IBM Thinkpad X20 X21 X22 X23 X24 Manual

							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:
Chapter 1. Introduction17 
						

							CAUTION:
Use of controls or adjustments or performance of
procedures other than those specified herein might
result in hazardous radiation exposure.
O uso de controles, ajustes ou desempenho de
procedimentos diferentes daqueles aqui especificados
pode resultar em perigosa exposição à radiação.
Pour éviter tout risque d’exposition au rayon laser,
respectez les consignes de réglage et d’utilisation des
commandes, ainsi que les procédures décrites.
Werden Steuer- und Einstellelemente anders als hier
festgesetzt verwendet, kann gefährliche
Laserstrahlung auftreten.
L’utilizzo di controlli, regolazioni o l’esecuzione di
procedure diverse da quelle specificate possono
provocare l’esposizione a
El uso de controles o ajustes o la ejecución de
procedimientos distintos de los aquí especificados
puede provocar la exposición a radiaciones
peligrosas.
Laser radiation
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.
18ThinkPad X20, X21, X22, X23, X24 
						

							Some CD-ROM drives contain an embedded Class 3A or
Class 3B laser diode. Note the following.
Chapter 1. Introduction
19 
						

							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
instrumentosóticos 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
oderüber optische Instrumente in den Laserstrahl
sehen und den Strahlungsbereich meiden.
Kinyitáskor lézersugár!Nenézzen bele se szabad
szemmel, se optikai eszközökkel. Kerülje a
sugárnyalábbal valóérintkezést !
Aprendo l’unitàvengono emesse radiazioni laser.
Non fissare il fascio, non guardarlo direttamente
con strumenti ottici e evitare l’esposizione diretta al
fascio.
Radiaciónláser al abrir. No mire fijamente ni
examine con instrumentalóptico el haz de luz.
Evite la exposición directa al haz.
20ThinkPad X20, X21, X22, X23, X24 
						

							Chapter 2. 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:
vOnly certified trained personnel should service the
computer.
vRead the entire FRU removal and replacement page
before replacing any FRU.
vUse new nylon-coated screws when you replace
FRUs.
vBe extremely careful during such write operations
as copying, saving, or formatting.Drives in the
computer that you are servicing may have had their start
sequence altered. If you select an incorrect drive, data
or programs might be overwritten.
vReplace 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.
vA 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 reoccurs. 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.
vBe careful not to replace a nondefective FRU.
vService applied by an unauthorized/trained Thinkpad
technician may potentially void your warranty
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
21  
						

							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. 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.
Before checking problems with the computer, determine
whether the damage is covered under the warranty by
referring to the following:
The following are not covered under warranty:
vLCD panel cracked from the application of excessive
force or from being dropped
vScratched (cosmetic) parts
vCracked or broken plastic parts, broken latches, broken
pins, or broken connectors caused by excessive force
vDamage caused by liquid spilled into the system
vDamage caused by the improper insertion of a PC Card
or the installation of an incompatible card
vDamage caused by foreign material in the diskette drive
vDiskette drive damage caused by pressure on the
diskette drive cover or by the insertion of a diskette with
multiple labels
vDamaged or bent diskette eject button
vFuses blown by attachment of a non-supported device
vForgotten computer password (making the computer
unusable)
The following symptoms might indicate damage
caused by non-warranted activities:
vMissing parts might be a symptom of unauthorized
service or modification.
vIf the spindle of a hard disk drive becomes noisy it may
have been subjected to excessive force or from being
dropped.
22ThinkPad X20, X21, X22, X23, X24 
						

							vI9990303 errors can be caused by exposure to strong
magnetic fields.
Chapter 2. General descriptions
23 
						

							Related service information
This section provides information about the following:
vService Website
vPasswords
vPower management
Service Web site
The latest maintenance diskette is available at
http://www.pc.ibm.com/partner/infotips/
The latest system program service diskette is available at
http://www.pc.ibm.com/us/support/thinkpad/tpopsys.html
or athttp://www.pc.ibm.com/partner/infotips/
Product recovery program
Restoring the Pre-installed Software
To restore the pre-installed software, you can use either
the Product Recovery program or a Recovery CD. The
Product Recovery program is in a section of the hard disk
drive (the Service Partition) that is not displayed by
Windows Explorer. Use the Recovery CD if it was provided
with the computer.
Note:The recovery process might take up to 2 hours.
To use the Product Recovery program to restore the
pre-installed software, do the following:
1. Save all files and shut down the desktop.
2. Turn off the computer.
3. Turn on the computer. Quickly pressF11when this
message is displayed on the screen: ...“To start the
Product Recovery program, press F11”.....This
message is displayed for only a few seconds.
Note:If this message does not appear, you can use a
Recovery Repair diskette to get access to the
Product Recovery program. (see“Creating a
Recovery Repair diskette”on page 26 for
instructions for making the Recovery Repair
diskette)
4. From the list displayed on the screen, select the
operating system you want to recover.
5. Select the recovery options you want, and follow the
instructions on the screen.
24ThinkPad X20, X21, X22, X23, X24 
						

							Using Recovery CD
To create Service Partition and install the preloaded
system from Recovery CD, do the following;
To create Service Partition [SP]:
1. Erase all partitions on the hard-disk drive using FDISK
or similar application.
2. Boot with Recovery CD (and boot diskette if required).
3. A menu will appear stating“Your computer originally
included a Product Recovery program ... Reinstall
the Product Recovery Program? (Y/N) [ ]”.
Note:If the hard-disk drive contains any partitions, you
will not receive this menu - go to step 1.
4. Enter“Y”and Service Partition will be created and
loaded with Product Recovery Program files.
Note:If you do not want to create Service Partition,
press“N”, and then go to the“Install preloaded
system from CD”procedure.
5. Press“ENTER„at next window to continue.
vService Partition will be created. System will
automatically reboot during this process.
vRecovery process will copy some files to the Service
Partition, PKUNZIP others
vFollow prompts - you may be prompted to change
CDs.
vSystem will reboot. When completed, continue with
“Install preloaded system from CD”procedure to
install preloaded system.
Install preloaded system from CD:
1. Boot with Recovery CD (and boot diskette if required)
2. If the hard-disk drive is blank, a menu will appear
stating“Your computer originally included a
Product Recovery program ... Reinstall the Product
Recovery Program? (Y/N) [ ]”.
vTo install Service Partition, go to step 4 of“To create
Service Partition [SP]”procedure.
vTo preload hard-disk drive without installing Service
Partition, press“N”.
3. If a menu appears asking which operating system to
install, highlight proper operating system and press
“ENTER”.
4. A menu will appear stating“Full Recovery:”.Press
“ENTER”to select.
5. Enter“Y”at the three windows which follow.
6. Follow prompts to complete the Recovery Process.
Chapter 2. General descriptions
25 
						

							Creating a Recovery Repair diskette
The Recovery Repair diskette is used to recover the
prompt that is needed to access the Product Recovery
program, if the prompt does not appear. Make a Recovery
Repair diskette and save it for future use.
To make a Recovery Repair diskette:
1. Shut down and turn off the computer.
2. Attach the external diskette drive to the computer.
3. At the prompt, pressF11. (The option to pressF11
appears for only a few seconds. You must pressF11
quickly.) The Product Recovery program main menu
appears.
4. If you are using Windows 2000 Professional, you will
be prompted to select the appropriate operating system
setting. This menu does not appear for Windows 98
SE.
5. Select System Utilities from the main menu. Press
Enter.
6. Select Create a Recovery Repair diskette. PressEnter.
7. Follow the on-screen instructions.
8. When the process is completed, label the diskette as
the Recovery Repair diskette and save it for future use.
To use the Recovery Repair diskette:
1. Shut down and turn off the computer.
2. Attach the external diskette drive to the computer.
3. Insert the Recovery Repair diskette into the drive; then
turn on the computer.
4. Follow the on-screen instructions.
Passwords
As many as three passwords may be set for any ThinkPad
computer: the power-on password (POP), the hard disk
password (HDP), and the supervisor password (SVP).
When the power-on password, the hard disk password, or
the supervisor password is used, a password prompt
appears on the screen whenever the computer is turned
on. The computer does not start until the password is
entered.
Power-on password:A power-on password (POP)
protects the system from being powered on by an
unauthorized person. The password must be entered
before an operating system can be booted.
Hard disk password:There are two hard-disk passwords
(HDPs):
26ThinkPad X20, X21, X22, X23, X24