Hardware Maintenance Manual
Page 5
...2 Safety notices: multilingual translations 3 Safety information 13 General safety 13 Electrical safety 14 Safety inspection guide 15 Handling devices that are sensitive to electorostatic discharge 16 Grounding requirements 17 Laser compliance statement 18 General descriptions 21 Read...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 series. . . . . 39... 60 1020 Backup battery 61 © Copyright IBM Corp. 2002 v
...2 Safety notices: multilingual translations 3 Safety information 13 General safety 13 Electrical safety 14 Safety inspection guide 15 Handling devices that are sensitive to electorostatic discharge 16 Grounding requirements 17 Laser compliance statement 18 General descriptions 21 Read...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 series. . . . . 39... 60 1020 Backup battery 61 © Copyright IBM Corp. 2002 v
Hardware Maintenance Manual
Page 21
... precautions when you in the safety sections of non-IBM features or options not covered by this inspection guide is conductive; First, check that it has been powered off power. - v Do not touch live electrical circuits with the power on suitable rubber mats (obtained locally, if necessary)... cables, power surges, and missing safety grounds. v Do not service the following parts with the reflective surface of the units.) v If an electrical accident occurs: - Use caution; Switch off . As each machine was designed and built, required safety items were installed to get medical aid....
... precautions when you in the safety sections of non-IBM features or options not covered by this inspection guide is conductive; First, check that it has been powered off power. - v Do not touch live electrical circuits with the power on suitable rubber mats (obtained locally, if necessary)... cables, power surges, and missing safety grounds. v Do not service the following parts with the reflective surface of the units.) v If an electrical accident occurs: - Use caution; Switch off . As each machine was designed and built, required safety items were installed to get medical aid....
Hardware Maintenance Manual
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.... 26 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Related service information v To preload the hard-disk drive without installing the service partition, press N key. 8. Power-on password: A power-on password (POP) protects the system from being powered on password (POP), the hard-disk password (HDP), and the supervisor password (SVP). The Master + User mode requires two...
.... 26 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Related service information v To preload the hard-disk drive without installing the service partition, press N key. 8. Power-on password: A power-on password (POP) protects the system from being powered on password (POP), the hard-disk password (HDP), and the supervisor password (SVP). The Master + User mode requires two...