Power, Supply, Without – Dell TL2000 User Manual
Page 163: Leds, Meanings
Table
7-2.
Power
Supply
LED
Meanings
1
If
the
blue
LED
is
lit,
AC
voltage
is
available.
2
If
the
amber
LED
is
lit,
there
is
a
possible
fan
problem
or
other
power
supply
issue.
The
power
supply
will
need
replacement.
3
If
the
green
LED
is
lit,
DC
power
is
OK
and
active.
4
Cooling
Fan
Grill
5
Thumb
Screws
6
Power
Receptacle
Note:
Not
all
power
supplies
have
LEDs.
The
original
power
supply
for
the
2U
library
did
not
have
LEDs
though
any
power
supplies
replaced
will
likely
have
LEDs.
The
4U
library
has
power
supplies
with
LEDs.
If
the
Library
does
not
power
on:
1.
With
library
power
OFF
and
the
power
cord
unplugged,
loosen
the
three
thumb
screws
( 5 ),
grasp
two
of
the
thumb
screws,
pull
the
power
supply
out
half
way
and
then
reseat
the
power
supply
and
tighten
the
three
thumb
screws.
2.
Ensure
the
power
cord
is
plugged
in
at
the
power
supply
( 6 )
and
at
the
electrical
outlet,
then
turn
library
power
ON.
a.
For
power
supplies
with
LED’s,
the
“Blue”
LED
will
be
lit
if
AC
power
is
good.
b.
If
your
power
supply
does
not
have
LED’s,
feel
for
air
flowing
out
of
the
cooling
fan
grill
on
the
rear
of
the
library
( 4 ).
AC
is
good
if
air
is
flowing
from
the
cooling
fan
grill.
3.
3.
If
AC
appears
to
be
missing
a.
Plug
the
power
cord
into
another
electrical
outlet.
b.
Plug
another
device
into
the
outlet
to
test.
c.
If
the
outlet
tests
OK,
try
another
power
cord.
a77ug198
4
6
5
Figure
7-2.
A
80w
power
supply
without
LEDs
Chapter
7.
Troubleshooting
7-9