IBM Thinkpad X20 X21 X22 X23 X24 Manual

ThinkPad X20, X21, X22, X23,
X24 Hardware Maintenance
Manual

           

noteBefore using this information and the product it
supports, be sure to read the general information
under Chapter 4, “Notices” on page 137
First Edition (March 2002)
The following paragraph does not apply to the United
Kingdom or any country where such provisions are
inconsistent with local law:
INTERNATIONAL BUSINESS MACHINES CORPORATION
PROVIDES THIS PUBLICATION “AS IS” WITHOUT ANY
WARRANTY OF ANY KIND, EITHER EXPRESS OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
LIMITED WARRANTIES OF...

Contents
Chapter 1. Introduction..........1
Importantserviceinformation.........1
FRU replacement strategy........1
Hard disk drive replacement strategy.....2
How to use error messages........2
How to read POST error messages......2
Safety notices: multilingual translations......3
Safetyinformation............12
General safety............12
Electricalsafety...........13
Safety inspection guide.........14
Handling electrostatic discharge-sensitive devices 15
Grounding requirements.........16
Laser...

1050 Keyboard...........63
1060 KBD Control Panel Assemble.....67
1070 Mini PCI adapter.........69
1080 CDC adapter..........70
1090 BDC adapter..........71
1100 Fan assembly..........72
1110 Wirelesslan assembly for X22, X23, X24 . . 74
1120 LCD assembly..........75
1130 Case Keyboard deck........79
1140 Speaker............82
1150 PC Card slot assembly.......84
1160IRDAPort...........85
1170 RJ11, RJ45...........87
1180 System board..........89
1190 LCD USB cover..........91
1200 Front...

Chapter 1. Introduction
Important service information
ImportantBIOS and device driver fixes are
customer-installable. The BIOS and device drivers
are posted on the IBM support site
http://www.ibm.com/pc/support/
Advise customers to contact the IBM
®HelpCenter®
at 800-772-2227 if they need assistance in obtaining
or installing any diskette fixes.
FRU replacement strategy
Before replacing partsEnsure that all BIOS and device driver fixes are
installed before replacing any FRUs listed in this
manual.
Use...

Hard disk drive replacement strategy
Always try to run a low-level format before replacing a hard
disk drive.
AttentionThe 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. If you select an incorrect drive,
data or programs can be overwritten.
How to use error messages
Use the error codes displayed on the screen to diagnose
failures. If more than one error code is displayed, begin the...

Safety notices: multilingual translations
The following safety notices are provided in English,
French, German, Italian, and Spanish languages.
Safety Notice 1Before 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...

Safety Notice 2Some 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...

Safety Notice 2Algunas baterías de reserva contienen una pequeña
cantidad de níquel y cadmio. No las desmonte, ni
recargue, ni las eche al fuego o al agua ni las
cortocircuite. Deséchelas tal como dispone la
normativa local. Utilice sólo baterías que se
encuentren en la lista de piezas. La utilizaciónde
una batería no apropiada puede provocar la ignición
o explosión de la misma.
Chapter 1. Introduction5 

Safety Notice 3The 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 niàl’eau. Ne la mettez pas
en court-circuit. Pour la...