Tektronix 465M - Interconnecting Cables and Connectors; Rear Panel Assembly Removal and Replacement

(3)
Remove the
five
screws
holding the
EMI Shield
(2
on
left side near
the
front, 2
on the
top
at
the rear,
and
1
on the top
right at
the
front).
(4)
Lift the
EMI Shield
straight up.
(5)
Replace
the
EMI Shield
and
cabinet
top
in re-
verse
order.
b.
Interconnecting
Cables and
Connectors
(Figure
5-4).
The
interconnecting
cable
assemblies are
factory
assembled.
They
consist
of
machine
installed pin
connectors
mounted
in
plastic
holders.
The plastic
holders
are easily
replaced as
individual
items, but if
the connectors
are faulty,
the
entire
cable should be
replaced. It is
possible
for the pin
con-
nectors to
become
dislodged
from the plastic
holders.
If
this happens,
the connector
can be
reinstalled as
follows;
AIR
FORCE
T033A1-13-496-1
NAVELEX
0969-LP-1
70-0010
Maintenance
Instructions
NOTE
Holder
positions
are
numbered
(number
one is
identified
with
a
triangle).
The
wires
are ElA
color
coded
to
match
the
numbers
on the holder.
For
example,
brown
stripe
for
position
1
(triangle),
red
stripe
for
position
2,
yellow
stripe
for
position
4,
etc.
(3)
Bend
grooved
part
of holder so
that
connector
is
inserted
into
groove.
(4)
When
plugging
connector
holders
on to board
pins,
be
sure to
match
triangle
mark
on
holder with
tri-
angle
mark
on
circuit
board.
(1
)
Bend
grooved
portion
of
holder away
from
cable
as
shown.
(2)
Reinsert
connector
into
its
hole in
the
plug-in
portion
of
holder.
Wires
are
positioned
in
holder
according
to
color
code system
(see
note below).
Figure 5-4.
Multiconductor
connector
identification.
c. Rear Panel Assembly Removal
and Replacement
(Figure
5-5).
(1
)
Remove the cabinet
top.
(2)
Unplug the
power cord.
(3)
Unplug the coaxial connector end
at the +A
GATE
OUT (white wire with yellow
trace) and CH
2 OUT
(white
wire with brown trace) connectors
located on the
A8 Sweep and
A5
Vertical
boards, respectively.
(4)
Remove the four
screws on the inside
corners of
the rear subpanel.
When
removing the
rear
panel
in the next
step,
be
careful
not to
break
or
damage
the
attached
wiring or
cables.
(5)
While
carefully
pulling
the top
of the
rear
panel
away
from the
mounting
brackets
lift the
bottom
up
and
out
of the
groove
in the
cabinet
bottom.
Then lay
the
rear
panel
on its
back
and
disconnect
the
attached
wires
and
cables.
(6)
Replace the
rear
panel in
the
reverse order.
Re-
connect
the wires and
cables.
Then hold
the
panel
vertical
and set it
into
the groove
in
the
cabinet
bottom.
Align
the
screw
holes and
install the
four
corner
screws.
If
the
rear
panel wires
and
cables
were
not
tagged
when
removed,
the
following
may
be
useful.
5-33