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Measurements
1780R-Series Operator’s Manual
4–25
Table 4–6: Chroma / Luma Front-Panel Configuration
VECTORSCOPE Vector display initially enabled, other choices locked out.
Chroma-to-Luma Lissajous display selected by touching
<VECTOR / C/Y> area of screen.
WAVEFORM Waveform display enabled, other choices locked out.
INPUT Status does not change. All differential modes locked out; if
a differential mode was enabled, input is forced to CH A.
REFERENCE Status does not change.
FILTER Flat filter automatically selected. Other choices locked out.
WFM SWEEPS Sweep settings (typically X10 or X20 Mag) selected by
operator are saved and re instated each time the Chroma /
Luma mode is enabled.
GAINS Vectorscope and Waveform gain settings selected by
operator are saved and reinstated each time the Chroma /
Luma mode is enabled.
WAVEFORM POSITION Horizontal and Vertical Position control settings selected by
operator are saved and reinstated each time the Chroma /
Luma mode is enabled.
VOLTAGE & TIMING
CURSORS
Voltage cursors are automatically enabled. Cursors can be
used to extract stored nomograph data.
3. Set Left Lobe Amplitude
a. Position Cursor 1 on the point of the left lobe that is
furthest from the baseline. Leave Cursor 2 on the baseline.
b. Touch <ENTER>.
4. Set Right Lobe Amplitude
a. Position Cursor 1 on the point of the right lobe that is
furthest from the baseline. If no right lobe is present
(indicating no delay error), set Cursor 1 to the baseline.
Leave Cursor 2 on the baseline.
b. Touch <ENTER>.
5. Set Modulated Sine-squared Pulse H.A.D.
Measurements
1780R-Series Operator’s Manual
4–25
Table 4–6: Chroma / Luma Front-Panel Configuration
VECTORSCOPE Vector display initially enabled, other choices locked out.
Chroma-to-Luma Lissajous display selected by touching
<VECTOR / C/Y> area of screen.
WAVEFORM Waveform display enabled, other choices locked out.
INPUT Status does not change. All differential modes locked out; if
a differential mode was enabled, input is forced to CH A.
REFERENCE Status does not change.
FILTER Flat filter automatically selected. Other choices locked out.
WFM SWEEPS Sweep settings (typically X10 or X20 Mag) selected by
operator are saved and re instated each time the Chroma /
Luma mode is enabled.
GAINS Vectorscope and Waveform gain settings selected by
operator are saved and reinstated each time the Chroma /
Luma mode is enabled.
WAVEFORM POSITION Horizontal and Vertical Position control settings selected by
operator are saved and reinstated each time the Chroma /
Luma mode is enabled.
VOLTAGE & TIMING
CURSORS
Voltage cursors are automatically enabled. Cursors can be
used to extract stored nomograph data.
3. Set Left Lobe Amplitude
a. Position Cursor 1 on the point of the left lobe that is
furthest from the baseline. Leave Cursor 2 on the baseline.
b. Touch <ENTER>.
4. Set Right Lobe Amplitude
a. Position Cursor 1 on the point of the right lobe that is
furthest from the baseline. If no right lobe is present
(indicating no delay error), set Cursor 1 to the baseline.
Leave Cursor 2 on the baseline.
b. Touch <ENTER>.
5. Set Modulated Sine-squared Pulse H.A.D.