Agilent Technologies HP 83711B Service Guide

1
Troubleshooting
Introduction
This
chapter
contains
troubleshooting procedures
that isolate
problems to
the
assembly
level.
Always
begin
troubleshooting
by following
the procedure
titled \Main
Troubleshooting." At
the
start
of
the
main troubleshooting
procedure,
run the
synthesizer internal
self
test.
Depending
on
the
error
messages returned
by the
self test
routine,
follow
the
procedures
that
verify
the
detected
error
condition.
These procedures
are self-contained
and also
verify the
inputs
that
can
have
an
eect on
the detected
error.
If the
self
test
does
not
detect
any
errors
,
a
set
of
procedures
at the
end of
this
chapter
veries
circuits
that
are
not
checked
with
the
self
tests
.
These
procedures
are
referenced
by
symptom.
Prior
to
Beginning
Troubleshooting
The
following
paragraphs
present
information
that
must
be
understood
prior
to
beginning
troubleshooting.
This
information
is
important
to
know
regardless
of
the
path
taken
by
the
troubleshooting.
The
Service
P
osition
T
o
access
many
of
the
measurement
points
on
an
assembly
,
the
assembly
must be
installed
in
the
service
position.
Refer
to
procedures
in
Chapter
5,
\Assembly
Replacement,"
for
instructions
on
how
to
install
a
given
assembly
in
the
service
position.
These
procedures
are
grouped
by
assembly
.
The
individual
troubleshooting
procedures note
when it
is
necessary
to
install
an
assembly
in
the
service
position.
P
ower
Supply
V
erication
Occasionally
,an
apparent failure
on
an
assembly
might
be
caused
by
a
voltage
that
is
out
of
specication
on the
power supply
assembly.
On
the end
of the
power supply
facing
the
front
of
the
synthesizer
,
there
are
seven
green
LEDs
. When
an LED
is on,
that supply
is operating
within
its
specied
tolerance
.
If
the
LED
is
o,
the
supply
has
failed
or
the
supply
is
being
loaded
down
by
one
of
the
assemblies
.
Troubleshooting 1-1

Agilent Technologies HP 83711B Specifications

General

Brand	Agilent Technologies
Model	HP 83711B
Category	Test Equipment
Language	English