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...
... 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...
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1060 Ultrabay 2000 device 58 1070 Keyboard 60 1080 Keyboard CRU insulator 63 1090 Hinge cover 64 1100 Keyboard bezel and speaker 65 1110 Speaker cable 67 1120 Sub card 68 1130 PC Card slot assembly 70 1140 Fan assembly 71 1150 Diskette drive 73 1160 Upper shield 74 1170 System board 75 2010 LCD assembly 77 2020 Front bezel 79 2030 Inverter card 81 2040 LCD panel 83 Locations 87 Front view 87 Rear view 88 Bottom view 89 Parts list 90 LCD FRU 93 Keyboard 95 Miscellaneous parts 96 Optional FRUs 98 Common parts list 99 Notices 100 Trademarks 100 iv ThinkPad A21e
1060 Ultrabay 2000 device 58 1070 Keyboard 60 1080 Keyboard CRU insulator 63 1090 Hinge cover 64 1100 Keyboard bezel and speaker 65 1110 Speaker cable 67 1120 Sub card 68 1130 PC Card slot assembly 70 1140 Fan assembly 71 1150 Diskette drive 73 1160 Upper shield 74 1170 System board 75 2010 LCD assembly 77 2020 Front bezel 79 2030 Inverter card 81 2040 LCD panel 83 Locations 87 Front view 87 Rear view 88 Bottom view 89 Parts list 90 LCD FRU 93 Keyboard 95 Miscellaneous parts 96 Optional FRUs 98 Common parts list 99 Notices 100 Trademarks 100 iv ThinkPad A21e
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... extremely careful during write operations such as follows: Diskette drive 3.5-inch Diskette capacity 1.0 MB 2.0 MB 4.0 MB Compatibility Read and write Read and write Not compatible 2 ThinkPad A21e Diskette compatibility matrix The compatibility of each of the drives with the first error code. If no error code is displayed, see if the error...
... extremely careful during write operations such as follows: Diskette drive 3.5-inch Diskette capacity 1.0 MB 2.0 MB 4.0 MB Compatibility Read and write Read and write Not compatible 2 ThinkPad A21e Diskette compatibility matrix The compatibility of each of the drives with the first error code. If no error code is displayed, see if the error...
Hardware Maintenance Manual
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...think are servicing the machine. Use a slow lifting force. v Do not perform any action that causes hazards to the customer. 12 ThinkPad A21e Make sure that your sleeves are good electrical conductors. v Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for ...wires. v Do not wear loose clothing that can stand safely without slipping. 2. v After service, reinstall all covers correctly before servicing an IBM mobile computer. General safety Follow these rules to lift. 4. v Keep your toolcase away from the muscles in any safety device that is long...
...think are servicing the machine. Use a slow lifting force. v Do not perform any action that causes hazards to the customer. 12 ThinkPad A21e Make sure that your sleeves are good electrical conductors. v Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for ...wires. v Do not wear loose clothing that can stand safely without slipping. 2. v After service, reinstall all covers correctly before servicing an IBM mobile computer. General safety Follow these rules to lift. 4. v Keep your toolcase away from the muscles in any safety device that is long...
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... for possible hazards in your work area. v Always look carefully for safe operational condition. Safety inspection guide The purpose of non-IBM features or options not covered by this inspection guide is conductive; This guide addresses only those items. You should use worn or ... shock) v Explosive hazards, such as a damaged CRT face or a bulging capacitor v Mechanical hazards, such as loose or missing hardware 14 ThinkPad A21e The surface is to assist you can cause personal injury and machine damage. Pumps - Motor generators and similar units. (This practice ensures correct ...
... for possible hazards in your work area. v Always look carefully for safe operational condition. Safety inspection guide The purpose of non-IBM features or options not covered by this inspection guide is conductive; This guide addresses only those items. You should use worn or ... shock) v Explosive hazards, such as a damaged CRT face or a bulging capacitor v Mechanical hazards, such as loose or missing hardware 14 ThinkPad A21e The surface is to assist you can cause personal injury and machine damage. Pumps - Motor generators and similar units. (This practice ensures correct ...
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...required to provide protection that meets the specific service requirement. Note The use coax or connector-outside shells on these systems. - Laser compliance statement Some IBM Personal Computer models are also sold separately as those listed below, to protect against ESD damage. - Elsewhere, the drive is certified to conform to ... and retains a charge even when you are wearing a wrist strap. Proper grounding of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 16 ThinkPad A21e to conform to any frame ground, ground braid, or green-wire ground. -
...required to provide protection that meets the specific service requirement. Note The use coax or connector-outside shells on these systems. - Laser compliance statement Some IBM Personal Computer models are also sold separately as those listed below, to protect against ESD damage. - Elsewhere, the drive is certified to conform to ... and retains a charge even when you are wearing a wrist strap. Proper grounding of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 16 ThinkPad A21e to conform to any frame ground, ground braid, or green-wire ground. -
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... the correct model. Name and phone number of service __ 3. Date of servicer __ 2. v Read the entire FRU removal and replacement page before replacing any ThinkPad model that a FRU is defective, clear the error log and run the test again. Failure symptoms, error codes appearing on which the machine failed __...
... the correct model. Name and phone number of service __ 3. Date of servicer __ 2. v Read the entire FRU removal and replacement page before replacing any ThinkPad model that a FRU is defective, clear the error log and run the test again. Failure symptoms, error codes appearing on which the machine failed __...
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... following: The following symptoms might be responsible for warranty: During the warranty period, the customer may have been subjected to excessive force, or dropped. 20 ThinkPad A21e Read this first __ 6. Machine type, model number, and serial number __ 9.
... following: The following symptoms might be responsible for warranty: During the warranty period, the customer may have been subjected to excessive force, or dropped. 20 ThinkPad A21e Read this first __ 6. Machine type, model number, and serial number __ 9.
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... password (SVP). You can use it . Supervisor password: A supervisor password (SVP) protects the system information stored in the IBM BIOS Setup Utility so that 22 ThinkPad A21e Passwords As many as three passwords may be accessible. Follow prompts to select. 10. The computer does not start the system.... and master HDP have been forgotten, the password cannot be removed and the hard disk will appear stating "Full Recovery:". When any ThinkPad computer: the power-on the screen whenever the computer is booted. Attention If the master HDP has been forgotten, there is entered....
... password (SVP). You can use it . Supervisor password: A supervisor password (SVP) protects the system information stored in the IBM BIOS Setup Utility so that 22 ThinkPad A21e Passwords As many as three passwords may be accessible. Follow prompts to select. 10. The computer does not start the system.... and master HDP have been forgotten, the password cannot be removed and the hard disk will appear stating "Full Recovery:". When any ThinkPad computer: the power-on the screen whenever the computer is booted. Attention If the master HDP has been forgotten, there is entered....
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Enter the master HDP; v The speaker is closed, click 24 ThinkPad A21e v Close the LCD cover. (To prevent the computer from entering standby mode when the LCD is ...remove the user HDP that you try to do warm-swap, the UltraBay LED starts to move down the menu. 4. The IBM BIOS Setup Utility menu appears. 3. Power management To reduce power consumption, the computer has three power management modes: screen blank ... occur in addition to what occurs in screen blank mode: v The LCD is the letter of ThinkPad A21e supports only cold-swap. To enter standby mode, do any key.
Enter the master HDP; v The speaker is closed, click 24 ThinkPad A21e v Close the LCD cover. (To prevent the computer from entering standby mode when the LCD is ...remove the user HDP that you try to do warm-swap, the UltraBay LED starts to move down the menu. 4. The IBM BIOS Setup Utility menu appears. 3. Power management To reduce power consumption, the computer has three power management modes: screen blank ... occur in addition to what occurs in screen blank mode: v The LCD is the letter of ThinkPad A21e supports only cold-swap. To enter standby mode, do any key.
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... keys are satisfied in the boot record on the hard-disk drive is read, and system status is restored from the hard-disk drive. 26 ThinkPad A21e v A critically low battery condition occurs.
... keys are satisfied in the boot record on the hard-disk drive is read, and system status is restored from the hard-disk drive. 26 ThinkPad A21e v A critically low battery condition occurs.
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...computer The ThinkPad computer has a test program called PC-Doctor DOS (hereafter called PC-Doctor). PC-Doctor cannot be powered on, go to "Power system checkout" on page 29, and check the power sources. then power on page 35. Verify the symptoms. Try to false indications of non-IBM products, prototype...the test, do as possible. 2. To run correctly. If you can select an item not only with the arrow keys, but also with the ThinkPad computer. Note: The diagnostic tests are disabled, such as a guide in as much detail as follows: Note: In the following procedures as the ...
...computer The ThinkPad computer has a test program called PC-Doctor DOS (hereafter called PC-Doctor). PC-Doctor cannot be powered on, go to "Power system checkout" on page 29, and check the power sources. then power on page 35. Verify the symptoms. Try to false indications of non-IBM products, prototype...the test, do as possible. 2. To run correctly. If you can select an item not only with the arrow keys, but also with the ThinkPad computer. Note: The diagnostic tests are disabled, such as a guide in as much detail as follows: Note: In the following procedures as the ...
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... menu appears. (Its exact form depends on the model.) The options on the screen. 2. Follow the instructions on ThinkPad. v Video Adapter test supports only the LCD display on the screen. Exit Diag. 28 ThinkPad A21e On the first screen, select the model and press Enter. Each key should be sensed. otherwise, it . 6. Checkout...
... menu appears. (Its exact form depends on the model.) The options on the screen. 2. Follow the instructions on ThinkPad. v Video Adapter test supports only the LCD display on the screen. Exit Diag. 28 ThinkPad A21e On the first screen, select the model and press Enter. Each key should be sensed. otherwise, it . 6. Checkout...
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..., do the following: v Replace the system board. Checking operational charging To check whether the battery charges properly during operation, go to the next section. 30 ThinkPad A21e Perform operational charging. If the charge indicator or icon still does not turn on , replace the battery pack. Unplug the ac adapter cable from the...
..., do the following: v Replace the system board. Checking operational charging To check whether the battery charges properly during operation, go to the next section. 30 ThinkPad A21e Perform operational charging. If the charge indicator or icon still does not turn on , replace the battery pack. Unplug the ac adapter cable from the...
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..., replace the battery pack. Wire Red Black Voltage (V dc) +2.5 to 30 K ohm. v If the backup battery discharges quickly after replacement, replace the system board. 32 ThinkPad A21e The resistance must be 4 to +3.2 Ground v If the voltage is correct, replace the system board. Remove the battery pack (see "Checking the battery pack" on...
..., replace the battery pack. Wire Red Black Voltage (V dc) +2.5 to 30 K ohm. v If the backup battery discharges quickly after replacement, replace the system board. 32 ThinkPad A21e The resistance must be 4 to +3.2 Ground v If the voltage is correct, replace the system board. Remove the battery pack (see "Checking the battery pack" on...
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panels 85 Locations 87 Front view 87 Rear view 88 Bottom view 89 Parts list 90 LCD FRU 93 33 and 15.0-in . 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 ...
panels 85 Locations 87 Front view 87 Rear view 88 Bottom view 89 Parts list 90 LCD FRU 93 33 and 15.0-in . 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 ...
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...following table lists the specifications of the ThinkPad A21e series: Feature Processor Bus architecture Memory (standard) Memory (optional) CMOS RAM Display Diskette drive Hard-disk drive I/O port Internal modem Audio PC Card AC adapter Bay device Description Intel® Celeron® processor 600 MHz, L2 128-KB cache PCI Bus 64... MB (SO DIMM x 1) 64 MB or 128 MB DIMM card (maximum of 256 MB) 114 bytes v 12.1-inch, 16M colors, SVGA (800×600 resolution) TFT color LCD v 14.1-inch,...
...following table lists the specifications of the ThinkPad A21e series: Feature Processor Bus architecture Memory (standard) Memory (optional) CMOS RAM Display Diskette drive Hard-disk drive I/O port Internal modem Audio PC Card AC adapter Bay device Description Intel® Celeron® processor 600 MHz, L2 128-KB cache PCI Bus 64... MB (SO DIMM x 1) 64 MB or 128 MB DIMM card (maximum of 256 MB) 114 bytes v 12.1-inch, 16M colors, SVGA (800×600 resolution) TFT color LCD v 14.1-inch,...
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This indicator does not blink in standby mode. The battery is in Windows 98, Windows 2000 and Windows Me. (continued) 36 ThinkPad A21e when the indicator starts blinking orange, the computer beeps three times. 2 Standby status Green: The computer is to being charged. Blinking green: The battery has ...
This indicator does not blink in standby mode. The battery is in Windows 98, Windows 2000 and Windows Me. (continued) 36 ThinkPad A21e when the indicator starts blinking orange, the computer beeps three times. 2 Standby status Green: The computer is to being charged. Blinking green: The battery has ...
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... move the system while the Green drive in the Ultrabay 2000. Green: This indicator stays lighted whenever the computer is on the keyboard is enabled. ThinkPad A21e 37 Green: The numeric keypad on . To enable or disable the keypad, press and hold the Fn key while pressing the NumLk key. If both...
... move the system while the Green drive in the Ultrabay 2000. Green: This indicator stays lighted whenever the computer is on the keyboard is enabled. ThinkPad A21e 37 Green: The numeric keypad on . To enable or disable the keypad, press and hold the Fn key while pressing the NumLk key. If both...