Hardware Maintenance Manual
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... first 19 Related service information 21 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 messages 44...
... first 19 Related service information 21 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 messages 44...
Hardware Maintenance Manual
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... Before replacing parts Make sure that all diskette fixes are customer-installable. Use the following strategy to prevent unnecessary FRU replacement and service expense: v If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that changed the symptoms. 1 Introduction Important service information Important Diskette fixes are installed before you continue. v If an adapter or device...
... Before replacing parts Make sure that all diskette fixes are customer-installable. Use the following strategy to prevent unnecessary FRU replacement and service expense: v If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that changed the symptoms. 1 Introduction Important service information Important Diskette fixes are installed before you continue. v If an adapter or device...
Hardware Maintenance Manual
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... 2 ThinkPad A21e If more than one error code is listed in the Symptom-to-FRU Index for replacing a hard-disk drive Always try to diagnose failures. If you are servicing. Whatever causes the first error code may alter the settings. Diskette compatibility matrix The compatibility of each of the drives with the first error code. Important service information Attention The setup configuration on the screen to run a low-level format before replacing a hard-disk drive...
... 2 ThinkPad A21e If more than one error code is listed in the Symptom-to-FRU Index for replacing a hard-disk drive Always try to diagnose failures. If you are servicing. Whatever causes the first error code may alter the settings. Diskette compatibility matrix The compatibility of each of the drives with the first error code. Important service information Attention The setup configuration on the screen to run a low-level format before replacing a hard-disk drive...
Hardware Maintenance Manual
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... operate the switch or unplug the power cord quickly. v Do not work on a machine that another person, familiar with the power-off position. Many customers have handles covered with a soft material that tester. - By observing the above rule, you can occur only when there is near equipment that has hazardous voltages. When using testers, set the controls correctly and use this type...
... operate the switch or unplug the power cord quickly. v Do not work on a machine that another person, familiar with the power-off position. Many customers have handles covered with a soft material that tester. - By observing the above rule, you can occur only when there is near equipment that has hazardous voltages. When using testers, set the controls correctly and use this type...
Hardware Maintenance Manual
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... FRU part number are servicing sequence might have nothing to the FRU parts list. If you select an incorrect drive, data or programs might not apply to replace a nondefective FRU. If you suspect that have been altered. If the error does not recur, do with a hardware defect, such as copying, saving, or formatting. v Be extremely careful during such write operations as...
... FRU part number are servicing sequence might have nothing to the FRU parts list. If you select an incorrect drive, data or programs might not apply to replace a nondefective FRU. If you suspect that have been altered. If the error does not recur, do with a hardware defect, such as copying, saving, or formatting. v Be extremely careful during such write operations as...
Hardware Maintenance Manual
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... v Damaged or bent diskette eject button v Fuses blown by attachment of a nonsupported device v Forgotten computer password (making the computer unusable) v Sticky keys caused by the customer. Customer's name and address Note for warranty: During the warranty period, the customer may have been subjected to stress beyond normal use. Machine type, model number, and serial number __ 9. Failing FRU name and part number __ 8.
... v Damaged or bent diskette eject button v Fuses blown by attachment of a nonsupported device v Forgotten computer password (making the computer unusable) v Sticky keys caused by the customer. Customer's name and address Note for warranty: During the warranty period, the customer may have been subjected to stress beyond normal use. Machine type, model number, and serial number __ 9. Failing FRU name and part number __ 8.
Hardware Maintenance Manual
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... install, highlight proper operating system and press "ENTER". 9. Follow prompts to select. 10. You can still get access to the hard disk if you select Master + User. Related service information 8. Supervisor password: A supervisor password (SVP) protects the system information stored in the IBM BIOS Setup Utility so that 22 ThinkPad A21e Press "ENTER" to complete Recovery. A menu will not be needed for the system administrator, who can start until the password is booted...
... install, highlight proper operating system and press "ENTER". 9. Follow prompts to select. 10. You can still get access to the hard disk if you select Master + User. Related service information 8. Supervisor password: A supervisor password (SVP) protects the system information stored in the IBM BIOS Setup Utility so that 22 ThinkPad A21e Press "ENTER" to complete Recovery. A menu will not be needed for the system administrator, who can start until the password is booted...
Hardware Maintenance Manual
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... down the menu. 4. Remove the battery pack. The IBM BIOS Setup Utility menu appears. 3. Related service information without knowing the password, nobody can change the configuration of the computer. After the POST ends, the password prompt does not appear. Turn on the computer and wait until the POST ends. Select Password, using the cursor keys to remove the power-on page 55. 4. How to remove the hard-disk password Attention If User only mode is...
... down the menu. 4. Remove the battery pack. The IBM BIOS Setup Utility menu appears. 3. Related service information without knowing the password, nobody can change the configuration of the computer. After the POST ends, the password prompt does not appear. Turn on the computer and wait until the POST ends. Select Password, using the cursor keys to remove the power-on page 55. 4. How to remove the hard-disk password Attention If User only mode is...
Hardware Maintenance Manual
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... LCD cover. (To prevent the computer from entering standby mode when the LCD is the letter of the hard-disk drive. Power on the computer by pressing and holding F1. 2. then leave the New Password field blank and press Enter twice. 7. v The speaker is powered off. To enter standby mode, do any key. Enter the SVP. If you have been removed. v The CPU stops. The IBM BIOS Setup Utility menu appears. 3. Press F10. 8. Screen blank mode...
... LCD cover. (To prevent the computer from entering standby mode when the LCD is the letter of the hard-disk drive. Power on the computer by pressing and holding F1. 2. then leave the New Password field blank and press Enter twice. 7. v The speaker is powered off. To enter standby mode, do any key. Enter the SVP. If you have been removed. v The CPU stops. The IBM BIOS Setup Utility menu appears. 3. Press F10. 8. Screen blank mode...
Hardware Maintenance Manual
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... following events causes the computer to reinstall Windows NT with the keyboard, the TrackPoint, the hard disk, the parallel connector, or the diskette drive within the time set the low-battery alarm, the charge indicator lets you have set . v The LCD cover is appropriate. v The ring indicator (RI) is signaled by a serial device or a PC Card device. Related service information Will not suspend even if LCD is closed in IBM BIOS Setup Utility.
... following events causes the computer to reinstall Windows NT with the keyboard, the TrackPoint, the hard disk, the parallel connector, or the diskette drive within the time set the low-battery alarm, the charge indicator lets you have set . v The LCD cover is appropriate. v The ring indicator (RI) is signaled by a serial device or a PC Card device. Related service information Will not suspend even if LCD is closed in IBM BIOS Setup Utility.
Hardware Maintenance Manual
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... correcting problems with the TrackPoint. Checkout guide Checkout guide Use the following procedure, you can select an item not only with the arrow keys, but also with the ThinkPad computer. For some devices are intended to enable it by use of the computer. Identify the failing symptoms in PC-Doctor. You can lead to false indications of the IBM BIOS Setup Utility before you need...
... correcting problems with the TrackPoint. Checkout guide Checkout guide Use the following procedure, you can select an item not only with the arrow keys, but also with the ThinkPad computer. For some devices are intended to enable it by use of the computer. Identify the failing symptoms in PC-Doctor. You can lead to false indications of the IBM BIOS Setup Utility before you need...
Hardware Maintenance Manual
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..., the Fn key is a problem, PC-Doctor shows messages describing it cannot be held down menu appears. (Its exact form depends on the model.) The options on the test menu are as follows: Diagnostics v Run Normal Test v Run Quick Test v CPU/Coprocessor v Systemboard v Video Adapter v Serial Ports v Parallel Ports v Fixed Disks v Diskette Drives v Other Devices v Communication v Memory Test - Run the applicable function test. 5. Follow the instructions on the screen. A pull-down...
..., the Fn key is a problem, PC-Doctor shows messages describing it cannot be held down menu appears. (Its exact form depends on the model.) The options on the test menu are as follows: Diagnostics v Run Normal Test v Run Quick Test v CPU/Coprocessor v Systemboard v Video Adapter v Serial Ports v Parallel Ports v Fixed Disks v Diskette Drives v Other Devices v Communication v Memory Test - Run the applicable function test. 5. Follow the instructions on the screen. A pull-down...
Hardware Maintenance Manual
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... Mini PCI adapter 53 1040 Backup battery 55 1050 Hard-disk drive 56 1060 Ultrabay 2000 device 58 1070 Keyboard 60 1080 Keyboard CRU insulator 63 1090 Hinge cover 64 1100 Keyboard bezel and speaker 65 1110 Speaker cable 67 1120 Sub card 68 1130 PC Card slot assembly 70 1140 Fan assembly 71 1150 Diskette drive 73 1160 Upper shield 74 1170 System board 75 2010 LCD assembly...
... Mini PCI adapter 53 1040 Backup battery 55 1050 Hard-disk drive 56 1060 Ultrabay 2000 device 58 1070 Keyboard 60 1080 Keyboard CRU insulator 63 1090 Hinge cover 64 1100 Keyboard bezel and speaker 65 1110 Speaker cable 67 1120 Sub card 68 1130 PC Card slot assembly 70 1140 Fan assembly 71 1150 Diskette drive 73 1160 Upper shield 74 1170 System board 75 2010 LCD assembly...
Hardware Maintenance Manual
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... section presents the following product-unique information: v "Specifications" v "Status indicators" on page 36 v "FRU Tests" on page 38 v "Fn key combinations" on page 40 Specifications The following table lists the specifications of the ThinkPad A21e series: Feature Processor Bus architecture Memory (standard) Memory (optional) CMOS RAM Display Diskette drive Hard-disk drive I/O port Internal modem Audio PC Card AC adapter Bay device Description Intel® Celeron® processor 600 MHz, L2 128-KB cache PCI Bus 64 MB...
... section presents the following product-unique information: v "Specifications" v "Status indicators" on page 36 v "FRU Tests" on page 38 v "Fn key combinations" on page 40 Specifications The following table lists the specifications of the ThinkPad A21e series: Feature Processor Bus architecture Memory (standard) Memory (optional) CMOS RAM Display Diskette drive Hard-disk drive I/O port Internal modem Audio PC Card AC adapter Bay device Description Intel® Celeron® processor 600 MHz, L2 128-KB cache PCI Bus 64 MB...
Hardware Maintenance Manual
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... Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Interactive Tests --> Keyboard If the TrackPoint does not work, check the configuration in Diagnostics --> Communication: a. After you use the TrackPoint, the pointer may drift on the screen for each FRU. FRU Tests Product overview The following : v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 38 ThinkPad A21e FRU System board Power LCD unit Modem Audio Speaker PC Card slots Keyboard TrackPoint or pointing device Applicable test 1. Interactive Tests --> Video 1. Replace...
... Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Interactive Tests --> Keyboard If the TrackPoint does not work, check the configuration in Diagnostics --> Communication: a. After you use the TrackPoint, the pointer may drift on the screen for each FRU. FRU Tests Product overview The following : v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 38 ThinkPad A21e FRU System board Power LCD unit Modem Audio Speaker PC Card slots Keyboard TrackPoint or pointing device Applicable test 1. Interactive Tests --> Video 1. Replace...
Hardware Maintenance Manual
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...Extended RAM error - Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0251 System CMOS checksum bad-Default configuration used. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. Reseat the hard-disk drive. 2. DIMM. 2. Reset the password by running IBM BIOS Setup Utility. 0260 System timer error. 1. Charge the battery pack. 2. The hard disk is dead. System board. 021x Stuck key - Run interactive tests of the keyboard and the auxiliary input device. 0220 Monitor type error - Monitor type does...
...Extended RAM error - Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0251 System CMOS checksum bad-Default configuration used. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. Reseat the hard-disk drive. 2. DIMM. 2. Reset the password by running IBM BIOS Setup Utility. 0260 System timer error. 1. Charge the battery pack. 2. The hard disk is dead. System board. 021x Stuck key - Run interactive tests of the keyboard and the auxiliary input device. 0220 Monitor type error - Monitor type does...
Hardware Maintenance Manual
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... board. 1. Start the ThinkPad Configuration program and set . System board Reinstall operating system. Type the password and press Enter. External CRT. 4. Two short beeps with blank screen. DIMM. 2. DIMM. 3. Speaker. Type the password and press Enter. No beep symptoms Symptom or error No beep, power-on indicator on , and LCD blank during POST, but system runs correctly. Reseat the LCD connector. 2. No beep during POST. A hard-disk password is connected tightly and correctly. 2. System board...
... board. 1. Start the ThinkPad Configuration program and set . System board Reinstall operating system. Type the password and press Enter. External CRT. 4. Two short beeps with blank screen. DIMM. 2. DIMM. 3. Speaker. Type the password and press Enter. No beep symptoms Symptom or error No beep, power-on indicator on , and LCD blank during POST, but system runs correctly. Reseat the LCD connector. 2. No beep during POST. A hard-disk password is connected tightly and correctly. 2. System board...
Hardware Maintenance Manual
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..., discolored, or always lighted is always off (black color.) Symptom or error No beep, power-on indicator on LCD. v LCD too dark. System board. 1. System board. v LCD brightness cannot be considered only when a problem recurs. v LCD screen unreadable. v Characters missing pixels. FRU or action, in loop mode at least 10 times. 2. Reseat the LCD connectors. 2. LCD assembly. FRU replacement should be adjusted. Reseat all LCD connectors. 3. Intermittent problems Intermittent system hang...
..., discolored, or always lighted is always off (black color.) Symptom or error No beep, power-on indicator on LCD. v LCD too dark. System board. 1. System board. v LCD brightness cannot be considered only when a problem recurs. v LCD screen unreadable. v Characters missing pixels. FRU or action, in loop mode at least 10 times. 2. Reseat the LCD connectors. 2. LCD assembly. FRU replacement should be adjusted. Reseat all LCD connectors. 3. Intermittent problems Intermittent system hang...
Hardware Maintenance Manual
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... on the bottom of your system board. Install the ThinkPad hardware maintenance diskette version 1.61, and restart the computer. 2. From the main menu, select 4. ThinkPad A21e 49 FRU replacement notices Restoring the serial number of the system unit When the computer was manufactured, the EEPROM on the system board was loaded with the serial numbers of the computer. These numbers need to its original value. Select 1. No...
... on the bottom of your system board. Install the ThinkPad hardware maintenance diskette version 1.61, and restart the computer. 2. From the main menu, select 4. ThinkPad A21e 49 FRU replacement notices Restoring the serial number of the system unit When the computer was manufactured, the EEPROM on the system board was loaded with the serial numbers of the computer. These numbers need to its original value. Select 1. No...
Hardware Maintenance Manual
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1070 Keyboard Removing and replacing a FRU v Battery pack (1010) v Hard-disk drive (1050) v Ultrabay 2000 device (1060) 1 Step 1 Screw (quantity) M2.5 × 15 mm, nylon-coated (3) (continued) Torque 39.2 Ncm (4 kgfcm) 60 ThinkPad A21e
1070 Keyboard Removing and replacing a FRU v Battery pack (1010) v Hard-disk drive (1050) v Ultrabay 2000 device (1060) 1 Step 1 Screw (quantity) M2.5 × 15 mm, nylon-coated (3) (continued) Torque 39.2 Ncm (4 kgfcm) 60 ThinkPad A21e