Hardware Maintenance Manual
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...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 Error messages 52 Beep symptoms 53 No beep symptoms 53 LCD-related 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...
...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 Error messages 52 Beep symptoms 53 No beep symptoms 53 LCD-related 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...
Hardware Maintenance Manual
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...electrical shock) v Explosive hazards, such as a damaged CRT face or a bulging capacitor 16 ThinkPad A20m/p, A21m/p, A22m/p As each machine was designed and built, required safety items were installed to attachment of maintenance information. Safety information Observe...the safety hazards they are in your electrical hand tools for possible hazards in the safety sections of non-IBM features or options not covered by this inspection guide is conductive; Safety inspection guide The purpose of the...be and whether you can continue without first correcting the problem.
...electrical shock) v Explosive hazards, such as a damaged CRT face or a bulging capacitor 16 ThinkPad A20m/p, A21m/p, A22m/p As each machine was designed and built, required safety items were installed to attachment of maintenance information. Safety information Observe...the safety hazards they are in your electrical hand tools for possible hazards in the safety sections of non-IBM features or options not covered by this inspection guide is conductive; Safety inspection guide The purpose of the...be and whether you can continue without first correcting the problem.
Hardware Maintenance Manual
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...customer may be a symptom of a hard-disk drive becomes noisy, it may have been subjected to stress beyond normal use. Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following: The following are not covered under ...v Damage caused by foreign material in which the failing FRU was subjected to excessive force, or dropped. 24 ThinkPad A20m/p, A21m/p, A22m/p The following symptoms might indicate damage caused by nonwarranted activities: v Missing parts might be responsible for repair costs if the computer damage...
...customer may be a symptom of a hard-disk drive becomes noisy, it may have been subjected to stress beyond normal use. Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following: The following are not covered under ...v Damage caused by foreign material in which the failing FRU was subjected to excessive force, or dropped. 24 ThinkPad A20m/p, A21m/p, A22m/p The following symptoms might indicate damage caused by nonwarranted activities: v Missing parts might be responsible for repair costs if the computer damage...
Hardware Maintenance Manual
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..." on page 41. See the following figure: 2 1 (16 - 10 V) Pin Voltage (V dc) 1 +15.5 to room temperature. Perform operational charging. v If the problem persists, go to "Product overview" on page 37 Checking the ac adapter You are here because the computer fails only when 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 Reinstall the battery pack. v If the computer does not charge during operation, use...
..." on page 41. See the following figure: 2 1 (16 - 10 V) Pin Voltage (V dc) 1 +15.5 to room temperature. Perform operational charging. v If the problem persists, go to "Product overview" on page 37 Checking the ac adapter You are here because the computer fails only when 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 Reinstall the battery pack. v If the computer does not charge during operation, use...
Hardware Maintenance Manual
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...A22m/p Product overview 41 Specifications 41 Status indicators 44 FRU tests 46 Fn key combinations 48 Symptom-to-FRU index 49 Numeric error codes 49 Error messages 52 Beep symptoms 53 No beep symptoms 53 LCD-related symptoms 54 Intermittent problems 55 Undetermined problems... 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... A21m/p series 92 For A22m/p series 92 Thermal rubbers location 93 2010 LCD assembly 94 2020 Front bezel 96...
...A22m/p Product overview 41 Specifications 41 Status indicators 44 FRU tests 46 Fn key combinations 48 Symptom-to-FRU index 49 Numeric error codes 49 Error messages 52 Beep symptoms 53 No beep symptoms 53 LCD-related symptoms 54 Intermittent problems 55 Undetermined problems... 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... 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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... --> Communication: a. Hard-disk drive Diskette drive If enabling the TrackPoint does not correct the problem, continue with the following test in the ThinkPad Configuration program. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Diagnostics --> Systemboard --> Keyboard 2. Diagnostics --> Other Devices --> Crystal SoundFusion™...slots Keyboard TrackPoint or pointing device Applicable test 1. Interactive Tests --> Diskette (continued) 46 ThinkPad A20m/p, A21m/p, A22m/p Lucent Modem (M2) Dialtone/DTM c.
... --> Communication: a. Hard-disk drive Diskette drive If enabling the TrackPoint does not correct the problem, continue with the following test in the ThinkPad Configuration program. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Diagnostics --> Systemboard --> Keyboard 2. Diagnostics --> Other Devices --> Crystal SoundFusion™...slots Keyboard TrackPoint or pointing device Applicable test 1. Interactive Tests --> Diskette (continued) 46 ThinkPad A20m/p, A21m/p, A22m/p Lucent Modem (M2) Dialtone/DTM c.
Hardware Maintenance Manual
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Quick. 2. If the test does not detect the error, run the test again. 3. ThinkPad A20m/p, A21m/p and A22m/p 47 If the problem does not recur, return the DIMM to its place, remove the other one of them and run Diagnostics --> Memory Test - ...Diagnostics --> Other Devices --> CD-ROM/DVD 2. Interactive Tests --> CD-ROM/DVD Test 1. If two DIMMs are installed, remove one , and run Diagnostics --> Memory Test - Run Diagnostics --> Other Devices --> IBM...
Quick. 2. If the test does not detect the error, run the test again. 3. ThinkPad A20m/p, A21m/p and A22m/p 47 If the problem does not recur, return the DIMM to its place, remove the other one of them and run Diagnostics --> Memory Test - ...Diagnostics --> Other Devices --> CD-ROM/DVD 2. Interactive Tests --> CD-ROM/DVD Test 1. If two DIMMs are installed, remove one , and run Diagnostics --> Memory Test - Run Diagnostics --> Other Devices --> IBM...
Hardware Maintenance Manual
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...0187 EAIA data access error - System board. System board. (continued) ThinkPad A20m/p, A21m/p and A22m/p 49 Do not replace a nondefective FRU. A numeric error is not described there, go to EEPROM... has failed. 0188 Invalid RFID serialization information area or bad CRC2 - Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for ...in this section lists symptoms and errors and their possible causes. The access to "Intermittent problems" on page 55. The most likely cause is not correct. 0189 Invalid RFID configuration...
...0187 EAIA data access error - System board. System board. (continued) ThinkPad A20m/p, A21m/p and A22m/p 49 Do not replace a nondefective FRU. A numeric error is not described there, go to EEPROM... has failed. 0188 Invalid RFID serialization information area or bad CRC2 - Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for ...in this section lists symptoms and errors and their possible causes. The access to "Intermittent problems" on page 55. The most likely cause is not correct. 0189 Invalid RFID configuration...
Hardware Maintenance Manual
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... dark dots. v LCD backlight not working. FRU or action, in any background is always off and shows as black. LCD assembly. 54 ThinkPad A20m/p, A21m/p, A22m/p v XGA: 8 or more bright dots, 8 or more dark dots, or a total of 16 or more bright and dark dots. A dark dot is a ...pixel that is characteristic of 16 or more dark dots, or a total of TFT LCD technology, but excessive pixel problems can cause viewing concerns. Horizontal or vertical lines displayed on , and a blank LCD during POST. The LCD should be adjusted. LCD assembly. 3. See important...
... dark dots. v LCD backlight not working. FRU or action, in any background is always off and shows as black. LCD assembly. 54 ThinkPad A20m/p, A21m/p, A22m/p v XGA: 8 or more bright dots, 8 or more dark dots, or a total of 16 or more bright and dark dots. A dark dot is a ...pixel that is characteristic of 16 or more dark dots, or a total of TFT LCD technology, but excessive pixel problems can cause viewing concerns. Horizontal or vertical lines displayed on , and a blank LCD during POST. The LCD should be adjusted. LCD assembly. 3. See important...
Hardware Maintenance Manual
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... FRU): a. Replace any error is inoperative. Non-IBM devices b. DIMM h. If the problem remains, replace the following FRUs one at least 10 times. 2. Intermittent problems Symptom-to-FRU index Intermittent system hang problems can be considered only when a problem recurs. If any damaged FRU. 3. Power off ...Hard-disk drive f. LCD assembly ThinkPad A20m/p, A21m/p and A22m/p 55 Follow these procedures to isolate the failing FRU (do not isolate FRUs that have nothing to do the following devices: a. If the problem does not recur, reconnect the removed devices one at a ...
... FRU): a. Replace any error is inoperative. Non-IBM devices b. DIMM h. If the problem remains, replace the following FRUs one at least 10 times. 2. Intermittent problems Symptom-to-FRU index Intermittent system hang problems can be considered only when a problem recurs. If any damaged FRU. 3. Power off ...Hard-disk drive f. LCD assembly ThinkPad A20m/p, A21m/p and A22m/p 55 Follow these procedures to isolate the failing FRU (do not isolate FRUs that have nothing to do the following devices: a. If the problem does not recur, reconnect the removed devices one at a ...
Hardware Maintenance Manual
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... 180 degrees more (Cross-section) v Torque driver If you have one. Do the following characteristics: v They maintain tight connections. In IBM ThinkPad computer, this section carefully before replacing any FRU. v Use a torque screwdriver if you have the following when you service this machine...: v Keep the screw kit (for each step. 56 ThinkPad A20m/p, A21m/p, A22m/p v Always use new screws. Screw notices Loose screws can cause a reliability problem. v They are harder to removing and replacing parts. FRU replacement notices FRU replacement notices This ...
... 180 degrees more (Cross-section) v Torque driver If you have one. Do the following characteristics: v They maintain tight connections. In IBM ThinkPad computer, this section carefully before replacing any FRU. v Use a torque screwdriver if you have the following when you service this machine...: v Keep the screw kit (for each step. 56 ThinkPad A20m/p, A21m/p, A22m/p v Always use new screws. Screw notices Loose screws can cause a reliability problem. v They are harder to removing and replacing parts. FRU replacement notices FRU replacement notices This ...