Apple Macintosh PowerBook 1400 - 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 plug 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. Then try pressing the
key again.
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 (marked with the icon ¤) and contrast
control (O) until an image appears and the screen is easy to read.
O
Contrast control
¤
Brightness control
13 Getting Started