Apple PowerBook (2400c) - Manual (Page 13)

Problems turning the 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 and turned on. If the computer doesn’t make
a sound when you press the Power key, press the reset button (marked with
I) on the back of the computer. Once the battery has charged you should
be able to use the Power key normally.
If the computer still doesn’t turn on, see “Problems Starting Up the
Computer” in Chapter 6.
m The computer made a sound, but you can’t see anything on the screen.
Adjust the brightness control until an image appears and the screen is easy
to read.
Press ¿ to increase brightness.
Press ÷ to decrease brightness.
12 Chapter 1