3.
Is
the
reference
code
occurring
on
a
Model
270,
800,
810,
820,
or
825
system
unit,
or
an
FC
5074,
FC
5075,
FC
5078,
FC
0578,
FC
5079,
FC
5088,
FC
0588,
FC
5094,
FC
5095,
FC
9074,
FC
9079,
or
FC
9094
I/O
Expansion?
v
Yes
:
Continue
with
the
next
step.
v
No
:
See
symbolic
FRU
ACMODUL
in
the
manual
on
the
V5R1
Supplemental
Manuals
web
site
.
for
FRU
isolation
instructions.
4.
Find
the
model
and
or
feature
code
in
the
table
below,
then
go
to
the
table
for
the
model
you
are
working
on
to
find
the
part
number
and
remove
and
replace
procedure
information.
Note
that
on
some
models
and
feature
codes,
must
be
performed
before
replacing
parts.
Table
1.
Part
replacement
for
unit
reference
code
for
Models
270,
800,
810,
820,
825,
870/890
(FC
9094)
Model
Unit
reference
code
Failing
item
Model
270
00AC
P01,
P02
Models
800,
810
00AC
P01,
P02
Model
820
must
be
performed
before
replacing
parts)
00AC
P01,
P02,
P03
Model
825
00AC
P01,
P02
Models
870/890,
FC
9094
BPC-A/B
P00
and
M41
VPD
to
CB1
(FC
9094),
VSCOMM
cable
00AC
Cable:
PWR23
(See
the
page,
and
follow
the
Models
870
and
890
processor
towers
link.)
FC
5075
00AC
P01,
P02
FC
5078,
FC
0578,
FC
5088,
and
FC
0588
must
be
performed
before
replacing
parts)
00AC
P01,
P02
FC
5074,
FC
5079,
FC
9074,
and
FC
9079
(single
line
cord)
00AC
P01,
P02,
P03
FC
5074,
FC
5079,
FC
9074,
and
FC
9079
(dual
line
cord)
must
be
performed
before
replacing
parts)
00AC
1.
P01,
P02
2.
A01,
A02
FC
5094
and
FC
9094
(dual
line
cord)
must
be
performed
before
replacing
parts)
00AC
1.
P00,
P01,
P02,
P03
2.
A01,
A02
FC
5095
00AC
P01,
P02
5.
For
Models
870/890
with
reference
code
00AC,
if
the
problem
still
prevails,
perform
This
ends
the
procedure.
ACMODUL
instructions
for
Models
830,
840,
SB2,
and
SB3
Note:
The
C
in
the
SRC
(1xxC
xxxx)
indicates
the
problem
is
on
the
processor
tower
side
of
the
Model
840
system
type.
1.
Is
SRC
1xxx
00AC
displayed?
v
Yes
:
On
the
system
unit,
the
00AC
reference
code
can
be
caused
by
an
SPCN
frame-to-frame
cable
problem.
This
usually
occurs
between
the
Model
840/SB3
processor
tower
and
the
FC
9079
Analyze
hardware
problems
269