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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... - Most clothing is especially useful when handling ESD-sensitive devices. Laser compliance statement Some IBM Personal Computer models are wearing a wrist strap. The mat is insulative and retains a...requirement. Note The use coax or connector-outside shells on a double-insulated or battery-operated system. Proper grounding of the electrical outlet can use of the International ...The CD-ROM drive or DVD drive is required for Class 1 laser products. 16 ThinkPad A21e Grounding requirements Electrical grounding of the AC plug on AC-operated computers. Safety information v ...
... - Most clothing is especially useful when handling ESD-sensitive devices. Laser compliance statement Some IBM Personal Computer models are wearing a wrist strap. The mat is insulative and retains a...requirement. Note The use coax or connector-outside shells on a double-insulated or battery-operated system. Proper grounding of the electrical outlet can use of the International ...The CD-ROM drive or DVD drive is required for Class 1 laser products. 16 ThinkPad A21e Grounding requirements Electrical grounding of the AC plug on AC-operated computers. Safety information v ...
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...computer cannot enter hibernation mode when it is powered with ac power and a communication PC Card is restored from the hard-disk drive. 26 ThinkPad A21e v The power switch is turned off . Any one of the following events causes the computer to enter hibernation mode when the hibernation file ...is set to Power switch mode [Hibernation]. v A critically low battery condition occurs. v The system is turned on the hard-disk drive is read, and system status is used. When the power is powered off...
...computer cannot enter hibernation mode when it is powered with ac power and a communication PC Card is restored from the hard-disk drive. 26 ThinkPad A21e v The power switch is turned off . Any one of the following events causes the computer to enter hibernation mode when the hibernation file ...is set to Power switch mode [Hibernation]. v A critically low battery condition occurs. v The system is turned on the hard-disk drive is read, and system status is used. When the power is powered off...
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...output voltage at the plug of the ac adapter for correct continuity and installation. If it return to the next section. 30 ThinkPad A21e Checkout guide v "Checking the backup battery" on , replace the system board. If the voltage is used, replace the port replicator. v If the problem persists, go...If the power problem occurs only when the port replicator is not correct, replace the ac adapter. 4. Note: Noise from the computer. 2. Reinstall the battery pack. v If the power-on indicator does not turn on , check the power cord of the ac adapter cable. See the following : 1. If...
...output voltage at the plug of the ac adapter for correct continuity and installation. If it return to the next section. 30 ThinkPad A21e Checkout guide v "Checking the backup battery" on , replace the system board. If the voltage is used, replace the port replicator. v If the problem persists, go...If the power problem occurs only when the port replicator is not correct, replace the ac adapter. 4. Note: Noise from the computer. 2. Reinstall the battery pack. v If the power-on indicator does not turn on , check the power cord of the ac adapter cable. See the following : 1. If...
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... is correct, replace the system board. Remove the backup battery (see "1010 Battery pack" on page 31). 5. v If the voltage is more than +8.0 V dc, measure the resistance between battery terminals 4 and 5. If the resistance is correct, replace...battery pack. Power off the computer, and unplug the ac adapter from it. 2. Checking the backup battery Do the following figure. Checkout guide for Nickel metal hydride battery; Measure the voltage of the backup battery. v If the backup battery discharges quickly after replacement, replace the system board. 32 ThinkPad A21e...
... is correct, replace the system board. Remove the backup battery (see "1010 Battery pack" on page 31). 5. v If the voltage is more than +8.0 V dc, measure the resistance between battery terminals 4 and 5. If the resistance is correct, replace...battery pack. Power off the computer, and unplug the ac adapter from it. 2. Checking the backup battery Do the following figure. Checkout guide for Nickel metal hydride battery; Measure the voltage of the backup battery. v If the backup battery discharges quickly after replacement, replace the system board. 32 ThinkPad A21e...
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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...
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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... show the status of the computer, as follows: Indicator 1 Battery Meaning Green: The battery is resuming normal operation. Blinking orange: The battery needs to operate, but is to being charged. Blinking green: The battery has enough power to be charged. when the indicator starts blinking... orange, the computer beeps three times. 2 Standby status Green: The computer is low. Orange: The battery power is in Windows 98, Windows 2000 and Windows Me. (continued) 36 ThinkPad A21e This indicator...
... show the status of the computer, as follows: Indicator 1 Battery Meaning Green: The battery is resuming normal operation. Blinking orange: The battery needs to operate, but is to being charged. Blinking green: The battery has enough power to be charged. when the indicator starts blinking... orange, the computer beeps three times. 2 Standby status Green: The computer is low. Orange: The battery power is in Windows 98, Windows 2000 and Windows Me. (continued) 36 ThinkPad A21e This indicator...
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... Modem Loopback/DTMF e. Interactive Tests --> Internal Speaker 2. This symptom is necessary. Interactive Tests --> Stereo Speaker 3. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Lucent Modem (M2) Loopback b. After you use the TrackPoint, the pointer may drift on the screen for the bottom slot.Diagnostics --> Systemboard --> ...configuration in Diagnostics --> Communication: a. FRU Tests Product overview The following : v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 38 ThinkPad A21e
... Modem Loopback/DTMF e. Interactive Tests --> Internal Speaker 2. This symptom is necessary. Interactive Tests --> Stereo Speaker 3. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Lucent Modem (M2) Loopback b. After you use the TrackPoint, the pointer may drift on the screen for the bottom slot.Diagnostics --> Systemboard --> ...configuration in Diagnostics --> Communication: a. FRU Tests Product overview The following : v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 38 ThinkPad A21e
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...to-FRU index Symptom or error FRU or action, in IBM BIOS Setup Utility. 3. Battery pack. 0200 Hard disk error - Load Setup Defaults in sequence 0190 Critical low battery error. 1. The shadow RAM failure at offset nnnn. ...1. Extended RAM failure at offset nnnn. 1. System board. 0250 System battery error - Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. (continued) 42 ThinkPad A21e...
...to-FRU index Symptom or error FRU or action, in IBM BIOS Setup Utility. 3. Battery pack. 0200 Hard disk error - Load Setup Defaults in sequence 0190 Critical low battery error. 1. The shadow RAM failure at offset nnnn. ...1. Extended RAM failure at offset nnnn. 1. System board. 0250 System battery error - Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. (continued) 42 ThinkPad A21e...
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System board. Replace the backup battery. 3. Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. DIMM. 2. Shut down the computer and remove it from the docking station ThinkPad A21e 43 DIMM. 2. System board. 1. I/O card. 1. System board. 1. DIMM. 3. Diskette drive. 2. System board. 1. Symptom-to-FRU index Symptom or error 0280...Software NMI failure. 02F7 Fail-safe timer NMI failure. 1801 Attached docking station is not supported. Load Setup Defaults in IBM BIOS Setup Utility. 2. FRU or action, in sequence 1. DIMM. 2. External FDD cable. 3.
System board. Replace the backup battery. 3. Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. DIMM. 2. Shut down the computer and remove it from the docking station ThinkPad A21e 43 DIMM. 2. System board. 1. I/O card. 1. System board. 1. DIMM. 3. Diskette drive. 2. System board. 1. Symptom-to-FRU index Symptom or error 0280...Software NMI failure. 02F7 Fail-safe timer NMI failure. 1801 Attached docking station is not supported. Load Setup Defaults in IBM BIOS Setup Utility. 2. FRU or action, in sequence 1. DIMM. 2. External FDD cable. 3.
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... the computer entered hibernation mode. 2. Load Setup Defaults in IBM BIOS Setup Utility. 2. Backup battery. 3. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and...battery. 3. Backup battery. 3. System board. 1. Load Setup Defaults in sequence 1. Restore the system configuration to -FRU index FRU or action, in IBM BIOS Setup Utility. 2. DIMM. 2. Reinstall the operating system. 5. Fan. System board. 1. DIMM. 2. System board. 1. Maximum memory size is installed correctly. 2. Shut down the computer and remove the extra memory. 44 ThinkPad A21e...
... the computer entered hibernation mode. 2. Load Setup Defaults in IBM BIOS Setup Utility. 2. Backup battery. 3. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and...battery. 3. Backup battery. 3. System board. 1. Load Setup Defaults in sequence 1. Restore the system configuration to -FRU index FRU or action, in IBM BIOS Setup Utility. 2. DIMM. 2. Reinstall the operating system. 5. Fan. System board. 1. DIMM. 2. System board. 1. Maximum memory size is installed correctly. 2. Shut down the computer and remove the extra memory. 44 ThinkPad A21e...
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... all attached devices are installed, a short circuit is suspected, or the system is detected, replace the FRU shown by the computer. Battery pack e. Hard-disk drive f. Rerun the test to removing and replacing parts. Devices attached to -FRU index 3. External diskette drive ... operating correctly. (See "Power system checkout" on the computer. 5. PC Cards 4. The an IBM ThinkPad computer address this section carefully before replacing any damaged FRU. 3. DIMM h. ThinkPad A21e 47 Verify that the power supply being used at the time of the following FRUs one at ...
... all attached devices are installed, a short circuit is suspected, or the system is detected, replace the FRU shown by the computer. Battery pack e. Hard-disk drive f. Rerun the test to removing and replacing parts. Devices attached to -FRU index 3. External diskette drive ... operating correctly. (See "Power system checkout" on the computer. 5. PC Cards 4. The an IBM ThinkPad computer address this section carefully before replacing any damaged FRU. 3. DIMM h. ThinkPad A21e 47 Verify that the power supply being used at the time of the following FRUs one at ...
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... connecting and arranging internal cables, see "Locations" on after FRU replacement, make sure all power cords from electrical outlets, remove the battery pack, and then disconnect any FRUs that pertain to replacement. Establish personal grounding by shaking the computer gently and listening for rattling sounds...This section presents information and drawings for use the correct screw as shown in the procedures. Be sure to establish personal grounding. 50 ThinkPad A21e An untrained person runs the risk of the page. Any such FRUs are listed at the top of damaging parts. 2. Follow ...
... connecting and arranging internal cables, see "Locations" on after FRU replacement, make sure all power cords from electrical outlets, remove the battery pack, and then disconnect any FRUs that pertain to replacement. Establish personal grounding by shaking the computer gently and listening for rattling sounds...This section presents information and drawings for use the correct screw as shown in the procedures. Be sure to establish personal grounding. 50 ThinkPad A21e An untrained person runs the risk of the page. Any such FRUs are listed at the top of damaging parts. 2. Follow ...
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... that is danger of in landfills. The battery pack contains a small amount 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 To avoid possible injury: (1) replace...
... that is danger of in landfills. The battery pack contains a small amount 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 To avoid possible injury: (1) replace...
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1020 DIMM Removing and replacing a FRU v Battery pack (1010) Note: Loosen the screw 1 , but do not remove it firmly. Pivot the DIMM until it snaps into the socket, then press it . When installing: With the notched end of the DIMM toward the socket, insert the DIMM 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 firmly. Pivot the DIMM until it snaps into the socket, then press it . When installing: With the notched end of the DIMM toward the socket, insert the DIMM into place. Make sure that the card is firmly fixed in the slot and does not move easily. 52 ThinkPad A21e
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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
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...1030) ThinkPad A21e 55 MH12210]) contains lithium and can explode if it is incorrectly replaced. Replace only with a battery of the same type. The lithium battery (IBM P/N 02K6572 UL-recognized component [file no. Dispose of it . To avoid possible injury or death, do not: (1) throw or immerse the battery into water..., (2) allow it to heat to more than 100°C (212°F), or (3) attempt to repair or disassemble it as required by local ordinances or regulations. Removing and replacing a FRU 1040 Backup battery CAUTION: There is a danger ...
...1030) ThinkPad A21e 55 MH12210]) contains lithium and can explode if it is incorrectly replaced. Replace only with a battery of the same type. The lithium battery (IBM P/N 02K6572 UL-recognized component [file no. Dispose of it . To avoid possible injury or death, do not: (1) throw or immerse the battery into water..., (2) allow it to heat to more than 100°C (212°F), or (3) attempt to repair or disassemble it as required by local ordinances or regulations. Removing and replacing a FRU 1040 Backup battery CAUTION: There is a danger ...
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Removing and replacing a FRU 1050 Hard-disk drive Attention Do not drop or apply any shock to remove the security screw. 56 ThinkPad A21e The hard-disk drive is in suspend mode. Before removing the drive, have the user make a backup copy of data. Step Screw (quantity) 1 Coin screw (1) ... is operating or is sensitive to the cover. Incorrect handling can cause damage and permanent loss of all the information on the drive if possible. v Battery pack (1010) Note: The hard disk is attached to physical shock.
Removing and replacing a FRU 1050 Hard-disk drive Attention Do not drop or apply any shock to remove the security screw. 56 ThinkPad A21e The hard-disk drive is in suspend mode. Before removing the drive, have the user make a backup copy of data. Step Screw (quantity) 1 Coin screw (1) ... is operating or is sensitive to the cover. Incorrect handling can cause damage and permanent loss of all the information on the drive if possible. v Battery pack (1010) Note: The hard disk is attached to physical shock.
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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
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Removing and replacing a FRU 1080 Keyboard CRU insulator v Battery pack (1010) v Hard-disk drive (1050) v Ultrabay 2000 device (1060) v Keyboard (1070) ThinkPad A21e 63
Removing and replacing a FRU 1080 Keyboard CRU insulator v Battery pack (1010) v Hard-disk drive (1050) v Ultrabay 2000 device (1060) v Keyboard (1070) ThinkPad A21e 63