any error is detected, replace the FRU shown by
the FRU code. Rerun the test to verify that no more
errors exist.
Undetermined problems
You are here because the diagnostic tests did not identify
which adapter or device failed, installed devices are
incorrect, a short circuit is suspected, or the system is
inoperative. Follow these procedures to isolate the failing
FRU (do not isolate nondefective FRUs).
Verify that all attached devices are supported by the
computer.
Verify that the power supply being used at the time of the
failure is operating correctly. (See “Power system
checkout” on page 29.)
1. Power off the computer.
2. Visually check each FRU for damage. Replace any
damaged FRU.
46ThinkPad 570 and 570E Hardware Maintenance
Manual
Symptom-to-FRU index
3. Remove or disconnect all of the following devices:
a. Non-IBM devices
b. Devices attached to the port replicator
c. Printer, mouse, and other external devices
d. Battery pack
e. Hard disk drive
f. External diskette drive
g. DIMM
h. CD-ROM and diskette drive in the UltraslimBay
i. PC Cards
4. Power on the computer.
5. Determine whether the problem has changed.
6. If the problem does not recur, 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 nondefective FRU):
a. System board
b. LCD assembly
ThinkPad 570 and 570E47
FRU replacement notices
FRU replacement notices
This section contains notices for removal and replacement.
Read this section carefully before replacing any FRU.
Screw notices
Loose screws can cause a reliability problem. The an IBM
ThinkPad computer address this problem with special
nylon-coated screws that have the following characteristics:
They maintain tight connections.
They do not easily come loose, even with shock or
vibration.
They need additional force to tighten.
They should be used only once.
Do the following when you service this machine:
Keep the screw kit (P/N 05K4841) in your tool bag.
Always use new screws.
Use a torque screwdriver if you have one.
Tighten screws as follows:
Plastic to plastic
Turn an additional 90 degrees after the screw head
touches the surface of the plastic part:
Logic card to plastic
Turn an additional 180 degrees after the screw head
touches the surface of the logic card:
Torque driver
If you have a torque driver, refer to the “Torque”
column with each step.
Make sure you use the correct screw. If you have a
torque screwdriver, tighten all screws firmly to the
48ThinkPad 570 and 570E Hardware Maintenance
Manual
FRU replacement notices
torque shown in the table. Never use a screw that
you removed. Use a new one. Make sure the
screws are tightened firmly
Retaining serial numbers
This section includes the following descriptions:
“Restoring the serial number of the system unit”
“Retaining the UUID”
Restoring the serial number of the system
unit: When the computer was manufactured, the
EEPROM on the system board was loaded with the serial
numbers of the system and all major components. The
numbers need to remain the same throughout the life of
the computer.
When you replace the system board, you must restore the
system unit serial number to its original value.
Before replacing the system board, save the original serial
number by doing the following:
1. Install the ThinkPad Hardware Maintenance Diskette
Version 1.60 and restart the computer.
2. From the main menu, select 1. Set SystemIdentification.
3. Select 2. Read S/N data from EEPROM.
The serial number for each device is displayed. Write
down the serial number of the system unit, designated as
follows:
20: System unit serial number
After you have replaced the system board, restore the
serial number by doing the following:
1. Install the ThinkPad Hardware Maintenance Diskette
Version 1.60 and restart the computer.
2. From the main menu, select 1. Set SystemIdentification.
3. Select 1. Add S/N data from EEPROM.
Follow the instructions on the screen.
Note: The serial number of the system unit is written on
the label attached on the bottom of the computer.
Retaining the UUID: The Universally Unique
Identifier (UUID) is a 128-bit number uniquely assigned to
your computer at production and stored in the EEPROM of
your system board. The algorithm that generates the
unique number is designed to provide unique IDs until the
year A.D. 3400. No two computers in the world have the
same number.
When you replace the system board, you must set the
UUID on the new system board as follows:
ThinkPad 570 and 570E49
FRU replacement notices
1. Install the ThinkPad Hardware Maintenance Diskette
Version 1.60, and restart the computer.
2. Select 4. Assign UUID from the main menu.
A new UUID is created and written. If a valid UUID
already exists, it is not overwritten.
50ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
Removing and replacing a FRU
This section presents information and drawings for use in
removing and replacing a FRU. Be sure to observe the
following general rules:
1. Do not try to service the computer unless you have
been trained and certified. An untrained person runs
the risk of damaging parts.
2. Before replacing any FRU, review “FRU replacement
notices” on page 48.
3. Begin by removing any FRUs that have to be
removed before the failing FRU. Any such FRUs are
listed at the top of the page. Remove them in the
orders in which they are listed.
4. Follow the correct sequence in the steps for removing
the FRU, as indicated in the drawings by the numbers
in square callouts.
5. When turning a screw to replace a FRU, turn it in the
direction indicated by the arrow in the drawing.
6. When removing the FRU, move it in the direction
indicated by the arrow in the drawing.
7. To put the new FRU in place, reverse the removal
procedure and follow any notes that pertain to
replacement. For information about connecting and
arranging internal cables, see “Locations” on
page 94.
8. When replacing a FRU, use the correct screw as
shown in the procedures.
Safety Notice 1: Translation on page 4
Before the computer is powered on after FRU
replacement, make sure all screws, springs, and other
small parts are in place and are not loose inside the
computer. Verify this by shaking the computer gently
and listening for rattling sounds. Metallic parts or
metal flakes can cause electrical short circuits.
Safety Notice 3: Translation on page 6
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.
Safety Notice 8: Translation on page 10
Before removing any FRU, power off the computer,
unplug all power cords from electrical outlets, remove
the battery pack, and then disconnect any
interconnecting cables.
ThinkPad 570 and 570E51
Removing and replacing a FRU
Attention
The system board is sensitive to, and can be
damaged by, electrostatic discharge. Establish
personal grounding by touching a ground point with
one hand before touching these units.
You must use electrostatic discharge (ESD) strap (P/N
6405959) to establish personal grounding.
52ThinkPad 570 and 570E Hardware Maintenance
Manual
1010 Battery pack
Removing and replacing a FRU
ThinkPad 570 and 570E53
Removing and replacing a FRU
1020 Backup battery
Safety Notice 4: Translation on page 7
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. The use of an
incorrect battery can result in ignition or explosion of
the battery.
Battery pack (1010)
StepScrew (quantity)Torque
1M2.5 x 3 mm (1)4 kgcm
(continued)
54ThinkPad 570 and 570E Hardware Maintenance
Manual
Cable route:
Removing and replacing a FRU
ThinkPad 570 and 570E55
Removing and replacing a FRU
1030 DIMM
Battery pack (1010)
Note
The ThinkPad 570E computer's DIMM slot faces in the
direction opposite that shown here. However, the
procedure for removing DIMM is the same.
StepScrew (quantity)Torque
1Not removable4 kgcm
56ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
1040 Hard disk drive
Attention
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.
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 in suspend mode.
Battery pack (1010)
1 Coin screw or security screw
Note: Use a 2.5-mm allen wrench to remove the security
screw. (continued)
ThinkPad 570 and 570E
57
Removing and replacing a FRU
When removing the hard disk drive, open the LCD a little
as shown in the figure.
Attention
Be careful not to drop the hard disk drive. It is still
attached to the cover when you push it up.
58ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
1050 Keyboard
Battery pack (1010)
Hard disk drive (1040)
StepScrew (quantity)Torque
1M2.5 x 9 mm (3)4 kgcm
(continued)
ThinkPad 570 and 570E59
Removing and replacing a FRU
60ThinkPad 570 and 570E Hardware Maintenance
Manual
1060 Center cover
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Removing and replacing a FRU
StepScrew (quantity)Torque
1M2.5 x 3 mm (2)4 kgcm
2M2.5 x 9 mm (1)4 kgcm
3M2.5 x 9 mm (1)4 kgcm
ThinkPad 570 and 570E61
Removing and replacing a FRU
1070 Modem card
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
62ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
1080 Frame and power switch
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
StepScrew (quantity)Torque
1M2.5 x 3 mm (4)4 kgcm
(continued)
ThinkPad 570 and 570E63
Removing and replacing a FRU
StepScrew (quantity)Torque
2M2.5 x 4.8 mm (4)4 kgcm
64ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
1090 Audio card
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Modem card (1070)
Frame and power switch (1080)
StepScrew (quantity)Torque
4M2.5 x 4.8 mm (1)4 kgcm
ThinkPad 570 and 570E65
Removing and replacing a FRU
1100 Modem jack
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Modem card (1070)
Frame and power switch (1080)
Audio card (1090)
StepScrew (quantity)Torque
1M2.5 x 4.8 mm (1)4 kgcm
66ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
1110 Speaker
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Modem card (1070)
Frame and power switch (1080)
Audio card (1090)
For the ThinkPad 570 computer
StepScrew (quantity)Torque
1M2.5 x 4.8 mm (2)4 kgcm
(continued)
ThinkPad 570 and 570E67
Removing and replacing a FRU
For the ThinkPad 570E computer
68ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
1120 Audio cable
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Modem card (1070)
Frame and power switch (1080)
Audio card (1090)
When replacing: Make sure you install the cable in the
correct direction. Installing it the wrong direction
will cause audio problems.
ThinkPad 570 and 570E
69
Removing and replacing a FRU
1130 PC Card slots
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Frame and power switch (1080)
StepScrew (quantity)Torque
1M2.5 x 4.8 mm (1)4 kgcm
70ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
1140 Hard disk drive cable
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Frame and power switch (1080)
For the ThinkPad 570 computer
StepScrew (quantity)Torque
1M2.5 x 4.8 mm (2)4 kgcm
(continued)
ThinkPad 570 and 570E71
Removing and replacing a FRU
For the ThinkPad 570E computer
StepScrew (quantity)Torque
1M2.5 x 4.8 mm (2)4 kgcm
(continued)
72ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
When replacing: If the cable and cable shield are not
installed correctly, they might be in the way when
you install the hard disk drive.
To install them correctly, do as follows:
1. Insert the tab of the cable 1 and catch the
cable shield by the base cover latches 2.
2. Catch the cable by the base cover latch 3.
3. Insert the tabs of the cable shield 4 into the
holes of the base cover.
ThinkPad 570 and 570E73
Removing and replacing a FRU
1150 Upper shield
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Frame and power switch (1080)
StepScrew (quantity)Torque
2M2.5 x 4.8 mm (3)4 kgcm
3M2 x 9 mm (4)2 kgcm
(continued)
74ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
For the ThinkPad 570 computer
StepScrew (quantity)Torque
6M2.5 x 4.8 mm (3)4 kgcm
7M2 x 9 mm (3)Yellow
2
kgcm
(continued)
ThinkPad 570 and 570E75
Removing and replacing a FRU
For the ThinkPad 570E computer
StepScrew (quantity)Torque
5M2 x 9 mm (3)4 kgcm
6M2.5 x 4.8 mm (1)4 kgcm
76ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
1160 Fan
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Frame and power switch (1080)
Upper shield (1150)
For the ThinkPad 570 computer
Note: Do not pinch the fan cable when re-installing the
fan.
StepScrew (quantity)Torque
1M2 x 9 mm (2)2 kgcm
ThinkPad 570 and 570E77
Removing and replacing a FRU
For the ThinkPad 570E computer
StepScrew (quantity)Torque
1M2.5 x 4.8 mm (2)2 kgcm
When replacing:
1. Make sure not to pinch the fan cable when
re-installing the fan.
2. Apply grease to the underside of the surface shown in
the dotted square in the following figure:
78ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
1170 LCD unit
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Frame and power switch (1080)
StepScrew (quantity)Torque
1M2.5 x 4.8 mm (4)4 kgcm
(continued)
ThinkPad 570 and 570E79
Removing and replacing a FRU
StepScrew (quantity)Torque
2M2 x 9 mm (1)4 kgcm
3M2.5 x 4.8 mm (1)4 kgcm
5M2.5 x 4.8 mm (2)4 kgcm
80ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
1180 System board assembly
Battery pack (1010)
Backup battery (1020)
DIMM (1030)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Modem card (1070)
Frame and power switch (1080)
Audio card (1090)
Modem jack (1100)
Speaker (1110)
Audio cable (1120)
PC Card slots (1130)
Hard disk drive cable (1140)
Upper shield (1150)
LCD unit (1170)
StepScrew (quantity)Torque
1M2.5 x 4.8 mm (4)4 kgcm
ThinkPad 570 and 570E81
Removing and replacing a FRU
1190 I/O Connector cable or system
board
Battery pack (1010)
Backup battery (1020)
DIMM (1030)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Modem card (1070)
Frame and power switch (1080)
Audio card (1090)
Modem jack (1100)
Speaker (1110)
Audio cable (1120)
PC Card slots (1130)
Hard disk drive cable (1140)
Upper shield (1150)
LCD unit (1170)
StepScrew (quantity)Torque
1M2.5 x 4.8 mm (2)4 kgcm
(continued)
82ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
ThinkPad 570 and 570E83
Removing and replacing a FRU
2010 LCD front bezel
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Frame and power switch (1080)
LCD unit (1170)
CAUTION:
The inverter card has a high tension current. To avoid
shock hazard, never power on the computer when the
LCD cover is opened.
The TFT LCD for the notebook computer contains many
thin-film transistors (TFTs). A small number of dots that
are missing, discolored, or always lighted 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:
SVGA (12.1 in.): 5 or more bright dots, 5 or more
dark dots or a total of 9 or more bright and dark dots.
XGA (13.3 in.): 8 or more bright dots, 8 or more dark
dots or a total of 9 or more bright and dark dots.
(continued)
84ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
13.1-inch XGA TFT LCD
StepScrew (quantity)Torque
1M2.5 x 3 mm (2)4 kgcm
ThinkPad 570 and 570E85
Removing and replacing a FRU
12.1-inch SVGA TFT LCD
StepScrew (quantity)Torque
1M2.5 x 3 mm (4)4 kgcm
86ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
2020 Inverter card
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Frame and power switch (1080)
LCD unit (1170)
LCD front bezel (2010)
Note: Be careful of high voltage on the cable. Connect
the LCD connector firmly to the inverter card by
lifting it up straight.
13.3-Inch XGA TFT LCD
StepScrew (quantity)Torque
1M2.5 x 3 mm (1)4 kgcm
12.1-inch SVGA TFT LCD
ThinkPad 570 and 570E87
Removing and replacing a FRU
2030 LCD panel
Battery pack (1010)
Hard disk drive (1040)
Center cover (1060)
LCD unit (1170)
LCD front bezel (2010)
Inverter card (2020)
13.3-inch XGA TFT LCD
StepScrew (quantity)Torque
1M2.5 x 3 mm (2)4 kgcm
2M2.5 x 3 mm (2)4 kgcm
(continued)
88ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
StepScrew (quantity)TorqueNote
4M2.5 x 3 mm (2)4 kgcmBlue, Small
head
ThinkPad 570 and 570E89
Removing and replacing a FRU
12.1-inch SVGA TFT LCD
StepScrew (quantity)Torque
1M2.5 x 3 mm (4)4 kgcm
90ThinkPad 570 and 570E Hardware Maintenance
Manual
Removing and replacing a FRU
2040 Hinges
Battery pack (1010)
Hard disk drive (1040)
Keyboard (1050)
Center cover (1060)
Frame and power switch (1080)
LCD unit (1170)
LCD front bezel (2010)
Inverter card (2020)
LCD panel (2030)