Repairing a damaged disk | Apple LC 580 specification

Repairing a damaged disk

Disks can become damaged by repeated use and handling.

When do you need to repair a disk?

If you see a message reporting that a disk is damaged or unreadable, you may need to repair the disk.

Try these suggestions first

If you can’t start up from a hard disk or you don’t see the hard disk icon on the desktop, try the following:

mIf the hard disk is internal, shut down your Macintosh, wait at least 10 seconds, and then turn it on again.

mIf the hard disk is external, make sure that it is turned on and that its cable is connected firmly; then restart the Macintosh.

mIf the hard disk is your startup disk, start up with a different startup disk. If the hard disk’s icon appears on your desktop, reinstall system software on the hard disk (see “Installing or Reinstalling System Software” later in this chapter).

mCheck the ID numbers of all SCSI equipment connected to your computer. Each device must have a unique ID number (the computer itself has the ID number 7). Also check that the chain of devices is terminated properly. For information on setting SCSI ID numbers and terminating a SCSI chain, see the manuals that came with your SCSI equipment.

mTest the disk by following the instructions that come next.

Troubleshooting 59

Image 67

Apple LC 580 manual Repairing a damaged disk, When do you need to repair a disk?, Try these suggestions first

Contents

User’s Guide Apple Computer, Inc Contents Expanding Your Computer and Using Special Features Troubleshooting Index Appendix a Health, Safety, and Maintenance Tips Radio and television interference FCC statement Vcci statement CD-ROM drive DOC statement Macintosh computer Keyboard cable Keyboard Computer power cord Mouse Optional security screws Plugging in the computer Getting Started When you are ready to begin, follow these steps Installing an expansion card Connecting a keyboard with a separate cable Connecting the mouse and keyboard Connecting a keyboard with a built-in cable Connecting other equipment Turning the computer on for the first time Hard disk icon Macintosh desktop Problems starting up? What’s next? Slide your mouse along your mouse pad or desk Learning the basics Guide h menu Reviewing the basics Turning the computer off You can also shut down your computer from the keyboard Turning the computer onClick Shut Down Other manuals Where to find answersThis book Guide menu Getting Help Getting answers to your questions Macintosh Guide window, click the Topics button Getting answers with the Topics button Read and follow the instructions in this window Click Setting Options in the list of topicsSmall window appears with instructions for you to follow Now continue with the next section Macintosh Guide window, click the Index button Getting answers with the Index button Read and follow the instructions in the window Macintosh Guide window, click the Look For button Getting answers with the Look For button If you want to close Macintosh Guide, click here Tips for using Macintosh Guide Identifying objects on the screen Main Macintosh Shortcuts window appears Learning useful shortcuts Click one of the category buttons Expanding Your Computer Stereo speakers Your computer at a glanceBuilt-in microphone Sound control buttons ¸ Screen control Buttons Connecting additional equipment Using the sound control buttons on your computer Using the screen control buttons on your computer Doing so may damage your equipment Using the built-in microphone Connecting to a network Expanding memory Installing internal drives Installing and Using Application Programs Installing application programs Working with several programs at a time Switching programsFinding out which programs are open Hiding and showing windows on the desktop Backing up your files When you run into trouble When you have questions Take your time Start over Click OK Rebuild your desktop regularly Computer is turned on but the screen is dark Solutions to common problemsComputer’s clock keeps time inaccurately Chapter Hard disk icon does not appear on the desktop Sad Macintosh icon appears and the computer won’t start up Your Macintosh can’t read a floppy disk Icons do not appear correctly on your screen Pointer 8 freezes on the screen Dialog box with a bomb appears Pointer 8 doesn’t move when you move the mouse Typing on the keyboard produces nothing on the screen Chapter Troubleshooting You see a message that an application program can’t be found You experience problems using a document from a DOS computer Initializing a hard disk When do you need to initialize a hard disk?Starting up from a CD-ROM disc Turn on the computer Starting up from a floppy diskCD-ROM disc will remain in the CD-ROM drive Shut down your computer Type a name for your disk in the Name box When initialization is complete, click DoneReinitializing your computer’s internal hard disk Double-click the Internal HD Format icon to open it Initializing an external Scsi hard disk Open the Apple HD SC Setup iconClick Drive until the disk you want to initialize appears Click Init to initialize the hard disk Disks can become damaged by repeated use and handling Repairing a damaged diskWhen do you need to repair a disk? Try these suggestions first Choose Scan All Blocks from the Functions menu Testing an external Scsi hard diskChecking for damage on your internal hard disk Open the Internal HD Format icon Click Drive until the disk you want appears Open the Disk First Aid icon How to repair a hard disk or floppy diskClick the icon of the disk you want to test Click Repair to begin testing and repairing the disk If Disk First Aid cannot correct the problem When should you install system software? Installing or reinstalling system softwareWhen should you reinstall system software? Open the Apple HD SC Setup program Installing system softwareFind and open the Disk First Aid icon Easy Install dialog box appears Doing a clean installation of system software Find and open the Apple HD SC Setup icon To do a clean installation, follow these steps Click Continue Hold down Shift-x-K to start the clean installationClick the Install New System Folder button and click OK Following dialog box appears Click Clean Install It takes a few minutes to complete the installation Choose Custom Install from the pop-up menu Doing a custom installation Restart your Macintosh Health-related information about computer use Appendix a Health, Safety, and Maintenance Tips Musculoskeletal discomfort Arranging your office Eye fatigue Shoulders relaxed What about electromagnetic emissions? Avoiding fatigue Safety instructions Handling your computer equipment Handling the keyboard Handling the built-in monitor Ejecting a disk Handling floppy disks If you can’t eject a floppy disk Power supply Cleaning the mouse Cleaning your equipmentCleaning the computer case Cleaning the monitor Rotate the rollers to clean all around them Recessed area on ring Recessed area surrounding ring Locking and unlocking the mouse To unlock the mouse, follow these steps Appendix B Installing an Expansion Card Opening the computer Installing an Expansion Card Remove the two retainer screws from the vertical plate Remove the plastic access cover from the vertical plate Installing a processor-direct slot PDS cardAlign the card over the processor-direct slot Align the card over the communication slot Installing a communication cardCommunication slot is the rightmost slot on the logic board Remove the communication card from its static-proof bag Closing the computer Press the reset button Reinsert the two retainer screws into the vertical plate Replace the back panel of the computer Special keys on Apple keyboards Arrow keys Caps Lock key Clear key Command key Enter key Power key Return keyControl key Delete key Index Index Index Index Index Index Index Apple Publishing System