Magni AVM-510A Series, Руководство оператора

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Automatic Measurement (AVM-510A)
9-6
To force the AVM-510A to use a specific measurement set:
1. Press the
Mesmnt
button.
2. Select SELECT SET and then press the
Entr
button.
3. Select the appropriate measurement set and then press the
Entr
button. This forces the AVM-
510A to use the selected measurement set.
4. Select MEASUREMENT LINE and then turn the knob to specify the line that you want measured.
Note that you can turn the knob through the end of one field and into the next, or press the
Field
Select button to change fields. The line number takes effect at the time it is selected.
NOTE:
The line selected in step 4 has no relationship to the line selected for waveforms
using the
Line Select
button.
5. Select SIGNAL ID and then turn the knob, or press the
Entr
button several times, to select one of
the following:
– AUTO SIG ID lets the AVM-510A determine what signal is on the selected line.
– A specific test signal that forces the AVM-510A to treat the signal as though it were this
signal and no other. If the selected signal is one that is normally used in the selected
measurement set, all the parameter lines will be active, whether or not they produce
meaningful measurements. If the signal is from another set, some parameters will be inactive
(gray).
– LIVE VIDEO inactivates most of the parameters in the Color Setup or Frequency Response
measurement sets, leaving only those that are applicable to active video. The System Video
measurement set is designed to measure Live Video, so all parameters are active.
6. Press the Clr Mnu button to exit.
In step 3, you selected a specific measurement set when you pressed the Entr button. That is the
measurement set that will be applied each time you push the
Auto Meas
button. If you selected a
specific test signal (step 5), that is the test signal that will be recognized by the AVM-510A when you
use that measurement set.
If you select AUTOMEASURE/AUTO MEAS SET (step 3) instead of a specific measurement set, this
overrides any test signal you selected in step 5. For example, if you select AUTOMEASURE/AUTO
MEAS SET, and the AVM-510A detects CCIR18 on the selected line, it applies the Frequency
Response measurement set and recognizes the signal as CCIR 18, even if the FREQUENCY RESP set
was set to 75% Color Bars. However, the limits you established for that measurement set are the ones
applied to the test signal. AUTOMEASURE/AUTO MEAS SET has no way to change the limits.