B&K Precision 2552-2559 - Manual - Manual (Page 138)

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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.
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.
11. Press the “Persist” option button and select “Infinite”.
12. Press the “Intensity” or “Brightness” option buttons and turn the
“Universal” knob to adjust the contrast of the screen.
Apply the Ellipse method to observe the phase difference between the two
channels