HP 8753D Option 011

Step
4. F
aulty Group
Isolation
Use the
following
pro
cedures
only
if
y
ou
ha
v
e
read
the
previous sections
in this
chapter
and
y
ou
think
the
problem
is
in the
analyzer. These
are simple
pro cedures
to v
erify the
four
functional
groups in
sequence, and
determine whic
hgroup
is fault
y
.
The four
functional groups
are:
p
o
w
er
supplies
digital
con
trol
source
receiv
er
Descriptions
of
these
groups
are
pro
vided
in
Chapter
12,
\Theory
of Op
eration."
The
c
hec
ks
in
the
follo
wing
pages
m
ust b
ep
erformed in
the
order
presen
ted.
If
one
of
the
pro
cedures
fails,
it is
an indication
that
the
problem
is
in
the
functional
group
c
hec
k
ed.
Go
to
the
troublesho
oting
information
for
the
indicated
group,
to
isolate
the
problem
to
the
defectiv
e
assem
bly
.
Figure
4-3
illustrates
the
troublesho
oting
organization.
Figure
TO4
here.
Figure 4-3. Troubleshooting Organization
4-8 Start Troubleshooting Here DRAFT
3/21/106 15:12
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