a.
Power
off
the
frame
that
you
are
working
on,
by
removing
the
line
cords
at
the
FC
5078,
FC
0578,
FC
5088,
and
FC
0588
power
supplies.
b.
Remove
and
label
all
cards
installed
in
the
PCI
backplane
area.
c.
Reconnect
the
ac
power
cable
to
the
unit.
d.
Power
on
the
frame
by
reconnecting
the
ac
power
cables
to
the
unit
that
you
are
working
on.
Did
a
power
reference
code
occur?
v
Yes:
Continue
with
the
next
step.
v
No:
Go
to
step
8
(See
page
3.
Is
the
SRC
1xxx
2603?
v
No:
Continue
with
the
next
step.
v
Yes:
Replace
the
PCI
backplane
(see
symbolic
FRU
This
ends
the
procedure.
4.
Perform
the
following:
a.
Power
off
the
frame
that
you
are
working
on,
by
removing
the
line
cords
at
the
FC
5078,
FC
0578,
FC
5088,
and
FC
0588
power
supplies.
b.
Remove
power
supply
P01.
c.
Remove
the
B01
assembly
from
the
original
power
supply
and
install
it
on
the
new
power
supply.
d.
Install
the
new
power
supply
P01.
e.
Power
on
the
system.
Does
a
power
reference
code
occur?
v
Yes:
Continue
with
the
next
step.
v
No:
The
power
supply
P01
that
you
removed
in
this
step
is
the
failing
item.
This
ends
the
procedure.
5.
Perform
the
following:
a.
Power
off
the
frame
that
you
are
working
on,
by
removing
the
line
cords
at
the
FC
5078,
FC
0578,
FC
5088,
and
FC
0588
power
supplies.
b.
Remove
the
new
power
supply
P01
and
replace
it
with
the
original
power
supply
P01,
after
switching
the
B01
assembly
back
to
the
original
power
supply.
c.
Remove
power
supply
P02.
d.
Remove
the
B02
assembly
from
the
original
power
supply
P02
and
install
it
on
the
new
power
supply.
e.
Install
the
new
power
supply
P02.
f.
Power
on
the
frame
by
reconnecting
the
ac
power
cables
to
the
unit
that
you
are
working
on.
Does
a
power
reference
code
occur?
v
Yes:
Continue
with
the
next
step.
v
No:
The
power
supply
P02
that
you
removed
in
this
step
is
the
failing
item.
This
ends
the
procedure.
6.
Perform
the
following:
a.
Power
off
the
frame
that
you
are
working
on,
by
removing
the
line
cords
at
the
FC
5078,
FC
0578,
FC
5088,
and
FC
0588
power
supplies.
b.
Remove
the
new
power
supply
P02
and
remove
the
B02
assembly.
Replace
it
with
the
original
P02
and
a
new
B02
assembly.
c.
Install
power
supply
P02.
d.
Power
on
the
frame
by
reconnecting
the
ac
power
cables
to
the
unit
that
you
are
working
on.
Does
a
system
reference
code
occur?
v
Yes:
Continue
with
the
next
step.
Analyze
hardware
problems
171