HP 8753D Option 011 User Manual

If
the
coun
ter
readings
are
incorrect
at
the
500
kHz
and
2MHz
settings only
,go
to \FN
LO
at
A12
Check."
If all
the coun
ter readings
are incorrect
at
all
three
CW
frequencies,
the
coun
ter
ma
y
b
e
fault
y
.
P
erform
the
\Oscilloscop
e
Metho
d"
chec
kof
the signals
described
belo
w. (If
the
signals
are go
od,
either the
A10 or
A14 assem
blies could
be
fault
y
.)
Oscilloscope
Method
Y
ou
need
not
use
the
oscilloscop
e
metho
d
unless
the analog
bus is
non-functional or
any
of
the
signals
fail
the sp
ecications listed
in T
able 7-2
.
If
the analog
bus is
non-functional or
the previous
c
hec
k
has
rev
ealed
questionable
signals,
observ
e
the
signal(s)
with
an
oscilloscop
e.
T
able
7-3
iden
ties
a
con
v
enien
t
test
poin
tand
a
plot
for
the
v
e
signals
listed.
T
able
7-3.
A12
Reference
Frequencies
Mnemonic Signal
Description
Lo
cation
See
Figure
Analyzer
Setting
FN100kHzREF 100
kHz
Reference
A13TP5 Figure
7-8
an
y
REF Phase
Lo
c
k
Reference
A11TP1
Pin
9
Figure
7-9

16
MHz
CW
REF Phase
Lo
ck
Reference
A11TP1
Pin
9
Figure
7-10
5
MHz
CW
FN
LO*
F
ractional-N
LO
A14J2 Figure
7-11
10
MHz
CW
4
MHz
REF
4
MHz
Reference
A12TP9 Figure
7-12
an
y
2ND
LO+/
0
Second
LO
A12P1-2,4 Figure
7-13

16
MHz
CW
2ND
LO+/
0
Second
LO
A12P1-2,4 Figure
7-14
14
MHz
CW
* Not
an A12
signal,
but
required
for
A12
lo
wband
op
eration.
DRAFT
3/21/106 15:13
Source Troubleshooting 7-13
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HP 8753D Option 011 Specifications

General

Brand	HP
Model	8753D Option 011
Category	Measuring Instruments
Language	English