Performance Tests
i. Toggle
the
Trigger SOURCE
switch
to
EXT
: 10.
j. CHECK -
That
the
display
can
be
triggered
at
about
the
midrange
of
the
Trigger LEVEL
control.
k.
Push
the
Trigger SLOPE
switch
to
the
negative
going
slope
and
repeat
part
j.
1.
Disconnect
the
test
equipment
from
the
instrument.
Step
6.
TV
Field
Trigger
Sensitivity
a. SET:
Vertical
MODE ........................ CH 2
VOL TS/DIV (CH
2)
.................. 1 V
SEC/DIV ................................... 0.2
ms
Trigger SLOPE .........................
Negative
Going
Trigger MODE ......................... TV FIELD
b.
Connect
the
TV
signal
generator
video
output
to
the
CH
2
ORY
input
connector
via
a 50 n BNC
coaxial
ca-
ble.
c.
Press
the
lower
part
of
the
V
ARiable
VOL TS/DIV
control
for a
one-division
composite
sync
signal
display.
d. CHECK -
That
a
stable
display
is
obtained.
e. SET:
CH 2 INVert ............................. INV
Trigger SLOPE .........................
Positive
Going
f.
CHECK -
That
a
stable
display
is
obtained.
2212 User Manual
C-
23
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