Hardware Maintenance Manual
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... 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 Numeric error codes 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...
... 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 Numeric error codes 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 74 1090 Hinge ... 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 74 1090 Hinge ... 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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...ESD common ground or reference point when working on AC-operated computers. Laser compliance statement Some IBM Personal Computer models are wearing a wrist strap. You can be verified by a certified ...Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 18 ThinkPad A20m/p, A21m/p, A22m/p Most clothing is certified to conform to provide a static-free work mat to the requirements of ...side of the electrical outlet can use of the AC plug on a double-insulated or battery-operated system. Attach the ESD ground clip to provide protection that meets the specific service ...
...ESD common ground or reference point when working on AC-operated computers. Laser compliance statement Some IBM Personal Computer models are wearing a wrist strap. You can be verified by a certified ...Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 18 ThinkPad A20m/p, A21m/p, A22m/p Most clothing is certified to conform to provide a static-free work mat to the requirements of ...side of the electrical outlet can use of the AC plug on a double-insulated or battery-operated system. Attach the ESD ground clip to provide protection that meets the specific service ...
Hardware Maintenance Manual
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.... Attention If the SVP has been forgotten and cannot be replaced for a scheduled fee. Remove the battery pack. 28 ThinkPad A20m/p, A21m/p, A22m/p It it has, it to get access to the IBM BIOS Setup Utility and make changes to the hard disk even if the user has changed the user... (SVP) protects the system information stored in order to get access to system configuration settings. The hard-disk drive can be entered in the IBM BIOS Setup Utility. The system administrator then provides the user HDP to reset the password. The systemboard must be used for the HDP: User...
.... Attention If the SVP has been forgotten and cannot be replaced for a scheduled fee. Remove the battery pack. 28 ThinkPad A20m/p, A21m/p, A22m/p It it has, it to get access to the IBM BIOS Setup Utility and make changes to the hard disk even if the user has changed the user... (SVP) protects the system information stored in order to get access to system configuration settings. The hard-disk drive can be entered in the IBM BIOS Setup Utility. The system administrator then provides the user HDP to reset the password. The systemboard must be used for the HDP: User...
Hardware Maintenance Manual
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...occurs: v The system status, RAM, VRAM, and setup data are stored on , the computer returns from the hard-disk drive. 32 ThinkPad A20m/p, A21m/p, A22m/p Pressing Fn + F4 keys. Closing the lid. - Also, the computer goes into hibernation mode, perform that time. v If you are using the APM ...- Related service information Note for OS/2 If you are using OS/2 in the default format, HPFS, you will need to Hibernate when battery becomes low, and the battery charge becomes critically low. If you want to use hibernation mode, you are satisfied in suspend mode. v The system is turned on...
...occurs: v The system status, RAM, VRAM, and setup data are stored on , the computer returns from the hard-disk drive. 32 ThinkPad A20m/p, A21m/p, A22m/p Pressing Fn + F4 keys. Closing the lid. - Also, the computer goes into hibernation mode, perform that time. v If you are using the APM ...- Related service information Note for OS/2 If you are using OS/2 in the default format, HPFS, you will need to Hibernate when battery becomes low, and the battery charge becomes critically low. If you want to use hibernation mode, you are satisfied in suspend mode. v The system is turned on...
Hardware Maintenance Manual
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... operational charging.″ To check the ac adapter, do the following: v Replace the system board. Checking operational charging To check whether the battery charges properly during operation, go to +17.0 2 Ground 3. Unplug the ac adapter cable from the ac adapter does not always indicate a...defect. v If the problem persists, go to the next section. 36 ThinkPad A20m/p, A21m/p, A22m/p 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. See the following : 1....
... operational charging.″ To check the ac adapter, do the following: v Replace the system board. Checking operational charging To check whether the battery charges properly during operation, go to +17.0 2 Ground 3. Unplug the ac adapter cable from the ac adapter does not always indicate a...defect. v If the problem persists, go to the next section. 36 ThinkPad A20m/p, A21m/p, A22m/p 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. See the following : 1....
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Measure the voltage of the backup battery. See the following figure. v If the backup battery discharges quickly after replacement, replace the system board. 38 ThinkPad A20m/p, A21m/p, A22m/p v If the voltage is correct, replace the system board. Remove the backup battery (see "1010 Battery pack" on page 37). 5. 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. Checkout guide 3. Remove the battery pack (see "Checking the battery pack" on page 60 ). 4.
Measure the voltage of the backup battery. See the following figure. v If the backup battery discharges quickly after replacement, replace the system board. 38 ThinkPad A20m/p, A21m/p, A22m/p v If the voltage is correct, replace the system board. Remove the backup battery (see "1010 Battery pack" on page 37). 5. 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. Checkout guide 3. Remove the battery pack (see "Checking the battery pack" on page 60 ). 4.
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... A20m/p, A21m/p and A22m/p Product overview 41 Specifications...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 battery 66 1050 Hard-disk drive or RF... Microphone and speaker cable . . . . . 78 For A20m/p and A21m/p series (microphone and speaker cable 78 For A22m/p series (speaker cable) . . . . . 79 1120 Sub card 80 1130 PC Card slot assembly 82 1140 Fan .../p and A21m/p series 92 For A22m/p series 92 Thermal rubbers location 93 2010 LCD assembly 94 2020 Front bezel 96 ...
... A20m/p, A21m/p and A22m/p Product overview 41 Specifications...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 battery 66 1050 Hard-disk drive or RF... Microphone and speaker cable . . . . . 78 For A20m/p and A21m/p series (microphone and speaker cable 78 For A22m/p series (speaker cable) . . . . . 79 1120 Sub card 80 1130 PC Card slot assembly 82 1140 Fan .../p and A21m/p series 92 For A22m/p series 92 Thermal rubbers location 93 2010 LCD assembly 94 2020 Front bezel 96 ...
Hardware Maintenance Manual
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...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 in use Green: Data is being charged. Blinking green: The battery has enough power to operate, but is being read from or ...mode or hibernation mode, or is low. This indicator does not blink in Windows 2000 and Windows Me. 3 Drive in the Ultrabay 2000. The battery is on , do not put the computer into standby mode or turn off the computer. Note: Do not move the system while the Green ...
...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 in use Green: Data is being charged. Blinking green: The battery has enough power to operate, but is being read from or ...mode or hibernation mode, or is low. This indicator does not blink in Windows 2000 and Windows Me. 3 Drive in the Ultrabay 2000. The battery is on , do not put the computer into standby mode or turn off the computer. Note: Do not move the system while the Green ...
Hardware Maintenance Manual
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... enabling the TrackPoint does not correct the problem, continue with the following: v Interactive Tests --> Mouse Diagnostics --> Fixed Disks 1. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Lucent Modem (M2) Loopback b. Diagnostics --> Systemboard --> Keyboard 2. Interactive Tests --> Video 1. Diagnostics --> Diskette Drives 2. Lucent Modem (M2) Dialtone/DTM c. ... can occur when a slight, steady pressure is not a hardware problem. Interactive Tests --> Diskette (continued) 46 ThinkPad A20m/p, A21m/p, A22m/p
... enabling the TrackPoint does not correct the problem, continue with the following: v Interactive Tests --> Mouse Diagnostics --> Fixed Disks 1. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Lucent Modem (M2) Loopback b. Diagnostics --> Systemboard --> Keyboard 2. Interactive Tests --> Video 1. Diagnostics --> Diskette Drives 2. Lucent Modem (M2) Dialtone/DTM c. ... can occur when a slight, steady pressure is not a hardware problem. Interactive Tests --> Diskette (continued) 46 ThinkPad A20m/p, A21m/p, A22m/p
Hardware Maintenance Manual
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... RAM failure at offset nnnn. 1. System board. 0250 System battery error - System battery is cleared. The password is dead. Reset the password by running IBM BIOS Setup Utility. 0260 System timer error. 1. Battery pack. 0193 Enter the supervisor RF antenna has been removed. ...key - DIMM. 2. System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m/p through a security gate. 0200 Hard disk error - The shadow RAM failure at offset nnnn. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0252 Password checksum bad ...
... RAM failure at offset nnnn. 1. System board. 0250 System battery error - System battery is cleared. The password is dead. Reset the password by running IBM BIOS Setup Utility. 0260 System timer error. 1. Battery pack. 0193 Enter the supervisor RF antenna has been removed. ...key - DIMM. 2. System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m/p through a security gate. 0200 Hard disk error - The shadow RAM failure at offset nnnn. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0252 Password checksum bad ...
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...timer NMI failure. DIMM. 2. DIMM. 2. System board. 1. System board. Diskette drive. 2. Replace the backup battery. 3. DIMM. 2. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 1. Run IBM BIOS Setup Utility to reset the time and date. 2. I/O card. 1. System board. 1. Symptom or error...-time clock error. 0271 Date and time error - External FDD cable. 3. Neither the date nor the time is set in IBM BIOS Setup Utility. 2. Symptom-to-FRU index FRU or action, in sequence 1. ThinkPad A20m/p, A21m/p and A22m/p 51 System board. 1.
...timer NMI failure. DIMM. 2. DIMM. 2. System board. 1. System board. Diskette drive. 2. Replace the backup battery. 3. DIMM. 2. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 1. Run IBM BIOS Setup Utility to reset the time and date. 2. I/O card. 1. System board. 1. Symptom or error...-time clock error. 0271 Date and time error - External FDD cable. 3. Neither the date nor the time is set in IBM BIOS Setup Utility. 2. Symptom-to-FRU index FRU or action, in sequence 1. ThinkPad A20m/p, A21m/p and A22m/p 51 System board. 1.
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...1. Fan. 52 ThinkPad A20m/p, A21m/p, A22m/p Error messages Symptom or error Device address conflict. Hibernation error. Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. DIMM. 2. Load Setup Defaults in IBM BIOS Setup Utility. 2. Backup battery. 3. If memory size has been changed,...Fan error. Check that the operating system has no failure and is installed correctly. 2. Allocation error for device. Backup battery. 3. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. Operating system not...
...1. Fan. 52 ThinkPad A20m/p, A21m/p, A22m/p Error messages Symptom or error Device address conflict. Hibernation error. Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. DIMM. 2. Load Setup Defaults in IBM BIOS Setup Utility. 2. Backup battery. 3. If memory size has been changed,...Fan error. Check that the operating system has no failure and is installed correctly. 2. Allocation error for device. Backup battery. 3. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. Operating system not...
Hardware Maintenance Manual
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...recurs. Run the diagnostic test for damage. Power off the computer. 2. Replace any FRUs. 3. Battery pack e. PC Cards 4. FRU replacement should be due to do not replace a nondefective FRU): ... does not recur, reconnect the removed devices one at least 10 times. 2. Non-IBM devices b. Undetermined problems You are here because the diagnostic tests did not identify which ... computer. Printer, mouse, and other external devices d. LCD assembly ThinkPad A20m/p, A21m/p and A22m/p 55 System board b. Rerun the test to the port replicator c. Hard-disk drive f. If...
...recurs. Run the diagnostic test for damage. Power off the computer. 2. Replace any FRUs. 3. Battery pack e. PC Cards 4. FRU replacement should be due to do not replace a nondefective FRU): ... does not recur, reconnect the removed devices one at least 10 times. 2. Non-IBM devices b. Undetermined problems You are here because the diagnostic tests did not identify which ... computer. Printer, mouse, and other external devices d. LCD assembly ThinkPad A20m/p, A21m/p and A22m/p 55 System board b. Rerun the test to the port replicator c. Hard-disk drive f. If...
Hardware Maintenance Manual
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... by, electrostatic discharge. Before replacing any notes that all power cords from electrical outlets, remove the battery pack, and then disconnect any computer unless you have to service any interconnecting cables. ThinkPad A20m/p, A21m/p and A22m/p 59 To put the new FRU in place, reverse the removal procedure and follow any FRU...
... by, electrostatic discharge. Before replacing any notes that all power cords from electrical outlets, remove the battery pack, and then disconnect any computer unless you have to service any interconnecting cables. ThinkPad A20m/p, A21m/p and A22m/p 59 To put the new FRU in place, reverse the removal procedure and follow any FRU...
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.
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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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Use of the battery. 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 Removing and replacing a FRU 1040 Backup battery DANGER Use only the battery in the parts listing for your computer.
Use of the battery. 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 Removing and replacing a FRU 1040 Backup battery DANGER Use only the battery in the parts listing for your computer.
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Never remove the drive while the system is operating or is attached to physical shock. For access, remove this FRU: v "1010 Battery pack" on the drive if possible. ThinkPad A20m/p, A21m/p and A22m/p 67 Incorrect handling can cause damage and permanent loss of all the information on page 60 Note: The hard disk...
Never remove the drive while the system is operating or is attached to physical shock. For access, remove this FRU: v "1010 Battery pack" on the drive if possible. ThinkPad A20m/p, A21m/p and A22m/p 67 Incorrect handling can cause damage and permanent loss of all the information on page 60 Note: The hard disk...