User`s guide
EMPTY
THE
DRIVE
First, it is very important to be sure nothing
is
inside the disk drive . If you tum the
power
off
or
oil with a diskette_
in
the drive, you could lose its contents and have to re-
record
it
. Since you wouldn't like having to do that, always check to be sure nothing
is
inside the drive before turning
it
off
or
on.
When you first unpack the disk drive, you will find a cardboard shipping spacer
inside.
Following the instructions below, pull
it
out as though
it
were a diskette, but
don't
throw
it
away. You will want to put
it
back inside the slot any time you move
or
hip the
disk drive later.
To check whether the drive
is
empty (Fig.
1),
simply rotate the lever on the front
of
the disk drive counter-clockwise until
it
stops,
one-quart~r
tum
at
most. Then reach
inside the long slot the lever covers when it points down, and pull out any diskette you
f"md
there.
CONNECTING THE CABLES
With the power supply, the power cable plugs into the back
of
the disk drive
at
one
end, and into a grounded (3-prong) outlet at the other end .It will only
go
in
one way. Before
you plug
1t
in
though, make sure that your entire computer system
is
turned off. The disk
drive's on/
off
switch
is
in
the back, on the right side (when viewed from the back).
It
is
~ff
when the
botton
~alf
is
pushed inward. Leave your whole system
off
until everything
is
connected.
We
will tell you when it is safe
to
tum
it
on.
Fig
2.
Back
Panel
DIP SWITCH
FOR
CHANGING
DEVICE
NUMBER
SERIAL
INTERFACE
DEVICE
SERIAL
PORT
CONNECTORS
FOR
INTERFACE CABLES
0
6
POWER
OFF 0
POWER SWITCH
ON/ OFF
POWER CORO SOCKET
After plugging the power supply into the disk drive and a suitable outlet, find the black
cable that goes from the disk drive to the computer.
lt
is
called a serial bus cable to
describe the way the computer, and other accessories communicate with each other
through its wires . It has an identical 6-pin
DIN connector at each end, which like the
power connector can only go
in
one
way-with
the dimple
in
the side
of
the plug facing
up
.
To plug
in
the serial bus cable, find the dimple on the side
of
the metal part
of
the
plug and tum that side up. Then push it straight into one
of
the two serial bus connectors
on the back
of
the disk drive. The other
end
goes into the similar connector on the back
of
your compuU:r, marked
"serial
bus."
lf
another accessory, such as a printer,
is
already
connected there, unplug the other
device's
cable from the computer, and attach it to the
spare serial bus connector on the back
of
the
1541
. Then install the serial cable from the
1541
in the serial bus connector on the back
of
the computer (Fig
3.A.)
If
you have more than one disk drive, each added disk
drive's
serial bus cable
is
plugged into the second serial bus connector on the back
of
the previous disk drive, like a
daisy chain (Fig 3.B). However,
don't
connect the other(s) until
you've
learned how to
change their device numbers, as no two disk drives can have the same device number.
We'll cover ways
of
changing disk device numbers
in
Appendix A. Until you are ready to
read that section, you may find it easier
to
leave your extra drive(s) unconnected.
TURNING ON THE POWER
With everything hooked up, and the disk drive empty,
it
is
time to
tum
on the power.
You can
tum
on the power to the disk and other devices on the serial bus (connected via
serial cables) in any order you like. Just be sure to either
tum
on the power to the computer
itself last,
or
to. use a multiple outlet power box with a master switch to tum everything
off
and on at once. When everything
is
on,
including the computer, the disk drive will go
through a self check for a second
or
so, to be sure
it
is working correctly. After the drive
is
satisfied with its own health, it will flash the green light once, and the red power-on light
will glow continuously.
At
the same time, the oomputer will be going through a similar
self-test, and displaying its hello message on your TV or video monitor.
Once the green
light on the disk drive has flashed and gone
out,
it is safe
to
begin working with the drive.
If
the light doesn't
go
out,
but
continues to flash, you may have a problem. Refer
to
the
troubleshooting guide for help.
7