Apple LC 580 specification

Check the startup disk and program you were using when the problem occurred. Make sure that all programs, desk accessories, and system extensions you’re using are compatible with the system software. Try starting up the computer from the Disk Tools disk or 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.) If your computer starts up normally, there may be an extension conflict.

If the problem recurs, you may need to reinstall system software. See “Installing or Reinstalling System Software” later in this chapter for instructions.

mThe mouse is not connected properly.

Turn the computer off using the power switch, check that the mouse and keyboard cables are connected properly, and then restart the computer.

mSignals from the mouse are not reaching the computer, either because the mouse needs cleaning or because there is something wrong with the mouse.

Clean the mouse according to the instructions in Appendix A of this book.

If you have another mouse or pointing device, try connecting and using it. (Turn off the computer before connecting it.) If the new device works, there is probably something wrong with the mouse you replaced.

If none of these procedures solves the problem, consult the service and support information that came with your computer for instructions on how to contact an Apple-authorized service provider or Apple for assistance.

Typing on the keyboard produces nothing on the screen.

One of the following is probably the cause:

mYour system has a software problem.

Restart your Macintosh. For instructions, see “Start Over” in the section “When You Run Into Trouble” earlier in this chapter.

Check the startup disk and application program you were using when the problem occurred. Make sure that all programs, desk accessories, and system extensions you’re using are compatible with the system software.

Troubleshooting 49

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Apple LC 580 manual Typing on the keyboard produces nothing on the screen

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 Turning the computer on You can also shut down your computer from the keyboardClick Shut Down This book Where to find answersGuide menu Other manuals Getting Help Getting answers to your questions Macintosh Guide window, click the Topics button Getting answers with the Topics button Small window appears with instructions for you to follow Click Setting Options in the list of topicsNow continue with the next section Read and follow the instructions in this window 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 Built-in microphone Sound control buttons Your computer at a glance¸ Screen control Buttons Stereo speakers 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 Switching programs Working with several programs at a timeFinding 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 Solutions to common problems Computer is turned on but the screen is darkComputer’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 When do you need to initialize a hard disk? Initializing a hard diskStarting up from a CD-ROM disc CD-ROM disc will remain in the CD-ROM drive Starting up from a floppy diskShut down your computer Turn on the computer Reinitializing your computer’s internal hard disk When initialization is complete, click DoneDouble-click the Internal HD Format icon to open it Type a name for your disk in the Name box Open the Apple HD SC Setup icon Initializing an external Scsi hard diskClick Drive until the disk you want to initialize appears Click Init to initialize the hard disk When do you need to repair a disk? Repairing a damaged diskTry these suggestions first Disks can become damaged by repeated use and handling Checking for damage on your internal hard disk Testing an external Scsi hard diskOpen the Internal HD Format icon Choose Scan All Blocks from the Functions menu Click Drive until the disk you want appears How to repair a hard disk or floppy disk Open the Disk First Aid iconClick 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 Installing or reinstalling system software When should you install system software?When should you reinstall system software? Installing system software Open the Apple HD SC Setup programFind 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 the Install New System Folder button and click OK Hold down Shift-x-K to start the clean installationFollowing dialog box appears Click Continue 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 computer case Cleaning your equipmentCleaning the monitor Cleaning the mouse 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 Installing a processor-direct slot PDS card Remove the plastic access cover from the vertical plateAlign the card over the processor-direct slot Communication slot is the rightmost slot on the logic board Installing a communication cardRemove 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 Special keys on Apple keyboards Arrow keys Caps Lock key Clear key Command key Control key Power key Return keyDelete key Enter key Index Index Index Index Index Index Index Apple Publishing System