Specifications

The battery can’t be recharged.
m There may be a loose connection. Take the battery out and put it back in
the computer, and make sure the power adapter is properly plugged in.
m If all connections are OK, then the battery is probably damaged or dead.
Obtain a replacement battery from your Apple-authorized dealer.
The computer goes to sleep too often.
m Open the PowerBook control panel and move the battery conservation
slider toward Better Performance or choose Better Performance in the
Power Settings module of the Control Strip.
The computer doesn’t go to sleep automatically.
m You may have selected “never” on the System Sleep slider in the Custom
section of the PowerBook control panel. Drag the slider to a lower setting.
m You may be connected to a shared disk on the network.
m The serial port may be in use by a telecommunications program or a
printer.
m One or more applications may be doing work in the background. You can
choose Sleep from the Special menu to override them.
m The computer does not go to sleep if AppleTalk is active and the power
supply is plugged in. Turn AppleTalk off in the AppleTalk Switch module
in the Control Strip.
See Chapter 6 for more information about batteries and power consumption.
The screen
The screen is too dark.
m When you first turn on your computer, it may take several minutes for the
screen brightness to “warm up,” especially if you’ve chosen a high setting.
m The screen brightness or contrast may not be optimal for the surrounding
lighting. Adjust the brightness (
¤
) or contrast (
O
) setting.
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Tips and Troubleshooting