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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 buttons and contrast control buttons (if your
computer has them) to adjust the screen. (Some models have brightness
control buttons only.)
m
Nothing happened when you pressed the Power On key.
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 the
Power On key again.
If you still get no results, press the power button on the back of the
computer.
If neither the Power On key nor the power button turns the computer on,
see Chapter 10, “Tips and Troubleshooting,” for help.
Power button
Brightness
Contrast
5
Setting Up Your PowerBook Duo