Instructions

Digital Storage Oscilloscope 29
selected. The series of scope support standard video signal field or line of NTSC
(National Television Standards Committee), PAL (Phase Alternating Line).
1. Press the [Trig Menu] button on the front panel to enter the Trigger function menu.
2. Press the Type softkey, then turn the Universal Knob to select Video and push
down the knob to confirm.
3. Press the Source softkey turn the Universal Knob to select CH1~CH4 as the trigger
source.
4. Press the Standard softkey to select the desired video standard. The series of
scope support the following video standards: PAL and NTSC.
5. Press the Sync softkey, then turn the Universal Knob to select field or line.
2.7.4 Slope Trigger
The slope trigger looks for a rising or falling transition from one level to another level in
the specified time range. In the series of scope, positive slope time is defined as the
time difference between the two crossing points of trigger level line A and B with the
positive edge as shown in the figure below.
1. Press the [Trig Menu] button on the front panel to enter the Trigger function menu.
2. Press the Type softkey, turn the Universal Knob to set select Slop and then push
the knob to confirm.
3. Press the Source softkey, turn the Universal Knob to select CH1~CH4 as the trigger
source.
4. Press the Slop softkey, turn the Universal Knob to set select the desired trigger
edge (rising or falling), and then push down the knob to confirm.
5. Press the Level softkey and press of Lower Upper softkey to select Lower(V2) or
Upper(V1) the trigger level; then turn the Trigger Level Knob to adjust the position.
The trigger different level value between Upper and Lower is displayed at the upper