IBM A21e - ThinkPad 2628 - Celeron 600 MHz Support and Manuals
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Popular IBM A21e Manual Pages
Hardware Maintenance Manual - Page 3
...
Service Web site 21 Using Recovery CD 21 Passwords 22 Power management 24 Checkout guide 27 Testing the computer 27 Detecting system information with PC-Doctor. . . 29 Power system checkout 29
ThinkPad A21e 33 Product overview 35
Specifications 35 Status indicators 36 FRU Tests 38 Fn key combinations 40 Symptom-to-FRU index 41 Numeric error codes 41 Error...
Hardware Maintenance Manual - Page 5
... only the FRU that all diskette fixes are installed before you are instructed to replace a FRU but the
replacement does not correct the problem, reinstall the original FRU before replacing any FRUs listed in this manual. Introduction
Important service information
Important Diskette fixes are posted on the IBM support site (http://www.pc.ibm.com/support/). The diskette fixes are customer...
Hardware Maintenance Manual - Page 6
... configuration settings (using the View Configuration option); If no error code is displayed, see if the error symptom is as copying, saving, or formatting.
If you are servicing. Be extremely careful during write operations such as follows:
Diskette drive
3.5-inch
Diskette capacity
1.0 MB 2.0 MB 4.0 MB
Compatibility
Read and write Read and write Not compatible
2 ThinkPad A21e How...
Hardware Maintenance Manual - Page 18
...Mechanical hazards, such as loose or missing hardware
14 ThinkPad A21e such touching can continue without first correcting the problem. Pumps - Send another person to assist you ...service the following parts with the reflective surface of non-IBM features or options not covered by this inspection guide is conductive;
Power supply units - do not become a victim yourself. - This guide...
Hardware Maintenance Manual - Page 23
... for the correct model. Some descriptions might be replaced because of reasons that you attach to the FRU parts list.
Read this section. v Use new nylon-coated screws when you are correct by referring to it: __ 1. Drives in the parts exchange form or parts return form that have been altered.
Failure symptoms, error codes appearing on which...
Hardware Maintenance Manual - Page 26
... person. You can enter two HDPs when you can start until the password is booted. If both user HDP and master HDP have been forgotten, the password cannot be removed and the hard disk will appear stating "Full Recovery:". Supervisor password:
A supervisor password (SVP) protects the system information stored in the IBM BIOS Setup Utility so that
22 ThinkPad A21e
Hardware Maintenance Manual - Page 27
... POP has been removed. 5. Turn off the computer. 2. For how to reset it blank and press Enter twice. 7. Select Password, using the cursor keys to remove the power-on password
To remove a POP that you have been saved window. 8.
When the Enter New Password field opens, leave it . How to move down the menu. 4. The IBM BIOS Setup Utility menu...
Hardware Maintenance Manual - Page 28
... Setup Configuration window.
Note for standby mode and hibernation mode Do not install or remove ...removed.
Enter the master HDP; then leave the New Password
field blank and press Enter twice. 7. v The speaker is the letter of ThinkPad A21e supports...IBM BIOS Setup Utility menu
appears. 3. Select Yes in Windows 95 and Windows NT), and hibernation.
Related service information To remove...
Hardware Maintenance Manual - Page 37
... 90 LCD FRU 93
33 ThinkPad A21e
Product overview 35 Specifications 35 Status indicators 36 FRU Tests 38 Fn key combinations 40
Symptom-to-FRU index 41 Numeric error codes 41 Error messages 44 Beep symptoms 45 No beep symptoms 45 LCD-related symptoms 46 Intermittent problems 46 Undetermined problems 47
FRU replacement notices 47 Screw notices 47 Retaining...
Hardware Maintenance Manual - Page 42
...Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2)
1. Interactive Tests --> Stereo Speaker
Note: The upper slot does not function and this test is applied to enable it. Interactive Tests --> Keyboard
If the TrackPoint does not work, check the configuration in turn, and run the following : v Interactive Tests --> Mouse
Diagnostics --> Fixed Disks
(continued) 38 ThinkPad A21e This drift...
Hardware Maintenance Manual - Page 43
... Diagnostics --> Other Devices --> IBM Fan. Quick.
2. If the test does not detect the error, run Diagnostics --> Memory Test -
Diagnostics --> Diskette Drives 2. Interactive Tests --> CD-ROM/DVD Test
1. Full.
1. ThinkPad A21e 39 If two DIMMs are installed, remove one , and run the test again.
3. Diagnostics --> Other Devices --> CD-ROM/DVD
2. If the problem does not recur, return...
Hardware Maintenance Manual - Page 45
... or system operation.
This index can be replaced next. Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for each error detected in this section lists symptoms and errors and their possible causes. If replacing a FRU does not solve the problem, put the original part back in sequence System board. If no...
Hardware Maintenance Manual - Page 46
... and time error - Battery pack.
0200 Hard disk error - The password is not working.
1. System battery is set in IBM BIOS Setup Utility.
0230 Shadow RAM error -
Extended RAM failure at offset nnnn.
1. DIMM. 2.
Reseat the hard-disk drive.
2. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date.
(continued) 42 ThinkPad A21e Symptom-to...
Hardware Maintenance Manual - Page 48
...the computer and remove the extra memory.
44 ThinkPad A21e Allocation error for device. Invalid system configuration data.
Symptom-to what it was before the computer entered hibernation mode.
2. Backup battery. 3. System board.
1. Load Setup Defaults in sequence
1. Diskette drive. 6. Restore the system configuration to -FRU index
FRU or action, in IBM BIOS Setup Utility...
Hardware Maintenance Manual - Page 52
... for reference the P/N, see
"Miscellaneous parts" on page 49
48 ThinkPad A21e v Make sure you removed. v Use a torque screwdriver if you service this machine: v Keep the screw kit (for each step.
FRU replacement notices v They are tightened firmly. Retaining serial numbers
This section includes the following when you have a torque driver, refer to tighten. Do the following...
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