Lenovo 3000 N100 User Manual 3
Lenovo 3000 N100
Hardw are
Maintenance Manual
March 2006
This manual supports:
Lenovo 3000 N100
(MT 0689, 0690, 0768)
Lenovo 3000 N100
Hardw are
Maintenance Manual
Note
Before using this information and the product it supports, be sure to read the general information under “Notices” on page
90.
First Edition (March 2006)
© Copyright Lenovo 2006. All rights reserved.
U.S. GOVERNMENT USERS – RESTRICTED RIGHTS: Our products and/or services are provided with
RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule
contract with Lenovo Group Limited, if any, or the standard terms of this commercial license, or if the agency is
unable to accept this Program under these terms, then we provide this Program under the provisions set forth in
Commercial Computer Software–Restricted Rights at FA R 52.227-19, when applicable, or under Rights in
Data-General, FA R 52.227.14 (Alternate III).
Contents
Introduction . . . . . . . . . . . . .1
About this manual . . . . . . . . . . . .1
Important service information . . . . . . . .1
Strategy for replacing FRUs . . . . . . . . .1
Strategy for replacing a hard disk drive . . . .2
Important notice for replacing a system board . .2
How to use error messages . . . . . . . .2
Strategy for replacing FRUs for Custom Model
Variant (CMV) products . . . . . . . . . .2
Using PC Entitlement Warehouse (PEW) . . . .3
Using eSupport . . . . . . . . . . . .3
Using the HMM . . . . . . . . . . . .3
Important information about replacing RoHS
compliant FRUs . . . . . . . . . . . . .4
Diskette compatibility matrix . . . . . . . . .5
Safety notices: multilingual translations . . . . .5
Safety information . . . . . . . . . . . .11
General safety . . . . . . . . . . . .11
Electrical safety . . . . . . . . . . . .11
Safety inspection guide . . . . . . . . .13
Handling devices that are sensitive to
electrostatic discharge . . . . . . . . . .14
Grounding requirements . . . . . . . . .14
Laser compliance statement . . . . . . . . .15
General descriptions . . . . . . . . .17
Read this first . . . . . . . . . . . . .17
What to do first . . . . . . . . . . . .17
Related service information . . . . . . . . .19
Service We b site . . . . . . . . . . . .19
Restoring the pre-installed system . . . . . .19
Passwords . . . . . . . . . . . . . .20
Power management . . . . . . . . . .22
Checkout guide . . . . . . . . . . . . .24
Testing the computer . . . . . . . . . .24
Detecting system information with PC-Doctor . .26
Power system checkout . . . . . . . . .26
Lenovo 3000 N100 . . . . . . . . . .29
Product overview . . . . . . . . . . . .30
Specifications . . . . . . . . . . . . .30
Status indicators . . . . . . . . . . . .32
FRU tests . . . . . . . . . . . . . .33
Fn key combinations . . . . . . . . . .34
Symptom-to-FRU index . . . . . . . . . .35
Numeric error codes . . . . . . . . . .35
Error messages . . . . . . . . . . . .37
Beep symptoms . . . . . . . . . . . .38
No-beep symptoms . . . . . . . . . . .38
LCD-related symptoms . . . . . . . . .39
Intermittent problems . . . . . . . . . .40
Undetermined problems . . . . . . . . .40
FRU replacement notices . . . . . . . . . .41
Screw notices . . . . . . . . . . . . .41
Retaining serial numbers . . . . . . . . .41
Removing and replacing a FRU . . . . . . . .44
1010 Battery pack . . . . . . . . . . .45
1020 Hard disk drive slot cover . . . . . . .46
1030 Hard disk drive . . . . . . . . . .46
1040 PCI Express Mini Card for wireless LAN . .47
1050 DIMM slot cover . . . . . . . . . .48
1060 DIMM . . . . . . . . . . . . .48
1070 Optical drive . . . . . . . . . . .49
1080 Thermal module slot cover and fan . . .50
1090 Thermal module . . . . . . . . . .51
1100 CPU . . . . . . . . . . . . . .53
1110 Cover, strip (E cover) . . . . . . . .54
1120 Keyboard . . . . . . . . . . . .55
1130 Function board . . . . . . . . . .57
1140 LCD unit . . . . . . . . . . . .58
1150 To p cover assembly (C cover) with speakers
and Bluetooth daughter card (BDC) . . . . .61
1160 USB/Audio connector card . . . . . .66
1170 VGA connector card . . . . . . . . .67
1180 System board, MDC, PC Card slot, and
bottom cover assembly (D cover) . . . . . .68
2010 LCD front bezel (B cover) . . . . . . .71
2020 Inverter card . . . . . . . . . . .72
2030 LCD panel, LCD cable, and hinges . . . .73
2040 Camera and LCD rear cover assembly (A
cover) . . . . . . . . . . . . . . .75
Locations . . . . . . . . . . . . . . .76
Front view . . . . . . . . . . . . . .76
Rear view . . . . . . . . . . . . . .77
Bottom view . . . . . . . . . . . . .77
Parts list . . . . . . . . . . . . . . .78
Overall . . . . . . . . . . . . . . .78
AC adapters . . . . . . . . . . . . .81
LCD FRUs . . . . . . . . . . . . . .82
Keyboard . . . . . . . . . . . . . .84
Recovery CDs . . . . . . . . . . . .85
Miscellaneous parts . . . . . . . . . . .87
Common parts list . . . . . . . . . . .88
Notices . . . . . . . . . . . . . . . .90
Trademarks . . . . . . . . . . . . . .91
© Copyright Lenovo 2006 iii
iv MT 0689, 0690, 0768
Introduction
About this manual
This manual contains service and reference information for Lenovo 3000 N100 (MT
0689, 0690, 0768). Use this manual along with the advanced diagnostic tests to
troubleshoot problems.
The manual is divided into sections as follows:
v The common sections provide general information, guidelines, and safety
information required in servicing computers.
v The product-specific section includes service, reference, and product-specific
parts information.
Important
This manual is intended for trained service personnel who are familiar with
Lenovo 3000 products. Use this manual along with the advanced diagnostic
tests to troubleshoot problems effectively.
Before servicing a Lenovo 3000 product, be sure to review the safety
information under “Safety notices: multilingual translations” on page 5,
“Safety information” on page 11, and “Laser compliance statement” on page
15.
Important service information
Important
BIOS and device driver fixes are customer-installable. The BIOS and device
drivers are posted on the customer support site
http://www.lenovo.com/support
Advise customers to contact the Customer Support Center at 800-426-7378 if
they need assistance in obtaining or installing any software fixes, drivers, and
BIOS downloads.
Customers in Canada should call the Customer Support Center at
800-565-3344 for assistance or download information.
Strategy for replacing FRUs
Before replacing parts
Make sure that all software fixes, drivers, and BIOS downloads are installed
before replacing any FRUs listed in this manual.
Use the following strategy to prevent unnecessary expense for replacing and
servicing FRUs:
© Copyright Lenovo 2006 1
Important service information
v If you are instructed to replace a FRU but the replacement 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
replacing one of them does not correct the problem, reinstall that board, and
then replace the other one.
v If an adapter or a device consists of more than one FRU, any of the FRUs may
be the cause of the error. Before replacing the adapter or device, remove the
FRUs, one by one, to see if the symptoms change. Replace only the FRU that
changed the symptoms.
Attention: The setup configuration on the computer you are servicing may have
been customized. Running Automatic Configuration may alter the settings. Note
the current configuration settings (using the View Configuration option); then,
when service has been completed, verify that those settings remain in effect.
Strategy for replacing a hard disk drive
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 may
have been changed. Be extremely careful during write operations such as copying,
saving, or formatting. If you select an incorrect drive, data or programs can be
overwritten.
Important notice for replacing a system board
Some components mounted on a system board are very sensitive. Improper
handling of a system board can cause damage to those components, and may
cause a system malfunction.
Attention: When handling a system board:
v Do not drop a system board or apply any excessive force to it.
v Avoid rough handling of any kind.
v Avoid bending a system board and hard pushing to prevent cracking at each
BGA (Ball Grid Array) chipset.
How to use error messages
Use the error codes displayed on the screen to diagnose failures. If more than one
error code is displayed, begin the diagnosis with the first error code. Whatever
causes the first error code may also cause false error codes. If no error code is
displayed, see whether the error symptom is listed in the Symptom-to-FRU Index
for the computer you are servicing.
Strategy for replacing FRUs for Custom Model Variant (CMV) products
Custom Model Variant (CMV) is a unique configuration that has been negotiated
between Lenovo and the customer. A unique 4-digit MT and 3-digit model is
provided to the customer to place orders (Example: 1829-W15). A CMV is a special
bid offering. Therefore, it is NOT generally announced.
2 MT 0689, 0690, 0768
There are three information resources to identify which FRUs are used to support
CMV products. These sources are PC Entitlement Warehouse (PEW), eSupport, and
the HMM.
Important service information
Using PC Entitlement Warehouse (PEW)
v PEW is the primary source for identifying FRU part numbers and FRU
descriptions for the key commodities for CMV products at a MT - serial number
level. An example of key commodities are hard disk drives, system boards,
microprocessors, Liquid Crystal Displays (LCDs), and memory.
v Remember, All CMV products are loaded in PEW under the 4-digit MT and
3-digit model, where model = “fixed part number”.
v PEW can be accessed at the following We b site:
http://w3-3.ibm.com/pc/entitle
Customers can also access PEW via
http://www-307.ibm.com/pc/support/site.wss/product.do?template=/
warranty/warranty.vm&sitestyle=lenovo
on MACHINE LOOKUP, followed by WARRANTY INFORMATION. Input
Click
the MT and the Serial number and the list of key commodities will be returned
in the PEW record under COMPONENT INFORMATION.
v Business Partners using Eclaim will access PEW when performing Entitlement
Lookup. Business Partners will enter Loc ID, MT and Serial, and the key
commodities will be returned in the Eclaim record under SYSTEM DETAILS.
v Authorized IBM Business Partners can access Eclaim at the following We b site:
https://wca.eclaim.com
Using eSupport
For Key Commodities (Examples - hard disk drive, system board,
microprocessor, LCD, and memory)
v eSupport can be used to view the list of key commodities built in a particular
machine serial (this is the same record found in PEW).
v eSupport can be accessed at the following We b site:
http://www.lenovo.com/support
v To view the key commodities, click on PA RT S INFORMATION, then PA RT S
LOOKUP. Type in the model type and serial number. The key commodities will
be returned in the eSupport record under PA RT S SHIPPED WITH YOUR
SYSTEM.
For the Remaining FRUs (the complete list of FRUs at the MT Model level)
v eSupport can be used to view the complete list of FRUs for a machine type and
model.
v To view the complete list of FRUs, type in the machine type and model
(Example: 1829-CTO) under QUICK PATH. Under “View by Document Type”
select PA RTS INFORMATION. Under “Filter by Category” select SERVICE
PARTS. Under “Parts Information by Date” select SYSTEM SERVICE PARTS. The
list of service parts by description, with applicable machine type model and FRU
will be displayed.
Using the HMM
Use the HMM as a back-up to PEW and eSupport to view the complete list of
FRUs at the MT Model level. CMVs are custom models and are not found in the
HMM.
Introduction 3
Important service information
Important information about replacing RoHS compliant FRUs
RoHS, The Restriction of Hazardous Substances in Electrical and Electronic
Equipment Directive (2002/95/EC) is a European Union legal requirement
affecting the global electronics industry. RoHS requirements must be
implemented on Lenovo products placed on the market after June 2006. Products
on the market before June 2006 are not required to have RoHS compliant parts.
So, if the original FRU parts are non compliant, replacement parts can also be
non compliant. In all cases if the original FRU parts are RoHS compliant the
replacement part must also be RoHS compliant.
Lenovo plans to transition to RoHS compliance well before the implementation
date and expects its suppliers to be ready to support Lenovo's requirements and
schedule. Products sold in 2005, will contain some RoHS compliant FRUs. The
following statement pertains to these products and any product Lenovo produces
containing RoHS compliant FRUs.
RoHS compliant FRUs have unique FRU part numbers. Before or after the RoHS
implementation date , failed RoHS compliant parts must always be replaced using
RoHS compliant FRUs, so only the FRUs identified as compliant in the system
HMM or direct substitutions for those FRUs may be used.
Products marketed before June 2006 Products marketed after June 2006
Current or original
part
Non-RoHS Can be Non-RoHS Must be RoHS Must be RoHS
Non-RoHS Can be RoHS
Non-RoHS Can sub to RoHS
RoHS Must be RoHS
Replacement FRU Current or original
part
Replacement FRU
Note: A direct substitution is a part with a different FRU part number that is
automatically shipped by the distribution center at the time of the order.
4 MT 0689, 0690, 0768
Diskette compatibility matrix
The compatibility of each of the drives with the diskettes for it is as follows:
Diskette compatibility matrix
Diskette
drive
3.5-inch 1.0 MB Read and write
Safety notices: multilingual translations
In this manual, safety notices appear in English with a page number reference to
the appropriate multilingual, translated safety notice found in this section.
The following safety notices are provided in English, French, German, Hebrew,
Italian, and Spanish.
Safety notice 1
Before the computer is powered on after FRU replacement, make sure all screws, springs,
and other small parts are in place and are not left loose inside the computer. Verify this
by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes
can cause electrical shorts.
Avant de remettre l’ordinateur sous tension après remplacement d’une unité en clientèle,
vérifiez que tous les ressorts, vis et autres pièces sont bien en place et bien fixées. Pour
ce faire, secouez l’unité et assurez-vous qu’aucun bruit suspect ne se produit. Des pièces
métalliques ou des copeaux de métal pourraient causer un court-circuit.
Diskette
Compatibility
capacity
2.0 MB Read and write
4.0 MB Not compatible
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.
Introduction 5
Safety notices
Safety notice 2
DANGER
Some standby batteries contain a small amount of nickel and cadmium. Do not
disassemble a standby battery, recharge it, throw it into fire or water, or short-circuit it.
Dispose of the battery as required by local ordinances or regulations. Use only the
battery in the appropriate parts listing. Use of an incorrect battery can result in
ignition or explosion of the battery.
Certaines batteries de secours contiennent du nickel et du cadmium. Ne les démontez
pas, ne les rechargez pas, ne les exposez ni au feu ni 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.
6 MT 0689, 0690, 0768
Safety notices
Safety notice 3
DANGER
The battery pack contains small amounts of nickel. Do not disassemble it, throw it
into fire or water, or short-circuit it. Dispose of the battery pack as required by local
ordinances or regulations. Use only the battery in the appropriate parts listing when
replacing the battery pack. Use of an incorrect battery can result in ignition or
explosion of the battery.
La batterie contient du nickel. Ne la démontez pas, ne l’exposez ni au feu ni 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.
Introduction 7
Safety notices
Safety notice 4
DANGER
The lithium battery can cause a fire, an explosion, or a 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 batería de repuesto es una batería de litio y puede provocar incendios, explosiones
o quemaduras graves. No la recargue, ni quite el conector polarizado, ni la desmonte,
ni caliente por encima de los 100°C (212°F), ni la incinere ni exponga el contenido de
sus celdas al agua. Deséchela tal como dispone la normativa local.
8 MT 0689, 0690, 0768
Safety notices
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.
Safety notice 6
DANGER
To avoid shock, do not remove the plastic cover that protects the lower part of the
inverter card.
Afin d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique
protégeant la partie inférieure de la carte d’alimentation.
Aus Sicherheitsgründen die Kunststoffabdeckung, die den unteren Teil der
Spannungswandlerplatine umgibt, nicht entfernen.
Per evitare scosse elettriche, non rimuovere la copertura in plastica che avvolge la
parte inferiore della scheda invertitore.
Para evitar descargas, no quite la cubierta de plástico que rodea la parte baja de la
tarjeta invertida.
Introduction 9
Safety notices
Safety notice 7
DANGER
Though the main batteries have low voltage, a shorted or grounded battery can
produce enough current to burn personnel or combustible materials.
Bien que le voltage des batteries principales soit peu élevé, le court-circuit ou la mise
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.
Safety notice 8
DANGER
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.
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.
10 MT 0689, 0690, 0768
Safety information
The following section presents safety information with which you need to be
familiar before you service a Lenovo 3000 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. Make sure that 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
4. Lift by standing or by pushing up with your leg muscles; this action removes
Do not perform any action that causes hazards to the customer, or that makes
v
the equipment unsafe.
v Before you start the machine, make sure 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 toolcase 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. Make sure 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, about 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.
v Reinstall all covers correctly before returning the machine to the customer.
v Fan louvers on the machine help to prevent overheating of internal components.
Do not obstruct fan louvers or cover them with labels or stickers.
Safety information
lift.
the strain from the muscles in your back. Do not attempt to lift any object that
weighs more than 16 kg (35 lb) or that you think is too heavy for you.
Electrical safety
Observe the following rules when working on electrical equipment.
Introduction 11
Safety information
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
Before you start to work on the machine, unplug the power cord. If you cannot
v
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: An electrical shock can occur only when there is a complete
circuit. 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.
12 MT 0689, 0690, 0768
Observe the special safety precautions when you work with very high voltages;
Instructions for these precautions 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.
Safety information
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 purpose of this inspection guide is to assist you in identifying potentially
unsafe conditions. As each machine was designed and built, required safety items
were installed to protect users and service personnel from injury. This guide
addresses only those items. Yo u should use good judgment to identify potential
safety hazards due to attachment of non-Lenovo 3000 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:
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 a bulging capacitor
v Mechanical hazards, such as loose or missing hardware
determine whether there are any potentially unsafe conditions, use the
To
following checklist at the beginning of every service task. 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 the frame ground.
b. The power cord should be the type specified in the parts list.
c. Insulation must not be frayed or worn.
4. Remove the cover.
5. Check for any obvious non-Lenovo 3000 alterations. Use good judgment as to
the safety of any non-Lenovo 3000 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.
Introduction 13
Safety information
Handling devices that are sensitive to electrostatic discharge
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:
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 to guard against ESD damage is desirable
but not necessary.
– Attach the ESD ground clip to any frame ground, ground braid, or green-wire
ground.
– When working on a double-insulated or battery-operated system, use an ESD
common ground or reference point. Yo u 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.
14 MT 0689, 0690, 0768
Laser compliance statement
Some models of Lenovo 3000 computer are equipped from the factory with an
optical storage device such as a CD-ROM drive or a DVD-ROM drive. Such
devices are also sold separately as options. If one of these drives is installed, it 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.
If a CD-ROM drive, a DVD-ROM drive, or another laser device 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.
Laser compliance statement
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.
Opening the CD-ROM drive, the DVD-ROM drive, or any other optical storage
device could result in exposure to hazardous laser radiation. There are no
serviceable parts inside those drives. Do not open.
Introduction 15
Laser compliance statement
A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may
contain an embedded Class 3A or Class 3B laser diode. Note the following:
DANGER
Emits visible and invisible 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 való érintkezést !.
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.
16 MT 0689, 0690, 0768
General descriptions
Read this first
The descriptions in this chapter apply to any Lenovo 3000 model that has the
PC-Doctor
®
for DOS diagnostics program. Some descriptions might not apply to
your particular computer.
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 Before replacing any FRU, read the entire page on removing and
replacing FRUs.
v When you replace FRUs, use new nylon-coated screws.
v Be extremely careful during such write operations as copying, saving, or
formatting. Drives in the computer that you are servicing sequence might
have been altered. If you select an incorrect drive, data or programs might
be overwritten.
v Replace an FRU only with another FRU of the correct model. When you
replace a FRU, make sure that the model of the machine and the 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 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 suspect that a FRU is defective, clear the error log
and run the test again. If the error does not recur, do not replace the FRU.
v 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
__ 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
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.
© Copyright Lenovo 2006 17
Read this first
Following is a list of 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.
Before checking problems with the computer, determine whether the damage is
covered under the warranty by referring to the following list:
The following are not covered under warranty:
v LCD panel cracked from the application of excessive force or from being
dropped
v Scratched (cosmetic) parts
v Distortion, deformation, or discoloration of the cosmetic parts
v Plastic parts, latches, pins, or connectors that have been cracked or broken by
excessive force
v Damage caused by liquid spilled into the system
v Damage caused by the improper insertion of a PC Card or the installation of an
incompatible card
v Diskette drive damage caused by pressure on the diskette drive cover, foreign
material in the drive, or the insertion of a diskette with multiple labels
v Damaged or bent diskette eject button
v Fuses blown by attachment of a nonsupported device
v Forgotten computer password (making the computer unusable)
v Sticky keys caused by spilling a liquid onto the keyboard
The following symptoms might indicate damage caused by nonwarranted
activities:
v Missing parts might be a symptom of unauthorized service or modification.
v If the spindle of a hard disk drive becomes noisy, it may have been subjected to
excessive force, or dropped.
18 MT 0689, 0690, 0768
Related service information
This section provides information about the following:
v “Service We b site”
v “Restoring the pre-installed system”
v “Passwords” on page 20
v “Power management” on page 22
Service Web site
When the latest maintenance diskette and the system program service diskette
become available, they will be posted on http://www.lenovo.com/think/spm
Restoring the pre-installed system
When the hard disk drive is replaced because of a failure, no Product Recovery
program is on the new hard disk. In this case, you must use the recovery CD for
the computer. Order the recovery CD and the hard disk drive at the same time so
that you can recover the new hard disk drive with the pre-installed software when
they arrive. For information on which CD to order, see “Recovery CDs” on page
85.
Recovery to Factory Contents by using Product Recovery CDs
Related service information
To create the service partition and install the factory contents from the recovery
CD, do the following:
Note
The recovery process might take up to 2 hours.
1. Insert the recovery CD into the CD or DVD drive, then restart the computer.
2. The following message is displayed: “Your computer originally included a
Product Recovery program ... Reinstall the Product Recovery program? (Y/N) [
]”.
3. Press the Y key. The service partition is created and loaded with the Product
Recovery program files.
4. At next window, press Enter to continue.
v The service partition is created. The system automatically reboots during this
process.
v The recovery process copies some files to the service partition, and
PKUNZIPs others.
v Follow the prompts. Yo u may be prompted to change CDs.
v When the process is complete, the system reboots.
5. If you get a message asking which operating system to install, select the proper
operating system and press Enter.
6. A message is displayed: “Full Recovery:”. Press Enter to select.
7. On each of the next three windows, press the Y key.
8. Follow the prompts to complete the recovery.
General descriptions 19
Related service information
Passwords
As many as three passwords may be needed for any Lenovo 3000 computer: the
power-on password (POP), the hard-disk password (HDP), and the supervisor
password (SVP).
If any of these passwords has been set, a prompt for it appears on the screen
whenever the computer is turned on. The computer does not start until the
password is entered.
Exception: If only an SVP is installed, the password prompt does not appear when
Power-on password:
power-on password (POP) protects the system from being powered on by an
A
unauthorized person. The password must be entered before an operating system
can be booted.
Hard-disk password:
There are two hard-disk passwords (HDPs):
v User HDP—for the user
v Master HDP—for the system administrator, who can use it to get access to the
hard disk even if the user has changed the user HDP
the operating system is booted.
There are two modes for the HDP: User only and Master + User. The
Note:
Master + User mode requires two HDPs; the system administrator enters
both in the same operation. The system administrator then provides the user
HDP to the system user.
Attention: If the user HDP has been forgotten, check whether a master HDP has
been set. If it has, it can be used for access to the hard disk drive. If no master
HDP is available, neither Lenovo nor Lenovo authorized servicers provide any
services to reset either the user or the master HDP, or to recover data from the
hard disk drive. The hard disk drive can be replaced for a scheduled fee.
Supervisor password:
supervisor password (SVP) protects the system information stored in the BIOS
A
Utility. The user must enter the SVP in order to get access to the BIOS Utility and
change the system configuration.
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.
How to remove the power-on password
To remove a POP that you have forgotten, do the following:
(A) If no SVP has been set:
1. Turn off the computer.
2. Remove the battery pack.
For how to remove the battery pack, see “1010 Battery pack” on page 45.
3. Remove the DIMM slot cover.
For how to remove the DIMM slot cover, see “1050 DIMM slot cover” on page
48.
4. Remove the DIMM.
20 MT 0689, 0690, 0768
Related service information
For how to remove the DIMM, see “1060 DIMM” on page 48.
5. Short J1 pad (a).
a
6. Reinstall the DIMM and the DIMM slot cover.
7. Reinstall the battery pack.
8. Turn on the computer and wait until the POST ends.
After the POST ends, the password prompt does not appear. The POP has been
removed.
(B) If an SVP has been set and is known by the servicer:
1. Turn on the computer; then, while the initial screen is displayed, press the
Lenovo Care
™
button. The ThinkVantage Rescue and Recovery
™
screen opens.
2. Click Access BIOS. The System Restart Required window is displayed.
3. Click Yes. The computer restarts, and the BIOS Utility screen opens.
4. Select Security, using the cursor directional keys to move down the menu.
5. Select Password.
6. Select Power-On Password.
7. Type the current SVP in the Enter Current Password field. then leave the Enter
New Password field blank, and press Enter twice.
8. In the Changes have been saved window, press Enter.
9. Press F10; then, in the Setup confirmation window, select Yes .
How to remove the hard-disk password
Attention: If User only mode is selected and the user HDP has been forgotten
and cannot be made available to the servicer, neither Lenovo nor Lenovo
authorized servicers provide any services to reset the user HDPs or to recover data
from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.
To remove a user HDP that has been forgotten, when the SVP and the master HDP
are known, do the following:
1. Turn on the computer; then, while the initial screen is displayed, press the
Lenovo Care
2. Click Access BIOS. The System Restart Required window is displayed.
3. Click Yes. The computer restarts, and the BIOS Utility screen opens.
4. Select Security, using the cursor directional keys to move down the menu.
5. Select Password.
™
button. The ThinkVantage Rescue and Recovery
™
screen opens.
General descriptions 21
Related service information
6. Select Hard-disk x password, where x is the letter of the hard disk drive. A
pop-up window opens.
7. Select Master HDP.
8. Type the current master HDP in the Enter Current Password field. then leave
the Enter New Password field blank, and press Enter twice.
9. Press F10.
10. Select Yes in the Setup Configuration window.
Both user HDP and master HDP will have been removed.
Power management
Note: Power management modes are not supported for APM operating system.
To reduce power consumption, the computer has three power management modes:
screen blank, standby, and hibernation.
Screen blank mode
If the time set on the “Turn off monitor” timer in the operating system expires, the
LCD backlight turns off.
To end screen blank mode and resume normal operation, press any key.
Standby mode
When the computer enters standby mode, the following events occur in addition to
what occurs in screen blank mode:
v The LCD is powered off.
v The hard disk drive is powered off.
v The CPU stops.
To enter standby mode, press Fn+F4.
In certain circumstances, the computer goes into standby mode automatically:
v If a “suspend time” has been set on the timer, and the user does not do any
operation with the keyboard, the hard disk, the parallel connector, or the
diskette drive within that time.
v 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.)
To cause the computer to return from standby mode and resume operation, do one
of the following:
v Press the Fn key.
v Open the LCD cover.
v Turn on the power switch.
Also, in the following event, the computer automatically returns from standby
mode and resumes operation:
The time set on the resume timer elapses.
v
22 MT 0689, 0690, 0768
Note: The computer does not accept any input immediately after it enters
standby mode. Wait a few seconds before taking any action to reenter
operation mode.
Related service information
Hibernation mode
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.
To cause the computer to enter hibernation mode, do any of the following:
v Press the Fn+F12 keys.
v If you are using the ACPI operating system and have defined one of the
following actions as the event that causes the system to go into hibernation
mode, perform that action.
– Closing the lid.
– Pressing the power button.
the computer goes into hibernation mode automatically in either of the
Also,
following conditions:
v If a “hibernation time” has been set on the timer, and if the user does not do
any operation with the keyboard, the hard disk drive, the parallel connector, or
the diskette drive within that time.
v If the timer conditions are satisfied in suspend mode.
When the power is turned on, the computer returns from 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.
General descriptions 23
Checkout guide
Checkout guide
Testing the computer
Use the following procedures as a guide in identifying and correcting problems
with the Lenovo 3000 computer.
Note: The diagnostic tests are intended to test only Lenovo 3000 products. The use
of non-Lenovo 3000 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. Tr y to re-create the failure by running the diagnostic test
or by repeating the operation.
The Lenovo 3000 computer has a test program called PC-Doctor for DOS (hereafter
called PC-Doctor.) Yo u 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 30.
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 use
of the BIOS Utility before you run PC-Doctor. On the BIOS Utility screen, press F9,
Enter, F10, and then Enter.
Note: When you initialize the computer configuration, some devices are disabled,
such as the serial port. If you test one of these devices, you will need to
enable it by using Configuration utility for DOS. The utility is available on
the following We b site: http://www.lenovo.com/support
Creating the PC-Doctor diagnostics diskette
To create the PC-Doctor disk from the ThinkVantage Rescue and Recovery
workspace , do as follows:
1. Enter the ThinkVantage Rescue and Recovery workspace by pressing the
Lenovo Care button during POST.
2. When the ThinkVantage Rescue and Recovery workspace finishes loading, click
Diagnostic Diskette.
3. Authenticating the digital signature takes about 15 seconds; then the Lenovo
3000 computer will reboot into PC-DOS.
4. A batch file automatically starts up to prompt you through the process of
creating diskettes. Yo u are notified of how many diskettes you will need.
a. You are prompted to insert each diskette in sequence.
b. Typically, all you need to do is to press the Enter key for the floppy drive;
the system then formats and creates the diskette.
c. Each diskette is erased and formatted with the PC-Doctor for DOS boot
image.
5. Once all the diskettes have been created, the Lenovo 3000 computer will reboot.
The user is asked to remove all diskettes from the drive, or to insert the first
diskette created if it is desired to run the diagnostics.
24 MT 0689, 0690, 0768
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