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... 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... 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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... Prevent the part from the factory with an optical storage device; Laser compliance statement Some IBM Personal Computer models are wearing a wrist strap. Use an ESD common ground or reference point...your skin to provide a static-free work mat to eliminate static on a double-insulated or battery-operated system. v Use the black side of the AC plug on these systems. - Attach ... 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 18 ThinkPad A20m/p, A21m/p, A22m/p You can be verified by a certified electrician. Use the round ground-prong of a ...
... Prevent the part from the factory with an optical storage device; Laser compliance statement Some IBM Personal Computer models are wearing a wrist strap. Use an ESD common ground or reference point...your skin to provide a static-free work mat to eliminate static on a double-insulated or battery-operated system. v Use the black side of the AC plug on these systems. - Attach ... 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 18 ThinkPad A20m/p, A21m/p, A22m/p You can be verified by a certified electrician. Use the round ground-prong of a ...
Hardware Maintenance Manual
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...drive can be replaced for the HDP: User only and Master + User. Attention If the SVP has been forgotten and cannot be entered in the IBM BIOS Setup Utility. Related service information Power-on password: A power-on password (POP) protects the system from the hard-disk drive. The SVP...The Master + User mode requires two HDPs; It it has, it to get access to the IBM BIOS Setup Utility and make changes to reset the password. Remove the battery pack. 28 ThinkPad A20m/p, A21m/p, A22m/p The system administrator then provides the user HDP to remove the power-on by an unauthorized ...
...drive can be replaced for the HDP: User only and Master + User. Attention If the SVP has been forgotten and cannot be entered in the IBM BIOS Setup Utility. Related service information Power-on password: A power-on password (POP) protects the system from the hard-disk drive. The SVP...The Master + User mode requires two HDPs; It it has, it to get access to the IBM BIOS Setup Utility and make changes to reset the password. Remove the battery pack. 28 ThinkPad A20m/p, A21m/p, A22m/p The system administrator then provides the user HDP to remove the power-on by an unauthorized ...
Hardware Maintenance Manual
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...field, enter the SVP. 6. then, in the Setup Configuration window. Reinstall the backup battery and the battery pack. (B) If an SVP has been set and is the letter of the hard-disk drive. The IBM BIOS Setup Utility menu appears. 3. In the Changes have been removed. Enter the SVP.... Select Power-On Password. 5. Press F10. 8. Related service information For how to remove the battery pack, see "1040 Backup battery" on page 66. 4. Remove the backup battery. When the Enter ...
...field, enter the SVP. 6. then, in the Setup Configuration window. Reinstall the backup battery and the battery pack. (B) If an SVP has been set and is the letter of the hard-disk drive. The IBM BIOS Setup Utility menu appears. 3. In the Changes have been removed. Enter the SVP.... Select Power-On Password. 5. Press F10. 8. Related service information For how to remove the battery pack, see "1040 Backup battery" on page 66. 4. Remove the backup battery. When the Enter ...
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... it enters standby mode. Hibernation mode Note for the APM operating system: Even if you do not set the low-battery alarm, the charge indicator notifies you when the battery is appropriate. Also, the computer automatically returns from standby mode and resume operation, do one of the following events: ... by PC Card device.) v The time set on timer selection in the "Power Management Properties" window. so if you have set the low-battery alarm, the computer may not do what you cannot create a hibernation file. In Windows 98, the Scheduled Tasks setting takes priority over the Resume...
... it enters standby mode. Hibernation mode Note for the APM operating system: Even if you do not set the low-battery alarm, the charge indicator notifies you when the battery is appropriate. Also, the computer automatically returns from standby mode and resume operation, do one of the following events: ... by PC Card device.) v The time set on timer selection in the "Power Management Properties" window. so if you have set the low-battery alarm, the computer may not do what you cannot create a hibernation file. In Windows 98, the Scheduled Tasks setting takes priority over the Resume...
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... and have set the mode to restart the system. v If you are using the ACPI operating system and have to Hibernate when battery becomes low, and the battery charge becomes critically low. When the power is powered off the power switch. In hibernation mode, the following occurs: v The system... the hard-disk drive is read, and system status is docked to enter hibernation mode, do not undock it from the hard-disk drive. 32 ThinkPad A20m/p, A21m/p, A22m/p Pressing the power button. - If you do any of the following : v Press the Fn + F12 keys. The hibernation file in...
... and have set the mode to restart the system. v If you are using the ACPI operating system and have to Hibernate when battery becomes low, and the battery charge becomes critically low. When the power is powered off the power switch. In hibernation mode, the following occurs: v The system... the hard-disk drive is read, and system status is docked to enter hibernation mode, do not undock it from the hard-disk drive. 32 ThinkPad A20m/p, A21m/p, A22m/p Pressing the power button. - If you do any of the following : v Press the Fn + F12 keys. The hibernation file in...
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...v PNPISA 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 the ...the screen. Power off the computer. 2. To exit the test, select Quit - Exit Diag. Power off the computer. 6. Checkout guide 5. Remove the battery pack. 3. If you power on the computer. 5. Note: After executing PC-Doctor, check the system time/date and reset them if needed. Follow ...
...v PNPISA 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 the ...the screen. Power off the computer. 2. To exit the test, select Quit - Exit Diag. Power off the computer. 6. Checkout guide 5. Remove the battery pack. 3. If you power on the computer. 5. Note: After executing PC-Doctor, check the system time/date and reset them if needed. Follow ...
Hardware Maintenance Manual
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...the ac adapter, do the following: v Replace the system board. 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. Unplug the ac adapter cable from the ac adapter does not always indicate...+15.5 to room temperature. If the voltage is still not charged, go to the next section. 36 ThinkPad A20m/p, A21m/p, A22m/p If the battery status indicator or icon does not turn on , remove the battery pack and let it is not correct, replace the ac adapter. 4. If the charge indicator or icon ...
...the ac adapter, do the following: v Replace the system board. 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. Unplug the ac adapter cable from the ac adapter does not always indicate...+15.5 to room temperature. If the voltage is still not charged, go to the next section. 36 ThinkPad A20m/p, A21m/p, A22m/p If the battery status indicator or icon does not turn on , remove the battery pack and let it is not correct, replace the ac adapter. 4. If the charge indicator or icon ...
Hardware Maintenance Manual
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...moment (but do the following : 1. If the resistance is correct, replace the system board. If the resistance is not correct, replace the battery pack. Note: If the battery pack becomes hot, it cools down . Power off the computer, and unplug the ac adapter from it . The resistance must be able ...to + 12.6 5 Ground (−) 3. To check the status of your battery, move your cursor to the Power Meter icon in the icon tray of its capacity. Turn the computer upside down , reinstall and recharge it . 2. ...
...moment (but do the following : 1. If the resistance is correct, replace the system board. If the resistance is not correct, replace the battery pack. Note: If the battery pack becomes hot, it cools down . Power off the computer, and unplug the ac adapter from it . The resistance must be able ...to + 12.6 5 Ground (−) 3. To check the status of your battery, move your cursor to the Power Meter icon in the icon tray of its capacity. Turn the computer upside down , reinstall and recharge it . 2. ...
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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. See the following figure. Measure the voltage of the backup battery. 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 Remove the battery pack (see "Checking the battery pack" on page 60 ). 4. Checkout guide 3.
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. See the following figure. Measure the voltage of the backup battery. 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 Remove the battery pack (see "Checking the battery pack" on page 60 ). 4. Checkout guide 3.
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ThinkPad A20m/p, A21m... 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 ID adapter . . . . 67 1060 Ultrabay 2000 device 69 1070 Keyboard 71 1080 Keyboard CRU insulator 74 1090 Hinge cover and clear sheet icon . . . . 75 1100 Keyboard bezel and speaker 76 1110 Microphone and speaker cable . . . . . 78 For A20m/p and A21m...RJ45/11 connector assembly 91 For A20m/p and A21m/p series 92 For A22m/p series 92 Thermal rubbers location 93 2010 LCD...
ThinkPad A20m/p, A21m... 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 ID adapter . . . . 67 1060 Ultrabay 2000 device 69 1070 Keyboard 71 1080 Keyboard CRU insulator 74 1090 Hinge cover and clear sheet icon . . . . 75 1100 Keyboard bezel and speaker 76 1110 Microphone and speaker cable . . . . . 78 For A20m/p and A21m...RJ45/11 connector assembly 91 For A20m/p and A21m/p series 92 For A22m/p series 92 Thermal rubbers location 93 2010 LCD...
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Blinking green: The battery has enough power ...move the system while the Green drive in the Ultrabay 2000. Blinking orange: The battery needs to being read from or written to operate, but is resuming normal operation. ...the status of the computer, as follows: Indicator 1 Battery Meaning Green: The battery is on . When this indicator is fully charged. The battery is low. This indicator does not blink in Windows...and Windows Me. 3 Drive in use Green: Data is being charged. Orange: The battery power is to be charged. when the indicator starts blinking orange, the computer beeps ...
Blinking green: The battery has enough power ...move the system while the Green drive in the Ultrabay 2000. Blinking orange: The battery needs to being read from or written to operate, but is resuming normal operation. ...the status of the computer, as follows: Indicator 1 Battery Meaning Green: The battery is on . When this indicator is fully charged. The battery is low. This indicator does not blink in Windows...and Windows Me. 3 Drive in use Green: Data is being charged. Orange: The battery power is to be charged. when the indicator starts blinking orange, the computer beeps ...
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... program. Interactive Tests --> Diskette (continued) 46 ThinkPad A20m/p, A21m/p, A22m/p Interactive Tests --> Video 1. Make sure the modem is not a hardware problem. Intel Modem Loopback/DTMF e. Lucent Modem (M2) Loopback b. Diagnostics --> Systemboard --> Keyboard 2. This symptom is set up correctly. 2. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Intel Modem Register d. If the TrackPoint is...
... program. Interactive Tests --> Diskette (continued) 46 ThinkPad A20m/p, A21m/p, A22m/p Interactive Tests --> Video 1. Make sure the modem is not a hardware problem. Intel Modem Loopback/DTMF e. Lucent Modem (M2) Loopback b. Diagnostics --> Systemboard --> Keyboard 2. This symptom is set up correctly. 2. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Intel Modem Register d. If the TrackPoint is...
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.... 0232 Extended RAM error - Extended RAM failure at offset nnnn. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0251 System CMOS checksum bad-Default configuration used. System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m/p The hard disk is cleared. System board. 021x Stuck key - Run interactive...
.... 0232 Extended RAM error - Extended RAM failure at offset nnnn. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0251 System CMOS checksum bad-Default configuration used. System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m/p The hard disk is cleared. System board. 021x Stuck key - Run interactive...
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... reset the time and date. 2. System board. 1. DIMM. 2. I/O card. 1. Diskette drive. 2. DIMM. 2. Symptom-to-FRU index FRU or action, in IBM BIOS Setup Utility. 2. ThinkPad A20m/p, A21m/p and A22m/p 51 Replace the backup battery. 3. System board. 1. System board. 1. Symptom or error 0270 Real-time clock error. 0271 Date and time error - System board. Neither...
... reset the time and date. 2. System board. 1. DIMM. 2. I/O card. 1. Diskette drive. 2. DIMM. 2. Symptom-to-FRU index FRU or action, in IBM BIOS Setup Utility. 2. ThinkPad A20m/p, A21m/p and A22m/p 51 Replace the backup battery. 3. System board. 1. System board. 1. Symptom or error 0270 Real-time clock error. 0271 Date and time error - System board. Neither...
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... that the operating system has no failure and is installed correctly. 2. Fan. 52 ThinkPad A20m/p, A21m/p, A22m/p I/O device IRQ conflict. Backup battery. 3. System board. 1. System board. 1. Hibernation error. Backup battery. 3. Fan error. Hard-disk drive. 7. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. System...
... that the operating system has no failure and is installed correctly. 2. Fan. 52 ThinkPad A20m/p, A21m/p, A22m/p I/O device IRQ conflict. Backup battery. 3. System board. 1. System board. 1. Hibernation error. Backup battery. 3. Fan error. Hard-disk drive. 7. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. System...
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... as cosmic radiation, electrostatic discharge, or software errors. Battery pack e. External diskette drive g. Visually check each FRU for the system board in the UltraslimBay i. Power on page 35.) 1. LCD assembly ThinkPad A20m/p, A21m/p and A22m/p 55 Rerun the test to the port replicator c. Non-IBM devices b. Devices attached to verify that no more errors...
... as cosmic radiation, electrostatic discharge, or software errors. Battery pack e. External diskette drive g. Visually check each FRU for the system board in the UltraslimBay i. Power on page 35.) 1. LCD assembly ThinkPad A20m/p, A21m/p and A22m/p 55 Rerun the test to the port replicator c. Non-IBM devices b. Devices attached to verify that no more errors...
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... the drawing. 7. 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 interconnecting cables. An untrained person runs the risk of the page. Begin by the numbers in square callouts. 5.... in the steps for use the correct screw as indicated in the drawings by removing any FRUs that have been trained and certified. ThinkPad A20m/p, A21m/p and A22m/p 59 Do not try to replacement. To put the new FRU in place, reverse the removal procedure and follow any...
... the drawing. 7. 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 interconnecting cables. An untrained person runs the risk of the page. Begin by the numbers in square callouts. 5.... in the steps for use the correct screw as indicated in the drawings by removing any FRUs that have been trained and certified. ThinkPad A20m/p, A21m/p and A22m/p 59 Do not try to replacement. To put the new FRU in place, reverse the removal procedure and follow any...
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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.