Hardware Maintenance Manual
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IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual October 2001 This manual supports: ThinkPad A20m, A21m, A22m (MT 2628/2633) A20p, A21p, A22p (MT 2629) ThinkPad Dock (MT 2631)
IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual October 2001 This manual supports: ThinkPad A20m, A21m, A22m (MT 2628/2633) A20p, A21p, A22p (MT 2629) ThinkPad Dock (MT 2631)
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... 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 IBM Corp. 2001 v
... 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... 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 IBM Corp. 2001 v
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... 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
... 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
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... 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 A20m/p, A21m/p, A22m/p How to use error messages Use the error codes displayed on the screen to run a low-level format before replacing a hard-disk drive. If no...
... 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 A20m/p, A21m/p, A22m/p How to use error messages Use the error codes displayed on the screen to run a low-level format before replacing a hard-disk drive. If no...
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... 15 minutos como mínimo. Obtenga atención medica si se presenta algún síntoma del fluido despues de lavarse. 10 ThinkPad A20m/p, A21m/p, A22m/p Nel caso che caso l'LCD si dovesse rompere ed il liquido in esso contenuto entrasse in Kontakt mit Haut und Augen gerät, sollten die...
... 15 minutos como mínimo. Obtenga atención medica si se presenta algún síntoma del fluido despues de lavarse. 10 ThinkPad A20m/p, A21m/p, A22m/p Nel caso che caso l'LCD si dovesse rompere ed il liquido in esso contenuto entrasse in Kontakt mit Haut und Augen gerät, sollten die...
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...working in a safe place, away from walk areas so that you . Do not attempt to the customer. 14 ThinkPad A20m/p, A21m/p, A22m/p v Place removed covers and other parts in any objects that weigh more than 16 kg (35 lb) or objects that other conditions... that can stand safely without slipping. 2. Use a slow lifting force. v After service, reinstall all covers correctly before servicing an IBM mobile computer. Safety information Safety information The following section contains the safety information that makes the equipment unsafe. v Do not perform any heavy ...
...working in a safe place, away from walk areas so that you . Do not attempt to the customer. 14 ThinkPad A20m/p, A21m/p, A22m/p v Place removed covers and other parts in any objects that weigh more than 16 kg (35 lb) or objects that other conditions... that can stand safely without slipping. 2. Use a slow lifting force. v After service, reinstall all covers correctly before servicing an IBM mobile computer. Safety information Safety information The following section contains the safety information that makes the equipment unsafe. v Do not perform any heavy ...
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... be and whether you can cause serious or fatal electrical shock) v Explosive hazards, such as a damaged CRT face or a bulging capacitor 16 ThinkPad A20m/p, A21m/p, A22m/p Power supply units - Pumps - This guide addresses only those items. You should use worn or broken tools and testers. If any unsafe conditions are removed... medical aid. such touching can cause personal injury and machine damage. Use caution; Send another person to assist you in the safety sections of non-IBM features or options not covered by this inspection guide is conductive;
... be and whether you can cause serious or fatal electrical shock) v Explosive hazards, such as a damaged CRT face or a bulging capacitor 16 ThinkPad A20m/p, A21m/p, A22m/p Power supply units - Pumps - This guide addresses only those items. You should use worn or broken tools and testers. If any unsafe conditions are removed... medical aid. such touching can cause personal injury and machine damage. Use caution; Send another person to assist you in the safety sections of non-IBM features or options not covered by this inspection guide is conductive;
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... of the International Electrotechnical Commission (IEC) 825 and CENELEC EN 60 825 for Class 1 laser products. 18 ThinkPad A20m/p, A21m/p, A22m/p Grounding requirements Electrical grounding of the computer is desirable but not required to protect against your skin to the requirements of the Department of... Health and Human Services 21 Code of the AC plug on a double-insulated or battery-operated system. Laser compliance statement Some IBM Personal Computer models are equipped from touching your body. They are wearing a wrist strap. Note The use coax or connector-outside shells...
... of the International Electrotechnical Commission (IEC) 825 and CENELEC EN 60 825 for Class 1 laser products. 18 ThinkPad A20m/p, A21m/p, A22m/p Grounding requirements Electrical grounding of the computer is desirable but not required to protect against your skin to the requirements of the Department of... Health and Human Services 21 Code of the AC plug on a double-insulated or battery-operated system. Laser compliance statement Some IBM Personal Computer models are equipped from touching your body. They are wearing a wrist strap. Note The use coax or connector-outside shells...
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Some CD-ROM drives, DVD-ROM drives or the other optical storage device could result in exposure to hazardous laser radiation. Do not open. There are no serviceable parts inside those drives. Note the following: 20 ThinkPad A20m/p, A21m/p, A22m/p Laser compliance statement Opening the CD-ROM drive, DVD-ROM drive or the other optical storage devices contain an embedded Class 3A or Class 3B laser diode.
Some CD-ROM drives, DVD-ROM drives or the other optical storage device could result in exposure to hazardous laser radiation. Do not open. There are no serviceable parts inside those drives. Note the following: 20 ThinkPad A20m/p, A21m/p, A22m/p Laser compliance statement Opening the CD-ROM drive, DVD-ROM drive or the other optical storage devices contain an embedded Class 3A or Class 3B laser diode.
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... first __ 6. Customer's name and address Note for repair costs if the computer damage was subjected to excessive force, or dropped. 24 ThinkPad A20m/p, A21m/p, A22m/p Failing FRU name and part number __ 8.
... first __ 6. Customer's name and address Note for repair costs if the computer damage was subjected to excessive force, or dropped. 24 ThinkPad A20m/p, A21m/p, A22m/p Failing FRU name and part number __ 8.
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... 6 to change CDs. v To install the Service Partition, go to step 4. A message appears: "Full Recovery:". Enter the Y at each of the 26 ThinkPad A20m/p, A21m/p, A22m/p Following message appears: "Your computer originally included a Product Recovery program ... Reinstall the Product Recovery Program? (Y/N) [ ]". The system automatically reboots during this message ; v When the process...
... 6 to change CDs. v To install the Service Partition, go to step 4. A message appears: "Full Recovery:". Enter the Y at each of the 26 ThinkPad A20m/p, A21m/p, A22m/p Following message appears: "Your computer originally included a Product Recovery program ... Reinstall the Product Recovery Program? (Y/N) [ ]". The system automatically reboots during this message ; v When the process...
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... + User mode requires two HDPs; the system administrator enters both in the IBM BIOS Setup Utility. Supervisor password: A supervisor password (SVP) protects the system...a scheduled fee. Remove the battery pack. 28 ThinkPad A20m/p, A21m/p, A22m/p The systemboard must be made available to the servicer, there is available, IBM does not provide any services to reset either the user or the master...-disk drive can be replaced for a scheduled fee. 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 HDP...
... + User mode requires two HDPs; the system administrator enters both in the IBM BIOS Setup Utility. Supervisor password: A supervisor password (SVP) protects the system...a scheduled fee. Remove the battery pack. 28 ThinkPad A20m/p, A21m/p, A22m/p The systemboard must be made available to the servicer, there is available, IBM does not provide any services to reset either the user or the master...-disk drive can be replaced for a scheduled fee. 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 HDP...
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If you press Fn + F3, or the time set on the "LCD off timer" in IBM BIOS Setup Utility expires, v The LCD backlight turns off . If you are using the ACPI operating system and you are using the ACPI operating system. ..., press any operation with the keyboard, the TrackPoint, the hard disk, the parallel connector, or the diskette drive within that time. 30 ThinkPad A20m/p, A21m/p, A22m/p v The hard-disk drive motor stops. 3. To enter standby mode, press Fn + F4. Screen blank mode Screen blank mode has three variants, as follows: 1. Notes...
If you press Fn + F3, or the time set on the "LCD off timer" in IBM BIOS Setup Utility expires, v The LCD backlight turns off . If you are using the ACPI operating system and you are using the ACPI operating system. ..., press any operation with the keyboard, the TrackPoint, the hard disk, the parallel connector, or the diskette drive within that time. 30 ThinkPad A20m/p, A21m/p, A22m/p v The hard-disk drive motor stops. 3. To enter standby mode, press Fn + F4. Screen blank mode Screen blank mode has three variants, as follows: 1. Notes...
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... , the computer returns from the docking station before resuming normal operation. When the power is restored from the hard-disk drive. 32 ThinkPad A20m/p, A21m/p, A22m/p In hibernation mode, the following : v Press the Fn + F12 keys. Pressing the power button. - Pressing Fn + F4 keys. Related service information Note for OS/2 If...
... , the computer returns from the docking station before resuming normal operation. When the power is restored from the hard-disk drive. 32 ThinkPad A20m/p, A21m/p, A22m/p In hibernation mode, the following : v Press the Fn + F12 keys. Pressing the power button. - Pressing Fn + F4 keys. Related service information Note for OS/2 If...
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... test supports only the LCD display on the test menu are only for at least 2 seconds; Run the applicable function test. 34 ThinkPad A20m/p, A21m/p, A22m/p Full Memory Test - Quick Interactive Tests v Keyboard v Video v Internal Speaker v Mouse v Joystick Test v Diskette v System Load v CD-ROM/DVD Test v Stereo Speaker Notes: v In the...
... test supports only the LCD display on the test menu are only for at least 2 seconds; Run the applicable function test. 34 ThinkPad A20m/p, A21m/p, A22m/p Full Memory Test - Quick Interactive Tests v Keyboard v Video v Internal Speaker v Mouse v Joystick Test v Diskette v System Load v CD-ROM/DVD Test v Stereo Speaker Notes: v In the...
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... from the ac adapter does not always indicate a defect. If the voltage is still not charged, go to the next section. 36 ThinkPad A20m/p, A21m/p, A22m/p If the charge indicator or icon still does not turn on , replace the battery pack. Note: Noise from the computer. 2. Reinstall the battery pack. Checking...
... from the ac adapter does not always indicate a defect. If the voltage is still not charged, go to the next section. 36 ThinkPad A20m/p, A21m/p, A22m/p If the charge indicator or icon still does not turn on , replace the battery pack. Note: Noise from the computer. 2. Reinstall the battery pack. Checking...
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Remove the battery pack (see "Checking the battery pack" on page 60 ). 4. 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. v If the voltage is correct, replace the system board. 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 Measure the voltage of the backup battery. Checkout guide 3.
Remove the battery pack (see "Checking the battery pack" on page 60 ). 4. 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. v If the voltage is correct, replace the system board. 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 Measure the voltage of the backup battery. Checkout guide 3.
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ThinkPad A20m/p, A21m/p and A22m/p Product overview 41 Specifications ...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 . . . ...1110 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 ...A20m/p and A21m/p series 92 For A22m/p series 92 Thermal rubbers location 93 2010 LCD assembly 94 2020 Front bezel 96 ©...
ThinkPad A20m/p, A21m/p and A22m/p Product overview 41 Specifications ...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 . . . ...1110 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 ...A20m/p and A21m/p series 92 For A22m/p series 92 Thermal rubbers location 93 2010 LCD assembly 94 2020 Front bezel 96 ©...