Circuit Board and Attenuator FRU Removal
How to Remove the Front Panel
2 .
Unhook
spring from the
bar,
aside.
T-8 screwdriver
the four
fasten the front
to the
and bottom
.
4.
Pull the
bar as far out of
instrument as it will come,
leave
position.
Insert a slender, sharp-pointed tool. such as a scribe, between
and the
notch around the release bar. Gently
front
from lhc
Use care to prevent bending
How to Install the Front Panel
Check that the four screws that
front
lo
top and bottom
frames are removed.
2 .
3 .
4 .
5.
6.
7.
Check
the release bar
spring is
Set lhe plug-in on its side with the front
facing you.
Pull
har as
of
instrument as it will
and
position.
Position the front panel so that the notch in lhe
fits over the
bar,
four front-panel tabs into
i”
(You may need to pull the top and
frames away from
to allow
front-panel tabs to fit
casting and
frames.)
Gently snap the edges of the front panel into place
input
and the
of the
a
T-S
lo
four screws that
sub-
panel to the top and
frames.
Install
release bar return spring. Orient
spring so
ils loop fits
the frame hook
(flat against the frame section).
How to Remove and Install an AZ Front-Panel Board
1.
Remove the front panel as outlined in “How to Remove the Front
2.
Unplug the
that provides electrical
to
Al Main
board.
.
Use a
T-6
to
two screws that
A2
board to the
and remove the A2 Front-Panel
hoard.
4.
To replace a” A2 Front-Panel board, follow the preceding
in
or-
der.
Maintenance- I
Service
Summary of Contents for 11A32
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