Apple IIgs - Manual (Page 52)

Page 52 of 84 II gs
Printed: Thursday, July 25, 2002 12:14:50 PM
You don't hear anything from your disk drive when you turn on the power.
The disk drive isn't plugged into the computer, or the Control Panel setting for Startup Slot
is wrong.
Turn off the computer's power and plug it in. If that's not the problem, check
the Control Panel slot settings.
The computer tries to start up by using the wrong disk drive.
Unless you've used the Control Panel Program to change the startup slot, the
computer will attempt to start up by using the disk in the disk drive connected to the
highest-numbered slot or corresponding port.
A 5.25-inch disk drive in the disk drive port corresponds to slot. A 3.5-inch disk drive in the
disk drive port corresponds to slot.
The program starts up but doesn't tell you what to do. All you see is a square bracket and
the cursor.
The program on the disk isn't self-starting. (You're most apt to run into this situation if
you're using programs written by friends, acquired at a users-group meeting, or downloaded from
a bulletin board.)
Type CATALOG and press Return. This should produce a list of what's on the disk.
You can use any of the programs with the letter A in front of them by typing RUN, the name of
the program, and then pressing Return. You can use some of the
programs with the letter B in front of them by typing BRUN, the name of the program, and then
pressing Return. (The letters A and B refer to file types.)
Nothing appears on your screen when you turn on the power.
The monitor's power switch is off, or the monitor isn't plugged into the computer or into a
power source, or the monitor's contrast needs adjusting.
Make sure the monitor is turned on and plugged into both the computer and a power source and
that the contrast is adjusted properly.
The computer doesn't recognize your UniDisk 3.5.
Your UniDisk 3.5 is connected to a disk drive controller card instead of to the disk drive port
and you're using the Fast system speed.
Connect your UniDisk 3.5 to the disk drive port or change System Speed in the Control Panel to
Normal.