Apple PowerBook 520 Specifications Page 5

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Problems turning on your computer?
m
The computer made a sound, but you can’t see anything on the screen.
Use the brightness control (marked with the icon
¤
) and contrast control
(
O
) until an image appears and the screen is easy to read.
m
Nothing happened when you pressed the Power On key (marked with the icon
I
) .
Make sure the power adapter is firmly connected to both the computer and
a power source. If the power adapter is plugged into a power strip, make
sure the power strip is plugged in and turned on. Then try pressing
I
again.
m
You see a blinking question mark icon on the screen.
This icon means that you need to install system software on the computers
hard disk. System software includes the programs the computer uses to
start itself up. You received a set of system software disks in the box with
your computer. For instructions on installing system software, see
Appendix A.
What to do next
m
New Macintosh users:
If you have never used a Macintosh computer before,
go to Chapter 2 now to learn how to use your PowerBook. Then go to
Chapter 4 for important health and safety instructions. For help turning
your PowerBook off, or putting your PowerBook to sleep, come back to this
chapter once you have learned to use your PowerBook.
m
New PowerBook users:
If you have used other Macintosh computers but are
new to the PowerBook, read the rest of this chapter for instructions on
turning the PowerBook off and putting the PowerBook to sleep. Then go to
Chapter 2 to learn about using the trackpad and to Chapter 5 to learn about
using the Control Strip. Make sure you read Chapter 4 for important health
and safety instructions.
m
Experienced PowerBook users:
Go to Chapter 2 to learn about using the
trackpad, then skim this book for information about your new PowerBook.
Important health and safety instructions are in Chapter 4.
5
Setting Up Your PowerBook
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