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1269 User Manual
Maintenance 7-6
Removal and
Replacement of The
Power Supply
Assembly
To remove and install the power supply assembly from the
mainframe. Refer to
Figure 7-3
and perform the steps below.
1.
Unplug the AC power cord from the rear panel of the
1269.
2.
Loosen the four captive thumbscrews which secure the
power supply to the mainframe. See
Figure 7-3
for
locations of these four thumbscrews. Ensure that the
threads of the four thumbscrews are disengaged from
the captive pem nut on the mainframe.
3.
Push the base of the recessed handle to rotate and
expose the mainframe handle.
4.
Firmly grasp the handle and pull evenly using a slight
side to side rocking motion. If the power supply is
difficult to remove, recheck to make sure all the
thumbscrews are disengaged.
5.
To reinstall a power supply into the mainframe, first
align the power supply with the cavity at the rear of the
mainframe. Note that the silkscreen on the supply rear
panel will read correctly when the supply is in the
proper orientation. Use the alignment of the threads on
the upper fasteners as a visual guide.
6.
Gently guide the power supply forward until
engagement of the blind-mate connector is felt.
7.
Exert pressure by using the palm of hand to assist final
engagement.
8.
When fully seated tighten the four thumbscrews. Do not
over-tighten.
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