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Triggering on Video Lines
To trigger on the video lines, follow these steps:
1. Press the “TRIGGER MENU” button to see the trigger
menu.
2. Press the top “option” button and select “Video”
3. Press the “Sync” option button and select “Line Num”
and turn the universal knob to set a specific line number.
4. Press the “Standard” option button and select “NTSC”.
5. Turn the “Time/Div” knob to see a complete video line
across the screen.
6. Turn the “Volts/Div” knob to ensure that the entire video
signal is visible on the screen.
4.6 Application of X-Y Function
Viewing Impedance Changes in a Network
Connect the oscilloscope to monitor the input and output of the
circuit. To view the input and output of the circuit in an XY
display, follow these steps:
1. Press the “CH 1” MENU button and set the Probe option
attenuation to 10X.
2. Press the “CH 2” MENU button and set the Probe option
attenuation to 10X.
3. Set the switch of the probe to 10X.
4. Connect the channel 1 probe to the input of the
network, and connect the channel 2 probe to the output.
5. Press the “AUTO” button.
6. Turn the “Volts/div” knobs to display approximately the
same amplitude signals on each channel.
7. Press the “DISPLAY” button.
8. Press the Format option button and select “XY”.
9. The oscilloscope displays a Lissajous pattern
representing the input and output characteristics of the
circuit.
10. Turn the Volts/div and VERTICAL POSITION knobs to
optimize the display.
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