Component Connections - Confused ??

[SA000584]

I purchased the Sony DB790 recently and now thinking about setting up component video switching. I understand that component cables provide best quality pictures but I am confused as there are two types of component cables (RGB and Y,Pb & Pr) which are not compatable.

My setup has following connection types:
- Foxtel Digital Pace Satellite box - Scart connection
- TV - Y, Pb & Pr Component connection
- DVD - Y, Pb & Pr Component connection
- Receiver - Says on the back panel : Y PB/CB/B-Y PR/CR/R-Y

The RGB is used through a Scart connection with the other type using RCA connectors.

Could you please provide some advise on whether my receiver can convert RGB signal into the other component signal that my TV can recognise.

[Gadgets]

RGB is one standard, with variations on how the sync pulse is carried
Component is labelled YPrPb, YCrCb or YUV

You will need an 'RGB over SCART' to Component converter... thanks to
Fuxtel deciding to go Euro standards rather than Jap/US/Aus...

Repost: 'Scart to Component Problem' thread 25Mar04
"Hi, you can't convert fron RGB to Component with just a cable, you need
something with electronics in it such as the one in the link below, I user
one of these on my Digital STB to Sony Tv and it works great."
http://www.australiandigitaltv.com/converter.php

Cheers, Jason (remove ... to reply)
Video & Gaming: http://gadgetaus.com
DVD Rentals Online: http://webflicks.com.au/?u=47905

[John]

"Gadgets" <info@gadgetaus...com> wrote in message
news:4116177a$1@news.comindico.com.au...
> RGB is one standard, with variations on how the sync pulse is carried
> Component is labelled YPrPb, YCrCb or YUV
>
> You will need an 'RGB over SCART' to Component converter... thanks to
> Fuxtel deciding to go Euro standards rather than Jap/US/Aus...

I wouldn't say that...

RGB is a better signal than component video. Equipment mostly uses
component because it requires less bandwidth, that's all. It's not really a
question of region standards.

Regards
John

[jrobbo]

On Mon, 9 Aug 2004 20:36:57 +1000, "John" <nospam@afp.gov.au> wrote:

>"Gadgets" <info@gadgetaus...com> wrote in message
>news:4116177a$1@news.comindico.com.au...
>> RGB is one standard, with variations on how the sync pulse is carried
>> Component is labelled YPrPb, YCrCb or YUV
>>
>> You will need an 'RGB over SCART' to Component converter... thanks to
>> Fuxtel deciding to go Euro standards rather than Jap/US/Aus...
>
>I wouldn't say that...
>
>RGB is a better signal than component video. Equipment mostly uses
>component because it requires less bandwidth, that's all. It's not really a
>question of region standards.

Unlike composite to SVideo, Component can be converted RGB and
vice-versa without loss, and very easiliy. It's an exact science, so
how can one be better than the other?

Although what you sat about component requiring less bandwidth is
true, that's not the only reason why equipment uses it. The real
reason is that MPEG2 (and therefore digital TV and DVD also), is by
definition, a component format. Outputing a component signal is
therefore just a matter of A to D conversion.

The OP was referring to SCART being a Euro standard, not component or
RGB etc.

Regards

John (another dinosaur CRT owner)


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[Italo]

"jrobbo" <newsSPAMSUCKS@jrobbo.com> wrote in message
news:kklfh01360bnejrag6m67pql6n5gkl7oba@4ax.com...
> On Mon, 9 Aug 2004 20:36:57 +1000, "John" <nospam@afp.gov.au> wrote:
>
> Although what you sat about component requiring less bandwidth is
> true, that's not the only reason why equipment uses it. The real
> reason is that MPEG2 (and therefore digital TV and DVD also), is by
> definition, a component format. Outputing a component signal is
> therefore just a matter of A to D conversion.

The reason the MPEG2 (DVD) format uses Component is because the colour
information is compressed. RGB has uncompressed colour channels at full
bandwidth, this does make RGB the better format theoretically.

It does leave the question of why RGB (SCART or otherwise) does not provide
for a 'progressive' output, which someone with better technical knowledge
might be able to answer.

--
Italo

[jrobbo]

On Tue, 10 Aug 2004 06:29:28 +1000, "Italo"
<italotettoni.nospammingallowed@gmx.net> wrote:

>It does leave the question of why RGB (SCART or otherwise) does not provide
>for a 'progressive' output, which someone with better technical knowledge
>might be able to answer.

I think (though I don't know for sure) that it is just a matter of
bandwidth. The SCART connector (just like SVideo connectors) doesn't
maintain 75 ohm impedence, which dosn't matter too much at the low
frequencies used by standard interlaced signals, but can lead to
serious signal degradation of the signal when used for higher
frequencies encountered with Progressive and High Definition signals.

SCART really is a totally crappy connector, it's one redeeming feature
being that it lets complete twits hook their VCR up to their TV
without too much trouble.

Regards

John



--------------
To reply via email, remove the spam block from my email address

[John]

"jrobbo" <newsSPAMSUCKS@jrobbo.com> wrote in message
news:kklfh01360bnejrag6m67pql6n5gkl7oba@4ax.com...
> On Mon, 9 Aug 2004 20:36:57 +1000, "John" <nospam@afp.gov.au> wrote:
>
> >"Gadgets" <info@gadgetaus...com> wrote in message
> >news:4116177a$1@news.comindico.com.au...
> >> RGB is one standard, with variations on how the sync pulse is carried
> >> Component is labelled YPrPb, YCrCb or YUV
> >>
> >> You will need an 'RGB over SCART' to Component converter... thanks to
> >> Fuxtel deciding to go Euro standards rather than Jap/US/Aus...
> >
> >I wouldn't say that...
> >
> >RGB is a better signal than component video. Equipment mostly uses
> >component because it requires less bandwidth, that's all. It's not
really a
> >question of region standards.
>
> Unlike composite to SVideo, Component can be converted RGB and
> vice-versa without loss, and very easiliy. It's an exact science, so
> how can one be better than the other?

I think there's two things here - for DVD's, yes, there isn't much
difference as the data is stored on the DVD in component format. However,
for true RGB source material, it is better to keep it in this format to the
display device (assuming an RGB display) becuase when you convert RGB ->
Component, you seperate the luminance from the Red and Blue and loose the
Green entirely (about 3 times B/W compression). Yes, these can then be
re-created, but it's an interperative operation. An exact science yes, but
I'm not 100% that it's perfect... When I worked at NEC, I know that we
soley used RGB for transmission devices (and management sets) because the
signal could be easily (and better) controlled through voltage bias than
component. With RGB (or RGBHV), there is no question about colour control.

I do agree with you though.

....Just don't get me started on the whole RCA connector business.... urg.

> Although what you sat about component requiring less bandwidth is
> true, that's not the only reason why equipment uses it. The real
> reason is that MPEG2 (and therefore digital TV and DVD also), is by
> definition, a component format. Outputing a component signal is
> therefore just a matter of A to D conversion.
>
> The OP was referring to SCART being a Euro standard, not component or
> RGB etc.

Ahh, yes, no probs there! My misinterpretation :-)

> Regards
>
> John (another dinosaur CRT owner)

Excellent! That makes a few of us now, we'll have to start our own ng...!
:-)

[Italo]

"jrobbo" <newsSPAMSUCKS@jrobbo.com> wrote in message
news:st7gh093sausldk7hlh2h7pcb4id9rg10n@4ax.com...
> On Tue, 10 Aug 2004 06:29:28 +1000, "Italo"
> <italotettoni.nospammingallowed@gmx.net> wrote:
>
> I think (though I don't know for sure) that it is just a matter of
> bandwidth. The SCART connector (just like SVideo connectors) doesn't
> maintain 75 ohm impedence, which dosn't matter too much at the low
> frequencies used by standard interlaced signals, but can lead to
> serious signal degradation of the signal when used for higher
> frequencies encountered with Progressive and High Definition signals.

Yep, that makes sense.

>
> SCART really is a totally crappy connector, it's one redeeming feature
> being that it lets complete twits hook their VCR up to their TV
> without too much trouble.

Great connection but crappy plug, I agree.

>
> Regards
>
> John

Cheers

--
Italo

[jrobbo]

On Tue, 10 Aug 2004 22:10:35 +1000, "John" <nospam@afp.gov.au> wrote:

>> John (another dinosaur CRT owner)
>
>Excellent! That makes a few of us now, we'll have to start our own ng...!
>:-)
>

John,

We already have! Send me an email and I'll give you the details

Regards

John

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[Earl]

Is there a informative website ( that relates to Australia ) for newies that
explains and perhaps has pic s on the various types and thier uses etc ?
earl

"jrobbo" <newsSPAMSUCKS@jrobbo.com> wrote in message
news:6baih0paq5cbolifi5c50tqguhpsb3lk6k@4ax.com...
> On Tue, 10 Aug 2004 22:10:35 +1000, "John" <nospam@afp.gov.au> wrote:
>
> >> John (another dinosaur CRT owner)
> >
> >Excellent! That makes a few of us now, we'll have to start our own
ng...!
> >:-)
> >
>
> John,
>
> We already have! Send me an email and I'll give you the details
>
> Regards
>
> John
>
> --------------
> To reply via email, remove the spam block from my email address

[SA000584]

This is good article on video cables.

http://www1.electusdistribution.com.au/images_uploaded/videosig.pdf

[safari]

- Foxtel Digital Pace Satellite box -

Do you realy still have the old Pace box ?

They are as old as the hills, beter ones around these days.

[SA000584]

[QUOTE=safari]Do you realy still have the old Pace box ?

Yes, I have one, but these are brand new pace digital satellite boxes, that I received from Foxtel in May 2004. It has optical out for Dolby Digital and the only thing wrong with them is they have SCART connections which is of no use to me.