v
No
:
Go
to
step
48
(See
page
.
v
Yes
:
Remove
the
SPCN
optical
adapter
A
from
the
preceding
frame
in
the
string
that
cannot
become
powered
on.
See
Remove
and
replace
procedures
in
the
Repair
and
Parts
information
for
the
system.
.---------.
.---
(A)
SPCN
Optical
adapter
|
System
|
|
|
Unit
|
V
|
J15
|
.-.
.-.
’----.----’
|
+------------+
|
|
|
+------------+
|
.----’----.
.-------’-+
.-------’-+
.---------.
|
J15
|
|
J16|
|
J15|
|
|
|Frame
J16+-+J15
Frame|
|Frame
J16+-+J15
Frame|
|
1
|
|
2
|
|
3
|
|
4
|
’---------’
’---------’
’---------’
’---------’
^
|
’---
Failing
frame
47.
Perform
the
following:
a.
Connect
the
negative
lead
of
a
multimeter
to
the
system
frame
ground.
b.
Connect
the
positive
lead
of
a
multimeter
to
pin
2
of
J16
on
the
ac
module
or
SPCN
card
in
the
frame
from
which
you
removed
the
SPCN
optical
adapter
in
step
46
(See
page
.
Note:
If
you
are
working
on
a
system
unit,
the
cable
may
be
connected
to
either
J15
or
J16.
Use
an
insulated
probe
or
jumper
when
performing
the
voltage
readings.
c.
Note
the
voltage
reading
on
pin
2.
d.
Move
the
positive
lead
of
the
multimeter
to
pin
3
of
J16
on
the
AC
module
or
SPCN
card.
e.
Note
the
voltage
reading
on
pin
3.
Is
the
voltage
on
both
pin
2
and
pin
3
from
1.5
V
dc
to
5.5
V
dc?
v
No
:
Exchange
the
AC
module
or
SPCN
card
(see
symbolic
FRU
for
the
system,
or
see
symbolic
FRU
in
the
frame
from
which
you
removed
the
SPCN
optical
adapter.
See
the
topic,
or
in
the
manual
on
the
V5R1
Supplemental
Manuals
web
site
,
depending
on
the
secondary
frame
you
are
working
on.
This
ends
the
procedure.
v
Yes
:
Exchange
the
following
FRUs,
one
at
a
time.
See
the
topic,
or
the
manual
on
the
V5R1
Supplemental
Manuals
web
site
,
depending
on
the
secondary
frame
you
are
working
on.
–
AC
module
or
SPCN
card
(see
symbolic
FRU
in
the
failing
frame
(first
frame
with
a
failure
indication)
–
AC
module
or
SPCN
card
(see
symbolic
FRU
or
in
the
preceding
frame
in
the
string
–
SPCN
optical
adapter
A
in
the
preceding
frame
in
the
string
–
SPCN
optical
adapter
B
in
the
failing
frame
–
SPCN
optical
cables
C
between
the
preceding
frame
in
the
string
and
the
failing
frame.
54
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270,
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Hardware
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