Operating
Instructions—7A42
Press
the
GND
pushbutton
17.
Notice
that
the CH1
GND
indicator
18
is
illuminated
and
that
the
CH
1
waveform
19
and
TRIG
VIEW
waveform
20
are
replaced by
a
baseline
trace
(the
CH1
input
is
now
referenced to
ground).
Press
the
GND
pushbutton
21
again.
The
CH1 GND
indicator
22
is
now
extinguished
and
the
baseline
traces
are
replaced
by
the
CH1
waveform
23
and
the
trigger
view
waveform
24.
2-19