Apple twentieth anniversary mac 서비스 매뉴얼

5

If your computer still doesn’t restart, press the power button on the back of the computer to turn it off,
wait at least 10 seconds, and turn it on again by pressing the Power key (π) on the keyboard.

If you suspect that the problem is with other equipment, such as a printer or an external hard disk
that’s attached to your computer, shut down the computer, turn off the other equipment for
10 seconds or longer, then turn it on again and restart your computer.

Step 3: 

Check onscreen help, if you can

Mac OS Guide contains some troubleshooting information that is not included in this user’s manual. 
If you are able to start up your computer properly, choose Mac OS Guide from the Guide (h) menu;
click the Guide’s Topics button, and choose Troubleshooting from the list.

Step 4: 

Go to the next chapter, “Solutions to Common Problems”

If none of the tips here help, you can probably find a solution for your particular problem in the next
chapter, “Solutions to Common Problems.”

If you suspect the problem may be with a program not published by Apple, contact the program’s
publisher.

Step 5: 

Use Apple System Profiler

Apple System Profiler is a small program, called a 

utility, that lets you quickly view different types of

information about your computer to help you and the Apple Assistance Center solve problems with
your computer.

Opening Apple System Profiler

If you are able to start up your computer properly, choose Apple System Profiler from the Apple (K)
menu to open the utility.

When you open Apple System Profiler, a System Overview window appears.

Chapter 

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