Turning the Lisa On and Off Simple! Just press the on-off button. The button is lit when the system is on. Pressing the on-off button tells the Lisa to prepare for working or to put your work away. After pressing the button, there's a slight delay as the system readies the Lisa to work for you or prepares to shut down. There's another reason for the delay when you turn on the Lisa. The system runs a series of internal tests to make sure the Lisa is ready to go to work. If you're interested, Appendix 4, Automatic Startup Tests, gives the details. If you encounter a problem during the startup procedures, refer to Section C, Troubleshooting.
Warning The Lisa on-off button is a "soft" switch; that is, it turns off the system but does not cut off the power supply. If you need to service the Lisa, be sure to unplug the system. Section A. Getting Ready -- LisaGuide A7