Specifications

NOTE
Attach
a bnc-to-binding
post
adapter
to the
A
TRIG'
GER
external
input
iack.
Using
a test
lead
with
an
attigator
ctip at
each
end,
connect
one
alligator
clip to
the
adapter
and
the
other
clip
to the
xl
kHz CAL'
I.BRATOR
output.
2. Set
A
TRIGGER
SOURCE
switch
to
EXT.
3.
Depress
VERT
MODE
A
TRIG
VIEW
push
button
and
release CH
1
VERT
MODE
push
button.
4.
Adjust
A
TRIGGER
SLOPE
and
LEVEL
controls
to
stablize
and
center
the
display.
NOTE
The CALTBRATOR
signal
is not
intended
to
be
used
as
a
precise
timing
reference.
lt
is employed
in the
fotlowing
steps
only
as
a
convenient
means
of
dem-
onstrating
basic
instru
ment operation.
graticule
division
(see
Figure 12]l.
Use
the
horizontal
POSITION control
to
align
the
waveform
with
graticule
lines.
3
DIVTSIONS
300
mV
2756-t3
1 SOUARE-WAVE
PER
DIVISION=
lkHz|NPUT
SIGNAL
5.
Verify
a
display
of
approximately
one
square
wave
(first positive
edge
to
second
positive
edge)
per
Figure
12.
Basic
4658 timing
check.
38
4658/DM44
operators @