23.
Perform
the
following:
a.
Power
off
the
system.
b.
Remove
one
of
the
regulator
cards
that
was
not
previously
swapped
indicated
in
this
table
for
the
model
selection
for
the
SRC
that
was
in
steps
1
(See
page
to
step
22
(See
page
that
sent
you
here
and
install
a
new
one.
See
the
for
part
numbes.
Number
Model
Regulator
1201/1401
840/SB
R1,
R2
1202/1402
840/SB3
R4,
R5,
R6
1203/1403
840/SB3
R6,
R7,
R8
1204/1404
840/SB3
R9,
R10
1205/1405
840/SB3
R11
1206/1406
840/SB3
R20
1207/1407
840/SB3
R23
(clock
card)
c.
Power
on
the
system.
Does
the
system
power
on?
v
Yes
:
Continue
with
the
next
step.
v
No
:
The
regulator
you
removed
in
this
step
is
the
failing
item.
This
ends
the
procedure.
24.
Have
you
swapped
out
all
the
regulators?
v
No
:
Perform
the
following:
a.
Power
off
the
system.
b.
Remove
the
new
regulator
where
installed
previously
and
install
the
original
regulator.
c.
Repeat
step
23
(See
page
.
v
Yes
:
This
ends
the
procedure.
DPAC
For
use
by
authorized
service
providers.
The
two
port
adapter
cable
(P/N
-
21F9345)
is
the
failing
item.
DRVSWCH
For
use
by
authorized
service
providers.
The
address
switches
on
an
Optical
Disk
Drive
in
the
Optical
Library
need
to
be
checked
and
verified.
Refer
to
the
Web
site
for
more
information.
DSKDRV
For
use
by
authorized
service
providers.
The
disk
drive
and
logic
card
in
a
migrated
expansion
tower
may
be
failing.
See
the
DSKDRV
symbolic
FRU
in
the
manual
on
the
V5R1
Supplemental
Manuals
web
site
for
FRU
isolation
instructions.
DSKTRY
For
use
by
authorized
service
providers.
A
disk
unit
tray
or
a
disk
unit
holder
in
a
migrated
expansion
tower
may
be
failing.
Analyze
hardware
problems
335