Apple PowerBook (Duo 270C) - Manual (Page 237)

Turning on the Powerbook Duo System
To turn on the docked computer, press the Power On key on your
external keyboard. On Apple keyboards, the key is marked with a
triangle pointing left.
Once the computer is on, you have access to all equipment
connected to the Duo Dock.
Trouble?
n
Nothing happens when you press the Power On key.
Review the setup instructions and make sure everything is
plugged in correctly. Then try pressing the Power On key
again. If you still get no results, press the power button on the
back of the dock.
n
You hear sounds that suggest the computer is working,
but you can’t see anything on the monitor.
Make sure the video cable is plugged in correctly.
Make sure the monitor is plugged in and make sure that its
power switch is on. Then adjust the brightness and contrast
controls as necessary.
Power button
Chapter 13: Building a PowerBook Duo System 221