c.
Power
on
the
system.
d.
If
a
reference
code
appears
on
the
control
panel,
go
to
step
10
(See
page
e.
If
no
reference
code
appears,
repeat
steps
a
through
d
of
this
step
until
you
have
checked
all
devices
disconnected
previously.
f.
Continue
to
perform
the
initial
program
load
(IPL).
This
ends
the
procedure.
10.
Ensure
that
the
following
conditions
are
met:
v
The
workstation
addresses
of
all
workstations
on
the
failing
port
must
be
correct.
Each
workstation
on
the
port
must
have
a
separate
address,
from
0
through
6.
See
the
workstation
service
information
if
you
need
help
with
checking
addresses.
Did
you
find
a
problem
with
any
of
the
above
conditions?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
step
12
(See
page
11.
Perform
the
following:
a.
Correct
the
problem.
b.
Select
function
21
Make
DST
Available
.
c.
Check
the
console
and
any
alternative
consoles
for
a
display.
Does
a
display
appear
on
any
of
the
consoles?
v
No
:
Does
the
same
reference
code
appear
on
the
control
panel?
–
Yes
:
Continue
with
the
next
step.
–
No
:
Go
to
for
this
new
problem.
This
ends
the
procedure.
v
Yes
:
Continue
to
perform
the
IPL.
This
ends
the
procedure.
12.
Is
the
reference
code
one
of
the
following?:
0001,
0003,
0004,
0005,
0006,
0101,
0103,
0104,
0105,
0106,
5004,
5082,
B000,
D010,
or
D023.
v
No
:
Continue
with
the
next
step.
v
Yes
:
Go
to
step
16
(See
page
13.
Does
the
system
have
an
alternative
console
on
a
second
workstation
IOP?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
step
15
(See
page
14.
There
is
either
a
Licensed
Internal
Code
problem,
or
there
are
two
device
failures
on
the
workstation
IOPs,
consoles,
or
cables.
The
console
and
any
alternative
consoles
are
the
most
probable
causes
for
this
failure.
v
See
the
service
information
for
the
failing
display
to
attempt
to
correct
the
problem.
If
a
display
is
connected
to
the
system
by
a
link
protocol
converter,
use
the
link
protocol
converter
information
to
attempt
to
correct
the
problem.
The
link
protocol
converter
may
be
the
failing
item.
v
If
you
have
another
working
display,
you
can
exchange
the
console
and
alternative
consoles
and
perform
an
IPL
to
attempt
to
correct
the
problem.
v
Exchange
the
following
parts
one
at
a
time
until
you
determine
the
failing
item:
a.
Console
b.
Alternative
console
c.
Cables
d.
Workstation
IOA
for
the
console
e.
The
multi-adapter
bridge.
See
symbolic
FRU
This
ends
the
procedure.
Analyze
hardware
problems
241
