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Mode
l
5315A
/B
Operat ion
1.
Before
switch
ing
on the imtrument, ensure
t
hat the
power transformer
primary
is matched to
the
available
li
ne voltage,
the correct
fuse is installed and the safety
precau tions
are
taken
.
Refer
to
Power Requiremen ts, Line
Vo ltage
Selection,
Power
Cables,
and
associated
w
arnings
and
cautiom
in
Section
II
of
this
ma
nu
al.
2.
Press
FREQ AlPER A
switch.,
and adjust
LE
VEL/SENS
controls
"
. , fu
ll
y ccw.
All
other
switches
to the OUT position.
3.
Ad just
GATE
TIME
control
0
to
approximate minimum.
4.
Set POWER switch
Oto
the
O
N
position and observe
the power-up
self-check.
Verify
all
seg-
ments of
the
display;
decima
l
poi
nt
after
MSD
;
and
the
O
VFL,
Hz,
S,
and
GATE annunciators
light
momentarily,
fo llowed
by
a
display
of
"00. Ver if
y
both
trigger lights
are
lit.
NOTE
When
the
instrument
is first turned on, the
microcomputer
performs
a
self-check
.
If, during pow
er-up
self-check,
an error
is
detected
,
a
numbered error
message
will
flash
momentarily
and the Error annun
ci-
ator
. , w
ill light and remain
lit.
Verify
the
error
number
by
repeating
power-up self
-check and
refer to
paragraph
3-
52
Error
Messages.
5.
Verify
Display
Check
rou
tine
by
placing
all
fundion
select switches
in the
O
UT
pOSition. This
may
be
accomplished
by
pressing
any
gray colored
functio
n
switch
partially
in
,
relea
si
ng
one
that
is
locked
in
.
Observe
the cyding
of the
display
from
all zero's
to
all
one's,
two's,
three's
..
.
.
etc.,
to all
blank.
Refer
to
paragraph
3-29.
NOTE
The Display
Check routine
is an unlabeled
funct
ion,
used to
verif
y the
operation,
digits and
most
an
nunicators
within the
Display assembly.
Figure
3-10. Operator's
Check
3-1
5
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