Operating instructions

V
A°7
.
CHECK
INTERNAL
TRIGGER
JITTER
b
.
Set
the
TRIGGERING
SOURCE
to
LINE,
the
TIME/DIV
switch
to
1
ms,
and
the
MAG
switch
to
X1
.
a
.
Set
TRIGGERING
COUPLING
to
AC
and
set
the
LEVEL
control
for
a
stable
display
(TRIG'D
light
on)
.
,/
b
.
CHECK---For
a
stable
display
with
no
more
than
0
.1
division
(0
.1
nanosecond)
of
jitter
.
,/
A8
.
CHECK
LINE
TRIGGERING
V
d
.
CHECK--That
the
display
is
not triggered
(TRIG'D
a
.
Remove
all
signal
connections
.
light
off)
at
either
end
of
the
LEVEL
control
rotation
.
J
Performance
Requirement
check
;
see
introductory
information
.
Performance
Check
and
Adjustment---71387
V
c
.
CHECK---Set
the
TRIGGERING
LEVEL
to
approx-
imately
midrange
and
check
that
the
TRIG'D
light
is
on
.
5-
9