Power
Supply
Test
Switch
Procedure
Before
you
replace
a
power
supply,
use
this
procedure
to
determine
if
the
power
supply
needs
replacing.
1.
Perform
steps
1
through
7
in
“Power
Supplies
and
Power
Supply
Fan
Assemblies”
on
page
452.
2.
Connect
the
power
cord
to
the
power
supply
and
look
at
the
front
of
the
power
supply.
v
If
the
LED
on
the
front
of
the
power
supply
is
not
blinking,
the
power
supply
is
defective.
Continue
with
step
8
in
“Power
Supplies
and
Power
Supply
Fan
Assemblies”
on
page
452.
v
If
the
LED
on
the
front
of
the
power
supply
is
blinking,
go
to
the
next
step.
Test
Switch
3.
Use
a
pencil
to
press
the
test
switch
on
the
side
of
the
power
supply.
v
If
the
LED
on
the
front
of
the
power
supply
is
on
steady
and
the
internal
fan
spins,
the
power
supply
is
good
and
can
be
returned
to
the
system.
v
If
the
LED
on
the
front
of
the
power
supply
is
not
on
steady
and
the
internal
fan
does
not
spin,
the
power
supply
is
defective.
Continue
with
step
8
in
“Power
Supplies
and
Power
Supply
Fan
Assemblies”
on
page
452.
Chapter
9.
Removal
and
Replacement
Procedures
455
Summary of Contents for 6H0
Page 2: ......
Page 12: ...x Service Guide ...
Page 16: ...xiv Service Guide ...
Page 18: ...xvi Service Guide ...
Page 28: ...R CEC Drawer 5 EIA Units Primary I O Drawer 5 EIA Units 8 Service Guide ...
Page 29: ...CEC Drawer Front View 1 1 Power On LED Chapter 1 Reference Information 9 ...
Page 33: ...5 Fan 4 U0 1 F4 6 Fan 3 U0 1 F3 Chapter 1 Reference Information 13 ...
Page 37: ...5 Fan 4 U0 2 F4 6 Fan 3 U0 2 F3 Chapter 1 Reference Information 17 ...
Page 77: ...DC Power Cable Routings Chapter 1 Reference Information 57 ...
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Page 182: ...162 Service Guide ...
Page 444: ...424 Service Guide ...
Page 468: ...Replacement Replace in reverse order 448 Service Guide ...
Page 489: ...Chapter 10 Parts Information This chapter contains parts information for the system 469 ...
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Page 493: ...1 2 3 4 5 6 7 8 9 10 11 Chapter 10 Parts Information 473 ...
Page 497: ...7 8 9 10 6 1 2 3 4 4 5 Chapter 10 Parts Information 477 ...
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