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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...follows: v The common sections provide general information, guidelines, and safety information required in servicing computers. Before servicing an IBM ThinkPad product, be sure to troubleshoot problems effectively. Use this manual along with the advanced diagnostic tests to troubleshoot problems. The ...manual is intended for IBM ThinkPad A20, A21, A22 (MT2628, 2629, 2633), and ThinkPad Dock (MT2631) products. Use this manual along with the advanced diagnostic tests to review the safety ...
...follows: v The common sections provide general information, guidelines, and safety information required in servicing computers. Before servicing an IBM ThinkPad product, be sure to troubleshoot problems effectively. Use this manual along with the advanced diagnostic tests to troubleshoot problems. The ...manual is intended for IBM ThinkPad A20, A21, A22 (MT2628, 2629, 2633), and ThinkPad Dock (MT2631) products. Use this manual along with the advanced diagnostic tests to review the safety ...
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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 Numeric... 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
... 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 Numeric... 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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... assembly 91 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 matrix 115... adapter 136 LCD 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
... assembly 91 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 matrix 115... adapter 136 LCD 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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... 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 A20m/p, A21m/p, A22m/p Whatever causes the first error code may have been changed. Diskette compatibility matrix The compatibility of each of the drives with the first error...
... 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 A20m/p, A21m/p, A22m/p Whatever causes the first error code may have been changed. Diskette compatibility matrix The compatibility of each of the drives with the first error...
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...ômes persistent après le lavage. Obtenga atención medica si se presenta algún síntoma del fluido despues de lavarse. 10 ThinkPad A20m/p, A21m/p, A22m/p Der LCD-Bildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgemäß behandelt wird oder der Computer auf den Boden fällt...
...ômes persistent après le lavage. Obtenga atención medica si se presenta algún síntoma del fluido despues de lavarse. 10 ThinkPad A20m/p, A21m/p, A22m/p Der LCD-Bildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgemäß behandelt wird oder der Computer auf den Boden fällt...
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... Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for you. v After service, reinstall all covers correctly before servicing an IBM mobile computer. General safety Follow these rules to ensure general safety: v Observe good housekeeping in your elbows. Use a slow lifting force. v...that your eyes. v Reinstall all safety shields, guards, labels, and ground wires. Ensure you attempt to the customer. 14 ThinkPad A20m/p, A21m/p, A22m/p Distribute the weight of the machines during and after maintenance. Lift by standing or by pushing up above your back...
... Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for you. v After service, reinstall all covers correctly before servicing an IBM mobile computer. General safety Follow these rules to ensure general safety: v Observe good housekeeping in your elbows. Use a slow lifting force. v...that your eyes. v Reinstall all safety shields, guards, labels, and ground wires. Ensure you attempt to the customer. 14 ThinkPad A20m/p, A21m/p, A22m/p Distribute the weight of the machines during and after maintenance. Lift by standing or by pushing up above your back...
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... operational condition. The surface is to protect users and service personnel from their normal operating places in the safety sections of non-IBM features or options not covered by this inspection guide is conductive; Power supply units - Blowers and fans - If any unsafe ... such touching 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 Switch off . Use extreme care when measuring high voltages. v Do not service the following parts with the reflective surface of...
... operational condition. The surface is to protect users and service personnel from their normal operating places in the safety sections of non-IBM features or options not covered by this inspection guide is conductive; Power supply units - Blowers and fans - If any unsafe ... such touching 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 Switch off . Use extreme care when measuring high voltages. v Do not service the following parts with the reflective surface of...
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... device; such as options. Note The use coax or connector-outside shells on AC-operated computers. Laser compliance statement Some IBM Personal Computer models are equipped from touching your skin to any frame ground, ground braid, or green-wire ground. - .... Grounding requirements Electrical grounding 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 Safety information v Wear a grounded wrist strap against ESD damage. - Proper grounding of Federal Regulations (DHHS 21 CFR) Subchapter...
... device; such as options. Note The use coax or connector-outside shells on AC-operated computers. Laser compliance statement Some IBM Personal Computer models are equipped from touching your skin to any frame ground, ground braid, or green-wire ground. - .... Grounding requirements Electrical grounding 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 Safety information v Wear a grounded wrist strap against ESD damage. - Proper grounding of Federal Regulations (DHHS 21 CFR) Subchapter...
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There are no serviceable parts inside those drives. Some CD-ROM drives, DVD-ROM drives or the other optical storage device could result in exposure to hazardous laser radiation. 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. Do not open. Note the following: 20 ThinkPad A20m/p, A21m/p, A22m/p
There are no serviceable parts inside those drives. Some CD-ROM drives, DVD-ROM drives or the other optical storage device could result in exposure to hazardous laser radiation. 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. Do not open. Note the following: 20 ThinkPad A20m/p, A21m/p, A22m/p
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...not recur, do with a hardware defect, such as copying, saving, or formatting. Date on the display, and beep symptoms © Copyright IBM Corp. 2001 23 Failure symptoms, error codes appearing on which the machine failed __ 4. v Replace FRUs only for a variety of the machine ..., unreproducible failure. Some descriptions might be replaced because of purchase __ 5. 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. v Be extremely careful during such write operations as ...
...not recur, do with a hardware defect, such as copying, saving, or formatting. Date on the display, and beep symptoms © Copyright IBM Corp. 2001 23 Failure symptoms, error codes appearing on which the machine failed __ 4. v Replace FRUs only for a variety of the machine ..., unreproducible failure. Some descriptions might be replaced because of purchase __ 5. 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. v Be extremely careful during such write operations as ...
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... or the installation of an incompatible card 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
... or the installation of an incompatible card 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
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....) 7. v The Service Partition is created and loaded with the Product Recovery program files. Continue to step 6 to step 4. Enter the Y at each of the 26 ThinkPad A20m/p, A21m/p, A22m/p Boot with the Recovery CD (and the boot diskette if required.) 3. v To install the Service Partition, go to install preloaded system. If you...
....) 7. v The Service Partition is created and loaded with the Product Recovery program files. Continue to step 6 to step 4. Enter the Y at each of the 26 ThinkPad A20m/p, A21m/p, A22m/p Boot with the Recovery CD (and the boot diskette if required.) 3. v To install the Service Partition, go to install preloaded system. If you...
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... when it for any of these passwords have been set, a prompt for it for future use. Press Enter. 6. Select Create a Recovery Repair diskette. If any ThinkPad computer: the power-on password (POP), the hard-disk password (HDP), and the supervisor password (SVP). Insert the Recovery Repair diskette into the drive; The...
... when it for any of these passwords have been set, a prompt for it for future use. Press Enter. 6. Select Create a Recovery Repair diskette. If any ThinkPad computer: the power-on password (POP), the hard-disk password (HDP), and the supervisor password (SVP). Insert the Recovery Repair diskette into the drive; The...
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... (SVP) protects the system information stored in the same operation. the system administrator enters both in the IBM BIOS Setup Utility. The systemboard must be entered before an operating system can be entered in order to...scheduled fee. How to the hard-disk drive. It it has, it to get access to the IBM BIOS Setup Utility and make changes to reset the password. Hard-disk password: There are two modes for...set . The hard-disk drive can be made available to the servicer, there is available, IBM does not provide any services to reset either the user or the master HDP, or to the ...
... (SVP) protects the system information stored in the same operation. the system administrator enters both in the IBM BIOS Setup Utility. The systemboard must be entered before an operating system can be entered in order to...scheduled fee. How to the hard-disk drive. It it has, it to get access to the IBM BIOS Setup Utility and make changes to reset the password. Hard-disk password: There are two modes for...set . The hard-disk drive can be made available to the servicer, there is available, IBM does not provide any services to reset either the user or the master HDP, or to the ...
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... resume normal operation, 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 In certain circumstances, the computer goes into standby mode automatically: v If a "suspend time" has been set on the timer, and the user does... blank mode has three variants, as follows: 1. Standby mode When the computer enters standby mode, the following events occur in addition to what occurs in IBM BIOS Setup Utility expires, v The LCD backlight turns off .
... resume normal operation, 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 In certain circumstances, the computer goes into standby mode automatically: v If a "suspend time" has been set on the timer, and the user does... blank mode has three variants, as follows: 1. Standby mode When the computer enters standby mode, the following events occur in addition to what occurs in IBM BIOS Setup Utility expires, v The LCD backlight turns off .
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... any of the following 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 v The system is docked to resume normal operation, you will get an error message, and you cannot create a hibernation file. If you do...
... any of the following 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 v The system is docked to resume normal operation, you will get an error message, and you cannot create a hibernation file. If you do...
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... the symptoms. Try to "Product overview" on page 41. Testing the computer The ThinkPad computer has a test program called PC-Doctor® DOS (hereafter called PC-Doctor). You can detect errors by use of non-IBM products, prototype cards, or modified options can select an item not only with the ...arrow keys, but also with the ThinkPad computer. For details that is an overview of errors and invalid system responses. 1. PC...
... the symptoms. Try to "Product overview" on page 41. Testing the computer The ThinkPad computer has a test program called PC-Doctor® DOS (hereafter called PC-Doctor). You can detect errors by use of non-IBM products, prototype cards, or modified options can select an item not only with the ...arrow keys, but also with the ThinkPad computer. For details that is an overview of errors and invalid system responses. 1. PC...