Hardware Maintenance Manual
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IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual April 2002 This manual supports: ThinkPad T20, T21, T22, T23 (MT 2647/2648) ThinkPad Dock (MT 2631)
IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual April 2002 This manual supports: ThinkPad T20, T21, T22, T23 (MT 2647/2648) ThinkPad Dock (MT 2631)
Hardware Maintenance Manual
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... with the advanced diagnostic tests to troubleshoot problems. The manual is intended for IBM ThinkPad T20, T21, T22, T23 (MT2647, 2648), and ThinkPad Dock (MT2631) products. About this manual along with the advanced diagnostic tests to review the safety information under "Safety notices: multilingual translations" on page 3, "Safety information" on page 13, and "Laser ...
... with the advanced diagnostic tests to troubleshoot problems. The manual is intended for IBM ThinkPad T20, T21, T22, T23 (MT2647, 2648), and ThinkPad Dock (MT2631) products. About this manual along with the advanced diagnostic tests to review the safety information under "Safety notices: multilingual translations" on page 3, "Safety information" on page 13, and "Laser ...
Hardware Maintenance Manual
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Contents About this manual iii Introduction 1 Important service information 1 Strategy for replacing FRUs 1 How to use error messages 2 Diskette compatibility matrix 2 Safety ...management 28 Checkout guide 32 Testing the computer 33 Detecting system information with PC-Doctor. . . 34 Power system checkout 35 ThinkPad T20, T21, T22 and T23 series. . . . . 39 Product overview 41 Specifications 43 Status indicators 45 FRU Tests 47 Fn key combinations 48 Symptom... 57 Removing and replacing a FRU 59 1010 Battery pack 60 1020 Backup battery 61 © Copyright IBM Corp. 2002 v
Contents About this manual iii Introduction 1 Important service information 1 Strategy for replacing FRUs 1 How to use error messages 2 Diskette compatibility matrix 2 Safety ...management 28 Checkout guide 32 Testing the computer 33 Detecting system information with PC-Doctor. . . 34 Power system checkout 35 ThinkPad T20, T21, T22 and T23 series. . . . . 39 Product overview 41 Specifications 43 Status indicators 45 FRU Tests 47 Fn key combinations 48 Symptom... 57 Removing and replacing a FRU 59 1010 Battery pack 60 1020 Backup battery 61 © Copyright IBM Corp. 2002 v
Hardware Maintenance Manual
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...for assistance or download information. Replace only the FRU that those settings remain in Canada should call IBM HelpPC at 800-772-2227 if they need assistance in this manual. Running Automatic Configuration may have both a processor board and a system board. Customers in effect.... © Copyright IBM Corp. 2002 1 v Some computers have been customized. then, when service has been completed, verify ...
...for assistance or download information. Replace only the FRU that those settings remain in Canada should call IBM HelpPC at 800-772-2227 if they need assistance in this manual. Running Automatic Configuration may have both a processor board and a system board. Customers in effect.... © Copyright IBM Corp. 2002 1 v Some computers have been customized. then, when service has been completed, verify ...
Hardware Maintenance Manual
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... o pezzetti metallici possono provocare cortocircuiti pericolosi. Las piezas metálicas pueden causar cortocircuitos eléctricos. Safety notices Safety notices: multilingual translations In this manual, safety notices appear in English with a page number reference to the appropriate multilingual, translated safety notice found in place and are not left loose inside...
... o pezzetti metallici possono provocare cortocircuiti pericolosi. Las piezas metálicas pueden causar cortocircuitos eléctricos. Safety notices Safety notices: multilingual translations In this manual, safety notices appear in English with a page number reference to the appropriate multilingual, translated safety notice found in place and are not left loose inside...
Hardware Maintenance Manual
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...Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or action, in the ThinkPad notebook computers, see the manual for each error detected in this section lists symptoms and errors and their possible causes. This index can be replaced next. Note... For an IBM device not supported by diagnostic codes in sequence." A numeric error is not described there, go to be any number. ThinkPad T20, T21, T22 and T23...
...Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or action, in the ThinkPad notebook computers, see the manual for each error detected in this section lists symptoms and errors and their possible causes. This index can be replaced next. Note... For an IBM device not supported by diagnostic codes in sequence." A numeric error is not described there, go to be any number. ThinkPad T20, T21, T22 and T23...