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
... tools for safe operational condition. Pumps - Use caution; v Regularly inspect and maintain your work with the reflective surface of non-IBM features or options not covered by this inspection guide is conductive; such touching can cause personal injury and machine damage. v Do ...metal floor strips and machine frames. As each machine was designed and built, required safety items were installed to insulate you work area. Observe the special safety precautions when you from injury. Power supply units - Send another person to attachment of a plastic dental mirror....
... tools for safe operational condition. Pumps - Use caution; v Regularly inspect and maintain your work with the reflective surface of non-IBM features or options not covered by this inspection guide is conductive; such touching can cause personal injury and machine damage. v Do ...metal floor strips and machine frames. As each machine was designed and built, required safety items were installed to insulate you work area. Observe the special safety precautions when you from injury. Power supply units - Send another person to attachment of a plastic dental mirror....
Hardware Maintenance Manual
Page 32
... the service partition, press N key. 8. Follow the on the computer. 3. If you get access to the system user. 26 ThinkPad T20, T21, T22, T23 (MT 2647/2648) A message is booted. Follow the prompts to select. 10. Shut down and turn on -screen instructions. Passwords As many ...on. 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 password must be entered before an operating system can use the Recovery Repair diskette: 1. The Master + User mode requires two ...
... the service partition, press N key. 8. Follow the on the computer. 3. If you get access to the system user. 26 ThinkPad T20, T21, T22, T23 (MT 2647/2648) A message is booted. Follow the prompts to select. 10. Shut down and turn on -screen instructions. Passwords As many ...on. 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 password must be entered before an operating system can use the Recovery Repair diskette: 1. The Master + User mode requires two ...