nPress the power button, wait a second, and then press it again.

This procedure also has the effect of turning the computer off and back on. Turning the computer off with the power button removes a RAM disk and its contents.

nIf you have a floppy disk drive, restart from a floppy disk.

1.Insert the Disk Tools disk into the floppy disk drive.

2.Press the Power On key.

If the computer turns on, there is probably a problem with your hard disk. You may be able to fix the problem yourself (using the Disk First Aid program or another disk repair program; see the chapter on disks in the reference section). Or you may prefer to take the computer to your Apple- authorized service provider.

nIf you have a Duo MiniDock and an Apple HDI-30 SCSI Disk Adapter cable, connect your PowerBook Duo to a desktop Macintosh and start it up as a SCSI disk.

Your PowerBook Duo can be connected to a desktop Macintosh and used as an external SCSI disk drive. This feature allows you to reinstall system software on the PowerBook’s internal hard disk drive.

The procedure has two parts. First you need to connect your computer to a desktop Macintosh. Then you need to reinstall system software on your computer’s hard disk. Chapters 13 and 5, respectively, contain specific instructions.

Chapter 1: Setting Up Your PowerBook Duo 17

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Apple Duo 270C manual If you have a floppy disk drive, restart from a floppy disk