UTD2000M
User
Manual
Fig.
3
‐
10
Video
Field
Trigger
Video
Row
Trigger
To
do
video
row
trigger,
please
follow
the
following
steps
to
operate:
1
．
Press
MENU
key
located
in
the
trigger
control
area
to
display
trigger
menu;
2
．
Press
F1
key
and
then
use
“MULTIPURPOSE”
knob
to
set
trigger
type
as
“Video”;
3
．
Press
F2
key
and
then
use
“MULTIPURPOSE”
knob
to
set
trigger
source
as
“CH1”;
4
．
Press
F5
to
enter
into
Video
Setting.
Press
F1
to
set
video
format
to
PAL;
5
．
Press
F2
and
then
use
“MULTIPURPOSE”
knob
to
select
row
synchronization;
6
．
Use
“MULTIPURPOSE”
knob
to
set
the
“row”
to
be
any
row;
7
．
Time
base
knob
located
in
the
horizontal
control
area
should
be
used
to
adjust
horizontal
time
base
so
as
to
get
a
clear
waveform
display.
Fig.
3
‐
11
Video
Row
Trigger
3.7
Example
of
Less
Amplitude
Pulse
Trigger
Less
amplitude
pulse
in
digital
signal
normally
represents
metastable
condition
and
may
put
the
digital
system
into
an
unknown
state.
To
capture
the
waveform
of
such
unknown
state,
we
can
choose
less
amplitude
pulse
trigger.
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