Maintenance &
Service Guide
Presario 1600 Series Portable Computers
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Keyboard Solutions
Solving Minor Problems
Some minor problems and possible solutions are outlined
here. If the problem appears related to a software application, check the
documentation provided with the software.
Solving Keyboard/Numeric Keypad Problems
Some common causes and solutions for keyboard/numeric
keypad problems are listed in the following table.
Solving Keyboard/Numeric Keypad Problems |
Problem |
Probable Cause |
Solution(s) |
Embedded numeric keypad on
computer keyboard is disabled. |
Num Lock function is not enabled. |
Press the Shift+NumLk
keys to enable the Num Lock function and embedded numeric keypad. The Num Lock icon on the
status panel turns on. |
Embedded numeric keypad is
disabled and Num Lock function is on. |
External numeric keypad is
connected to the computer. |
Disconnect the external numeric
keypad from the computer. |
Back to Troubleshooting Without Diagnostics
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