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Model 34S5A
TROUBLESHOOTING
Section VIII
isolated
by
substituting
it
with
a
good
A/D
board.
f.
Outguard
Logic Troubleshooting
(Service
Group
F)
:
This
service
group
should be used
if
a defective
outguard
section
has been
isolated
by
the
half-split
technique. Helpful hints for the Signature Analysis
(SA)
method
are
mainly
given
in
this
group.
g.
Miscellaneous
Troubleshooting
(Service
Group
G)
:
This
service
group
can be used
for
troubleshooting
power
supplies,
reference assembly, turn-over
errors,
and
others.
The
troubleshooting information
in this
group
does not
fit
in
the other groups.
h.
Troubleshooting
Diagrams
(Service
Croup
H):
Troubleshooting
Diagrams
may
be used
to
service
the
3455A
in
place
of
the other
service
groups. This
group
also
contains a
detailed
block
diagram and
all
the
schematics
of
the
circuits
used
in
the instrument.
8-39
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