RGBHV vs YpYbPr

[drewzor]

could someone explain exactly what the difference is between these outputs?

RGBHV vs YpYbPr (component)

Thanks

[drewzor]

Well I guess what I'm asking is if there is a benefit to
using RGBHV (VGA) over YpYbPr (component)?

[BJ_M]

yes there can be -- depends on the application really (i.e. equipment being used)

[Marvingj]

he RGB signal has two specific problems associated with it in the professional video world. Firstly, it has a very high bandwidth. Secondly, the colour and the black and white picture information are combined within the RGB signal. This is dealt with in the professional video world by converting the RGB signal into a component signal, also referred to as a YPbPr or YCbCr signal. The Y component of this signal is the black and white information contained within the original RGB signal. The Pb and Pr signals are colour difference signals, which are mathematically derived from the original RGB signal. For our purposes, it is sufficient to understand that the Y signal contains full bandwidth black and white picture information, and the colour difference signals contain bandwidth reduced colour information.

It is important to realize that component video output and RGB video output are not the same and are not directly compatible with each other, however, they are easily converted either way using a transcoder. Note that transcoders are generally professional-level video equipment and priced accordingly. You should expect to pay around $1000 US for an external transcoder, so this is an impractical solution for all but those of you with high end projection equipment and/or a high end DVD player.

HD Component YpYbPr

[drewzor]

Well thanks guys, I have this this TV
http://www.sony.com.au/catalog/product.jsp?id=KVHX32M31&section=arch&term=76cm+crt
And I wanted to connect RGBHV if it was better for the HD SET TOP. But after try'n it I couldn't tell much of a difference and so bought this http://www.sony.com.au/homecinema/homecinema/catalog/product.jsp?id=DSTHD500&section=p...erm=HD+SET+TOP

[BJ_M]

that TV doesnt have a RGBHV input - nor a HDMI/DVI input

[drewzor]

IT does have RGB HV (red green blue black and white RCA inputs)

But the sony set top run through just component is impressive enough for me

[BJ_M]

RGBHV is usually a SVGA 15pinHD connection or BNC --- funny they dont mention it in the specs even having it , also REALLY odd to be on rca connectors , maybe for that market it some special one off thing .....

[drewzor]

Well I have the VGA 15pin to RCA breakout cable, my thoughts were because I could not tell much of a difference when I connected my old HD set top with it compared to Component that It might be possible that the sony's RGBHV input does not process the full signal properly..
Which would explain the lack of difference.

It was a slightly harder image (better colour gradients) but not enough that it was of great benefit.

To simplify my answer to the question
RGBHV does not seem to offer much greater benefit over Component in my situation.

[BJ_M]

often the video processing engine is all or partially bypassed on RGBHV - and/or no color or signal correction