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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..., 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 compliance statement" on page 18. © Copyright IBM Corp. 2002 iii Use this manual along with ThinkPad products. Use this manual This manual...
..., 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 compliance statement" on page 18. © Copyright IBM Corp. 2002 iii Use this manual along with ThinkPad products. Use this manual This manual...
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 notices: multilingual translations 3 Safety information 13 General safety 13 Electrical safety 14 Safety inspection ... 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 ... 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 notices: multilingual translations 3 Safety information 13 General safety 13 Electrical safety 14 Safety inspection ... 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 ... pack 60 1020 Backup battery 61 © Copyright IBM Corp. 2002 v
Hardware Maintenance Manual
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... Make sure that changed the symptoms. Attention: The setup configuration on the IBM support site http://www.ibm.com/pc/support Advise customers to contact the PC Company HelpCenter at 800-...servicing may have both a processor board and a system board. Customers in Canada should call IBM HelpPC at 800-772-2227 if they need assistance in obtaining or installing any of the FRUs...correct the problem, reinstall the original FRU before replacing any FRUs listed in effect. © Copyright IBM Corp. 2002 1 The BIOS and device drivers are instructed to replace either the processor board or...
... Make sure that changed the symptoms. Attention: The setup configuration on the IBM support site http://www.ibm.com/pc/support Advise customers to contact the PC Company HelpCenter at 800-...servicing may have both a processor board and a system board. Customers in Canada should call IBM HelpPC at 800-772-2227 if they need assistance in obtaining or installing any of the FRUs...correct the problem, reinstall the original FRU before replacing any FRUs listed in effect. © Copyright IBM Corp. 2002 1 The BIOS and device drivers are instructed to replace either the processor board or...
Hardware Maintenance Manual
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... fixées. Compruébelo agitando el sistema y escuchando los posibles ruidos que provocarían. 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 English, French, German, Italian, and Spanish. Verify...
... fixées. Compruébelo agitando el sistema y escuchando los posibles ruidos que provocarían. 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 English, French, German, Italian, and Spanish. Verify...
Hardware Maintenance Manual
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... most likely cause is displayed for each error detected in the ThinkPad notebook computers, see the manual for that device. If replacing a FRU does not solve the... Invalid RFID serialization information area or bad CRC2-The EEPROM checksum is not correct. Battery pack. ThinkPad T20, T21, T22 and T23 series 49 In the displays, n can also help you determine, during regular servicing, what FRUs.... If the symptom is not described there, go to EEPROM is not correct. Note For an IBM device not supported by diagnostic codes in POST or system operation. Numeric error codes Symptom or error ...
... most likely cause is displayed for each error detected in the ThinkPad notebook computers, see the manual for that device. If replacing a FRU does not solve the... Invalid RFID serialization information area or bad CRC2-The EEPROM checksum is not correct. Battery pack. ThinkPad T20, T21, T22 and T23 series 49 In the displays, n can also help you determine, during regular servicing, what FRUs.... If the symptom is not described there, go to EEPROM is not correct. Note For an IBM device not supported by diagnostic codes in POST or system operation. Numeric error codes Symptom or error ...