A Power Switch Problem; Keyboard Problems - IBM ThinkPad T40 Series Service And Troubleshooting Manual

Solution:
If you forgot your power-on password, you must take your computer to
an IBM authorized servicer or marketing representative to have the
password canceled.
If you forgot your hard disk password, IBM will not reset your password
or recover data from the hard disk. You must take your computer to an
IBM authorized servicer or an IBM marketing representative to have the
hard disk drive replaced. Proof of purchase is required, and a fee will be
charged for parts and service.
If you forgot your supervisor password, IBM will not reset your password.
You must take your computer to an IBM authorized servicer or IBM
marketing representative to have the system board replaced. Proof of
purchase is required, and a fee will be charged for parts and service.

A power switch problem

Problem:
The system does not respond, and you cannot turn off the computer.
Solution:
Turn off the computer by pressing and holding the power switch for 4
seconds or more. If the computer is still not reset, remove the ac adapter
and the battery.

Keyboard problems

Problem:
The pointer does not move after the computer returns from one of the
power management modes.
Solution:
Make sure you followed the instructions correctly when you installed
Windows with the Advanced Power Management (APM) option.
Note: The APM option is supported in Windows 98, and Windows NT
Problem:
All or some of the keys on the keyboard do not work.
Solution:
If the problem occurred immediately after the computer returned from
standby mode, enter the power-on password if one has been set.
If an external keyboard is connected, the numeric keypad on your
computer does not work. Use the numeric keypad on the external
keyboard.
If an external numeric keypad or a mouse is connected:
1. Turn off the computer.
2. Remove the external numeric keypad or the mouse.
Solving computer problems
Chapter 2. Solving computer problems
®
.
19