Sharp PC-9080 Manual page 103

If operating from a battery, it may be discharged. Connect the AC cord.
Disconnect any peripherals such as an external mouse or keyboard, depress the
hardware reset switch on the bottom side of the notebook to reset the notebook.
Question: Why can't I start up the notebook?
Use a diagnostics software available commercially to check the notebook. If you
find the hard disk is damaged, you can format the hard disk by executing the
FORMAT command from the CD-ROM Setup Boot Disk, then restore the
software using the created disks (you will lose any data files you have not backed
up). If the Windows system files on your hard disk are damaged, re-install
Windows 95 from the CD-ROM Setup Boot Disk and Backup CD-ROM.
Question: Why is the screen blank?
Press the Spacebar to see if any power management feature has blanked the
screen to save power.
Check the indicator LEDs above the keyboard to verify that the notebook is
getting power. If the power indicator is not lit, check the electrical outlet, the plug
and power cord, and any power switches that may affect your notebook.
If you are using a battery pack, make sure it has a charge remaining, and that it is
installed correctly.
Check the brightness controls for your display.
Reset the notebook by pressing the Ctrl+Alt+Delete keys.
Turn the notebook off, wait a few seconds, and then turn the notebook back on.
C-2 Troubleshooting