Hardware Maintenance Manual
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... 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... symptoms 46 Intermittent problems 46 Undetermined problems 47 FRU replacement notices 47 Screw notices 47 Retaining serial numbers 48 Removing and replacing a FRU 50 1010 Battery pack 51 1020 DIMM 52 1030 Mini PCI adapter 53 1040 Backup...
... 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... symptoms 46 Intermittent problems 46 Undetermined problems 47 FRU replacement notices 47 Screw notices 47 Retaining serial numbers 48 Removing and replacing a FRU 50 1010 Battery pack 51 1020 DIMM 52 1030 Mini PCI adapter 53 1040 Backup...
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...the AC plug on a double-insulated or battery-operated system. The CD-ROM drive or DVD drive is especially useful when handling ESD-sensitive devices. v Use the black side of the computer is required for Class 1 laser products. 16 ThinkPad A21e Grounding requirements Electrical grounding of a grounded work...operator safety and correct system function. Note The use coax or connector-outside shells on these systems. - Laser compliance statement Some IBM Personal Computer models are equipped from touching your clothing. The CD-ROM drive or DVD drive is certified to conform to provide ...
...the AC plug on a double-insulated or battery-operated system. The CD-ROM drive or DVD drive is especially useful when handling ESD-sensitive devices. v Use the black side of the computer is required for Class 1 laser products. 16 ThinkPad A21e Grounding requirements Electrical grounding of a grounded work...operator safety and correct system function. Note The use coax or connector-outside shells on these systems. - Laser compliance statement Some IBM Personal Computer models are equipped from touching your clothing. The CD-ROM drive or DVD drive is certified to conform to provide ...
Hardware Maintenance Manual
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...on the computer by pressing and holding F1. 2. The POP has been removed. 5. Select Password, using the cursor keys to remove the backup battery, see "1010 Battery pack" on password To remove a POP that you have been saved window. 8. When the Enter New Password field opens, leave it . Press ...Enter in the Setup confirmation window. The IBM BIOS Setup Utility menu appears. 3. then select Yes in the Changes have forgotten, do the following: ...
...on the computer by pressing and holding F1. 2. The POP has been removed. 5. Select Password, using the cursor keys to remove the backup battery, see "1010 Battery pack" on password To remove a POP that you have been saved window. 8. When the Enter New Password field opens, leave it . Press ...Enter in the Setup confirmation window. The IBM BIOS Setup Utility menu appears. 3. then select Yes in the Changes have forgotten, do the following: ...
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...; In hibernation mode, the following events causes the computer to reenter operation mode. so if you know that the battery power is low. (Alternatively, if Hibernate when battery becomes low has been selected in IBM BIOS Setup Utility. Then only the LCD turns off.) In certain circumstances, the computer goes into hibernation mode...
...; In hibernation mode, the following events causes the computer to reenter operation mode. so if you know that the battery power is low. (Alternatively, if Hibernate when battery becomes low has been selected in IBM BIOS Setup Utility. Then only the LCD turns off.) In certain circumstances, the computer goes into hibernation mode...
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... switch mode [Hibernation]. When the power is turned on the hard disk. v The power switch is restored from the hard-disk drive. 26 ThinkPad A21e v The timer conditions are satisfied in the boot record on the hard-disk drive is read, and system status is turned off . The hibernation... file in suspend mode (for operating systems other than Windows 98). v A critically low battery condition occurs. v The system is powered off and the mode is set to enter hibernation mode when the hibernation file is used. Notes: The ...
... switch mode [Hibernation]. When the power is turned on the hard disk. v The power switch is restored from the hard-disk drive. 26 ThinkPad A21e v The timer conditions are satisfied in the boot record on the hard-disk drive is read, and system status is turned off . The hibernation... file in suspend mode (for operating systems other than Windows 98). v A critically low battery condition occurs. v The system is powered off and the mode is set to enter hibernation mode when the hibernation file is used. Notes: The ...
Hardware Maintenance Manual
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...appropriate one of the following : 1. Connect the ac adapter. 4. Power off the computer. 2. Disconnect the ac adapter and install the charged battery pack. 7. Check that power is supplied when you power on page 31 General descriptions 29 To cancel the test, press Esc. Detecting system ... Info v SMBIOS Info v VESA LCD Info Utility v Run External Tests v Surface Scan Hard Disk v Benchmark System v DOS Shell v Tech Support Form v Battery Rundown v View Test Log v Print Log v Save Log v Full Erase Hard Drive v Quick Erase Hard Drive Power system checkout To verify a symptom, do...
...appropriate one of the following : 1. Connect the ac adapter. 4. Power off the computer. 2. Disconnect the ac adapter and install the charged battery pack. 7. Check that power is supplied when you power on page 31 General descriptions 29 To cancel the test, press Esc. Detecting system ... Info v SMBIOS Info v VESA LCD Info Utility v Run External Tests v Surface Scan Hard Disk v Benchmark System v DOS Shell v Tech Support Form v Battery Rundown v View Test Log v Print Log v Save Log v Full Erase Hard Drive v Quick Erase Hard Drive Power system checkout To verify a symptom, do...
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.... v If the power-on indicator does not turn on page 35. 5. If it return to the next section. 30 ThinkPad A21e Checkout guide v "Checking the backup battery" on , check the power cord of the ac adapter for correct continuity and installation. Unplug the ac adapter cable from the ac adapter does not ...
.... v If the power-on indicator does not turn on page 35. 5. If it return to the next section. 30 ThinkPad A21e Checkout guide v "Checking the backup battery" on , check the power cord of the ac adapter for correct continuity and installation. Unplug the ac adapter cable from the ac adapter does not ...
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...After it cools down, reinstall and recharge it at room temperature for a while. Remove the battery pack and measure the voltage between battery terminals 4 and 5. See the following : 1. for Lithium ion battery; Note: Recharging will take at least 3 hours, even if the indicator does not turn ...the voltage is still less than +8.0 V dc after recharging, replace the battery. for a moment (but do the following figure: Terminal Voltage (V dc) 1 + 0 to 30 K ohm. Checkout guide Checking the battery pack Battery charging does not start until the Power Meter shows that less than 95%...
...After it cools down, reinstall and recharge it at room temperature for a while. Remove the battery pack and measure the voltage between battery terminals 4 and 5. See the following : 1. for Lithium ion battery; Note: Recharging will take at least 3 hours, even if the indicator does not turn ...the voltage is still less than +8.0 V dc after recharging, replace the battery. for a moment (but do the following figure: Terminal Voltage (V dc) 1 + 0 to 30 K ohm. Checkout guide Checking the battery pack Battery charging does not start until the Power Meter shows that less than 95%...
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... metal hydride battery; Power off the computer, and unplug the ac adapter from it. 2. Wire Red Black Voltage (V dc) +2.5 to 30 K ohm. Remove the battery pack (see "Checking the battery pack" on page 51). 4. v If the backup battery discharges quickly after replacement, replace the system board. 32 ThinkPad A21e Remove the backup battery (see "1010 Battery pack" on...
... metal hydride battery; Power off the computer, and unplug the ac adapter from it. 2. Wire Red Black Voltage (V dc) +2.5 to 30 K ohm. Remove the battery pack (see "Checking the battery pack" on page 51). 4. v If the backup battery discharges quickly after replacement, replace the system board. 32 ThinkPad A21e Remove the backup battery (see "1010 Battery pack" on...
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... 87 Front view 87 Rear view 88 Bottom view 89 Parts list 90 LCD FRU 93 33 panels 82 2040 LCD panel 83 12.1-in . 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... Restoring the serial number of the system unit 49 Retaining the UUID 49 Removing and replacing a FRU 50 1010 Battery pack 51 1020 DIMM 52 1030 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...
... 87 Front view 87 Rear view 88 Bottom view 89 Parts list 90 LCD FRU 93 33 panels 82 2040 LCD panel 83 12.1-in . 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... Restoring the serial number of the system unit 49 Retaining the UUID 49 Removing and replacing a FRU 50 1010 Battery pack 51 1020 DIMM 52 1030 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...
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... in Windows 98, Windows 2000 and Windows Me. (continued) 36 ThinkPad A21e Blinking green: The computer is entering standby mode or hibernation mode, or is low. Blinking orange: The battery needs to operate, but is fully charged. when the indicator starts blinking orange, the computer ...beeps three times. 2 Standby status Green: The computer is to being charged. Orange: The battery power is resuming normal operation. Blinking green: The battery has enough power to be charged. Status indicators Product overview The system status indicators show the status of...
... in Windows 98, Windows 2000 and Windows Me. (continued) 36 ThinkPad A21e Blinking green: The computer is entering standby mode or hibernation mode, or is low. Blinking orange: The battery needs to operate, but is fully charged. when the indicator starts blinking orange, the computer ...beeps three times. 2 Standby status Green: The computer is to being charged. Orange: The battery power is resuming normal operation. Blinking green: The battery has enough power to be charged. Status indicators Product overview The system status indicators show the status of...
Hardware Maintenance Manual
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...not correct the problem, continue with the following: v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 38 ThinkPad A21e Diagnostics --> Video Adapter 2. After you use the TrackPoint, the pointer may drift on the screen for the bottom slot...unit Modem Audio Speaker PC Card slots Keyboard TrackPoint or pointing device Applicable test 1. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Interactive Tests --> Video 1. Lucent Modem (M2) Dialtone/DTM c. Intel Modem Register d. Intel Modem Loopback/DTMF e. ...
...not correct the problem, continue with the following: v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 38 ThinkPad A21e Diagnostics --> Video Adapter 2. After you use the TrackPoint, the pointer may drift on the screen for the bottom slot...unit Modem Audio Speaker PC Card slots Keyboard TrackPoint or pointing device Applicable test 1. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Interactive Tests --> Video 1. Lucent Modem (M2) Dialtone/DTM c. Intel Modem Register d. Intel Modem Loopback/DTMF e. ...
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.... 1. System board. 0271 Date and time error - DIMM. 2. System board. 0270 Real-time clock error. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0251 System CMOS checksum bad-Default configuration used. Reseat the hard-disk drive. 2. ...DIMM. 2. Load Setup Defaults in IBM BIOS Setup Utility. 3. System battery is set in CMOS. System board. 0232 Extended RAM error - Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. (continued) 42 ThinkPad A21e
.... 1. System board. 0271 Date and time error - DIMM. 2. System board. 0270 Real-time clock error. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0251 System CMOS checksum bad-Default configuration used. Reseat the hard-disk drive. 2. ...DIMM. 2. Load Setup Defaults in IBM BIOS Setup Utility. 3. System battery is set in CMOS. System board. 0232 Extended RAM error - Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. (continued) 42 ThinkPad A21e
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... is not supported. I/O card. 1. Replace the backup battery. 3. System board. 1. DIMM. 3. DIMM. 2. System board. 1. System board. Symptom-to-FRU index Symptom or error 0280 Previous boot incomplete - Diskette drive. 2. Shut down the computer and remove it from the docking station ThinkPad A21e 43 Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. DIMM...
... is not supported. I/O card. 1. Replace the backup battery. 3. System board. 1. DIMM. 3. DIMM. 2. System board. 1. System board. Symptom-to-FRU index Symptom or error 0280 Previous boot incomplete - Diskette drive. 2. Shut down the computer and remove it from the docking station ThinkPad A21e 43 Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. DIMM...
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... the extra memory. 44 ThinkPad A21e Failing bits: nnnn. System board. 1. DIMM. 2. System board. 1. Check that the operating system has no failure and is 256 MB. Load Setup Defaults in IBM BIOS Setup Utility. 2. Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. Fan error. Backup battery. 3. Backup battery. 3. Enter IBM BIOS Setup Utility and see...
... the extra memory. 44 ThinkPad A21e Failing bits: nnnn. System board. 1. DIMM. 2. System board. 1. Check that the operating system has no failure and is 256 MB. Load Setup Defaults in IBM BIOS Setup Utility. 2. Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. Fan error. Backup battery. 3. Backup battery. 3. Enter IBM BIOS Setup Utility and see...
Hardware Maintenance Manual
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...easily come loose, even with special nylon-coated screws that have the following devices: a. ThinkPad A21e 47 Rerun the test to verify that the power supply being used at the time ... to the port replicator c. Screw notices Loose screws can cause a reliability problem. The an IBM ThinkPad computer address this section carefully before replacing any damaged FRU. 3. Printer, mouse, and other ..." on the computer. 5. If any error is inoperative. Follow these procedures to -FRU index 3. Battery pack e. v They do not replace a nondefective FRU): a. If the problem does not recur, ...
...easily come loose, even with special nylon-coated screws that have the following devices: a. ThinkPad A21e 47 Rerun the test to verify that the power supply being used at the time ... to the port replicator c. Screw notices Loose screws can cause a reliability problem. The an IBM ThinkPad computer address this section carefully before replacing any damaged FRU. 3. Printer, mouse, and other ..." on the computer. 5. If any error is inoperative. Follow these procedures to -FRU index 3. Battery pack e. v They do not replace a nondefective FRU): a. If the problem does not recur, ...
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... arrow in place and are not loose inside the computer. Attention: Before the computer is sensitive to establish personal grounding. 50 ThinkPad A21e Establish personal grounding by shaking the computer gently and listening for rattling sounds. For information about connecting and arranging internal cables, see... 2. Verify this by touching a ground point with one hand before the failing FRU. An untrained person runs the risk of the battery pack as shown in square callouts. 5. Metallic parts or metal flakes can be removed before touching these units. Any such FRUs are...
... arrow in place and are not loose inside the computer. Attention: Before the computer is sensitive to establish personal grounding. 50 ThinkPad A21e Establish personal grounding by shaking the computer gently and listening for rattling sounds. For information about connecting and arranging internal cables, see... 2. Verify this by touching a ground point with one hand before the failing FRU. An untrained person runs the risk of the battery pack as shown in square callouts. 5. Metallic parts or metal flakes can be removed before touching these units. Any such FRUs are...
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... ordinances or regulations. When disposing of the battery, comply with a battery of the type recommended by IBM, or an equivalent, (2) keep the battery pack away from fire, (3) do not expose it to water or rain, (4) do not attempt to disassemble it, (5) do not short-circuit it. ThinkPad A21e 51 1010 Battery pack Removing and replacing a FRU CAUTION...
... ordinances or regulations. When disposing of the battery, comply with a battery of the type recommended by IBM, or an equivalent, (2) keep the battery pack away from fire, (3) do not expose it to water or rain, (4) do not attempt to disassemble it, (5) do not short-circuit it. ThinkPad A21e 51 1010 Battery pack Removing and replacing a FRU CAUTION...
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Pivot the DIMM until it firmly. When installing: With the notched end of the DIMM toward the socket, insert the DIMM into the socket, then press it snaps into place. Make sure that the card is firmly fixed in the slot and does not move easily. 52 ThinkPad A21e 1020 DIMM Removing and replacing a FRU v Battery pack (1010) Note: Loosen the screw 1 , but do not remove it.
Pivot the DIMM until it firmly. When installing: With the notched end of the DIMM toward the socket, insert the DIMM into the socket, then press it snaps into place. Make sure that the card is firmly fixed in the slot and does not move easily. 52 ThinkPad A21e 1020 DIMM Removing and replacing a FRU v Battery pack (1010) Note: Loosen the screw 1 , but do not remove it.
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Removing and replacing a FRU 1030 Mini PCI adapter v Battery pack (1010) Note: Loosen the screw 1 , but do not remove it. 1 2 (continued) ThinkPad A21e 53
Removing and replacing a FRU 1030 Mini PCI adapter v Battery pack (1010) Note: Loosen the screw 1 , but do not remove it. 1 2 (continued) ThinkPad A21e 53