Fluke 93 Service Manual page 122

OISASSEMBLINQ THE SCOPEMETER
6-1
6
DISASSEMBLING THE SCOPEMETER
6.1
GENERAL
INFORMATION
Whenever
Uie
ScopeMeter needs
repair and/or
Hardware
SCOPE
Calibration Adjustments, the
Instrument
must be
disassembled.
NOTE:
For ropfacemeni
of
Gomponents
rofor to section
7.2; for
Hardware
SCOPE
Caiibra^on
Adjustments
refer to
section
5.S.1.
This section provides the required disassembling procedures. Both
printed
circuit
boards removed
from the instrument
must be
adequately protected against
damage, and
alt
normal precautions
regarding the
use
oi
toots
must be
observed. During the disassembly
process,
make
a
careful
note
of
all
disconnected
leads
so
that
they
can be reconnected
to their
correct terminals
when
you
reassemble
the Instrument.
WARNING:
Removing
the Instrument covers or removing
parts,
except those
to
which
accees can be gained by
hand,
Is
likely to
expose
live
parte
and
accessibie
terminals
may
be
live.
To avoid
eiectric
shock, disconnect the instrument from
aii
voltage
sources and remove
batteries
before
disassembling the
Instrument.
If
any
adjustment, malrtenanee, or
repair of
the
disassembled
Instrument
under
voltage
is
required,
It
shall
be
carried
out only by
qualified
personnel using
customary
precautions against
electric shock. Capacitors Inside the Instrument
can hold
their
charge even
if
the instrument has been
separated from
all
voltage
sources and
batteries have been removed.
6.2
DISASSEMBLY PROCEDURES
The
following sections describe
frie
disassembly process
of
the
ScopeMeter
in
sequence
(from
fully
assembled
instrument
to
separate primed
circuit
boards
and
chassis pans).
Start
and end
disassembly
at
the appropriate heading
levels.
WARNING:
To avoid
electric
shock, disconnect
test leads,
probes
and power
supply from
any
live
source
and from
the
ScopeMeter
itself.