ThinkPad®A21eService and Troubleshooting Guide
Your ThinkPad at a glanceYour ThinkPad at a glance2ThinkPad®A21e Service and Troubleshooting Guide
FeaturesProcessorv Intel®Celeron™processorMemoryv Built-in: 64 MBv Maximum: 256 MBStorage devicev 2.5-inch hard disk drive: 20 GBDisplayThe color disp
External interfacev Serial connector (EIA-RS232D)v Parallel connector (IEEE 1284A)v External-monitor connectorv PC Card slot ( Type I, Type II, or Typ
SpecificationsSizev Width: 304.8 mm (12.0 in.)v Depth: 254.0 mm (10.0 in.)v Height: 35.6 mm (1.4 in.)Environmentv Maximum altitude without pressurizat
Caring for your ThinkPad computerThough your computer is designed to function reliably in normal workenvironments, you need to use common sense in han
v Use a quality carrying case that provides adequate cushion and protection.Do not pack your computer in a tightly packed suitcase or bag.Handle stora
v Only an authorized IBM ThinkPad repair technician should disassembleand repair your computer.v Do not modify or tape the latches to keep the display
Chapter 2. Solving computer problemsDiagnosing problems ...10Troubleshooting...11Error messages ...11Errors without messages ...
Diagnosing problemsIf you have a problem with your computer, you can test it by usingPC-Doctor for Windows. To run PC-Doctor for Windows, do as follow
TroubleshootingIf you do not find your problem here, refer to access ThinkPad, your on-boardhelp system. Open Access ThinkPad by pressing the ThinkPad
NoteBefore using this information and the product it supports, be sure to read the general information under“Appendix A. Important safety instructions
Message Cause and action0220: Monitor type error The monitor type does not match the type specified in CMOS. Run the IBMBIOS Setup Utility to make sur
Message Cause and action1801: Attached dockingstation is not supported– shut down computerand remove fromdocking stationThe computer is attached to a
Message Cause and actionUNSUPPPORTEDMEMORYCONFIGURATION:Maximum memory size256MB. Shut downcomputer and removeextra memory.The size of the installed m
Problem: When I turn on the machine, only a white cursor appears on ablank screen.Solution: First, reboot your system by pressing Ctrl+Alt+Del. If tha
Problem: Some or all keys on the keyboard do not work.Solution: If the problem occurred immediately after the computer returnedfrom standby mode, ente
Problem: The mouse or pointing device does not work.Solution: Make sure that the pointing-device cable is enabled in the ThinkPadConfiguration Program
If these items are correct, have the computer serviced.Problem: The critical low-battery error message appears, and thecomputer immediately turns off.
For Windows NT:1. Double-click the System icon in the Control Panel.2. Select Intel EtherExpress PRO Adapter, and click Startup...3. Select Disabled.4
For Windows NT:If you have enabled the CD-ROM AutoRun feature, the computer does notenter standby mode through the timer . To enable the timer in this
Computer screen problemsProblem: The screen is blank.Solution: Press Fn+Home key to make the screen brighter. If the problempersists, do the “Solution
Finding information with Access ThinkPadJoin an interactive community of ThinkPad users to access mobile resources,read tips and true stories, and sha
Problem: Incorrect characters appear on the screen.Solution: Did you install the operating system or application programcorrectly? If they are install
Problem: Your computer shuts down before the battery status indicator showsempty, -or- Your computer operates after the battery status indicator shows
Other problemsProblem: The computer locks or does not accept input.Solution: Your computer may lock when it enters standby mode during acommunication
Starting BIOS Setup UtilityYour computer provides a program, called IBM BIOS Setup Utility, thatenables you to select various setup parameters. The pa
Recover pre-installed softwareIf the data on your hard disk drive is damaged or accidentally erased, youcan restore the software that was shipped with
6. Restart the system by pressing Ctrl+Alt+Del or by turning the computeroff and then on again. Your computer will restart with the pre-installedopera
To create a Recovery Repair disketteThe Recovery Repair diskette is used to recover the prompt that is needed toaccess the Product Recovery program, i
Upgrading the hard disk driveYou can increase the storage capacity of your computer by replacing the harddisk drive with one of greater capacity. You
5. Open the computer display; then stand the computer on its side andremove the hard disk drive by pulling the cover away from thecomputer.6. Detach t
Replacing the batteryTo replace the battery, do as follows:1. Turn off the computer, or enter hibernation mode. Then disconnect the acadapter and all
Whenever you have a question about your computer, or wish to view IBMWeb sites, simply press the ThinkPad button to open Access ThinkPad.Click one of
Replacing the battery32ThinkPad®A21e Service and Troubleshooting Guide
Chapter 3. Getting help and service from IBMGetting help and service ...34Getting help on the Web ...34Getting help by fax ...35Callin
Getting help and serviceIf you need help, service, technical assistance, or just want more informationabout IBM products, you will find a wide variety
Getting help by faxIf you have a touch-tone telephone and access to a fax machine, in the U.S.and Canada you can receive by fax marketing and technica
If possible, be near your computer when you make your call in case thetechnical assistance representative needs to help you resolve a computerproblem.
Country or region Language Telephone NumberHong Kong Cantonese 2825-6900Ireland English 01-815 9202Italy Italian 02-482 9202Japan Japanese 0120-887-87
Getting help and service38ThinkPad®A21e Service and Troubleshooting Guide
Appendix A. Important safety instructionsDANGERElectric current from power, telephone, and communication cables is hazardous. Toavoid shock hazard, co
DANGERReduce the risk of fire and electric shock by always following basic safetyprecautions, including the following:v Do not use your computer in or
DANGERFollow the instruction below when installing or reconfiguring the Mini PCI option.To avoid shock hazard, disconnect all the cables and the ac ad
Some of the topics in your help system contain brief video clips that showyou how to perform certain tasks, such as replacing your battery, inserting
Use caution when installing or modifying telephone lines.Avoid using a telephone (other than a cordless type) during an electricalstorm. There may be
DANGEREmits visible and invisible laser radiation when open. Avoid direct eye exposure.Do not stare into the beam or view it directly with optical ins
44 ThinkPad®A21e Service and Troubleshooting Guide
Appendix B. Product warranties and noticesWarranty StatementsThe warranty statements consist of two parts: Part 1 and Part 2. Part 1 variesby country.
During the warranty period IBM or your reseller, if approved by IBM toprovide warranty service, will provide repair and exchange service for theMachin
IBM or your reseller provides certain types of repair and exchange service,either at your location or at a service center, to keep Machines in, or res
Neither IBM nor your reseller is responsible for any of your confidential,proprietary or personal information contained in a Machine which you returnt
subsequently or otherwise. Unless IBM specifies otherwise, the following warrantiesapply only in the country where you acquire the Machine. Nothing in
EXCLUSION OR LIMITATION MAY NOT APPLY TO YOU. IN THATEVENT, SUCH WARRANTIES ARE LIMITED IN DURATION TO THEWARRANTY PERIOD. NO WARRANTIES APPLY AFTER T
a. follow the problem determination, problem analysis, and servicerequest procedures that IBM or your reseller provides,b. secure all programs, data,
vi ThinkPad®A21e Service and Troubleshooting Guide
OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVELIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.Part2-Worldwide Country-Unique TermsASIA PACIFICAUSTR
Guarantees Act 1993 will not apply in respect of any goods which IBMprovides, if you require the goods for the purposes of a business as defined intha
2. as to any other actual direct damages, IBM’s liability will be limited to thetotal amount you paid for the Machine that is the subject of the claim
The following sentence is added to the end of the first paragraph of item 2:IBM’s liability under this item is limited to the violation of essentialco
Unless otherwise provided by mandatory law, IBM and your reseller are notliable for any of the following: (items 1 and 2 unchanged) 3) indirect damage
NoticesThis publication was developed for products and services offered in theU.S.A.IBM may not offer the products, services, or features discussed in
Web sites. The materials at those Web sites are not part of the materials forthis IBM product, and use of those Web sites is at your own risk.Electron
Industry Canada Class B Emission Compliance StatementThis Class B digital apparatus complies with Canadian ICES-003.Avis de conformité à la réglementa
3. The REN is useful to determine the quantity of devices you may connectto your telephone line and still have those devices ring when your numberis c
Industry Canada requirementsNoticeThe Industry Canada label identifies certified equipment. This certificationmeans that the equipment meets certain t
ContentsFinding information with Access ThinkPad iiiChapter 1. Overview of your new ThinkPadcomputer ...1Your ThinkPad at a glance ...2F
Avant d’installer ce matériel, l’utilisateur doit s’assurer qu’il est permis de leraccorder aux installations de l’entreprise locale de télécommunicat
the product by Telecom, nor does it provide any sort of warranty. Aboveall, it provides no assurance that any item will work correctly in allrespects
Notice for European Union countriesHereby Ambit declares that this ″J07M041.00″ modem is in conformity withthe essential requirements and other releva
TrademarksThe following terms are trademarks of the IBM Corporation in the UnitedStates or other countries or both:IBM ThinkPadHelpCenter TrackPointPS
66 ThinkPad®A21e Service and Troubleshooting Guide
IndexAAccess ThinkPad iiiBbatteryproblems 22BIOS Setup 25Ccarrying the computer 6cleaning the computer 8computer display problems 21configurationsetup
68 ThinkPad®A21e Service and Troubleshooting Guide
Part Number: 12P1906(1P) P/N: 12P1906
viii ThinkPad®A21e Service and Troubleshooting Guide
Chapter 1. Overview of your new ThinkPad computerYour ThinkPad at a glance ...2Features.....3Specifications ....5Caring for your
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