Tektronix 2247A

f.4
Performance Check Procedure
Connect
function
generator
(FG
502)
output
to
the
CH
1
Input
via
a
50
1
BNC
coaxial
cable,
and
a
50
2
BNC
termination.
Set
function
generator
(FG
502)
output
to
produce
a
7.0
division
sine-
wave
display
at
500
Hz.
Add
a
10X
and
a
2X
BNC
attenuator
before
the
50
1
BNC
termination
(for
a
0.35
division
display)
.
NOTE
The
Trigger
LEVEL
control
may
be
used
to
obtain
a
stable
display.
CHECK-—that
the
display
Is
stably
triggered
with
DC,
HF
REJ,
and
AC
Trigger
CPLG;
and
that
the
display
will
not
trigger
on
NOISE
REJ
or
LF
REJ
Trigger
CPLG.
Set:
A Trigger CPLG DC
Horlzontal MODE B
A/B SELECT B Trigger
B Trigger MODE NORM
B Trigger SOURCE VERT
B Trigger SLOPE ~~ (positive-
going)
B SEC/DIV 0.5 ms
DELAY Time 20.000
(minimum
delay time)
BINTEN For viewable
display
NOTE
It
may
be
necessary
to
adjust
the
Trigger
LEVEL
control
to
obtain
a display.
CHECK—that
using
the
Trigger
LEVEL
control,
the
display
can
be
stably
triggered
In
DC,
HF
REJ,
and
AC
Trigger
CPLG;
and
that
the
display
cannot
be
triggered
in
NOISE
REJ
or
LF
REJ
Trigger
CPLG.
Disconnect the test setup from the CH 1 input.
2247A
Operators
7-29