Loading...IBM
ThinkPad® T22
Service and Troubleshooting Guide
Note
Before using this information and the product it supports, be sure to read the general information under ªAppendix A. Important safety instructionsº on page 41 and ªAppendix B. Product warranties and noticesº on page 47 .
DANGER
vTo avoid electric shock hazard, connect and disconnect cables appropriately when installing, moving or opening the covers of this product or attached devices. Use the power cord with a properly grounded outlet.
vDo not leave the base of your computer in contact with your lap or any part of your body for an extended period when the computer is functioning or when the battery is charging. Your computer dissipates some heat during normal operation. This heat is a function of the level of system activity and battery charge level. Extended contact with your body, even through clothing, could cause discomfort or, eventually, a skin burn.
vTo reduce the risk of electric shock, do not use your computer in or near water.
vTo avoid electric shock, do not use your computer with the telephone cable connection during an electrical storm. Do not connect the cable to or disconnect it from the telephone outlet on the wall during an electrical storm.
vStore packing materials safely out of the reach of children to prevent the risk of suffocation from plastic bags.
vThe battery pack contains a small amount of harmful substances. There is danger of an explosion if the battery pack is incorrectly replaced, exposed to fire or water, short-circuited or disassembled. Keep the battery pack away from children and do not put it in trash that is disposed of in landfills.
vTo reduce the risk of fire, use only No. 26 AWG or thicker telephone cable.
vThe fluorescent lamp in the LCD contains mercury. Do not put it in trash that is disposed of in landfills. Rough handling or dropping the computer can cause the LCD to break and the internal fluid to get into your eyes or on your hands. Immediately wash the affected areas with water. If symptoms persist, seek medical care.
vDo not open the CD-ROM or DVD drive unit, as this might result in hazardous radiation exposure.
vAvoid direct eye exposure with the laser beam contained in some drives.
First Edition (January 2001)
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 ²AS IS² WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you.
This information 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 and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice.
IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you.
© Copyright International Business Machines Corporation 2001. All rights reserved.
US Government Users Restricted Rights ± Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
Finding information with Access ThinkPad
Join an interactive community of ThinkPad users to access mobile resources, read tips and true stories, and share your own advice.
Customize your ThinkPad with accessories, software and services.
A one-click guide to service on the Web for your ThinkPad.
Your gateway into a comprehensive help system, offering information about all of your ThinkPad computer hardware and software features.
A quick way to search the help system.
© Copyright IBM Corp. 2001 |
iii |
Whenever you have a question about your computer, or wish to view IBM Web sites, simply press the ThinkPad button to open Access ThinkPad.
Click one of the Internet buttons to join an interactive ThinkPad Web community, or to directly access information about accessories and software updates, small business offerings, and help and support.
Access ThinkPad includes a comprehensive, on-board help and information center for your computer. It travels with you, eliminating the need to carry reference manuals.
Find information about your ThinkPad computer and its features by using the Quick Search or clicking one of the topics shown. This opens another window, where you can view hundreds of help topics by browsing the table of contents, using the index, or performing a search.
View help topics to learn how to:
vUse your computer hardware features
vConnect to the internet or a local network
vSet up a projector for your presentation
vUse passwords and other security features
vInstall, remove and recover software
vUpgrade your system
vExtend the life of your battery
vTroubleshoot problems
vContact IBM for service and support
vPerform many other tasks
iv ThinkPad® T22 Service and Troubleshooting Guide
Some of the topics in your help system contain brief video clips that show you how to perform certain tasks, such as replacing your battery, inserting a PC card, or upgrading your memory. Use the controls shown to play, pause, and rewind the video clip.
Finding information with Access ThinkPad v
vi ThinkPad® T22 Service and Troubleshooting Guide
Contents
Finding information with Access ThinkPad iii
Chapter 1. Overview of your new ThinkPad computer . . . . . . . . . . . . . 1
Your ThinkPad at a glance . . . . . . . 2 Features. . . . . . . . . . . . . . 3 Specifications . . . . . . . . . . . . 5 Caring for your ThinkPad computer . . . . 6
Chapter 2. Solving computer problems |
. |
. 9 |
Diagnosing problems . . . . . . . . |
. |
10 |
Troubleshooting . . . . . . . . . . . 11 |
||
Error messages . . . . . . . . . |
. |
11 |
Errors without messages . . . . . . |
. |
14 |
Password problems . . . . . . . |
. |
15 |
A power switch problem . . . . . . |
. 16 |
|
Keyboard problems . . . . . . . |
. |
16 |
TrackPoint problems . . . . . . . |
. |
17 |
Standby or hibernation problems . . . |
. 18 |
|
Computer screen problems . . . . . |
. 22 |
|
Battery problems . . . . . . . . |
. |
23 |
Hard disk drive problems . . . . . |
. 24 |
|
Other problems . . . . . . . . . |
. |
25 |
Starting BIOS Setup Utility . . . . . . |
. |
27 |
Recover pre-installed software . . . . . |
. |
28 |
Upgrading the hard disk drive . . . . . |
. 31 |
|
Replacing the battery . . . . . . . . |
. |
33 |
Chapter 3. Getting help and service from
IBM. . . . . . . . . . . . . . . 35
Getting help and service . . . . . . . . 36
Getting help on the Web . . . . . . . |
. |
36 |
Getting help by fax . . . . . . . . |
. |
37 |
Calling IBM . . . . . . . . . . . |
. |
37 |
Appendix A. Important safety instructions |
|
41 |
Modem safety information . . . . . . |
. 43 |
|
Laser compliance statement . . . . . . |
. |
44 |
Appendix B. Product warranties and
notices . . . . . . . . . . . . . 47
Warranty Statements . . . . . . . . |
. |
47 |
IBM Statement of Limited Warranty for |
|
|
United States, Puerto Rico and Canada |
|
|
(Part 1 - General Terms) . . . . . . |
. |
47 |
IBM Statement of Warranty Worldwide |
|
|
except Canada, Puerto Rico, Turkey and |
|
|
United States (Part 1- General Terms) . |
. 50 |
|
Part 2 - Worldwide Country-Unique Terms |
|
54 |
Notices. . . . . . . . . . . . . . 59 |
||
Processing date data . . . . . . . |
. |
59 |
References to the Web site addresses . . . 59 |
||
Electronic emission notices . . . . . |
. |
60 |
Telecommunication notices . . . . . |
. |
61 |
Industry Canada requirements . . . . |
. 63 |
|
Notice for Australia . . . . . . . |
. |
64 |
Notice for Users in New Zealand . . . . 64 |
||
Notice for European Union countries. . . 66 Trademarks . . . . . . . . . . . . 67
Index . . . . . . . . . . . . . . 69
© Copyright IBM Corp. 2001 |
vii |
viii ThinkPad® T22 Service and Troubleshooting Guide
Chapter 1. Overview of your new ThinkPad computer
Your ThinkPad at a glance |
. . . |
. . . |
. |
2 |
Specifications . . . . . . . . . . |
. |
. |
5 |
Features. . . . . . . |
. . . |
. . . |
. |
3 |
Caring for your ThinkPad computer . . |
. |
. |
6 |
© Copyright IBM Corp. 2001 |
1 |
Your ThinkPad at a glance
Your ThinkPad at a glance
Front view
Rear view
2 ThinkPad® T22 Service and Troubleshooting Guide
Features
Features
Processor
v Intel® Pentium® III processor
Memory
vBuilt-in: 128 MB
vMaximum: 512 MB
Storage device
v 2.5-inch hard disk drive: Up to 32 GB, depending on the model
Display
The color display uses TFT technology:
vSize: 13.3 or 14.1 inch, depending on the model
vResolution:
±LCD: Up to 1400-by-1050, depending on the model
±External monitor: Up to 1600-by-1200
vBrightness control
Keyboard
v84-key, 85-key, or 89-key
vTrackPoint®
vFn key function
vThinkPad button
vVolume control buttons
vThinkLight™
Chapter 1. Overview of your new ThinkPad computer 3
Features
Diskette drive
To get the best performance from your diskette drives, use high-quality diskettes (such as IBM diskettes) that meet or exceed the following standards:
v1-MB, 3.5-inch, unformatted diskette:
±ANSI (American National Standards Institute) X3.137
±ISO (International Standards Organization) 8860
±ECMA (European Computer Manufacturers Association) 100
v2-MB, 3.5-inch, unformatted diskette:
±ANSI X3.171
±ISO 9529
±ECMA 125
External interface
vSerial connector (EIA-RS232D)
vParallel connector (IEEE 1284A)
vExternal-input-device connector
vExternal-monitor connector
vPC Card slots (Type I, Type II, or Type III PC Card)
vHeadphone jack
vLine-in jack
vMicrophone jack
vVideo-out connector
vUniversal Serial Bus (USB) connector
vUltraport™ connector
vInfrared port
vRJ11 telephone connector (available if the modem Mini-PCI Card or the Combo Mini-PCI Card is installed)
vRJ45 Ethernet connector (available if the Ethernet Mini-PCI Card or the Combo Mini-PCI Card is installed)
vUltrabay™ 2000
vExpansion connector
4 ThinkPad® T22 Service and Troubleshooting Guide
Specifications
Specifications
Size
vWidth: 304.8 mm (12.0 in.)
vDepth: 248.9 mm (9.8 in.)
vHeight: 33.0 mm (1.3 in.)
Environment
vMaximum altitude without pressurization: 3048 m (10,000 ft)
vTemperature
±At altitudes up to 2438 m (8000 ft)
-Operating with no diskette: 5° to 35°C (41° to 95°F)
-Operating with a diskette: 10° to 35°C (50° to 95°F)
-Not operating: 5° to 43°C (41° to 110°F)
±At altitudes above 2438 m (8000 ft)
-Maximum operating temperature, 31.3°C (88° F)
Note: When you charge the battery pack, its temperature must be at least 10°C (50°F).
vRelative humidity:
±Operating with no diskette in the drive: 8% to 95%
±Operating with a diskette in the drive: 8% to 80%
Heat output
v 56 (191 Btu/hr) maximum
Electrical (ac adapter)
vSin-wave input at 50 to 60 Hz
vInput rating of the ac adapter: 100-240 V ac, 50 to 60 Hz
Battery pack
vLithium-ion (Li-Ion) battery pack
±Nominal voltage: 10.8 V dc
±Capacity: 3.6 AH
Chapter 1. Overview of your new ThinkPad computer 5
Caring for your ThinkPad computer
Caring for your ThinkPad computer
Though your computer is designed to function reliably in normal work environments, you need to use common sense in handling it. By following these important tips, you will get the most use and enjoyment out of your computer.
Important tips:
Be careful about where and how you work
vDo not leave the base of your computer in contact with your lap or any part of your body for an extended period when the computer is functioning or when the battery is charging. Your computer dissipates some heat during normal operation. This heat is a function of the level of system activity and battery charge level. Extended contact with your body, even through clothing, could cause discomfort or, eventually, a skin burn.
vPlace liquids away from your computer to avoid spills, and keep your computer away from water (to avoid the danger of electrical shock).
vStore packing materials safely out of the reach of children to prevent the risk of suffocation from plastic bags.
vKeep your computer away from magnets, activated cellular phones, electrical appliances, or speakers (within 13cm/5 in).
vAvoid subjecting your computer to extreme temperatures (below 5°C/41°F or above 35°C/95°F).
Be gentle with your computer
vAvoid placing any objects (including paper) between the display and the keyboard or under the keyboard.
vDo not drop, bump, scratch, twist, hit, vibrate, push or place heavy objects on your computer, display, or external devices.
vYour computer display is designed to be opened and used at an angle slightly greater than 90 degrees. Do not open the display beyond 135 degrees, as this might damage the computer hinge.
Carry your computer properly
vBefore moving your computer, be sure to remove any media, turn off attached devices, and disconnect cords and cables.
vBe sure your computer is in standby or hibernation mode, or turned off, before moving it. This will prevent damage to the hard disk drive and data loss.
vWhen picking up your open computer, hold it by the bottom. Do not pick up or hold your computer by the display.
6 ThinkPad® T22 Service and Troubleshooting Guide
Caring for your ThinkPad computer
vUse a quality carrying case that provides adequate cushion and protection. Do not pack your computer in a tightly packed suitcase or bag.
Handle storage media and drives properly
vIf your computer comes with a diskette drive, avoid inserting diskettes at an angle and attaching multiple or loose diskette labels, as these can lodge in the drive.
vIf your computer comes with a CD-ROM or DVD-ROM drive, do not touch the surface of a CD or the lens on the CD-ROM or DVD-ROM tray.
vWait until you hear the CDor DVD-ROM click into the center pivot of the CDor DVD-ROM drive before closing the CDor DVD-ROM tray
vWhen installing your hard disk, diskette, CD-ROM, or DVD-ROM drive, follow the instructions shipped with your hardware, and apply pressure only where needed on the device. See Access ThinkPad, your on-board help system, for information on replacing your hard disk drive (open Access ThinkPad by pressing the ThinkPad button).
Take care in setting passwords
vRemember your passwords. If you forget a supervisor or hard disk password, IBM will not reset it, and you may have to replace your system board or hard disk drive.
vIf you are an administrator, remember that setting a supervisor password can prevent unauthorized initialization.
Other important tips
vYour computer modem may use only an analog telephone network, or public-switched telephone network (PSTN). Do not connect the modem to a PBX (private branch exchange) or any other digital telephone extension line because this could damage your modem. Analog phone lines are often used in homes, while digital phone lines are often used in hotels or office buildings. If you are not sure which kind of phone line you are using, contact your telephone company.
vYour computer might have both an Ethernet connector and a modem connector. If so, be sure to connect your communication cable to the correct one, so your connector is not damaged. See Access ThinkPad, your on-board help system, for information on the location of these connectors (press the ThinkPad button to open Access ThinkPad).
vRegister your ThinkPad products with IBM (refer to the Web page: www.pc.ibm.com/register). This can help authorities return your computer to you if it is lost or stolen. Registering your computer also enables IBM to notify you about possible technical information and upgrades.
vOnly an authorized IBM ThinkPad repair technician should disassemble and repair your computer.
Chapter 1. Overview of your new ThinkPad computer 7
Caring for your ThinkPad computer
vDo not modify or tape the latches to keep the display open or closed.
vTake care not to turn your computer over while the ac adapter is plugged in. This could break the adapter plug.
vTurn off your computer if you are replacing a device in a device bay, or else verify that the device is warmor hot-swappable.
vIf you exchange drives in your computer, reinstall the plastic bezel faces (if supplied).
vStore your external and removable hard disk, diskette, CD-ROM, and DVD-ROM drives in the appropriate containers or packaging when they are not being used.
Cleaning your computer
Occasionally clean your computer as follows:
vUse a soft cloth moistened with nonalkaline detergent to wipe the exterior of the computer.
vAvoid spraying cleaner directly on the display or the keyboard.
vGently wipe the display with a dry, soft cloth.
8 ThinkPad® T22 Service and Troubleshooting Guide
Chapter 2. Solving computer problems
Diagnosing problems . . . . . . . |
. |
. |
10 |
Computer screen problems . . . . |
. |
. |
22 |
Troubleshooting . . . . . . . . . |
. |
. |
11 |
Battery problems . . . . . . . |
. |
. |
23 |
Error messages . . . . . . . . |
. |
. |
11 |
Hard disk drive problems . . . . |
. |
. |
24 |
Errors without messages . . . . . |
. |
. |
14 |
Other problems . . . . . . . . |
. |
. |
25 |
Password problems . . . . . . |
. |
. |
15 |
Starting BIOS Setup Utility . . . . . |
. |
. |
27 |
A power switch problem . . . . . |
. |
. |
16 |
Recover pre-installed software . . . . |
. |
. |
28 |
Keyboard problems . . . . . . |
. |
. |
16 |
Upgrading the hard disk drive . . . . |
. |
. |
31 |
TrackPoint problems . . . . . . |
. |
. |
17 |
Replacing the battery . . . . . . . |
. |
. |
33 |
Standby or hibernation problems . . |
. |
. 18 |
|
|
|
|
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© Copyright IBM Corp. 2001 |
9 |
Solving computer problems
Diagnosing problems
If you have a problem with your computer, you can test it by using PC-Doctor® for Windows. To run PC-Doctor for Windows, do as follows:
1.Click Start.
2.Move the cursor to Programs and then to PC-Doctor for Windows.
3.Click PC-Doctor for Windows.
4.Choose either the Quick Test or the Standard Test.
Attention
Running the Quick Test set can take 10 minutes or longer. Make sure you have time to run the entire test; do not interrupt the test while it is running.
The Quick Test set runs many tests of critical hardware components, but it does not run all of the diagnostic test in PC-Doctor for Windows. If PC-Doctor for Windows reports that all of the tests in the Quick Test set have been run and that it has found no problems, consider running additional tests.
If you are preparing to contact IBM for support, be sure to print the test log so that you can rapidly provide information to the help technician.
10 ThinkPad® T22 Service and Troubleshooting Guide
Solving computer problems
Troubleshooting
If you do not find your problem here, refer to access ThinkPad, your on-board help system. Open Access ThinkPad by pressing the ThinkPad button. The following section only describes problems that might prevent you from accessing this help system.
Error messages
Note:
1.In the charts, x can be any character.
2.The version of PC-Doctor referred to here is PC-Doctor for Windows.
Message |
Solution |
|
|
0175: Bad CRC1, stop |
The EEPROM checksum is not correct (block #6). Have the computer |
POST task |
serviced. |
|
|
0187: EAIA data access |
The access to EEPROM is failed. Have the computer serviced. |
error |
|
|
|
0188: Invalid RFID |
The EEPROM checksum is not correct (block # 0 and 1, or block # 6). The |
serialization information |
system board should be replaced, and the box serial number needs to be |
area or bad CRC2. |
reinstalled. Have the computer serviced. |
|
|
0189: Invalid RFID |
The EEPROM checksum is not correct (block # 4 and 5). The system board |
configuration |
should be replace, and the UUID needs to be reinstalled. Have the computer |
information area |
serviced. |
|
|
0190: Critical low-battery |
The computer turned off, because the battery is low. Connect the ac adapter |
error |
to the computer and charge the battery, or replace the battery with a fully |
|
charged one. |
|
|
0193: RF antenna has |
The RFID antenna that you installed has been removed. Enter the |
been removed |
supervisor password to return your computer to the normal operation. |
|
|
0194: The computer is |
The computer have been carried through the security portal gate. Enter the |
carried through the |
supervisor password to return your computer to the normal operation. |
security gate |
|
|
|
0200: Hard disk error |
The hard disk is not working. Make sure the hard disk drive is attached |
|
firmly. Run the BIOS Setup Utility; then make sure the hard disk drive is |
|
not disabled in the Startup menu. |
|
|
Chapter 2. Solving computer problems 11
Solving computer problems
Message |
Solution |
|
|
021x: Keyboard error |
Make sure that no object is placed on the keyboard or on the external |
|
keyboard, if you have one. Turn off the computer, and turn off all attached |
|
devices. Turn on the computer first; then turn on the attached devices. |
|
If you still see the same error code, do the following: |
|
If an external keyboard is connected, do the following: |
|
v Turn off the computer and disconnect the external keyboard; then turn on |
|
the computer. Make sure that the built-in keyboard operates correctly. If it |
|
was, have the external keyboard serviced. |
|
v Make sure that the external keyboard is connected to the correct |
|
connector. |
|
Test the computer, using PC-Doctor. |
|
v If the computer stops during the test, have the computer serviced. |
0220: Monitor type error |
The monitor type does not match the type specified in CMOS. Run the IBM |
|
BIOS Setup Utility to make sure that your monitor type matches the type |
|
specified in the utility. |
|
|
0230: Shadow RAM error |
The shadow RAM failed. Test your computer's memory with PC-Doctor. If |
|
you added a memory module just before turning the computer on, reinstall |
|
it. Then test the memory with PC-Doctor. |
|
|
0231: System RAM error |
The system RAM failed. Test your computer's memory with PC-Doctor. If |
|
you added a memory module just before turning the computer on, reinstall |
|
it. Then test the memory with PC-Doctor. |
|
|
0232: Extended RAM |
The extended RAM failed. Test your computer's memory with PC-Doctor. If |
error |
you have increased memory just before turning the computer on, reinstall it. |
|
Then test the memory with PC-Doctor. |
|
|
0250: System battery |
The system battery is dead. Replace the battery and run IBM BIOS Setup |
error |
Utility to verify the configuration. If you still have a problem, have the |
|
computer serviced. |
|
|
0251: System CMOS |
The system CMOS might have been corrupted by an application program. |
checksum bad |
The computer uses the default settings. Run IBM BIOS Setup Utility to |
|
reconfigure the settings. If you still see the same error code, have the |
|
computer serviced. |
|
|
0260: System timer error |
Have the computer serviced. |
|
|
0270: Real time clock |
Have the computer serviced. |
error |
|
|
|
0271: Date and time error |
Neither the date nor the time is set in the computer. Set the date and time, |
|
using the IBM BIOS Setup Utility. |
|
|
12 ThinkPad® T22 Service and Troubleshooting Guide
|
Solving computer problems |
|
|
Message |
Solution |
|
|
0280: Previous boot |
Your computer was previously unable to complete the boot process. |
incomplete |
Turn the computer off; then turn it on to start the IBM BIOS Setup Utility. |
|
|
|
Verify the configuration and then restart the computer either by choosing |
|
the Exit Saving Changes option under the Restart item or by pressing F10. |
|
If you still see the same error code, have the computer serviced. |
|
|
02D0: System cache error |
The cache is disabled. Have the computer serviced. |
|
|
02F4: EISA CMOS not |
Have the computer serviced. |
writable |
|
|
|
02F5: DMA test failed |
Have the computer serviced. |
|
|
02F6: Software NMI |
Have the computer serviced. |
failed |
|
|
|
02F7: Fail-safe timer NMI |
Have the computer serviced. |
failed |
|
|
|
The power-on password |
A power-on password or a supervisor password is set. Type the password |
prompt |
and press Enter to use the computer. If the power-on password is not |
|
accepted, a supervisor password might have been set. Type the supervisor |
|
password and press Enter. If you still see the same error message, have the |
|
computer serviced. |
|
|
The hard disk password |
A hard disk password is set. Type the password and press Enter to use the |
prompt |
computer. |
|
If you still see the same error message, have the computer serviced. |
|
|
The DOS full-screen |
If you use a DOS application that supports only 640x480 resolution (VGA |
looks smaller. |
mode), the screen image might look slightly distorted or might appear |
|
smaller than the display size. This is to maintain compatibility with other |
|
DOS applications. To expand the screen image to the same size as the actual |
|
screen, start the ThinkPad Configuration Program and click LCD; then select |
|
the Screen expansion function. (The image might still look slightly |
|
distorted.) |
|
Note: If your computer has screen expansion function, you can use the |
|
Fn+F8 keys to expand the screen image. |
|
|
Hibernation error |
The system configuration changed between the time your computer entered |
|
hibernation mode and the time it left this mode, and your computer cannot |
|
resume normal operation. |
|
v Restore the system configuration to what it was before your computer |
|
entered hibernation mode. |
|
v If the memory size has been changed, re-create the hibernation file. |
Chapter 2. Solving computer problems 13
Solving computer problems
Message |
Solution |
|
|
|
|
Operating system not |
Verify the following: |
|
found. |
v The hard disk drive is correctly installed. |
|
|
v A startable diskette is in the diskette drive |
|
|
If you still see the same error message, check the boot sequence, using IBM |
|
|
BIOS Setup Utility. |
|
|
|
|
Fan error |
The cooling fan is failing. Have the computer serviced. |
|
|
|
|
EMM386 Not InstalledÐ |
Edit C:\CONFIG.SYS and change a line from |
|
Unable to Set Page |
device=C:\WINDOWS\EMM386.EXE RAM |
|
Frame Base Address. |
||
|
||
|
to |
|
|
device=C:\WINDOWS\EMM386.EXE NOEMS |
|
|
and save this file. |
|
|
|
|
CardBus Configuration |
Press F1 to go to the IBM BIOS Setup Utility. Press F9 and then Enter to |
|
ErrorÐDevice Disabled |
load the default setting. |
|
|
Press F10 and then Enter to restart the system. |
|
|
|
Errors without messages
Problem: When I turn on the machine, nothing appears on the screen and the machine does not beep while starting up.
Note: If you are not sure whether you heard any beeps, turn off the computer; then turn it on again, and listen again.
Solution: If a power-on password is set, press any key to display the power-on password prompt, and then type the correct password and press
Enter.
If the power-on password prompt does not appear, the brightness control lever might be set to minimum brightness. Adjust the brightness level by pressing the Fn+Home.
If the screen still remains blank, make sure that:
vThe battery is installed correctly.
vThe ac adapter is connected to the computer and the power cord is plugged into a working electrical outlet.
vThe computer power is on. (Turn on the power switch again for confirmation.)
14 ThinkPad® T22 Service and Troubleshooting Guide
Solving computer problems
If these items are properly set, and the screen remains blank, have the computer serviced.
Problem: When I turn on the machine, nothing appears on the screen, but I hear two or more beeps or a continuous beep while starting up.
Solution: If you are using Ethernet:
vMake sure that the Ethernet cable is connected firmly.
vContact your network administrator.
If you are not using Ethernet:
v Make sure that Alert on LAN2 is disabled in the IBM BIOS Setup Utility.
If the screen is still blank, and beeps are not stopped, have the computer serviced.
Problem: When I turn on the machine, only a white cursor appears on a blank screen
Solution: First, reboot your system by pressing Ctrl+Alt+Del. If that does not work, hold down the power switch for more than 4 seconds. If this does not resolve the problem, you may need to reinstall your operating system.
Problem: My screen goes blank while the computer is on.
Solution: Your screen saver or power management may be enabled. Move the TrackPoint or press a key to exit the screen saver, or press the power switch to resume from standby or hibernation.
Password problems
Problem: I forgot my password.
Solution: If you forgot your power-on password, you have to take your computer to an IBM reseller or marketing representative to have the password canceled.
If you forgot your hard disk password, IBM will not reset your password or recover data from the hard disk. You must take your computer to an IBM reseller or an IBM marketing representative to have the hard disk drive replaced. Proof of purchase is required, and an additional charge might be required for the service.
If you forgot your supervisor password, IBM will not reset your password. You must take your computer to an IBM reseller or IBM marketing
Chapter 2. Solving computer problems 15
Solving computer problems
representative to have the system board replaced. Proof of purchase is required, and an additional charge might be required for the service.
A power switch problem
Problem: The system does not respond, and you cannot turn off the computer.
Solution: Turn off the computer by pressing and holding the power switch for 4 seconds or more. If the system is still not reset, remove the ac adapter and the battery.
Keyboard problems
Problem: The cursor does not move after the computer returns from one of the power management modes.
Solution: Make sure you followed the instructions correctly when you installed Windows with the Advanced Power Management (APM) option.
Problem: Some or all keys on the keyboard do not work.
Solution: If the problem occurred immediately after the computer returned from standby mode, enter the power-on password if any is set.
If an external keyboard is connected, the numeric keypad on your computer does not work. Use the numeric keypad on the external keyboard.
If an external numeric keypad or a mouse is connected:
1.Turn off the computer.
2.Remove the external numeric keypad or the mouse.
3.Turn on the computer and try using the keyboard again.
If the keyboard problem is resolved, carefully reconnect the external numeric keypad, external keyboard, or mouse, making sure that you have seated the connectors properly.
If any keys on the keyboard still do not work, have the computer serviced.
Problem: A number appears when you type a letter.
Solution: The numeric lock function is on. To disable it, press and hold Shift; then press NumLk.
Problem: All or some keys on the external numeric keypad do not work.
Solution: Make sure that the external numeric keypad is correctly connected to the computer.
16 ThinkPad® T22 Service and Troubleshooting Guide
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