Use
this
procedure
to
isolate
tape
unit
power
problems.
Read
the
before
continuing
with
this
procedure.
1.
If
the
system
has
logical
partitions,
perform
this
procedure
from
the
logical
partition
that
reported
the
problem.
To
determine
if
the
system
has
logical
partitions,
go
to
before
continuing
with
this
procedure.
2.
Is
the
tape
unit
in
an
external
enclosure,
and
does
the
tape
unit
enclosure
have
a
power
switch?
v
Yes
:
Is
the
tape
unit
powered
on?
–
Yes
:
Continue
with
the
next
step.
–
No
:
Go
to
step
8
(See
page
v
No
:
Go
to
This
ends
the
procedure.
3.
Press
the
Unload
switch
on
the
front
of
the
tape
unit.
Is
a
data
cartridge
or
a
tape
reel
present?
v
Yes
:
Attempt
to
remove
the
data
cartridge
or
tape
reel
from
the
tape
unit.
Can
you
remove
the
data
cartridge
or
tape
reel?
–
Yes
:
Continue
with
the
next
step.
–
No
:
The
tape
unit
is
the
failing
part.
Go
to
Note:
If
the
tape
unit
is
an
8mm
tape
drive,
go
to
first.
This
ends
the
procedure.
v
No
:
Continue
with
the
next
step.
4.
Is
the
tape
unit
installed
in
an
FC
5032
removable
storage
unit?
v
No
:
Are
you
working
on
an
8mm
tape
drive?
–
Yes
:
Continue
with
the
next
step.
–
No
:
Go
to
step
6
(See
page
v
Yes
:
Go
to
Tape
Unit
PIP
5
in
the
manual
on
the
V5R1
Supplemental
Manuals
web
site
.
This
ends
the
procedure.
5.
Is
the
system
powered
on?
v
Yes
:
Continue
with
the
next
step.
v
No
:
The
8mm
tape
drive
cannot
operate
if
the
system
is
powered
off
and
the
external
I/O
signal
cable
is
connected.
Perform
the
following:
a.
Disconnect
the
external
I/O
signal
cable
from
the
8mm
tape
drive.
b.
Continue
with
the
next
step.
6.
Is
the
tape
unit
Power
light
on?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Perform
the
following:
a.
Ensure
that
the
power
cable
connects
tightly
to
the
power
cable
connector
at
the
back
of
the
tape
unit.
b.
Ensure
that
the
power
cable
connects
to
a
power
outlet
that
has
the
correct
voltage.
c.
Go
to
step
8
(See
page
7.
Set
the
tape
unit
Power
switch
to
the
Power
Off
position
(see
Table
1.
Power
off
and
power
on
positions
of
tape
unit
power
switches
(See
page
in
this
topic).
Note:
Determine
if
the
system
has
logical
partitions.
Go
to
before
continuing
with
this
procedure.
Analyze
hardware
problems
225