User's Manual

Troubleshooting 8-5
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For an external device that has its own power switch, make sure that the
power is turned on.
Hard Disk Drive Problems
The hard disk drive error message appears on the screen.
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The hard disk drive has defects. Ask your dealer for help.
The hard disk drive operations seem slow.
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The data files stored on the hard disk drive may be fragmented. Use a tool
such as Window’s Disk Defragmenter to defragment the files.
The hard disk drive in-use indicator glows without blinking.
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The data files stored on the hard disk drive may be fragmented. Use a tool
such as Window’s Disk Defragmenter to defragment the files.
Keyboard, Mouse and Touchpad Problems
The keyboard does not respond.
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Try connecting an external keyboard. If it works, contact an authorized
dealer, as the internal keyboard cable might be loose.
The numeric keypad is disabled.
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Make sure that Num Lock is switched on. (Check if the Num Lock Message
prompts or not.)
The external keyboard does not work.
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Make sure that the keyboard cable is properly connected.
The USB mouse does not work.
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Make sure that the mouse cable is properly connected.
The touchpad does not work, or the pointer is difficult to control with the
touchpad.
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Make sure that the pointing device driver is correctly installed.
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Make sure that the touchpad is clean.