4
Troubleshooting
Introduction
This
chapter
provides
assembly
level
troubleshooting
information
for
the
4338B.
The
information
includes
theory
of
operation,
and
troubleshooting.
Safety
Considerations
This
chapter
contains
W
ARNINGs
and
CA
UTIONs
that
must
be
followed
for
your
protection
and
to
avoid
damaging
the
equipment.
W
arning
The
servicing
procedures
described
herein
are
performed
when
power
is
supplied
to
the
instrument
and
its
protective
covers
are
removed.
This
type
of
servicing
must
be
performed
only
by
service
trained
personnel
who
are
aware
of
the
hazards
involved
(for
example
,
re
,
and
electrical
shock).
When
serving
can
be
performed
without
power
applied
to
the
instrument,
remove
power
from
the
instrument.
Before
any
repair
is
completed,
ensure
that
all
safety
features
are
intact
and
functioning,
and
that
all
necessary
parts
are
properly
connected
to
the
protective
grounding
system.
Required
Equipment
T
able
1-1
lists
the
equipment
required
for
troubleshooting.
T
roubleshooting
4-1
