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Operating Instructions
1780R-Series Operator’s Manual
3–49
For 1781R (PAL), touch <GAIN CAL> and use the large
knob to make the circle match the compass rose.
b. Touch <CAL OSC> until <OFF> is outlined.
6. To check the Vectorscope Gain adjustment, push the front-panel
CALIBRATE button to enter the Calibration menu, then push the
button under the left CRT.
a. Apply a color bar signal (with 7.5% Setup for NTSC) to a
1780R-Series input channel and select that channel for
display. A 100% or 75% color bar signal can be used,
depending on the vectorscope readout (derived from the
Configure menu setting).
b. Push the front-panel PHASE button and adjust the large
knob to properly align the phase of the burst and vectors
on the graticule. Push the PHASE button again to exit this
mode.
c. For 1780R (NTSC): Touch <GAIN 1 CAL>. Check that
the color bar vectors are in the graticule boxes. Set the
generator to 0% Setup, touch <GAIN 2 CAL (NO
SETUP)> and check that the color bar vectors are in the
graticule boxes. Return the generator to 7.5% Setup if
desired.
For 1781R (PAL): Touch <GAIN CAL>. Check that the
color bar vectors are in the graticule boxes.
d. Exit Calibrate menu.
Vectorscope Calibration Procedure
(for Software Versions 1.10 & Below)
Perform Steps 1 through 6 for both 1780R and 1781R (NTSC and
PAL).
1. Push the front-panel CALIBRATE button to enter the Calibration
menu. If Password operation is enabled, enter the password now.
Waveform calibration will be displayed.
2. Push the button under the left CRT (LED will light) to select
Vectorscope calibration, shown in Figure 3–23.
Operating Instructions
1780R-Series Operator’s Manual
3–49
For 1781R (PAL), touch <GAIN CAL> and use the large
knob to make the circle match the compass rose.
b. Touch <CAL OSC> until <OFF> is outlined.
6. To check the Vectorscope Gain adjustment, push the front-panel
CALIBRATE button to enter the Calibration menu, then push the
button under the left CRT.
a. Apply a color bar signal (with 7.5% Setup for NTSC) to a
1780R-Series input channel and select that channel for
display. A 100% or 75% color bar signal can be used,
depending on the vectorscope readout (derived from the
Configure menu setting).
b. Push the front-panel PHASE button and adjust the large
knob to properly align the phase of the burst and vectors
on the graticule. Push the PHASE button again to exit this
mode.
c. For 1780R (NTSC): Touch <GAIN 1 CAL>. Check that
the color bar vectors are in the graticule boxes. Set the
generator to 0% Setup, touch <GAIN 2 CAL (NO
SETUP)> and check that the color bar vectors are in the
graticule boxes. Return the generator to 7.5% Setup if
desired.
For 1781R (PAL): Touch <GAIN CAL>. Check that the
color bar vectors are in the graticule boxes.
d. Exit Calibrate menu.
Vectorscope Calibration Procedure
(for Software Versions 1.10 & Below)
Perform Steps 1 through 6 for both 1780R and 1781R (NTSC and
PAL).
1. Push the front-panel CALIBRATE button to enter the Calibration
menu. If Password operation is enabled, enter the password now.
Waveform calibration will be displayed.
2. Push the button under the left CRT (LED will light) to select
Vectorscope calibration, shown in Figure 3–23.