Datavideo SE-500 Instruction Manual page 40

Next adjust the hue control until the cyan and magenta vertical bars are of the same brightness. Use the
same technique described above, matching the vertical bar with the diagonally opposite horizontal bar of the
same color.
The goal of these last 2 adjustments, to chroma and hue, is to make the 4 large vertical bars (gray, cyan,
magenta, and blue) of all the same intensity or brightness.
When that is done, turn off the blue only switch or remove the blue filter, and look at some program material
(video) with skin tones, and use that as a somewhat subjective (though accurate) basis for making fine
tuning adjustments to chroma and hue.
If you have a waveform monitor and/or a vector scope, you can and probably do use it to check and adjust
the input video signals. The instruction manual will give you all the information you need.
But, if you don't have a waveform monitor/vector scope to adjust incoming video, you can make those
adjustments by eye, using the SE-500's color processing controls, now that you have a properly calibrated
program monitor. The process for each input channel will be very similar to the process we just used to
calibrate the program monitor, except we were adjusting the controls on the monitor, and now we will be
adjusting the controls on the SE-500.
For each input you plan to be using, have a valid signal and adjust the Color Processor controls on the SE-
500 in this order:
1. Set Y-Gain to Zero; turn color all the way down so that the image is gray;
2. Adjust brightness until the image shows shadow detail and no blown out highlights;
3. Adjust Y-Gain until just before the highlights bloom;
4. (NTSC only) Bring the color control back to its midpoint; adjust hue so that the skin
tones look natural;
5. Adjust color, and hue if necessary, to keep the skin tones natural and not oversaturated
(too red).
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