Hitachi V-355, Operation Manual

Page: 27 / 54

In order to expand the synchronization range , AC coupling is
applied to the CH2 side.
When either the C H I or CH2 input signal is smaller as shown
in Fig.2 , ad
j
ust the VOLTS
/
DIV switches
@
and
@
to
obtain sufficient amplitudes.
The VERT MODE triggering requires 1 .5 div more than the
amplitude required for an observation of CH I or CH2.
CH I
ov-
�
CH2
ov
�
Fig. 2
The VERT MODE triggering is not possible when the signal
is applied to only one channel as illustrated on Fig.
3.
24
cH2
Fig. 3
Cautions
:
Do not use the INT TRIG to the VERT MODE
when
VAR
and
/
or
@
are in the pulled out
PULL
xS
GAIN
position
(xS
GAIN mode
)
.