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Models
423A/8470A
t
l'u
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Page
7
REPLACING AMPHENOL APC-? CENTER CONTACT
Through
wear
or
damage the
contact in
the
center
conductor may
need
replacing. This
contact
is
a
sm
all
four
-pronged
coll.et which
snaps
into
a
recess
in
the
center
conductor. This
contact
is
normally
held
in bythe spring-actionof thefour prongs. With
a
magnifying glass
examine
this contact to deter-
mine
if it
needs
replacement.
DO
NOT
REMOVE
THIS CONTACT
FOR
INSPECTION
(itmaybedam-
aged
by
removing).
The
contact should
be
free of
burrs
or
wear
and
the prongs should
be
equally
spaced.
If
the contact
is
removed do NOT
re-use
it
(it
may
be
damaged
by
removal). This
contact
is
Amphenol*
part
number
131-129
and Hp
1250-
090?. If this
contact
needs
replacement
and a new
contact
is
available
proceed as
follows:
1.
Place the instrument
so
the
connector faces
down,
if
possible.
2.
Tap
the
connector
lightty
and
the
contact
should
now protrude
slightly.
Insert
the
centering pin of
the
Hewlett-Packard collet remover,
Stock Number
5060-0236,
withthe jawsopen.
If
thistool isnotaw.il-
able, an ordinary draftsman's
mechanical pencil
may be used (the end
of
the jaws
may
have
to
be
filed to
get
a good
grasp
at the
very
end).
3.
Allow
the
jaws
on
the
tool
used
to
close
and
pull straight
away
from
the
connector
without
twisting.
The contact should
come
with
the
tool.
If
not,
repeat the
process.
Do NOT re-use
the
contact.
4.
Snap
in a
new
contact by pushing a
new
con-
tact in
place.
(Amphenol*
Part
number 131-129;
Hp partnum-
ber
1250-0907)
*Amphenol
RF
Division,
Danbury,
Conn.
COUPLING SLEEVE
SUPPORT BEAD
INNER
CONDUCTOR
CONTACT
OUTER
CONDUCTOR
COUPLING
NUT
eo?l,a.
a
Figure
?.
APC-7
Connector
o.314
M
tN.
o.316
MAX.
o.063
MrN.
o.o66
MAX.
o.o63
MrN.
o.o66
MAX.
ALL
DIMENSIONS
IN
INCHES
o.3
t6
MrN.
o.320
MAX.
0.207
MAx.
0.207
MtN.
907t-^-IA
Figure
8.
Type
N
Connector
\y
01613-8
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