Chapter | Apple LC 580 specification

When you start up, a disk icon with a blinking question mark appears in the middle of the screen.

This icon indicates that your Macintosh cannot find the system software it needs to start up. One of the following is probably the cause:

mYour computer may be having a problem recognizing external equipment that uses the Small Computer System Interface (SCSI).

Turn off all external SCSI equipment and disconnect the first SCSI device in the chain from your computer’s SCSI port. Then restart the computer. If the computer starts up after you disconnect your SCSI equipment, refer to the manuals that came with the equipment for information on the proper way to connect SCSI equipment and assign SCSI ID numbers.

If you have a printer connected to your computer’s SCSI port, make sure your printer is not supposed to be connected to the printer port instead. Check the manuals that came with your printer for information on how to properly connect it.

mSystem software is not installed on the startup hard disk, the system software is damaged, or the hard disk is not working properly.

Start up your computer using the Disk Tools floppy disk or (if you have a built-inCD-ROM drive) with the CD-ROM disc that contains system software. (For instructions on how to start up your computer from the CD-ROM disc, see “Starting Up From a CD-ROM Disc” in the section “Initializing a Hard Disk” later in this chapter.) Then follow the instructions in “Repairing a Damaged Disk” later in this chapter to test your startup hard disk and repair any damage.

If repairing the disk doesn’t help, follow the instructions in “Installing or Reinstalling System Software” later in this chapter to reinstall system software on your startup hard disk.

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Apple LC 580 manual Chapter

Contents

User’s Guide Apple Computer, Inc Contents Troubleshooting Expanding Your Computer and Using Special Features Appendix a Health, Safety, and Maintenance Tips Index FCC statement Radio and television interference DOC statement Vcci statement CD-ROM drive Keyboard Computer power cord Mouse Optional security screws Macintosh computer Keyboard cable Getting Started Plugging in the computer When you are ready to begin, follow these steps Installing an expansion card Connecting the mouse and keyboard Connecting a keyboard with a separate cable Connecting other equipment Connecting a keyboard with a built-in cable Turning the computer on for the first time Hard disk icon Macintosh desktop Problems starting up? What’s next? Learning the basics Slide your mouse along your mouse pad or desk Reviewing the basics Guide h menu Turning the computer off You can also shut down your computer from the keyboard Turning the computer onClick Shut Down Where to find answers This bookGuide menu Other manuals Getting Help Getting answers to your questions Getting answers with the Topics button Macintosh Guide window, click the Topics button Click Setting Options in the list of topics Small window appears with instructions for you to followNow continue with the next section Read and follow the instructions in this window Getting answers with the Index button Macintosh Guide window, click the Index button Read and follow the instructions in the window Getting answers with the Look For button Macintosh Guide window, click the Look For button If you want to close Macintosh Guide, click here Tips for using Macintosh Guide Identifying objects on the screen Learning useful shortcuts Main Macintosh Shortcuts window appears Click one of the category buttons Expanding Your Computer Your computer at a glance Built-in microphone Sound control buttons¸ Screen control Buttons Stereo speakers Connecting additional equipment Using the sound control buttons on your computer Using the screen control buttons on your computer Using the built-in microphone Doing so may damage your equipment Connecting to a network Installing internal drives Expanding memory Installing and Using Application Programs Installing application programs Working with several programs at a time Switching programsFinding out which programs are open Backing up your files Hiding and showing windows on the desktop When you have questions When you run into trouble Take your time Start over Rebuild your desktop regularly Click OK Computer is turned on but the screen is dark Solutions to common problemsComputer’s clock keeps time inaccurately Chapter Sad Macintosh icon appears and the computer won’t start up Hard disk icon does not appear on the desktop Icons do not appear correctly on your screen Your Macintosh can’t read a floppy disk Pointer 8 freezes on the screen Pointer 8 doesn’t move when you move the mouse Dialog box with a bomb appears 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 Starting up from a floppy disk CD-ROM disc will remain in the CD-ROM driveShut down your computer Turn on the computer When initialization is complete, click Done Reinitializing your computer’s internal hard diskDouble-click the Internal HD Format icon to open it Type a name for your disk in the Name box 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 Repairing a damaged disk When do you need to repair a disk?Try these suggestions first Disks can become damaged by repeated use and handling Testing an external Scsi hard disk Checking for damage on your internal hard diskOpen the Internal HD Format icon Choose Scan All Blocks from the Functions menu 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 If Disk First Aid cannot correct the problem Click Repair to begin testing and repairing the disk 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 To do a clean installation, follow these steps Find and open the Apple HD SC Setup icon Hold down Shift-x-K to start the clean installation Click the Install New System Folder button and click OKFollowing dialog box appears Click Continue It takes a few minutes to complete the installation Click Clean Install Doing a custom installation Choose Custom Install from the pop-up menu Restart your Macintosh Appendix a Health, Safety, and Maintenance Tips Health-related information about computer use Musculoskeletal discomfort Eye fatigue Arranging your office Shoulders relaxed Avoiding fatigue What about electromagnetic emissions? Safety instructions Handling your computer equipment Handling the built-in monitor Handling the keyboard Handling floppy disks Ejecting a disk Power supply If you can’t eject a floppy disk Cleaning your equipment Cleaning the computer caseCleaning the monitor Cleaning the mouse Rotate the rollers to clean all around them Locking and unlocking the mouse Recessed area on ring Recessed area surrounding ring 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 Installing a communication card Communication slot is the rightmost slot on the logic boardRemove the communication card from its static-proof bag Align the card over the communication slot Closing the computer Press the reset button Reinsert the two retainer screws into the vertical plate Replace the back panel of the computer Caps Lock key Clear key Command key Special keys on Apple keyboards Arrow keys Power key Return key Control keyDelete key Enter key Index Index Index Index Index Index Index Apple Publishing System