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REPLACEMENT
8.
Slide the ·system unit into the enclosure.
9.
Install the rear chassis retaining bracket.
10.
Reconnect any removed cables to
the
Patch
and
Filter
Panel assembly.
11.
Replace the front and rear covers.
12.
Turn-on system and monitor
power.
run.
Microverify
should
13.
Run Macroverify.
4.4
BACKPLANE AND SIGNAL DISTRIBUTION PANEL
4.4.1
Backplane Removal
1.
Turn-off system and monitor power.
2.
Remove
the
system
ac
power
cord
receptacle.
from
the
wall
3.
Remove the system
unit
front
cover
and
rear
cover.
Grasp
each
end
of the cover and pull the cover toward
you (Figures 4-1 and 4-8).
4.
Note the position of any external
cables
connected
to
the Patch and Filter Panel assembly.
Remove the cables.
5.
Remove the rear chassis retaining bracket on
the
rear,
left side of the system unit.
6.
Slide the system unit out of the enclosure.
7.
Remove the storage subsystem cover (Figure 4·10}.
8.
Remove the backplane modules cover.
9.
Loosen the two captive screws on the
Patch
and
Filter
Panel assembly and swing it open (Figure
4·3).
10.
Remove the· backplane modules as described in
subsection
4.1.1, steps 6, 7, and 8.
4-22
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