IBM 4846-545 Service Guide - Page 67

Power, supply, removing, replacing

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Removing and replacing FRUs Power supply - removing and replacing 1. Switch OFF the power to the SurePOS 500. Unplug the power cord from the external power source. 2. Remove the back cover as described at "Rear cover removal" on page 30. 3. Unplug the AC power cord on the back of the power supply. 4. Unlatch the power supply latch arm by loosening the captive thumbscrew and swinging the arm upward. 5. Lift upward until it stops. 6. Pull the power supply out. Figure 23. Removing the power supply 7. To replace, make sure the latch arm is all the way up. Slide the power supply into the bottom of the system unit until it stops. Ensure that the power supply latch arm hooks go inside the metal frame. 8. Rotate the latch arm downward and replace the thumbscrew. Note: You may need to push in at the left bottom of the power supply to get the thumbscrew to align with the screw hole. Chapter 3. Removing and replacing FRUs for the SurePOS 500 Models 545 and 565 45

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Power
supply
–
removing
and
replacing
1.
Switch
OFF
the
power
to
the
SurePOS
500.
Unplug
the
power
cord
from
the
external
power
source.
2.
Remove
the
back
cover
as
described
at
“Rear
cover
removal”
on
page
30.
3.
Unplug
the
AC
power
cord
on
the
back
of
the
power
supply.
4.
Unlatch
the
power
supply
latch
arm
by
loosening
the
captive
thumbscrew
and
swinging
the
arm
upward.
5.
Lift
upward
until
it
stops.
6.
Pull
the
power
supply
out.
7.
To
replace,
make
sure
the
latch
arm
is
all
the
way
up.
Slide
the
power
supply
into
the
bottom
of
the
system
unit
until
it
stops.
Ensure
that
the
power
supply
latch
arm
hooks
go
inside
the
metal
frame.
8.
Rotate
the
latch
arm
downward
and
replace
the
thumbscrew.
Note:
You
may
need
to
push
in
at
the
left
bottom
of
the
power
supply
to
get
the
thumbscrew
to
align
with
the
screw
hole.
Figure
23.
Removing
the
power
supply
Removing
and
replacing
FRUs
Chapter
3.
Removing
and
replacing
FRUs
for
the
SurePOS
500
Models
545
and
565
45