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Calibration input type

669 Views 4 Replies 4 Participants Last post by HiJon89, Dec 24, 2005

cb9fl

Discussion Starter · Dec 24, 2005

I'm trying to clarify exactly what an ISF calibration would entail. I usually notice the service is for one input type.

My tv has 7 video inputs and four types (composite, s-video, component, HDMI). Would calibration of one input type mean that if component video was calibrated it would be correct for all physical inputs (1-7) but that the rest (composite, s-video, HDMI) would not be correct?

Or does it mean that component could be calibrated on video1 but component on video2 would be off.

Or does it mean that all of video1 (component, composite, s-video) would be calibrated rather than simply component on video1?

I guess the last option would be that only one input type on one physical input would be calibrated. For example component on video1 would be correct but all other inputs would not be calibrated.

Which scenario properly describes the process?

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HiJon89

· #2 · Dec 24, 2005

The settings in the service menu apply to only one input at a time so if one input is calibrated it will have no effect on the others.

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ADU

· #3 · Dec 24, 2005

I think color-decoders and greyscale (probably the two most crucial areas an ISF would address color-wise) are usually global, as in one setup for the whole display. Though there are probably black level/color/hue/sharpness/etc. offsets for each input (and signal?) as well.

If a display is well-configured by the mfr to begin with, then I suspect that a knowledgeable calibrator should be able to ballpark the color (more or less) for the whole display by doing the basic color decoder/greyscale calibration through a single input. Once that basic work is done, then perhaps only minor tweaking of black level and color offsets would be needed to bring other inputs/signals into final adjustment.

You probably would not want to use the digital (DVI/HDMI) input for the basic greyscale/color-decoder calibration though because those inputs usually work a bit different than the analog inputs, and often seem to need a little extra attention color offset-wise.

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jimwhite

· #4 · Dec 24, 2005

"The settings in the service menu apply to only one input at a time so if one input is calibrated it will have no effect on the others."

certainly not true for all TV's....

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HiJon89

· #5 · Dec 24, 2005

Quote:

Originally Posted by jimwhite
"The settings in the service menu apply to only one input at a time so if one input is calibrated it will have no effect on the others."

certainly not true for all TV's....

Well that clears things up

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