Apple 190 User Manual
Macintosh PowerBook
User’s Guide
Includes setup, troubleshooting, and important health-related
information for Macintosh PowerBook 190 series computers
K Apple Computer, Inc.
© 1995 Apple Computer, Inc. All rights reserved.
Under the copyright laws, this manual may not be copied, in whole or in part, without the
written consent of Apple. Your rights to the software are governed by the accompanying
software license agreement.
The Apple logo is a trademark of Apple Computer, Inc., registered in the U.S. and other
countries. Use of the “keyboard” Apple logo (Option-Shift-K) for commercial purposes without
the prior written consent of Apple may constitute trademark infringement and unfair
competition in violation of federal and state laws.
Every effort has been made to ensure that the information in this manual is accurate. Apple is
not responsible for printing or clerical errors.
Apple Computer, Inc.
1 Infinite Loop
Cupertino, CA 95014-2084
(408) 996-1010
Apple, the Apple logo, AppleLink, AppleShare, AppleTalk, LaserWriter, Macintosh,
PowerBook, and StyleWriter are trademarks of Apple Computer, Inc., registered in the U.S. and
other countries.
Apple Desktop Bus, Balloon Help, Disk First Aid, eWorld, Finder, and Mac are trademarks of
Apple Computer, Inc.
Adobe, Adobe Illustrator, Adobe Photoshop, and PostScript are trademarks of Adobe Systems
Incorporated, which may be registered in certain jurisdictions.
Linotype and Times are registered trademarks of Linotype-Hell AG.
PowerPC and the PowerPC logo are trademarks of International Business Machines
Corporation, used under license therefrom.
SuperPaint is a registered trademark of Aldus Corporation, a subsidiary of Adobe Systems
Incorporated, which may be registered in certain jurisdictions.
Simultaneously published in the United States and Canada.
Mention of third-party products is for informational purposes only and constitutes neither an
endorsement nor a recommendation. Apple assumes no responsibility with regard to the
performance or use of these products.
Con tents
Communications regulation infor mation vi
Part I
1Getting Started 1
Plugging in the computer 3
Opening the display 4
Tur ning the computer on 6
Problems turning your computer on? 8
Making software disks 9
What’s next? 15
Learning the basics 16
Revi ew ing the basi cs 18
Tur ning the computer off 19
Putting the computer to sleep 20
Restarting a computer that’s already on 22
Where to find answers 24
iii
2Getting Help 25
Getting answers to your questions 26
Identifying objects on the screen 34
Learning useful shortcuts 35
3Using Expansion Bay Mo dules and PC Cards 37
Usi ng e x pa nsion bay modules 37
Usi ng PC Cards (PCMCIA cards) 41
4Connecting Additional Equipment 51
Connecting a printer 52
Connecting an external modem 53
Connecting SCSI devices 54
Connecting an external monitor 60
Connecting sound output devices 64
Connecting other devices 65
Adding infrared (IR) capabilities to your computer 65
Adding memory to your computer 65
5Installing and Using Application Programs 67
Usi ng S oftware Highlights 67
Getting help for application programs 69
Installi ng application programs 69
Working with several programs at a time 70
Backing up your files 71
6Power Management 73
Power sources 73
Monitoring the battery charge 73
Recharging the battery 76
Removing or replacing the battery 77
Maximizing work time 78
About lithium ion replacement batteries 79
iv
Contents
Part II
7Tips and Troubleshooting 83
When you have questions 83
When you run into trouble 83
Problems starting up the computer 84
Problems worki ng with programs 89
Other problems while working 93
Problems with hardware 96
Problems with equipment connected to your Macintosh PowerBook 105
Problems with networks and file sharing 106
Problems with Apple Remote Access 109
8Diagnostic Techniques 111
Checking your system software extensions 111
Testing your hard disk 113
Reinstalli ng system software 115
Part III
Appendix A Health, Safety, and Maintenance Tips 127
Health-related information about computer use 127
Important care and safety instructions 134
Caring for batteries 136
Handling floppy disks 137
Traveling with the Macintosh PowerBook 138
Storing the Macintosh PowerBook 139
International use 140
Service and support 140
Contents
v
Appe n dix B Using Your Keyboard 141
Typi ng s p ecial chara cter s and symbols 143
Special key combinations 145
Appendix C Installing a RAM Expansion Card 147
Getting ready 148
Removing the keyboard 149
Installi ng the RAM expansion card 158
Replacing the keyboard 161
Checking to make sure a RAM card is properly installed 166
Index 167
vi
Contents
Communications regulation information
FCC statement
This equipment has been tested and found to comply with the limits for a Class B digital device
in accordance with the specifications in Part 15 of FCC rules. See instructions if interference to
radio or television reception is suspected.
Radio and television interference
The equipment described in this manual generates, uses, and can radiate radio-frequency
energy. If it is not installed and used properly—that is, in strict accordance with Apple’s
instructions—it may cause interference with radio and television reception.
This equipment has been tested and found to comply with the limits for a Class B digital device
in accordance with the specifications in Part 15 of FCC rules. These specifications are designed
to provide reasonable protection against such interference in a residential installation. However,
there is no guarantee that interference will not occur in a particular installation.
You can determine whether your computer system is causing interference by turning it off. If
the interference stops, it was probably caused by the computer or one of the peripheral devices.
If your computer system does cause interference to radio or television reception, try to correct
the interference by using one or more of the following measures:
m Turn the television or radio antenna until the interference stops.
m Move the computer to one side or the other of the television or radio.
m Move the computer farther away from the television or radio.
m Plug the computer into an outlet that is on a different circuit from the television or radio.
(That is, make certain the computer and the television or radio are on circuits controlled by
different circuit breakers or fuses.)
If necessary, consult an Apple-authorized service provider or Apple. See the service and support
information that came with your Apple product. Or, consult an experienced radio/television
technician for additional suggestions. You may find the following booklet helpful:
Handbook (stock number 004-000-00493-1). This booklet, prepared by the Federal
Communications Commission, is available from the U.S. Government Printing Office,
Washington, DC 20402.
IMPORTANT
could void the FCC certification and negate your authority to operate the product.
This product was tested for FCC compliance under conditions that included the use of Apple
peripheral devices and Apple shielded cables and connectors between system components. It is
important that you use Apple peripheral devices and shielded cables and connectors between
system components to reduce the possibility of causing interference to radios, television sets,
and other electronic devices. You can obtain Apple peripheral devices and the proper shielded
cables and connectors through an Apple-authorized dealer. For non-Apple peripheral devices,
contact the manufacturer or dealer for assistance.
Changes or modifications to this product not authorized by Apple Computer, Inc.,
Interference
Communications Regulation Information
vii
DOC statement
DOC Class B Compliance This digital apparatus does not exceed the Class B limits for radio
noise emissions from digital apparatus as set out in the interference-causing equipment standard
entitled “Digital Apparatus,” ICES-003 of the Department of Communications.
Observation des normes—Classe B Cet appareil numérique respecte les limites de bruits
radioélectriques applicables aux appareils numériques de Classe B prescrites dans la norme
sur le matériel brouilleur : “Appareils Numériques”, NMB-003 édictée par le ministre des
Communications.
VCCI statement
viii
Communications Regulation Information
Chapter 1 Get ting S tar ted
Chapter 2 Getting H e lp
Chapter 3 Using Expansion Bay Modules and PC Cards
Chapter 4 Connecting Additional Equipment
Chapter 5 Installing and Using App lication Programs
Chapter 6 Power Management
part
I
Follow the instructions in this
chapter to set up your computer
and learn the basics.
1
Getting Started
The illustration on the following page provides an overview of your
Macintosh PowerBook computer. To set up your computer for the first time,
you need the power adapter and the power cord that came with it.
When setting up your computer, place your computer on a sturdy, flat surface
near a grounded electrical outlet. Before following the setup instructions in
this chapter, you may want to read “Ar ra nging Your Work Area and
Equipment” in Appendix A for tips on adjusting your work furniture and
computer so that you’re com fortable when using the computer.
1
Sleep indicator
Speaker
Trackpad
Trackpad button
¤
Brightness control
O
Contrast control
Microphone
Power key
P
Floppy disk drive
module
Expansion bay drive
in-use light
Security slot
Battery
Infrared window
(optional Infrared
Upgrade Card
required for IR
file transfer)
™
Video port
(optional 8-bit
Video-Out Upgrade
Card, shown
installed here)
Reset button
I
-
Sound output port
g
SCSI port (HDI-30)
´
Printer/External modem port
Two PC Card
(PCMCIA card) slots
PC Card eject buttons
Elevation foot
release button
¯
Power adapter port
Elevation feet
V
Apple Desktop Bus (ADB) port
Pluggin g in the computer
Plugging in the power adapter recharges the computer’s battery. You should
plug in the power adapter in case the battery has drained during shipping
or storage.
WARNING
Use only the power adapter that came with your Macintosh
PowerBook or with a Macintosh PowerBook 5300 series computer.
Adapters for other electronic devices (including other Maci ntosh
PowerBook models and other portable computers) may look similar, but
they may damage your computer.
When you are ready to b egin, follow these steps:
1Plug one end of the power cord into the power adapter and the other end into a
three-hole grounded outlet or power strip.
WARNING
This equipment is intended to be electrically grounded. The
power adapter that came with your Maci ntosh PowerBook is equipped
with a three-wire grounding plug—a plug that has a third (grounding)
pin. This plug will fit only a grounded AC outlet. This is a safety
feature. If you are unable to insert the plug into the outlet, contact a
licensed electrician to replace the outlet with a properly grounded
outlet. Do not defeat the purpose of the grounding plug!
Getting Started
3
2Plug the power adapter plug into the power adapter port (marked with the icon
Slide the latch to the left to open the display.
Power cord
Power adapter
Power adapter plug
¯
Power adapter port
back panel of the computer.
Opening the display
1Slide the latch to the left and lift up the display.
¯
) on the
4
Chapter 1
2Position the display at a comfortable viewing angle.
To lower the foot, lift the rear of the
computer and press the release button.
The foot extends automatically.
To raise the foot, press the release
button while pushing up on the foot
until it clicks into place.
You can adjust the angle of the display at any time by tilting it toward or away
from you.
3Adjust the elevation feet if you want to raise the computer.
The back of the keyboard is slightly elevated when the feet are in use.
Getting Started
5
Turning the computer on
π
Power key
To tu r n on the computer:
m
Press the Power key (marked with a
You should hear a tone when you turn on the computer. It takes the computer
a few minutes to start up. You’ll see the Mac OS startup screen as the system
software is loaded on the computer.
After your computer starts up for the first time, a picture similar to this
appears on the screen:
P
) at the upper-right corner of the keyboard.
6
If you don’t see this picture on your screen, go to the next section, “Problems
Turning Your Computer On?”
Chapter 1
If you are a new Macintosh PowerBook user, follow the instr uctions in the
rest of this section. If you have experience using a Macintosh computer, skip
to “Making Software Disks” later in this chapter to learn how to make floppy
disks of the software installed on your computer.
If you are a new Macintosh PowerBook user
If you have never used a Macintosh PowerBook computer, you need to learn
how to use your computer before you can make your disks. Follow these
steps:
1Move your finger on the trackpad to move the arrow pointer (
8
) on the screen.
Place your index finger on the trackpad and your thumb on the trackpad
button. Don’t press the trackpad button yet.
2Move your finger on the trackpad so that the tip of the arrow (
at the bottom of the Floppy Disk Maker box.
3 Being careful not to move your finger on the trackpad, press and release the trackpad
button.
8
) is inside the Quit button
The following screen replaces the Floppy Disk Maker box.
Note: Your screen should look very similar to this, but it may not look exactly
the same.
Getting Started
7
4 Turn to the “Learning the Basics” section later in this chapter.
O
Contrast control
¤
Brightness control
5 Turn to “Making Software Disks,” later in this chapter, as soon as you are done learning
the basics.
It is very important that you make your floppy disks as soon as you are done
with the first part of the Macintosh Tutorial.
Prob lems tu rning your computer on?
m
Nothing happened when you pressed the Power key.
The battery may be drained. Make sure you plugged in the power adapter,
and that 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 a nd turned on. Then try pressing the
key again.
If the computer still doesn’t turn on, see “Problems Starting Up the
Computer” in Chapter 7.
The computer made a sound, but you can’t see anything on the screen.
m
Adjust t he brightness control (marked with the icon ¤) and contrast
control (O) until an image appears and the screen is easy to read.
8
Chapter 1
m
You see a picture of a disk with a blinking question mark on the screen.
This icon usually means that the computer can’t find system software on
the hard disk or any disks attached to the computer. You may need to
reinstall system software. See “Reinstalling System Software” in Chapter 8.
You don’t see the Floppy Disk Maker picture on the screen.
m
The screen for Floppy Disk Maker appears when you start up your
computer until you make a minimum set of disks. If you haven’t made a
minimum set of disks, see the next section, “Making Software Disks.”
(Note: The screen that appears for Floppy Disk Maker may be slightly
different from the screen shown in this manual.)
Making software disks
This section describes how to create floppy disks of the software that comes
on your computer.
Why ma ke software disks?
Your Macintosh PowerBook computer comes with different kinds of software
installed. System software is the se t of programs and other files that your
computer uses to start itself up, keep track of your files, and run application
programs. When you turn on your computer, it looks for a disk that contains
the system software. System software is always in a folder called th e System
Folder.
Other included software gives you added functionality on your computer,
such as file synchronization, hard disk password protection, and DOS–Mac
OS file compatibility.
You need to make a copy of this software for safekeeping, in case you ever
need to reinstall the software on your computer. Th e disks you need to install
and reinstall software from are called installer disks. You use the Floppy Disk
Maker application program to create your software installer disks.
Getting Started
9
What is a dis k ima ge?
High-density disks
have two holes...
...and they have
this symbol.
A disk image is a discrete electronic representation of each individual installer
disk. Th e Disk Images folder in the Floppy Disk Maker folder on your hard
disk contains the disk images you need to creater installer disks for both your
system software a nd the other software that comes on the hard disk. When
you use Floppy Disk Maker, it copies the disk images onto floppy disks. When
you are finished making a set of disks with Floppy Disk Maker, you’ll have a
set of installer disks and will be able to reinstall the software that comes on
your computer.
Note: You must use the Floppy Disk Maker program to create your installer
disks. (Although you can copy the disk images onto floppy disks by dragging
the files, you won’t be able to i nstall the software from those disks because
the disk images are compressed files.)
What you need
Just as you n eed paper to make copies of important documents, you need
floppy disks to make copies of the information on your hard disk. You can
probably buy the floppy disks at the same place you bought your computer.
Floppy disks come in a variety of sizes and capacities. The ones you need for
backing up your hard disk are called high-density 3.5-inch disks. You can
recognize the disks by the way they look:
10
Even though these disks have a hard plastic casing, they are called “floppy
disks” because the disk inside the casing is floppy.
Chapter 1
Before you start making your disks, you’ll need to decide if you want to make
a full set or a minimum set of disks. When you make a full set, you’ll make
disks for your system software and the other disk images that come on your
computer. When you make a minimum set, you’ll make just the essential
system software disks. It is best to make a full set, so you’ll have i nstaller
disks for your system software and the other disk images that come on your
computer. However, making a full set requires more disks and more time than
making a minimum set. At the very least, make a minimum set of disks now.
If you choose to make a minimum set, you can make disks for the other
software later.
If you don’t have disks on hand, you can skip these instr uctions for the
moment. But the sooner you make the system software disks, the better. Buy
the disks as soon as possible, then return to this section and follow these
instructions.
IMPORTANT
Be sure you make at least a minimum set of disks as soon as
possible, in case you need to reinstall your system software.
Making a set of disks
To use the Floppy Disk Maker program to make your installer disks, follow
these inst ruction s :
1If your computer is off, turn it on.
Before you can begin, the following dialog box should be on your screen:
Getting Started
11
This dialog box will appear every time you start your computer until you
Insert the disk metal end first, label side up.
make at least a minimum set of disks. It is very important that you make at
least a minimum set. (You can stop the dialog box from appearing by
removing the Floppy Disk Maker alias from the Startup Items folder in the
Syst em Fold er. See “Problems Starting Up the Computer” in Chapter 7 for
more information.)
If you clicked the Quit button in the Floppy Disk Maker dialog box, you can
find Floppy Disk Maker in either the Applications/Utilities section of
Software H ighlights or in the Floppy Disk Maker folder (inside the Utilities
folder) on your hard disk. (See “Using Software Highlights” in Chapter 5 for
more information.)
2Click Minimum Set or Full Set, depending on the kind of disk set you want to make.
If you are making a minimum set, you ca n press the Return key. You can
make a minimum set first so you have a set of system software disks, and then
use Floppy Disk Maker to make the other disks later. (See “Making Individual
Disks” later in this section for instructions wh en you want to make the
additional disks.)
If you need to stop Floppy Disk Maker in the middle of making a set of disks,
click Quit. Floppy Disk Maker will remember where you were in the diskmaking process, and will resume where you left off when you next open
Floppy Disk Maker.
3 Follow the instructions on the screen until a message tells you that you’re finished.
Insert a new disk whenever the screen messages tell you to do so. Do not use
the Disk Tools floppy disk that came with your computer.
12
Chapter 1
As you fill each disk, make a label with the disk name displayed on the
screen. Then immediately put the label on the disk so that you know what its
contents are later.
4When you’re finished, click Quit.
If you want to make more disks, click Continue a nd go to the next section,
“Making Individual Disks,” to learn about using Floppy Disk Maker’s custom
feature.
Be sure the floppy disks are properly labeled, then store them in a safe, cool
place.
5If you quit in the middle of the disk-making process and want to resume copying, click
Resume Minimum or Resume Full (depending on the type of set you are making) when
you see the Floppy Disk Maker box.
Once you’ve made a full set of disks, you can delete the disk images to free up
space on your hard disk. However, keeping copies of at least the system
software images is a good idea. You should keep these disk images on your
hard disk, or backed up on an external hard disk or PC Card (PCMCIA card).
The disk images are found in a folder called Disk Images, inside the Floppy
Disk Maker folder.
Getting Started
13
Making individual disks
If you made a minimum set of disks, you can go back and make disks of the
remaining disk images on your computer. You do this by using the custom
feature of Floppy Disk Maker. You can make an individual disk or a set of
disks for an application program. Follow these steps:
1 Open the Floppy Disk Maker application program.
You can find Floppy Disk Maker in either the Applications/Utilities section of
Software H ighlights or in the Floppy Disk Maker folder (inside the Utilities
folder) on your hard disk. (See “Using Software Highlights” in Chapter 5 for
more information.)
2When the Floppy Disk Maker dialog box appears, click Custom.
The following appears on the screen:
Folders containing
disk images of
software that comes
on your computer are
listed here. Click the
folder you want to
copy, then click Add.
3Click the icon for the program you want to copy to select it.
Once you add the
folders you want to
copy, they appear
here.
If you want to make an individual disk for a program (in case you lost a disk
or an individual disk got damaged), double-click the program’s folder to open
it, then click the icon of the individual disk image to select it.
14
Chapter 1
What’s next?
4Click Add.
The folder (or individual disk) appears in the list to the right under “Disk
images to be copied.”
Repeat steps 3 and 4 until all the software you want to copy app ears in the list
to the right. The total number of disks you’ll need appears above the list in
the right of the window.
If you want to remove an item from the list on the right, click the item to
select it and click Remove.
5Click Copy.
Foll ow the instructions on the screen. Remember to lab el the disks as you
make them.
Yo u’ve now finished setting up your Macintosh PowerBook. Continue with
one of the following steps:
m If you are new to the Macintosh, turn to the next section, “Learning the
Basics.”
m If you are an experienced Macintosh user, turn to Chapter 2, “Getting
Help,” to learn about Macintosh Guide, your main source of information
when you’re working with the Macintosh computer.
m If you have additional equipment to connect to your computer, see
Chapter 4, “Connecting Additional Equipment,” for instructions. (If you
are a new Macintosh user, you should complete “Learning the Basics”
before connecting additional equipment.)
m If you have application programs that you want to install on your computer,
see Chapter 5, “Installing and Using Application Programs,” for
instructions. (If you are a new Macintosh user, you should complete
“Learning the Basics” before installing application programs.)
IMPORTANT
If you need to turn off your computer at any point, read the
instructions in “Tur ning the Computer Off” later in this chapter to learn the
correct procedure for turning off your Macintosh PowerBook computer.
Getting Started
15
Learning the basics
Trackpad Trackpad button
If you are new to the Macintosh, you should begin by looking at the easy-touse p r ogram called the Macintosh Tutorial. The tutorial teach es you the basic
skills you’ll need to use your computer. To start the tutorial, follow these
steps:
1Move your finger on the trackpad to move the arrow pointer (
8
) on the screen.
Place your index finger on the trackpad and your thumb on the trackpad
button. Don’t press the trackpad button yet.
Move your finger across the trackpad, watching the arrow on the screen.
Notice that the arrow on the screen moves in the same direction that you
move your finger on the trackpad.
16
Chapter 1
The trackpad is sensitive not only to the direction you move your finger, but
also to how fast you move your finger. If you want the pointer to move a short
distance across the screen, you move your finger slowly across the trackpad.
The faster you move your finger, the farther the pointer moves on the screen.
Tips for using the trackpad
For best results when using the trackpad:
m Use your index finger (left or right hand). Use only one finger.
m Use only your finger on the trackpad. Do not use a pen or any
other object.
m If your finger reaches th e edge of the trackpad before the pointer is
where you want it, lift your finger and reposition it on th e trackpad.
(The pointer moves only when your finger moves on the trackpad.)
m Extend your PowerBook’s elevation feet wh en it is placed on a flat
surface. This gives your fingers b etter access to the keyboard and
makes it easier to use the trackpad.
m Sometimes humidity or condensation may cause moisture to gather
on the trackpad. If this happens, gently wipe the trackpad with a
clean cloth before you use it.
2Move your finger on the trackpad so that the tip of the arrow (
mark in the upper-right portion of the screen.
3With the tip of the arrow (
button.
8
) on the question mark, press and hold down the trackpad
8
) points to the question
A list of choices (called a menu) appears. This is the Guide menu, which is
the place to go when you have a question about how to use your computer.
4While holding down the trackpad button, move the arrow (
Tutorial” are highlighted, then release the trackpad button.
8
) until the words “Macintosh
A window appears welcoming you to the tutorial. You can set aside this book
for now and follow the instructions you see on the screen. When you have
completed the tutorial, return to this book.
Getting Started
17
Reviewing the basics
The following illustration summarizes many of the basic skills and terms you
learned from the tutorial.
The strip across the
top of the screen is
called the menu bar.
The symbols and
words in it represent
menus of commands.
Icons are small pictures
that represent disks,
folders, programs, and
documents. To open
an icon, double-click it
(that is, click it
twice quickly).
Windows are boxes
that display text,
graphics, or icons. To
bring a partially
covered window to the
front, click anywhere
in the window.
You can have several application
programs open at once. To see which
To find an answer to
To move a window,
drag it by the title bar.
To close a window,
click the close box.
The Control Strip gives you a quick and easy way to monitor
and update your PowerBook’s power management options. For
instructions on using the Control Strip, see the “Batteries & Power”
topic of Macintosh Guide, available in the Guide (
a question, look in the
Guide (
To bring hidden portions of a
window’s contents into view,
click the scroll arrows.
) menu.
h
)menu.
h
program is active or to switch from
one program to another, use this
menu (called the Application menu).
This icon represents the
startup hard disk (usually the
computer’s internal hard disk)
To change the size or shape of
a window, drag the size box.
To throw away an item you
no longer want, drag it to the
Trash and choose Empty
Trash from the Special menu.
18
Chapter 1
Turning the computer off
You can turn your computer off using either the Power key or the Shut Down
command. Detailed instructions follow.
Turning the computer off using the Power key
To tu r n the computer off with the Power key, follow these steps:
1If the computer is in sleep, press any key on the keyboard (except Caps Lock) to wake it.
For information on the sleep feature of your Macintosh PowerBook, see
“Putting the Computer to Sleep,” the next major section in this chapter.
2Press and hold the Power key for about two seconds.
The following dialog box appears on the screen:
3Press the Return key on the keyboard (or click the Shut Down button in the dialog box).
Turning the computer off using the Shut Down command
You can also turn your computer off by using the Shut Down command in the
Special menu. Follow these steps:
1If the computer is in sleep, press any key on the keyboard (except Caps Lock) to wake it.
2Move the tip of the arrow to the word “Special” at the top center of the screen.
If the word “Special” does not appear at the top of the screen, you’re working
in the wrong program. Choose Finder from the Application menu.
3With the tip of the arrow on the word Special, press and hold down the trackpad button.
Getting Started
19
4While holding down the trackpad button, move the arrow down the list of choices until
the words “Shut Down” are highlighted, then release the button.
Trouble? If a problem with the computer prevents you from using the Power
key or choosing Shut Down —for example, if the computer “freezes” so that
the pointer does not respond to the trackpad—you ca n turn off the computer
by pressing the reset button (marked with an I) on the back of the computer.
Use this method only if you ca nnot click Shut Down or Restart in the dialog
box that appears when you press the Power key, or if you cannot choose either
command from the Special menu.
Putting the computer to sleep
Sleep is a power conservation feature of Macintosh PowerBook computers,
reducing the amount of power the computer draws when it’s not being used.
When the PowerBook is in sleep, it has a darkened screen and appears to be
off. A small green light flashes on the top of the display when your computer
is in sleep. (Note: The computer must be on in order for you to put it to
sleep.)
To put the computer to sleep, follow these steps:
1Press and hold the Power key for about two seconds.
2In the dialog box that appears, click the Sleep button.
WARNING
to stop spinning before you transport your Macintosh PowerBook.
Transpor ting your Macintosh PowerBook with the hard disk spinning
can damage your computer.
20
Chapter 1
Once you put your computer to sleep, listen for the hard disk
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