HP 8753D Option 011 User Manual

Check
1st L
O Signal
at Sampler/Mixer
If the
4kHz
signal is
bad at
the sampler/mixer
assembly
,c
hec
k
the
1st
LO
signal
where
it
en
ters the
sampler/mixer assem
bly
in
question.
If
the
1st
LO
is
fault
y
,c
heck
the 1st
LO signal
at its
output connector
on the
A7
assem
bly
to
determine
if the
failure is
in the
cable or
the
assem
bly
.
If
the
1st
LO
is
go
o
d,
con
tin
ue
with
\Chec
k
2nd
LO
Signal
at
Sampler/Mixer."
Check 2nd
LO
Signal
at
Sampler/Mixer
Chec
k the
2nd
LO
signal
at
the
pins
iden
tied
in
T
able
8-3
.
Refer
to
the
\A12
Reference
Chec
k"
in
Chapter
7,
\Source
T
roublesho
oting,"
for
analog
bus
and
oscilloscop e
chec
ks of
the
2nd
LO
and
w
av
eform illustrations.
Table
8-3
iden
ties
the
signal
lo
cation
at
the
samplers
and
the
A12
assem
bly
.
T
able
8-3.
2nd
LO
Locations
Mnemonic Description Sampler
Lo
cation
Signal
Source
2nd
LO
1
2nd
LO
(0
degrees)
A4/5/6
P1-11
A12P1-2,
32
2nd
LO
2
2nd
LO
(
0
90
degrees)
A4/5/6
P1-4
A12P1-4,
34
If the
2nd
LO
is
go
o
d
at
the
sampler/mixer,
the
sampler/mixer
assem
bly
is
fault
y
.
Otherwise,
troublesho
ot
the
A12
assem
bly
and
asso
ciated signal
path.
8-10 Receiver Troubleshooting DRAFT
3/21/106 15:13
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com

HP 8753D Option 011 Specifications

General

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