HP 8753D Option 011

HP
8753D Option
011 with
Option 1D5
Only
8.
Connect
the
BNC
to
BNC
jump
er
bet
ween
the \EXT
REF" and
the \10
MHz Precision
Reference"
as sho
wn in
Figure 3-20
.
9. Use
a at-head
screwdriv
er
to
remo
v
e
the
screw
that
co
v
ers the
precision frequency
adjustmen
t
as
sho
wn
in
Figure
3-20
.
Insert
a narro
w screwdriv
er and
adjust the
precision
frequency
reference p
otentiometer
for a
spectrum
analyzer
cen
ter
frequency
measuremen
t
of
6
5
Hz.
Figure
OPT1D5
here.
Figure
3-20.
High
Stability
Frequency
Adjustment
Location
10.
Replace
the
A26
b
oard
assem
bly
if
y
ou cannot
adjust for
a
cen
ter
frequency
measuremen
t
of
6
50
Hz.
DRAFT
3/21/106 15:11
Adjustments and Correction Constants 3-47
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