Lenovo ThinkPad A22p Service and Troubleshooting Guide for A22m and A22p - Page 28

Keyboard problems

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Solving computer problems Keyboard problems Problem: The cursor 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. Problem: All or some 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. 3. Turn on the computer and try using the keyboard again. If the keyboard problem is resolved, carefully reconnect the external numeric keypad, external keyboard, or mouse, making sure that you have seated the connectors properly. If keys on the keyboard still do not work, have the computer serviced. Problem: A number appears when you type a letter. Solution: The numeric lock function is on. To disable it, press and hold Shift; then press NumLk. Problem: All or some keys on the external numeric keypad do not work. Solution: Make sure that the external numeric keypad is correctly connected to the computer. Problem: All or some keys on the external keyboard do not work. Solution: To use an external keyboard, you need to attach the keyboard/mouse cable to the computer. Make sure that: v The keyboard/mouse cable is correctly connected to the computer. v The keyboard cable is connected to the correct side of the keyboard/mouse cable. 18 ThinkPad® A22 Service and Troubleshooting Guide

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Keyboard problems
Problem:
The cursor 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.
Problem:
All or some 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.
3.
Turn on the computer and try using the keyboard again.
If the keyboard problem is resolved, carefully reconnect the external numeric
keypad, external keyboard, or mouse, making sure that you have seated the
connectors properly.
If keys on the keyboard still do not work, have the computer serviced.
Problem:
A number appears when you type a letter.
Solution:
The numeric lock function is on. To disable it, press and hold
Shift
;
then press
NumLk
.
Problem:
All or some keys on the external numeric keypad do not work.
Solution:
Make sure that the external numeric keypad is correctly connected
to the computer.
Problem:
All or some keys on the external keyboard do not work.
Solution:
To use an external keyboard, you need to attach the
keyboard/mouse cable to the computer. Make sure that:
v
The keyboard/mouse cable is correctly connected to the computer.
v
The keyboard cable is connected to the correct side of the keyboard/mouse
cable.
Solving computer problems
18
ThinkPad
®
A22 Service and Troubleshooting Guide