Hardware Maintenance Manual
Page 3
... problems. The manual is intended for IBM ThinkPad T20, T21, T22, T23 (MT2647, 2648), and ThinkPad Dock (MT2631) products. Important This manual is divided into sections as follows: v The common sections provide general information, guidelines, and safety information required in servicing computers. v The product-specific section includes service, reference, and product-specific parts information. Before servicing an IBM ThinkPad product, be...
... problems. The manual is intended for IBM ThinkPad T20, T21, T22, T23 (MT2647, 2648), and ThinkPad Dock (MT2631) products. Important This manual is divided into sections as follows: v The common sections provide general information, guidelines, and safety information required in servicing computers. v The product-specific section includes service, reference, and product-specific parts information. Before servicing an IBM ThinkPad product, be...
Hardware Maintenance Manual
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... 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 notices: multilingual translations 3 Safety information 13 General safety 13 Electrical safety 14...service information 23 Service web site 23 Restoring the preloaded system 23 Passwords 26 Power 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...Backup battery 61 © Copyright IBM Corp. 2002 v
... 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 notices: multilingual translations 3 Safety information 13 General safety 13 Electrical safety 14...service information 23 Service web site 23 Restoring the preloaded system 23 Passwords 26 Power 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...Backup battery 61 © Copyright IBM Corp. 2002 v
Hardware Maintenance Manual
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...servicing may have both a processor board and a system board. Use the following strategy to prevent unnecessary expense for assistance or download information. Strategy for replacing FRUs Before replacing parts Make sure that those settings remain in Canada should call IBM HelpPC at 800-772-2227 if they need assistance in this manual...adapter or device consists of more than one of the error. Customers in effect. © Copyright IBM Corp. 2002 1 then, when service has been completed, verify that all diskette fixes are instructed to replace either the processor board or ...
...servicing may have both a processor board and a system board. Use the following strategy to prevent unnecessary expense for assistance or download information. Strategy for replacing FRUs Before replacing parts Make sure that those settings remain in Canada should call IBM HelpPC at 800-772-2227 if they need assistance in this manual...adapter or device consists of more than one of the error. Customers in effect. © Copyright IBM Corp. 2002 1 then, when service has been completed, verify that all diskette fixes are instructed to replace either the processor board or ...
Hardware Maintenance Manual
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...index can be replaced next. In the displays, n can also help you determine, during regular servicing, what FRUs are likely to need to EEPROM is not correct. Do not replace a nondefective FRU... System board. 0189 Invalid RFID configuration information area-The EEPROM checksum is failed. ThinkPad T20, T21, T22 and T23 series 49 System board. 0187 EAIA data access error-The access to be any ...cause is not correct. Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for each error detected in boldface type.
...index can be replaced next. In the displays, n can also help you determine, during regular servicing, what FRUs are likely to need to EEPROM is not correct. Do not replace a nondefective FRU... System board. 0189 Invalid RFID configuration information area-The EEPROM checksum is failed. ThinkPad T20, T21, T22 and T23 series 49 System board. 0187 EAIA data access error-The access to be any ...cause is not correct. Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for each error detected in boldface type.