Battery recharging

A PowerBook Duo connected to the Duo MiniDock draws power from its battery unless the power adapter is plugged in. If the power adapter is plugged in, the battery recharges while the computer is connected to the minidock. (This is the same way the computer works if it is not docked.)

Power adapter

Always use the power adapter when you connect your PowerBook Duo to a Duo MiniDock supporting an external monitor, external SCSI equipment, a printer, and/or an external modem.

If your Duo MiniDock is supporting only a floppy disk drive, a keyboard, and/or a mouse, you can work without the power adapter if you prefer. However, the battery will discharge faster than it does when the PowerBook is not connected to the minidock.

Power conservation

If you are using an external monitor, the PowerBook will not sleep again until you disconnect it from the minidock.

If you are using only a floppy disk drive, a keyboard, and/or a mouse, the computer sleeps as usual.

Monitors

If an external monitor is connected to the Duo MiniDock, you can use it as an extension of your PowerBook Duo’s built-in screen— that is, you can drag objects from one screen to another and do your work on either one.

The PowerBook’s built-in screen is set to be the main monitor (the one on which the menu bar appears).

You can make an external monitor the main monitor by selecting it in the Monitors control panel. (See “Making Your External Monitor the Main Monitor,” earlier in this section.) The PowerBook’s built-in screen is the main monitor whenever the computer is not connected to the minidock.

A feature called video mirroring allows you to display the same Macintosh desktop on two screens at the same time. This feature is useful when you want to do a presentation: you can use the PowerBook screen to see and control what your audience views on a larger screen. Use the PowerBook Display control panel to turn video mirroring on or off.

248 Chapter 13: Building a PowerBook Duo System

Page 264
Image 264
Apple Duo 270C manual Battery recharging, Power adapter, Monitors