User’s Manual of
OWON
Colour Digital Storage Oscilloscope
48
Function
Menu
Setting Description
Source
CH1
CH2
EXT
EXT/5
Set Channel 1 as the trigger signal of the source.
Set Channel 2 as the trigger signal of the source.
Set the external input channel as the trigger signal of
the source.
Divide the external trigger source by 5 and expand the
external trigger level range.
Type Video
Set
vertical
channel
trigger type for video trigger.
Video Type
Sync
Line
Field
Odd field
Even field
Designed Line
Set a trigger level synchronization in the video line.
Set a trigger level synchronization in the video field.
Set synchronous trigger in the video odd field.
Set synchronous trigger in video even field.
Set synchronous trigger in designer line.
Modulation
NTSC
PAL/SECAM
Set synchronization and account choose video
standard.
Holdoff 100ns
~
10s
Turn “TRIG LEVEL” knob to set time slot before
another trigger event
HoldOff
Reset
Reset hold time to 100ns.
The operation steps for setting Channel 1 in Video Trigger Mode are as below:
1.
Press the TRIG MENU button and call out the trigger menu.
2.
Press the F1 menu selection button and choose single for Type.
3.
Press the F2 menu selection button and choose CH2 for Source.
4.
Press the F3 menu selection button and choose Video for Type.
5.
Press the F4 menu selection button and choose Field for Sync. The screen display is
shown as Fig.38.
6.
Press the F2 menu selection button and choose CH1 for Source.
7.
Press the F4 menu selection button again and choose Line for Slope. The screen display
is shown as Fig.39.