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SECTION
5.
SYSTEM WIRELIST AND PARTS LIST- SYSTEM MOTHERBOARD (A19)
Wi
t
h
t he
exception of
the
Frequency-Standard
In
terface
board
(Al6), the
RF
Input
module
(A17), and
t he
Front
Panel
assem bly (Al8),
all
modules plug
into
!'ockets
mou nted
on
the
System
Motherboard (Al9).
Ri
bbon
cables
connect
the Al6
and Al
7 to
the Al9
boa rd
.
T he
Fron
t- Panel Left Flex and Front
-Panel
Right Flex connec
t
t he AJ8 to t he Al9.
T
he
System Motherboard
provides most of t he
interconnections
between
modules. These
intercon-
nections
are
specified
by t he
System Motherboard
wirelist (Table 5-l). Because of shield ing
requ
ire-
5-1
ments,
some
interconnections
must be made with
co-axial
cables.
These interconnections
are specified in
the
system wirelist (T
able
5 -2).
The
printed
wiring board assembly
and
parts list
for
t
he System
Motherboard are
shown
after
these wire-
lists
in Figure 5-l. Following
that,
Figu re
5-2
coordi
-
nates views
of the
System
Analyzer's
back and
top
(cover
removed
)
wi
t
h
a
chassis
parts list,
and
Figu re
!).
:
~coo
rdi
na
t
es
a view
of the
Analyzer's bottom
(cover
re
moved
) with t
he
system
parts list.
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