HP 8753D Option 011

No
de 24
2nd LO
Perform
step A12,
abo
ve,
and then
press 4
MEAS
5
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
ANALOG IN
4
24
54
x1
5
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
COUNTER: ANALOG
BUS
4
MENU
5
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
CW
FREQ .
This
node
coun
ts
the
2nd
LO
used
b
y
the
sampler/mixer
assem
blies to
pro duce
the 2nd
IF of
4
kHz.
As
y
ou
v
ary
the
frequency
,the
counter
reading should
change
to
v
alues
v
ery
close
to
those indicated
belo
w:
F
requency
En
tered
Coun
ter
Reading
0.3
to
1
MHz
frequency
en
tered
+4
kHz
1
to
16
MHz
not
accurate
16
to
3,000
MHz
996
kHz
No
de
25
PL
Ref
(phase
lo
c
k
reference)
P
erform
step
A12,
ab
o
v
e,
and
then
press
4
MEAS
5
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
ANALOG
IN
4
25
5
4
x1
5
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
COUNTER:
ANALOG
BUS
4
MENU
5
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
CW
FREQ
.
This
no
de
coun
ts
the
reference
signal
used
b
y
the
phase
comparator
circuit on
the A11
phase
lo
c
k
assem
bly
.
As
y
ou
v
ary
the
frequency
,
the
coun
ter
reading
should
c
hange
as indicated
b
elo
w:
F
requency
En
tered
Coun
ter
Reading
0.3
to
1
MHz
frequency
en
tered
1
to
16 MHz
not
accurate
16
to
3,000
MHz
1
MHz
10-34 Service Key Menus and Error Messages DRAFT
3/21/106 15:14
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