Apple PowerBook (200 Series) - Manual (Page 47)

Quitting SCSI disk mode
1 Shut down the computer your PowerBook is connected to.
2 Turn the PowerBook off by holding down the Command ( x ) key and the Power On ( P )
key at the same time.
3 Turn off any other SCSI devices in the chain.
4 Disconnect the PowerBook from the adapter cable.
If you regularly plan to connect your PowerBook to the same computer, you
can leave the adapter cable attached to the SCSI chain or the other computer.
IMPORTANT Do not leave the adapter cable attached to the PowerBook. If you
do, the computer will behave as though it is still in SCSI disk mode when you
try to restart.
5 If necessary, disconnect the adapter cable from the other computer or its SCSI chain.
Your equipment is now ready for normal use. Make sure that the SCSI chain
is properly terminated.
39 Connecting Additional Equipment