BUSPWR
For
use
by
authorized
service
providers.
There
is
a
problem
with
the
+29V
Bus.
Attention:
AC
power
must
be
removed
from
the
system
before
removing
or
installing
regulator
3.
Perform
the
following:
1.
Is
the
SRC
1xxx
1200
displayed?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
This
ends
the
procedure.
2.
Perform
the
following:
a.
Remove
regulators
R01
to
R10
(except
R3)
R11
and
R20
from
the
system
unit.
b.
Power
on
the
system.
Is
the
SRC
1xxx
1200
displayed?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
step
12
(See
page
3.
Perform
the
following:
a.
Remove
one
of
the
AMDs
from
the
system
not
previously
removed
during
this
procedure.
b.
Power
on
the
system.
Is
the
SRC
1xxx
1200
displayed?
v
Yes
:
Continue
with
the
next
step.
v
No
:
The
AMD
you
removed
in
this
step
is
the
failing
item.
This
ends
the
procedure.
4.
Have
you
removed
all
of
the
AMDs
one
at
a
time?
v
No
:
Perform
the
following:
a.
Install
the
AMD
that
was
removed
in
step
3
(See
page
b.
Repeat
step
3
(See
page
v
Yes
:
Install
all
AMDs
and
continue
with
the
next
step.
5.
Perform
the
following:
a.
Power
off
the
system.
b.
Remove
the
battery
power
unit
charger.
c.
Power
on
the
system.
Is
the
SRC
1xxx
1200
displayed?
v
Yes
:
Continue
with
the
next
step.
v
No
:
The
battery
power
unit
charger
that
you
removed
in
this
step
is
the
failing
item.
This
ends
the
procedure.
6.
Perform
the
following:
a.
Remove
all
except
one
of
the
bulk
power
supplies
from
the
system.
b.
Disconnect
all
of
the
disk
units
and
removable
media
devices
by
pulling
them
out
of
the
enclosure
about
one
inch.
c.
Power
on
the
system.
Is
the
SRC
1xxx
1200
displayed?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
step
10
(See
page
Analyze
hardware
problems
295
