Fluke 8506A Instruction Manual page 279

INTRODUCTION
This section of the
manual
contains information
necessary to
backdate
the
manual
to
conform
with
earlier
pcb
configurations.
To
identify the
configuration of
the
pcb's, refer to
the revision
letter
(marked
in ink)
on
the
component
side
of each pcb
assembly.
Table
1
defines the
revision
levels
documentated
in this
manual.
NEWER
INSTRUMENTS
Changes and improvements
made
to the instrument
are
identified
by incrementing the
revision
letter
marked on
the affected
pcb assembly.
These changes
are
documented
on
a
supplemental change/
errata sheet which,
when
applicable,
is
inserted
at
the front of the
manual.
OLDER INSTRUMENTS
To
backdate
this
manual
to
conform
with
earlier revision
levels,
perform
the
changes
indicated in
Table
1.