Hardware Maintenance Manual
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... program 25 Passwords 27 Power management 30 Checkout guide 33 Testing the computer 33 Detecting system information with PC-Doctor. . . 35 Power system checkout 35 ThinkPad A20m/p, A21m/p and A22m/p. . . . . 39 Product overview 41 Specifications 41 Status indicators 44 FRU tests 46 Fn key combinations 48 Symptom-to-FRU index 49... symptoms 54 Intermittent problems 55 Undetermined problems 55 FRU replacement notices 56 Screw notices 56 Retaining serial numbers 57 Removing and replacing a FRU 59 1010 Battery pack 60 1020 DIMM 61 1030 Mini PCI adapter 63 © Copyright...
... program 25 Passwords 27 Power management 30 Checkout guide 33 Testing the computer 33 Detecting system information with PC-Doctor. . . 35 Power system checkout 35 ThinkPad A20m/p, A21m/p and A22m/p. . . . . 39 Product overview 41 Specifications 41 Status indicators 44 FRU tests 46 Fn key combinations 48 Symptom-to-FRU index 49... symptoms 54 Intermittent problems 55 Undetermined problems 55 FRU replacement notices 56 Screw notices 56 Retaining serial numbers 57 Removing and replacing a FRU 59 1010 Battery pack 60 1020 DIMM 61 1030 Mini PCI adapter 63 © Copyright...
Hardware Maintenance Manual
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1040 Backup battery 66 1050 Hard-disk drive or RF ID adapter . . . . 67 1060 Ultrabay 2000 device 69 1070 Keyboard 71 1080 Keyboard CRU insulator...91 Thermal rubbers location 93 2010 LCD assembly 94 2020 Front bezel 96 2030 Inverter card 99 2040 LCD panel 101 3010 ThinkPad Dock PCI cover 105 3020 ThinkPad Dock top cover 107 Locations 112 Front view 112 Rear view 113 Bottom view 114 Parts list 115 A series model ...FRUs 136 Keyboard 140 Recovery CDs 141 Miscellaneous parts 145 Optional FRUs 147 Common parts list 148 Notices 150 Trademarks 150 vi ThinkPad A20m/p, A21m/p, A22m/p
1040 Backup battery 66 1050 Hard-disk drive or RF ID adapter . . . . 67 1060 Ultrabay 2000 device 69 1070 Keyboard 71 1080 Keyboard CRU insulator...91 Thermal rubbers location 93 2010 LCD assembly 94 2020 Front bezel 96 2030 Inverter card 99 2040 LCD panel 101 3010 ThinkPad Dock PCI cover 105 3020 ThinkPad Dock top cover 107 Locations 112 Front view 112 Rear view 113 Bottom view 114 Parts list 115 A series model ...FRUs 136 Keyboard 140 Recovery CDs 141 Miscellaneous parts 145 Optional FRUs 147 Common parts list 148 Notices 150 Trademarks 150 vi ThinkPad A20m/p, A21m/p, A22m/p
Hardware Maintenance Manual
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... Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 18 ThinkPad A20m/p, A21m/p, A22m/p Safety information v Wear a grounded wrist strap against ESD damage. -.... Use an ESD common ground or reference point when working on a double-insulated or battery-operated system. v Select a grounding system, such as those listed below, to any frame ...ground, ground braid, or green-wire ground. - Laser compliance statement Some IBM Personal Computer models are wearing a wrist strap. Grounding requirements Electrical grounding of the electrical ...
... Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 18 ThinkPad A20m/p, A21m/p, A22m/p Safety information v Wear a grounded wrist strap against ESD damage. -.... Use an ESD common ground or reference point when working on a double-insulated or battery-operated system. v Select a grounding system, such as those listed below, to any frame ...ground, ground braid, or green-wire ground. - Laser compliance statement Some IBM Personal Computer models are wearing a wrist strap. Grounding requirements Electrical grounding of the electrical ...
Hardware Maintenance Manual
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... forgotten, do the following: (A) If no SVP has been set . The SVP must be made available to the servicer, there is available, IBM does not provide any services to reset either the user or the master HDP, or to reset the password. Supervisor password: A supervisor password (SVP...the user v Master HDP-for the system administrator, who can be used for the HDP: User only and Master + User. Remove the battery pack. 28 ThinkPad A20m/p, A21m/p, A22m/p The password must be booted. The systemboard must be entered before an operating system can be replaced for a scheduled ...
... forgotten, do the following: (A) If no SVP has been set . The SVP must be made available to the servicer, there is available, IBM does not provide any services to reset either the user or the master HDP, or to reset the password. Supervisor password: A supervisor password (SVP...the user v Master HDP-for the system administrator, who can be used for the HDP: User only and Master + User. Remove the battery pack. 28 ThinkPad A20m/p, A21m/p, A22m/p The password must be booted. The systemboard must be entered before an operating system can be replaced for a scheduled ...
Hardware Maintenance Manual
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... drive is read, and system status is turned on, the computer returns from the hard-disk drive. 32 ThinkPad A20m/p, A21m/p, A22m/p v The system is docked to Hibernate when battery becomes low, and the battery charge becomes critically low. Note: If the computer enters the hibernation mode while it is powered off the...
... drive is read, and system status is turned on, the computer returns from the hard-disk drive. 32 ThinkPad A20m/p, A21m/p, A22m/p v The system is docked to Hibernate when battery becomes low, and the battery charge becomes critically low. Note: If the computer enters the hibernation mode while it is powered off the...
Hardware Maintenance Manual
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... persists, go to "Product overview" on page 41. Perform operational charging. v If the computer does not charge during operation, use a discharged battery pack or a battery pack that has less than 50% of the ac adapter cable. v If the power-on indicator does not turn on page 37 Checking the... the ac adapter is used: v If the power problem occurs only when the port replicator is still not charged, go to the next section. 36 ThinkPad A20m/p, A21m/p, A22m/p See the following : 1. If the voltage is not correct, replace the ac adapter. 4. Checkout guide v "Checking the ac adapter...
... persists, go to "Product overview" on page 41. Perform operational charging. v If the computer does not charge during operation, use a discharged battery pack or a battery pack that has less than 50% of the ac adapter cable. v If the power-on indicator does not turn on page 37 Checking the... the ac adapter is used: v If the power problem occurs only when the port replicator is still not charged, go to the next section. 36 ThinkPad A20m/p, A21m/p, A22m/p See the following : 1. If the voltage is not correct, replace the ac adapter. 4. Checkout guide v "Checking the ac adapter...
Hardware Maintenance Manual
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v If the backup battery discharges quickly after replacement, replace the system board. 38 ThinkPad A20m/p, A21m/p, A22m/p See the following figure. Red (+) Black (-) Wire Red Black Voltage (V dc) +2.5 to +3.2 Ground v If the voltage is not correct, replace the backup battery. Remove the battery pack (see "Checking the battery pack" on page 60 ). 4. Measure the voltage of the backup battery. Checkout guide 3. Remove the backup battery (see "1010 Battery pack" on page 37). 5. v If the voltage is correct, replace the system board.
v If the backup battery discharges quickly after replacement, replace the system board. 38 ThinkPad A20m/p, A21m/p, A22m/p See the following figure. Red (+) Black (-) Wire Red Black Voltage (V dc) +2.5 to +3.2 Ground v If the voltage is not correct, replace the backup battery. Remove the battery pack (see "Checking the battery pack" on page 60 ). 4. Measure the voltage of the backup battery. Checkout guide 3. Remove the backup battery (see "1010 Battery pack" on page 37). 5. v If the voltage is correct, replace the system board.
Hardware Maintenance Manual
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ThinkPad A20m/p, A21m/p and A22m/p Product overview 41 Specifications 41 Status indicators 44 FRU tests 46 Fn key combinations 48 Symptom-to-FRU index 49 ...notices 56 Retaining serial numbers 57 Restoring the serial number of the system unit 57 Retaining the UUID 57 Removing and replacing a FRU 59 1010 Battery pack 60 1020 DIMM 61 1030 Mini PCI adapter 63 For A20m/p, A21m/p series 64 For A22m/p series 65 1040 Backup... For A20m/p and A21m/p series 92 For A22m/p series 92 Thermal rubbers location 93 2010 LCD assembly 94 2020 Front bezel 96 © Copyright IBM Corp. 2001 39
ThinkPad A20m/p, A21m/p and A22m/p Product overview 41 Specifications 41 Status indicators 44 FRU tests 46 Fn key combinations 48 Symptom-to-FRU index 49 ...notices 56 Retaining serial numbers 57 Restoring the serial number of the system unit 57 Retaining the UUID 57 Removing and replacing a FRU 59 1010 Battery pack 60 1020 DIMM 61 1030 Mini PCI adapter 63 For A20m/p, A21m/p series 64 For A22m/p series 65 1040 Backup... For A20m/p and A21m/p series 92 For A22m/p series 92 Thermal rubbers location 93 2010 LCD assembly 94 2020 Front bezel 96 © Copyright IBM Corp. 2001 39
Hardware Maintenance Manual
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...Windows 2000 and Windows Me. 3 Drive in use light is being charged. Sudden physical shock could cause drive errors. (continued) 44 ThinkPad A20m/p, A21m/p, A22m/p when the indicator starts blinking orange, the computer beeps three times. 2 Standby status Green: The computer is ...Status indicators Product overview The system status indicators show the status of the computer, as follows: Indicator 1 Battery Meaning Green: The battery is low. Orange: The battery power is fully charged. Blinking green: The computer is entering standby mode or hibernation mode, or is ...
...Windows 2000 and Windows Me. 3 Drive in use light is being charged. Sudden physical shock could cause drive errors. (continued) 44 ThinkPad A20m/p, A21m/p, A22m/p when the indicator starts blinking orange, the computer beeps three times. 2 Standby status Green: The computer is ...Status indicators Product overview The system status indicators show the status of the computer, as follows: Indicator 1 Battery Meaning Green: The battery is low. Orange: The battery power is fully charged. Blinking green: The computer is entering standby mode or hibernation mode, or is ...
Hardware Maintenance Manual
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...the problem, continue with the following table shows the test for a short time. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. After you use the TrackPoint, the pointer may drift on the screen for each FRU. If the pointer stops after... a short time, no service action is set up correctly. 2. Replace the modem jack and the modem card in turn, and run the following test in the ThinkPad...
...the problem, continue with the following table shows the test for a short time. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. After you use the TrackPoint, the pointer may drift on the screen for each FRU. If the pointer stops after... a short time, no service action is set up correctly. 2. Replace the modem jack and the modem card in turn, and run the following test in the ThinkPad...
Hardware Maintenance Manual
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... removed. Reseat the hard-disk drive. 2. System board. 021x Stuck key - DIMM. 2. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0252 Password checksum bad - System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m/p password. 0194 Enter the supervisor The computer has been carried password. through a security...
... removed. Reseat the hard-disk drive. 2. System board. 021x Stuck key - DIMM. 2. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0252 Password checksum bad - System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m/p password. 0194 Enter the supervisor The computer has been carried password. through a security...
Hardware Maintenance Manual
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...NMI failure. System board. Replace the backup battery. 3. System board. Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. Run IBM BIOS Setup Utility to reset the time and date. 2. I/O card. 1. Diskette drive. 2. DIMM. 2. DIMM. 2. ThinkPad A20m/p, A21m/p and A22m/p 51 System... board. 1. External FDD cable. 3. DIMM. 2. System board. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 1. Symptom or error...
...NMI failure. System board. Replace the backup battery. 3. System board. Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. Run IBM BIOS Setup Utility to reset the time and date. 2. I/O card. 1. Diskette drive. 2. DIMM. 2. DIMM. 2. ThinkPad A20m/p, A21m/p and A22m/p 51 System... board. 1. External FDD cable. 3. DIMM. 2. System board. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 1. Symptom or error...
Hardware Maintenance Manual
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...drive. 6. If memory size has been changed, re-create the hibernation file. Failing bits: nnnn. Backup battery. 3. DIMM. 2. Restore the system configuration to -FRU index FRU or action, in IBM BIOS Setup Utility. 2. Operating system not found. DIMM. 2. Reseat the hard-disk drive. 4. I/O... System board. 1. Check that the operating system has no failure and is installed correctly. 2. Fan. 52 ThinkPad A20m/p, A21m/p, A22m/p Fan error. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. System board...
...drive. 6. If memory size has been changed, re-create the hibernation file. Failing bits: nnnn. Backup battery. 3. DIMM. 2. Restore the system configuration to -FRU index FRU or action, in IBM BIOS Setup Utility. 2. Operating system not found. DIMM. 2. Reseat the hard-disk drive. 4. I/O... System board. 1. Check that the operating system has no failure and is installed correctly. 2. Fan. 52 ThinkPad A20m/p, A21m/p, A22m/p Fan error. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. System board...
Hardware Maintenance Manual
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...(do not replace a nondefective FRU): a. Remove or disconnect all attached devices are installed, a short circuit is suspected, or the system is detected, do the following: 1. Battery pack e. External diskette drive g. Power on page 35.) 1. When analyzing an intermittent problem, do not replace any FRUs. 3. Verify that the power supply being used...Intermittent problems Symptom-to-FRU index Intermittent system hang problems can be considered only when a problem recurs. Run the diagnostic test for damage. LCD assembly ThinkPad A20m/p, A21m/p and A22m/p 55 Non...
...(do not replace a nondefective FRU): a. Remove or disconnect all attached devices are installed, a short circuit is suspected, or the system is detected, do the following: 1. Battery pack e. External diskette drive g. Power on page 35.) 1. When analyzing an intermittent problem, do not replace any FRUs. 3. Verify that the power supply being used...Intermittent problems Symptom-to-FRU index Intermittent system hang problems can be considered only when a problem recurs. Run the diagnostic test for damage. LCD assembly ThinkPad A20m/p, A21m/p and A22m/p 55 Non...
Hardware Maintenance Manual
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... sounds. Be sure to replacement. Follow the correct sequence in the steps for removing the FRU, as shown in place and are in the procedures. ThinkPad A20m/p, A21m/p and A22m/p 59 Begin by removing any interconnecting cables. An untrained person runs the risk of the page. Removing and replacing a FRU Removing... notices" on page 112. 8. Attention: The system board is powered on after FRU replacement, make sure that all power cords from electrical outlets, remove the battery pack, and then disconnect any FRUs that pertain to observe the following general rules: 1.
... sounds. Be sure to replacement. Follow the correct sequence in the steps for removing the FRU, as shown in place and are in the procedures. ThinkPad A20m/p, A21m/p and A22m/p 59 Begin by removing any interconnecting cables. An untrained person runs the risk of the page. Removing and replacing a FRU Removing... notices" on page 112. 8. Attention: The system board is powered on after FRU replacement, make sure that all power cords from electrical outlets, remove the battery pack, and then disconnect any FRUs that pertain to observe the following general rules: 1.
Hardware Maintenance Manual
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1010 Battery pack Removing and replacing a FRU DANGER Use only the battery in ignition or explosion of the battery. 60 ThinkPad A20m/p, A21m/p, A22m/p Use of an incorrect battery can result in the parts listing for your computer.
1010 Battery pack Removing and replacing a FRU DANGER Use only the battery in ignition or explosion of the battery. 60 ThinkPad A20m/p, A21m/p, A22m/p Use of an incorrect battery can result in the parts listing for your computer.
Hardware Maintenance Manual
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1020 DIMM Removing and replacing a FRU For access, remove this FRU: v "1010 Battery pack" on page 60 Note: Loosen the screw 1 , but do not remove it. (continued) ThinkPad A20m/p, A21m/p and A22m/p 61
1020 DIMM Removing and replacing a FRU For access, remove this FRU: v "1010 Battery pack" on page 60 Note: Loosen the screw 1 , but do not remove it. (continued) ThinkPad A20m/p, A21m/p and A22m/p 61
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Removing and replacing a FRU 1030 Mini PCI adapter For access, remove this FRU: v "1010 Battery pack" on page 60 Note: Loosen the screw 1 , but do not remove it. 1 2 (continued) ThinkPad A20m/p, A21m/p and A22m/p 63
Removing and replacing a FRU 1030 Mini PCI adapter For access, remove this FRU: v "1010 Battery pack" on page 60 Note: Loosen the screw 1 , but do not remove it. 1 2 (continued) ThinkPad A20m/p, A21m/p and A22m/p 63
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For access, remove these FRUs, in ignition or explosion of an incorrect battery can result in order: v "1010 Battery pack" on page 60 v "1020 DIMM" on page 61 v "1030 Mini PCI adapter" on page 63 66 ThinkPad A20m/p, A21m/p, A22m/p Use of the battery. Removing and replacing a FRU 1040 Backup battery DANGER Use only the battery in the parts listing for your computer.
For access, remove these FRUs, in ignition or explosion of an incorrect battery can result in order: v "1010 Battery pack" on page 60 v "1020 DIMM" on page 61 v "1030 Mini PCI adapter" on page 63 66 ThinkPad A20m/p, A21m/p, A22m/p Use of the battery. Removing and replacing a FRU 1040 Backup battery DANGER Use only the battery in the parts listing for your computer.
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For access, remove this FRU: v "1010 Battery pack" on the drive if possible. Before removing the drive, have the user make a backup copy of data. Step Screw (quantity) 1 Coin screw (1) or security screw (1) Note: Use a 2.5-mm Allen wrench to the hard-disk drive. ThinkPad A20m/p, A21m/p and A22m/p 67 Never remove the drive...
For access, remove this FRU: v "1010 Battery pack" on the drive if possible. Before removing the drive, have the user make a backup copy of data. Step Screw (quantity) 1 Coin screw (1) or security screw (1) Note: Use a 2.5-mm Allen wrench to the hard-disk drive. ThinkPad A20m/p, A21m/p and A22m/p 67 Never remove the drive...